Why on site
Glazing and door sizes change late. Cutting openings on site means the shell kit stays a counted SIP panel pack, and the units you order can match the hole you actually form.
What to send with a quote
- Rough opening sizes (width × height) for each door and window
- Which elevation they sit on, if you know
- Whether you want us to quote the windows and doors as well
Photos or a sketch on WhatsApp are fine. Or use Design & quote and note openings in the message.
We supply the units. Forming the openings and fitting the frames is by you or your builder unless labour is quoted separately.