External Wall Insulation across Central Scotland

External Wall Insulation (EWI) in Glasgow & Scotland's Central Belt

We install external wall insulation (EWI) on domestic properties throughout Glasgow, Paisley, Renfrewshire, Ayrshire, Lanarkshire, and the wider Central Belt of Scotland. EWI improves thermal performance, increases comfort, and helps reduce heat loss, making your home warmer and more energy-efficient in colder months.

What external wall insulation is

External wall insulation involves fixing an insulating layer to the outside of your home and finishing it with a protective render system, typically roughcast or K Rend silicone render. It can be applied to full properties or partial elevations where improvement is required.

EWI is most often chosen by homeowners whose homes are:

• Cold or hard to heat
• Affected by high energy costs
• Lacking adequate wall insulation
• Traditional builds with solid walls

While it's a highly effective way to improve comfort and reduce heat loss, it is one of the most expensive exterior systems and may not be necessary for every property.

Benefits of EWI

• Improved comfort: helps reduce heat loss through external walls
• Lower energy demand: better insulation can contribute to reduced heating requirements (actual savings vary by property type and usage)

We do not guarantee specific savings; every home performs differently.

Our approach

We install EWI systems with your choice of finish, from traditional roughcasting to modern K Rend silicone render, all backed by a guarantee of 25 years or more when installed correctly. Our team carries out preparation and installation with a focus on weather performance and durability.

We work on all common wall types including brick, block, existing rendered walls and cladding, where compatible with external wall insulation substrates.

Please note: building control or planning requirements may apply depending on your property; we'll advise where necessary.

Applying for external wall insulation grants, step by step

External wall insulation is a major investment, and in Scotland some homeowners may be eligible for government-backed energy funding. If you're planning to apply for a grant, we recommend following the steps below before requesting a full quotation, unless you intend to fund the work privately.

Step 1 – Check your eligibility

Grant eligibility is assessed independently and depends on factors such as property type and construction, existing insulation, household circumstances and income, and the energy efficiency of the home. Eligibility and funding decisions are not made by installers.

Step 2 – Contact relevant Scottish energy & grant services

To explore whether your home may qualify for external wall insulation funding, the main organisations to contact are Home Energy Scotland (the primary gateway for energy efficiency grants and support in Scotland), Warmer Homes Scotland (fully supported improvements for eligible, mainly income- or vulnerability-based households), your local authority or council energy schemes, and other support bodies such as the Energy Saving Trust. These organisations do not recommend specific installers, so you are free to choose who carries out the work. Contacting them before requesting a quote helps you understand your eligibility and what funding routes might be available.

Step 3 – Understand the outcome

After speaking with Home Energy Scotland, one of the following will apply: you may be eligible for grant or loan funding, you may be referred to another scheme (such as Warmer Homes Scotland), or you may be advised that funding is not available.

Step 4 – Contact us for assessment & quotation

Once you understand your funding position, or if you are fully funding the work yourself, we'll assess whether external wall insulation is appropriate for your property, explain the finish options (roughcast or silicone render), provide clear pricing and guidance, and advise on next steps. If you already know you'll be self-funding, you don't need to complete the grant steps above; you're welcome to contact us directly for assessment and pricing.

Important notes

• We do not apply for grants on your behalf
• We do not guarantee funding or eligibility
• Final funding decisions are made by independent scheme providers
• External wall insulation is one of the most expensive exterior upgrades and may not be necessary for every home

Our role is to advise honestly, carry out the work correctly, and help you understand whether EWI is the right solution for your property.

Domestic EWI specialists

We work exclusively on domestic properties, focusing on installations that improve wall performance and appearance. External wall insulation is a strong long-term solution for homes struggling with heat loss, and we're happy to assess whether it's appropriate for your property.