London · Gas Safe Registered
Boiler repairs, servicing & installations you can rely on
Local, Gas Safe registered engineers keeping London homes warm — honest advice, fair pricing, and no hidden costs.
5-star rated · 24-hour call-backs · emergency visits available
What we do
Our services
From routine servicing to same-day emergency repairs, every job is carried out by certified engineers who explain the problem in plain English before they start.
Gas & boiler repair
Fast, cost-effective repairs that get your heating and hot water working safely again.
Servicing & maintenance
Annual check-ups and preventive maintenance to keep your system efficient and under warranty.
Installation
Precise, certified boiler installations — combi, system or regular — matched to your home.
Emergency repairs
No heat, no hot water, or smelling gas? We provide fast, reliable emergency call-outs.
Certifications
Gas Safe registered with the credentials to service, install and certify with confidence.
Free honest quotes
Clear, upfront pricing with no obligation — and you only pay once the job's done.
About JSP Gas
25 years of honest, reliable heating work
With over 25 years in the industry, we're dedicated to providing reliable gas and boiler repairs, servicing and maintenance — with a strong focus on quality workmanship and customer care.
Our aim is simple: honest advice, efficient solutions, and a professional service you can trust. With safety, reliability and fair pricing at the heart of everything we do, we take pride in helping customers across London keep their homes warm and running smoothly.
“Excellent plumber. Reliable and very good at what he does. Always very happy with the work — pleasant and helpful in explaining issues. Good plumbers are hard to find… here's one!”
— Pip, LondonOur happy customers
What London homeowners say
“It's never great when your heating and hot water stops working. JSP was recommended to us — the costs were explained up front, and the repair was completed the same day.”
Lucy, London“Second time I've used this company. Ritchie always explains what he's doing and the reasoning behind it — that's what I appreciate. I'll be using his services again.”
Samantha, London“From advice on which boiler to choose through to installation and registration — he took the old boiler away, cleaned up, and called the next day to check all was working. Highly recommend.”
Elizabeth, LondonBeyond boilers
Plumbing services
A full range of professional plumbing services for London homes — from full bathroom and wetroom installations to everyday repairs and maintenance, with honest advice and reliable results you can trust.
What's covered
- Bathroom & wetroom installs
- Leak repairs
- Tap replacement
- Toilet repairs
- Radiator issues
- Fault-finding
- General maintenance
- Pipework upgrades
Where we work
Areas covered
Serving homes across North, East and South-East London.
North London
- Barnet
- Camden
- Enfield
- Haringey
- Islington
East London
- Hackney
- Barking & Dagenham
- Newham
- Redbridge
- Tower Hamlets
- Waltham Forest
South-East London
- Greenwich
- Lewisham
- Southwark
- Bexley
Get in touch
Request a free quote
Tell us what's going on and we'll get back to you quickly — usually the same day.