Endorsed by Which?

Allstar Systems (Norwich) LTD

5.0

116 Reviews

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

Organisations and Awards

Aug 2019

About

Allstar Systems are trusted plumbing and heating specialists based in Norwich, serving homeowners and businesses across Norfolk. Our qualified engineers provide boiler installation, boiler servicing, boiler repairs, central heating upgrades, general plumbing services and luxury bathroom installations.

We are Gas Safe registered, OFTEC registered, Worcester Bosch accredited installers, Norfolk Trusted Traders and Which? Trusted Traders. Therefore, customers can choose Allstar Systems with confidence for safe, professional and carefully managed plumbing and heating work.

From emergency boiler repairs and heating breakdowns to planned boiler upgrades, plumbing maintenance and bathroom projects, we focus on honest advice, tidy workmanship, reliable aftercare and long-term customer care.

What we do

  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
    • Water softener installation and maintenance
  • Heating contractors

    • Central heating systems (installation and servicing)
    • Oil fired heating equipment
  • Boiler, central heating and gas engineers

    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Radiators and central heating
    • Gas safety testing and inspection

Customer reviews

Why you can trust these reviews

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

5.0
116 reviews
Customer Service
5.0
Quality
5.0
Value
4.9
Sort by
Professional and Competent
Customer Service
Quality
Value
I needed an urgent solution to a leaking hot water cylinder in an elderly relatives flat. Allstar Systems provided sound advice and options, provided competitive estimates, carried out the work quickly, competently and professionally. Couldn't have asked for better service. Highly recommended.
S, Norfolk Posted on 11/11/2017 , work completed 11/11/2017
The trader replied (on 24/04/2026)
Thank you for your kind and detailed feedback. We are very pleased we could assist quickly with the leaking hot water cylinder in your relative’s flat. Firstly, we understand how urgent hot water cylinder issues can be, especially in vulnerable households. Therefore, it is great to hear that our team provided clear advice, practical options, and competitive estimates. Additionally, we are glad the work was completed quickly, competently, and to a professional standard. Our engineers always aim to deliver reliable plumbing and heating solutions, particularly in emergency situations involving hot water systems. Moreover, we focus on clear communication so customers can make informed decisions with confidence. Finally, we really appreciate your recommendation and trust in Allstar Systems. If you ever need support with heating repairs, boiler services, or plumbing issues in the future, we are always here to help.
Excellent Service
Customer Service
Quality
Value
Arrived on time. Didn’t stop working. Explained what was required after power-flush of complete system. Did not charge labour for fitting of new pump. Did not leave property until all radiators were working properly and left property spotless. I would have no hesitation in recommending Allstar
Allstar Posted on 15/10/2017 , work completed 15/10/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear that you were impressed with the punctual arrival and the strong work ethic demonstrated throughout the power flush of your heating system. It is especially good to know that our engineer worked continuously until the job was fully completed to a high standard. We also appreciate your comments regarding the clear explanation of the work required after the system flush. Clear communication is a key part of our central heating and plumbing service, so it is great to hear this made a positive difference. Additionally, we are glad you were happy with the installation of the new pump and that no labour charge was applied for this part of the work. We always aim to be fair and transparent when carrying out heating repairs and upgrades. Furthermore, it is excellent to hear that all radiators were left working properly before completion and that your property was left clean and tidy. Attention to detail is something we take real pride in across all plumbing and heating services. Finally, thank you for your recommendation. We truly appreciate your support and are always here if you need help with your boiler, central heating system, or future plumbing work.
Professional
Customer Service
Quality
Value
Finally a company you can trust, not a bunch of cowboys. From start to finish 100% professional. Would only use this company in the future.
Daniel, Norfolk Posted on 10/10/2017 , work completed 10/10/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear that you found our service fully professional from start to finish. From the initial contact through to completion, we always aim to deliver reliable plumbing and heating services with clear communication and consistent workmanship. Furthermore, it is great to know you felt confident in the service provided. Trust is especially important when dealing with boiler installation, central heating repairs, and general plumbing work, so your comments mean a great deal. As a result, we are very grateful for your intention to use Allstar Systems again in the future. We look forward to supporting you whenever you need assistance with heating engineers, boiler servicing, or plumbing solutions.
My Review
Customer Service
Quality
Value
Excellent service, 100% professional.
Vincent, Norfolk Posted on 26/09/2017 , work completed 26/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear you were happy with the service and found our team 100% professional. We always aim to deliver high-quality plumbing and heating services with clear communication, reliable workmanship, and a strong focus on customer satisfaction. Moreover, it is great to know this standard was reflected in your experience. We truly appreciate you taking the time to leave your review. If you ever need support in the future with boiler servicing, central heating repairs, or general plumbing work, we will be happy to help.
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear you were happy with the service and found our team 100% professional. We always aim to deliver high-quality plumbing and heating services with clear communication, reliable workmanship, and a strong focus on customer satisfaction. Moreover, it is great to know this standard was reflected in your experience. We truly appreciate you taking the time to leave your review. If you ever need support in the future with boiler servicing, central heating repairs, or general plumbing work, we will be happy to help.
Professional and knowledgeable
Customer Service
Quality
Value
Good communication and clear explanation of issue and solution. Very tidy and polite.
Jade, Norfolk Posted on 21/09/2017 , work completed 21/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear that you were happy with the communication and the clear explanation of both the issue and the solution. We always aim to make plumbing and heating work easy to understand, so customers can feel confident in the decisions being made. Furthermore, it is great to know you found our team tidy and polite throughout the visit. Respecting your home and maintaining a clean working area is an important part of our service, especially during boiler repairs, central heating work, and general plumbing jobs. We really appreciate you taking the time to leave your review. If you need any further help in the future, we are always here to assist.
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear that you were happy with the communication and the clear explanation of both the issue and the solution. We always aim to make plumbing and heating work easy to understand, so customers can feel confident in the decisions being made. Furthermore, it is great to know you found our team tidy and polite throughout the visit. Respecting your home and maintaining a clean working area is an important part of our service, especially during boiler repairs, central heating work, and general plumbing jobs. We really appreciate you taking the time to leave your review. If you need any further help in the future, we are always here to assist.
My review
Customer Service
Quality
Value
First class!
Peter, Norfolk Posted on 19/09/2017 , work completed 19/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased you were so happy with our plumbing and heating services and found everything first class. It is great to know our professional heating engineers delivered a smooth and reliable service from start to finish. We always aim to provide high-quality emergency plumbing repairs, boiler and heating solutions, and general plumbing work with clear communication and dependable workmanship. Furthermore, we are glad the experience met your expectations and gave you confidence in our service. Thank you again for your support and recommendation. We are always here for any future boiler servicing, central heating repairs, or plumbing needs you may have.
Emergency plumbing job, completed professionally.
Customer Service
Quality
Value
We needed a shower and toilet fixed within a narrow time window, as we were about to go on holiday. Allstar responded quickly, discussed the options regarding parts and dealt with the whole problem in a calm, professional, and friendly manner.
James, Norfolk Posted on 19/09/2017 , work completed 19/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased we could help quickly with the shower and toilet repairs, especially within your tight pre-holiday time window. It is always important to us to respond promptly when plumbing issues arise, particularly when customers are about to travel. Furthermore, we are glad you found our team able to clearly discuss the available parts options and provide practical solutions. Clear communication and honest guidance are key parts of our plumbing and heating service, so it is great to hear this made the process easier for you. In addition, it is good to know the work was handled in a calm, professional, and friendly manner from start to finish. We always aim to keep situations like this as stress-free as possible. Finally, thank you for your recommendation. We really appreciate your support and are here whenever you need help with plumbing repairs, heating systems, or urgent household issues in the future.
Excellent, efficient work.
Customer Service
Quality
Value
William and his colleague advised me on removing an old gas fire and sealing off chimney. First-class job was done. Very tidy and efficient, kept advised of arrival time. Very pleased with work done, I would use again.
David, Norfolk Posted on 11/09/2017 , work completed 11/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear that William and the team provided clear advice and carried out the removal of your old gas fire and chimney sealing to a high standard. It is great to know the work was completed as a first-class heating and gas service. We always aim to deliver professional gas fire removal, chimney sealing, and wider heating system work with a strong focus on safety, efficiency, and tidy workmanship. Therefore, it is good to hear the team remained efficient throughout and kept you updated on arrival times. Furthermore, we are glad you were very happy with the finished result and overall service experience. Thank you again for your recommendation. We really appreciate your support and would be happy to help with any future plumbing, boiler, or heating system work.
Brilliant
Customer Service
Quality
Value
Very helpful and professional, fantastic service from William Smith. Would 100% recommend him. Great fast service and not pushy. Very friendly.
Alice, Norfolk Posted on 09/09/2017 , work completed 09/09/2017
The trader replied (on 25/04/2026)
Thank you for your feedback. We are really pleased to hear you were happy with William Smith’s professional and friendly service. It is great to know he provided fast and reliable plumbing and heating support when you needed it. Furthermore, we are glad the experience felt helpful without any pressure. We always aim to offer honest advice, clear options, and non-pushy service for all boiler and plumbing work. In addition, it is excellent to hear the communication and overall service met your expectations from start to finish. Thank you again for your recommendation. We really appreciate your support and are always here for future boiler servicing, central heating repairs, or general plumbing services.
Met all my requirements
Customer Service
Quality
Value
You, Allstar system's did meet all my requirements and expectations. I felt safe that I was in good and trusted hands, which means a lot. A genuine team and people, left my place spotless and after service, 2nd to none.
Bradley, Norfolk Posted on 08/09/2017 , work completed 08/09/2017
Outstanding service
Customer Service
Quality
Value
I'm really pleased with the job that William carried out in my property. He was polite and clean when working with an attention to detail. Will replaced all of my radiators in my house as advised and increased the size of my boiler. He also installed a new hot water tank and installed a shower pump to increase pressure to showers and bath. I would use Allstar systems again and recommend to others.
Buppha Posted on 07/09/2017 , work completed 07/09/2017
Excellent
Customer Service
Quality
Value
Power flushed heating system and installed thermostatic radiator valves.
Colin, Norfolk Posted on 01/09/2017 , work completed 01/09/2017
Amazing Job
Customer Service
Quality
Value
So pleased with the work we received, great professional attitude. Will definitely be using them again.
Sara, Norfolk Posted on 31/08/2017 , work completed 31/08/2017
Very pleased
Customer Service
Quality
Value
Call out time excellent and service outstanding. Polite and courteous. Very very pleased.
Ann, Norfolk Posted on 29/08/2017 , work completed 29/08/2017
Very professional and very prompt
Customer Service
Quality
Value
Finished job promptly. Very clean and tidy workers and also very polite.
Sara, Norfolk Posted on 24/08/2017 , work completed 24/08/2017
Excellent Service
Customer Service
Quality
Value
Prompt and efficient service. Would definitely use again.
Ann, Norfolk Posted on 22/08/2017 , work completed 22/08/2017
Great job
Customer Service
Quality
Value
The team did a great professional job. Friendly, polite and courteous. I am really pleased with the work. I can't believe how tidy they are, no mess on completion. I would recommend. Thank you for all your hard work.
Kirsty, Norfolk Posted on 19/08/2017 , work completed 19/08/2017
Highly Recommended
Customer Service
Quality
Value
Excellent installation. Great service with helpful advice.
Jay, Norfolk Posted on 18/08/2017 , work completed 18/08/2017
professional, Friendly and Quick
Customer Service
Quality
Value
Thanks to Will and his colleague for fixing our boiler. They were professional, helpful and completed the job quickly with no disruption. Will was also great at keeping in touch to book our visit and arrived when he said he would. He was also flexible and accommodating to our availability. Highly recommended.
Lois, Norfolk Posted on 18/08/2017 , work completed 18/08/2017
Excellent job, very professional
Customer Service
Quality
Value
William fitted a new boiler and removed the old one professionally and efficiently. Will definitely use again.
Colin, Norfolk Posted on 12/08/2017 , work completed 12/08/2017
Boiler Plume Extension
Customer Service
Quality
Value
Found Allstar systems via which trusted trader, initial phone call satisfied me that William understood the specific plume extension issues with our boiler. He came when stated, did the work in the estimated time, cleared up and checked as per his quotation. Will use Allstar again in the future.
Martin, Norfolk Posted on 02/08/2017 , work completed 02/08/2017
Job Well Done
Customer Service
Quality
Value
We had a total bathroom refit. Allstar has also done a new boiler system for us and refit of downstairs cloakroom. All work was done to what we wanted. Very clean, tidy workers, nothing to much trouble. We often recommend these boys. William made sure we had quality fixture and fittings and this shows in the final furnish. Well done boys.
Karen, Norfolk Posted on 03/07/2017 , work completed 03/07/2017
Excellent. Highly recommended
Customer Service
Quality
Value
Allstar Systems provide a really excellent service. Dependable and reliable and the standard of work is sound and thorough. We have used Allstar Systems on several occasions, one very big job was replacing our old boiler and Will Smith gave honest and helpful advice and the fitting was carried out with minimum disruption. Very tidy and polite. I can't recommend this company highly enough.
S. Kielty Posted on 21/06/2017 , work completed 21/06/2017
Great Service
Customer Service
Quality
Value
Great job, very professional, would highly recommend.
Emily, Norfolk Posted on 10/06/2017 , work completed 10/06/2017
Exceptional Professionalism
Customer Service
Quality
Value
I was very impressed when Ashley came to service my boiler. Showed up on time, done a very good job and very friendly. Will definitely use again.
Arin, Norfolk Posted on 09/06/2017 , work completed 09/06/2017