Gas & Boilers
Landlord Gas Safety Certificate in Watford & Hertfordshire
Landlords must have every gas appliance in a rental property checked each year. We carry out the check, issue the certificate and can arrange access with your tenants.

The law requires a gas safety check on every gas appliance, fitting and flue in a rented home every 12 months, with a copy of the record given to tenants. We test each appliance, check the flues and ventilation, and record the results on the certificate.
If something fails, we explain what needs doing and give you a price to put it right. We can also service the boiler at the same visit, which is often the simplest way to keep everything in order.
What the gas safety check covers
- Boiler, gas hob, cooker and gas fires
- Gas tightness test on the installation
- Flue and ventilation checks
- Safety device checks
- A completed gas safety record (CP12)
- Access arranged with your tenants if you prefer
From our jobs
Landlord Gas Safety Certificates we have done
Real photos from MJ Services jobs, not stock images.



You need a check if
- Your current certificate is close to its 12 month renewal
- New tenants are moving in
- You have bought a property that is already let
- A gas appliance has been replaced or moved
What affects the price
The price depends on how many gas appliances the property has. A boiler service at the same visit costs less than booking it separately.
“On time, worked hard without a break even though it was a big job. Very personable and knowledgeable. Wouldn't hesitate to recommend him for any gas job.”
Krys ForbesGas workHow it works
Three steps, no surprises
Tell us what you need
Call or send an enquiry. We look at the job and your existing system, and talk through what you want.
Written quote
You receive a clear quote with the price and a start date. Nothing begins until you agree it.
Work and handover
We do the work carefully, test everything, tidy up and show you how it all works.
Questions
Landlord Gas Safety Certificates: common questions
How often do landlords need a gas safety certificate?
Every 12 months. You must keep the record for two years and give your tenants a copy within 28 days of the check.
Can you deal with my tenants directly?
Yes. Give us their details and we will contact them to arrange a time that suits them.
What happens if an appliance fails?
We explain the problem and make it safe, and we give you a price for the repair. A dangerous appliance cannot be used until it is fixed.
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Get a free quote for landlord gas safety certificates
Tell us about the job and we will send you a free written quote.
- Gas Safe registered, no. 528469
- Free written quote before any work starts
- Rated 4.9 from 85 Google reviews
- Or call us on 07908 257410
