WindowCost
Bath

Window costs in Bath

Indicative pricing for a standard 1200×1000mm casement window fully fitted in Bath, across four common specifications.

MaterialGlazingSizePrice range
uPVC Double Standard (1200x1000mm casement) £530 - £1,310
uPVC Triple Standard (1200x1000mm casement) £790 - £1,840
Aluminium Double Standard (1200x1000mm casement) £950 - £2,310
Timber Double Standard (1200x1000mm casement) £1,260 - £3,680

Bath specifics

Housing: Entire city is a UNESCO World Heritage Site; Georgian sash windows in honey-coloured Bath stone are strictly protected across all wards.

Climate: Avon valley location traps cold air and mist; improved glazing reduces condensation on traditional single-pane sashes.

Price driver: UNESCO-listed status means almost every job requires like-for-like timber replication; costs rival central London.

Installers: Tiny pool of Bath-approved heritage joiners; 12-16 week waits are common and planners reject non-timber proposals routinely.

Property age in Bath

Based on 72,334 Energy Performance Certificates issued across Bath and North East Somerset. Age band shapes which window fittings are specified — pre-1919 homes typically need timber sash or heritage-pattern casement; post-1980 stock accepts off-the-shelf uPVC.

Pre-1919: 28% (20,256 certs) 28%Pre-1919 1919-1944: 8.3% (5,978 certs) 8.3% 1945-1964: 17% (12,318 certs) 17%1945-1964 1965-1980: 15.7% (11,326 certs) 15.7%1965-1980 1981-2002: 9.2% (6,622 certs) 9.2% 2003+: 5.4% (3,898 certs)
1919-1944 8.3% 1981-2002 9.2% 2003+ 5.4%

Source: DCLG EPC bulk domestic dataset (OGL v3). Certificates issued to 2026-04-24.

35 conservation areas recorded in Bath on Historic England's national register. If your property sits inside one, expect Article 4 directions and consent requirements that affect window choice and material — see Article 4 directions and windows in conservation areas.

By window type in Bath

Casement

See casement prices and specification in Bath.

Sash

See sash prices and specification in Bath.

Tilt & Turn

See tilt & turn prices and specification in Bath.

Bay

See bay prices and specification in Bath.

French

See french prices and specification in Bath.

Roof

See roof prices and specification in Bath.

Secondary glazing

See secondary glazing prices and specification in Bath.

Next steps

Look at installers covering Bath, or read the full cost-guide library for material and glazing deep-dives.