House Extensions

UK House Extension Estimator.

Single storey, double storey, side return, and wraparound extensions estimated directly from your client drawings.

Substructure & Groundworks

Trench fill or raft foundations, site clearance, spoil removal, beam & block or ground bearing floor slab, DPM, insulation, and underfloor heating prep.

Superstructure & Roof

Cavity walling, brick matching, blockwork, RSJ steel beams, structural calculations matching, flat roof GRP/EPDM or pitched tiled roof, rooflights, and rainwater goods.

Fit-Out & Risk Checks

Plastering, first & second fix M&E, bi-fold doors, boundary wall party wall checks, build-over sewer agreements, and planning condition flags.

Have an extension drawing ready?

Send your PDF planning or building regs drawings directly to Max on WhatsApp for a fast review-ready estimate.

Estimate Extension on WhatsApp (+357 96 253566)