Business Details
15 Years
experience
Open 24/7
always available
We assist homeowners, landlords, businesses and commercial property managers with boiler installation, servicing and repairs, emergency heating support, central heating upgrades, power flushing, hot water system maintenance, radiator work, underfloor heating, bathroom plumbing and general maintenance. In addition, we provide commercial boiler servicing and replacement, gas and LPG services, temporary boiler hire and planned maintenance. Our engineers ensure clients receive clear explanations and practical guidance, enabling informed decisions on repairs, upgrades or system replacements.
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, Kings Lynn, Long Stratton, North Walsham, Reepham, Sheringham, Swaffham, Thetford, Wymondham
Details
- Year established: 2011
- Employees: 4
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
- Mobile payments
- Bank transfers
Services
Boiler Installation
We specialise in installing and replacing boilers in homes, flats, and commercial premises. Our engineers work with gas, oil, and LPG systems and provide recommendations based on a full assessment of your current setup. Choosing the correct boiler can improve heating efficiency and comfort throughout the property. We also offer practical advice to support the replacement process.
Boiler Repair
Allstar Systems offers boiler repair support for a wide range of heating and hot water faults. Our experienced engineers assess the condition of the appliance and heating system before advising on repairs. We work on domestic and commercial gas, oil and LPG boilers of many different manufacturers. Faults such as leaks, lockouts and circulation issues are handled with care and professionalism. We aim to provide clear advice and reliable repair solutions for every property.
Power Flushing
We offer a complete power flushing service for heating systems struggling with poor circulation and reduced heating performance. Before starting the flushing process, we inspect the condition of the system and its components carefully. This service can help improve radiator efficiency, reduce heating imbalance, and support quieter boiler operation. Our professional approach ensures that each heating system receives the most appropriate and effective treatment available.
Hot Water Systems
We specialise in repairing and upgrading domestic hot water systems to improve performance and reliability within the home. Our engineers address a range of faults including leaking cylinders, control failures, poor pressure, and insufficient hot water supply. Each property receives a detailed assessment before recommendations are made. Whether you require maintenance, repairs, or a replacement system, we deliver professional workmanship throughout every stage.
Underfloor Heating
Our team provides underfloor heating systems that are designed to work effectively alongside existing boilers, radiators, and heating arrangements. We install both electric and wet underfloor heating solutions for homes requiring consistent and controlled warmth. From low-profile retrofit systems to new build installations, we tailor our work to your property requirements. We also carry out repairs and adjustments to restore underperforming systems.
Emergency Plumbing
We respond rapidly to emergency plumbing situations affecting domestic and commercial properties. Plumbing faults can cause significant disruption, which is why our team works quickly to minimise damage and complete effective repairs. We regularly deal with leaks, burst pipes, and urgent plumbing issues of all kinds. Clients trust our reliable service, professional advice, and experienced workmanship.
Bathroom Installation
Our luxury bathroom installations are built around thoughtful design, premium products, and skilled craftsmanship. We install everything from modern wet rooms to bespoke en suites with close attention to detail throughout the process. Each bathroom is planned to maximise comfort, efficiency, and durability over time. We take pride in delivering refined spaces that perform as well as they look.
Commercial Boiler Servicing
We provide commercial boiler servicing tailored to the specific requirements of different buildings and heating systems. Our servicing includes inspections, safety checks and maintenance reviews designed to support the efficient operation of commercial boilers. Whether operating gas, LPG or oil systems, our approach helps clients maintain reliable heating, identify developing issues and improve the overall condition of their boiler plant.
Commercial Gas Services
We provide commercial gas and LPG support for projects involving installations, refurbishments, plant rooms, and gas safety inspections. Our team works with commercial buildings such as schools, hospitality venues, offices, and industrial sites. Each stage of the work is planned carefully to reduce disruption and maintain safety standards. We also ensure appropriate assessments and documentation are completed before works commence.
Reviews (20)
Elisa Moore
Feb 22, 2026
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We had an issue with the boiler so I called Allstar Systems and William got straight back to me and arranged to visit within the hour. The issue was sorted quickly so we had access to heating and hot water. William provided me with details of the repairs that were required and an appointment made for these to be completed as well as a boiler service. A quote was provided for the work which I agreed to and the work was carried out a few days later. I am impressed with the communication received and the work undertaken by William and the team. I will not hesitate to use this company again.
Nunu
Dec 23, 2025
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Really great service from William from Allstar Systems. I gave him a call directly because our boiler packed up on Friday evening. He attended within a couple of hours even though he was miles away attending another job. He showed me the problem with the boiler and explained everything in layman's terms. He got the boiler working and gave honest recommendations for the future regarding the boiler. I have no hesitation in recommending him and this company.
Jonny Benton
Nov 26, 2025
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Came out quickly to do a service and quickly identified serious issues. Gave us multiple solutions and explained them all in detail, with the various pros and cons of each option. Work was done promptly and neatly, Will and his colleagues were all polite and helpful.
Nathan Gull
Jun 16, 2025
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Called out Allstar for a broken-down boiler which had been on its last legs for a while. They were the quickest company to respond, came straight out, organised a replacement boiler and installed it quickly and professionally. Absolutely 5-star customer service and looked after us really well, highly recommend!
Rhi
May 24, 2025
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Couldn't be happier with William and Ashley at Allstar. Booked in very quickly and easily when boiler had an issue, then easily enough for repairs and servicing a few weeks later. The team were flexible enough to bring the apt forward a week and diligently replaced the parts as originally recommended and provided our yearly service. Very responsive to calls and emails.
Ashley was very professional, friendly, kindly showing and explaining some parts to me and what it could mean/need. Will be booking in with them again for any further issues and servicing needs. Thanks guys!
Ashley was very professional, friendly, kindly showing and explaining some parts to me and what it could mean/need. Will be booking in with them again for any further issues and servicing needs. Thanks guys!
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
Craig Brown
Apr 22, 2025
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Had a major problem with our hot water system that William sorted and replaced in a very timely manner. Keeping us in the loop on time scales for replacement parts along with how the work schedule would be completed. Being without hot water over the Christmas period seemed like a real possibility but Allstar made sure we were sorted professionally and promptly.
Installation looks a big improvement on the old system as well - first rate service all round.
Installation looks a big improvement on the old system as well - first rate service all round.
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!
Sarah Cassells
Mar 22, 2025
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Our boiler died during a freezing February week and after being messed around by an emergency engineer, William was an absolute hero. Within two days of contacting him our new boiler was in and heating our radiators and hot water more efficiently than ever. I have never encountered a heating engineer who is so friendly and professional and cannot recommend him highly enough.
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
Jeanette Stokes
Jan 23, 2025
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hot water broke down, just when temperature dropped! Allstar Systems provided prompt and very efficient service. Engineer clearly explained everything to me in a curtious manner. Would highly recommend
Chris Burdett
Nov 18, 2024
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Prompt service from a professional team who ensured that our hot water system was properly configured as well as providing the power flush quoted for. Heating and hot water now performing better than they have in years!
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!
Sue Cheng
Mar 11, 2024
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Will and his team did an excellent job of installing an unvented cylinder, upgrading the central heating system and a new boiler. He also helped to replace new kitchen and bath taps. Will is very patient in explaining what works needed to done and why. He was also on hand and available to answer questions I had no matter how busy he was. Definitely recommend
Philip Moxon
Mar 03, 2024
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Talked through and explained works needed to replace boiler and secure functioning of new boiler for anticipated lifespan. Heating system zoned. All explained. All work neatly done with attention to detail. All left clean and tidy, even filled old holes left from previous installation done by others. Would recommend to anyone who wants good quality and professionalism.
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.
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
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
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.
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
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!
David Goodman
Mar 10, 2023
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We had a burst pipe in our central heating system. Will from Allstars came out late at night and at short notice. The service was professional, timely and top notch. Thank you Will and the team.