Gas Boiler Installations, Boiler Servicing & Boiler Repairs
DM Gas and Heating

Boilers

Boiler Installation / Central Heating

Is it time for a new boiler? When you think it’s time for a new boiler or complete heating system, it normally is. Your old boiler may not be meeting your daily needs, the repair bills may be piling up.

We specialise in supplying and fitting the latest energy efficient combi boilers, system boilers and regular (open vent) boilers with long manufacturer guarantees for your added peace of mind. Our qualified gas boiler engineers will advise you what is the right configuration for your home, your daily demands, and your budget.

Boiler Servicing Havant

Boiler Servicing & Repairs

Do you need help fixing your current boiler? If your boiler breaks down and you’re suddenly without heat and hot water, we are here to carry out repairs on all models.

Is your boiler due an Annual Service? Keep your boiler and heating system in perfect condition by allowing us to check and maintain it for you. A regular boiler service will significantly reduce the risk of surprise breakdowns further down the line and keep it running efficiently.

We are Vaillant Advance Installers

  • Up to 10 years guarantee on new Vaillant gas boilers
  • All installs include a system filter and inline scale filter
  • Our engineers are Vaillant trained
  • Finance options available
  • All premium options include a smart thermostat
  • Vaillant boiler service & repairs

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Vaillant Boilers

Price Guarantee

We will beat any Like for Like quote by £50!

We promise to our customers that any Like-for-Like new boiler installation quote from a reputable gas safe registered company we will beat by £50.

Why choose us

DM Gas and Heating is a family run Havant business with gas safe registered boiler engineers. The services we offer include general plumbing, new boiler installation, boiler servicing, boiler breakdowns, gas safety certificates and other gas works.

We are based in Havant but cover Hampshire and West Sussex, including Portsmouth, Waterlooville, Petersfield, Fareham, Gosport, Chichester and Bognor Regis.

  • Friendly, professional and responsive service
  • Honest and accurate affordable pricing
  • We listen to your requirements
  • Tidy reliable engineers
  • Vaillant Advance installers

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What our customers are saying...

Latest News & Installations

17 April 2023

Vaillant Boiler Installation Portsmouth

Installation of new energy efficient Vaillant Boiler installation in Portsmouth, Hampshire by DM Gas & Heating.

17 April 2023

Fareham Vaillant Boiler Installation

DM Gas & Heating cover Fareham, and recently installed this Vaillant Boiler for our clients.

25 August 2022

Vaillant Boiler Service on an Ecotec Plus 831

Service and strip down of a Vaillant Ecotec Boiler.  Our Havant based Gas Safe engineers performed a full strip down, clean and service.