Get Your FREE Quote

Call Us On  07979 677209

Professional Boiler Installation & Replacement in Porth
& Across South Wales

Trusted by 100+ customers across South Wales
⭐⭐⭐⭐⭐

Your Trusted Boiler Engineer

Looking for trusted boiler installation services in Porth or the wider South Wales area? At MJB Servicing, we supply and fit modern, energy-efficient boilers to keep homes and businesses warm, reliable, and cost-efficient. With over 15 years’ experience, Gas Safe-registered engineers, and more than 100 5-star Google reviews, we’re the go-to heating experts across Rhondda Cynon Taf and beyond.

Why Choose a New Boiler?

  • Energy Efficiency – Modern condensing boilers are up to 30% more efficient than older systems.
  • Lower Bills – Reduce monthly heating costs with improved efficiency.
  • Improved Comfort – Hot water on demand and reliable heating.
  • Reliability – Fewer breakdowns, backed by manufacturer warranties.
  • Environmentally Friendly – Lower emissions and a smaller carbon footprint.

Which Boiler Type Is Right for You?

Combi Boilers

Perfect for: Smaller homes, apartments, and valley terraces

Benefits: Compact and efficient, combi boilers heat water directly from the mains — so there’s no need for a separate hot water cylinder or loft tank. They provide instant hot water on demand and keep your home warm, making them a cost-effective, space-saving option.

System Boilers

Perfect for: Larger family homes in Cardiff, Swansea, and Newport

Benefits: Designed to cope with higher hot water demand, system boilers use a separate unvented cylinder to deliver strong water pressure to taps and showers. They’re ideal if you have multiple bathrooms, and with no need for a loft tank, they free up space while remaining energy-efficient.

Regular (Conventional) Boilers

Perfect for: Older properties and traditional heating systems (common in Aberdare, Pontypridd, and Merthyr)

Benefits: Regular boilers work with both a hot water cylinder and a loft-mounted cold water tank. While less compact than modern alternatives, they’re often the most practical choice for homes with existing pipework and radiator systems that would be difficult or costly to upgrade.

Areas We Cover

Based in Porth, we cover up to a 50-mile radius across South Wales, serving homes and businesses in:

  • Rhondda Cynon Taf: Porth, Tonypandy, Treorchy, Maerdy, Ferndale, Mountain Ash, Hirwaun, Aberdare, Pontypridd, Llantrisant, Talbot Green, Tonyrefail, Llanharan
  • Major Cities: Cardiff, Swansea, Newport
  • Extended Coverage: Caerphilly, Merthyr Tydfil, Vale of Glamorgan, Bridgend, Neath Port Talbot, and southern Powys


No matter where you are within our service area, our engineers deliver fast, professional, and reliable boiler installations.

Is Your Boiler Trying to Tell You Something?

A struggling boiler often gives you warning signs before it completely fails. You may need a replacement if:

  • 🔧 It’s over 10 years old and past its best
  • 🔧 Breakdowns are becoming frequent and repair bills keep adding up
  • 🔧 Energy bills are rising without explanation
  • 🔧 Leaks, drips, or strange noises are coming from the system
  • 🔧 The pilot light flickers or burns with a yellow flame
  • 🔧 Heating and hot water take too long to reach the right temperature

Not sure whether you need a repair or a full replacement? Our friendly, Gas Safe engineers will assess your system and give you honest advice on the most cost-effective solution.

Our Boiler Installation Process

Step 1

Consultation & Home Survey – We assess your current system and recommend the right boiler.

Step 2

Clear Quotation – No-obligation, transparent pricing.

Step 3

Choosing the Boiler – Combi, system, or regular, matched to your home.

Step 4

Installation Day – Safe removal of the old boiler and professional fitting of the new one.

Step 5

Commissioning & Handover – Full system test, Gas Safe certification, and warranty paperwork provided.

Why Choose MJB Servicing Ltd?

At MJB Servicing Ltd, we specialise in delivering efficient, reliable, and modern heating solutions across South Wales. From upgrading to a new energy-efficient Worcester Bosch boiler to carrying out expert installations, repairs, and servicing, our goal is simple: keeping your home warm, safe, and cost-effective all year round.

With training from British Gas and hands-on experience across all major boiler brands, our Gas Safe engineers complete every job to the highest standards, giving you total peace of mind.

  • Gas Safe Registered engineers
  • 15+ years’ experience across South Wales
  • 100+ 5-star Google reviews
  • Worcester Bosch Accredited Installers 
  • Transparent Pricing – No hidden extras
  • 12-Month Guarantee on workmanship + manufacturer warranties
  • Flexible Finance Options – Making upgrades affordable
  • Emergency Availability – Fast call-outs for urgent breakdowns

Contact Our Team

Whether you’re in Porth, Cardiff, Swansea, Newport, or anywhere across Rhondda Cynon Taf and South Wales, our expert boiler installers are here to help.

Phone: 07979 677209
 Email: hello@mjbservicing.com

FAQ

FAQ – Boiler Installations in South Wales

MJB Servicing – trusted for boiler installations across Porth, Rhondda Cynon Taf, and within 50 miles, including Cardiff, Swansea, and Newport.

Yes, we cover up to a 50-mile radius from Porth, including Cardiff, Swansea, Newport, and all of Rhondda Cynon Taf.

Most installations are completed in 1–2 days

We fit all leading brands, specialising in Worcester Bosch and Haier Pro.

Yes – we provide flexible finance plans to spread the cost.

We protect your home, minimise disruption, and clean up afterwards.

Ready to Upgrade Your Heating or Cooling?

Get a free, no-obligation quote and enjoy year-round comfort in your home or business.

Get Your FREE Quote

Reliable Heating & Cooling Experts in The Rhondda​

Quick Links
Contact Information
MJB Servicing, © All Rights Reserved
Site Created By Little Lamb Media