07737 084500
GMC

Oil boilers serviced, heating upgraded and leaks fixed by Gavin, from Wymondham.

We cover all aspects of domestic plumbing and heating on a breakdown and service basis, with oil boiler servicing, full heating system updates and new oil boiler installs.

Call 07737 084500 Email

5.0 from 30 Google reviewsMon-Fri 8am-5pmWymondham, Norfolk

The GMC van on a drive: Service, Install, Breakdowns, Plumbing and Heating
A Grant oil boiler opened up mid-service with the flue gas analyser
Two Gledhill hot water cylinders with expansion vessels and copper pipework
Red oil boiler with its flue hose and the analyser connected during a service

Service, install, breakdowns.

Three ways we look after your plumbing and heating, from our base in Wymondham.

A Grant oil boiler opened up with the flue gas analyser hanging on it

Service

Oil boiler servicing, and the rest of your domestic plumbing and heating looked after on a service basis.

Oil tank outlet with a new supply pipe running down the concrete base

Install

New oil boiler installs and full heating system updates, along with the plumbing that goes with them.

Two red oil boilers opened up in a plant room with tools on the floor

Breakdowns

We cover domestic plumbing and heating on a breakdown basis. If your heating has gone off or a leak won’t wait, call Gavin.

Oil boiler servicing

We offer oil boiler service as well as full heating system updates or new oil boiler installs, alongside everyday plumbing and heating.

A few photos and notes from our own servicing jobs:

Job notes

  • Hand holding a new pump fitting with its grab ring missing

    “Missing grab ring on a new pump”

  • Corroded, holed boiler baffles laid on the grass

    “Failed baffles”

  • Gloved hand servicing a Grant boiler with the analyser hanging beside it

    “Service”

Before: a boiler heat exchanger clogged with soot

Before

After: the same heat exchanger cleaned out

After

Our before and after photos of the same boiler.

On the job

Gloved hand testing an oil boiler with the flue gas analyser probe
Red oil boiler on test with the analyser and a tablet showing the service record
Close-up of the flue gas analyser readings during a service
Grant oil boiler opened up with the flue hose and analyser connected
Red burner taken out of an outdoor oil boiler for servicing
Gloved hand holding a burner assembly during an oil boiler service
Dirty oil filter element and sludge taken out of a filter bowl
Outdoor oil boiler with the casing off and the analyser attached
Outdoor boiler opened against a brick wall with the analyser and tablet
Boiler opened up beside its expansion vessel with the analyser and tablet
An old floor-standing boiler opened up, full of cobwebs
Twin filter housings and hoses set up on a stand against a block wall
A new glass shower enclosure with a chrome shower and towel rail

Plumbing, big jobs and small

All aspects of domestic plumbing, emergency or planned. Jobs we’re called out for:

  • Emergency leaks

    “One leak turned out to be multiple leaks and Gavin committed to fixing them all for them.” Angie Smith

  • Burst pipes

    A pipe to the outside tap burst in the wall cavity: “within 45 minutes he was at the door.” Rob

  • Dripping taps

    “He was on time carried out the work to a very high standard. Also cleaning up afterwards.” Rob

  • Outside taps

    “Gavin put in external tap in our new build.” Martin Adams

  • Toilets and loft tanks

    “they fixed it , and they checked everything including tank up in the loft.” A C

  • Rattling pipes and water pressure

    “Gavin identified the problem immediately.” Gail Haythorpe

New copper pipework, pump, valves and expansion vessel in a cupboard
Copper hot water cylinder in an airing cupboard
Bathroom stripped back to bare walls with the pipe tails ready
Equipment with a gauge and hoses set up on an orange protective mat

What customers say

5.0 from 30 Google reviews

And 100% recommend on Facebook (17 reviews)

Read them all on Google

“He is in our contact list as The plumber.”

We have used GMC in both an emergency job and a planed job.

The emergency was a flooded kitchen floor. The pipe to the outside tap had burst in the wall cavity. I phoned and within 45 minutes he was at the door. He stated that if he could fix it quickly he would. If it would take longer he would stop the leak and come back due to other planned jobs. He very quickly found the issue and stopped the leak. He will be back to carry out a repair.

The planned work was a dripping kitchen tap. He was on time carried out the work to a very high standard. Also cleaning up afterwards.

I would have no problem suggesting his services to anyone.

He is in our contact list as The plumber.

RobGoogle review, January 2026

Gavin helped my parents with an emergency leak in their bathroom this week and I cannot praise him enough. From the moment that Gavin got in touch with me he was super helpful, explained the situation, next steps and set about fixing the leak. One leak turned out to be multiple leaks and Gavin committed to fixing them all for them and went above and beyond in my opinion. I recommend GMC Plumbing 100%. Thank you!

Angie Smith · Google review, April 2026

I would highly recommend Gavin for his specialist knowledge and experience. I had a problem with rattling pipes (already scammed by a previous plumber) and Gavin identified the problem immediately. He explained what was happening and fixed the problem straight away.

He also returned a week later to address another issue we had with water pressure.

He turned up when he said, did a good job and charged a fair price.

I’m very happy.

Gail Haythorpe · Google review, September 2023

Gavin put in external tap in our new build. Very fast response. Great job done. He even tided up the existing copper pipework, giving us more space under the kitchen sink. And for a good price. I would certainly ask Gavin again if I have any future plumbing needs.

Martin Adams · Google review, April 2024

Brilliant service from GMC , had a small problem with my elderly mums toilet , they fixed it , and they checked everything including tank up in the loft.

Really friendly and helpful company I'd highly recommend.

A C · Google review, July 2025

Gavin and the van

GMC Plumbing & Heating is Gavin Cooper’s business, based in Wymondham. It has been a limited company since March 2022, and it’s Gavin you’ll speak to and Gavin who does the work.

We turn up when we say we will, explain the problem and the next steps, clean up afterwards and charge a fair price.

Run by
Gavin Cooper
Based in
Wymondham, Norfolk
Google rating
5.0 from 30 reviews
Open
Mon-Fri 8am-5pm
The side of the GMC van with the phone number 07737 084500
Tools and fittings laid out on a GMC branded mat by a kitchen window

Wymondham and the surrounding area

Call Gavin, or send a message

Boiler service due, heating playing up, or a leak? Ring or email and we’ll get back to you.

07737 084500 gavincooper50@hotmail.co.uk Find us on Facebook

Mon-Fri 8am-5pm

This opens your email app with your message ready to send to Gavin.

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