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A newly finished room with pristine white plastered walls and grey carpet, showcasing the high-quality finish after internal wall insulation by Global Energy Insulation in South Wales.

Room In Roof Insulation in Y Gelli Gandryll / Hay-On-Wye , Powys

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01443 809770
Serving Y Gelli Gandryll / Hay-On-Wye & Powys

Expert Room In Roof Insulation in Y Gelli Gandryll and Hay-on-Wye

Living in a home with a converted attic space in Y Gelli Gandryll or Hay-on-Wye often means battling with fluctuating temperatures. Many period properties across Powys suffer from significant heat loss through uninsulated sloping ceilings, leaving rooms feeling chilly in winter and stiflingly hot during the summer. At Global Energy Insulation, we specialise in high-performance room in roof insulation designed to eliminate draughts, stop thermal bridging, and significantly reduce your energy bills. Whether you are dealing with an older cottage or a mid-century conversion, our team provides the expert insulation solutions needed to make your home comfortable year-round.

South Wales and South West England

01443 809770

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Loft Insulation by Global Energy Insulation

01.

Loft Insulation

Stop heat escaping through your roof and slash your energy bills. Our professional loft insulation services offer a quick, cost-effective way to keep your South Wales home warm this winter.

Internal Wall Insulation by Global Energy Insulation

02.

Internal Wall Insulation

Ideal for solid wall properties. We install high-performance IWI, drastically improving thermal efficiency. Finished flawlessly by our sister company, Global Plastering.

PAS 2035 Retrofit by Global Energy Insulation

03.

PAS 2035 Retrofit

As fully accredited PAS 2030 and PAS 2035 experts, we provide whole-house retrofit assessments and co-ordination, ensuring total compliance and maximum energy savings.

External Wall Insulation by Global Energy Insulation

04.

External Wall Insulation

Transform your home's exterior whilst eliminating cold draughts and damp. Our EWI systems include a beautiful silicone render finish, boosting both EPC ratings and kerb appeal.

Newly installed plasterboard on walls and ceiling ready for plastering during an internal insulation project
PAS 2035 Accredited Experts

Why Choose Our Room In Roof Insulation Services?

Based in Ferndale and proudly serving South Wales, Global Energy Insulation helps homeowners effectively insulate any attic space or loft. Whether you live in a detached property or an older solid wall home, our PAS 2030 certified room in roof insulation is designed to reduce heat loss, keep your property warm, and drastically lower energy bills and winter heating costs.

Working seamlessly with our sister company, Global Plastering, we offer a complete end-to-end service—from the initial thermal upgrades to flawless traditional plastering. Trust our highly regulated, SWIGA-backed team to improve your home's energy efficiency. Contact us on 01443 809770 today to request a free quote and explore the solutions available for your houses and homes.

Why is my attic room so cold and damp?

Thermal bridging is the primary culprit for heat loss in many homes throughout Mid Wales. Without proper insulation, the structure of your roof acts as a cold conductor, pulling warmth out of your living space and allowing moisture to settle on cold surfaces. This leads to condensation, black mould, and a plummeting EPC rating. Our PAS 2030 accredited installation process addresses these structural weak points directly. By creating a continuous thermal barrier, we ensure that your hard-earned heating stays inside your home rather than escaping through the roof.

Our PAS 2035 approach to whole-house efficiency

We take a rigorous, data-led approach to every project. As PAS 2035 specialists, we ensure that your insulation upgrade is not just a quick fix but a long-term improvement that considers your property's specific ventilation and moisture management needs. This is particularly important for landlords in Y Gelli Gandryll and Hay-on-Wye who need to meet updated MEES (Minimum Energy Efficiency Standards). Our team manages the process from the initial retrofit assessment through to installation and certification, ensuring full compliance and peace of mind.

Seamless installation and internal finishing

We recognise that insulation work often feels invasive, which is why we offer a comprehensive, tidy, and professional service. Because we work alongside our sister company, Global Plastering, we provide a complete end-to-end experience. Once our insulation experts have fitted the thermal materials, our plastering team ensures that your walls and ceilings are finished to an impeccable standard, ready for decoration. This partnership removes the stress of hiring separate contractors and ensures the job is finished correctly from start to finish.

Local experts committed to Powys home improvements

Global Energy Insulation is a local, fully insured company (Registered Company No: 05875199) with a proud track record of serving residents across South Wales and the South West. We are SWIGA backed, meaning your investment is protected by insurance-backed guarantees. We operate within a 35-mile radius of Y Gelli Gandryll and Hay-on-Wye, providing reliable, expert care for homeowners looking to improve their home energy efficiency. With our waste carriers licence and CHAS accreditation, you can trust that your project is in safe, professional hands. To get started with a free, no-obligation quote, please call our team today on 01443 809770.

Why Choose Global Energy Insulation?

Your trusted, PAS 2030 accredited retrofit experts. We help homeowners and landlords across South Wales and the South West reduce heat loss, slash winter energy bills, and improve EPC ratings.

Local South Wales Experts

Based in Ferndale, we proudly cover a 60-mile radius across South Wales and the South West, understanding the exact insulation needs of local property types.

Fully PAS Accredited

We are PAS 2030 compliant and offer PAS 2035 Retrofit assessor support. CHAS accredited, fully insured, and holding a valid Waste Carriers Licence for your peace of mind.

Complete End-to-End Service

From the initial room in roof insulation to flawless interior finishing by our sister company, Global Plastering, we manage your entire project effortlessly.

Guaranteed & Transparent

SWIGA backed for Insurance Backed Guarantees. We provide upfront, transparent quotes so you can safeguard your home against rising costs without hidden charges.

Newly installed plasterboard on walls and ceiling with taped and jointed seams during an internal wall insulation or renovation project
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Energy Insulation Services Across South Wales and South West England: 01443 809770

Room In Roof Insulation in Y Gelli Gandryll / Hay-On-Wye And Surrounding Areas

We Cover All of Powys

Talgarth Llanfair-Ym-Muallt / Builth Wells Aberhonddu / Brecon Crickhowell Y Fenni / Abergavenny Brynmawr Nantyglo Glyn Ebwy / Ebbw Vale Blaenavon Y Blaenau / Blaina

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)

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Room In Roof Insulation FAQs

Frequently Asked Questions

Answers to common questions about our PAS 2030 accredited room in roof insulation, reducing heat loss, and lowering high winter energy bills across South Wales and South West England, Ferndale, and South Wales.

How long does it take to insulate a room in the roof?

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Most projects are finished within 2 to 4 days, depending on the size of the attic and the complexity of the slopes. Because we handle the plastering through Global Plastering, we keep the timeline tight and avoid the delays that come with waiting for different trades to arrive.

Will I lose a lot of space in my room after insulation?

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Modern insulation boards are incredibly efficient, which means we can achieve great thermal results with relatively thin materials. You might lose a small amount of space from the walls or ceiling—usually only a few centimetres—but the trade-off in comfort and lower bills makes it a very worthwhile investment.

Can I get help with the costs of insulation in South Wales?

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There are often government grants or local authority schemes available for energy-efficiency improvements, especially for properties with low EPC ratings or for households meeting certain criteria. As PAS 2035 specialists, we can help you understand what support might be available for your specific home.

What is the difference between loft insulation and room in roof insulation?

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Standard loft insulation involves laying mineral wool on the floor of an unused attic space. Room in roof insulation is much more detailed; it involves insulating the actual slopes, vertical walls, and flat ceiling of a lived-in space to create a "thermal envelope" around the room itself.

How do I know if my attic room is already insulated?

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If the room feels significantly colder than the rest of the house, or if you can hear a lot of external noise, it’s likely poorly insulated. We can perform a quick assessment to check the current levels and show you where improvements can be made.

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.

Get a free, no-obligation quote for your Room in Roof Insulation today!
Call 01443 809770 to speak with South Wales and South West England's trusted PAS 2030 accredited Energy Insulation experts.

01443 809770 info@globalenergyinsulation.co.uk