Vaillant & Viessmann Approved Installers

New Boiler.
Fitted Properly.
First Time.

Supplying and fitting new boilers, full system replacements and upgrades across North London. Every installation comes with a minimum 5-year guarantee — and an engineer who actually cares about the finish.

Min. 5-Year Guarantee
Gas Safe Registered
Building Regs Cert Included
Most Jobs Done in One Day
Manufacturer specialists

We'll get the right boiler in — and get it right.

Whether your old boiler has finally given up, you're upgrading to a more efficient system, or you're fitting out a new property — we'll survey, specify, supply and fit. Our engineers treat every installation as if it were their own home: neat pipework, tidy finish, everything commissioned and documented properly.

We supply and install boilers and heating systems with as little fuss as possible. We won't try to upsell you a boiler you don't need — we'll ask the right questions first and recommend what genuinely suits your property and budget.

N4 Gas engineer fitting a new boiler
New boiler installation
Neat pipework installation
Neat pipework finish
Boiler system commissioning
Full system commissioning

What's included in every installation

Free home survey
Supply & fit new boiler
Full system flush
Inhibitor treatment
Building Regs cert
Gas Safe sign-off
Warranty registration
Full system test
Full controls handover
Min. 5-yr guarantee
Old boiler removal
Site left clean & tidy

Not sure which type you need?

We'll advise you on the right boiler type during the free survey. Here's a quick guide to help you get started.

Combi boiler installation
Simple

Combi Boiler

Compact, no cylinder needed. Heating and instant, mains poressurised hot water that never runs out as it's "on demand". Ideal for flats and smaller homes with only one bathroom.

1–2 bathrooms Space saving Instant hot water
System boiler installation

System/Heat only Boilers

Work in conjunction with a hot water cylinder. Great for homes with multiple bathrooms and a higher demand, cylinders available in both mains pressure (Unvented) or at a lower, more traditional pressure.

2+ bathrooms Stored hot water Faster flow rate
Heat-only boiler installation

Renewables

Zero Carbon at their point of use and the ability to be over 350% efficient. Government grants available. Mains pressure hot water and an "always on" approach to heating.

No gas Various home types

Quality you can rely on.

We fit the manufacturers we trust most. Here's why these two lead our recommendations.

Our Preferred Brand

The boiler we recommend most.

Vaillant has been making heating appliances since 1874 — and it shows. Their ecoTEC range is consistently one of the most reliable, efficient and well-supported boiler lines on the UK market. Parts are widely available, the manufacturer's support network is excellent, and their extended warranties are among the best in the industry.

We fit more Vaillant boilers than any other brand, and our engineers know them inside out. When a Vaillant goes in, it goes in right — and it stays right.

Standard 7-yr warranty (10-yr upgradeable) ErP A-rated efficiency ecoTEC range Excellent spares availability

Premium German engineering.

Viessmann Vitodens boilers are built to a standard that justifies every penny of their price. Stainless steel heat exchangers, exceptionally low emissions and industry-leading modulation ranges make them the right choice for larger or more demanding properties where performance matters most.

We recommend Viessmann where the specification calls for it — bigger homes, high hot water demand, or clients who simply want the absolute best. The Vitodens 200-W remains one of the finest condensing boilers available in the UK.

Standard 10-yr warranty Stainless steel heat exchanger Vitodens range Ultra-low emissions

From quote to warm home — here's how it works.

1
Free survey

We visit, assess your system and property, and give you a clear fixed quote — no charge, no obligation.

2
Choose your boiler

We'll recommend the right unit — you make the call. We're happy to fit your own supply too.

3
Installation day

We arrive on time, work cleanly and neatly. Most jobs are fully completed in a single day.

4
Sign-off

Gas Safe cert, Building Regs certificate and warranty registered — all sorted before we leave.

5
Ongoing support

Annual service reminders, spare parts help, honest advice — we're always a call away.

Compliance built in.

If you're fitting out a rental property or managing a portfolio, we make the gas side of compliance straightforward. Every installation is certificated and documented properly from day one.

Building Regulations cert

Included with every installation. Automatically notified to Building Control via Gas Safe Register.

Gas Safe inspection

Every installation signed off by a registered engineer. Documentation issued the same day.

Portfolio management

Multiple properties? We coordinate across your portfolio and keep all documentation in order.

Common questions

Most like-for-like boiler replacements are done in a single day. More involved work — converting from heat-only to combi, moving the boiler location, or adding radiators — may take two days. We'll give you a realistic timescale in the free survey, with no surprises on the day.

Reliability, parts availability and warranty support. A boiler is only as good as the backup behind it, and Vaillant's network of parts and technical support is consistently excellent. We fit more Vaillants than anything else because in our experience they cause the fewest callbacks. That said, we'll always recommend the right boiler for your specific situation — sometimes that's a Viessmann, Ideal or another brand entirely.

Every installation comes with a minimum 5-year guarantee as standard. Depending on the manufacturer and model, this can extend to 10 or even 12 years. We register the warranty on your behalf on installation day — and we'll remind you when it needs an annual service to keep it valid.

No — Unfortunately we are not able to offer installations of client provided appliances. Due to complexities with warranties and help prevent the installation of stolen units, we no longer offer installation of client supplied units. We may consider specialist installations on a case by case basis.

We'll always give you our honest view. A rough rule of thumb: if your boiler is over 12–15 years old and the repair cost exceeds half the price of a new unit, replacement usually makes better financial sense. We're not in the business of selling you a boiler you don't need — if a repair is the right call, we'll say so.

Yes — removal and responsible disposal of your old boiler is included as standard. We leave the site clean and tidy. If you're converting system types or moving the boiler location, we'll agree all the work upfront so there are no surprises.

Ready for a new boiler?

Call us for a free survey and fixed-price quote. Most new boilers installed within the week.

We're open — Mon–Fri 8:30am to 4:30pm Call us, email us or browse our services. Out of hours, emergency cover is available for genuine urgent faults — no heating, gas leaks and similar.
0208 050 4729