Builder service guide

Loft conversion builders

Turn unused roof space into a practical room by comparing teams experienced with stairs, structure, insulation, fire safety and tight access.

Free for homeownersUp to three quotesLocal trade matchingNo obligation to hire

Typical project budget

£40,000–£75,000

Use this as a planning range only. Your property, region, specification and access determine the final quotation.

What the work can include

01

Structural floor and steelwork

Ask for this stage to be described in the written scope, including the materials, workmanship standard, access arrangements and what a finished result looks like.

02

Dormer or rooflight construction

Ask for this stage to be described in the written scope, including the materials, workmanship standard, access arrangements and what a finished result looks like.

03

Insulation, stairs and fire doors

Ask for this stage to be described in the written scope, including the materials, workmanship standard, access arrangements and what a finished result looks like.

04

Electrical, plumbing and plaster finishes

Ask for this stage to be described in the written scope, including the materials, workmanship standard, access arrangements and what a finished result looks like.

How to compare quotations

Roof geometry and head height

Ask the tradesperson to define this allowance, its exclusions and the evidence they will provide at handover so every quote can be compared fairly.

Dormer size and external finish

Ask the tradesperson to define this allowance, its exclusions and the evidence they will provide at handover so every quote can be compared fairly.

Bathroom or heating requirements

Ask the tradesperson to define this allowance, its exclusions and the evidence they will provide at handover so every quote can be compared fairly.

Scaffolding, skips and access

Confirm who pays for access equipment, parking restrictions, protection and any return visit caused by difficult or limited access.

Questions homeowners ask

Will every loft be suitable?

Head height, roof structure, stair position and fire escape requirements decide whether a conversion is practical.

Is a dormer more expensive than rooflights?

Usually; a dormer adds structure and external work but can create more usable floor area.

Should insulation be in the quote?

Yes. Ask for the insulation build-up and target performance rather than accepting a vague allowance.