Boiler installation in Northwood,for larger family homeswith warranties up to 10 years
Approved Worcester Bosch and Vaillant installers serving Northwood and Northwood Hills, close to our Harrow base.
20 years
trade experience
24/7
emergency cover in Northwood
£10m
public liability cover
Up to 10 yrs
boiler warranties
Local to Northwood
Heating and gas engineering in Northwood
Where we work in Northwood
We cover Northwood, Northwood Hills, Moor Park borders and the surrounding area, a short drive from Harrow via Pinner.
Getting to you
We work from Banner House, 29 Byron Road, Harrow, and cover Northwood as part of our regular North West London area. Our emergency service runs 24 hours a day, 7 days a week. When you call, we'll give you an honest arrival time for Northwood based on that day's bookings, rather than a promise we can't keep.
Homes in Northwood
Northwood has large interwar and Edwardian detached homes on wooded roads, along with semis in Northwood Hills and newer flats near the station.
Heating services for Northwood homes
Northwood homeowners often need high-output system boilers, unvented cylinders, smart zoned controls and annual servicing.
Services in Northwood
Everything your heating needs, available in Northwood
Boiler Installation in Northwood
Worcester Bosch and Vaillant approved installs with up to 10-year manufacturer warranties.
Bespoke quote after survey
Get a quote for boiler installation
Boiler Servicing in Northwood
Annual boiler service from £100 to keep your boiler safe, efficient and within warranty.
From £100
Get a quote for boiler servicing
Boiler Breakdown & Repair in Northwood
Fast diagnosis and repair to get your heating and hot water back on.
Get a quote for boiler breakdown & repair
Emergency Boiler Repair (24/7) in Northwood
Breakdowns and heating faults handled 24 hours a day, 7 days a week.
Get a quote for emergency boiler repair (24/7)
Landlord Gas Safety Certificate (CP12) in Northwood
Fixed-price CP12 certificates for landlords at £75.
£75
Get a quote for landlord gas safety certificate (cp12)
Heating Fault Finding in Northwood
Accurate diagnosis of cold radiators, pressure loss, noisy systems and control faults.
Get a quote for heating fault finding
Power Flushing & Radiator Installation in Northwood
Clear sludge from your system and add or replace radiators.
Get a quote for power flushing & radiator installation
Hot Water Cylinder Installation & Repair in Northwood
Unvented and vented cylinders installed, replaced and repaired.
Get a quote for hot water cylinder installation & repair
Heat Pump Installation & Servicing in Northwood
Air source heat pump installation and servicing across Hertfordshire and London.
Get a quote for heat pump installation & servicing
Underfloor Heating Installation & Maintenance in Northwood
Wet underfloor heating installed and maintained for even, comfortable warmth.
Get a quote for underfloor heating installation & maintenance
Smart Heating Controls in Northwood
Smart thermostats and controls to manage your heating from your phone.
Get a quote for smart heating controls
General Plumbing in Northwood
Leaks, taps, toilets, pipework and general plumbing repairs.
Get a quote for general plumbingWhy choose us in Northwood
Proof, not promises
J&L Gas & Renewables Limited brings 20 years of trade experience to homes in Northwood and across North West London. We're Gas Safe registered (number 961481), so you can check us on the Gas Safe Register before we arrive.
As approved installers for Worcester Bosch and Vaillant, we can offer manufacturer warranties of up to 10 years on new boilers fitted in Northwood. Copper pipework carries our 10-year guarantee, and every job is covered by £10 million public liability insurance.
CP12 certificates are £75, boiler servicing starts from £100, and a combined visit starts from £150. If anything isn't right after an installation, we commit to putting it right until you're fully satisfied.
Gas Safe registered
No. 961481
Approved installers
Worcester Bosch & Vaillant
24/7 service
Breakdowns in Northwood, day or night
£10m insured
Public liability cover
10-year guarantee
On copper pipework
Clear pricing
CP12 £75 · service from £100
Local issues
Common heating problems in Northwood homes
Large homes
Big detached houses need boilers and cylinders sized for multiple bathrooms.
Older heating systems
Original pipework and radiators may carry sludge into new boilers.
Hard water
Limescale affects boilers and cylinders across the area.
Leaves and gutters
Leafy roads mean blocked gutters can drip onto flues and condensate pipes; we check these at service.
Our process
How a job in Northwood works, step by step
01
Call or send the form
Tell us what you need and your postcode. You speak to us directly, any time of day.
02
Clear price
CP12 £75, servicing from £100 and combined visits from £150; a written quote after survey for installations.
03
Gas Safe engineer attends
A registered engineer arrives, inspects and diagnoses before any work starts.
04
Work & testing
We complete the job, then test for safe, correct operation of heating and hot water.
05
Handover & guarantee
We explain what was done, register warranties and fix any installation issue until you're satisfied.
Large Edwardian and interwar homes in Northwood often have heating systems that have been extended several times. Radiators may be undersized for rooms that have been opened up, and older pipework may restrict flow to the far end of the house. We assess the whole system before recommending a new boiler.
For homes with three or more bathrooms, a system boiler and unvented cylinder usually gives the best hot water performance. Zoned smart controls then let you heat only the areas in use.
Leafy roads bring blocked gutters and debris around flue terminals and condensate pipes. We check these during the annual service, which starts from £100.
Before you call, it helps to have your boiler's make and model, any fault code shown on the display and the pressure reading to hand. If you're a landlord, let us know how to arrange access with your tenant or agent. We'll explain the options and price before any work begins in Northwood, and payment is by bank transfer on invoice.
Plan ahead
A simple heating checklist for Northwood homeowners and landlords
Late summer: service the boiler
Book your annual boiler service before the heating goes on. Small faults found in September are far cheaper to fix than a breakdown in January, and the service record keeps your warranty valid. Servicing starts from £100.
Autumn: check radiators and controls
Turn the heating on early to check every radiator in your Northwood home heats evenly. Cold patches at the bottom point to sludge; cold at the top means air. Make sure timers and thermostats are set for winter routines.
All year: keep certificates current
Landlords with property in Northwood need a Landlord Gas Safety Certificate every 12 months. Diary the renewal date and book a combined certificate and boiler service from £150 to cover both in one visit.
Nearby areas
Also covering areas near Northwood
From our Harrow base we cover Northwood and the neighbouring towns across North West London and Hertfordshire.
See all areasBanner House, 29 Byron Road, Harrow, HA1 1JR
Questions
Northwood heating FAQs
Can't see your question? Call 07843 900760; our emergency heating service runs 24/7.
Do you serve Northwood?
Yes. J&L Gas & Renewables covers Northwood as part of our service area across North West London and Hertfordshire, working from our base at Banner House, 29 Byron Road, Harrow.
How fast can you reach Northwood?
It depends on the time of day and the jobs already booked. Call 07843 900760 and we'll give you a realistic arrival time for Northwood before you commit.
How much does a boiler service or gas safety certificate cost in Northwood?
Our published prices are as follows. A Landlord Gas Safety Certificate (CP12) is £75, a boiler service starts from £100, and the two combined start from £150. New boilers are quoted individually after a survey.
Do you offer emergency boiler repair in Northwood?
Yes. We run a 24/7 emergency service for boiler breakdowns and heating faults in Northwood. If you smell gas, call the National Gas Emergency Service on 0800 111 999 first.
Are your engineers Gas Safe registered?
Yes. We are Gas Safe registered (number 961481), and carry £10 million public liability cover on every job in Northwood.
How often should I service my boiler in Northwood?
Once a year, ideally before winter. Most manufacturers require an annual service by a Gas Safe registered engineer to keep the warranty valid, and it's the best way to avoid a breakdown in the coldest weeks.
Do you install heat pumps and underfloor heating in Northwood?
Yes. Alongside gas boilers, we install and service heat pumps and underfloor heating in Northwood. We assess your home first so you know whether a heat pump will keep it comfortable.
What warranty do I get on a new boiler in Northwood?
As approved installers for Worcester Bosch and Vaillant, we can offer manufacturer warranties of up to 10 years on new boilers. Copper pipework carries our 10-year guarantee.
Do you cover Northwood Hills?
Yes, along with Northwood and nearby areas.
Can you fit smart controls in a large Northwood home?
Yes, including zoned room-by-room control.
Need a gas engineer in Northwood?One call gets it sorted.
Gas Safe registered 961481 · 20 years' experience · £10m insured · 24/7 emergency heating service.