Allstar Systems Norwich Ltd
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Allstar Systems Norwich Ltd
Allstar Systems Plumbing & Heating is a Norwich-based provider of professional plumbing and heating services operating throughout Norfolk for domestic and commercial customers. We place strong emphasis on safe practices, dependable service and long-term efficiency in every project we undertake. Our services encompass a wide range of heating, boiler and plumbing requirements.

We work with homeowners, landlords, businesses and commercial property managers, offering boiler installation, servicing and repair work, emergency heating assistance, central heating upgrades, power flushing, hot water system maintenance, radiator installation, underfloor heating, bathroom plumbing and general maintenance services. Commercial clients benefit from boiler servicing and replacement, gas and LPG systems, temporary boiler hire and planned maintenance programmes. Our engineers provide clear, practical advice and ensure all work is carried out with professionalism and attention to detail.
Served areas
  • Norwich, Norfolk, Aylsham, Attleborough, Blakeney, Brundall, Burnham Market, Coltishall, Costessey, Cromer, Dereham, Diss, Downham Market, Fakenham, Great Yarmouth, Hethersett, Holt, Horning, Horsford, Hunstanton, King’s Lynn, Long Stratton, North Walsham, Reepham, Sheringham, Swaffham, Thetford, Wymondham
Details
  • Year established: 2011
  • Employees: 4
  • Licensed
  • Insured
Highlights and features
  • Trusted Norwich-based plumbing and heating company
  • Serving domestic and commercial customers across Norfolk
  • Boiler installation, servicing and repair specialists
  • Emergency plumbing and heating support available
  • Gas, oil, LPG and electric heating expertise
  • Commercial boiler servicing and replacement
  • Power flushing and heating system maintenance
  • Central heating upgrades and radiator work
  • Hot water systems and underfloor heating support
  • Bathroom plumbing and installation services
  • Qualified, experienced plumbing and heating engineers
  • Gas Safe and OFTEC registered services
  • Worcester Bosch Accredited Installers
  • Norfolk Trading Standards Approved / Norfolk Trusted Trader
  • Which? Trusted Traders approved
  • Clear advice with no-pressure recommendations
  • Reliable workmanship focused on long-term performance
  • Local knowledge of Norwich and Norfolk properties
  • Support for homes, landlords, businesses and commercial sites
  • Professional service from routine maintenance to complex projects
Associations and certifications
  • Gas Safe Registered
  • OFTEC Registered
  • Worcester Bosch Accredited Installers
  • Which? Trusted Traders
  • Norfolk Trusted Trader / Norfolk Trading Standards Approved
  • TrustMark Endorsed
  • Anglian Water Approved Plumbers
  • CIPHE member
  • CHAS Elite Accredited
  • SafeContractor Approved
  • G3 Unvented Hot Water Systems qualified
  • NVQ Level 2 & 3 qualified plumbing and heating engineers
Payment methods
  • Cash
  • Mobile payments
  • Bank transfers
Services
Boiler Installation Our experienced engineers carry out boiler installations and replacements for a wide variety of properties. We work with gas, oil, and LPG boilers and tailor every installation to the needs of the building and occupants. By assessing your existing system, we can recommend an efficient and practical replacement. A new boiler may also help reduce ongoing repair concerns and improve comfort.
Boiler Repair At Allstar Systems, we carry out boiler repairs for customers experiencing faults with heating and hot water systems. Our engineers diagnose issues carefully to identify the most suitable repair solution for the property. We work on gas, oil and LPG boilers in both residential and commercial settings. Support is available for leaks, pressure issues, faulty controls and circulation problems. We are committed to providing reliable boiler repairs with a professional approach.
Power Flushing At Allstar Systems, we provide trusted power flushing services for heating systems affected by sludge and circulation faults. Our engineers assess the heating system thoroughly before carrying out any flushing work to ensure it is appropriate for the property. The service can help resolve issues such as cold radiators, noisy boilers, and slow heating response times. We focus on improving efficiency and supporting reliable heating throughout the entire system.
Hot Water Systems Our hot water system services are focused on improving the efficiency and dependability of domestic hot water supplies. We repair common faults including thermostat failures, immersion heater issues, leaking cylinders, and poor water pressure. Before any work is undertaken, we assess the propertys requirements to determine the most suitable solution. From repairs to full installations, we provide professional support for long-term system performance.
Underfloor Heating Our underfloor heating services cover installations, repairs, upgrades, and maintenance for a variety of property types. We work with wet and electric heating systems, ensuring every installation is suited to the floor structure and heating demands of the space. We also resolve common faults including pressure issues, cold spots, and thermostat problems. Careful planning and assessment help us provide reliable heating performance.
Emergency Plumbing Our emergency plumbing service is available for urgent repairs across domestic and commercial properties. We understand the importance of acting quickly when plumbing issues arise, which is why we respond without delay. Whether dealing with leaks or burst pipes, we deliver effective repair solutions. Clients choose us for our dependable workmanship, professional standards, and trusted local reputation.
Bathroom Installation At Allstar Systems, we install luxury bathrooms that are tailored to the style and requirements of each home. Whether the project involves a feature wet room or a refined cloakroom, we approach every installation with care and precision. We use quality products from recognised bathroom manufacturers to achieve a premium result. Each completed bathroom is designed for reliable everyday use.
Commercial Boiler Servicing We carry out commercial boiler servicing for buildings that rely on dependable heating and hot water throughout daily operations. Our engineers assess the condition of the boiler and heating system, undertake safety inspections and identify maintenance requirements before they develop further. We service commercial gas, LPG and oil boilers, helping clients maintain efficient operation while supporting the longevity of their heating equipment.
Commercial Gas Services We provide commercial gas and LPG services for a wide range of business premises, including schools, healthcare facilities, offices, hospitality venues, and industrial sites. Our work includes installations, pipework, testing, purging, and safety inspections. We plan every project carefully to support safe operations and minimise disruption. Health and safety remains central throughout every stage of the works.
Reviews (30)
William Stovell
William Stovell
Apr 13, 2026
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I contacted Allstar for a quote to repalace 3 radiators. Will replied and quickly arrived to size up the job. He was polite, prompt and professional. The quote was good value. Will turned up promptly, with his team, and immediately began work. The quality of work was first class and caused minimal bother to our normal routine. I highly reccomend Allstar to anyone.
After a few months, we approached Allstar again for a heating system update, involving a boiler change and system update. We received great service. The team were punctual, polite, professional and took a great deal of pride in their work. We opted for an external boiler, which involved a good deal of pipe renewal. Despite miserable weather, they ensured that everything was to the highest standard and no corners were cut. Will made sure the system operated safely and correctly and I understood how to program the system and could spot any faults. Will, Ash, Bank and Geordie did an excellent job. They cleared up after themselves and we now have a beautiful new system. Many thanks to all.
Anya Hayward-Brown
Anya Hayward-Brown
Mar 06, 2026
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Ben was incredibly quick to respond, helpful and knowledgeable. He explained what had gone wrong clearly and fixed the issue the same day, despite it being a late call out. I would recommend Allstar to anyone!
Marcus Brooks
Marcus Brooks
Feb 05, 2026
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Excellent service provided by William
I'm very thankful for him to be able to fix my heating at such a quick response
Highly recommended and excellent and thorough service
5 stars all the way
Jon Frith
Jon Frith
Jan 26, 2026
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Will and the team responded very quickly to install our new boiler. We found Will to be very knowledgeable and the whole team were very hard working, polite and respectful. We will definitely be using Allstar Systems in the future. Thanks. Jon and Lou
William Wilson
William Wilson
Sep 25, 2025
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Will and Ash did a great job. Will arrived very quickly and pointed out several safety critical elements that hadn't been noticed by previous plumbers, he then prioritised sorting it. We really appreciated their skill in considering the whole heating and hot water system (not just one element). We now have a safe and working boiler, underfloor heating and hot water system and would recommend Allstar to anyone.
James Wall
James Wall
Sep 15, 2025
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I cannot recommend the services of the team enough. Will and Ash are extremely knowledgable, friendly and approachable. Clearly committed to their crafts the team responded quickly to our needs and were extremely pleased with the results. Having only fairly recently moved to the area, its great to have found our go to team for all things heating and plumbing. Will be using them for future projects and any issues without question.
Arthur
Arthur
May 19, 2025
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Another great service from all star plumbing had my washing machine move and up and run in in no time and even got me a out side tap sorted and give me really good a voice for the future new bathroom definitely will be use in them again thanks
Mn Baker
Mn Baker
Apr 04, 2025
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William came out on a Saturday when our boiler broke down. He worked for three hours to get the hot water working and recommended a new boiler. The whole system was cleaned and the boiler replaced in a single day the following week. The team worked so hard to make sure that we were not left without heating. I was not charged for the original call out. Very happy with the service, andvice and our new heating system. It has made an enormous difference!
Karl Blenk
Karl Blenk
Mar 15, 2025
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First class service when our old boiler broke down. Reliable, on time and exceedingly friendly. What looked like a substantial job to me was finished in under a day. All paperwork, registration and extended warranty came through exactly as promised.

I can highly recommend this company
Parvathy Mnair
Parvathy Mnair
Mar 11, 2025
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Last year we had an issue with our boiler, Installers couldn't sort it out and was costing too much money with the the repairs. That's when we found Allstar systems, and our boiler never had any issue since last year,. We have booked for the annual service again this year and the service was again much satisfying. Would definitely recommend to everyone.. Thank you Allstar
Annie Naylor-Clements
Annie Naylor-Clements
Jan 31, 2025
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Will came to service our old oil fired boiler and discovered that it had been fitted incorrectly and that the subsequent services (by other engineers) had resulted in incorrect parts being used, rendering our boiler unsafe. We decided that a new boiler was the way to go, being a Friday, time was tight but by midday Will had ordered the new boiler ready to install on Monday.

He and Ash worked hard in horrible weather to ensure the new boiler was fitted and running well. To say they have made a difference to our house is an understatement, our radiators are warmer, the water pressure has improved 10 fold and we are far more relaxed knowing that the boiler is safe. I'd happily recommend them to anyone in need of a heating engineer.
Jenny Mollan
Jenny Mollan
Jan 14, 2025
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We called William in to service our 17 year old boiler. On inspection Will pointed out several major problem areas and we concluded that it was not economical to.carry out the necessary repairs.
Our stars must have been in alignment that day: the replacement we had selected was in stock and with a bit of juggling and non-stop hard graft the new boiler was up and running just 27 hours later, with a beautiful array of orderly copper piping replacing the Heath Robinson arrangement that had gone before. Everything was left clean and tidy,, we're enjoying the greatly improved heating system, and last but not least, looking forward to significantly lower bills.
We took a punt on Will and it has been money well spent. Thank you!
Justine Hobbs
Justine Hobbs
Oct 12, 2024
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Really great service, very efficient and prompt, very happy with our new radiator and all other jobs such as removal of old gas heater and the plumbing that was sorted in the kitchen is fab. Would highly recommend. Thanks for the great work!
Saretta By The Sea
Saretta By The Sea
Sep 28, 2024
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Really impressed and reassured by Allstar Systems (Norwich) LTD.
We had a dangerous issue with our oil fired boiled and William came out as an emergency. He ensured the safety of our tenants and had a new boiler installed ASAP with no disruption to our guests. He also talked us through some basic procedures and was very quick to get back to us when needed.
Very reliable and have recommended to other landlords who prioritise safety.

Hopefully we won't need them to attend again. But if we do we know we'll be in safe hands.

Thank you!
Brett M.
Brett M.
Mar 10, 2024
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Allstar have done a boiler installation for us and a few boiler services. They've always been on time, polite and take the time to explain what's going on. Happy to recommend.
Alison Toon
Alison Toon
Mar 04, 2024
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William and team did a great job installing a ventless tank and replacing a ridiculously useless electric shower with a proper shower with plenty of water and heat. They worked non stop to get everything done. Went above and beyond to find the right solution for my home. Thank you!
Jo Barker
Jo Barker
Feb 28, 2024
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Fantastic service, highly recommended!
Boiler failed to work 6am Saturday morning, contacted Allstar Systems, instant response and engineer out by lunchtime. Diagnosed problem straight away, all fixed & hot water and heating back on by the afternoon!
Do not hesitate to contact Allstar Systems, very genuine and even contacted us later to make sure everything was all going well.
Well done Allstar, will be recommending you to friends and family.
Sebastian Slomkowski
Sebastian Slomkowski
Jan 31, 2024
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I had a pleasure to use their service few times.
Those guys are outstanding, fully professional , always on time.
And what is not very common these days, they are polite well behaving professionals.
Definitely I will use their services again and again and again .
Many thanks
Vanessa Sinclair
Vanessa Sinclair
Sep 22, 2023
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I had a 6 year old thermal store cylinder which failed and flooded my kitchen and dining room. I contacted Allstar Systems and William came round the same evening to discuss options. I now have an efficient unvented hot water system along side a fully pumped sealed s-plan heating system with the cylinder relocated next to the boiler. New pipe work was required due to the relocation of the cylinder which left very little visible disruption. The installation was dealt with promptly and efficiently. I was kept informed of all changes. Im extremely pleased with the result and would not hesitate in using the company again or recommending them.
Dariush Fassihi
Dariush Fassihi
May 07, 2023
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Have used previously for an oil boiler repair when my usual engineer was busy, Will was very responsive and professional. This time I needed a whole system replacement and my engineer could only install in a couple of months. Will was again very quick to reply, provide a full and accurate quote then scheduled me in within a few days!
Ben Ogley
Ben Ogley
Feb 24, 2023
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Fast response on a Saturday call out. We were able to identify the fault via phone call which enabled me to get a part in advance before supplier closed for business. The service and repair also highlighted installation faults which needed recifying to prevent further similar issues reoccuring.
Aimee Leggoe
Aimee Leggoe
Nov 25, 2022
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allstar recently replaced my boiler. Amazing service from the most professional team. Could not recommend them enough. Will was very clear on the phone and had a brilliant manner. Ashley completed the work quickly and to the best standard. We now have a top of the range Worcester bosch boiler supplied with a 10 year guarantee. We will be using them in the future to replace our bathrooms.
Anshuman Mondal
Anshuman Mondal
Nov 09, 2022
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I have been using All Star systems for several years. As a Which? Member, I found them using the Which? Trusted Trader system, and I am very glad I did. Will and his team are excellent. Over the years, they have upgraded our old gravity based heating system to a pressurised system, installed new pumps, and serviced our two boilers (one in the annexe) annually. They are professional and courteous and I highly recommend them.
Lauren Mills
Lauren Mills
Oct 03, 2022
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Called Allstar Systems for an emergency call out to check the boiler and oven, after our carbon monoxide alarm went off. Will was upfront with the cost, came as quickly as he was able to, and kept in touch with us when he was running behind schedule. He was incredibly knowledgeable about our boiler and did a thorough check for any carbon monoxide. Would recommend to anyone who requires help with their boiler/heating systems.
Vicky McKenzie
Vicky McKenzie
Sep 30, 2022
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Im so impressed by this company. My boiler broke on a Sunday, and by Tuesday Will and his team had installed a new boiler. They were everything you ever want from such a company; professional, knowledgeable, very prompt in all communication, excellent workmanship, everything tidied up after them etc. They went above and beyond to ensure that I was not left in minus temperatures for a minute longer than necessary.
I will absolutely be going back to them for servicing and any future heating issues.
Anna Pank
Anna Pank
Sep 11, 2022
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I cant recommend Will and his team enough. Our heating broke on the Sunday and Will responded straight away and came on Monday. We ended up needing a new boiler and Will worked the following weekend to get it sorted knowing we had a baby. He explained everything and was friendly and always punctual. I wont ever use anyone one else for repairs.
Hicks
Hicks
Apr 25, 2022
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Will has been an absolute gem and a pleasure to have replace my broken down boiler, add an additional emergency hot water system and to replace the previously incorrectly installed shower.

Will and his team are trustworthy, professional and completely transparent when it comes to what's wrong, and provides different options to accommodate your budget as best as he can.

I would recommend All-star to everyone and I wouldn't use anyone else. Cheers Will
D. Mb
D. Mb
Apr 03, 2022
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Will and Allstar Systems give exceptional service and expertise. Allstars offers a properly premium service, who are completely professional, and clearly pride themselves in their quality of work and tidiness. If you want someone who responds promptly, is honest, knowledgeable to another level and carries out exceptional work; honestly look no further.
Abbie
Abbie
Mar 30, 2021
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I would 100% recommend this company for all of your plumbing needs! We have used them on a couple of occasions and most recently they really did save the day (we had a boiler leak on NYs Day!!) Ashley could not have been more helpful and responded instantly despite it being a bank holiday. Allstar Systems are reliable and are incredibly reasonably priced. Ashley took safety very seriously which was very reassuring during the pandemic. 5 stars from me, I couldnt recommend enough!!
Susie Jones
Susie Jones
Mar 15, 2020
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Would highly recommend to anyone. Helped me out over the phone about my boiler leaking water on a Saturday evening! Came out the following week and fitted a new boiler for me. Very hard-working and knowledgeable.