London Boiler & Heating
Specialists — Fixed Price,
12-Month Guarantee.
Owner-led by Ian Fisher, with around three decades of hands-on trade experience. Boiler installation, servicing, repairs and full central heating across London and the Home Counties — done properly, first time.
- Free written estimates
- Same-day response available
- No call centre — speak to Ian
Boiler & heating work,
built on Gas Safe standards.
One point of contact — Ian Fisher — from the first phone call to the twelve-month follow-up. From new boiler installation in London to system powerflushing and landlord CP12 gas safety certificates. No sales staff, no subcontracted cowboys, no surprise bills.

Boiler Installation
New combi, system and regular boilers, sized to your property and fitted with a 7–10 year manufacturer warranty.
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Boiler Repairs
Diagnostic-first repairs on all major brands. Fixed-price where possible, out-of-hours cover available.
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Boiler Servicing
Annual services that keep your manufacturer warranty valid and catch faults before they become breakdowns.
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Gas Engineer
Independent Gas Safe engineer for cookers, hobs, gas fires, meter runs, tightness tests and leak investigation.
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Landlord CP12
Gas Safety Certificates for private landlords and letting agents — same-day PDF issue where access allows.
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Smart Controls
Nest, Hive, tado, Vaillant and Honeywell smart heating controls — wired, zoned and app-commissioned properly.
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Radiators
New radiator installation, replacement, TRV upgrades and relocation — sized to your room, balanced properly.
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Plumbing
Leak repair, taps and mixers, cold water tanks, isolation valves and refurb first-fix and second-fix plumbing.
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Drainage
Blocked sinks, baths, showers and toilets cleared. External chamber jetting and boiler condensate re-routes.
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Powerflushing
Chemical system flushing to remove sludge, restore radiator output and protect new boiler warranties.
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Central Heating
Full system design, installation and upgrades — boilers, radiators, controls, cylinders and pipework.
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Hot Water Cylinders
G3-qualified unvented and vented cylinder installation, servicing and repair. Megaflo, OSO, Gledhill and Telford.
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Bathrooms
Full bathroom installations and refurbishments — plumbing, heating and hot-water scoped as one job.
Learn moreA warm home, a compliant
property, no cowboys.
We built Chelsea Plumbing & Heating Co. around a simple standard: every job done as if it were in Ian's own home. That means proper diagnostics before parts, honest fixed prices before spanners, and a written 12-month guarantee on the workmanship after.
- Gas Safe registered — verifiable Reg. 952303
- Fixed-price repairs & installations available
- 12-month workmanship guarantee (parts & labour)
- 7–10 year manufacturer warranties on new boilers
- Out-of-hours cover for genuine emergencies
- Card or bank transfer — no VAT currently charged
Ian Fisher
From apprenticeship to running his own operation, Ian has spent many years in the trade — carrying ACS, Unvented Cylinders (G3) and City & Guilds / NVQ Level 3 qualifications. Every enquiry comes back to one engineer, not a call centre.
Mon–Fri 8–5
Genuine emergencies
Central London base,
Home Counties reach.
Based at 71–75 Shelton Street in Covent Garden, we cover Greater London and the surrounding counties for boiler and heating work.
View all service areasFour steps from
first call to guarantee.
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01Call or enquireTalk to Ian directly — 07801 550790 or our contact form.
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02Free estimateClear scope, fixed price where possible, no pressure.
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03Scheduled workBooked in, tidy site, Gas Safe sign-off on completion.
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0412-month guaranteeWorkmanship covered for a year. Warranty paperwork sent.
Straight answers,
before we start.
Something not covered here? Call Ian directly on 07801 550790.
Are you Gas Safe registered?
Yes. Chelsea Plumbing & Heating Co. is Gas Safe registered under number 952303. Every gas job is carried out and signed off by a Gas Safe engineer — you can verify us on the Gas Safe Register at any time.
What guarantee do you offer on your work?
All installations and repairs come with a 12-month workmanship guarantee covering parts and labour. New boiler installations also carry the manufacturer's warranty — typically 7 to 10 years depending on the model.
How much do you charge?
Our standard rate is £90 per hour, Monday to Friday, 8am to 5pm. Out-of-hours cover is £150 per hour. Fixed-price options are available for standard jobs and full installs so you know the number before we start. We are not currently VAT registered.
Which areas do you cover?
We cover Greater London and the surrounding Home Counties — including Kent, Surrey, Essex, Hertfordshire, Buckinghamshire, Berkshire, Bedfordshire, Middlesex and West Sussex.
Do you handle landlord gas safety certificates?
Yes. We issue Landlord Gas Safety Certificates (CP12) for private landlords and letting agents, usually same-day where access allows.
How do I get a quote?
Call 07801 550790 or send a message via our contact page. Estimates are free. For installations we'll arrange an estimate, either remotely or on-site depending on the job.
Is there a call-out fee?
No separate call-out fee — the standard hourly rate applies (£90 per hour Mon–Fri 8am–5pm, £150 per hour out of hours). Payment is by card or bank transfer.
Do you offer finance on boiler installations?
Not at present. Installations are paid by card or bank transfer against a written fixed-price estimate.
Who actually carries out the work?
Ian Fisher. Chelsea Plumbing & Heating Co. is an owner-operated business, so the engineer who quotes the job is the engineer who does it and returns under the guarantee.
Book a Gas Safe engineer
you can actually get hold of.
Free estimates. Fixed-price options. 12-month workmanship guarantee. One call goes straight to Ian.
² Prices are VAT-free while the company is not VAT registered; this may change in future. Chelsea Plumbing & Heating Co. is a newly-launched, owner-operated business — all work is carried out by Ian Fisher, Gas Safe Reg. 952303.
