Roof Tiling: Concrete Interlocking Tiles – cost per m² – UK 2026 Rate Guide

Budget rate for supply & lay · typical budget rate before your adjustments

Labour, plant, materials, outputs and waste — yours to edit, as an Excel. Three free.

Rates are UK national (non-London): central London and constrained urban sites typically run dearer — adjust the labour, plant and access lines in the build-up accordingly.

Roof tiling — concrete interlocking

per m² · supply & lay

£41 – £79 / m²

What is it

The supply and fixing of a pitched-roof covering of large-format concrete interlocking tiles (~10 tiles/m²), laid on a breathable underlay and treated battens and fixed per BS5534, priced per m² of roof slope. Concrete interlocking tiles are the mainstream UK budget pitched-roof covering — large tiles that lock together, laying fast with few tiles per m². The rate carries three operations:

Underlay — a BBA/LABC breathable membrane laid over the rafters with 150 mm laps.
Battened — treated 25×50 mm BS5534 battens fixed to the tile gauge.
Tiled — the interlocking tiles loaded out, set out, laid, nailed & clipped to the exposure requirement.

Rate range

Low£41 – £53 / m²

Typical£47 – £61 / m²

High£61 – £79 / m²

Budget rate per m².

3 key cost drivers

Roof complexity & access

A simple duo-pitch gable with easy access tiles fastest; hips, valleys, dormers and abutments add cutting waste and set-out time, and steep pitches or restricted access slow the gang. It is a key driver of the labour per m².

Tile type

Large concrete interlocking tiles (~10/m²) are the priced default and lay fastest. Small-format plain concrete or clay tiles (~60/m²) and natural slate are dearer coverings laid more slowly — priced separately. It is a key driver of both material cost and laying speed.

Location

London and the South East typically add around 20% to labour.

Estimator

Budget rate generator

£47 – £61 / m²

Covers the interlocking tiles, breathable underlay, treated battens, fixings, the tiling gang and O&P · excl. structure, ridge/verge/flashings, strip-off, scaffold & VAT

Exclusions

Lifting & material distribution — telehandler / forklift, hoist and site-distribution labour (an attendance, in main-contractor prelims)
The roof structure (rafters/trusses), ridge, hip, verge, valley & abutment linear details
Fascia/soffit/gutters, leadwork & flashings, strip-off & disposal, insulation & scaffold
Scaffold supply (usually in preliminaries)
Preliminaries — main-contractor site set-up, management & welfare
VAT