Warmer walls. Lower bills. A more comfortable home.
Many older Yorkshire homes lose significant heat through solid external walls. Internal wall insulation from Carbon Save gives properties that can't be insulated externally a proven way to close that gap.
- Best for
- Solid walls
- Boosts
- EPC
- Coverage
- Yorkshire
Accredited & registered
A thermal barrier fitted to the inside of your external walls.
Internal Wall Insulation (IWI) is fitted to the inside face of your external walls, creating a thermal barrier that keeps heat inside in winter and reduces overheating in warmer months. It's often the best option for homes where external wall insulation isn't practical or permitted.
- Solid wall properties
- Traditional stone-built homes
- Older brick-built properties
- Listed buildings where external insulation isn't suitable
- Homes with poor thermal performance
Why solid-wall homes upgrade to IWI
Reduce heat loss
Solid walls can account for a substantial proportion of a property's heat loss. Internal wall insulation helps retain warmth.
Lower energy bills
Less heat lost means your heating system doesn't need to work as hard, helping reduce running costs.
Improve comfort
Warmer rooms, fewer cold spots and more consistent indoor temperatures throughout the year.
Reduce condensation risk
Correctly designed IWI raises internal surface temperatures, reducing cold spots that cause condensation and mould.
Improve EPC ratings
A recognised measure that can meaningfully lift EPC ratings for homeowners and landlords.
Reduce carbon emissions
Reducing energy consumption directly lowers your property's environmental impact.
Ideal for older, harder-to-treat homes
Our team can assess your property and recommend the most suitable insulation solution, whether you own your home, rent it out or run a commercial building.
- Solid wall properties built before the 1930s
- Stone-built homes
- Older terraced properties
- Rural properties
- Homes with high heating bills
- Landlord-owned rental properties
- Commercial buildings with poor thermal performance
Careful, considered installation from start to finish
Property assessment
We evaluate your property's construction, existing insulation and overall suitability.
Detailed survey
A full survey identifies areas of heat loss and pinpoints the most appropriate insulation system.
System design
A bespoke solution designed to maximise efficiency while respecting your property's structure and finishes.
Professional installation
Our experienced installers complete the work to a high standard with minimal disruption.
Quality assurance
We ensure the installation meets all relevant standards and performs as intended long term.
Internal wall insulation for landlords
With increasing focus on energy efficiency standards in the private rented sector, IWI can be an effective way to improve EPC ratings and reduce energy consumption without external works.
- Improved EPC performance
- Enhanced tenant comfort
- Reduced heat loss
- Increased property appeal
- Support towards future MEES requirements
- Cost-effective retrofit option
Improve fabric first, then supercharge with renewables
Improving the thermal efficiency of your property helps maximise the performance and savings achieved from renewable energy systems.
Internal wall insulation frequently asked questions
Ready to make your home warmer and more energy efficient?
Book a free, no-obligation internal wall insulation survey and we'll design a solution tailored to your property and your budget.
Speak to a Yorkshire renewable energy specialist
Every property is different. A short conversation and a free survey is the quickest way to find out what will actually work for your home or premises.
- Free, no-obligation survey across Yorkshire
- MCS, TrustMark and Gas Safe accredited installers
- Clear written quotes with no pressure selling
- Grant paperwork handled for you where available
Book your free survey
Tell us a little about your property and one of our Yorkshire team will be in touch.