Survey
We look at the house, the pipework, the water supply and where the boiler and flue can go.
Heating · New boilers
A new boiler, sized for the home you have.
Combi, system or regular: the right boiler depends on how many bathrooms you have, your mains water pressure and where the cylinder and tanks are, not on what is on offer this month. We survey first, explain the options, and fit it properly.
- Gas Safe registered
- MCS heat pumps
- F-Gas certified
What’s included
The work, done properly.
- Home survey: heat demand, hot water use, mains flow and pressure
- Combi, system and regular (heat-only) options explained
- Flue route and condensate drain planned to current regulations
- System clean, inhibitor and a magnetic filter to protect the new boiler
- Controls upgrade, from a simple programmer to a smart thermostat
- Building control notification and Benchmark commissioning
- Old boiler removed, plus loft tanks and cylinder if we convert the system
Signs you need this
- The boiler breaks down every winter
- Parts for your model are getting hard to find
- A back boiler behind the fire, or an old floor-standing boiler in the kitchen
- You are moving the boiler as part of a kitchen or loft conversion
- Hot water runs out, or the shower drops when someone runs a tap
A combi heats water on demand from the mains, so there is no cylinder and no tanks; it suits flats and smaller homes with one bathroom. A system boiler feeds a hot water cylinder and suits homes where two showers run at once. A regular, or heat-only, boiler works with a cold water tank and a feed and expansion tank in the loft, and is often the least disruptive choice in older houses with low mains pressure or pipework never designed for a sealed system.
The mistake we see most is a big combi fitted to a house with three bathrooms, or to a street where the mains pressure is poor. A combi can only deliver as much hot water as the mains supplies, however large its output, so we measure flow and pressure before we recommend one.
Every new gas boiler is notified to building control by the Gas Safe installer, and you receive a Building Regulations compliance certificate. Manufacturer warranties usually require an annual service, so we tell you exactly what yours needs to stay valid.
How it works
Written quote
Options, boiler, scope and price in writing. No pressure.
Fitting
Floors protected, old boiler out, system cleaned, new boiler in.
Commission and hand over
Benchmark checklist completed, building control notified, controls explained.
- Gas Safe registeredEvery gas job is done by an engineer on the Gas Safe Register.
- MCS-certified heat pumpsRequired for Boiler Upgrade Scheme grants.
- F-Gas certifiedAir conditioning and refrigerant work done to the regulations.
- Fully insuredPublic liability cover, with certificates for freeholders and agents.
Book new boilers & replacement
Tell us what’s going on.
Send the address and a few details. We’ll confirm timing and next steps, and you’ll get a written price before any work starts.
Prefer to talk? 020 7946 0182
Combi, system or regular: which do I need?
Combis suit flats and smaller homes with one bathroom and good mains pressure. Homes with two or more bathrooms usually do better with a system boiler and a cylinder. Older houses with tanks in the loft sometimes keep a regular boiler to avoid stressing old pipework. We recommend after the survey, not before.
How long does a replacement take?
A like-for-like swap is often done in a day. Converting a regular system to a combi, moving the boiler or taking tanks out of the loft takes longer. The quote gives you a realistic timeline.
Can the boiler go somewhere else?
Usually, within the rules on flue position and condensate drainage. Kitchen cupboards, airing cupboards and lofts are all common. In tenement and mansion block flats, the flue route is often what decides it, so we check that at the survey.
Should I get a heat pump instead?
It depends on the house. Many homes can run well on a heat pump, especially with the Boiler Upgrade Scheme grant in England and Wales; some need insulation or larger radiators first. We can price both and explain the trade-offs honestly.
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