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Costs and included work
For roof extensions on a pitched roof, compare the scope first: supporting structure, shell, roof shape and connection to the existing house. A price is useful only when supply and finishing work are clearly defined.
| Work / price basis | Starting indication | Scope |
|---|---|---|
| Roof extensions on a pitched roof | Price on request | Supporting structure, shell, roof shape and connection to the existing house |
What affects your total?
Existing foundations and walls, crane setup, stairs, services and finishes can be substantial separate items. A shell and a ready-to-use room are different scopes.
What to send with your request
Send current and proposed layouts, roof dimensions, facade photos and available structural information. Include your postcode, preferred schedule and the elements that must remain, so the scope can be assessed.
Start with the existing building
Collect plans and assess the roof, walls and foundations as relevant to the proposal. The engineer should determine what further investigation is needed.
Coordinate the new floor
Stairs, daylight, ventilation, services and insulation belong in the design. Consider adjoining properties and how the changed roof will drain and connect to retained construction.
Prepare the complete scope
Resolve required permissions before execution. Compare structural work, weather protection, installations and finishes using the same drawings and handover standard.