247 Rapid Response
4.5 · 510 reviews
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247 Rapid Response emergency boiler installation engineer in Merton, London

Local coverage

New Boiler Installation in Merton

A calm, fast response from directly-employed, Gas Safe registered engineers across Merton, typically on site in 30 to 60 minutes for your free boiler survey. From Edwardian villas in Wimbledon Village to the 1930s semis of Raynes Park and Morden, we fit Worcester Bosch, Vaillant, Ideal Logic, and Viessmann boilers suited to your home and Merton's hard water supply.

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30-60 mins response12-month guaranteeGas Safe Registered
30-60 MINResponse time
12 MOWorkmanship guarantee
FULLYInsured & accredited
24/7365 days a year

Why Merton customers choose 247 Rapid Response

Edwardian villas in Wimbledon Village, 1930s semis across Raynes Park and Morden, Victorian terraces in Colliers Wood, ex-council in Mitcham.

  • 30-60 mins typical on-site time across Merton. Live dispatch, not a queue. We cover Wimbledon, Mitcham, Morden, Colliers Wood, Raynes Park, Wimbledon Park every hour of every day.
  • Directly-employed engineers, not subcontractors. The same names you would recognise from our reviews, on payroll, accountable to us, trained by us.
  • Gas Safe Registered. Verifiable on the public Gas Safe Register before our engineer walks in.
  • Thames Water / SES Water, hard. Our engineers know the supply quirks of every Merton postcode and factor them into every diagnosis.
  • Fully insured, 12-month workmanship guarantee. Same standard on a £150 leak repair as a £35,000 bathroom refit.
  • Companies House registered (#14505329). A real London limited company with a paper trail, not a switchboard farming jobs out.
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Local insights

Boiler installation in Merton: the local picture.

Merton boiler installation runs across SW19, SW20, CR4, and SM4, taking in Edwardian villas in Wimbledon Village, 1930s semis across Raynes Park and Morden, Victorian terraces in Colliers Wood, and ex-council stock in Mitcham. The Wimbledon Village conservation area pushes period-appropriate fixtures and pipework finishes, and the larger family-house spec across SW20 makes system boiler installs a routine brief. Sizing: 24 to 30 kW Vaillant ecoTEC plus or Worcester Bosch Greenstar 4000 combi for a Colliers Wood or Mitcham flat; 30 to 35 kW for a typical three-bed Raynes Park semi; and a Worcester 8000 Life system boiler with a 180 to 210L Megaflo cylinder for larger Wimbledon Village villas serving multiple bathrooms.

Water across Merton is Thames Water and SES Water and hard, so every install gets a BS 7593 inhibitor dose of Sentinel X100 or Fernox F1 and an Adey MagnaClean Pro2 or Fernox TF1 Omega magnetic filter on the return. Building Regulations Part L makes the install notifiable; Gas Safe lodges within 30 days and the building-control certificate is emailed inside 14 days.

BS 5440 flue clearances (300 mm from opening windows, 600 mm from boundary or facing wall, 2.1 m above pedestrian paving) are mostly easy on Merton's larger Wimbledon plots, but Colliers Wood and Morden terraces can need Part J fire-rated ducting where flues route through party walls. Combi installs across Merton start from £1,800 and system boilers with a Megaflo cylinder start from £4,500. Worcester Bosch Greenstar 4000 and 8000 Life and Vaillant ecoTEC plus and exclusive ranges carry 10 to 12 years' manufacturer warranty when an accredited installer registers them, with our 12-month workmanship guarantee on top. Survey to install runs one to two weeks for combi swaps and two to three weeks for system upgrades; full back-boiler removals on Wimbledon Park stock typically take three days on site.

Local jobs

Common boiler installer jobs in Merton

Boiler replacements in Merton are usually driven by property age and pipework realities, here's the spread of installs we deliver in this borough.

  • Like-for-like Worcester Greenstar combi swaps in 2-bed flats
  • Combi-to-system upgrades for two-bathroom family conversions
  • Vaillant ecoTEC plus installs with hard-water scale management
  • Viessmann Vitodens for prime-market refurbishments
  • Flue relocation jobs through conservation-area rear elevations
  • Communal boiler replacements coordinated with managing agents

Wimbledon Village conservation area, period-appropriate fixtures. Larger family-house heating spec across SW20.

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30 to 60 minute response across every London borough. Gas Safe registered. 12-month workmanship guarantee.

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Postcode coverage

Every Merton postcode covered

Our Merton dispatch covers the following postcodes 24 hours a day. If you are in Merton and your postcode is not listed, call us, we still cover the area.

  • SW19Covered 24/7 across Merton
  • SW20Covered 24/7 across Merton
  • CR4Covered 24/7 across Merton
  • SM4Covered 24/7 across Merton

Full London coverage map →

Pricing in Merton

What you'll pay

No surprise pricing. Same fixed structure across every Merton postcode, every hour of the day.

Time bandHoursRate / 30 min
DaytimeMon–Fri 8am to 6pm£75 / 30 min
EveningMon–Fri 6–11pm, weekend daytime£99 / 30 min
Nighttime11pm to 8am, plus weekend nights & bank holidays£147 / 30 min

One flat rate across London and the M25, shown inc VAT. No callout fee – you pay only for the labour at the rate for the time of day, plus any materials.

  • Minimum 1 hour labour, then 30-minute increments after.
  • No hidden extras: no parking, fuel, ULEZ or Congestion Charge surcharges added on.
  • Materials at trade cost plus 30%: fully itemised on every invoice with supplier reference.
  • 12-month workmanship guarantee on every boiler installer job in Merton.
  • Fixed-price quote available on most jobs after on-site diagnosis.

Full pricing including fixed-fee jobs →

FAQ

Boiler installation in Merton: your questions

What size boiler should I install in Merton?
Merton property stock runs to Edwardian villas in Wimbledon Village, 1930s semis across Raynes Park and Morden, Victorian terraces in Colliers Wood, ex-council in Mitcham, which drives the kW size we recommend. For a typical Merton install: 24 kW combi for 1 to 2 bed flats, 30 to 35 kW combi for 3 bed terraced and semi-detached houses, system boiler with 180 to 210L unvented Megaflo cylinder loft-mounted for 4+ bed 1930s semis (the most common upgrade we do). We size on a 35 kW per litre per minute flow demand calculation, accounting for simultaneous bathroom-and-kitchen draw in family terraces, and the hard water in Merton (Thames Water / SES Water, hard). We survey before quoting, we don't size off the existing badge.
Do I need building regulations approval for a Merton boiler install?
Every boiler install in Merton is a Building Regs Part L notifiable work and we notify Gas Safe (which auto-notifies your local authority) within 30 days of the install. Flue clearances follow BS 5440: 300 mm minimum from any opening window, 600 mm from a boundary or facing wall, and 2.1 m above a paving level for a pedestrian flue. 1930s semi-detached houses across Merton typically have a sensible external wall flue exit through the side return or rear elevation, well clear of the BS 5440 minimum 300 mm from any opening window, 600 mm from a boundary, and 75 mm from a corner. Building control sign-off and Gas Safe certificate are emailed to you within 14 days. CP12 / LGSR landlord certificate available at install for £125 (Merton accepts our certs directly).
Which boiler brands do you install most in Merton?
Across Merton we most commonly fit Worcester Greenstar 4000, Vaillant ecoTEC plus, and Worcester Greenstar CDi system boilers. Worcester Greenstar 4000 with a 10-year warranty hits the price-vs-warranty sweet spot for Merton standard installs, and Vaillant ecoTEC plus or ecoTEC pro for HMO conversions where landlord parts availability matters. We are a Worcester Bosch Accredited Installer and a Vaillant Advance Installer, which means the full manufacturer warranty (typically 10 to 12 years) is registered at install, not the standard 2-year warranty unaccredited fitters get. We can install other brands (Ideal, Baxi, Viessmann, Glow-worm) on request if you have a preference or a service contract with a specific brand.
What does a boiler installation cost in Merton?
Merton sits in our Greater London (outer) install tier. A standard like-for-like combi boiler install in Merton starts from £2,190 including the boiler, flue, magnetic filter (Adey MagnaClean Pro2), system flush, condensate run, and Gas Safe certificate. A system boiler + unvented cylinder upgrade starts from £4,190. All prices exclude VAT. Fixed price quoted after a free survey, we don't add surprises on the day. 12-month workmanship guarantee runs alongside the manufacturer warranty (10 to 12 years depending on brand/model).
How long does a Merton boiler installation take?
For a typical Merton install we plan one day for a straightforward like-for-like combi swap; two days for a system upgrade with cylinder install; three days for back-boiler removal or full system change. Heating and hot water are off only during the install day itself, and we drain, swap, and refill the system the same day where possible. We protect floors with hardboard runners and cover furniture; we tidy up at the end of each day so the property stays usable. Engineers arrive at 8am on the agreed install day with the boiler on the van. Survey to install slot is typically 1 to 2 weeks for combi swaps, 2 to 3 weeks for system upgrades where the cylinder is bespoke-spec.

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Got an emergency in Merton right now?

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