Guide
Funding for sash and case windows in Scotland.
Warmer windows can qualify for an interest free loan from Home Energy Scotland, and some heritage trusts help with traditional window repair. Here is what exists, who it is for, and the one rule that catches people out.
The rule that catches people out
Home Energy Scotland will not fund work that has already started. You must have its written offer before any work begins, because funding cannot be granted retrospectively. Apply first, then book the work.
Home Energy Scotland loan for glazing
The Scottish Government funded Home Energy Scotland Grant and Loan scheme offers homeowners an interest free loan of up to £8,000 for double, triple or secondary glazing.
- It is only for improving single glazing, not for replacing existing double or secondary glazing.
- There is no grant for glazing: this part is a loan.
- Where double glazing is recommended but only secondary glazing is affordable, an application for secondary glazing is accepted with a covering letter explaining this.
Draught proofing grant
Draught proofing can attract a £375 grant plus a £125 loan. It counts as a secondary improvement, so it is only funded when it is combined with a primary improvement, such as glazing, in the same application. See how we draught proof sash windows.
Who can apply
- You own the home and it is your only or main residence.
- You need a valid Energy Performance Certificate (EPC), and the improvement must appear in its recommendations table.
- For glazing and draught proofing, Home Energy Scotland does not require you to use a specific installer.
We provide written, itemised quotations for every job, which is what a funding application needs. Before relying on the loan for new double glazed sashes in your existing window cases, confirm with Home Energy Scotland that your project qualifies.
Home Energy Scotland Grant and Loan
Heritage grants for window repair
Stirling
Stirling City Heritage Trust runs a Traditional Window Repair Grant for properties within the Stirling city boundary, covering a share of eligible repair costs for members of its Traditional Buildings Health Check scheme. Check the trust's current terms, rates and boundary before applying.
Stirling City Heritage Trust grants
Glasgow
Glasgow City Heritage Trust's published FAQs say it does not normally fund sash window repairs for individual homes on their own, but can as part of a wider repair scheme, such as a whole tenement. If your building's owners are planning common repairs, ask your factor about including the windows. We worked with the trust on the restoration of Castlemilk Hall in Carmunnock.
Glasgow City Heritage Trust grants
Edinburgh
Edinburgh World Heritage offers conservation funding for eligible buildings within the Old and New Towns World Heritage Site.
Edinburgh World Heritage grants
Please note
We do not offer finance ourselves, are not a lender and cannot decide who qualifies. The figures above are taken from each scheme's own website in September 2026. Schemes change and funds can close, so always check the current terms with the scheme before you apply.
Arrange a free survey
Not sure whether to restore, upgrade or renew? Let us have a look.
Tell us a little about your windows, with a photo or two if you have them, and we will call you back to arrange a visit.
You enquire
Send the form, with photos if you have them, or phone us. We aim to call you back the same working day.
Free survey
We visit at a time that suits you and assess every window individually.
Written quote
A clear, itemised quotation with no hidden extras — and never any obligation.