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Trusted Traders

The Boiler Installation Specialists Ltd

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours
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5.0

42 Reviews

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

About

New a new boiler?

Get your new A-rated boiler and start to save money. Instant quote in 3 simple steps including supply & installation of your new boiler and up to 10 year guarantee for total peace of mind.

Great boiler finance packages available to suit every budget with our 0% APR option, Buy Now Pay Later or our bank buster package - with or without a deposit you can now get your new boiler with a payment plan that suits your budget & lifestyle.

A warm welcome to The Boiler Installation Specialists Ltd. We are a family run central heating and boiler installation specialists firm covering South East of England, installing central heating systems and boiler installations up to 7 days a week.

Our team of engineers have worked solidly within the industry for over 30 year & we are proud to say that we are one of the most highly recommended installation firms in South East of England.

Call us today to get your free of charge quote on 0345-262 49 89

What we do

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Gas cooker installation
    • Radiators and central heating
    • Gas safety testing and inspection
    • Power flushing
  • Gas installers

  • Heating contractors

    • Central heating systems (installation and servicing)
    • Immersion Heaters
    • Oil fired heating equipment
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
  • More Services

    • oil boiler installation

Customer reviews

5.0
42 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
Excellent service
Customer Service
Quality
Value
We had a new boiler fitted, the work was carried out when it was agreed, within the timescales promised and to the agreed costs. Nina in Customer Service was very helpful, she helped us to get the best value product to meet our needs and kept us updated with what was happening in the lead up to the installation. The engineers, Connor and Christian, were very clear about what they were doing and kept me informed at every stage. They also cleared up every sign of their presence before they left. They even fixed a faulty switch which was not part of their responsibility. I could not recommend this company highly enough.
Customer in Northamptonshire05/11/2019
Excellent reliable, helpful, and friendly installers
Customer Service
Quality
Value
I have just used the Boiler Installation Specialists for the first time to install boilers in two adjoining rental properties, and I am really delighted with the quality of the work they have completed. Both installations were completed quickly, to a very high standard, and for a reasonable fixed price (with no "extras" charged after completion). Chris was very good to work with on site, communicating efficiently and with a totally "can-do" approach to the slightly complicated work that was necessary to complete these jobs. Nina in their office was also very friendly, helpful, and efficient in scheduling the jobs and very responsive to all of my queries. There was one minor change that was needed after the job had been completed and they responded quickly and without any hesitation to resolve the issue. The installation of these two boilers has been as easy and straightforward as I could have hoped for and I will use this company again without hesitation.
Customer in Hertfordshire15/10/2019
Competent Service
Customer Service
Quality
Value
The two Boiler Installation Engineers (Jordan and Mason) arrived at 7 am, started work immediately and had completed the job by about 11.30 am. The job being the replacement of the boiler together with the hot water cylinder and immersion heater. They also took away all the old/waste material and left the premises clean. They were both courteous, pleasant and seemed very competent.
DJ, London Colney20/07/2019
SIMPLY THE BEST BOILER FITTERS
Customer Service
Quality
Value
Had a new Bosch Greenstar 30i fitted.The workman ship was to a very high standard.Everything was done in a clean and tidy way with all the pipe work tided up and no mess left behind. The fitters arrived on time, were polite and considerate and covered all carpets before starting work. Best price. Best workmanship. Would recommend this company.
Bob, Essex27/06/2019
Excellent service, professional and courteous
Customer Service
Quality
Value
From start to finish I could not have found a better service. Nina's knowledge, advice and thoroughly efficient administrative skills were invaluable in finding me the right Worcester boiler for my home. Nina organised the fitting and how to pay for it all - a first class service. Jordan, Connor and Mason arrived promptly on the day and worked together, led by Jordan, to provide brilliant service. Courteous and professional, they explained what they were doing and we're happy to answer any questions I had. They knew exactly what they were doing and when they'd finished I had a lovely, new and efficient boiler warming my home. Plus, they were so clean and tidy the only thing I had to do was wash up the tea mugs.
Customer in Essex09/03/2019
Efficient and Professional
Customer Service
Quality
Value
Chris, working with another gentleman installed a Worcester Bosch Greenstar 18Ri Gas Boiler. From the moment they walked in the door to the time when all work was finished they were friendly polite and considerate. Their work was both efficient and professional. The work was as quoted (no last minute extras). All work was carried out on schedule. All was made good on completion. The old boiler position was not in compliance with the new regulations. As a result the new boiler was located in a slightly different position. This required a new hole for the flue. The gap left by the old flue was properly repaired using new bricks. The electrical connections for the boiler and new controller were in accordance with regulations and safe. On completion the new installation was thoroughly checked by Chris. All radiators were checked for leaks and air locks these were bled as required. The boiler was also checked for any leaks. Any brick dust etc., was swept up, all was left clean and tidy. The operation of the boiler was explained. A Building Regulations Certificate was subsequently provided and the Gas Safe Register Informed. At the time of writing this review it being two months or so after the installation I remain happy to provide the highest recommendation for The "Boiler Installation Specialists Ltd" and their staff.
Customer in Hertfordshire16/01/2019
Excellent Service
Customer Service
Quality
Value
There was a quick and friendly response to our initial enquiry. This was followed by a visit on the same day, a written quote sent immediately by email and a date agreed for the fitting of a new boiler. They turned up on time, completed the work in the stated time and in an efficient and very pleasant manner and at the price agreed.
Customer in Essex07/01/2019
New Boiler and Cylinder
Customer Service
Quality
Value
On 5th November 2018 we had a new Viessmann boiler and new cylinder and all modern controls installed. After 9 hours the new system was installed and working. The entire team of Chris, Mason, Jordan and Connor worked exceptionally well, fast and clean. The work entailed floors up, new pipes and wiring with the full system of pump, valves and thermostats. We cannot recommend them highly enough.
rhaswell205/11/2018
No better Boiler replacement companies out there! Couldn't recommend highly enough!
Customer Service
Quality
Value
OK, so we needed; 1. to replace our forty-year old gravity fed boiler with a new 'Combi' and relocate to a new position 2. Replace and relocate multiple radiators 3. Extend existing hot/cold feeds for new downstairs WC 4. Relocate existing pipework to allow for new bathroom 5. In fact, in the end we decided to replace absolutely all the pipework! I cannot fault the Boiler Installation Company in any way! From my initial contact with Nina to Chris and the guys every single aspect of their service was fast, efficient and highly professional. I would like to thank Chris, Nina, Jordan and Mason for all their hard work and attention to detail, If I ever need to- I would not hesitate to use the boiler installation company again.
Gary and Nicola31/08/2018
3 storey town house Combi Conversion in Basildon Essex.
Customer Service
Quality
Value
Great experience. Competitively priced. Willing to explore options with me and explained alternatives. Intial fixed price offered over the phone which was surprisingly competitive. Followed by a free survey at my request which resulted in a better solution at lower cost. Scope: convert 40 year old, tank fed hot water and heating boiler, to a Worcester Bosch 32 CDI Compact Combi boiler with 10 year warranty. Three storey town house with 8 radiators, one bath room plus one ground floor cloakroom. Boiler installed in garage. Engineers arrived on time and were very courteous. As one laid carpet protectors throughout, the other went through the sequence of events and asked if I had any questions since the initial survey. They started work about 8 am and by about 6pm the new boiler and flue where installed and water reconnected. All waste was removed including loft tanks, redundant pipework, old cylinder, old lagging and redundant control electrics. The next morning (another prompt arrival) saw the system thoroughly flushed, radiators bled and heating system fully commissioned. Controls were explained and warranty paperwork completed. I was sceptical that a quote "sight unseen" over the phone would be affordable but this was the most competive out of 5 quotes received and included a premium brand boiler & filter compared to other mid range offerings. I encountered a small problem with existing pipework which was sorted within an hour of reporting late on a Saturday evening.
Jeremy C. Basildon Essex13/08/2018
Highly professional job.
Customer Service
Quality
Value
I needed a boiler replacement in a hurry and The Boiler Installation Specialists fitted the bill perfectly. From initial communication with Nina on switchboard, who was extremely helpful, to the job being carried out, I can only praise the installers work highly. They took only two days to re-site the boiler and install a brand new one very efficiently and with no mess or complications. The price was reasonable and didn't change once agreed, I am very happy with the job and would highly recomend this firm.
Sara Naudi09/08/2018
New heating system removing warm air units
Customer Service
Quality
Value
If you are looking for a high quality company, I highly recommend TBIS. They are the very best in the field, no compromise. I pass my thank you to Nina & engineers for outstanding quality of work & service. Highly recommended.
Spooner210329/07/2018
Excellent service
Customer Service
Quality
Value
ITBIS did an excellent job and worked so hard work when replacing our old hot air heating system with a combi boiler and new radiators. It is always difficult to have work done in the house, where lots of money is being spent, where difficult decisions need making and where things don't always go to plan! Not to mention all the mess and chaos of the work itself. However, the guys were so polite, helpful, friendly, tidy, informative and diligent that they made it all so easy and painless. And most importantly they did an excellent job: we have a super new set of radiators to keep us toasty (when the time comes!) and lovely hot water throughout which (we can appreciate now!). When an unforeseen difficulty arose, regarding a separate hot water system in our kitchen, it was dealt with quickly and efficiently. I was immediately reassured that the problem woukd be solved, and no extra cost was charged (even for the nice new tap they bought and fitted!) Nina, the business manager provided clear information and was a friendly and reassuring voice on the end of the phone (and email!) throughout the process. I would definitely recommend this company.
Chloe Saunders07/06/2018
Excellent. Fast, friendly and efficient.
Customer Service
Quality
Value
What luck to have this company practically on my doorstep! Friendly, helpful and prepared to explain everything without resorting to jargon, Nina was really quick to respond to my request for a quote, and at a time that suited me, unlike others who kept ringing while I was at work! The installation then took place within the week and passed off perfectly. It's never a pleasure to have to fork out to replace something like a boiler, but this was as painless as could be and I cannot recommend this company highly enough.
Stuart Adams03/04/2018
New Boiler and 5 rads
Customer Service
Quality
Value
Friendly and highly professional company. The engineers Jordan and Mason were extremely courteous and polite, once the job was finished I did not even know that we had workmen here. Very clean, highly recommended company.
Davana06/02/2018
New boiler (back boiler united to combi)
Customer Service
Quality
Value
Nina the business manager was great and very knowledgeable I received a fantastic service from both Nina and her team of engineers whose workmanship was 10/10. Will definitely recommend to friends and family.
DrSantos16/09/2017
New Boiler - excellent service
Customer Service
Quality
Value
Courteous, professional, effective and efficient from stat to finish. From Nina's help and advice over the phone with the quotation to Chris' expert installation of new boiler, I have been pleased and impressed by this company. Chris actively welcomes questions from customers and is willing to talk through the whole process as he is working. He even called ahead to inform me of his arrival time. He went above and beyond by tidying pipework and fitting seal on external flue. Nina, too, impressed me with her willingness to answer any question on the phone. I thoroughly recommend this company.
cwillone14/04/2017
Incredible service
Customer Service
Quality
Value
From start to finish I was treated with utter professionalism. Nina is an asset to the company. She put me totally at ease and was thoroughly knowledgeable regarding all aspects of my needs. The engineers were polite, punctual and professional. They left my kitchen tidier than they found it. They replaced my old boiler with a new combi boiler and they handled it all with complete ease. I couldn't recommend this company enough. Thank you
Adamellis2007/04/2017
Superb Job!!!
Customer Service
Quality
Value
I had a really old conventional boiler replaced by a combi and the whole journey of customer service was fantastic! From initial calls with Nina who clearly explained the process and organised the event to Jordan and Mason who went above and beyond to ensure the installation exceeded my expectations. They arrived early in the morning and due to all their effort and hard work ensured the job was complete within the day. All parties were very knowledgeable and took the time to ensure I was happy at every step of the way. I absolutely recommend this company to anyone looking for a new boiler installation. Great job guys! Cheers! Dan, Andover
Dan short22/03/2017
Great work, quick turn around and fantastic price
Customer Service
Quality
Value
I have to say a very big thank you to the The Boiler Installation Specialist team. Nina was extremely helpful organising the installation and was very knowledgeable. I was able to book in an installation within 2 weeks of my initial call. Chris and Mason installed the boiler and worked extremely efficiently. Chris was particularly helpful, walking me through the whole process and taking time to explain how everything worked. After having issues with heating engineers in the past, it was very refreshing to meet helpful and knowledgeable engineers. I would highly recommend The Boiler Installation Specialists, the work they performed was to a high standard and for a fantastic price. Henry, London
Henry Marlow14/03/2017
Great work, fast turn around and at very good price
Customer Service
Quality
Value
I have nothing else to say but thank you to your company and team for the installation of my new boiler which was completed on the agreed day. After being very well attended to by Nina who was very knowledgeable and professional, I received a comprehensive quote, clear and detailed and when discussing it with Nina all points were addressed and resolved. The engineer Jordon who installed the new boiler, filter and pump was excellent friendly, well trained and worked not stop to get the job done at which point he stopped to eat something. Will be recommending this company to friends and anyone in need. Will for sure use them again. Thank you Robert Fletcher Fordham Colchester
RobertFletcher24/02/2017
Great service and value for money - highly recommend!
Customer Service
Quality
Value
I would highly recommend this company for several reasons. Firstly, I applied online for a quote and got a call back straight away. Nina was very informative and professional. She explained costs, finance options and services very clearly and gave me time to go away and think about what would suit me best. I did not feel under pressure as I have done with other companies. The whole application process was very quick and simple and Nina communicated with me on a regular basis. The engineer, Chris, was friendly and professional, on time and talked us through how to use our new boiler. I cannot fault his or Nina's customer service...it is 10/10! This company provide an excellent service - we have a top of the range boiler at a reasonable price.
Vanessa Silva24/02/2017
Excellent job at fair price
Customer Service
Quality
Value
My boiler broke down and was defunct and I called a number of people. Chris called back soon after I spoke to Nina, and quoted over the phone, recommending a replacement boiler model. Their quote was half the price of the government-appointed energy saving specialists with their so-called cashback for the old boiler. They fitted me in a week earlier than their schedule allowed, by moving some appointments I think. On the day Chris came and fitted the boiler and was very tidy, efficient and courteous. He did a very neat job and recommended I have my pump moved too which Jordan came and did a little later for me. I still have a lot of air in the system but they warned me it could take a week or two to clear as my pipework is a bit of a mish-mash from previous plumbing by others. I couldn't recommend them highly enough - pleasant, friendly , careful, tidy, and a nice neat job all done earlier than I thought could be done and completed in less than a day. Top people and I will undoubtedly be using them for servicing and any future requirements. If you're in their area, use them - you won't be disappointed.
Which? Trusted Traders Consumer15/02/2017
Really Great!
Customer Service
Quality
Value
Having to replace a defunct boiler is not a thing I considered would really feel value for money, the expense vs (a boiler)? Definitely more a pain than anything. However, not only did Chris and his team do a fabulous job but any box the consumer wants to tick from value to clearing up - they ticked in spades. To add to that woke up this morning to a feeling of being gently toasted, got under a hot shower and genuinely think this work was worth every penny. Regards Dot
2011-07-25 22:00:42.29720/01/2017
The trader replied (on 20/01/2017)
Dear Dot. Many thanks for your wonderful review on using The Boiler Installation Specialists Ltd to fit your new boiler. We look forward seeing you again next year for your annual service. Many thanks Nina and the team at TBIS Ltd
Removed back boiler unit - installed new combi
Customer Service
Quality
Value
I have been left so impressed with this firm from dealing with Nina in their office to having our new combination boiler installed and the commitment and reassurance my wife and I received throughout the whole process has been superb. I can not remember last time I dealt with a company who puts so much effort into customer service and delivering exceptional quality to their customers. The engineers arrived early in the morning and worked solidly through the day without fail. They made good where necessary and were very tidy and cleared up after installation was complete leaving us with no mess. They explained how all new controls works as we had the HIVE controls setup and installed too which they made so easy to use even tho we are in our 60's. I will for sure recommend to both family and friends and only use TBIS going forward for any work needed to be done. 5 stars!
MrJP196419/03/2016
Back boiler unit upgrade to wall hung boiler
Customer Service
Quality
Value
I was recommended by a friend to get in touch with this firm after they had installed a boiler at his property.From initial contact through their website I received a response within the hour from their office and a appointment was booked for the same afternoon. Estimate was received the same evening and I was already very impressed with their customer service. Engineers arrived on time as agreed and removed our very old back boiler unit and where there was a hole left where the back boiler unit was removed the engineers plastered the wall to a smooth finish and then put a radiator in place of where the back boiler unit gas fire was. The flue was terminated through the roof as our airing cupboard was situated in the middle of the house and not on a outside wall. As we had a really old heating system we had to have all of our controls upgraded and now we have a A-rated high efficiency Worcester Bosch boiler which they gave a extended 7 year warranty on. I could not fail this firm and how non stop their 2 engineers were working throughout the day with minimal disruption and kept myself and my wife informed at all times of what they were doing and why. We also had a follow up call the following day from the office to ensure we knew how to work our new controls and heating systems. 10/10
EScott986511/02/2016
New Boiler
Customer Service
Quality
Value
Boiler installed on time and over the Christmas period too. They were professional and went out of their way. Kept us at ease showing good communication and reassurance once leaving the site.
Jordan, Essex19/12/2015
The trader replied (on 23/07/2015)
Thank you Jordan!
I would have no hesitation in recommending TBIS.
Customer Service
Quality
Value
“I found TBIS team to be very friendly, courteous, informative, and very professional throughout job to completion - making sure they cleared and tidied up as they went. I am very happy with my new Combi boiler. I would have no hesitation in recommending TBIS to friends and family. Excellent service.”
TLCE112306/11/2015
Excellent !!
Customer Service
Quality
Value
“Excellent workmanship, very clean and tidy. Nothing was too much trouble including moving furniture. Also very accommodating with regards to extra requests i.E. Fitting additional pipe work and radiator. Chris and his guys were very polite, trustworthy and extremely hardworking. The job was started and completed on time and we would not hesitate to recommend this company. First Class Job.”
Jenkins06/11/2015
New installation of a Vaillant boiler.
Customer Service
Quality
Value
“When I first phoned and spoke to Nina who was very friendly, kept me informed and up to date throughout. Chris who installed my boiler was very professional, efficient, and friendly, who quoted a price when first surveyed the job and kept to the quote. Chris also fixed a leaking water pipe for me not connected to the job, for no extra charge. Excellent company I highly recommend.”
Sim992206/11/2015
boiler installation
Customer Service
Quality
Value
efficient, friendly and kept to estimated price.
redeemer23/10/2015
Boiler
Customer Service
Quality
Value
Quick and efficient service, extremely helpful and great communication. Chris and his team couldn't have been more helpful and as a result we have a lovely warm house and know that the job was done thoroughly. We would hesitate to recommend him to others!
stuman11/10/2015
hot water boiler replacment
Customer Service
Quality
Value
From start to finish job was explained and carried out in a courteous neat tidy fashion. Estimate for job spot on , and work done to a high standard by Chris and his co-worker Gordon, and finished ahead of schedule. Would recommend this company highly.
2011-01-31 13:35:24.86721/08/2015
Removal of back boiler unit
Customer Service
Quality
Value
The boiler installation specialists removed my back boiler unit. We had a new boiler fitted in the airing cupboard as we were much limited to where we could have it. Although the airing cupboard was not on a outside wall this wasn't a problem as the flue went up through the ceiling into the loft and out of the roof. What a fantastic job you guys made of this as I didn't think this way would have been possible after having several other firms quoting. I would recommend this company to anybody looking to have a new boiler or central heating system fitted.
Mrs Balkwill24/07/2015
Superb Conventional to combi conversion
Customer Service
Quality
Value
We were very very stuck as we live in a terraced house so engineer advised to put boiler in the loft with a vertices flue through the roof. I had a floor standing boiler taken out the kitchen which means I have now gained all that extra space and all redundant pipe work was removed from the kitchen - we have now a fridge freezer where our old boiler used to be. Great work and very pleased customer!!
Sullivan, Herts 23/07/2015
None operational boiler
Customer Service
Quality
Value
The boiler installation specialists was recommended to me when I had been let down by someone else, he rectified the problem, and took all the stress out of the situation. Our boiler is on last legs now anyway so will use them when I am in a position to have it replaced.
Crishnapatel22/07/2015
The trader replied (on 23/07/2015)
Dear Mrs Patel. Happy to hear our engineer attended yesterday and resolved all your issues with your central heating. Just get in touch when you are ready to have your new boiler installed as we are doing great special offers at the moment. Regards The Boiler Installation Specialists
New boiler excellent job
Customer Service
Quality
Value
I would highly recommend The Boiler Installation Specialists. In addition to installing my new boiler, they also sourced the best model for my requirements. My boiler has been working perfectly since installation and I will be using them to service my boiler in the future.
Dee196822/07/2015
The trader replied (on 23/07/2015)
Dear Dianne. Thank you for your kind words. Let us know when you need a service carried out. Regards The Boiler Installation Specialists
Installation of new central heating system
Customer Service
Quality
Value
Engineers arrived early in the morning and worked non stop all day till job was finished. Kept both myself and my wife informed of what they were doing and got on with their job out of our way. Pipework and boiler installation was installed neatly and to a very high standard will definitely recommend to friends and neighbours. First class service.
SmithD22/07/2015
The trader replied (on 23/07/2015)
Mr Smith. Many thanks for all your kind words. We are really pleased to hear you will be recommending us to friends and family, if we can assist any further just let us know. Regards The Boiler Installation Specialists
Excellent From Start to Finish
Customer Service
Quality
Value
Chris and his team recently replaced our old boiler for a new one. From the initial consultation, I felt reassured that I could trust Chris's judgement and professionalism, he gave us options to choose from and advice on the best efficiency we would achieve. The work itself was brilliant, they arrived on time as promised and were considerate of our property, ensuring we were consulted and informed of the works taking place. Exceptionally clean and tidy and went the extra mile to ensure we had a practical new location for the boiler and it's controls, working late into the evening to complete in one day, as promised. Highly recommend for professional, courteous service. Huge Thanks to the team
JacquiC22/06/2015
The trader replied (on 23/07/2015)
Dear Jacqui. Thank you for all your kind words and that you're pleased with your new boiler. We pride ourself on customer satisfaction. Regards The Boiler Installation Specialists
Recommended
Customer Service
Quality
Value
Clean and tidy worker - used for a boiler service and repair. Polite and a good all round service given by Chris.
Robert, Essex19/01/2015
The trader replied (on 23/07/2015)
Dear Robert. Thank you for your review. Many thanks
New boiler
Customer Service
Quality
Value
Good communication, easy to work with throughout, polite, clean and tidy workers with excellent attention to detail. Have recommended to friends and family,
Babara, Essex01/10/2014
The trader replied (on 23/07/2015)
Dear Barbara. Thank you for your kind words. Regards The Boiler Installation Specialists
Which? Local Review
Customer Service
Quality
Value
We required replacement of a central heating boiler in the kitchen. CW heating had recently done work for a neighbour, we looked at this and asked CW Heating to look at our job and to quote. They came without delay and impressed with their assessment and proposed solution of installation in airing cupboard without taking up carpets. Rapid phone quote was confirmed same day by Email, Start date of 2 weeks, and 3days to complete were kept to. We are delighted with the work professionally and carefully carried out by Chris Warren and his assistant John. I can thoroughly recommend them.
critic30/11/2009
The trader replied (on 23/07/2015)
Thank you for your review and your kind words. Regards The Boiler Installation Specialists