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DMK Plumbing and Heating, Cardiff

New Boiler Installation in Cardiff

A new boiler is a big purchase, so we survey your home properly, explain the options in plain English and quote a fitted price with nothing hidden. Gas and LPG, all fitted by Gas Safe registered engineers.

  • Free home survey before we quote
  • Combi, system and regular boilers, gas and LPG
  • Fitted price agreed in writing up front
  • Manufacturer warranty registered for you
07868 470 791
Newly installed wall mounted gas boiler with neat pipework in a Cardiff home
Gas Safe Register approved engineersWhich? Trusted Traders endorsed memberCheckatrade approved member
9.923 Checkatrade reviews

Choosing the right boiler for your home

The best boiler is the one that suits your house and how you live in it, not the one with the biggest number on the box. We look at your hot water demand, mains pressure, radiator sizes and where the boiler and flue can go.

  • Combi boilers — hot water on demand, no cylinder, ideal for smaller homes and flats
  • System boilers — work with a hot water cylinder, better for busy households with several bathrooms
  • Regular (heat only) boilers — suit older properties with an existing tank and cylinder setup
  • LPG boilers — for properties off the mains gas network

How the installation works

First we visit and survey the property, then send you a written quote covering the boiler, the work and everything included. Nothing changes on the day unless you ask for it.

On installation day we protect your floors and work areas, remove the old boiler, fit and commission the new one, balance the system and test everything with you before we leave. We take the old unit and all rubbish away with us.

Finally we register the boiler with the manufacturer, hand over the paperwork and show you how the controls work.

Getting the most from a new boiler

A new boiler will cut your gas use, but the biggest gains come from the whole system working properly. Where it is needed we will recommend flushing the system, fitting a magnetic filter, or upgrading tired controls so the new boiler is not fighting old problems.

Book the first annual service a year after installation and the warranty stays valid, and the boiler keeps running at its best.

Looking for something else? See all of our plumbing and heating services or check the areas we cover across Cardiff.

Get a Free Boiler Quote

Tell us about your property and current boiler and we will arrange a free survey at a time that suits you.

We use your details only to respond to your enquiry.

Thinking about a new boiler?

Book a free survey and get a clear fitted price. No pressure, no sales patter — just honest advice on what your home needs.

07868 470 791

Questions

Frequently Asked Questions

How long does a new boiler installation take?

A straight swap for the same type of boiler in the same position is usually a one-day job. Moving the boiler, or changing from a conventional system to a combi, normally takes two days.

Which boiler should I choose?

It depends on how many bathrooms you have, how much hot water you use at once, your water pressure and where the boiler can go. We survey the property first and then recommend the right type and size rather than selling you the biggest one.

Do you install LPG boilers?

Yes. We install and work on both natural gas and LPG boilers.

Do I get a warranty on a new boiler?

Your new boiler comes with the manufacturer's own warranty, which varies by brand and model. We register the installation for you, and the warranty stays valid as long as the boiler is serviced annually.

Is the survey free?

Yes. We come out, look at the property and your existing system, talk through the options and give you a written price with no obligation.

What customers say

Rated 9.9 on Checkatrade

From 23 verified customer reviews.

Checkatrade approved member
  • Brilliant service from a knowledgeable and friendly engineer. Highly recommended

    Ed Hutchinson · 28/05/2024

  • Fantastic service! arrived on time fixed our problem right away. I highly reccomend this company.

    Grant Wallett · 28/05/2024

  • Super quick response. Fixed an emergency water leak promptly and efficiently. Will definitely use again.

    Hasan R · 24/05/2024

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