From 1 April 2027, the VAT rate applied to draught‑stripping works on existing sash windows will change — rising from the current 0% rate back to 5%. For homeowners planning energy‑efficiency improvements, and for anyone considering sash window restoration, this is an important consideration.
Why the VAT Rate Is Changing
As part of the government’s time‑limited energy‑saving measures, draught‑proofing and certain insulation works have been eligible for a temporary zero‑rate VAT. This incentive was designed to help households reduce heat loss and improve energy efficiency during a period of rising energy costs.
However, this temporary relief ends on 31 March 2027. From 1 April 2027, draught‑stripping will return to the reduced VAT rate of 5%, which has historically applied to energy‑saving materials installed in existing homes.
What Homes Does This Apply To?
The relief for energy-saving materials applies to installations in residential accommodation. This includes:
- houses, blocks of flats or other dwellings
- armed forces residential accommodation
- children’s homes
- homes providing care for the elderly, disabled people, or people who suffer or have suffered from drug or alcohol dependency or mental disorder
- hospices
- institutions that are the sole or main residence of at least 90% of their residents
- residential accommodation for students or pupils
- self-catering holiday accommodation
What This Means for Homes with Sash Windows
Draught‑stripping is one of the most effective ways to improve the thermal performance of traditional sash windows. It reduces heat loss, cuts down on cold draughts, and helps original windows perform closer to modern standards — all while preserving the character of your property.
The upcoming VAT change means:
- Homeowners have a limited window of opportunity to benefit from the 0% VAT rate.
- Projects completed before 31 March 2027 will qualify for the zero rate.
- Projects completed on or after 1 April 2027 will be charged VAT at 5%.
For larger restoration projects or full‑house draught‑proofing, the difference in VAT can be significant.
Why Act Now
If you’ve been considering sash window refurbishment, draught‑proofing, or energy‑efficiency upgrades, completing the work before the VAT rate changes could offer meaningful savings.
Booking early also ensures:
- Adequate time for surveys and quotations
- Availability during peak periods
- Completion well before the 2027 deadline
As specialists in sash window preservation, we believe in transparency. We’re committed to helping homeowners make informed decisions, not just about craftsmanship and conservation, but also about timing, budgeting, and regulatory changes that affect your home.
If you’d like advice on planning your project ahead of the VAT change, or if you want to secure a slot under the current 0% rate, our team is here to help.
Please phone 01603 908 252 or email info@sashwindowpreservation.co.uk
