Secondary Glazing Grants Scotland
For residents in Scotland’s historic towns and cities, the challenge of maintaining a warm home is often complicated by the beautiful, yet thermally inefficient, traditional windows that define our architecture. As energy prices remain a primary concern in 2026, many homeowners are turning to secondary glazing as a cost-effective, conservation-friendly solution. Fortunately, several Scottish Government-backed schemes are available to help manage the costs of these essential upgrades.
The Home Energy Scotland (HES) Grant and Loan Scheme
The most prominent route for funding is the Home Energy Scotland Grant and Loan. Funded by the Scottish Government, this scheme is designed to help citizens make their homes more sustainable.
Currently, for secondary glazing grants Scotland the scheme primarily offers an interest-free loan of up to £8,000. While the “grant” portion of this specific scheme is often reserved for clean heating systems (like heat pumps) or high-priority insulation, the interest-free loan remains a powerful tool. It allows you to spread the cost of secondary glazing over several years with no added interest, making it significantly more accessible than high-street credit. To qualify, you must be the homeowner and the property must be your primary residence.

Warmer Homes Scotland: 100% Funded Upgrades
If you are a tenant or a homeowner meeting specific criteria, you may be eligible for the Warmer Homes Scotland scheme. Unlike a loan, this is a direct grant that can cover the full cost of energy-saving measures, including secondary glazing and draught-proofing.
This scheme is specifically targeted at households that are most likely to struggle with energy bills. Eligibility is generally based on factors such as:
- Living in a home with a poor energy rating (EPC).
- Being in receipt of certain income-related benefits.
- Living in a Council Tax Band A-F property.
- Being over 75 years old with no working central heating.
For those who qualify, Warmer Homes Scotland provides a comprehensive “whole house” assessment, often resulting in secondary glazing being installed at zero cost to the resident.
ECO4 and Area-Based Schemes
The Energy Company Obligation (ECO4) remains a vital part of the funding landscape until March 2026. Under this UK-wide obligation, larger energy suppliers must help vulnerable households reduce their carbon footprint. In Scotland, this often manifests through Area-Based Schemes (ABS) managed by local councils like Edinburgh, Glasgow, and Aberdeen.
These schemes frequently target specific neighborhoods with older housing stock, offering subsidized or fully funded secondary glazing to improve the thermal envelope of the entire street. It is always worth contacting your local authority’s energy department to see if your postcode is part of an active ABS initiative.
Why Secondary Glazing is the Smart Choice for Scottish Heritage
Beyond the available funding, secondary glazing is often the only viable option for many Scottish properties. If you live in a Listed Building or a Conservation Area, installing modern double glazing can be legally restricted or prohibitively expensive due to strict “like-for-like” timber requirements.
Secondary glazing acts as a discreet internal barrier. It provides:
- 65% Heat Retention: Slashing your heating bills significantly.
- 80% Noise Reduction: Essential for city-center living near busy roads.
- No Planning Permission: Because it is an internal change, it rarely requires the lengthy planning applications associated with window replacements.
How to Apply for Funding in 2026
The first step is to contact Home Energy Scotland for a free energy assessment. Their advisors will review your circumstances and determine which of the grants or loans mentioned above are best suited to your home. You will typically need a valid Energy Performance Certificate (EPC) that recommends glazing improvements as a way to boost your home’s efficiency.
By taking advantage of these grants and the current 0% VAT rate on energy-saving materials, there has never been a better time to future-proof your Scottish home against the cold.

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