Which? Trusted Trader — independently vetted & approvedUpgrade to an efficient A-rated boiler with a free site survey and honest advice on what actually suits your home — from a Vaillant Advanced Installer and Worcester Bosch Accredited business.
Based in Brentford TW8 — fast response across West London.
Tell us about your home and book a free, no-obligation survey online — we'll follow up with a fixed written quote for your new A-rated boiler. Quick, easy and no pressure.
Every home is different. We survey your property for free, talk through how you use your heating and hot water, and recommend the boiler that genuinely fits — whether that's Vaillant, Worcester Bosch, Baxi, Main or Potterton.
Your new boiler is installed to current Gas Safe regulations, commissioned and registered, with the system flushed and inhibitor added so your warranty is valid from day one.
Real installations across West London, photographed on the job.
That covers the boiler, the flue, a boiler protection kit, a Hive smart thermostat and professional installation by a Gas Safe registered engineer. Your survey is free, the written quote is fixed, and there is no obligation at any point.
The final figure depends on the boiler your home needs and the work involved. We confirm it at a free survey before you commit to anything.
Not a headline figure with the real cost bolted on afterwards. Every installation covers all of the following.
We would rather tell you this now than surprise you on the day. The things that most often change a price are moving the boiler to a different wall or room, converting from a cylinder system to a combi, an unusual or extended flue run, scaffolding where the flue is high up, and upgrading a gas supply pipe that is too small for the new boiler. Every one of those is priced and agreed in writing before we start, and your survey is free either way.
Most people replace like for like, and often that is the right answer. Sometimes it is not. Here is the honest difference between the three, so the conversation at your survey makes sense.
Heats water on demand straight from the mains, so there is no hot water cylinder and no tanks in the loft. It frees up a cupboard and you never run out of hot water, but it serves one outlet well at a time. The usual choice for homes with one bathroom.
Works with a hot water cylinder, so a good volume of hot water is stored and ready. Better suited to homes where two showers might run at once, or where mains pressure is not strong enough for a combi to perform well.
The traditional setup: a cylinder plus a cold tank in the loft. Common in older and larger West London properties. Where the existing system is sound and sized correctly, replacing like for like is often cheaper and less disruptive than converting.
Boiler size is measured in kilowatts, and bigger is not better. An oversized boiler cycles on and off more than it should, which wastes gas and wears the parts out faster. An undersized one leaves you short on a cold morning.
As a rough starting point for combi boilers:
That is a starting point and not a quote. The right size depends on how many radiators you have, your mains water pressure and flow rate, how well the house holds heat, and how your household actually uses hot water. We measure all of it at the survey, which is free and carries no obligation.
Tell us about your home below and pick a time for a free survey. It goes straight into our diary and you will get a fixed written quote afterwards. No obligation, no pressure, and no one will chase you.
Prefer to talk it through? Call 020 3355 0998 or WhatsApp 07377 861815. We are on the phones 8am to 5.30pm, Monday to Friday.
Combi, system or regular; the right output for your rads and hot-water demand; the best flue route — it all matters, and getting it wrong means a boiler that short-cycles or can't keep up. We survey your home for free, ask how you actually live, and recommend what genuinely fits, whether that's Vaillant, Worcester Bosch, Baxi, Main or Potterton.
A new boiler is only as good as the system it sits on. We flush the system, fit a magnetic filter, add inhibitor, and install to current Gas Safe standards — then commission, register the warranty and hand over the paperwork. That's what keeps the manufacturer guarantee valid from day one.
In a hard-water area like West London, a magnetic filter and an annual service protect your investment, and a water softener keeps limescale off the heat exchanger for the long haul. Small measures, but they're the difference between a boiler that lasts and one that struggles.
It couldn't be simpler. Request a quote online in a couple of minutes, and we'll book a free survey at a time that suits you. We look at your home, your heating and hot-water needs and your budget, then send you a clear, fixed written quote — no hidden extras and no hard sell. If you're happy, we book you in; if not, there's absolutely no obligation.
We're Gas Safe registered, a Which? Trusted Trader, and accredited installers for Vaillant and Worcester Bosch — which means we can offer extended manufacturer warranties of up to 10 years on selected boilers. Every installation is done to current regulations, flushed and protected, and left clean and tidy. And because we're a local Brentford business rated five stars by our customers, our reputation depends on getting your job right.
Book your free survey online and we'll send a fixed, no-obligation quote — A-rated Vaillant and Worcester Bosch boilers, fitted properly and guaranteed.
A straightforward swap usually takes one day. A conversion or relocation typically takes two to three days. We'll confirm the timescale in your free survey.
We install A-rated boilers from Vaillant, Worcester Bosch, Main, Baxi and Potterton. As an accredited installer we can offer extended manufacturer warranties on selected models.
If your boiler is under 10 years old and the fault is minor, repair usually makes sense. Older boilers needing major parts are often better replaced. We give an honest recommendation either way, and the survey is free.
A straight swap is usually a day; a conversion or a move takes two to three. We confirm the timescale at your free survey so there are no surprises.
Yes — removal and responsible disposal of the old boiler is included as standard.
It depends on the boiler you need, your home and the work involved, so we don't quote blind. We give you a free survey and a fixed written quote with no hidden extras — request one online and you'll know exactly where you stand, with no obligation.
We're accredited installers for both Vaillant and Worcester Bosch and fit Baxi, Main and Potterton too. Rather than push one brand, we recommend what genuinely suits your home and budget at the survey — and on selected models we can offer extended warranties of up to 10 years.
Often within a few days of your survey. If you're without heating or hot water we'll prioritise you, and we'll always give you a firm date at the point of quoting.
Real reviews from verified customers across West London.
"Chris made an excellent job of fitting a new heated towel rail. Punctual, clean and efficient, and didn't charge more than he quoted. It makes such a nice change to recommend someone so highly!"
Heated Towel RailVerified customer review · W4"I have used Silverdale a few times before. They are responsive, very good communicators, book the work promptly and do a good job. Highly recommend."
Kitchen Pipes & DishwasherVerified customer review · NW3"Arrived in short order, identified the problem and the repair was done in less than two hours."
Emergency Boiler RepairVerified customer review · W12