Plumbing & Heating
Specialists Across London
Owner-operated from Covent Garden (WC2), Ian Fisher covers every London postcode — from Georgian townhouses in Chelsea and Kensington to converted warehouses in Shoreditch and new-build blocks in Nine Elms. Gas Safe Register 952303, ACS, G3 Unvented and NVQ Level 3.
Working in London,
not just passing through.
Chelsea Plumbing & Heating Co. is based in Covent Garden (WC2H) — genuinely central. That means the engineer actually travels from a London base, not from the M25 with a London phone number. When you call for a leak, a broken boiler, or a scheduled installation across London, one person picks up: Ian Fisher, the owning engineer.
London properties are unusually varied. A five-storey Georgian in Marylebone, a lateral conversion in Notting Hill, a garden flat in Clapham and a 40th-floor apartment in Vauxhall each need a different approach to flueing, pressure, gas routing and system design. Years in the London trade mean we have seen and specified every combination — and know which building managers, freeholders and managing agents need to be looped in before work starts.
We work directly with homeowners, landlords, letting agents and — case-by-case — small commercial premises across all 32 boroughs and the City of London. There is no call centre and no dispatcher — Ian carries out or personally supervises the work, and issues the paperwork.
Every service we offer
is available in London.
Boiler Installation
New combi, system and regular boilers, sized to your property and fitted with a 7–10 year manufacturer warranty.
View service
Boiler Repairs
Diagnostic-first repairs on all major brands. Fixed-price where possible, out-of-hours cover available.
View service
Boiler Servicing
Annual services that keep your manufacturer warranty valid and catch faults before they become breakdowns.
View service
Gas Engineer
Independent Gas Safe engineer for cookers, hobs, gas fires, meter runs, tightness tests and leak investigation.
View service
Landlord CP12
Gas Safety Certificates for private landlords and letting agents — same-day PDF issue where access allows.
View service
Smart Controls
Nest, Hive, tado, Vaillant and Honeywell smart heating controls — wired, zoned and app-commissioned properly.
View service
Radiators
New radiator installation, replacement, TRV upgrades and relocation — sized to your room, balanced properly.
View service
Plumbing
Leak repair, taps and mixers, cold water tanks, isolation valves and refurb first-fix and second-fix plumbing.
View service
Drainage
Blocked sinks, baths, showers and toilets cleared. External chamber jetting and boiler condensate re-routes.
View service
Powerflushing
Chemical system flushing to remove sludge, restore radiator output and protect new boiler warranties.
View service
Central Heating
Full system design, installation and upgrades — boilers, radiators, controls, cylinders and pipework.
View service
Hot Water Cylinders
G3-qualified unvented and vented cylinder installation, servicing and repair. Megaflo, OSO, Gledhill and Telford.
View service
Bathrooms
Full bathroom installations and refurbishments — plumbing, heating and hot-water scoped as one job.
View serviceConcrete reasons,
not sales patter.
Every point below is verifiable. Gas Safe number, qualifications and guarantee terms are all published on your certificate and estimate.
Central London base (Covent Garden) means genuinely fast response times across Zones 1–3.
Extensive London trade experience across mansion blocks, conversions and new builds.
Gas Safe registered (952303), ACS qualified, G3 Unvented certified and NVQ Level 3 qualified.
One point of contact from first call to twelve-month follow-up — no subcontractors on your job.
Fixed-price estimates in writing, no VAT currently, card and bank transfer accepted.
What we see
most often in London.
London properties suffer a distinctive set of heating and plumbing issues driven by age, density and water quality.
Sludge in Victorian and Edwardian systems
Older cast-iron radiators and small-bore steel pipework across Islington, Hackney, Camden, Wandsworth and Lambeth accumulate magnetite sludge. Symptoms are cold radiator bottoms, boiler kettling and short-cycling. A chemical powerflush plus a magnetic filter almost always restores full output — and protects any new boiler warranty.
Combi swaps in flats with tight service cupboards
Purpose-built and converted flats — especially in Pimlico, Marylebone, Fulham and Bow — often have boilers boxed into airing cupboards with awkward flue runs to communal risers. Getting a legal, serviceable install right needs on-site measurement, not a phone quote.
High mains pressure and unvented cylinders
West London and parts of South-West London see mains pressures above 4 bar. Unvented cylinders here need correctly rated pressure-reducing valves and expansion vessels — G3 territory — or they'll dump water through the tundish and fail early.
Landlord CP12 turnover for HMOs
Multi-let houses across Zone 2 postcodes need annual Landlord Gas Safety Records for every gas appliance. We issue CP12s the same day, digitally, and flag anything that needs remedial work before the next let starts.
Freeholder / managing-agent approvals
Boiler moves, flue changes and stopcock replacements in leasehold blocks (especially prime central) often need written managing-agent consent. We provide the manufacturer data, Gas Safe number and method statement they ask for.
The same methodical process,
wherever we work.
-
01Call or enquireIan answers the phone directly and takes the fault, property type and address.
-
02On-site assessmentA booked visit to your London property to measure, test and specify properly.
-
03Written estimateFixed-price options in writing before any work begins. No pressure, no upsell.
-
04Scheduled worksBooked at your convenience. Same engineer arrives, tidies as he goes and commissions on completion.
-
0512-month follow-upWorkmanship guaranteed for 12 months, with a diarised follow-up service.
Do you serve all London postcodes?
Yes — every London postcode from EC1 to SE28, N1 to NW11, W1 to W14, and everything in between. Central postcodes (W1, WC, EC, SW1, NW1) are our fastest response areas.
How quickly can you reach a job in London?
Central London (Zones 1–2) is typically same-day or next-day for urgent boiler faults; Zones 3–6 within 48 hours. Scheduled installs and services are booked at your convenience.
What does a boiler installation typically cost in London?
Boiler installations in London are quoted in writing after an on-site assessment — we don't give phone-quote figures because the flue route, gas-supply size, controls, filter and cylinder work all affect price. Labour is charged at £90/hr Mon–Fri 8am–5pm on hourly work and £150/hr out-of-hours; installations are usually a fixed price against the written estimate. No VAT is currently charged.
Do you offer emergency call-outs in London?
Yes — out-of-hours cover is available in London, charged at £150/hr. For genuine emergencies (gas leaks, no heat with vulnerable occupants) call 07801 550790 directly and Ian will advise on response time.
Do you provide a written estimate before starting work in London?
Always. For installations and larger jobs we assess on site, then send a written fixed-price estimate. Nothing starts until you've accepted it in writing.
Is the work guaranteed in London?
Yes. Every job carries a 12-month workmanship guarantee. On new boiler installations, manufacturer warranties are typically 7–10 years, subject to annual servicing.
Are you Gas Safe registered?
Yes — Gas Safe Register number 952303. Every gas job in London is carried out and certified by a registered engineer, and our number appears on every certificate.
Do you subcontract work in London?
No. Ian Fisher, the owner, personally carries out or supervises every job in London. One point of contact from first call to twelve-month follow-up.
Which payment methods do you accept?
Bank transfer and card payments are both accepted for jobs in London. No VAT is currently charged.
Fixed price. Gas Safe.
12-month guarantee.
Free estimates from Ian directly across London — no call centre, no subcontractors, no surprise bills. Same engineer from first call to twelve-month follow-up.