Wet underfloor heating · Cardiff & the Vale

Underfloor Heating in Cardiff

Warm, even floors designed and installed as part of your heating system, by a Gas Safe registered engineer with a straight 5.0 from 207 reviews.

★★★★★ 5.0 from 207 Google reviewsGas Safe registeredBaxi Approved Installer

Underfloor heating is increasingly the choice in Cardiff extensions and renovations, and for good reason: warm floors, even heat, and no radiators eating into wall space in a new kitchen or open-plan room. The version worth fitting is wet underfloor heating, fed from your boiler, designed as part of the heating system rather than added on at the end.

Designed as one system

Whether it is a new extension where the pipework goes in before the screed, or a retrofit into an existing room with a low-profile system, the design has to suit the floor and the boiler. LMB is a Gas Safe registered heating business, so the underfloor circuit, manifold, controls and boiler are all set up to work together, which is what makes the difference between underfloor heating that performs and underfloor heating that disappoints.

It pairs naturally with a new boiler where the existing one is not up to it, fitted from £1,900. Coverage runs across Cardiff and the Vale from a Pencoed base; call or WhatsApp 07712 646488 for a price.

5.0 from 207 Google reviews

What customers say about the heating work

Quoted verbatim from LMB’s public Google profile. Nothing edited, nothing invented.

5.0
★★★★★
207 Google reviews
Every single review is five stars
5100%
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Read all 207 reviews on Google
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Oliver Rees
March 2026
★★★★★
Annual service
Hired Lloyd to carry out a boiler service and outdoor tap replacement. Very punctual, polite. Even giving our dog buddy a fuss. No mess or delays.
AW
Alastair Wilson
March 2026
★★★★★
Boiler install
Great job, really professional, high quality of work and cleaned up after. Very happy with the work Lloyd did.
KJ
Kieran Jones
April 2026
★★★★★
Lloyd is genuinely a top top plumber. Knows his stuff and has always offered his services at a reasonable price. He has also managed to squeeze us in at short notice.
From his Google profile, not a stock library

Real jobs, photographed by Lloyd

Lloyd Bargery standing in front of his sign-written LMB Plumbing and Heating van
Lloyd and the LMB van. The engineer who quotes is the engineer who turns up.
Worcester combi boiler installed by Lloyd, dated commissioning sticker visible on the case
A combi install with the dated LMB commissioning sticker on the case.
Full bathroom refit by Lloyd with black towel radiator, vanity unit and walk-in shower
Full bathroom refit: towel radiator, vanity unit and walk-in shower.

Questions people ask

Do you fit underfloor heating in Cardiff extensions?

Yes. Extensions and new builds are the easiest place to fit wet underfloor heating, going in before the screed. Retrofits into existing rooms are also possible with low-profile systems.

Will it work with my existing boiler?

Wet underfloor heating runs from the boiler like a radiator circuit. As a Gas Safe registered business, the system and boiler are set up together; where the boiler is not up to it, a new one can be fitted from £1,900.

Do you cover Cardiff from near Bridgend?

Yes, across Cardiff and the Vale, weighted to the western suburbs and the Vale side. Honest planned coverage for heating work.

How do I get a price?

Call or WhatsApp 07712 646488 with the room and floor type for a straight answer on what it involves and the cost.

Service and coverage
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      Send Lloyd the job and your details on WhatsApp and he comes straight back to you. No call centre, no waiting on hold.