Internal Wall Insulation
Internal Insulation Installer In South East England
ProGuard Exteriors Ltd are fully accredited IWI installers providing bespoke internal wall insulation packages for homeowners, developers and businesses throughout South East England. Our team has over 20 years of experience working in both residential and commercial internal insulation projects.
Internal wall insulation (IWI) involves the installation of insulation to the interior walls of a property. This layer of insulation minimises heat loss, improves thermal performance, decreases energy consumption and lowers heating bills. Internal wall insulation is best for older solid wall constructed properties without a cavity or when external wall insulation is not a viable option.
Our IWI installers are fully insured, trained and accredited to undertake any type and size of internal wall insulation project. We offer free guarantees up to 25 years on any new installation carried out by our team and ensure a fully manage all-in-one service from start to finish so there is minimal disruption to your daily life.
If you have a property in South East England that requires internal wall insulation, then please get in touch with our team to request a free IWI quote today!
Looking For An Internal Wall Insulation Installer? Get A Free Quote!
Is Internal Wall Insulation A Good Investment?

A massive 35% of heat is lost through the walls on an uninsulated property which leads to cold walls and chilly rooms. People try to solve this issue by turning their heating up to maximum which costs a huge amount of money. When you heat up a house with solid walls and no cavity the warmer air hits the cold walls which creates condensation. This moisture builds up because of the constant cooling and heating that can produce mould and damp. Our internal wall insulation systems solve this problem!
Internal Wall Insulation Benefits
Absorbing & Blocking Sound
Having an extra layer of internal insulation can help to improve the acoustics in your property and enhance soundproofing.
Improved Energy Efficiency
Our internal wall insulation systems significantly reduce the amount of heat lost through your walls, leading to better energy efficiency rating.
Save Money On Heating Bills
Interior wall insulation creates a much more stable temperature in your home which means you do not need to spend as much money on heating.
Condensation & Damp Protection
Our IWI systems can help stop the build up of internal condensation and therefore reduce the risk of damp spreading in your property.
Our Internal Wall Insulation Systems
Our internal wall insulation installation contractors are fully insured, accredited and have over 20 years of experience. Our company creates bespoke residential and commercial interior insulation packages for homeowners, developers and businesses in South East England. Our main aim is to provide a wide range of internal insulation services to cater to the diverse needs of our clients.

Types Of Internal Wall Insulation
- Internal Insulation With Stud Walls – this method of interior wall insulation involves installing a new stud wall inside of the existing wall. The stud wall is typically 100mm width with a 40mm cavity on each side. As a result, this IWI method will take up more space than those listed below.
- Internal Insulation With Dry Lining – this method is when insulation is fitted between battens that have been fixed to the interior walls and covered in plasterboard. This option is best for a property that has lots of interior fittings that cannot be easily moved around.
- Internal Insulation With Thermal Lining – this method of internal wall insulation is best described as thick wallpaper that is fixed to the wall using a specialist strong adhesive. Thermal lining systems are typically up to 10mm which makes is best suited for smaller rooms with limited space.
Signs You Need Internal Wall Insulation
- Cold and draughty rooms – If your home has uneven temperatures or rooms that never seem to warm up, it could be a sign of insufficient insulation.
- High energy bills – If you’re consistently faced with high energy costs, it’s likely that your home is not adequately insulated and is losing heat through its walls.
- Uneven temperatures throughout your home – Proper insulation helps maintain consistent temperatures, making your home more comfortable and energy-efficient.
- Condensation and dampness on external walls – Insufficient insulation can lead to condensation and dampness, which can damage your property and impact your health.
- Noise pollution from outside sources – If your home is affected by external noise, internal wall insulation can help dampen the sound and create a more peaceful environment.
Why Choose ProGuard Exteriors Ltd?
- Free Guarantees Up To 25 Years On New Installs
- Over 20 Years Of Experience In The Industry
- All-In-One Internal Wall Insulation Packages
- Wide Coverage Across South East England
- Fully Insured & Accredited Workforce
- Trustmark Endorsed & QualityMark Protection
- EWI Pro Recommended Installers
- Residential & Commercial Tenders Accepted
- Highly Recommended By Previous Customers
- Free Quotations & Consultation Provided
Internal Wall Insulation Costs & FAQ's
- Homeowners with older properties: Older homes, especially those with solid walls or lacking cavity wall insulation, often suffer from poor energy efficiency. Our internal wall insulation services are ideal for improving the thermal performance of these properties.
- Residents of conservation areas or listed buildings: If your property is located in a conservation area or is a listed building, external insulation may not be a viable option due to planning restrictions. In such cases, internal wall insulation can be an effective alternative to enhance your home’s energy efficiency.
- Individuals facing high energy bills: If you are consistently dealing with high energy heating bills, investing in internal wall insulation can help reduce your heating and cooling costs significantly.
- Homeowners seeking a more comfortable living environment: If you struggle with cold and draughty rooms, uneven temperatures, or excessive noise from outside, our internal wall insulation services can help create a more comfortable, consistent, and peaceful living environment.
- Environmentally-conscious homeowners: If you’re looking to reduce your carbon footprint and contribute to a more sustainable future, internal wall insulation is an excellent way to improve your home’s energy efficiency and decrease greenhouse gas emissions.
- Homeowners planning renovations: If you’re already planning to renovate or refurbish your home, it’s the perfect time to consider internal wall insulation. Integrating insulation during renovations can be more cost-effective and efficient, allowing you to enjoy the benefits sooner.
- Property developers and landlords: If you’re a property developer or landlord seeking to improve the energy efficiency and overall appeal of your properties, internal wall insulation can be a valuable investment. It not only enhances the comfort of your tenants but also increases the value and marketability of your properties.
The cost of installing internal wall insulation changes from property to property depending on the numbers of rooms that need to be insulated. Here at ProGuard Exteriors Ltd, we offer transparent prices, outstanding workmanship and provide free quotations so you can see exactly how much our internal wall insulation system going to cost.
- Free Consultation: We’ll assess your home and provide a free, no-obligation quote based on your unique needs. Our experts will recommend the best insulation solution for your home.
- Expert Installation: Our experienced installers will perform a seamless and professional installation while minimizing disruption to your daily life. They will take care to protect your property and clean up after the project is complete.
- Quality Assurance: We stand behind our work, offering guarantees on both materials and workmanship. Our commitment to quality ensures that you can trust our services for years to come.
- Post-installation Support: Our team remains available to answer any questions and address any concerns you may have after the installation is complete. We’re dedicated to providing ongoing support and ensuring your satisfaction with our services.
- Compliance with Regulations: We adhere to all relevant building regulations and industry standards, ensuring your internal wall insulation project is completed in accordance with the law and best practices.
- It can be slightly more difficult to hang items from the wall but this can solved quickly by using special fixings (which we can help advise you on).
- There will be a small amount of temporary disruption whilst we prepare the walls, remove any wall fittings, etc.
- You can expect to lose roughly 100mm of room space on each wall but this depends on the method of interior insulation you have chosen to be installed.
Looking For Internal Wall Insulation Installation In South East England?
ProGuard Exteriors Ltd is a highly recommended internal wall insulation company providing bespoke packages for homeowners, developers and businesses across South East England.