Welcome to G4 Gas, the home of reliable and quick plumbing and heating help when things go wrong... and when they don't!

We’re here to help! If it’s anything to do with plumbing or heating, boilers, central heating, hot water supply or gas cookers just give us a ring and we’ll sort you out.

But before you do…Why not take a look at some of the testimonials we’ve been given by our many satisfied customers? That way you’ll know that we’re as good as we say we are!

How we can help!

Based in Trowbridge and covering most Bath postcodes we are THE experts when it comes to Gas Central Heating repairs, servicing and installations. We can fit a new boiler, power flush and / or upgrade your system, add new radiators, install complete new systems, sort out problems and generally look after you.

Problems in the kitchen? Give us a call! We can mend cookers and cooker hoods and sort out any plumbing problems. We’re also increasingly being asked about water softeners and we now supply a range of softeners to meet every need.

We do a lot of work with landlords, who know they can trust us to do a good job at a fair price, and we can provide landlord certificates when required.

If you need a new boiler, talk to us, we’ll be able to advise you on the best option to meet your needs and offer from a wide range that includes such well trusted names as Viessman, Worcester, Valliant and Alpha. All fully backed by manufacturers’ guarantees. Remember that no matter if it’s a combi, conventional or fire-back all new boilers are at least 97% efficient, which has saved some of our customers up to 50% on their bills.


  1. G4 Gas are British Gas approved and Gas Safe registered (Gas Safe replaced the old Corgi scheme).
  2. We offer free quotes, fixed price servicing, we have no call-out charge during office hours, we accept card payments, we’re fully insured, our work is guaranteed.
  3. We aim to arrive on time, leave on time, clear up after us and keep you fully informed and in the loop. We offer a “no fix no fee” deal on repairs and we stick to the price quoted even if the job takes us twice as long.
  4. We’re also friendly, trustworthy and keen to help…! 

So, why not give us a ring now on 01225 769 828, and then… relax. You’re in good hands.