Central Heating Installation

A full central heating installation is one of the largest investments a homeowner makes in their property — and one that delivers returns every single day through comfort, lower bills, and increased property value. Whether you're installing heating for the first time in an older property, extending an existing system into an addition, or replacing an ageing system entirely, the quality of design and installation determines how well it performs for the next 20 years.

What is included

Full system design
Energy-efficient solutions
Smart thermostat installation
Magnetic filter installation

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Central Heating Installation

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What is Central Heating Installation?

Central heating installation covers the design and fitting of a complete gas central heating system — including boiler, radiators, pipework, controls, and a magnetic filter. For new installations this includes full pipework runs throughout the property. For upgrades it may involve adding radiators, replacing the heat source, or improving controls and zoning. All work is carried out by Gas Safe registered engineers.

When Do You Need Central Heating Installation?

Property has no central heating — converting from storage heaters or electric

Existing system over 15 years old and inefficient

Home extension requiring additional heating capacity

Radiators not heating evenly across the property

Converting from oil or LPG to mains gas

Adding smart controls — zoning and programmable thermostats

Replacing a back boiler with a modern combi or system boiler

What the Service Involves

1Heat loss calculation — sizing the system correctly for the property
2System design — boiler output, radiator sizing, pipework routes
3First fix — pipework runs, radiator connections, boiler position
4Boiler and controls installation
5Radiator installation and balancing
6System fill, flush, and inhibitor dosing
7Magnetic filter installation
8Commissioning — balancing, setting controls, pressure testing
9Handover — demonstrating controls and providing documentation

What Affects the Job?

—Number of radiators — size of property is the primary driver
—Boiler type and brand — combi vs system vs regular
—Whether it is a new installation or replacement
—Pipework runs — easier in new build vs retrofitting in occupied property
—Controls specification — standard or smart zoning
—Whether a magnetic filter and scale reducer are included
—Underfloor heating zones as part of the system

Frequently Asked Questions

How long does a central heating installation take?

A complete new installation in an average 3-bedroom house takes 3-5 days. Larger properties or those requiring extensive pipework chasing take longer. Replacement of an existing system where pipework is already in place typically takes 1-2 days.

What size boiler do I need?

Boiler output is calculated based on the heat loss of your property — insulation levels, number of radiators, hot water demand, and property size. An undersized boiler won't heat the property effectively; an oversized one is inefficient. Your installer will calculate the correct output.

Should I get a combi or system boiler?

Combi boilers are ideal for most modern homes up to 4 bedrooms — no cylinder, instant hot water, compact. System boilers with a hot water cylinder are better for larger homes or properties with multiple bathrooms requiring simultaneous hot water. Your installer will advise based on your usage patterns.

How much will a new central heating system save me?

Replacing an old G-rated boiler with a modern A-rated system delivers meaningful annual energy savings, and adding smart controls and zoning saves even more. The payback period on a full system replacement is typically 5-8 years through energy savings alone.