Safety & flue checks
Relevant checks of the boiler, its safety devices and flue arrangements.
No need to take time off work. Book a routine boiler service with a local, Gas Safe registered engineer.
Only available in BS20, BS21 & BS48
Any repairs or replacement parts are not included in the service price.
Portishead · Clevedon · Nailsea
Gas Safe registeredRegistration no. 619186Want to check an engineer's credentials? Visit the official Gas Safe Register.
Breakdowns and more Explore repairs and other services ↗
Check your postcode, pick an available Saturday and complete your secure booking below. We’ll confirm your morning or afternoon arrival window the evening before.
Three quick steps: check your postcode, choose a Saturday and pay securely online.
Before paying: This £99 offer covers a routine service of an eligible domestic gas boiler. Repairs and parts are extra. Unsure about your boiler? Call us first.
Enter the full postcode of the property where the boiler will be serviced.
Your full service address will be collected at checkout.
Choose a Saturday above and tap Continue to book & pay £99 to complete your payment online.
Or call 07493 215205Your booking is confirmed after completing checkout successfully. We will phone the evening before to confirm morning or afternoon arrival.
A routine service looks at the safe operation and condition of your boiler, following the relevant manufacturer's requirements.
Relevant checks of the boiler, its safety devices and flue arrangements.
Checks of performance and key components as part of the service.
We assess how efficiently your boiler is running and share practical feedback.
A record of the service and clear advice if any further work is recommended.
Clear pricing: £99 covers a routine service for an eligible domestic gas boiler. Fault diagnosis, repairs, parts and servicing other appliances are not included. Unsure whether your boiler qualifies? Call us before paying.
Choose a Saturday that suits you, then we'll keep you informed ahead of your engineer's visit. No need to take annual leave.
Five-star feedback from our customers.
“Lee is reliable and has serviced my boiler now for the last three years in a row! Brilliant service, highly recommend!”
“Fast, friendly and efficient service. Lee went above and beyond to answer all my questions. Will definitely be using him again. Thank you 😊”
“Exceptional service. I'm not quick to recommend normally, however, Lee has been fantastic. Exceptional service. I'm not quick to recommend normally, however, Lee has been fantastic. Quick to respond, organises everything without any hassle to myself, turns up on time, great communication, respectful of my home and is a clean worker. I have used Lee numerous times and will continue too. 🤩”
The promotional £99 service is only available in Portishead, Clevedon and Nailsea.
Please confirm the service address before arranging a service.
Everything you need to know before booking and paying for your Saturday service.
A routine service of an eligible domestic gas boiler, including appropriate safety and operational checks and a service record. Fault diagnosis, repairs and replacement parts are not included.
Yes. Severnside Gas is Gas Safe registered and insured, with 25 years' experience in gas boiler servicing and repairs. You can check registered businesses and engineers on the official Gas Safe Register website.
You book a Saturday rather than a specific time. We'll call the evening before to confirm whether to expect a morning or afternoon visit, then contact you when we're on our way.
The offer covers eligible addresses in Portishead, Clevedon and Nailsea. Enter your full postcode in the checker before booking.
If you have any questions about the offer, please call 07493 215205 before booking.
No. This offer is for a routine boiler service, not a landlord gas safety inspection or certificate. Contact us if you need a landlord check.
Choose an available Saturday, enter your contact and service address details, and pay £99 securely online. Your date is confirmed when checkout is completed successfully. Call us before paying if you have any questions about booking changes or cancellations.
Monday to Friday, Severnside Gas Services works in commercial gas engineering, commissioning boilers, working on burners and maintaining complex plant. Learn more about the experience behind your Saturday service.
Local, Gas Safe registered servicing in three nearby areas. Check your postcode and see the next four Saturdays.