Gas Mark Heating, Air Conditioning & Plumbing
Local experience.
Care for your home.
Based in Dorking, Gas Mark brings over 20 years of plumbing and heating experience to homes across the surrounding area. From everyday repairs to planned improvements, we focus on practical advice, clear communication and work carried out with care.
Heating, air conditioning, plumbing and bathrooms.
A straightforward approach
Good work starts
with listening.
Tell us what needs fixing or what you’d like to change. We’ll help you understand the options and what happens next.
Understand the work.
We explain our findings and recommendations in plain English, so you can make an informed decision about your home.
Know what’s included.
We discuss the proposed work, costs and timings before going ahead. If something else needs attention, we’ll talk it through with you.
Your home comes first.
We protect the working area, explain any disruption and tidy up at the end of each day. Care is part of the job.
About Mark and Gas Mark
Established experience.
More ways to help.
You may already know us as Gas Mark Plumbing & Heating. Our new name, Gas Mark Heating, Air Conditioning & Plumbing, reflects the range of work you can now talk to us about, including air conditioning.
The approach stays straightforward: understand the job, explain the options and keep you informed throughout.
Air-conditioning qualification
Mark holds the City & Guilds 2079-11 Level 2 Award in F-Gas and ODS Regulations (Category 1).
Considering air conditioning at home? We’ll discuss your rooms, the proposed installation and the next steps.
Help around your home
From a small repair
to a bigger project.
Explore the service you need, or describe the job when requesting an appointment.
Comfort through the seasons.
Boiler installation, servicing and repairs, central and underfloor heating, heating controls and power flushing.
Practical fixes. Fresh ideas.
General plumbing repairs, replacement fittings, bathroom updates and larger bathroom projects.
Comfort beyond the boiler.
Explore home air conditioning installations and servicing for your indoor and outdoor units.
Make the first step easy
Start online.
We’ll take it from there.
You don’t need to call to request a routine visit. Choose a preferred date and arrival window, add your details and tell us about the job.
A request, then a confirmation.
Morning windows are 8am–12pm and afternoon windows are 12pm–4pm. Your appointment is confirmed once you receive the approval email.
For larger projects, the first visit helps us assess the work. Installation dates are agreed separately after the proposal is accepted.
You can also call 07584 578146.
Hear from customers
Read their experiences.
Find customer feedback on our Google and TrustATrader profiles.
Let’s talk about
your home.
Based in Dorking, serving Surrey and nearby West Sussex. Tell us your postcode and what you need help with.