800+ positive reviews. MyBuilder Tradesman of the Month. Top 3 Plumbers in Cardiff three years running. Worcester Bosch Accredited Installer with up to 12-year guarantees.
Recognised & Trusted Across the Industry
Founded by Scott McClure, who started in the trade aged 16. Nearly two decades of hands-on expertise, a stack of national awards, and 800+ reviews to back it up.
Registration number 570503 — proudly published so you can check us on the Gas Safe Register before we even arrive.
MyBuilder Tradesman of the Month, Top 3 in Cardiff on Bark for three years running, and commended at the Energy Efficiency Awards in Wales.
As a Worcester Bosch Accredited Installer and Baxi Approved Installer, we can offer extended manufacturer guarantees that most plumbers can't.
Spread the cost of breakdown cover, service and maintenance across the year. Bronze, Silver and Gold plans — no long appointment waits.
All of our engineers are specifically trained to install Nest smart thermostats — giving you proper control over your heating bills.
Call us free on 0800 0832 771. Based in Llanishen, covering all of Cardiff and South Wales — a real local team that picks up the phone.
From a leaky tap to a full bathroom refit, a new boiler to a smart thermostat — one trusted team for every job around your home.
Installation, repair and servicing. Worcester Bosch, Baxi, Glowworm, Viessmann. 6–12 year guarantees.
Get a quote →Leaks, taps, blockages, emergency plumbing — all types of domestic plumbing repairs and installations.
Get a quote →Radiators, power flushing, Megaflo unvented cylinders, MagnaClean, underfloor heating.
Get a quote →Gas safety certificates, appliance installation, gas leak emergencies. Reg. 570503.
Get a quote →Full bathroom design, supply and installation — from refits to brand-new suites.
Get a quote →Kitchen installation, plumbing and gas connections — we handle the whole trade-side fit-out.
Get a quote →Bronze, Silver & Gold cover plans from just 43p/day. Breakdown, service and maintenance.
See plans →Certified Nest installers. Smart heating control that learns your routine and saves on bills.
Get a quote →As one of a select few Worcester Bosch Accredited Installers in Cardiff, SMC can offer extended manufacturer guarantees of 6 to 12 years — peace of mind no standard installer can match.
We're proud to be one of the most reviewed plumbing companies in Cardiff. Here's what real customers say on MyBuilder & FreeIndex.
"Called Scott out after hot water was playing up. He fixed the problem very quickly and was very communicative. Would definitely recommend!"
"Professional, prompt and friendly service. Scott arrived with a smile, was very knowledgeable and helped to get the job done quickly. Him and his colleague cleaned up after themselves. Would recommend."
"Two radiators changed, plus thermostatic valves and a boiler timer. SMC were on time and had all the fittings necessary including dust-sheets. Work completed efficiently. Courteous and treated my home with respect. A first-class job."
"I have found Scott to be friendly, reliable and trustworthy. He is a highly skilled gas engineer and was able to repair my broken boiler which had defeated another gas engineer."
"He takes his work seriously and works hard to keep his good reputation. The large number of 100% positive reviews on MyBuilder was what made me use him, and the company lived up to its reputation."
"Excellent service, contacted me straight away, arranged for the job to be done within days and all sorted within the hour when they came to fix it. Would definitely recommend and use again."
"Amazing work at a great price. Couldn't ask for more from a Cardiff plumber — would use SMC again in a heartbeat."
"Called Scott out after hot water was playing up. He fixed the problem very quickly and was very communicative. Would definitely recommend!"
"Professional, prompt and friendly service. Scott arrived with a smile, was very knowledgeable and helped to get the job done quickly. Him and his colleague cleaned up after themselves. Would recommend."
"Two radiators changed, plus thermostatic valves and a boiler timer. SMC were on time and had all the fittings necessary including dust-sheets. Work completed efficiently. A first-class job."
"I have found Scott to be friendly, reliable and trustworthy. He is a highly skilled gas engineer and was able to repair my broken boiler which had defeated another gas engineer."
"He takes his work seriously and works hard to keep his good reputation. The large number of 100% positive reviews on MyBuilder was what made me use him."
"Excellent service, contacted me straight away, arranged for the job to be done within days and all sorted within the hour. Would definitely recommend and use again."
"Amazing work at a great price. Couldn't ask for more from a Cardiff plumber — would use SMC again in a heartbeat."
Based in Llanishen (CF14), we cover every corner of Cardiff and the surrounding South Wales area. If you don't see your area below — just ask.
Not in the list? We cover all of Cardiff & South Wales. Call us on 0800 0832 771.
From the first phone call to the final clean-up, we make working with us as easy as possible.
Call us free on 0800 0832 771 or fill in our quick quote form. Tell us what's going on — we'll listen.
For larger jobs we visit in person and give you a written, no-obligation quote with honest advice.
Gas Safe registered. Dust-sheets down. Clean, careful work that respects your home and your time.
Manufacturer guarantees of up to 12 years on Worcester Bosch boilers — and we're always at the end of the phone.
No long waits for a Centrica engineer. No surprise bills when something goes wrong. Spread the cost of boiler breakdown cover, service and maintenance over the year — and get a real, local Gas Safe engineer on the job.
Annual service & essential cover for your boiler.
Service + breakdown cover for boiler & central heating.
Full cover — boiler, heating & home plumbing emergencies.
Scott McClure started working in the heating industry at 16. After a brief detour into a warehouse, he came back to plumbing — his first love — and started SMC doing small jobs and boiler servicing. Over a decade later, SMC is one of the most reviewed and most decorated plumbing companies in Cardiff.
Today Scott is joined by Rob — a heating specialist who's been part of the SMC team for over 6 years. Together they bring the personal, careful, community-rooted service that 800+ reviews have built.
Scott & Rob — your Cardiff plumbing & heating team. Two Gas Safe engineers, one shared commitment to doing the job properly.
Proudly Installing & Servicing All Major Brands
Common questions about boilers, gas work, cover plans and how SMC works. Don't see your question? Just give Scott a ring.
Yes — registration number 570503. You can verify us on the Gas Safe Register before any work begins. Every gas job we do is legal, certified and safe.
Yes. We're available for emergency plumbing and heating work across Cardiff & South Wales. Call our freephone 0800 0832 771 or Scott's mobile 07377 500 077.
As a Worcester Bosch Accredited Installer and Baxi Approved Installer, we can offer extended manufacturer guarantees ranging from 6 to 12 years — depending on the model. Most standard installers can't offer this.
We offer Bronze, Silver and Gold cover plans from just 43p a day. Each plan covers boiler breakdown, service and maintenance — spreading the cost over the year and avoiding nasty surprise bills. Get in touch and we'll talk you through which plan suits your home.
Yes — every engineer on our team is a Nest Certified Professional. We can supply, install and set up your Nest, and integrate it cleanly with your existing or new heating system.
We're based in Llanishen (CF14) and cover all of Cardiff and the surrounding South Wales area. If you're not sure whether we cover your postcode, just give us a quick call.
For everyday plumbing and heating jobs we usually arrange a visit within a few days. For emergencies (no heating, no hot water, leaks) we'll do everything we can to get to you the same day.
Get a free, no-obligation quote from a Gas Safe registered team trusted by over 1,000 Cardiff customers.