Roof Repairs In Bangor
And Across North Wales
Leak Traced, Not Guessed

Slipped and cracked slates are refitted with copper or stainless tingles where nailing is not possible, or renailed properly where the batten is sound. We match the existing slate for size, thickness and colour: reclaimed Welsh slate for older properties, new Spanish, Chinese or Brazilian slate where the roof was laid in one of those, and artificial slate where that is what is up there.

On tiled roofs we replace cracked and frost-damaged concrete and clay tiles, refit tiles that have crept down the batten, and renew broken tile-and-a-half units at verges. Ridge and hip tiles that have loosened are taken off, the old mortar cut away and the tiles rebedded, or converted to a dry-fix system where a mechanically fixed ridge is the better long-term answer.

Most persistent leaks on an otherwise sound roof come from a junction rather than the field of the roof. Chimney abutments, stepped flashings, back gutters, soakers, valleys, parapet upstands and skylight surrounds all rely on lead that has been dressed correctly and cut into a chase, not stuck on.

We carry out all lead work in the correct code for the position, with the right laps and expansion joints so it does not split. Where a previous repair has been made in tape or mastic, we strip it back and replace it properly: patching over failed tape simply moves the leak along.

Flat roofs fail at details first: upstands, drip edges, outlets and laps. We repair EPDM rubber, GRP fibreglass, torch-on felt and liquid systems, patching or overlaying to the manufacturer's method so any remaining system warranty is not compromised. Where a flat roof is at the end of its life, we say so and quote a replacement rather than sell you a patch.

Valleys between two pitches take more water than anything else on the roof. Lead valleys that have split from thermal movement, and open valleys clogged with moss and debris, are cleared, relined and re-dressed so water runs off rather than backing up under the slates.

North Wales coastal weather takes slates off, lifts ridges and pushes water sideways under laps that would be fine anywhere else. After a storm we make the roof safe first, temporary covering, removal of anything loose that could fall, and then survey and quote the permanent repair.

We photograph everything, which is what insurers ask for. If you are claiming, the written survey and dated photographs give your insurer the evidence they need for a storm-damage claim.

The same crew works on houses, commercial units and retail premises across North Wales. On commercial and retail buildings the priority is usually keeping the premises trading, so work is sequenced around opening hours, and access is planned so your customers and staff are not walking under it.

On domestic properties, especially older and listed ones, the priority is that the repair is invisible. Reclaimed Welsh slate, matched mortar and properly dressed lead mean the finished job looks like nothing ever happened to it.

We survey with a drone where a roof is high, steep, awkwardly accessed or simply unsafe to walk on. High-resolution aerial photography and video show ridge tiles, valleys, chimney flashings, hips and the far side of a roof in detail, without scaffolding, a tower or the cost and delay that come with them.

It also makes the diagnosis visible to you. Instead of a verbal account of what is wrong up there, you get the actual images of the slipped slates, the cracked ridge mortar or the failed lead soaker, so you can see what you are being asked to pay for and compare quotes on the same evidence.

A drone does not replace a hands-on inspection where one is needed: some defects can only be confirmed by lifting a tile or probing a deck. We use whichever gets you a correct answer fastest, and often that is a drone first, then targeted access to the one area that needs it.