Call Us On 07979 677209
Call Us On 07979 677209
Trusted experts in South Wales for boiler installation, servicing & air conditioning. Over 15 years’ experience, Gas Safe registered, and 100+ 5-star Google reviews
At MJB, we make heating and cooling simple, modern, and reliable. From new installations to servicing, our focus is on efficiency, comfort, and long-term value. We combine expert knowledge with a customer-first approach so every job is done right, the first time.
With training from British Gas and experience across all major boiler brands, we’re trusted by homeowners and businesses across Rhondda and South Wales. Our mission is simple: reliable service, fair prices, and work done right the first time.
Heating and cooling specialists in South & West Wales – trusted for boilers, servicing and air conditioning.
Tell us about your boiler or air conditioning needs and get a quick, no-obligation quote.
Choose a date that works for you. Our certified engineers will arrive on time, fully prepared, and ready to get the job done.
Whether it’s a new boiler or energy-efficient air conditioning, relax knowing your home is running safely and efficiently.
At MJB Servicing Ltd Heating and Cooling, we specialise in reliable, efficient heating and cooling solutions across Rhondda and South Wales. From new boiler installations to modern air conditioning systems, our Gas Safe and F-Gas certified engineers deliver expert service you can trust.
Every MJB Servicing Ltd customer experience reflects the trust and expertise behind our heating and cooling services. Their feedback isn’t just praise—it drives us to deliver smarter, more efficient solutions and keep homes and businesses in Porth comfortable all year round.
At MJB Servicing Ltd Heating & Cooling, we specialise in keeping homes and businesses in South Wales servicing areas from Cardiff, Newport, Swansea and beyond comfortable, safe, and energy-efficient all year round. With over 15 years of industry experience and training from British Gas, our team has worked on nearly every make and model of boiler and air conditioning system.
Safe, compliant setups for caravans and mobile homes.
Keep your caravan legal and secure with certified inspections.
Routine servicing to keep your system running smoothly.
Fast call-outs when something goes wrong.
Trusted by homeowners and businesses across Porth and The Rhondda Valleys. Get in touch today and let’s keep your property comfortable, safe, and efficient.
We’re based in Porth, but we cover all of South and West Wales for boiler and air-conditioning services.
Yes! we’re Gas Safe Registered, Worcester Accredited, Haier Pro Certified, and F-Gas & Refcom Registered for complete peace of mind.
Absolutely. We offer flexible finance options to make upgrading more affordable
We recommend annual servicing to keep your system safe, efficient, and under warranty.
Get a free, no-obligation quote and enjoy year-round comfort in your home or business.
