Gas Safe new boiler installation in Harrow
Boiler Install Harrow
New boiler installation, boiler replacement and combi conversion quotes across Harrow, Pinner, Ruislip, Northwood, Stanmore, Bushey and nearby areas. Get a clear fixed quote before work starts.
New boiler installation includes
- Combi, system and regular boilers
- Replacement boilers and conversions
- Flue, controls and system protection options
- Manufacturer warranty options up to 10 years
Gas Safe registered
Fixed quote first
From £1,200
Harrow and nearby areas
New boiler installation in Harrow
Harrow Heating installs replacement gas boilers for homes across Harrow and nearby north-west London areas. We help you choose the right boiler type and output for your property, then provide a clear quote for the appliance, labour and required installation materials.
Whether you are replacing an old combi boiler, upgrading from a regular boiler, or considering a move to a new boiler location, the quote process captures the key details engineers need before recommending the right installation route.
Boiler installation prices
| Installation item | Guide price |
|---|---|
| Like-for-like boiler replacement | From £1,200 |
| Combi conversion or boiler relocation | Quoted after details |
| Controls, filter, flue or extras | Shown in your quote |
Final price depends on boiler model, warranty, property type, flue route, controls, pipework, access and whether system cleaning or upgrades are needed.
Boiler installation options
Combi boiler replacement
Straightforward replacement for many Harrow homes where heating and hot water are supplied by a combi boiler.
System boiler installation
Suitable for homes with a hot water cylinder or higher hot-water demand from multiple bathrooms.
Regular boiler replacement
Replacement options for conventional systems with tanks and a cylinder, subject to property setup.
Combi conversion
Convert from a regular or system boiler to a combi where the property and hot-water needs make sense.
Boiler relocation
Move a boiler to a kitchen, utility room, garage or airing cupboard when pipework and flue requirements allow.
Controls and protection
Add smart controls, magnetic filters, scale protection and system cleaning where needed for long-term reliability.
Our boiler install process
A clear route from online quote to fitted, tested boiler.
Quote
Share postcode and boiler details.
Confirm
Review boiler and install scope.
Install
Gas Safe engineer fits the boiler.
Register
Commissioning and warranty steps.
Areas covered from Harrow
We install boilers across HA postcodes and nearby north-west London areas:
- Harrow
- Harrow on the Hill
- North Harrow
- South Harrow
- Wealdstone
- Harrow Weald
- Pinner
- Ruislip
- Northwood
- Stanmore
- Edgware
- Bushey
- Watford
Why choose Harrow Heating?
- Gas Safe registered boiler installers
- Local Harrow coverage and practical appointment windows
- Clear quote before installation starts
- Advice on boiler type, output, flue and controls
- Related support for annual servicing and boiler repairs
Reviews - experience that matters
Thorough service and friendly engineer
They are a company you can trust. They are quick at coming to sort a problem out. My recent experience of two engineers couldn't be better, I felt safe after they left.They were both polite,friendly gave full explanation of work carried out, both what I call "old school engineers", an asset to Harrow Heating. - Martin Devine
Posted today (June 27, 2026)
Harrow Heating top notch
The engineer arrived well within the allocated time scale. He checked the location of the jobs and got on with the installation of the new boiler. I find Harrow Heating trustworthy and efficient. I have always been very satisfied with the service I have received. I would have no reservations about recommending them. - Nick Child
Posted about 3 days ago (June 24, 2026)
Great Service
More than usual the engineer was friendly, straightforward, thorough and clearly very skilled and experienced at his job. Used Harrow Heating for few years, always find them reliable, knowledgeable and value for money. Engineers are highly competent and explain everything, feel safe, our boiler is kept in top condition. - claire
Posted about 7 days ago (June 20, 2026)
Annual boiler service, great experience
The engineer contacted me to let me know he was on his way, he was on time. He was respectful of my home using shoe covers to protect my carpets. He was thorough and explained what he was doing and overall was polite and professional. - Alan Grant
Posted about 13 days ago (June 14, 2026)
Highly recommend
Following an annual service from Harrow Heating, a couple of faults with my boiler were identified. A second visit was scheduled just 2 days later to resolve the issues. The engineer was polite and professional, explained the work that was necessary and was finished within the hour. Highly satisfied with the service. - Carol
Posted about 18 days ago (June 09, 2026)
well done
We are loyal customers of Harrow Heating for nearly 3 years for our residential as well as rental properties. Now even our children are with them. Harrow Heating has never let us down. Their engineers are very knowledgeable, polite, patient and helpful. Keep up the good work. Well done - Mutaher K
Posted about 19 days ago (June 08, 2026)
Pleased with service.
Pleased with the service. Engineer was polite and didn't try to sell me anything I didn't want. - Mr Speirs
Posted about 23 days ago (June 04, 2026)
Good and quick response.
The engineer arrived promptly, was courteous and friendly. Worked extremely quickly and efficiently and explained very carefully the problem with our old gas fire. - Alice
Posted about 27 days ago (May 31, 2026)
Very professional engineer for annual service.
Arrived promptly at the agreed time. He was professional throughout the visit. Spoke to me obout a service called HIVE. No pressure was applied but did arrange for me to receive information about the service which I received after a few days. - Derick Tait
Posted about a month ago (May 28, 2026)
Excellent customer focus.
Good all round service - really good contact- engineers knowledge excellent - -Mrs Kane
Posted about a month ago (May 22, 2026)Boiler install Harrow FAQs
Get a boiler install quote in Harrow
Start online or call 075700 54100 to discuss your replacement boiler.