Heat Pump & Boiler Specialists · London & EssexHeat Pump & Boiler Specialists · London & EssexHeat Pump & Boiler Specialists · London & EssexHeat Pump & Boiler Specialists · London & EssexHeat Pump & Boiler Specialists · London & EssexHeat Pump & Boiler Specialists · London & Essex

Heat Pump & Boiler
Installation, Repair & Servicing
in London & Essex
Whether you're moving to a low-carbon air source heat pump or need a new or repaired gas boiler, our Gas Safe registered engineers design, fit and maintain a system suited to your home. Tell us your postcode and what you need for a free estimate.
- Air source heat pump installers
Gas Safe
Registered engineers
Since 2012
Established local firm
7am – 6pm
Mon–Sat · Closed Sundays
Checkatrade
Independently reviewed
What we do
Heat pumps and boilers first:
backed by full heating and plumbing
Explore heat pump installation, boiler repair and the supporting heating and plumbing services available across London and Essex.

Boiler Installation
New combi, system and conventional boilers supplied and fitted to manufacturer specification, with the old system stripped out and the space left clean.
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Boiler Repair & Servicing
Fault diagnosis, parts replacement and annual servicing that keeps heating and hot water reliable through winter.
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Heat Pump Installation
Air source heat pump systems planned around heat loss, radiators, hot-water demand and the practical needs of your home.
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Heat Pump Servicing & Repair
Routine heat pump maintenance and fault assessment for heating, hot water, controls and circulation problems.
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Central Heating System Installation
Full heating systems designed around your property, including pipework, radiators, controls and commissioning.
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HIU Installation & Repair
Heat interface unit installation, servicing and fault-finding for flats on communal district heating networks.
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Gas Safety Certificates & Landlord Checks
CP12 landlord gas safety inspections carried out by a Gas Safe registered engineer, with findings recorded after the checks.
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Air Conditioning Installation & Repair
Split and multi-split air conditioning installed, serviced and repaired for homes and commercial units.
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Supporting service
General Plumbing & Bathroom Work
Supporting plumbing and bathroom work, including leaks, taps, toilets, fittings and agreed pipework alterations.
Learn more →Why homeowners and landlords call us
Discuss the right next step
for your heating system
Most heating problems are made worse by delay and guesswork. We diagnose the actual fault, tell you what it costs before we start, and complete the work to Gas Safe standards. If a repair is not the sensible spend, we say so, and discuss what a replacement would involve instead.
- Ask to see the engineer's Gas Safe registration card
- Clear pricing agreed before any work begins
Heat pump or boiler?
We will advise honestly
Send a two-line description of the fault or the installation you need and we will come back with a clear next step and an honest estimate. No obligation, no pressure.
Open Monday to Saturday, 7am – 6pm (closed Sundays).
Where we work
Covering East London
and across Essex
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Open map separatelyIndependent reviews
Verified by Checkatrade,
not by us
Every review is left by a real customer and vetted independently. Read the full record before you decide who to let into your home.
10/10
“We've used R1 a few times and he's always been thorough, reliable and methodical. He's also given us several quotes each time and was easy to contact for follow-up queries.”
10/10
“Very professional, very polite and did a fantastic job. The hardest working plumber I know! Definitely will be using R1 in future”
10/10
“Highly recommended! Quoted on the same day of inspection, clean and tidy work and kept me fully informed throughout. He's very friendly and professional.”
Customer reviews supplied from the January–May 2024 record. Read all 18 reviews.
Questions we are asked
before every booking
Are your engineers Gas Safe registered?
Yes. All gas work is carried out by Gas Safe registered engineers, and you can ask to see the registration card on arrival.
Which areas do you cover?
We work across East London (including Ilford, Romford, Barking, Dagenham, Stratford and Walthamstow) and across Essex, including Chelmsford, Basildon, Southend-on-Sea, Brentwood, Colchester, Harlow and Grays.
How long have you been trading?
R1 Gas and Plumbing Ltd was established in 2012 and has been serving London and Essex households and landlords ever since.
What are your working hours?
We are open Monday to Saturday from 7am to 6pm, and closed on Sundays. Call for the fastest response.
Can I see independent reviews before booking?
Yes. Our verified customer reviews are published on our Checkatrade profile, which is linked throughout this site.
Discuss your heating
or plumbing enquiry
Call during our working hours, or send your postcode and a description of the work to request an estimate.


