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Northern Ireland

Builders & build costs in Derry

Real 2026 prices for Derry homeowners — kitchen extensions, lofts, rear extensions and more. Regional weighting applied automatically (base rate vs. UK base).

Get a Derry estimate I'm a Derry builder

1,200+
Verified UK builders
18,000+
Homeowners served
< 90s
Avg. estimate time
4.8 / 5
Average rating

Derry project cost guides

Standard spec, ex-VAT, base rate

Kitchen extension

Typical kitchen extensions in Derry from

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Loft conversion

Typical loft conversions in Derry from

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Typical rear extensions in Derry from

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Bathroom renovation

Typical bathroom renovations in Derry from

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Typical garden rooms in Derry from

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Double-storey extension

Typical double-storey extensions in Derry from

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Side return extension

Typical side return extensions in Derry from

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Garage conversion

Typical garage conversions in Derry from

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Kitchen renovation

Typical kitchen renovations in Derry from

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Full house renovation

Typical full house renovations in Derry from

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Driveway installation

Typical driveway installations in Derry from

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Roof replacement

Typical roof replacements in Derry from

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Full house rewire

Typical full house rewires in Derry from

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Boiler replacement

Typical boiler replacements in Derry from

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Why Derry pricing is different

Local labour rates

Derry day-rates feed straight into every estimate — no flat UK averages.

Midlands / South West

Materials, access and overheads adjusted base rate for Northern Ireland.

Vetted local builders

Match with verified, insured trades serving Derry postcodes.

Other UK cities

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