5% off your first Design & Build project · 10% off when you refer a friend · Building & construction only
New systems, upgrades, radiator changes, power flushes and controls — installed and balanced by Gas Safe engineers who care whether the top-floor rear bedroom actually gets warm on a January morning.
Gas Safe registered · £2M insured · 30+ years in the trade · 24/7 emergency line
What it is
Design, installation, repair and upgrade of wet central heating systems: boilers, radiators, pipework, valves, pumps, controls and system water treatment.
Who it's for
Homeowners with cold rooms, noisy pipes or ancient controls; anyone extending or renovating; landlords needing reliable heat before winter.
When you need it
When rooms won't get warm evenly, when radiators are cold at the top or bottom, when the pump is loud, when the boiler is being replaced, or when you're already opening floors for other work.
Why use a professional
A heating system that's designed and balanced correctly cuts fuel bills, keeps the boiler under warranty, and — quietly — adds real comfort to daily life for years.
The cheapest time to deal with a plumbing or heating fault is almost always now. Water damage, gas issues and system stress compound quickly — the invoice grows with them.
If you leave it
Common DIY mistakes
You get the same sequence every time — so there are no surprises on the invoice and nothing missed on the job sheet.
We measure room heat loss, count and check radiators, inspect pipework and controls, and take a system water sample.
Fixed proposal covering equipment, treatment (flush/clean), controls and any pipework changes.
Floors and carpets protected. Isolate, drain, and — where needed — power flush.
New pipework in copper or MLCP, correctly-sized radiators, TRVs, pump and controls to spec.
Refill with inhibitor, purge air, and balance every radiator so heat is even top to bottom, front to back.
Boiler benchmarked, controls demonstrated, paperwork issued.
Balanced systems mean every radiator delivers its share — no cold corners, no clanging pipes.
Correct sizing, proper controls and clean water can cut fuel bills 15–25% versus a neglected system.
Magnetic filter, inhibitor and a clean fill protect your boiler warranty and its actual lifespan.
Split the house into sensible heating zones — no more heating a spare room to keep a bathroom warm.
We wire mainstream smart controls correctly — Nest, Hive, Vaillant vSMART — not a bodge.
Design, plumbing and gas all under one roof — no juggling trades.
Central heating is a system, not just a boiler. When any one component is wrong — sizing, controls, water quality, pipework — the whole house suffers.
Modern sealed systems (with expansion vessel and filling loop) are the norm on combi and system installs — less oxygen ingress, cleaner water, longer component life. Older open-vented systems (with a feed-and-expansion tank in the loft) still exist across West London stock and can be perfectly serviceable; we'll advise if converting to sealed makes sense during a boiler swap.
Radiators must be sized on heat loss, not on what looked right visually. We calculate room-by-room and match output. Style options include standard convectors, low-surface-temperature units for nurseries/bathrooms, and vertical designer radiators — all quoted with the correct BTU rating for the room.
A power flush uses a high-flow, low-pressure machine to physically shift sludge and debris from radiators and pipework. It's the right call on dirty systems or before a new boiler on an existing installation. Cleaner systems can be handled with a chemical clean plus magnetic filter. We assess water quality on the survey and quote accordingly.
A programmable thermostat plus TRVs on each radiator is the sensible minimum. For larger homes, we design zoned controls — upstairs/downstairs, or main house + extension — so you're not heating unused space. Smart controls are welcome, but only if wired to manufacturer spec.
Every system we install or upgrade gets a magnetic filter and fresh inhibitor. On dirty systems we also add a cleanser during the flush. This is non-optional — manufacturers void warranties on systems without correct water treatment.
Nothing here is generic — these are answers we give West London customers every week.
Ask us directlyA full system replacement on an average 3-bed home is typically 3–5 days. Simpler jobs — radiator swaps, controls upgrades, single-zone additions — are usually done in a day.
Where possible we route pipes through existing voids and take up minimum flooring. On upgrades in properties with solid floors, we'll discuss surface-mounted runs versus chased routes on the quote.
Not always. If your system water is clean, a chemical clean plus a magnetic filter is enough. If it's dirty, a power flush protects the new components and preserves the boiler warranty.
Yes. We install Nest, Hive and Vaillant vSMART correctly wired to your system. If you buy the unit, we'll install and commission it as part of the job.
Single radiator swaps are usually a half-day job. We give a fixed price per radiator after seeing the size, valve type and pipework.
We install wet underfloor heating as part of larger design & build and refurbishment projects — see the design & build page.
New boiler installations carry a 2-year manufacturer's guarantee. Radiator and system components carry the manufacturer's standard warranty period.
Yes. Annual boiler servicing and system checks keep everything running efficiently and warranties valid.
No pressure, no obligation. A Gas Safe engineer visits, scopes the job in person, and puts a written quote in your inbox — usually within 2–3 working days. For emergencies, call the line — it's answered 24/7 by the team, not a call centre.
Gas Safe registered · £2M insured · 30+ years in the trade · 24/7 emergency line
