What is always in the price
Our written quote covers both halves of the job: the rooflight and its weathering on the roof, and the reveal and making good inside. You will not find the plastering listed as an extra after the event.
- The rooflight or roof window itself, to the size and glass agreed
- Opening up, trimming and the upstand or flashing kit
- Weathering the roof covering to the new unit
- Lining, splaying where the roof allows, plastering and making good
- The Building Control notification where the work is notifiable
- Taking away the old unit and our waste
What moves the price
| Factor | Why it matters |
|---|---|
| Size and type | A small flat rooflight and a large roof lantern are different jobs, with different frames, glass and lifting. |
| Glass | Triple glazing, solar control and self-cleaning coatings each add to the unit cost. |
| Opening type | Fixed units cost least; manual opening and electric units with rain sensors cost more. |
| New or replacement | A new opening means trimming the structure; a like-for-like replacement often does not. |
| Roof build-up | A deep, insulated roof gives a deeper reveal to line and plaster, and room to splay it. |
| Access | Scaffold or a tower is needed on some roofs and not others. |
How to get a fixed figure
Book a free survey. We measure the roof and the room on the same visit, talk through the options with you, and send a fixed written quote. No obligation, and no price changes once you have accepted it unless you change the job. Book your free survey.
