Boiler Replacement
Replace your aged, inefficient, or breakdown-prone boiler with an industry-leading A-rated condensing model. Designed to lower heating bills by up to £300+ annually, delivered with up to 12-year manufacturer warranties and next-day installation by Gas Safe registered engineers.
What is Boiler Replacement?
A boiler replacement involves safely decommissioning and removing your existing boiler and installing a state-of-the-art condensing gas or system boiler. Modern A-rated condensing boilers extract latent heat from exhaust flue gases that older conventional models waste up the chimney, converting over 94% of fuel directly into usable warmth. Our turnkey service includes precision copper pipework, magnetic system filtration, high-pressure chemical flushing, and complete Gas Safe certification.
Every installation is completed by directly employed, Gas Safe registered engineers with full manufacturer warranty registration and building regulations compliance certificates.
Standard Installation Includes
Save Up to £340/Year
Modern condensing technology cuts carbon emissions and lowers annual gas utility bills significantly.
Up to 12-Year Warranty
Official Worcester Bosch accredited partner status gives you maximum parts and labor warranty protection.
Next-Day Fitting
No waiting in the cold. Emergency and fast-turnaround replacements installed by certified Gas Safe engineers.
Old Unit Removal & Recycling
We responsibly disconnect, remove, and eco-recycle your old boiler, scrap metal, and packaging at zero extra cost.
Installation Gallery
Real DG Heating workmanship • 4 verified photos
Pristine Combi Installation
Worcester Bosch Greenstar combi boiler with precision copper pipework and magnetic system filter.
Combustion & Flue Testing
Gas Safe engineer performing digital flue gas analysis and safety commissioning.
Compact Kitchen Installation
Seamless integration into standard kitchen cupboard spaces with concealed pipe routes.
Boilers On Display
Live display models available to view and inspect at our regional showroom.
The 4-Step Process
Instant Fixed Quote
Answer a few straightforward questions online or by phone to receive a guaranteed fixed-price quote with zero hidden extras.
Technical Survey
Our Gas Safe engineer verifies pipe sizing, gas pressure, and flue positioning to ensure an optimal setup.
Installation Day
Old equipment is drained and removed, the system is chemically cleansed, and the new boiler is expertly installed.
Testing & Handover
We test all safety interlocks, explain your new thermostat controls, and register your 10–12 year warranty.
Frequently Asked Questions
Get an instant quote for your boiler replacement.
Answer a few simple questions for a fixed-price calculation, or arrange a complimentary technical survey with our Gas Safe team.