We assist homeowners, landlords, commercial businesses and property managers with a full range of services including boiler installation, servicing and repair, emergency heating support, central heating upgrades, power flushing, hot water system care, radiator installation, underfloor heating, bathroom plumbing and ongoing maintenance. Commercial services include boiler servicing and replacement, gas and LPG systems, temporary boiler hire and planned maintenance programmes.
Boiler Installation
Our team provides boiler replacement and installation services tailored to different property types and heating requirements. We install gas, oil, and LPG boilers designed to improve heating efficiency and hot water delivery. Before carrying out any work, we assess the current system to identify the most suitable replacement. This ensures the boiler selected is appropriate for the property's needs.
Boiler Repair
We offer boiler repair assistance for domestic and commercial customers requiring professional heating support. Our engineers investigate faults methodically to determine the underlying issue affecting the system. We repair gas, oil and LPG boilers and address a range of related heating faults. Whether dealing with leaks, boiler shutdowns or circulation concerns, we provide informed recommendations. Our priority is restoring dependable heating and hot water as efficiently as possible.
Power Flushing
We support domestic and commercial properties with professional power flushing services for central heating systems. Sludge within the system can lead to inefficient performance, cold spots in radiators, and strain on the boiler. Our engineers carefully assess the system before recommending flushing to ensure the correct solution is provided. The service is intended to restore circulation, improve efficiency, and enhance heating consistency throughout the property.
Hot Water Systems
At Allstar Systems, we support homeowners with professional hot water system repairs, upgrades, and installations. Our engineers identify and repair faults including leaking cylinders, faulty thermostats, pressure problems, and unreliable hot water supply. We assess each property thoroughly before recommending any replacement or upgrade work. By ensuring systems are correctly installed and maintained, we help improve long-term hot water performance and reliability.
Underfloor Heating
At Allstar Systems, we deliver underfloor heating services focused on efficient operation, reliable comfort, and suitable system design. We install electric heating systems for selected rooms and wet systems for wider property coverage where even heat distribution is important. Our engineers also repair faults, adjust manifolds, and improve heating controls when required. Every recommendation is based on a detailed assessment of your flooring and heating needs.
Emergency Plumbing
We provide emergency plumbing repairs for domestic and commercial properties experiencing urgent issues. Our team responds swiftly to plumbing faults to help prevent unnecessary damage and disruption. From leaking systems to burst pipes, we undertake repairs with efficiency and professionalism. Customers trust us for our dependable service, skilled workmanship, and commitment to delivering high standards on every job.
Bathroom Installation
We offer professional bathroom installation services for homeowners wanting elegant and practical spaces. Our installations include bespoke bathrooms, en suites, wet rooms, and modern shower rooms finished to a high standard. Every component is selected and installed with long-term durability in mind. By combining quality plumbing with thoughtful design, we create bathrooms that function exceptionally well.
Commercial Gas Services
We provide commercial gas and LPG services for a broad range of commercial buildings and operational environments. Our services include installations, pipework works, gas testing, purging, and safety inspections carried out with a safety-first approach. Prior to starting works, we assess the site and prepare all necessary planning documentation. This enables us to complete projects efficiently while supporting safe day-to-day operations.
Commercial Boiler Servicing
Our commercial boiler servicing is designed to support the ongoing safety and performance of heating systems used within commercial properties. We inspect boilers thoroughly, assess maintenance requirements and provide clear information regarding the condition of the system. From offices to healthcare facilities, we service gas, LPG and oil boilers to help maintain efficient heating and dependable operation across commercial sites.
Mar 06, 2026
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!
Feb 22, 2026
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.
Feb 05, 2026
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
Jan 26, 2026
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
Dec 23, 2025
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.
Sep 25, 2025
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.
Sep 15, 2025
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.
May 24, 2025
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!
May 19, 2025
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
Apr 22, 2025
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.
Apr 04, 2025
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!
Mar 11, 2025
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
Jan 31, 2025
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.
Jan 23, 2025
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
Nov 28, 2024
We have just recently had a new gas boiler installed by William Smith and his team from Allstar Systems. who have given us excellent service. We are delighted to have a warm house again. We will see them in 12 months time for an annual service.
Oct 24, 2024
Two weeks before Christmas and our unvented mains hot water tank died.
Allstar visited within a couple of days and not only deemed it terminal but that it had been installed incorrectly, illegally, by the original plumber.
Within a week they had sourced a new tank and installed in line with the building regulations.
One cannot ask for better service than that.
If you want, or have got an unvented mains hot water tank, ("Megaflow"), these are your guys. They have the essential additional qualifications over and above the usual "Gas Safe" one.
Oct 12, 2024
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!
Sep 28, 2024
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!
Mar 04, 2024
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!
Mar 03, 2024
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.
Feb 15, 2024
William and his team once again provided professional, excellent service, replacing my water feed tank system with an unvented cylinder together with a water softener at the mains inlet. His in-depth knowledge inspires confidence. Communication and reliability are first rate. I recommend this company without any reservations.
Nov 08, 2023
We have used Allstar systems for several years. On my own property and for my own customers. They have just installed another heating system for my company. I highly recommend them to all my customers as they are reliable, efficient, and good value for money. Work is always at a high standard. Thanks will and boys..
John LeMay, Merryfield services
Feb 24, 2023
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.
Jan 23, 2023
Great 24/7 emergency service. Called on Sunday as we had no water, they were prompt, knowledgeable friendly and clear on pricing. They sorted the issue quickly too. Would highly recommended and will use them again
Dec 19, 2022
My oldish combi boiler broke during the recent cold spell. Will attended out-of-hours on the day that I called him. He swiftly diagnosed the problem and discussed in detail the options of an attempted repair or a new boiler. I was given ample time and information to make my decision. I chose the latter and it was installed and working within a week. Will is courteous, respectful, responsive and knowledgeable. The work was completed to a very high standard and my house was left clean and tidy. I am very happy to highly recommend Allstar Systems.
Oct 03, 2022
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.
Apr 19, 2022
Allstar Systems installed a new replacement gas boiler for me a couple of years ago in my new home in Norwich and they have completed the annual service on it twice since then. All is going well, and I am very pleased to have a new (and much more efficient) Worcester Bosch condensing combo boiler installed, especially since the recent drastic increase in the cost of my gas by over 90 percent in April 2022!
Apr 03, 2022
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.
Jan 09, 2022
Called Allstar for an emergency when our boiler wouldn't fire up. Will got the boiler up and running again but, we knew it was on it's last legs. Will and his team had a new boiler within 2 weeks, ordered and fitted, with new thermostat valves. And to the exact price that was originally quoted. Would definitely recommend and we will be using Allstar Systems for our annual servicing going forward.
Mar 15, 2020
Will and his team were totally professional in all that they did.
Worked solidly for 2 weeks to complete all of our works, including some late nights.
Will shared his great knowledge and advised us with patience and total understanding of our needs.
Work completed to a very high standard and all emails and phone calls answered promptly.
Nothing was too much trouble for this highly recommended team.
Will definitely call on these guys again for all our plumbing and heating needs.
Thank you so much Will, Ash, Banki and Luke for all of your hard work; its really appreciated.