Unit 7, Oakland's Business Park, Ferndale, CF43 4UG

charlotte@globalplastering.co.uk

Call Us: 07393 355531

Modern house with exposed blockwork prepared for external wall insulation and rendering in South Wales

Internal Wall Insulation in Aberpennar / Mountain Ash , Rhondda Cynon Taf

Name: Global Plastering
Address: Unit 7, Oakland's Business Park, Ferndale, CF43 4UG, GB
Telephone: 07393 355531

Get a Free Quote

Call Your Local Aberpennar / Mountain Ash Expert

07393 355531

Serving Aberpennar / Mountain Ash & Rhondda Cynon Taf

Specialist Internal Wall Insulation in Aberpennar and Mountain Ash

Living in an older home in Aberpennar or Mountain Ash often comes with the charm of traditional architecture but also the frustration of cold, draughty walls. At Global Plastering, we provide expert internal wall insulation (IWI) services designed specifically for the unique property types found across Rhondda Cynon Taf. Whether you reside in a Victorian terrace or a non-traditional build such as an Airey or Cornish unit, our team delivers thermal upgrades that turn freezing rooms into comfortable, energy-efficient living spaces.

South Wales and South West England

07393 355531

Get An Estimate

Our Trusted Partners & Brands

01.

Internal Wall Insulation

Reduce heat loss and improve your property's EPC rating with our PAS 2030 accredited internal wall insulation. Ideal for solid wall homes across Ferndale and South Wales.

02.

Plastering & Skimming

Achieve flawlessly smooth walls and ceilings. Our expert plastering guarantees the perfect finish after any dry lining or internal insulation installation.

03.

External Wall Insulation

Transform your home's exterior whilst slashing energy bills. Our EWI systems eliminate thermal bridging and revitalise your property's aesthetics.

04.

PAS 2035 Retrofits

Fully compliant, whole-house retrofit solutions for domestic and commercial properties. We navigate complex standards to decarbonise your building efficiently.

Freshly plastered and skimmed white walls in a modern dining room completed by Global Plastering in South Wales

PAS 2030 Accredited IWI Installers

Expert Internal Wall Insulation Across South Wales

Based in Ferndale, Global Plastering provides highly efficient internal wall insulation (IWI) for properties throughout a 60-mile radius, covering South Wales and South West England. From solid wall Victorian terraces to complex commercial retrofits, our PAS 2035 compliant solutions drastically reduce heat loss, lower soaring energy bills, and instantly improve your EPC rating.

Why choose internal wall insulation for your local property?

For many homeowners in the region, external wall insulation is not always an option due to conservation area restrictions or the aesthetic nature of the original brickwork. Internal wall insulation serves as the perfect solution. By applying high-performance insulation boards to the inner face of your external walls, we significantly reduce heat loss. This process is highly effective at raising your property's EPC rating and slashing monthly energy bills, which is essential for managing costs during our colder Welsh winters.

How does our PAS 2035 retrofit process work?

We pride ourselves on being fully PAS 2030 accredited and strictly following PAS 2035 retrofit standards. Our process begins with a comprehensive, professional survey of your home in Mountain Ash to assess current thermal performance and moisture levels. We then install premium insulation boards, integrated with precise vapour control layers to manage humidity and prevent damp issues. The installation concludes with a high-quality plaster finish, leaving your walls smooth, warm, and ready for your choice of paint or wallpaper.

Can IWI help with damp and cold room problems?

Cold walls are frequently associated with surface condensation and mould growth, especially in older solid-wall homes across South Wales. Our professional IWI installation addresses the root cause of these issues by elevating the surface temperature of your internal walls. This prevents the warm air in your home from condensing on cold surfaces, which is a key step in protecting your property structure and improving your indoor air quality. It is a proactive measure that creates a healthier, more consistent climate inside your home.

Trusted energy efficiency experts in Rhondda Cynon Taf

Global Plastering is your local, reliable partner for property transformation. With CHAS accreditation and access to SWIGA insurance-backed guarantees, we offer homeowners and landlords throughout Aberpennar and the wider Rhondda Cynon Taf area absolute peace of mind. We are committed to high-standard workmanship and professional compliance, ensuring your investment enhances your home for years to come. To discuss your project and book a free survey, contact our team today at 07393 355531.

Why Choose Global Plastering?

Your trusted, PAS-accredited experts in internal wall insulation, delivering outstanding energy efficiency and flawless finishes across Ferndale, South Wales, and the South West.

Local South Wales Experts

Based in Ferndale, we cover a 60-mile radius through to Bristol. We possess deep expertise in retrofitting Victorian, terraced, and solid wall properties.

Fully PAS 2030 Accredited

We are fully PAS 2030 compliant and CHAS registered. We provide comprehensive SWIGA insurance-backed guarantees for absolute peace of mind.

Flawless Plastered Finishes

Internal wall insulation involves careful dry-lining and skimming. As highly experienced plasterers, we ensure your newly insulated walls are impeccably smooth.

Lower Bills & Better EPC

Tackle soaring energy costs, draughts, and cold spots. Our tailored IWI solutions reduce heat loss and guarantee vital improvements to your property's EPC rating.

Internal wall insulation being installed with Mannok PIR boards between timber studs in a South Wales property.

Call Now for a Free Quote

Plastering Services Across South Wales and South West England: 07393 355531

Internal Wall Insulation in Aberpennar / Mountain Ash And Surrounding Areas

We Cover All of Rhondda Cynon Taf

Ferndale Ferndale Abercynon Treharris Aberdare Merthyr Tudful / Merthyr Tydfil Tonypandy Rhondda Pontypridd Treorci / Treorchy

What Our Clients Say About Global Plastering

"Excellent work the team removing our old 1970's cladding and replacing it with insulation and a rendered finish. The job went smooth from start to finish with all old materials removed from site. We are very pleased with the end result and would thoroughly recommend Global Plastering."

A. Jenkins (Ferndale)

"Dilwyn and his team were brilliant and made a lovely job of our EWI. They were very friendly, hard-working, and left no mess at the end of each day. Our house looks great and we can definitely feel the benefits of the insulation already. I'm very glad we chose EWI especially with energy costs as they are now."

G. Toogood (Bristol)

"Charlotte and the team were professional, reliable, and excellent at communicating throughout. They did a fantastic job of skimming and rendering the back of our house during our renovation. Superb quality of work and highly recommended!"

M. Lewis (Cardiff)

Check Our Google Reviews

FAQ

Frequently Asked Questions

Answers to common questions about our internal wall insulation services, heat loss solutions, and PAS 2030 compliant retrofits in South Wales and South West England.

How much space will I lose inside my rooms?

This is a common concern for homeowners in Ferndale. Modern high-performance insulation boards are incredibly efficient, meaning we can achieve great thermal results with relatively thin materials. You will typically lose about 60mm to 100mm on the treated walls. Most customers find this small trade-off is well worth it for a home that is significantly warmer and cheaper to run.

Will IWI cause damp or condensation in my home?

When installed correctly by experts like us, IWI actually helps reduce the risk of surface condensation. By warming up the internal surface of the wall, you remove the "cold spot" where moisture in the air usually settles. We use vapour control layers and ensure proper ventilation is maintained to keep your home healthy and breathable.

Can I still hang pictures and shelves on insulated walls?

Yes, you certainly can. While you need to be mindful of the depth of the insulation, we can advise you on the best fixings to use. For heavy items like radiators or kitchen cupboards, we plan ahead and install "pattresses" or extra timber supports behind the boards during the installation process.

Is there a lot of mess during the installation?

We won't sugar-coat it—any internal work involves some disruption. However, we pride ourselves on being respectful guests in your home. We cover flooring, protect your furniture, and clear away all debris. Because we are professional plasterers by trade, we ensure the finish is top-tier, leaving you with a blank canvas ready for paint.

Still have questions? Contact our South Wales and South West England Plastering experts today!

Call Us Now

Proudly Serving South Wales & South West England

Global Plastering are your trusted, PAS 2030 accredited insulation and rendering experts. Based in Ferndale, Wales, we cover a 60-mile radius, providing high-quality external wall insulation (EWI), internal wall insulation (IWI), and premium silicone rendering to reduce energy bills and transform cold houses. Explore our primary service areas below.

Our Key Service Areas

South Wales

Rhondda: Ferndale, Pontypridd, Porth
Cities: Cardiff, Swansea, Newport
Surrounding: Bridgend, Merthyr Tydfil
Specialists in upgrading terraced and solid wall homes
Experienced in Cornish and Airey non-traditional builds

South West England

Bristol and the M4 Corridor
Bath, Gloucester, and Cheltenham
North Somerset and surrounding borders
Expert rendering for Victorian and Edwardian properties
Commercial insulation and decarbonisation projects

PAS Accredited Experts

Fully PAS 2030 and PAS 2035 compliant
SWIGA insurance-backed guarantees provided
CHAS registered for commercial health & safety
Deep understanding of MEES compliance for HMOs

Book a Free Retrofit Survey

Contact Global Plastering today for a no-obligation quote on insulation, rendering, or plastering across Wales and the South West.

Call 07393 355531

If your specific location within our 60-mile radius isn't listed, please don't hesitate to get in touch. We cover all domestic, commercial, and landlord properties within this area.

Our Operating Radius & Coverage

Map shows our primary service areas across South Wales and South West England.

Book Your Free Internal Wall Insulation Survey Today!
Call South Wales and South West England's Trusted Plastering Experts on 07393 355531

07393 355531 charlotte@globalplastering.co.uk