New Roofs Across North Wales
Fixed Price, Fully Stripped
Guaranteed 25 Years

Reclaimed Welsh slate for period and listed properties, where matching the existing roofscape matters. New natural slate from Spanish, Chinese and Brazilian quarries where the budget or the building calls for it. Artificial slate where weight, cost or planning make it the right answer. Concrete and clay tiles across every common profile, plain tile, interlocking, pantile, for post-war and modern housing.

Reclaimed slate is not simply secondhand slate. It has to be sorted for soundness, graded for thickness and holed correctly, and laid with the heavier slate at the eaves. Done properly it outlasts most new imports; done carelessly it is a roof full of thin, cracked slate that starts failing in five years.

Breathable membrane replaces old bituminous felt on almost every reroof, because it allows water vapour out of the roof space rather than trapping it against the insulation. Battens are new, treated, and sized and gauged to suit the covering and the exposure of the elevation: coastal Anglesey and open sites near Bangor need a longer headlap than a sheltered street inland.

Ventilation is designed in, not left to chance: eaves ventilation, and ridge or tile ventilation where the construction needs it. Most of the condensation problems we are called to look at are not leaks at all; they are unventilated roof spaces.

Every abutment, chimney, valley and parapet gets new lead in the correct code, dressed and cut in, with proper laps and expansion allowance. Reusing old lead on a new roof is a false economy: it is the detail most likely to leak, and replacing it later means disturbing new covering.

Ridges and hips can be bedded in mortar or fitted with a mechanically fixed dry system. Dry-fix ridges do not crack out or need rebedding, and they ventilate; mortar is often preferred on period and listed properties for appearance. We quote whichever suits the building and tell you honestly which we would put on our own house.

On domestic reroofs the plan is built around living in the house while it happens: dust sheeting, the loft protected, access kept clear, and the site left tidy each evening. Commercial and retail reroofs are sequenced around trading, with the building kept watertight in phases rather than opened up all at once.

Heritage and listed work needs a different approach again: matched reclaimed slate, traditional detailing, mortar mixes chosen to suit the building, and a finish that satisfies conservation expectations. We have worked on multiple listed buildings in Betws-y-Coed, and William's own listed home, The Old School House in Llangefni, has been refurbished by the same team.