London's Boiler Repair & Installation Experts
Same-day boiler repairs and brand-new A-rated installations across London. Fixed prices, 10-year warranties available, and Gas Safe engineers on the road 24/7.
- Same-day boiler repairs
- New boiler from £1,895 fitted
- Up to 10-year warranty
- All major brands serviced
Get a callback fast
No obligation. Honest, upfront pricing.
Boiler trouble? Or ready for a brand new one? We've got you.
Boilers are what we do best. Gas Safe registered engineers, transparent fixed pricing, and warranties that actually protect you.
Boiler Repairs
Sound familiar? We'll diagnose and repair most issues on the first visit — usually the same day.
- No heating or hot water
- Boiler leaking or dripping
- Pilot light keeps going out
- Strange banging or whistling noises
- Low pressure or repeated resets
- Error codes on the display
New Boiler Installation
Upgrade to an A-rated combi or system boiler. Smaller energy bills, better hot water, peace of mind.
- Free in-home survey & fixed quote
- A-rated combi, system & regular boilers
- Worcester, Vaillant, Ideal, Baxi & more
- Same-week installation in most cases
- Up to 10-year manufacturer warranty
- Old boiler removed & area left spotless
Boiler specialists — and full-service plumbers
We're known across London for boiler repairs and installations. We also cover everything else plumbing, so one call sorts the lot.
New Boiler Installations
A-rated combi, system and regular boilers fitted by Gas Safe engineers. From £1,895.
Learn moreBoiler Servicing & Gas Safety
Annual boiler service, landlord CP12 certificates, gas leak checks and full system health reports.
Get a quoteEmergency Plumbing
Burst pipes, blocked toilets, no water — 24/7 rapid response across London.
Get a quoteLeak Detection
Non-invasive leak finding with thermal imaging. Save your floors and walls.
Get a quoteDrains & Maintenance
Blocked drains, slow sinks, general plumbing maintenance for homes and businesses.
Get a quoteThe reliable local team you'd actually recommend
We built 5 Star Plumbing & Gas on the boring stuff that matters: showing up on time, doing the job right, and being honest about price.
Fast emergency response
Average 30-minute arrival across central London. We pick up the phone, day or night.
Qualified Gas Safe engineers
Every engineer is vetted, qualified and trained on the latest boilers and systems.
Transparent, fair pricing
Fixed quotes before we start. No hidden surcharges, ever.
Residential & commercial
From a leaky tap in a flat to full building heating systems — we cover both.
Tidy, respectful work
Shoe covers, dust sheets, and a clean finish. We treat your home like our own.
12-month workmanship guarantee
Every job is guaranteed in writing. If something's wrong, we fix it free.
See it on @5starplumbingandgas
A look at the kind of jobs we complete every week across London. Tap any photo to view more on our Instagram.
5★ from real Bark customers
Every review below is verified on our Bark.com profile — read all 40 reviews and check the latest.
Bark verified"Rowan and Junior replaced my old boiler with Vaillant and provided an excellent customer experience from start to finish. They turned up on time, completed the work within 6 hours and left my place clean and tidy. Highly recommend."
Bark verified"Amazing service from start to finish! Had a new boiler installed within a week by engineers who were very knowledgeable and tidy. The 0% finance package was great value. 5 STARS DEFINITELY!"
Bark verified"Clear communications, reliable and quality work for a new boiler and central heating system in Clapham Common from Rowan and the team at 5 Star."
Bark verified"Rowan and his team are amazing. They provided a competitive quote, professional service and also a patient introduction to my newly installed boiler and radiators."
Bark verified"From my initial communication Rowan was polite, friendly, professional and very knowledgeable. My new combi boiler was installed in just one day. Highly recommend — very impressed with the efficiency and quality of service."
Bark verified"Rowan and his team were excellent. He installed a brand new central heating system and boiler into my property. Worked quickly on one of the hottest days of the year and did a brilliant job."
Bark verified"Rowan and the team were a pleasure to work with. They managed to fit us in last minute when my boiler packed up — competitive prices and a beautiful installation. Even the aftercare is impressive."
Bark verified"Rowan came and installed a new boiler for us. He was very punctual, professional, knowledgeable and overall a nice guy. I will happily recommend Rowan for any of your boiler needs."
Quick answers, straight up
For most central London postcodes our average arrival time is around 30 minutes. We operate 24 hours a day, 7 days a week including bank holidays.
Yes — quotes are free and we always agree a fixed price in writing before any work starts. No hidden surcharges.
All our engineers are Gas Safe registered, fully insured and experienced with both residential and commercial systems.
We cover all London boroughs and the surrounding M25 area. If you're unsure, give us a call and we'll confirm immediately.
Yes. Every job comes with a 12-month workmanship guarantee in writing. New boiler installations can include manufacturer warranties up to 10 years.
Absolutely. We handle landlord gas safety certificates (CP12), commercial maintenance contracts and one-off commercial installations.
Need a plumber in London? Let's sort it today.
Call us now for a friendly chat and a no-obligation quote — or request a callback and we'll be in touch within 15 minutes.