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  • Gas Safe registered
  • Rated 5.0 on Google
  • 24/7 emergency call-out
InstaGasWorks van parked at the Sun Gate entrance to Battersea Park

Plumbers & Gas Engineers in South London

Expert Care. Honest Pricing. Local Trust.

A heating fault is never convenient. We turn up when we said we would, tell you what's actually wrong before we touch anything, and give you the price before we start. Dripping tap or full boiler install, it's the same engineer and the same standard.

What we do

Gas, heating and plumbing across South London, priced up front

Every service has its own page with fixed prices, honest answers and online booking. Emergency call-outs are available 24/7.

A new boiler installed by InstaGasWorks

New boiler, fitted and guaranteed

Boiler Installation

From £2,500fixed, after a free survey
  • One heating control free
  • Extra 2-year warranty free
  • 10-year manufacturer warranty as standard
  • Powerflush of the heating system
  • Magnetic filter supplied and fitted
  • Limescale reducer fitted
View boiler installation

Not sure which service you need? Call 0208 226 0205 and describe the problem — we'll tell you the price before you book.

Rated 5.0 by our customers on Google

Read the reviews
Engineer explaining a boiler check to a homeowner
Engineer arriving at a London home for a service visit
Engineer testing a radiator while the homeowner looks on
Engineer servicing a boiler in a family kitchen
Engineer reviewing boiler information on a tablet with a homeowner
Engineer checking a home heating system while a couple looks on

About us

Why families keep our number on the fridge

We look after homes across south west London, and most of our work still comes from someone telling a neighbour.

Our Gas Safe registered engineers turn up when we say we will, explain what we found before we touch anything, and quote the job before we start it. Whether it's a full system upgrade or a boiler that died on the coldest night of the year, you get the same engineer and the same standard.

Read our story
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Emergency call-out
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Gas Safe registered

Service area

Gas and heating engineers across South West London

We work a tight patch - from Battersea and Putney, down through Wimbledon and Streatham, to Croydon and Sutton. Staying local is how we get to same-day breakdowns. Pick a borough to see what we cover.

Not on the list? Call 0208 226 0205 and we'll tell you straight away whether we can reach you.

In our areaOutside our areaHover or tap any borough

Postcode check

Check if we cover your postcode

Type your postcode for an instant answer. If you're in our patch, we'll point you to your local page with prices and response times - and if you're just outside it, call or email us and we'll tell you honestly whether we can reach you.

See all areas we cover

Our work

Recent jobs, straight from the van

Real installs from real homes across London: boilers, bathrooms, cylinders and gas fires, all by a Gas Safe registered engineer.

Qualifications & boiler brands

Gas Safe Registered
BPEC Certified
City & Guilds NVQ Qualified
WRAS Approved
Baxi Approved Installer
Glow-worm
Ideal Heating
Vaillant
Worcester Bosch

Reviews

What our customers say

Every review below is a real one from our Google listing. Read them there if you'd rather check for yourself.

Simon

Posted on Google
Verified - a genuine review from our Google listing.

I can't recommend Chris at Instagasworks highly enough. Over the course of a week he resolved a high pressure issue on my boiler which had been ongoing for over a month. He explained everything really clearly and dealt with the issue with integrity, which involved replacing a heat exchange plate. I never got the impression he was trying to rip me off and his prices are fair and competitive. My boiler is located in an awkward location but he worked with me to ensure he could complete the work, and I'll definitely be using his services in the future.

Sean O'Sullivan

Posted on Google
Verified - a genuine review from our Google listing.

Excellent service. Efficient and reliable. Chris has a great manner in the way of explaining what needs to be done and how he will do it. No hesitation in recommending Instagasworks and I will contact again if needed in the future.

Charlotte Osborne

Posted on Google
Verified - a genuine review from our Google listing.

Chris is kind and helpful. He is quick to respond and goes above and beyond to help.

David Gilmour

Posted on Google
Verified - a genuine review from our Google listing.

Instagasworks Plumbing and Heating. This is the most competent and efficient company with regard to the installation and maintenance of heating systems that I have ever come across.

Mohamed Siddik

Posted on Google
Verified - a genuine review from our Google listing.

Amazing customer service, Chris goes over and beyond!

Samantha Ashford

Posted on Google
Verified - a genuine review from our Google listing.

Amazing service, friendly and very hardworking.

Get in touch

Tell us what's wrong

Routine service or emergency repair - send us the details and we'll come back to you with a time and a price. If it's urgent, call instead; someone picks up 24/7.

Office

37 Mitcham Lane, London, SW16 6LJ

Questions

Answers before you call

The things people ask us most - including what to do right now if you smell gas or a pipe has burst.

Safety & Compliance

Boiler & Heating

Why trust InstaGasWorks?

Technical expertise, honest pricing, and exceptional customer service.

Gas Safe Registered
24/7 Emergency Response
Fixed, Honest Pricing
Reliable & Professional
Workmanship Guaranteed
Fully Insured Service