Top 5 Gas Safety Certificate Providers in London
Explore the top 5 companies offering Gas Safety Certificates in London. Citywide Plumbers stands out with 10% off, local Gas Safe engineers, and prompt, professional service.
Why a Gas Safety Certificate Matters in London
A Gas Safety Certificate (CP12) is a legal requirement for landlords in the UK, ensuring that gas appliances, pipework, and flues are safe to use. Whether you own a single flat or multiple properties in London, an annual check by a Gas Safe registered engineer is mandatory—and essential for protecting tenants, avoiding fines, and securing insurance.
While several providers operate across London, only a few combine compliance, reliability, and transparent pricing. Below, we compare five leading companies, including Citywide Plumbers, who now offer a limited-time 10% discount on all gas safety inspections.
Top 5 Gas Safety Certificate Providers in London
| Company |
Services |
Highlights |
Contact |
| Aspect |
Gas safety inspections, repairs |
Fast response, multi-trade coverage |
020 8879 9600 |
| British Gas |
CP12 certificates, maintenance |
National coverage, annual plans |
0333 202 9802 |
| Gas Safe Engineering |
Certificates, boiler servicing |
London-focused, competitive rates |
020 8945 7575 |
| BOXT |
Gas checks, boiler installs |
Online bookings, fixed pricing |
0800 193 7777 |
| Citywide Plumbers |
CP12, landlord safety checks |
10% discount, local Gas Safe engineers |
020 3892 8545 |
Why Choose Citywide Plumbers?
Citywide Plumbers isn’t just a gas safety provider—we’re your local plumbing partner, trusted by homeowners and landlords alike. Here’s what sets us apart:
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10% Discount on All CP12 Inspections
Get certified legally and affordably with our limited-time offer.
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Local Engineers, Faster Response
We work with Gas Safe engineers from your borough, not out-of-town contractors.
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Trusted by London Landlords
From Notting Hill flats to Hackney houses, we inspect all types of properties.
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Fully Transparent Pricing
No hidden charges. What we quote is what you pay.
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Gas Safe Registered and Insured
Peace of mind that your gas system is inspected professionally.
Book Your Certificate Today
Don’t risk fines or insurance issues. Book your gas safety inspection today with 10% off and let our local experts keep your property safe and compliant.
Citywide Plumbers
Phone: 020 3892 8545
Email: info@citywideplumbers.co.uk