G S G Plumbing & Heating

Local, Friendly, Highly-Recommended

Flat 9 Colchester Court, Melrose Avenue, Penylan, Cardiff, CF23 9AU Directions

   Open 24 Hours

Why Choose Us?

Fast Response
Satisfaction Guaranteed
Affordable Prices

Business overview

Fully Qualified Plumber , Gas Engineer. We Cover All Gas, Heating & Plumbing work. -Breakdowns -Installation -Maintenance -Emergencies. *Free Friendly Advice. *Small and big jobs.

I am a local Fully Qualified Gas Safe (corgi) registered engineer.

Based in Roath we cover the whole of Cardiff , Penarth and surrounding areas

We carry out full installations, breakdowns, servicing, maintenance, repairs on all Gas appliances.

We Provide a Fast Response to all calls.

Whether it be a boiler replacement or a tap washer, all jobs are a priority and will treated equally with full customer satisfaction.

We carryout all Plumbing works: bathroom installation, tiling, drainage, showers, taps, kitchen sinks, outside taps, upgrades, leaks.

We strive for customer satisfaction and like to look after our customers. if you have an emergency or out of hours callout we are not here to rip you off, but to help you and put a smile back on your face.

For a free estimate or any advice call:

Install, Repair, Maintenance:

- Boilers

- Leaks

- Components

- Thermostats

- Toilets

- Basins / Sinks

- Radiators

- Valves

- Pumps

- Diagnostics

- Certificates

Mill - 07746464622


GSG Plumbing and Heating
Replacement from an old boiler to a new efficient Baxi boiler.
Image 12 of G S G Plumbing & Heating
Bricking up old flue gap with matching bricks. Finished job to follow
Finished job from brick up of old flue hole
Installation of a new gas fire using the existing surround
An old balanced flue, condemned Heat only boiler. Needs replacing.
Installation of an efficient gas fire with a beautiful marble surround.
Carrying out relevant tests on the PCB, boiler breakdown
Replacement of an burnt out PCB
Electrical shower installation
Plumber plumbing cardiff gas engineer

Products & Services


boiler cleaning, servicing & repair

Boiler Engineers

Boiler Installations

Boiler Replacements

Boiler Service & Repair

Central Heating Boilers

Central Heating Equipment

Central Heating Installation

Central Heating Services


Gas Appliances

gas appliances retail & servicing

Gas Appliances Retail and Servicing

Gas Central Heating

Gas Cooker Installation

Gas Cooker Repairs

Gas Cookers

Gas Detectors

Gas Fire Repairs

gas installers

Gas Leaks

Gas Safety

Gas Safety Checks

Gas Servicing

Heating Engineers

Landlord Safety Certificates

Local Friendly Help


Power Flushing

Trusted Cardiff Plumber


Fantastic Service

Fantastic service! Central heating wouldn't work, house was freezing due to a really cold snap! It was great to be able to speak to a gas engineer on a Sunday evening, when most companies are closed! Mill was really helpful, gave me some good advice and I felt reassured by knowing that someone would be coming out the next morning! The issue was sorted quickly and the central heating was restored to full working order. Will use him again if needed and recommend to friends!
Cancel Update
1000 characters limit

Excellent service and work

my boiler broke and I have a young family so was in a bad spot. Contacted Mill on a Sunday morning and he was over late morning and foxes the problem there and then. Highly recommend GSG!
Cancel Update
1000 characters limit

excellent service

fast reliable service ,with excellent workmanship.highly reccomend for installations and servicing
27 Jan 2020
Thank you for leaving great feedback. Its always a pleasure to carrout work for lovely customers.
27 Jan 2020
Thank you for leaving great feedback. Its always a pleasure to carrout work for lovely customers.
Cancel Update
1000 characters limit

Highly reccomend

Fantastic service installed my gas cooker also had a gas leak, thanks Mill I highly reccomend
Cancel Update
1000 characters limit

No show

Called to arrange a quote for a problem with my bathroom for Saturday. Seem very pleasant and accomodating on the phone.

I asked for reassurance he would definitely turn up. I'd had a nightmare the previous Saturday where I'd waited in all day for a plumber to come, only for them not to turn up, I explained. I didn't want to waste another Saturday I explained. He assured me he "wasn't like that," and we laughed about how unreliable some tradesmen could be.

Fast forward to Saturday. 1:30pm I sent a text asking if we were still on. No reply. Texted again at 2:30pm to ask that if he wasn't coming, please could he at least just let me know so I wasn't sat around waiting. No reply. So yeah.... wouldn't recommend!
Cancel Update
1000 characters limit