Expert boiler replacements

Upgrade Your Home’s Comfort

Expert boiler replacements tailored to your home. Get a fast, free quote and stay warm with reliable heating and hot water all year round.

Modern boiler installation service
A-rated options
combi, regular and system boilers

Get a new boiler in four simple steps

From quote to installation, we make boiler replacement clear, quick and professionally managed.

Provide your details

Tell us about your home and heating requirements, then we’ll guide the rest of the process.

Pick your model

Choose from high-quality, energy-efficient boilers that suit your property and budget.

Schedule your install

Select a convenient date and we’ll send a professional engineer to complete the installation.

Relax in comfort

Enjoy reliable heating and hot water throughout the year with your brand new boiler.

Home heating system installed for reliable warmth

Benefits of getting a new boiler

Enhance your home’s heating infrastructure with a high-performance system designed for efficiency, reliability and long-term comfort.

Maximum Efficiency

Upgrade to a smarter system that reduces wasted energy and helps lower your home’s carbon footprint.

Superior Reliability

Modern boilers are built with the latest technology to help prevent breakdowns and deliver long-term performance.

Optimised Performance

Enjoy consistent warmth and dependable hot water across your property with a correctly sized system.

Shop by boiler type

Discover the different boiler types available and choose the option that matches your home and hot water needs.

Combi

Ideal for small to medium homes, providing heating and hot water directly from the boiler.

Most popular choice in the UK
Heat and hot water on demand
Efficiency ratings up to 94%
Get a quote

Regular

Suitable for larger homes that need a steady supply of hot water from a separate cylinder.

Strong hot water supply
Compact boiler unit
Works with a hot water cylinder and tank
Get a quote

System

Perfect for homes with multiple bathrooms and higher hot water demand.

Works with a pressurised hot water tank
No cold storage tank required
Great for busy family homes
Get a quote

Our Professional Accreditations

Gap Project provides practical survey advice, trusted workmanship and professionally managed boiler installation from first quote to handover.

Professional installation
Energy-efficient recommendations
Trusted workmanship
Survey-led boiler advice

Indicative Price Guide

Guide prices only, based on typical UK installations. Your final price is confirmed after a free survey and depends on property type, system size and site conditions.

OptionTypical cost
Combi boiler swap£1,900 to £2,800
System boiler with cylinder work£2,600 to £3,800
Boiler relocation or system conversionfrom £3,500

Frequently Asked Questions

How long does a boiler replacement take?

A straight swap is usually completed in a day. Moving the boiler or changing system type can take two to three days.

Which boiler size do I need?

Sizing is based on the number of bathrooms, radiators and your hot water demand, not simply the size of the old boiler.

What warranty do I get?

Manufacturer warranties commonly range from 7 to 10 years, subject to annual servicing by a qualified engineer.

Combi, system or regular boiler?

Combis suit homes with one bathroom and no cylinder. System and regular boilers suit higher simultaneous hot water demand.

Do you remove the old boiler?

Yes. Removal, safe disposal and full commissioning and Building Regulations notification are included.

Is finance available?

Finance is available for boiler installation, subject to status and credit checks, through our regulated finance partner.

Ready for a warmer, more efficient home?

Speak to Gap Project for a fast, free boiler replacement quote tailored to your property.