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 Treharris , Merthyr Tydfil

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

Get a Free Quote

Call Your Local Treharris Expert

07393 355531

Serving Treharris & Merthyr Tydfil

Expert Internal Wall Insulation in Treharris

Global Plastering is a leading provider of internal wall insulation in Treharris, serving homeowners and businesses across the wider Merthyr Tydfil area. If you live in a property with solid walls, such as a traditional Victorian terrace or a non-traditional build, you may notice that your home struggles to retain heat. Our team specialises in delivering high-performance thermal solutions that stop heat loss at the source. We are fully PAS 2030 accredited, ensuring that every project meets strict industry standards for quality and energy efficiency.

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.

Is Internal Wall Insulation Right for Your Treharris Property

Internal wall insulation is the ideal solution when external wall insulation is not a viable option, perhaps due to planning restrictions or the need to preserve the original aesthetic of your property's exterior. Many homes in Treharris and the surrounding Merthyr Tydfil region were built with solid walls that lack cavity space. By installing premium PIR or mineral wool boards to the inner face of your external walls, we can significantly improve your home's thermal comfort. This process is particularly effective for those looking to boost their EPC rating or meet the latest MEES compliance standards for rental properties.

Our Professional Installation and Finishing Process

We take a comprehensive, technical approach to every retrofit project. Our process begins with a detailed assessment to ensure the property is suitable and that the insulation will perform as expected. We then install high-grade thermal boards to the internal surfaces of your exterior walls. Following the insulation, our skilled team provides a professional plastering and skimming service to ensure your walls are left with a flawless, smooth finish that is ready for decorating. Because we are experts in plastering, we guarantee that the final result looks as good as it feels.

Why Choose Our PAS Accredited Local Team

Choosing the right installer is crucial for the long-term success of your energy efficiency upgrades. We prioritise PAS 2035 compliance, which means your project is handled with the rigour required for modern deep-retrofit standards. We also provide SWIGA insurance-backed guarantees, giving you peace of mind that your investment is protected. Whether you own a detached, semi-detached, or terraced house in Treharris, our experienced staff offers the technical expertise to manage the specific challenges of your building type.

Get Your Free Quote and Retrofit Assessment Today

If you are ready to reduce your heating bills and resolve issues with cold, damp walls, our team is ready to assist. We cover a 35-mile radius from Treharris and the wider South Wales and South West England regions, providing bespoke surveys for all our clients. Do not let another winter pass with high energy costs and draughty rooms. Call our specialist team today at 07393 355531 to schedule your free consultation and discover how we can transform your property's thermal performance. Please use UK Spelling and Grammar.

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 Treharris And Surrounding Areas

We Cover All of Merthyr Tydfil

Abercynon Ystrad Mynach Aberpennar / Mountain Ash Bargoed / Bargod Pontypridd Y Coed Duon / Blackwood Pontllanfraith Ferndale Ferndale Merthyr Tudful / Merthyr Tydfil

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