A modern interior featuring a glass staircase, highlighting a warm and well-insulated home, services provided by Global Energy Insulation.

Expert Insulation, Rendering & PAS 2035 Retrofit Across South Wales and South West England & The South West
Eliminate cold walls and high energy bills with our fully accredited retrofit solutions. Enjoy a complete end-to-end service with seamless finishes from our sister company, Global Plastering.

Speak to Our PAS 2030 Team
01443 809770
Covering South Wales & Beyond

Our Premier Sister Company

Global Plastering

We work in close partnership with our sister company, Global Plastering, to deliver seamless finishes and high-quality internal plastering work alongside our external wall insulation and rendering systems.

Approved Supplier Systems We Use

500+
Homes Insulated
100%
PAS 2030 Compliant
SWIGA
Backed Guarantees
20+
Years Experience

Professional Insulation and Retrofit Services Across South Wales and the South West

Welcome to Global Energy Insulation. Based in Ferndale, Rhondda Cynon Taf, we are premier insulation and PAS 2035 retrofit specialists serving homeowners, landlords, and commercial clients within a 50 to 60-mile radius across South Wales and South West England, including Cardiff, Swansea, Newport, Bristol, and Bath. We help resolve the problems of cold houses, damp walls, and high energy bills by installing highly efficient thermal solutions.

Our expert team specialises in External Wall Insulation (EWI), Internal Wall Insulation (IWI), high-performance rendering, and comprehensive loft insulation designed to safeguard your property against rising energy costs. Contact our PAS 2030 accredited team today to book your home energy assessment.

South Wales and South West England

01443 809770

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Our Energy Insulation Work

Why Choose Global Energy Insulation?

Your trusted, PAS 2035 accredited experts in insulation, rendering, and home energy retrofitting across South Wales and the South West. We deliver quality, compliance, and thermal efficiency you can rely on.

Local South Wales Experts

Based in Ferndale, we cover a 60-mile radius across South Wales and the South West, understanding the exact needs of local solid wall, terraced, and non-traditional properties.

Fully Accredited & Trusted

We are PAS 2030 compliant, PAS 2035 Retrofit equipped, SWIGA backed for insurance guarantees, CHAS accredited, and fully insured.

Complete End-to-End Service

From expert internal wall insulation to flawless traditional finishes by our sister company, Global Plastering, we provide a seamless, high-quality transformation.

Slash High Energy Bills

Eliminate cold drafts and thermal bridging. We improve your home energy efficiency, guaranteeing MEES compliance and lowering winter heating costs.

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

Speak to our PAS 2030 accredited team today
A French press and two coffee mugs on a bright kitchen counter in a warm, comfortable home

Why Choose Global Energy Insulation?

As fully PAS 2030 and PAS 2035 accredited retrofit specialists covering South Wales and the South West, we are industry leaders in External Wall Insulation (EWI), Internal Wall Insulation (IWI), and premium rendering solutions. Seamlessly partnering with our sister company, Global Plastering, we provide a complete end-to-end service designed to eliminate cold walls, reduce thermal bridging, and significantly lower high winter energy bills. Backed by SWIGA guarantees and CHAS accreditation, our team ensures your home achieves maximum thermal efficiency and EPC compliance with complete peace of mind.

Why Does Your Property Lose Vital Heat?

Many homes in our region, particularly traditional solid wall Victorian terraces, Edwardian properties, or non-traditional builds like Wimpey no-fines and Cornish units, suffer from severe heat loss. Without proper insulation, up to 35% of your heating escapes straight through uninsulated solid walls, while another 25% is lost through the roof. This leading cause of thermal bridging often results in unsightly black mould, dampness, and cold draughts that make heating your home feel like a losing battle.

By implementing targeted solutions such as external or internal wall insulation, you can establish a continuous thermal envelope. This not only keeps your home warmer in winter and cooler in summer but significantly reduces your heating bills. Talk to our specialist team today about a free, no-obligation quote for external wall insulation.

Our Comprehensive Thermal Performance and Rendering Solutions

At Global Energy Insulation, we deliver a full suite of energy-efficiency upgrades tailored to your building type. Our external wall insulation systems are paired with premium, weather-resistant renders including silicone, monocouche, K Rend, and traditional sand and cement finishes. For properties where external modifications are restricted, such as listed buildings or those in conservation areas, we install high-performance internal wall insulation to protect your living space without altering the exterior character.

To guarantee a seamless end-to-end service, we work hand-in-hand with our sister company, Global Plastering. While we focus on the complex external rendering, structural insulation, and PAS 2035 compliance, Global Plastering handles the fine internal traditional plastering. This ensures your walls are left with a flawless, paint-ready finish once the thermal upgrades are complete.

Meeting Strict UK Building Regulations and Landlord Standards

Navigating local authority planning permissions, conservation rules, and building regulations can be complex. As a fully PAS 2030 compliant and PAS 2035 accredited contractor, Global Energy Insulation provides expert Retrofit Assessor and Coordination support to ensure your project complies with the latest standards. We assist landlords in meeting Minimum Energy Efficiency Standards (MEES) and boosting EPC ratings ahead of strict compliance deadlines, ensuring your rental properties or HMOs remain fully legal and energy-efficient.

We hold a Waste Carriers Licence, carry comprehensive public liability insurance, and are CHAS accredited, proving our commitment to safe and responsible site management. Furthermore, our solid wall installations are fully backed by SWIGA (Solid Wall Insulation Guarantee Agency), providing peace of mind with robust, insurance-backed guarantees.

How Do We Secure Your Warmer Future?

Our process is straightforward, professional, and designed around your needs. From the initial thermal assessment to the final quality sign-off, we handle everything with care and transparency. Whether you are looking to modernise a park home, insulate a commercial warehouse, or upgrade a semi-detached family home, we are here to guide you every step of the way. Registered under Company No: 05875199, we are the trusted local experts you can rely on.

Don't wait for another freezing winter to experience a warmer, healthier home. Contact our CHAS-accredited team today on 01443 809770 to book your professional retrofit assessment or to request a free, no-obligation quote.

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Modern living room with flawless white walls showcasing the premium finish of internal wall insulation by Global Energy Insulation and Global Plastering
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Energy Insulation Services Across South Wales and South West England: 01443 809770

Struggling With High Energy Bills or a Cold House? We Provide Proven Heat Loss Reduction Solutions.

Global Energy Insulation: Leading Insulation & Rendering Experts Across South Wales & the South West

Transform your property, eliminate damp, and safeguard your home against rising energy costs today. From External Wall Insulation (EWI) and Internal Wall Insulation (IWI) to high-quality silicone rendering, we offer complete PAS 2035 whole-house retrofit solutions. Partnering seamlessly with our sister company, Global Plastering, we provide a complete end-to-end service—ensuring strict MEES compliance, solving thermal bridging, and achieving flawless internal and external finishes for solid walls, Victorian terraces, and non-traditional builds.

PAS 2030 & SWIGA Backed

Fully PAS 2030 compliant and SWIGA backed, offering robust Insurance Backed Guarantees. From listed buildings to Wimpey no-fines properties, our CHAS-accredited experts ensure your project meets all UK building regulations.

Slash Bills & Improve EPC Rating

Don't wait for another freezing winter. Our targeted cold wall treatments and insulation systems prevent black mould, stop condensation, and drastically improve your home's energy efficiency and EPC rating.

Complete End-to-End Service

As accredited PAS 2035 Retrofit Assessors, we handle compliance from start to finish. Combined with Global Plastering's traditional plastering expertise, you receive a perfectly finished, stress-free home upgrade.

Why Choose Global Energy Insulation?

Trusted PAS 2035 Retrofit & Insulation Specialists

Struggling with a cold house or high energy bills? Based in Ferndale, we provide industry-leading external wall insulation (EWI), internal wall insulation (IWI), and rendering across South Wales and the South West to maximise your home's thermal efficiency.

Expert Insulation & PAS 2035 Retrofit

From comprehensive PAS 2035 whole-house retrofit assessments to flawless loft, EWI, and IWI installations, we eliminate thermal bridging and deliver ultimate heat loss reduction.

Fully Accredited & SWIGA Backed

We are PAS 2030 compliant, CHAS accredited, and fully insured. We also provide SWIGA-backed Insurance Backed Guarantees, giving you total peace of mind on all solid wall insulation projects.

End-to-End Service with Global Plastering

Alongside our premium exterior rendering (Silicone, Monocouche, K Rend), our sister company, Global Plastering, seamlessly handles all internal traditional plastering for a flawless, hassle-free finish.

Solutions for Every Property Type

Whether you own a solid wall Victorian terrace, a non-traditional Wimpey no-fines, or a commercial warehouse, we tailor our cold wall treatments to meet all UK building regulations.

Slash High Energy Bills

Don't wait for another freezing winter. Our advanced thermal insulation and rendering systems lock in the heat, drastically lowering your heating costs while stopping condensation and black mould.

Landlord MEES & EPC Compliance

Covering Cardiff, Swansea, Bristol, and beyond, we help local landlords and HMO owners seamlessly improve property EPC ratings to meet looming Minimum Energy Efficiency Standards (MEES).

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 2035 compliant insulation, external rendering, and home energy efficiency solutions across South Wales and South West England and the South West.

What is PAS 2035 and why does it matter for my home?

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PAS 2035 is the UK’s quality standard for energy efficiency retrofits. It ensures that any work done to your home is part of a "whole-house" plan rather than a quick fix. By following these standards, we make sure that adding insulation doesn't cause unexpected issues like poor ventilation or damp. It’s your guarantee that the work is being done to the highest professional level.

Should I choose External or Internal Wall Insulation?

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This often depends on your property type and your personal preference. External Wall Insulation (EWI) is usually the most effective as it wraps the entire building in a "thermal blanket" without losing any interior floor space. However, if you live in a conservation area or want to keep the original stone exterior, Internal Wall Insulation (IWI) is a great alternative. We can assess your home and recommend the best path forward.

How long does an EWI installation take and will it be messy?

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A typical EWI project takes between two to four weeks depending on the size of the house and the weather. We use scaffolding to access the walls, and while there is some noise during the fixing process, we take great care to keep the site clean. We manage all waste removal as part of our service, so you won't be left with a mess to clear up.

Does insulation really help with black mould?

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Yes, in many cases. Black mould often grows because warm, moist air inside the house hits a cold, uninsulated wall and turns into water (condensation). By insulating the wall, you make the surface warmer, which prevents that condensation from forming in the first place. Combined with the proper ventilation we install as part of our PAS 2035 process, this is the most effective way to stop mould for good.

What kind of guarantee do I get with my insulation?

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For our solid wall insulation services, we provide a 25-year guarantee through SWIGA. This is an insurance-backed guarantee, which means even if the installer were to stop trading, your investment is still protected. We also hold full public liability insurance and are CHAS accredited, showing our commitment to safety and quality.

Can you help with rendering if I don’t need insulation?

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Absolutely. While we are experts in energy efficiency, we also provide high-quality rendering services through Global Energy Insulation and our sister company Global Plastering. Whether you need a through-coloured Monocouche render, a flexible Silicone render, or traditional sand and cement, we have the skills to give your property a professional finish.

Where do you work?

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We are based in Ferndale, Rhondda Cynon Taf, and we travel roughly 60 miles for our projects. This includes all of South Wales—Cardiff, Swansea, Newport, Bridgend, and Merthyr—as well as across the bridge into Bristol, Bath, Gloucester, and parts of Somerset.

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

Call Us Now

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 and protect your home from rising energy costs!
Call 01443 809770 to speak to South Wales and South West England's trusted Energy Insulation and PAS 2035 retrofit specialists.