Boiler installation, repair & servicing
across Middlesex
Our Middlesex coverage runs from Harrow and Ruislip down through Uxbridge and Wembley. Same Gas Safe engineer, same fixed-price quoting, same 12-month workmanship guarantee wherever the postcode.
Local coverage
Genuinely local to Middlesex
Middlesex is a large area and no two postcodes are alike. We've built our Middlesex coverage carefully over decades, focusing on the parts we can genuinely respond to quickly from our WD19 base — the HA postcodes in particular, and the closer UB and TW areas by appointment.
Coverage in Middlesex
Regular coverage across HA0 (Wembley), HA1–HA3 (Harrow), HA4 (Ruislip and Eastcote), HA5 (Pinner and Hatch End), HA6 (Northwood), HA7 (Stanmore), HA8 (Edgware) and HA9 (Wembley Park). We can also cover selected UB (Uxbridge) and TW (Twickenham) jobs by appointment.
Property types we work on
Middlesex housing is one of the most varied in the UK — Metroland semis in Harrow and Pinner, Victorian terraces in Wembley, larger detached homes across Stanmore and Northwood, modern flats and new-builds around Wembley Park and Edgware. That means the right heating solution depends completely on the property, not on a template.
Response time to Middlesex
Response times vary by distance from our WD19 base — same-day on most Middlesex jobs. Active across the majority of HA, UB and TW postcodes in Middlesex.
Typical Middlesex jobs
Across Middlesex the common thread is that a lot of housing has had heating systems added, extended and part-modernised over many decades. Our typical Middlesex job is a boiler replacement paired with a system flush, a controls upgrade and a proper heat-loss check — not a like-for-like swap onto a tired system.
Services we offer in Middlesex
The full Premier Heating range is available across Middlesex — from same-week servicing to full boiler and cylinder replacements.
Boiler Replacement
A-rated combi, system or heat-only boilers fitted from £1,975 with flue, filter and full commissioning.
Learn moreBoiler Repair & Breakdowns
Fast, honest fault-finding on any brand. Fixed diagnostic pricing wherever possible — no surprises.
Learn moreBoiler Servicing
Full 27-point service from £75 with a written report. Keeps the manufacturer warranty valid.
Learn moreHeating Maintenance
Planned care for pumps, valves and controls so the system doesn't fail on the coldest weekend.
Learn moreRadiator Installation
New radiators, replacements and full system rebalances. Neat pipework, properly tested.
Learn moreEmergency Call-Outs
Out-of-hours support. Matt takes emergency calls directly, typically on-site within the hour.
Learn moreEfficiency Checks
Boiler and system health reports so you know if it's worth repairing, upgrading or replacing.
Learn moreSmart Controls
Tado°, Hive, Nest, Honeywell and Vaillant vSMART — installed, bonded and properly configured.
Learn morePowerflushing
From £550. Before-and-after water readings and a 12-month guarantee. Protects your new boiler.
Learn moreUnvented Cylinders
Mains-pressure hot water at every tap in the house.
Learn moreBathroom Installations
Full bathroom, en-suite and wet room installations — designed, plumbed, tiled and finished by one small team.
Learn moreUnderfloor Heating
Even, silent, low-temperature warmth under every square metre — designed, laid and commissioned properly, and zoned so every room heats to the temperature it should.
Learn moreWhy Middlesex customers choose Premier Heating
- Coverage across all HA postcodes and selected UB / TW areas by appointment.
- Gas Safe 212325 · Vaillant Accredited · G3 qualified for unvented systems.
- Full 10-year manufacturer warranty available on Vaillant installs.
- Written fixed-price quotes and 12-month workmanship guarantee, every job.
- £5m public liability. One engineer end-to-end.
Common heating issues we see in Middlesex
Every area has its own quirks — housing age, water pressure, pipework, layout. Here are the specific issues we come across most often across Middlesex and how we handle them.
Wide variation in mains water pressure
Mains pressure varies dramatically across Middlesex — high on parts of the Northwood ridge, marginal in pockets of Wembley and Harrow. We measure pressure at the property before recommending combi versus system boiler, rather than assuming.
Legacy back-boiler and gravity-primary systems
Some Middlesex properties still have the remains of back-boiler installs or gravity primary hot water. When these are replaced, disturbed sludge causes serious flow issues on the new system — a powerflush and correctly sized filter are essential.
Flat conversions with historic flue routing
The huge stock of flat conversions across Middlesex often has boiler flues routed to old horizontal terminations that no longer meet clearance rules. Any replacement we quote includes a flue audit and, where needed, a compliant re-route.
Portfolios of landlord properties needing coordinated CP12s
Middlesex is landlord country. We support portfolio landlords with coordinated CP12 gas safety certificates, servicing and reactive repairs across multiple properties — with one point of contact and clean digital paperwork.
How we work — every job, every postcode
The same clear process on every Middlesex job, whether it's a boiler service or a full system replacement.
- 01
Call or enquire
Speak directly with Matt — no gatekeepers, no scripts.
- 02
Free on-site quote
Fixed price emailed the same day, 24 hours at the latest.
- 03
Book the work
Card, cash or bank transfer. No deposit on most jobs.
- 04
Job done, warrantied
12-month workmanship guarantee. Up to 10-year manufacturer warranty on boilers.
Middlesex — frequently asked questions
Which Middlesex areas do you actually cover?
Regular coverage across HA0–HA9 (Wembley, Harrow, Ruislip, Pinner, Northwood, Stanmore, Edgware). Selected UB (Uxbridge) and TW (Twickenham) postcodes by appointment. If in doubt, please call and ask.
How much does a new boiler cost in Middlesex?
Combi swaps start at £1,975 fitted. System and heat-only boilers are quoted individually. Every quote is fixed price before we start.
How much is boiler servicing across Middlesex?
£75 for a standard boiler service with a full written report. £70 for a landlord CP12 gas safety certificate.
Do you handle landlord portfolios across Middlesex?
Yes — we work with a number of Middlesex landlords across multiple properties. One point of contact, coordinated CP12s and clean digital paperwork.
How fast can you respond to an emergency in Middlesex?
Response time depends on which HA postcode you're in. For closer areas (HA5, HA6, HA7, HA8) we aim for within the hour on emergencies. Slightly longer to HA0 or HA9 depending on traffic.
Are you Gas Safe registered?
Yes — Gas Safe registration 212325, held personally by Matt Winn, ex-British Gas trained with 38+ years' gas experience.
Do you install unvented cylinders across Middlesex?
Yes — we're G3 qualified and install Vaillant, Megaflo and Telford unvented cylinders regularly across the larger Middlesex properties.
What guarantee do you offer?
12-month workmanship guarantee in writing on every job, plus up to 10 years' manufacturer warranty on Vaillant boilers as an Accredited Installer.
Nearby areas we cover
Just outside Middlesex? We cover the surrounding postcodes too — same engineer, same pricing, same guarantee.
Not sure if we cover you? Get in touch or call 07870 210610.
Local, Gas Safe boiler help in Middlesex — one call away.
Fixed pricing where possible. 12-month workmanship guarantee. No call-out fee. Matt answers the phone personally.