Energy Efficient Wall Coating Specialists
At Home Energy Save GB, we install advanced wall coating systems to British Standards, helping homeowners boost energy efficiency, reduce condensation risk, and enhance long-term protection for their property.
WHY CHOOSE US?
Energy efficient wall coatings help protect external walls while improving thermal performance. Home Energy Save GB can assess your property to confirm suitability, checking for moisture issues or surface defects before application.
- Experienced & Qualified Local Surveyors
- 40+ Years Experience
- KIWA Accredited
- 5 Star Google Reviews
- 25 Year Guarantee On All Services
Book your FREE Comprehensive Damp Survey now or call us on 0800 065 4044 to take the first step towards a drier and healthier home.
Book Your FREE Survey Here
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Customer Reviews
EXCELLENT Based on 1723 reviews Posted on Tom OgdenTrustindex verifies that the original source of the review is Google. Eiick, was absolutely brilliant! Very experienced and diagnosed the problem immediately. Repair organised.Posted on Francisca CTrustindex verifies that the original source of the review is Google. Larry came around , gave a thorough explanation of how to sort out the loft and improve my energy efficiency.He was very professional and arrived on time.Posted on carl athertonTrustindex verifies that the original source of the review is Google. Alex and ben Arrived half an hour early. Walked me round everything that they was going to do. They then set about doing the tasks with complete professionalism. When they had finished they showed me everything that was done. They left the place clean and tidy. Highly recommendPosted on Becky CheadleTrustindex verifies that the original source of the review is Google. Brilliant service,even helped me move a bed🙂Posted on Georgie AlexanderTrustindex verifies that the original source of the review is Google. We had our survey done, by Phil. He was very knowledgeable in the field, and walked us through the solutions we need to take. Our treatment was carried out by Craig, who took special care of all household items, whilst carrying out the treatment. Craig made sure to explain the best methods of cleaning the treatment. Would highly recommend! Thank youPosted on Leah Warner-TedaldiTrustindex verifies that the original source of the review is Google. We had Kai and Sam come to do isotherm insulation on our walls. They were great, really upbeat and friendly. They worked really hard and left the place so tidy. The work looks good so far! Review is done on the day of completion Update: we had a lot of trouble with this company in the end. The plastering work ended up needing to be redone. It took 6 weeks for it to be redone and we were left with a completely unusable room and really bad communication. There were so many times when I rang through to the switchboard and escalated matters for nothing to happen. We felt totally helpless and stranded. I have since tried to get through to their complaints team to no avail. We had the isotherm sheeting fixed which was then skimmed over the top. Once this had set you could quite easily push it in with your finger, denting it (see pic of finger dents). The company surveyor (who we asked to be sent round) said that this was expected and how the isotherm works (I would not recommend!) Luckily they sent a plasterer round to fix it, and he said the whole thing (isotherm and all) needed to be redone, and he redid it all. It now looks really good and doesn’t dent with your finger. TBH I wouldn’t recommend this company, I found them impossible to get in touch with and just gatekept at a switchboard and left us in a really vulnerable position and took 6 weeks to fix it.Posted on Monika NiebojTrustindex verifies that the original source of the review is Google. Larry has arrived today with lots of helpful information, been very polite and understanding. Definitely recommended :)Posted on Amanda WilliamsTrustindex verifies that the original source of the review is Google. Ellick came to visit us today, was absolutely lovely, very friendly and explained everything in detail, would definitely recommend!Posted on paul coplandTrustindex verifies that the original source of the review is Google. Had John and Ron at my house this morning fitting a new damp course. They were both friendly and professional. They turned up at my property on time, did a very neat job, explained everything that they were going to do and cleaned up after they had finished.Posted on James WaltonTrustindex verifies that the original source of the review is Google. Larry was very professional! He is very knowledgeable and helped me diagnose my damp issue.
What is an Energy Efficient Wall Coating?
An energy-efficient wall coating is a specially formulated exterior or interior paint that helps regulate your home’s temperature. At Home Energy Save GB, we use advanced coatings with thermal insulation properties that reflect heat in summer and retain warmth in winter.
This reduces your reliance on heating and cooling systems, lowering energy bills and increasing comfort year-round. Ideal for homeowners and landlords looking to improve energy performance, these coatings also protect walls from weather damage and damp. It’s a smart, cost-effective upgrade that enhances property value while cutting carbon emissions.
What is the Energy Efficient Wall Coating Application Process?
Pre-Wash
Power-washing eliminates algae, moss and lichens. This also exposes any flaws in the surface, which are then repaired.
Biocide Treatment
After any necessary repairs, the wall is sterilised with a biocide treatment, which ensures no regrowth of any living organisms can grow through the coating.
Microporous Wall Coating
Application of microporous coating, which gives a waterproof surface but allows the wall to breathe.
Post-Treatment/Drying
One hour after application, the wall is drying. Allowing two days to dry, the external walls masonry will return to their natural appearance following the process.
Signs You Need an Energy Efficient Wall Coating
Cold or Draughty Rooms
If your home feels chilly even with the heating on, your walls could be losing valuable warmth.
Rising Energy Bills
Higher heating costs often point to poor wall insulation and unnecessary heat loss.
Damp, Mould, or Mildew
Moisture on internal walls is a sign that water is penetrating through your exterior surfaces.
Peeling Paint or Cracked Render
Visible damage to exterior walls allows weather in—and heat out.
Discoloured or Stained Walls
Green staining, algae, or water marks suggest your walls are absorbing rather than repelling moisture.
Old or Untreated Exterior Walls
If your property hasn’t had exterior maintenance in years, it’s likely underperforming in energy retention.
Benefits of Timber Treatment

Lower Energy Bills

Improved Thermal Insulation

Long-Term Damp

Protection

Enhanced Kerb Appeal

Low-Maintenance Finish

Extended Wall Lifespan
Free Damp Survey with Home Energy Save GB
Protect your home from costly damp problems with our free, no-obligation survey. At Home Energy Save GB, we assess for signs of moisture, heat loss and damage to external walls. These are common causes of rising energy bills and uncomfortable living conditions.
Our experts will check if your property is suitable for an energy efficient wall coating, which creates a breathable and waterproof barrier that helps prevent damp while improving insulation. Avoid future repair costs and reduce heat loss by booking your free damp survey today.
How Does an Energy Efficient Wall Coating Work?
An energy efficient wall coating works by forming a protective, breathable layer on your property’s exterior walls. This advanced coating repels rainwater while still allowing trapped moisture inside the walls to escape. By keeping the walls dry, it improves their ability to retain heat, which helps reduce heat loss and makes your home warmer and more comfortable.
The coating also protects against damage from the weather, such as cracking, staining and damp penetration. Over time, this helps lower your energy bills, reduces maintenance costs and extends the life of your exterior walls while improving the overall appearance of your home.
Our Latest Penetrating Damp Blogs
Frequently Asked Questions
Are energy efficient wall coatings suitable for all types of homes?
Energy efficient wall coatings are suitable for most types of residential properties, including brick, stone and rendered homes. However, suitability can depend on the current condition of your walls, the level of existing insulation and any previous treatments applied. That is why we always recommend a professional survey first to assess whether your property will benefit. Homes with solid walls or those experiencing damp, flaking paint or heat loss are usually excellent candidates. If your property is a listed building or in a conservation area, additional permissions may be needed before work can begin.
Will an energy efficient wall coating stop damp and mould?
Yes, an energy efficient wall coating is highly effective in preventing external damp from penetrating your walls. By creating a waterproof yet breathable layer, it stops rainwater from being absorbed into the wall surface. At the same time, it allows internal moisture to escape, which helps prevent condensation build-up that can lead to mould and mildew. While the coating does not fix internal plumbing leaks or rising damp, it significantly reduces the risk of penetrating damp caused by driving rain.
How is the energy efficient wall coating applied?
The coating is typically applied using specialist spray equipment by trained technicians. The process starts with a full property survey, followed by surface preparation which includes cleaning, repairing cracks, and applying a primer if needed. Protective masking is used to shield windows, doors and any surrounding areas. Once the surface is ready, the coating is sprayed on in even layers to ensure a consistent, professional finish. The product then cures and bonds to the wall, forming a strong, long-lasting barrier. The entire process is usually completed in one to two days depending on the size and condition of the property.
Does it affect the appearance of my home?
Yes, and in a positive way. Energy efficient wall coatings not only improve performance but also enhance the visual appearance of your property. They offer a clean, smooth and consistent finish that covers up stains, cracks and flaking paint. Coatings are available in a range of colours and textures to suit your preferences and property style. The result is a freshly restored exterior that looks smart and well maintained. Many homeowners report that the coating gives their property a more modern, well-kept appearance, which can even increase kerb appeal and overall property value.
Will energy efficient wall coating reduce my heating bills?
Yes, energy efficient wall coating helps reduce heating bills by improving your home’s ability to retain heat. The coating forms a waterproof barrier that prevents moisture from entering the walls, which otherwise causes heat loss. Dry walls hold warmth better, so your heating system works less to maintain a comfortable temperature. Over time, this can lead to noticeable savings on energy costs. The coating also helps reduce drafts and cold spots, making your home warmer and more comfortable throughout the year.
Can energy efficient wall coatings be applied to older properties?
Yes, energy efficient wall coating is suitable for many older properties, particularly those with solid walls that lack modern insulation. It helps protect fragile or weathered surfaces and improves thermal performance by preventing heat loss. Before application, a professional survey is essential to check wall condition and address any repairs needed. This service can extend the lifespan of older walls and improve comfort without altering the character of your home. It’s a popular choice for those wanting to improve energy efficiency while preserving period features.
How do I know if my home needs energy efficient wall coating?
You may need energy efficient wall coating if your home shows signs of damp, peeling paint, cold or draughty rooms, or rising energy bills. A professional survey is the best way to confirm this. Surveyors will inspect your external walls for damage, moisture ingress and insulation issues. If the walls are porous or suffering from wear, the coating can provide protection and improve thermal performance. Booking a free survey can help you understand if this solution is right for your property and what benefits you can expect.