Exterior residential wall with green damp staining on the render and cracks in the lower white masonry

Damp And Condensation Control in Y Gelli Gandryll / Hay-On-Wye , Powys

Call Your Local Y Gelli Gandryll / Hay-On-Wye Expert
01443 809770
Serving Y Gelli Gandryll / Hay-On-Wye & Powys

Expert Damp and Condensation Control in Y Gelli Gandryll and Hay-on-Wye

At Global Energy Insulation, we specialise in comprehensive damp and condensation control solutions for homeowners and landlords across Y Gelli Gandryll, Hay-on-Wye, and the surrounding Powys areas. If you are struggling with black mould, cold walls, or rising energy bills, our PAS 2030 accredited team provides expert diagnostic and remediation services to protect your property. We address the root causes of moisture issues, including thermal bridging and poor ventilation, ensuring your home remains warm, dry, and healthy throughout the year.

South Wales and South West England

01443 809770

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Close-up of a dirty exterior wall with green algae on textured render and a cracking grey lower wall with vents.
PAS 2030 Accredited Damp Specialists

Why Choose Global Energy Insulation for Damp & Condensation Control?

Based in Ferndale and covering a 50–60 mile radius across South Wales and the South West, we specialise in permanent solutions for cold walls, thermal bridging, and persistent black mould. As fully PAS 2030 accredited, CHAS registered, and SWIGA-backed experts, we guarantee our PAS 2035 compliant retrofit services will dramatically improve your EPC rating and safeguard your home against high energy bills. What’s more, by partnering seamlessly with our sister company, Global Plastering, we provide a complete end-to-end service—from advanced damp proofing and insulation to a flawless traditional plaster finish.

Understanding the Root Causes of Your Cold Home

Damp and condensation are often symptoms of a building struggling with thermal efficiency. In many cases, cold walls act as a magnet for moisture, leading to black mould growth that can affect your health and damage the fabric of your home. Our experts look beyond the surface to identify if your property is suffering from thermal bridging, a common issue in solid wall homes, Victorian terraces, or non-traditional builds like Cornish units and Wimpey no-fines houses. By identifying these gaps in your insulation, we can implement targeted solutions that stop heat loss and prevent condensation from forming in the first place.

Our Professional Approach to PAS 2035 Retrofit

As a dedicated PAS 2035 retrofit specialist, we provide end-to-end support for your home improvement project. From the initial professional assessment to the final installation, our team ensures that all work complies with the latest UK building regulations. We don't just treat the symptoms; we improve the whole-house energy performance. Whether you are aiming to improve an EPC rating for MEES compliance or simply wanting to lower your heating costs, our systematic approach ensures every stage of the process is managed with expertise and care.

A Complete Service with Global Plastering

We know that effective damp proofing and insulation work often require high-quality finishing. That is why our sister company, Global Plastering, works in tandem with us to provide a seamless transition from insulation installation to decorative finishes. Whether we are treating internal walls or upgrading external surfaces, you benefit from a complete, end-to-end service. This collaboration ensures that your property is left in pristine condition, ready for painting or decorating, without the need to manage multiple contractors.

Why Choose Our Local Powys Team

Global Energy Insulation is a name you can trust for quality and compliance in South Wales and the South West. We hold full CHAS accreditation and offer SWIGA-backed guarantees for your peace of mind. Every member of our team is committed to providing reliable service that respects your home and your time. We have extensive experience with period properties and non-traditional builds, ensuring that our solutions are appropriate for the specific needs of your building. Don't let damp compromise your comfort any longer. Contact our expert team today on 01443 809770 for a no-obligation survey and take the first step toward a warmer, healthier, and more energy-efficient home. Please use UK Spelling and Grammar.

Why Choose Global Energy Insulation for Damp & Condensation Control?

Your trusted, PAS 2030 accredited specialists based in Ferndale. We deliver lasting thermal bridging solutions, condensation control, and black mould removal across South Wales and the South West.

Local South Wales Experts

Operating from Ferndale, we understand local properties. From solid wall terraces to modern builds, we provide bespoke damp proofing to eliminate cold walls and lower energy bills.

PAS 2030 & PAS 2035 Compliant

As fully certified retrofit assessors and CHAS accredited contractors, our targeted ventilation and EPC improvement services meet the strictest UK building regulations.

Complete End-to-End Service

We handle the structural thermal upgrades seamlessly, whilst our sister company, Global Plastering, provides comprehensive traditional plastering for a flawless interior aesthetic.

SWIGA Guaranteed Protection

Enjoy peace of mind with our solid Insurance Backed Guarantees. We are fully insured and hold a Waste Carriers Licence, ensuring safe, compliant property maintenance.

A close-up of a weathered and algae-stained exterior rendered wall on a house.
Call Now for a Free Quote

Energy Insulation Services Across South Wales and South West England: 01443 809770

What Our Clients Say About Global Energy Insulation

"Fantastic service from the team at Global Energy Insulation. The external wall insulation has made our home noticeably warmer, eliminated cold draughts, and our heating bills have dropped significantly. High-quality work all around."

K. Davies (Swansea)

"As a landlord needing EPC improvements, I highly recommend their PAS 2035 retrofit services. The internal wall insulation was installed professionally, and their sister company, Global Plastering, left a flawless finish."

G. Harrison (Cardiff)

"Professional from start to finish. The loft and cavity wall insulation were completed quickly by a fully accredited team. Having the SWIGA insurance-backed guarantee gives us complete peace of mind."

S. O'Connor (Newport)

FAQ

Frequently Asked Questions

Answers to common questions about our PAS 2030 accredited damp, black mould, and condensation control solutions in South Wales and South West England and throughout South Wales.

Will insulating my walls definitely stop the black mould?

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Yes, in the vast majority of cases. Black mould is usually caused by condensation forming on cold spots. By installing External or Internal Wall Insulation, we raise the surface temperature of your internal walls. When the walls are warm, the moisture in the air stays in the air (to be cleared by ventilation) rather than turning into water on your wallpaper.

What is thermal bridging and why is it making my house damp?

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Thermal bridging happens when a more conductive material (like a solid brick or a concrete lintel) allows heat to bypass your insulation. This creates a "cold bridge." These spots are where you will usually see mould first. Our PAS 2035 assessments identify these bridges so we can "break" them with proper insulation.

Do you offer guarantees on damp proofing and insulation?

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Absolutely. Because we are SWIGA accredited, our external wall insulation comes with a 25-year insurance-backed guarantee. This gives you long-term security that your home will stay dry and warm for decades to come.

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

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Proudly Serving South Wales, The South West & Surrounding Areas

Global Energy Insulation is your trusted local specialist dedicated to providing definitive cold house solutions and drastically reducing heat loss. Operating from our base in Ferndale, we cover a 50–60 mile radius across South Wales and South West England. From premium External Wall Insulation (EWI) and silicone rendering to comprehensive PAS 2035 whole-house retrofit services, we help homeowners and landlords improve EPC ratings and slash high energy bills.

Our Primary Service Areas

South Wales

  • Ferndale & Rhondda Cynon Taf
  • Cardiff, Newport & Swansea
  • Bridgend, Merthyr Tydfil & Caerphilly
  • Brecon & surrounding Valleys
  • Ideal for terraced, semi-detached & solid wall homes

South West England

  • Bristol & Bath
  • Gloucester & Gloucestershire
  • Somerset region
  • Upgrading Victorian, Edwardian & non-traditional builds
  • Expert solutions for thermal bridging

The Global Advantage

  • PAS 2030 compliant & SWIGA backed guarantees
  • CHAS accredited & fully insured (Co. No: 05875199)
  • Effortless MEES compliance for local landlords
  • Seamless interior finishing by our sister company, Global Plastering

Stop Losing Heat Today

Don't wait for another freezing winter—safeguard your home against rising energy costs today.

Call 01443 809770

If your specific location within our 50–60 mile radius isn't listed, please get in touch. We regularly travel across the region to deliver accredited home energy efficiency upgrades.

Our South Wales & South West Coverage

Map shows our extensive service radius across Wales and England for EWI, IWI, rendering, and retrofit projects.

Eradicate Damp, Condensation & Black Mould For Good!
Get your free, no-obligation assessment from South Wales and South West England's PAS 2030 accredited Energy Insulation specialists. Call 01443 809770 today.