24/7 & EMERGENCY?

CP12 Gas Certification

At Jennings, we prioritize safety above all else. Our Gas Safety Certificates, often referred to as CP12 certificates, are essential documents that certify the safety of your gas appliances.

They are not just a legal requirement; they provide peace of mind, ensuring that your home or property is free from potential gas hazards.

Gas Safety Services

EMERGENCY:
AVAILABLE 24/7

Fast-response emergency gas services for leaks, safety concerns, and appliance faults.

Available 24/7 for homes and businesses.

GAS INSTALLATION & SAFETY DEVICES
GAS METERS & REPLACEMENT
GAS SAFETY CERTIFICATION

Why CP12 Gas Certification is Crucial

  • Gas Safety is Paramount: Gas appliances, if not properly maintained, can pose serious safety risks. Our CP12 certification ensures that your gas appliances are in good working order, reducing the risk of gas leaks, fires, or carbon monoxide poisoning.

  • Legal Compliance: CP12 certificates are a legal requirement for landlords and property owners. Failing to obtain one can result in fines or legal action.

Our Certification Process

  1. Thorough Inspection: Our Gas Safe registered engineers conduct a comprehensive inspection of all gas appliances, including boilers, heaters, and ovens.

  2. Gas Leak Detection: We perform meticulous checks to identify any gas leaks and ensure that your property is gas-tight.

  3. Appliance Safety: Our engineers assess the safety of each appliance, verifying that they are correctly installed, well-ventilated, and in proper working order.

  4. Certification Issued: Once your property passes the inspection, we issue a CP12 Gas Safety Certificate.

  5. Legal Compliance: CP12 certificates are a legal requirement for landlords and property owners. Failing to obtain one can result in fines or legal action.

Why Gas Safety Matters

30%

30% of gas-related incidents are linked to leaks, a major contributor to household fires

1 in 10

1 in 10 UK homes contains an unsafe gas appliance

30%

Up to 30% energy savings can be achieved by ensuring gas appliances run efficiently

Gas Detector Maintenance

Proper maintenance ensures your gas detector remains accurate and responsive. Regular checks, sensor calibration, and battery replacements are essential for reliable performance.

At Jennings, we go a step further by offering comprehensive maintenance services to keep your gas detectors in optimal condition. Our experienced technicians handle routine check-ups, sensor calibration, and timely battery replacements, guaranteeing your continued safety and peace of mind.

Who Needs CP12 Gas Certification?

Landlords

If you're a landlord, CP12 certification is a legal requirement. It's your responsibility to ensure the safety of your tenants.

Homeowners

Although not legally mandated for homeowners, it's strongly advised to have an annual CP12 inspection to guarantee the safety of your household.

Areas we cover

From busy city hubs to peaceful suburban neighborhoods, we’ve got London covered. Our expert property maintenance services ensure your home or business stays in top condition, no matter where you are in Greater London.

The Jennings Guarantee

Our 6-point promise to our customers

Transparent & competitive pricing

Transparent, competitive pricing with no hidden fees. Clear quotes, fair rates, and real value.

No call out fee, fixed & free quotations

We never charge a call-out fee. You only pay for our time on the job. Enjoy fixed, free quotations with no obligation.

Certified & knowledgeable engineers

Certified, experienced tradespeople, continuously assessed to ensure every job meets our highest quality standards.

Neat, tidy, honest & reliable team

We’re a neat, tidy, and trustworthy team that respects your property. From start to finish, we work cleanly and efficiently

Work guaranteed for 18 months

All our work is backed by an 18-month guarantee – one of the longest in London – giving you lasting peace of mind.

New boiler warranties up to 18 years

Get up to 18 years’ warranty on new boiler installations, covering parts and labour with trusted protection.

Need gas supplies

Visit our Pimlico shop on Lupus Street for quality plumbing, heating, and electrical supplies. Stocked with trusted brands and essentials, we’re here to support tradespeople and DIYers with expert advice and great service.

See what our valued customers have to say

Posted on Google Google
Uncovered - The Electric Rock Experience profile picture
Uncovered - The Electric Rock Experience
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing as always!
Posted on Google Google
Bronnie Baynes profile picture
Bronnie Baynes
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing communication and good availability. plumber was extremely professional and arrived on time. Wish there was a bit more transparency on additional payments ie. parking and sealant.
Posted on Google Google
Sue Davies profile picture
Sue Davies
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jennings are incredibly efficient and helpful. They’ve completed my boiler service and organised the necessary plumbing and electrical certifications . Great after sales service.
Posted on Google Google
Diana Gould profile picture
Diana Gould
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent job. Solved a long standing problem quickly and effectively. 100% recommend 👍
Posted on Google Google
Paul Grecian profile picture
Paul Grecian
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
What a fantastic company! From my first conversation with Sian to installation of my new Vaillant boiler they have been absolutely brilliant. Sian responded instantly via What's App when ever I had a question regarding pricing and installation. Sam the installer and his colleague with very friendly, professional, tidy and talked me through the full installation once completed. I have already given contact details to some of my work colleague's this morning. I will use them to service my boiler going forward in the future and for any other plumbing needs. Absolutely 1st Class Company!
Posted on Google Google
Brenda Zang profile picture
Brenda Zang
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Excellent service from start to finish. Had a new boiler installed and a full power flush carried out. Everything was done professionally, efficiently, and to a very high standard. The team were friendly, tidy, and kept us informed throughout. Highly recommend!
Posted on Google Google
Sam Harvey profile picture
Sam Harvey
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Easily one of the best experiences I’ve had with tradesmen. Sian was super friendly and helpful, and then Harry showed up early, fixed the issue promptly and was a legend! Highly recommended.
Posted on Google Google
Joe Carreiro profile picture
Joe Carreiro
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Service was professional and friendly
Posted on Google Google
Olive Tree House profile picture
Olive Tree House
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’ve been dealing with ongoing pump issues for as long as I can remember, and after multiple visits from different plumbers, nothing ever fully got resolved. Harry from Jennings was the first to actually diagnose the problem and sort it in one visit. Professional, efficient, and clearly knows his craft inside out. I couldn’t recommend Jennings more highly.
Posted on Google Google
Stella Ofori profile picture
Stella Ofori
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Tristan was very polite, friendly and very professional. He is also very good at his job and very efficient. Very happy with the service