Aged and stained exterior render on a South Wales property.

Solid Wall Insulation in Y Gelli Gandryll / Hay-On-Wye , Powys

Call Your Local Y Gelli Gandryll / Hay-On-Wye Expert
07393 355531
Serving Y Gelli Gandryll / Hay-On-Wye & Powys

Expert Solid Wall Insulation in Y Gelli Gandryll and Hay-On-Wye

Global Plastering provides professional solid wall insulation solutions for homeowners in Y Gelli Gandryll and Hay-On-Wye. Many older properties throughout Powys suffer from significant heat loss because they lack cavity walls, leading to cold living spaces and high energy bills. Whether you own a charming stone cottage, a traditional terrace, or a non-traditional build like an Airey house, our PAS 2030 accredited team offers both External Wall Insulation (EWI) and Internal Wall Insulation (IWI) to transform your home into a thermally efficient, comfortable living environment.

South Wales and South West England

07393 355531

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Our Trusted Partners & Brands

Surveyor inspecting worn exterior render on a house during an external wall insulation and rendering assessment
PAS 2030 & SWIGA Accredited

Why Choose Us for Solid Wall Insulation?

Based in Ferndale and covering South Wales and South West England, Global Plastering is your trusted local partner for tackling cold, hard-to-heat homes. Whether you need External Wall Insulation (EWI) to transform a solid brick property or Internal Wall Insulation (IWI) to preserve a historic Victorian façade, our fully guaranteed retrofit services eliminate thermal bridging, lock in heat, and dramatically improve your EPC rating.

Is your home losing heat through solid walls?

Solid walls are notorious for allowing heat to escape, which often results in condensation, mould, and damp issues in addition to high heating costs. Our specialists assess your property type to determine whether external or internal insulation is the most effective solution. By applying high-performance insulation materials, we help you significantly reduce heat loss and improve your property's EPC rating. This not only makes your home warmer during the winter but also keeps it cooler in the summer, effectively addressing thermal bridging and making your home much more energy-efficient.

Tailored insulation services for local properties

We pride ourselves on our technical expertise across a wide range of building styles common in Powys. From Victorian and Edwardian structures to post-war concrete houses, we understand the specific requirements for different wall compositions. Our installation process is compliant with PAS 2035 retrofit standards, ensuring your project meets rigorous quality control. For those looking to modernise the exterior, our EWI systems can be finished with high-quality, durable silicone renders or decorative finishes, providing a fresh aesthetic while protecting your home from the elements.

Compliance and support for Powys landlords and homeowners

If you are a landlord managing rental properties in Hay-On-Wye, meeting MEES legislation and improving EPC ratings is essential for compliance. Our team provides comprehensive retrofit assessments to help you navigate these requirements efficiently. We are proud to be fully accredited and offer SWIGA insurance-backed guarantees, providing you with peace of mind that our workmanship is protected for the long term. We help you every step of the way, from the initial survey to the completion of high-standard insulation works.

Why choose our team for your retrofit project?

Global Plastering is a trusted local name serving the Y Gelli Gandryll / Hay-On-Wye area and the wider Powys region. We combine years of experience in plastering and rendering with the latest insulation technology to deliver excellent results. As fully insured and licensed professionals, we prioritise safety and quality in every job we undertake. If you are ready to reduce your carbon footprint and lower your energy consumption, contact our expert team today on 07393 355531 to book a professional survey and start your home energy transformation.

Why Choose Global Plastering for Solid Wall Insulation?

Your PAS 2030 accredited energy efficiency experts, delivering premium external and internal wall insulation across Ferndale, South Wales, and the South West.

Local South Wales Experts

Based in Ferndale, we serve a 60-mile radius, specialising in solid brick, Victorian, terraced, and complex non-traditional property retrofits.

PAS 2030 Accredited

As fully PAS 2030 compliant and CHAS accredited installers, we guarantee all EWI and IWI insulation meets strict UK retrofit standards.

SWIGA Backed Guarantees

Enjoy complete peace of mind. Our solid wall insulation installations come with comprehensive SWIGA insurance-backed guarantees.

Lower Bills & Warmer Homes

Transform cold, draughty properties into highly energy-efficient spaces. Our solutions eradicate thermal bridging and significantly improve EPC ratings.

A detached house in South Wales showcasing a new yellow silicone render finish and external wall insulation installation.
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Plastering Services Across South Wales and South West England: 07393 355531

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)

FAQ

Frequently Asked Questions

Answers to common questions about our PAS 2030 accredited solid wall insulation, EWI solutions, and retrofit services in South Wales and South West England and across South Wales.

Does solid wall insulation cause damp?

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When installed correctly by professionals like us, it actually helps prevent damp. By keeping the internal surface of the wall warmer, it stops water vapour in the air from condensing on the wall. We always make sure there is adequate ventilation as part of our PAS 2035 assessment to keep the air fresh and the walls dry.

Do I need planning permission for External Wall Insulation?

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In many cases, EWI falls under "permitted development." However, if you live in a conservation area, a listed building, or if the insulation significantly changes the look of the front of your house, you might need permission. We can help advise you on the local rules in Rhondda Cynon Taf and beyond.

How long does the installation take?

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For a standard semi-detached or terraced home, External Wall Insulation usually takes between 2 to 3 weeks, depending on the weather. Internal insulation can be faster but depends on how many rooms you are doing at once. We always aim to keep the workspace tidy and the disruption to a minimum.

Is it worth the investment?

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Solid wall houses lose about twice as much heat as those with cavity walls. By insulating, you are making a long-term investment that protects the fabric of your building, slashes your carbon footprint, and saves you money every single month on your gas or electric bills.

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

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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 Solid Wall Insulation Survey Today!
Call 07393 355531 to speak with South Wales and South West England's Trusted Plastering Experts