Cardiff Bay

We are a nationwide boiler installation company based in Cardiff. With a network of over 100 Gas Safe registered engineers, we cover the entire UK. However, we also have a team that is based from our head office in Rumney. This enables us to cover all CF and NP postcodes and beyond.

Covering the entire city and county of Cardiff plus many other places in South Wales, from our Rumney head office, our team regularly undertake boiler installations in nearby locations including Newport, Cwmbran, Caerphilly, Penarth, Dinas Powys, Barry, Pontypridd and Bridgend.

Enter your postcode to get a free quote in minutes

Our office location

Boilerhut Limited
UK Head Office
Above Willis Systems
Lamby Industrial Park
Wentloog Avenue

Make an enquiry

If you are interested in getting a new boiler installed in Cardiff or nearby, we will be happy to assist you. Call us on 029 2009 9898 to find out more. Alternatively, enter your postcode below to get an instant quote in minutes – at any time of the day!

How much does a boiler installation cost in Cardiff?

The average cost to install a premium gas boiler into a 3 bedroom house in Cardiff is £2,196. This is based on a combi boiler to combi boiler swap.

71.4% of properties in the Cardiff unitary authority area are connected to the mains gas grid. Due to this, the majority of boilers installed in Cardiff are gas boilers, with only smaller numbers of oil and LPG boilers installed.

Combi Boiler Replacement Cardiff

The video below shows our engineer Ryan undertaking a recent combi boiler to combi boiler swap in Cardiff. As part of this installation, he decommissions and removes the customer’s old Baxi combi boiler and then replaces this with a brand new Viessmann combi boiler. Find out more by watching this video below.

Enter your postcode to get a free quote in minutes

Is Cardiff a hard water area?

No, Cardiff is a soft water area. Much like the rest of Wales, the water in Cardiff contains low levels of calcium carbonate. For a boiler installation in Cardiff, this means that a hard water filter is not necessary.

Trained installers with over 40 years of experience

We are proud to be Viessmann Trained Installers, part of the Grant G1 scheme, Ariston recommended installers and approved Navien Service Agents. 

We are also proud of the fact our team comprises installers with over 40 years of experience in providing heating services to households across Cardiff.


Viessmann Trained Installer Cardiff


Grant G1 Cardiff

Ariston Recommended Installer Cardiff Navien Certified Installer Cardiff

However, as an independent boiler installation company, we are able to install boilers from any manufacturer. If you would like to discover our thoughts on the current ranges from the major boiler manufacturers offering products in the UK, see the following guides we have put together:

Best Condensing Boilers

Which Boiler is Best?

Best Oil Boilers

Worcester Bosch vs Viessmann

Baxi vs Worcester Bosch

Baxi vs Viessmann

Reviews from previous customers in Cardiff

Combi boiler to combi boiler swap – installation of  a Viessmann Vitodens 050-W 29kw gas boiler

Quick response when in need, professional manner with competitive prices, boiler is great definitely recommend to others
Cheers guys
Steve, Barry

Conventional boiler to combi boiler conversion in Cardiff

First-class service! Boiler packed in on Monday evening had a look on the internet and came across Boilerhut. Entered details and at 9pm had a phone call from Paul. Went through what was needed so sent photos the following morning. Have a large family with children so Paul arranged for the installer to come Thursday as I was going away on the Friday. Managed to get 2 installers there on Wednesday and completed the job in one day! Full removal of old boiler and converted to Combi boiler. Removed tanks from attic and airing cupboard. Can’t recommend this company highly enough, amazing service! Thanks guys for such a quick turnaround.

Edward Morgan, Barry

Boiler relocation

Just had a new boiler fitted by boiler hut (Fri 30 Mar). Fitters turned up on time, but the start of work was delayed due to an unforeseen problem with pipework. After a short discussion with Paul from the office and the fitters Andy and Gavin (with great reassuring advice).it was decided to relocate the boiler from the kitchen to the airing cupboard, end of problem. The work was carried out to a professional standard. Andy and Gavin were polite, clean and tidy throughout with respect to your property and also keeping us informed on how things were going along the way. The boiler now is in a much better place thanks to their advice. I would certainly recommend boiler hut to anyone. Top job

Peter C, Whitchurch

Boiler replacement- Viessmann boiler

After a few months looking and contacting a few gas engineers for boiler replacement, with no luck at all ,we found Boilerhut , spoke with Paul in his office on 14th of April ,he came to our house and gave us a quote not long after , all this on same day ! After 5 days our boiler was installed!! Shaun and his dad installed the boiler in 12 hours , very professional job and hard workers ! We couldn’t be more happy ! What a fantastic job and good price too! Everything was excellent and straight forward! Thanks to the Boilerhut team ! We will recommend you for sure !

Luis Dias, Llanrumney

Rated Excellent on Trustpilot


We are happy to say that people love us, not just in Cardiff but all over the UK. With 5 stars and a Trustscore of 4.9 out of 5, we are rated Excellent on Trustpilot. See our reviews for yourself on Trustpilot.