Mr Pym the Plumber for domestic plumbing, heating and oil boilers

Our services cover:

Oil-fired boilers - OFTEC-registered engineer.  We service & repair oil boilers & installation new ones.
Our OFTEC engineer will install or service Rayburns with pressure jets.

Biomass boilers
We supply and install pellet boilers, chip boilers & log boilers.
We're MCS-accredited for this work, so our installations will be eligible for the Renewable Heat Incentive.
We also service and repair them pellet boilers.

There's more on this topic on a separate page.

Heating systems - we design and install new systems, with radiators, wet underfloor heating or a combination of both.  If your system needs a repair or an alteration, give us a call.

Plumbing - we put in new systems, and mend or improve existing pipework.  If the cistern on your WC or a tap has an annoying drip, call us and we'll sort it out.

Hot water - we deal with unvented and vented cylinders and heat stores.  If you want to keep the temperature at the taps to a particular temperature, we can add blenders to the system.

Cold water supplies -
we'll deal with pumps and pressure vessels, a break tank, or filters and UV treatment units.

Bathrooms and kitchens - we'll do repairs, installations and refurbishments.  If you need a complete package, we'll bring in specialists, including for electrical work, plastering, tiling, flooring and carpentry.


Pump to pressurise a cold water supply, standing next to a break-tank (left) for water storage

Old building, new plumbing - the picture above is from the cellar in a farmhouse in Abermiwl, heated by a hybrid system, combining a log boiler, an oil boiler and a 5-panel solar system.  Design and installation by Mr Pym / Gwres Glas - Green Heat.

Hen adeilad, gwresogi ar newydd wedd - mae'r peipiau newydd yn cysylltu'r gwres canolog i system newydd sy'n cyfuno egni o goed tân, olew a'r haul.


A type of hot water cylinder called a heat stor, with solar and pellet boiler pipework.


Expansion vessel and solar controller.