Endorsed by Which?

Assured Heating

5.0

18 Reviews

Opening Hours
Today - 08:00–20:00
  • Monday 08:00–20:00
  • Tuesday 08:00–20:00
  • Wednesday 08:00–20:00
  • Thursday 08:00–20:00
  • Friday 08:00–20:00
  • Saturday 08:00–20:00
  • Sunday 08:00–20:00

About

Assured Heating is owned and operated by Clark Pheely who has over 24 years experience in the heating industry. We specialise in installing gas, oil and electric boilers and heating systems.

We operate within a 100 mile radius of the Glasgow area and will provide you with a no obligation quotation for a system that suits your budget.

His wife Julia handles all of the administration and initial enquiries and would be happy to discuss any requirements you may have from 8 till 8 every day.

We do not use salesmen, only fully qualified tradesmen are used when advising, sizing and pricing all jobs.

What we do

  • Heating contractors

    • Automated Heating
    • Central heating systems (installation and servicing)
    • Immersion Heaters
    • Oil fired heating equipment
  • Gas installers

  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Gas emergencies
    • Gas safety testing and inspection
    • Immersion Heaters
    • Power flushing
    • Radiators and central heating
    • Underfloor heating
  • Plumbers

    • Unvented cylinder installation and maintenance
  • More Services

    • electric boilers
    • oil boilers and repairs
    • storage heaters

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

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100% of the reviews we publish have been through our stringent moderation process.

5.0
18 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
HRM 25/19 oil combi boiler
Customer Service
Quality
Value
Our boiler stopped and Clark replaced the expansion vessel on 14th June. However, he then discovered that the braided link hose was leaking. He returned and fitted a new part on 19th June. The boiler then started but only worked on central heating as the diverter valve was sticking. Clark knew that we needed hot water to shower and he returned (20 miles each way) with the part when we were available at 6.30pm the following night. Our boiler is now functioning properly again. He did this politely, understood our boiler’s parts well and worked efficiently at a reasonable cost.
Customer in South Lanarkshire Posted on 23/06/2023 , work completed 20/06/2023
5 Star Service
Customer Service
Quality
Value
My father's heating broke down and after the boiler manufacturer sent an engineer it was clear that the issue was not with the boiler but with an external pump which wasn't covered by the boiler warranty. I looked at Which Trusted Reviews and decided to give Assured Heating a call. Clark phoned me straight back and I explained what the issue was. He gave me an estimate of the cost and we agreed that he would come to my Father's house on Monday 01 April at 9.00 He turned up bang on time, completed the job quickly, charged me exactly what the estimate was and was really friendly throughout the visit. I know that it can sometimes be difficult to reliable people but for me this was a job that was really well done by a pro. I've kept Clark's number in my phone and would not hesitate to call him again in the future. Thanks Kenneth Park
Customer in East Renfrewshire Posted on 01/04/2019 , work completed 01/04/2019
New Boiler & Radiators
Customer Service
Quality
Value
I had new central heating boiler and radiators fitted by Clark and his young apprentice on 24 January 2017. Chose Assured Heating because of favourable reviews on Which? Recommended Traders. Could not be happier with standard of work and service. I received estimate on the same night that Clark called to view the job. Price was competitive and fair. I spoke to Clark on two or three occasions before he did the job. He contacted me when he said that he would. He appeared on time and completed the job in one day. Very good, clean worker. I would strongly recommend this trader. Ian (Carluke)
Which? Trusted Traders Consumer Posted on 28/01/2017 , work completed 28/01/2017
First class service
Customer Service
Quality
Value
Clark came out on Hogmanay to look at boiler which had packed in 4 days previously. He knew exactly what was the problem and got it going. However he found that we needed another part to complete the job and very kindly came back out to us at 7pm on Hogmanay to fit the part! Can't recommend him enough, excellent work, very competitive prices and knows his job ! Boiler working better than its ever done! Thank you so much clark
Sheena Posted on 09/01/2017 , work completed 09/01/2017
Fitting of New Thermaflow Boiler
Customer Service
Quality
Value
This man is a genius - he diagnosed the problem with my daughters central heating boiler in minutes. After spending hundreds of pounds with a "local" plumber/heating engineer trying to sort the problem but failing, I decided to do more research for someone who had expertise in wet central heating systems. I found Clark of Assured Heating and called him. He surveyed my daughters flat two days later and installed a brand new boiler three days after that. In short, within a week he had sorted the problem at a very competitive price. My daughter said he was fantastic - even taking time to go over all the programs/settings with her. I cannot recommend him highly enough - he and his colleague were prompt, clean, tidy in fact all that you could wish for in a professional tradesperson. This service is 5* plus. Thanks Clark from Jen.
JenDempster Posted on 28/04/2016 , work completed 28/04/2016
Which? Local Review
Customer Service
Quality
Value
My friend recently moved into an all electric flat which had an appalling heating system (wet electric central heating and mains pressure hot water storage) which had been badly installed and was proving problematical. Clerk responded to her call for assistance and quickly assessed the options of repair or replacement. After patiently discussing the pros and cons of her options, and without any pressure from Clark, my friend opted to install a new electric combination boiler system (Thermaflow) to supply hot water and wet central heating on demand 24x7 but using Scottish Powers Economy 2000 tariff. The all in price quoted was extremely competitive and the job was carried out cleanly and efficiently on the date and time agreed. Clark's skill and knowledge are the best I have ever experience. I was personally present during the time he carried out the work and would have no hesitation in recommending him. I have put him on my contact list for any heating needs I may have in future. The quality of work and price were both excellent and my friend is extremely pleased with the outcome. Although, technically, I wasn't the paying customer I was involved with the work from start to finish and my friend has fully endorsed this review.
JBStewart Posted on 22/04/2016 , work completed 22/04/2016
Which? Local Review
Customer Service
Quality
Value
I used Clark for the1st time, after seeing the number of recomends he had, he deserves them,arrived right on time ,with trainee and carried out a thorough, clean, service,keeping me informed with all he was doing.I would recommend him without hesitation
alexwilson Posted on 06/10/2014 , work completed 06/10/2014
Prompt & professional
Customer Service
Quality
Value
New boiler and hot water tank fitted. Three previous quotes, for same job. This one was the best by far. Great job. Clean and tidy. Great time keeping
Ailsa, Lanarkshire Posted on 19/09/2014 , work completed 19/09/2014
Which? Local Review
Customer Service
Quality
Value
Had a VERY satisfactory experience with Clark. He had to deal with a 20 + year old system. Work was done in two days by him and his apprentice with time to spare.Keen to help show how to work the new control system...which I needed ! Even came to my aid on Xmas day when my son and family ( from Thailand ) were finding it a bit cold for them ! Full of good humour and stories .Very professional. He called again after month to check how things were going. Have recommended him to a friend. He was much less than other quotes too.
sirrom hamilton Posted on 22/01/2014 , work completed 22/01/2014
Which? Local Review
Customer Service
Quality
Value
I used Which Local to find Clark Pheely (Assured Heating) due to all the good reviews - they were spot on. The entire central heating system had to be replaced in the family home, but being overseas I needed both a reliable boiler and engineer. Clark chose the Worcester Bosch 38CDI for the job (good Which reviews). He was patient and friendly in answering all my questions, reliable and efficient in carrying out the job within the budget and time quoted, and very professional with his advice and choice of materials. Knowing how much I relied on reviews from Which members, I have left my comments for 8 months, and there have been no problems with the system in that time. I know I can rely on Clark to continue provide excellent service.
Mr Davidson Posted on 13/11/2013 , work completed 13/11/2013
Which? Local Review
Customer Service
Quality
Value
Assured Heating installed a Worcester combi boiler to replace an existing heat-only system. The job was done in a single day with minimal disruption. The boiler is working very well and provides almost instant heat and hot-water. Clark has a no-nonsense approach and does not do the hard sell, he does not need to. The quote from Assured Heating was significantly less than the equivalent quote from a major utility company. The installation was done very professionally and overall I am very pleased with Assured Heating.
pauljohnston Posted on 12/11/2013 , work completed 12/11/2013
Which? Local Review
Customer Service
Quality
Value
I chose Clark because of his reviews on this site and the worcester boiler for a similar reason .Four months after Clark's installation I have no regrets over these decisions.Clark knows his trade and gets on with the work without any fuss and will take the time to answer any questions you may have. Thoroughly recommended.
alexan fowler Posted on 20/07/2013 , work completed 20/07/2013
Which? Local Review
Customer Service
Quality
Value
Clark did an excellent job in replacing my 33 year old boiler, with the latest condensing boiler, which took 2 days to complete because of the amount of work involved. Very professional, reasonably priced and friendly manner.
St4y1m0r3 Posted on 29/09/2012 , work completed 29/09/2012
Which? Local Review
Customer Service
Quality
Value
Clark has always been helpful from discussion on the most economic boiler for the house, to being easy to book for the service of the system. He is friendly, tidy and honest in his approach to working. He appears thorough and knowledgeable about his profession and it is easy to recommend his services. He has been reliable for the past 3 years and I have never had any difficulties with the heating or contacting him.
Which? Trusted Traders Consumer Posted on 05/04/2012 , work completed 05/04/2012
Which? Local Review
Customer Service
Quality
Value
I used Clark because of the previous good reviews and was fully satisfied with his work. He obviously cared about doing a good job for the best price and was very keen to let me know what was required and why. The problem was tricky because the fault was intermittent but he tackled it methodically and saught information from the maker and the problem is now fiexed. I would certainly use this company again.
PeeJayL Posted on 09/03/2012 , work completed 09/03/2012
Which? Local Review
Customer Service
Quality
Value
Contractor fitted Worcester Which? Best Buy recommended boiler. Old boiler removed and new one installed in one day. No mess. No fuss. Work done on time and on budget. This review posted few days after installation so too soon to confirm any problems but do not expect any. Reliable, professional, and competitively priced. Was wary of awarding top markings thinking that three reviews all with top markings looks a bit suspicious. But it would be unfair of me to deduct points for this reason alone. So having given the matter some thought I awarded 5/5 as it is fair and merited.
Forgie Posted on 19/09/2011 , work completed 19/09/2011
Which? Local Review
Customer Service
Quality
Value
Replacement of central heating boiler - this firm gave sound advice and carried out the work in a timely hassle free and competent manner. The staff were very friendly and helpful. I would recommend without reservation.
Outlaw Pete Posted on 22/07/2011 , work completed 22/07/2011
Which? Local Review
Customer Service
Quality
Value
Central Heating upgrade - Installation of a new (condensing) boiler and new radiators. I have no hesitation in recommending this company. All aspects of the work, from initial upgrade design to installation, was carried out on time, in a most competent, clean and friendly manner.
decibel48 Posted on 29/11/2007 , work completed 29/11/2007