Price estimate for garage conversion

Joined
16 May 2025
Messages
2
Reaction score
0
Country
United Kingdom
Hello everyone I'm looking for guidance on what to expect this job to cost. Want to know what to expect from builders quote


Site set up

Fence off and protect car parking area with polythene and ply ready for skips

Health and safety

Preliminary’s

Rubbish and wait and loads

Clear away and builders clean on completion



Strip out

Remove partitions, garage door and track, existing boiler cupboard doors

Remove hot water cylinder and associated pipework

Excavate floor, remove concrete slab and reduce levels by 500mm

leave ready for build up

Form opening side wall for French doors and side lights and fix catnic

support to take brick soldier course

Form opening side wall for window and fit catnic support to take brick soldier course

Extend opening from lobby to new bedroom to take wider door and frame

Remove patio slabs and set aside, remove base to form level access

from new French doors

Reinstate floor with 1200 gage DPM, 150mm hardcore, 100mm insulation,

70mm screed leaving an allowance for 25mm for tiles and adhesive

Allow for pipes supplied in floor and wall for a radiator to be fitted in future

Supply and fit 100mm Celotex insulation between ceiling joists and 50mm insulated

plasterboard to underside



First and second fix electrics

6 No. downlights 2 way

4 double sockets

Light above bed

External sensor light to outside door

Fuse spur for underfloor heating

4 No. remote sockets

Supply and fit 150mm insulation to side wall and 200mm to all external walls

Plasterboard to ceiling and plaster

Plaster board to all walls and plaster

Box in soil pipe and soundproof, plasterboard and plaster

Fit skirting to match existing to all new walls



Joinery

All windows, external doors and frames in Accoya hardwood

Support and fit bespoke French doors with side lights and windows

New door and frame from lobby to new bedroom all to match existing

Timber French doors and frame, double glazed

Timber casement window double glazed, all to match existing

New timber garage door to be fixed on external side of insulation to front elevation

Fix 6mm luxe board cementitious insulation board to floor screed

Supply and fit electric underfloor heating to complete floor

Supply and fit 600mm x 600mm porcelain tiles to complete bedroom floor

Making sure all thresholds through doorways are level access

Adapt patio and tiling to form level access from French doors

Full decorations to ceiling, walls and all woodwork using vinyl matt to ceiling and

washable emulsion to walls, satin to all woodwork

Fully decorate all external walls to new bedroom in 2 No. coats of masonry paint,

undercoat and 2 No. full gloss to window and door. Stain varnish or undercoat and 2 No. gloss to new garage door

Make opening through wall to get new hot water cylinder above ceiling in lobby,

strengthen and renew ceiling joist to take weight of new hot water cylinder

Re-plumb new hot water cylinder and associated pipework
 

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top