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 Caerdydd / Cardiff , Cardiff

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

Get a Free Quote

Call Your Local Caerdydd / Cardiff Expert

07393 355531

Serving Caerdydd / Cardiff & Cardiff

Expert Internal Wall Insulation Services in Cardiff

If you live in a period property or a solid-wall home in Cardiff, you may be familiar with the challenge of cold, draughty walls and rising heating bills. Global Plastering provides specialist internal wall insulation services across Caerdydd and the surrounding 35-mile radius, helping homeowners transform their living spaces. For many Victorian terraces and Edwardian properties where altering the exterior facade is not possible, IWI offers the ideal way to improve thermal efficiency while preserving the character of your home.

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 IWI for your Cardiff property?

Internal wall insulation is highly effective for homes that were built with solid walls rather than cavities. By installing high-performance insulation boards to the interior of your external walls, we significantly reduce heat loss and thermal bridging. This process not only makes your home feel warmer and more comfortable during the winter months but also helps to boost your EPC rating. It is a practical, discreet solution for apartments, terraced houses, and semi-detached homes throughout Cardiff and South Wales.

Our professional installation process

We follow strict PAS 2030 standards to ensure every installation is completed safely and effectively. Our process begins with a professional retrofit assessment to ensure your property is suitable for IWI and to identify any underlying damp issues that need addressing. Once the insulation boards are securely installed, our skilled team performs high-quality dry-lining and skimming. This leaves your walls with a smooth, professional finish that is ready for decoration, ensuring the aesthetic of your home is fully maintained.

Meeting your EPC and energy efficiency goals

With rising energy costs and changing legislation regarding home efficiency, upgrading your property is a wise investment. Whether you are a landlord managing HMOs in Cardiff or a homeowner looking to improve your own comfort, our services are designed to meet modern energy requirements. By reducing the amount of heat escaping through your walls, you can maintain a consistent internal temperature, cut your carbon footprint, and potentially save significantly on your monthly heating expenses.

Trust our PAS accredited experts

Global Plastering is a trusted local company operating throughout South Wales and the South West. We hold full CHAS and PAS 2030 accreditation, and our work comes with SWIGA insurance-backed guarantees for your peace of mind. We are committed to high standards of workmanship, health and safety, and professional conduct. To discuss your property, learn more about the benefits of internal wall insulation, or to book your free survey, please 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 Caerdydd / Cardiff And Surrounding Areas

We Cover All of Cardiff

Penarth Barri / Barry Caerffili / Caerphilly Llantrisant Talbot Green Rhisga / Risca Newport Pontypridd Ystrad Mynach Y Bont-Faen / Cowbridge

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