info@globalenergyinsulation.co.uk

Call Us: 01443 809770

Modern glass staircase and smooth white plastered walls in a thermally efficient home following internal wall insulation

Internal Wall Insulation in Merthyr Tudful / Merthyr Tydfil , Merthyr Tydfil

Name: Global Energy Insulation
Telephone: 01443 809770

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Call Your Local Merthyr Tudful / Merthyr Tydfil Expert

01443 809770

Serving Merthyr Tudful / Merthyr Tydfil & Merthyr Tydfil

Professional Internal Wall Insulation in Merthyr Tudful

If you live in a period home or a solid wall property in Merthyr Tudful, you are likely all too familiar with the feeling of cold walls and rising energy costs. Global Energy Insulation provides expert Internal Wall Insulation (IWI) services designed to transform your living space into a warm, energy-efficient sanctuary. As specialists in PAS 2035 retrofitting, we understand the unique challenges of local housing stock, from traditional stone terraces to non-traditional builds. We help homeowners and landlords across the region reduce heat loss and improve their EPC ratings through expert-led thermal solutions.

South Wales and South West England

01443 809770

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01.

External Wall Insulation

Protect your home against heat loss and slash high energy bills. Our PAS 2030 accredited team installs premium EWI systems across South Wales to improve your EPC rating.

02.

PAS 2035 Retrofit

Ensure your property meets UK building regulations and MEES compliance. We provide comprehensive whole-house retrofit assessments and expert coordination.

03.

Room in Roof Insulation

Maximise thermal efficiency in your loft spaces. We eliminate cold draughts and thermal bridging, with flawless internal finishes by our sister company, Global Plastering.

04.

Silicone Rendering

Upgrade your property's exterior with highly durable, weather-resistant silicone rendering. An aesthetically pleasing finish that perfectly complements our solid wall insulation.

A modern open-plan dining room with smooth white walls and blue chairs, demonstrating a high-quality interior finish following internal wall insulation

PAS 2035 Accredited IWI Specialists

Why Choose Us for Internal Wall Insulation in Ferndale?

Why choose IWI for your Merthyr Tudful property?

Solid wall properties often lose a significant amount of heat through their external walls, leading to expensive heating bills and persistent condensation issues. Our IWI process involves the precise installation of high-performance thermal boards, which act as a shield against the elements. By effectively eliminating thermal bridging, we ensure your home retains heat much longer, helping you move away from reliance on costly heating systems. This is an ideal solution for properties where external insulation might not be possible due to planning restrictions or architectural features.

A complete end-to-end service with expert finishing

We pride ourselves on providing a seamless experience from the initial assessment to the final decorative finish. While our team at Global Energy Insulation handles the technical aspects of thermal board installation and PAS 2035 compliance, we work in partnership with our sister company, Global Plastering. This ensures that once your insulation is installed, you receive a professional plastering service that leaves your walls ready for decorating. You get the benefit of a warmer home without the hassle of coordinating multiple contractors.

Quality assurance and local regulatory compliance

Compliance is at the heart of everything we do. As a fully PAS 2030 accredited and CHAS registered company, we strictly adhere to the latest UK building regulations and the specific requirements of the PAS 2035 retrofit standards. Whether you are a landlord needing to meet MEES requirements for an HMO or a homeowner looking to improve your EPC rating, our team ensures your property meets all necessary criteria. We are also SWIGA-backed, meaning our work comes with insurance-backed guarantees for your complete peace of mind.

Getting started with your thermal upgrade

Improving the energy efficiency of your home is a smart investment that pays off in lower monthly bills and a more comfortable living environment. If you are ready to address cold spots and dampness in your Merthyr Tudful property, we are here to help. Our team is dedicated to providing high-quality solutions tailored to the needs of South Wales homeowners. Get your free, no-obligation quote today by calling our expert team on 01443 809770. Please use UK Spelling and Grammar.

Why Choose Global Energy Insulation?

Your trusted PAS 2035 retrofit and internal wall insulation experts, delivering dramatic heat loss reduction, lower energy bills, and guaranteed peace of mind across Ferndale, South Wales, and the South West.

Local South Wales Experts

Based in Ferndale, we cover Rhondda Cynon Taf and a 60-mile radius, providing tailored cold house solutions for all local property types, from solid stone to terraces.

PAS 2030 & SWIGA Backed

Fully PAS 2030 compliant, CHAS accredited, and SWIGA backed, meaning your IWI installation comes with complete protection and robust Insurance Backed Guarantees.

Complete End-to-End Service

Working seamlessly with our sister company, Global Plastering, we manage everything from premium thermal boarding to a flawless, ready-to-decorate internal finish.

Lower Bills & Better EPC

Stop thermal bridging and eliminate damp. Our cold wall treatments drastically cut winter heating costs and instantly improve your property's EPC rating.

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.

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

Internal Wall Insulation in Merthyr Tudful / Merthyr Tydfil And Surrounding Areas

We Cover All of Merthyr Tydfil

Aberdare Rhymni / Rhymney Aberpennar / Mountain Ash Tredegar Treharris Ferndale Ferndale Abercynon Bargoed / Bargod Glyn Ebwy / Ebbw Vale

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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FAQ

Frequently Asked Questions

Answers to common questions about our internal wall insulation and PAS 2035 retrofit services in South Wales and South West England and across South Wales.

How much space will I lose with Internal Wall Insulation?

This is a common concern for homeowners in smaller terraced houses. Modern high-performance insulation boards are incredibly efficient, meaning we can achieve great results with boards as thin as 50mm to 100mm. While you will lose a tiny bit of floor space, the trade-off is a room that is actually usable and warm all year round.

Does IWI cause damp or mould?

If installed incorrectly by an unaccredited builder, IWI can cause issues. However, because we follow PAS 2035 standards, we assess the ventilation of your home as part of the process. We use vapour barriers and ensure proper airflow so that moisture doesn't get trapped. When done right, IWI actually reduces the risk of surface mould by getting rid of cold spots on your walls.

How long does it take to insulate a room?

A typical room can usually be insulated and boarded within a couple of days. The plastering and drying time will add a bit more to the schedule. Because we use our own sister company, Global Plastering, we can move from insulation to finishing much faster than companies that have to wait for external subcontractors to become available.

Is there funding available for IWI in Rhondda Cynon Taf?

There are often various government grants available, such as ECO4 or the Great British Insulation Scheme, depending on your circumstances and your property's current EPC rating. As PAS 2030 installers, we can often help you navigate these options. Even if you aren't eligible for a grant, the long-term savings on your energy bills make IWI a very smart investment.

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.

Stop heat loss and lower your energy bills with expert internal wall insulation! Get your free, no-obligation quote today.
Call South Wales and South West England's trusted Energy Insulation and PAS 2035 specialists on 01443 809770.

01443 809770 info@globalenergyinsulation.co.uk