Our Services

Plumbing
Leak detection for water or gas: if you have a significant water leak, turn off the water at the stopcock. If you smell gas, call us immediately.
- Find and fix leaks, water and gas
- Gas detection
- Pipework, internal and external, copper and plastic
- External pipework and downpipes
- Taps and back flow interrupters
- Waste traps and ballcocks
- Cisterns, toilets and seats, no job too small
Installations & Maintenance
Covering homes, workspaces, healthcare settings and leisure facilities, from a single radiator to a full industrial system.
- Boilers, gas, oil, LPG and biofuel, including electrics
- Water tanks, cisterns and expansion vessels
- Immersion heaters and pumps
- Radiators, all shapes and sizes
- Valves and gauges, recalibration and pressure testing
- Sinks, toilets, urinals and showers
- Gas fired heaters, including overhead
- Pressure reducers
- Eye wash stations and heater guards
- Heated towel rails
- Ventilation and extractor fans
- Underfloor heating and central heating systems
Ancillary & Certification
Compliance and inspection work for landlords and businesses, plus ongoing care for swimming pools and cladding.
- Landlord inspections
- Gas safety certificates
- CO monitors and smoke alarms
- Legionella investigations
- Swimming pool heaters and maintenance
- Cladding
Why Choose W Mullett
60+ Years, Family Run
Established in 1961, with generations of hands-on trade experience passed down.
Residential and Commercial
We handle homes, schools, and businesses across South Wales, from small repairs to full system installs.
Certification and Compliance Expertise
Gas safety checks, thermal imaging, legionella testing and official certification handled properly, first time.
Want to find out more?
Tell us what you need – plumbing, heating, or certification work – and we'll get back to you.
