Builders and Contractors in West Yorkshire
Building contractors handling extensions, conversions, refurbishment and commercial fit-out across West Yorkshire.
- Businesses listed
- 7 across 5 towns
- Category
- Trades
- Typical cost
- Extensions commonly £1,800–£2,800 per m² in 2026; commercial fit-out £400–£1,200 per m² depending on specification.
About this sector
Building work is the highest-value purchase most small businesses and households make outside property itself, and it is the one where selection matters most. The difference between a good and bad contractor is measured in months and tens of thousands of pounds.
West Yorkshire adds its own conditions: stone construction, steep valley sites, listed and conservation-area property in Calderdale and the Holme valley, and flood resilience requirements along the Calder.
Ranked lists in this sector
Our picks for the county and for individual towns.
Builders and Contractors by town
Where the businesses in this sector are based.
Every builder in the Guide
Recommended and featured businesses first, then the rest of the directory in alphabetical order.
Questions about builders and contractors
How much does an extension cost in West Yorkshire in 2026?
Single-storey extensions in West Yorkshire typically run £1,800 to £2,800 per square metre for a standard specification, so a 20m² extension usually lands between £36,000 and £56,000 before VAT, fees and finishes. Stone-faced work, sloping sites and conservation-area requirements push that upward, and the upper Calder valley and Holme valley are consistently more expensive to build in for that reason. Leeds and Wharfedale prices sit above the county average; Wakefield and Kirklees below it.
How much deposit should a builder ask for?
For most jobs, nothing up front, or a payment covering materials that have genuinely been ordered. A staged schedule tied to completed work — not to dates — is the norm for anything substantial. A contractor asking for a large percentage before starting is either under-capitalised or intending to fund a different job with your money, and both should end the conversation.