Highly recommended – needed a tap replaced due to a leak, booked in for next day, arrived promptly, did a fantastic clean job and really good communications – thanks a lot!
Let our expert Team of Heating engineers will get your Central heating & hot water working again – Fast! Not only that we’ll also slash the costs of a British Gas install!
Choosing a new replacement boiler can be confusing. Poor installation, low quality products…. no warranties or guarantees, and rip-off plumbers that install systems that won’t work as promised.
British Gas overcharges and cowboy plumbers will install an inferior boiler that will leave you out in the cold.
At Mizzen we… “Guarantee to Find you the right solution for your unique boiler and heating needs”
That’s a Promise!
Our dedicated Gas Safe Registered engineers are qualified to carry out a wide range of heating services.
With years of experience and an expert understanding of the leading boiler brands – from Vaillant to Worcester Bosch – we offer an unrivalled service from start to finish.
To prove it we offer all our customers a 12-month guarantee on our workmanship
March 13, 2025
Highly recommended – needed a tap replaced due to a leak, booked in for next day, arrived promptly, did a fantastic clean job and really good communications – thanks a lot!
March 13, 2025
Mizzen have been servicing my boiler since 2020. I called them in to change my megaflow type system to a combi boiler. The manager Charlie talked me through my options and gave me his recommendations and explained exactly what would happen. His colleagues Alan and Harrison were great and were experts in boiler fittings and pipework. If pipework were an art, they would be Michelangelo and Da Vinci. Such skilled and competent workers, truly committed and taking pride in their work. Their work was neat and careful, not rushed or slap dash. They also fitted my new radiator and new shower. Lovely Mark came to take away the old boiler, tank and all of the rubbish the next day.
March 13, 2025
New boiler installation: fantastic experience from start to finish. Prompt Comms, great job and reasonably priced. Happy tenants too!
Can’t recommend the team enough.
March 13, 2025
Our boiler was broken last week. We urgently needed a new boiler instalment as we have a toddler in house and are soon expecting a new baby. Mizzen has booked new boiler instalment in a short-notice. They came and did pretty clean and good work. I worked with Mizzen for a couple of other repairs in house before. They are always reliable, friendly and providing quality service. A safe pair of hands and highly recommended.
March 13, 2025
Job well done. My parents found Harrison to be most polite, efficient & tidy when replacing a kitchen trap. Would thoroughly recommend Mizzen.
March 13, 2025
I had a major leak from my boiler during heavy rain fall. Charlie talked me through what I needed to do, out of business hours. What a gem. I ended up requiring a new boiler. All priced up, and Paul and James fitted it a few days later. Neat and tidy. I wouldn’t hesitate to recommend them, in fact, I already have. They are fair and reliable. Thanks lads.
March 13, 2025
Very good experience with this company. The office was efficient and helpful. The visits were arranged with a minimum of delay.
The work was undertaken by a plumber called Levi who was very diligent and logical solved the problems in our underfloor heating system. He provided comprehensive advice on how to manage our now repaired heating system.
March 13, 2025
Charlie and Mizzen Construction are AMAZING!!!! I have had them do all my Boiler, plumbing and Kitchen installation for the last 17 years. I worked with many – but they are definitely the best by far! Always, prompt and friendly, he and his team of plumbing/heating experts are second to none. I highly recommend Charlie. 10/10
March 13, 2025
Great communication from the initial enquiry. Harrison arrived on site promptly, he was really polite and professional, and we were really pleased with the work carried out. I will definitely be using Mizzen again in the future! Many thanks.
March 13, 2025
Firstly, huge apologies for such a late review. Charlie and the team did our bathroom months ago.
It was professional from the get go. Charlie was superb at advising and keeping costs realistic. He explained things through that would make the bathroom less prone to issues.
Gary and Matthew ripped the old bathroom out quickly and made the space good then installed everything really efficiently. Then the tilers came and did a fantastic job.
Gary came back once done to move a couple of bits and was exceptionally professional and skilled.
Finally, we had a leak issue which was a quick simple fix and was done about a week or so later.
Months in now, so happy with the bathroom.
I’d totally recommend Mizzen because from start to finish, it was a pleasure and the work is to a very high standard.
One of our Engineers will visit your home to understand your needs (property type, size, location) and recommend a suitable boiler size and type within your budget. or Click here for a Whats App call
You’ll automatically receive a bespoke tailored detailed quote with options outlining the boiler cost, labour charges, and any additional work or components needed.
Depending on complexity, installation can take as little as 4 hours or as long as 3 days. Replacing a combi with a combi is quicker, while back boiler conversions take longer. Mizzen always treats your house like our own home. Tidying up after and keeping a clean working environment.
Our options.
Note: New pipework, boiler relocation, or adding new components will be factored into the process & the detailed quote.
Choosing the perfect boiler can be a daunting process – but we will assist you to make the right choice for your circumstances
With our expert guidance we’ll ensure you end up with the perfect Boiler & heating system for you. We work hard to make sure you get the best system at the very best price
Mizzen | British Gas | Glow Green | Pimlico | Boxt | |
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Family Business | ✅ | ❌ | ❌ | ❌ | ❌ |
Local – in your Community | ✅ | ❌ | ❌ | ❌ | ❌ |
100% Unbiased Expert Advice | ✅ | ❌ | ✅ | ✅ | ❌ |
Commission-Free Installers | ✅ | ❌ | ❌ | ✅ | ✅ |
In-house Installers/Engineers | ✅ | ❌ | ❌ | ✅ | ✅ |
Whole Market | ✅ | ✅ | ✅ | ✅ | ❌ |
Smart Home Expertise | ✅ | ❌ | ❌ | ❌ | ❌ |
0% Finance | ✅ | ❌ | ✅ | ✅ | ✅ |
Payment Plans | ✅ | ✅ | ✅ | ✅ | ✅ |
“One-stop” Home Care Shop (Kitchens, Bathrooms, Extensions) | ✅ | ❌ | ❌ | ✅ | ❌ |
Service Plans | ✅ | ✅ | ✅ | ✅ | |
24/7 Call Outs | ✅ | ❌ | ❌ | ✅ | ❌ |
Mizzen “BEST Boiler” Guarantee | ✅ | ❌ | ❌ | ❌ | ❌ |
“… At the Mizzen group we pride ourselves on finding the Perfect Boiler or heating solution for your unique situation. Let us hold you hand to find you the right solution – at the right price”
– Charlie Mizzen. Founder Mizzen Group
Want to know more about getting a new boiler?
Here are some common questions
The cost of a new boiler can vary depending on the type and size of boiler you need, but you could have a brand new A-rated boiler installed from £1,699 . Get your fixed price quote, plus a recommendation on the right boiler for your home and budget
The lifespan of your boiler can depend on a number of factors, but the average lifespan of boilers in the UK is between 10-15 years. However, a boiler’s actual lifespan depends on its quality, type, and maintenance
If your home currently has a conventional boiler, installing a new combi boiler could help you save space and be more energy efficient
With over 65 5-star Google reviews, you can trust Mizzen to help you find the right boiler for your home. With 16 Gas Safe Registered engineers means if you order a new boiler before 4pm, your fixed price, A-rated boiler could be installed as soon as the very next day.* Just answer a few straightforward questions about your home to get a fixed price quote.
If you have any questions about Boilers or Heating solutions, you can contact our amazing customer care team on phone NOW… or use our live chat in the bottom right corner