Energy Efficient Windows and Doors
Double or triple glazed windows and insulated external doors.
What It Is
Replacing single glazed or failed units with double or triple glazed windows, and fitting insulated external doors, reduces heat loss and draughts. Windows and doors can be quoted together or separately, and are measured and specified on survey.
Why It Matters
Windows and doors are common routes for heat loss and draughts. Upgrading them improves comfort and works alongside wall insulation detailing.
- Reduced heat loss and draughts
- Improved comfort near openings
- Can be quoted separately
- Coordinated with insulation works
Who It's For
What Good Delivery Looks Like
Accurate survey and measurement
Correct installation and sealing
Trickle ventilation considered
Building control notification where required
Interested in Energy Efficient Windows and Doors?
Discuss windows or doors. Get in touch to discuss your requirements or request a survey.
Exploring the North East Warm Homes Loan?
Lendology lists this type of work among the measures it may consider, subject to its own eligibility checks. WHNZ can survey and quote the work; you apply to Lendology independently. Registration opened 8 October 2026; full applications open 22 October 2026.
Other Services
Delivering a programme rather than a single property? See managed retrofit delivery. To check coverage, see the areas we serve, or read more about how Warm Homes Net Zero Ltd works.