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Trusted Plumbing & Heating Experts in London

Keystone London provides professional plumbing, heating, boiler and air conditioning services across West, South West and Central London. We combine experienced engineers, straightforward advice and quality workmanship with the personal service you'd expect from a local company.

Keystone London — Our Principles

  • Customer First, Always.
    We’re built around one simple idea -  exceptional service starts with putting the customer first. Every job, every call, every visit is handled with care, attention and respect.
  • Only the Best People.
    We work exclusively with engineers and office staff who share our standards: honest, professional and proud of their craft. You won’t find shortcuts or bad attitudes here.

  • Real People, Real Service.
    No bots, no call centres. Every enquiry is handled by experienced team members who understand the work and can give real answers, fast.

  • Transparent & Fair Pricing.
    Clear quotes, no surprises. We believe in doing the job properly and pricing it right - always.
  • Quality as a Standard.
    We don’t just complete jobs, we finish them to a standard that reflects our name. Every project is checked, tested, and signed off with pride.

  • Trusted & Verified.
    Every member of our team is fully vetted, insured and DBS checked. Safety, integrity and trust come first in every home we enter.

  • Confidence in Our Work.
    We stand by every job we complete, that’s why our warranties go beyond the industry standard.
  • A Professional Operation.
    We operate from a fully equipped London office, not spare rooms or garages. We believe a premium service deserves a professional foundation.
  • Genuine Reviews Only.
    Every review we receive is from a verified customer. Real work, real feedback, and we’re proud of every one.
  • A Recognisable Standard.
    Our brand reflects who we are - smart, modern, and dependable. From our vans to our uniforms, every detail speaks quality.

  • A Name You Can Rely On.
    Keystone London is built to become the go-to name for trusted home services across the city, through reputation, reliability and results.

  • Integrity Above All.
    We hold our team to the highest standards, we never rehire individuals who compromise our values or reputation.

ABOUT KEYSTONE LONDON

Local Expertise. Professional Standards.

Keystone London is a plumbing and heating company serving homeowners, landlords and property managers across West, South West and Central London.

With over 15 years of industry experience, our team provides reliable plumbing, heating, boiler and air conditioning services — from everyday repairs and maintenance to larger installations and urgent call-outs.

We believe good service goes beyond fixing the immediate problem. It means arriving prepared, explaining what needs to be done, giving straightforward advice and treating every property with care. Our engineers focus on practical, lasting solutions rather than unnecessary work.

With experienced engineers, fully stocked vans and a team that genuinely cares about the quality of its work, we aim to make looking after your property as straightforward as possible.
Keystone London engineer carrying out a boiler service
Keystone London plumbing and heating engineer at a service van
Why Choose Keystone

Experience You Can Rely On

For over 15 years, our team has helped London property owners keep their plumbing and heating systems working safely and reliably.
15+
Years Experience
1,000+
Jobs Completed
5.0
Google Rating
West, SW & Central
Coverage

What You Can Expect From Keystone

Clear, Upfront Pricing

We explain the work and costs clearly before getting started, with no unnecessary extras.

Qualified & Trusted Engineers

Experienced, vetted and insured professionals you can feel confident welcoming into your property.

Work Done Properly

We focus on quality workmanship and lasting solutions, not quick fixes that create another problem later.

Real People When You Need Us

Speak directly with our team — no bots or complicated call centres when you need help.

Respect for Your Property

We work carefully, protect your home and leave the area clean and tidy when the job is complete.

Clear Communication Throughout

From booking to completion, we'll keep you informed about what's happening, what we recommend and why.

Who Keystone works with

From individual homeowners to landlords and property professionals, we provide dependable plumbing and heating support across West, South West and Central London.

Homeowners

Reliable help keeping your home’s plumbing, heating and hot water working properly.
  • Everyday plumbing repairs
  • Boiler & heating services
  • Installations & upgrades

Landlords

Professional support to keep rental properties safe, maintained and running smoothly.
  • Gas safety & servicing
  • Repairs & maintenance
  • Emergency support

Property Managers & Agents

Responsive support for individual properties and managed portfolios across London.
  • Fast engineer response
  • Documented work & reports
  • Ongoing maintenance support

We are accredited

Plumbing, Heating & Property Services

From everyday plumbing repairs to complete heating and air conditioning installations, our experienced engineers provide reliable solutions for homes and managed properties across West, South West and Central London.

Plumbing

Repairs, installations and everyday plumbing maintenance for homes and managed properties.
VIEW PLUMBING SERVICES →

Boilers & Heating

Boiler servicing, repairs and installations, alongside radiator work and complete central heating solutions.
VIEW BOILER & HEATING SERVICES →

Air Conditioning

Professional air conditioning installation, servicing and repairs for homes and commercial properties.
VIEW AIR CONDITIONING SERVICES →

Emergency Support

Fast support for urgent plumbing, boiler and heating problems when you need an engineer quickly.
VIEW EMERGENCY SERVICES →
WHAT WE DO

Plumbing, Heating & Property Services

Reliable plumbing, heating and air conditioning support for homes, landlords and managed properties across West, South West and Central London.

Explore all services

Plumbing

Everyday plumbing repairs and maintenance for taps, toilets, pipework, leaks and water-pressure problems.

View plumbing services

Boilers & Heating

Boiler servicing, repairs and installation, alongside complete heating, radiator and hot-water solutions.

View heating services
ABOUT KEYSTONE

Frequently Asked Questions

Find out more about Keystone London, our engineers, the areas we cover and what you can expect when you book with us.
Still have a question?

Keystone London provides general plumbing, boiler repairs and servicing, heating installations, air conditioning services and emergency call-outs. We work with homeowners, landlords and managed properties across West, South West and Central London.

Yes. Gas and boiler work is carried out by Gas Safe registered engineers, helping ensure work is completed safely and to the required standards.

 

We cover West London, South West London and Central London. Some of the specific areas listed include Chelsea, Kensington, Fulham, Hammersmith, Putney, Wandsworth, Barnes, Richmond, Battersea, Ealing, Chiswick, Shepherd’s Bush and Notting Hill.

Yes. We provide same-day and emergency support for urgent plumbing, boiler and heating problems, subject to engineer availability in your area.

 

Yes. We work with homeowners, landlords, estate agents and property managers, providing repairs, maintenance, installations and ongoing plumbing and heating support.

 

We combine experienced engineers with clear communication, straightforward advice and quality workmanship. Our team focuses on finding the right solution and completing work properly, while treating your property with care.

EMERGENCY SUPPORT ACROSS LONDON

Emergency Plumbing & Heating Services

From burst pipes and boiler breakdowns to gas faults and loss of heating or hot water, our engineers provide urgent support across West, South West and Central London.

Emergency Plumbing

Urgent repairs for burst pipes, leaks and blocked toilets.
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Air Conditioning Repair

Fast repairs for faulty air conditioning systems and breakdowns.
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Emergency Boiler Repair

Fast repairs for boiler breakdowns and heating system faults.
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Emergency Gas Engineer

Gas Safe engineers for urgent gas and heating emergencies.
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Heating Repair

Fast heating repairs for breakdowns, faults and cold radiators.
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Water Leak Repair

Rapid repairs for burst pipes, flooding and water damage.
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Burst Pipe Repair

Rapid repairs for burst pipes, flooding and water damage.
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No Hot Water

Restore hot water after boiler and heating system faults.
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Overflowing Toilet

Fast repairs for blocked, overflowing and faulty toilets.
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Plumbing & Heating

Complete emergency plumbing and heating support for your property.
View Service →

Get in touch with us today for a free quote

KEYSTONE LONDON

First Floor, 289 Brompton Road

Knightsbridge

London SW3 2DY
© 2026 Keystone London Group Limited
Company Reg: 16435424 · VAT: 494 7956 19
Website by Daniel Hayes