Central heating · Cardiff & the Vale

Heating Engineer in Cardiff

Central heating designed, installed and repaired as one system for Cardiff homes, by a Gas Safe registered engineer with a straight 5.0 from 207 reviews.

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

Good heating is a system, not a list of parts, the boiler, the radiators, the pipework and the controls all working together. A heating engineer who treats it that way fixes the cause of a cold house rather than swapping one component and hoping. LMB does exactly that, with 207 Google reviews at a 5.0 and Baxi Approved Installer status behind the work.

What a heating engineer covers

Full boiler and central heating installation, adding or moving radiators, thermostatic radiator valves and modern controls, diagnosing cold spots and uneven heating, and power flushing a system clogged with sludge so it heats evenly and runs efficiently again. Where a system is tired or the boiler is on its way out, you get an honest plan rather than a patch, with new boilers fitted from £1,900 and a fixed price available online in about 90 seconds.

Coverage runs across Cardiff and the Vale from a Pencoed base, weighted to the western suburbs and the Vale side.

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
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.
OR
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.
KA
keegan alexander-rees
April 2026
★★★★★
Brilliant service, would definitely have Lloyd back and would recommend to anyone for either big or small jobs!
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

My radiators heat unevenly, can you fix it?

Yes. Uneven heating is usually trapped air or sludge in the system. The fix is diagnosed properly, which can mean balancing, a power flush and an inhibitor, rather than treating one radiator at a time.

Do you install full central heating systems?

Yes. Full boiler and central heating installation, radiators, controls and pipework, designed as one system. New boilers are fitted from £1,900 with a fixed price online in about 90 seconds.

What is a power flush and do I need one?

A power flush clears built-up sludge from the system so it heats evenly and efficiently. It is worth it where radiators are cold at the bottom or the system runs black water; you get an honest assessment of whether it is needed.

How do I get a price?

Call or WhatsApp 07712 646488, or use the online tool for a fixed boiler price in about 90 seconds.

Service and coverage
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