Boiler installation
New combi, system and regular boiler installations from leading brands, with finance options available.
Learn more →Gas Safe Registered
Gas Safe Engineer in South Yorkshire
S64 Bathrooms are Gas Safe registered engineers based in Mexborough, covering Doncaster, Rotherham, Sheffield and the wider South Yorkshire area. All gas work — boiler installation, servicing, repairs, gas pipework and CP12 certificates — is carried out by qualified, registered engineers. No cutting corners on safety.
- ✓ Gas Safe Registered
- ✓ ID Carried at All Times
- ✓ CP12 Certificates
- ✓ 24/7 Emergency Callout
Why Gas Safe registration matters
In the UK, it is a legal requirement for any engineer carrying out work on gas appliances — boilers, gas fires, cookers, central heating — to be registered with Gas Safe. Working with an unregistered engineer isn't just illegal; it's dangerous. Poorly executed gas work can cause gas leaks, explosions and carbon monoxide poisoning.
Before you allow any engineer to work on your gas appliances, always ask to see their Gas Safe ID card and check the work categories listed on the back. You can also verify any engineer's status online at gassaferegister.co.uk.
S64 Bathrooms is Gas Safe registered. Our engineers carry ID at all times and will show it before starting any work. You can verify our registration on the Gas Safe Register website.
Gas Safe boiler work in South Yorkshire
Gas Safe services we provide
Boiler servicing
Annual boiler service to keep your heating safe, efficient and warranty-compliant.
Learn more →Boiler repair
Fast diagnosis and repair of boiler faults — including F codes, pressure loss, no hot water and ignition issues.
Learn more →Gas Safety Certificates (CP12)
Annual gas safety inspections and CP12 certificates for landlords and property managers.
Learn more →Central heating installation
Full central heating system installation and upgrades including radiators, TRVs and controls.
Learn more →Gas pipework
New gas supply pipework for boiler relocations, extensions and new-build connections.
Power flushing
Chemical flush of central heating systems to remove sludge and restore flow and efficiency.
Learn more →Carbon monoxide advice
We check for CO risks during every service visit and can advise on CO detector placement and replacement.
Gas Safety Certificates (CP12) for landlords
If you're a landlord in South Yorkshire, you're legally required to have a Gas Safety Certificate — also known as a CP12 or Gas Safety Record — issued for every rental property every 12 months. This must be carried out by a Gas Safe registered engineer.
S64 Bathrooms provides CP12 certificates across Mexborough, Doncaster, Rotherham, Sheffield and surrounding areas. We work with individual landlords, letting agents and property management companies. If you manage multiple properties, we can schedule certificates in advance and send reminders when renewals are due.
Find out more on our dedicated Gas Safety Certificates page or visit our landlord services page.
Carbon monoxide safety
Carbon monoxide (CO) is a colourless, odourless gas produced by incomplete combustion in boilers and gas appliances. It's responsible for around 60 accidental deaths per year in the UK, and many more non-fatal poisonings.
Every home with a gas boiler or appliance should have a working audible carbon monoxide detector installed. We check for CO risks as part of every boiler service and can advise on the best detector placement in your home. For more information, read our carbon monoxide safety guide.
Emergency gas engineer in South Yorkshire
If you can smell gas, suspect a gas leak, or your boiler has broken down in cold weather, call us immediately on 07301 993125. We offer 24/7 emergency callout across South Yorkshire.
If you smell gas, also call the National Gas Emergency line on 0800 111 999 and open windows and doors. Do not use electrical switches or naked flames.
Areas covered by our Gas Safe engineers
We're based in Mexborough (S64) and cover South Yorkshire including:
- Mexborough
- Doncaster
- Rotherham
- Sheffield
- Conisbrough
- Wath-upon-Dearne
- Swinton
- Kilnhurst
- Rawmarsh
- Maltby
- Wombwell
- Goldthorpe
- Bolton-upon-Dearne
- Denaby Main
- Dearne Valley
- Barnsley
Gas Safe engineer FAQs
Gas Safe is the official gas registration scheme in the UK. It is a legal requirement for anyone carrying out gas work on boilers, gas fires, cookers and central heating systems to be on the Gas Safe Register. Always check your engineer's registration before allowing any gas work to take place. You can verify any engineer's registration at gassaferegister.co.uk.
Need a Gas Safe engineer in South Yorkshire?
Call us or book online. We cover Mexborough, Doncaster, Rotherham, Sheffield and all surrounding South Yorkshire areas.