Leaks don't follow straight lines — the wet patch on your ceiling is rarely directly below the source. We locate the true entry point and fix it. Same-day attendance across Llandudno and the North Wales coast. No call-out fee.
Twenty years of leak repairs across Llandudno teaches you where water finds its way in. These are the most common causes on local housing stock.
The single most common leak source on Llandudno Victorian terraces. Salt air erodes lead and mortar pointing at abutment joints, letting in wind-driven rain from Atlantic weather systems.
Book a survey →Nail sickness on Penrhyn Blue slate is endemic on Llandudno period housing. A single slipped slate can let in enough water to cause significant internal damage over a winter.
Book a survey →Valley linings fail, particularly where blocked debris holds standing water. The resulting leak often appears several feet from the valley as water tracks along rafters before dripping.
Book a survey →Original bitumen sarking felt on older Llandudno housing stock is largely at or beyond its design life. Perished felt allows water past tiles or slates to enter the building.
Book a survey →GRP blistering, EPDM seam separation and felt cracking on extension and garage flat roofs. Flat roof leaks almost always enter away from the actual failure point.
Book a survey →Mortar erosion around pot bases and cracked render on chimney stacks allows water direct access to the roof structure. Common on multi-stack Victorian terraces across the Llandudno town centre.
Book a survey →Mis-diagnosing a roof leak costs time and money. We follow a systematic process every time.
We start inside — tracing the water path from visible damage back toward the roof structure to narrow the entry zone before going up.
Ridge to eave on the affected elevation — tiles, slate, flashings, valleys, felt, pointing — before concluding on cause.
Written diagnosis and repair cost before we do anything. No vague estimates, no surprise invoices. You decide whether to proceed.
For active leaks we make the roof watertight the same day. Temporary or permanent — water getting in tonight is always the first priority.
"Leak had been baffling us for two winters — wet patch in the bedroom but no obvious missing tiles. They found a failed lead soaker behind the chimney stack in twenty minutes. Fixed same day."
"Flat roof on the rear extension leaking three feet from the actual GRP failure point. They traced it, repaired it, and it has been dry through two North Wales winters since."
"Called at 8am with water through the bedroom ceiling during a storm. Someone was on the roof by 11am, temporary seal done, full repair booked. Exactly what you need."
The entry point is rarely directly above the wet patch on your ceiling — water travels along rafters and battens before dripping. Common sources on Llandudno properties: failed lead flashing around chimney stacks, cracked or slipped Penrhyn slate, failed valley lining, and perished felt. We carry out a systematic survey from ridge to eave and identify the true source before quoting.
A straightforward leak from a single failed flashing or a handful of slipped slates typically costs £150–£350. More complex leaks requiring valley replacement or felt repair run £350–£900. We charge nothing to diagnose — the written repair quote is free.
In most cases yes. For active leaks we prioritise same-day attendance. Where the permanent repair cannot be completed the same day, we make the roof watertight and schedule the full fix. Call 01492 339 101 — lines answered 24 hours.
Yes. Intermittent leaks appearing only in wind-driven rain often indicate flashing failure or cracked pointing rather than a tile problem. On Llandudno promenade properties, north-westerly Atlantic rain at angle finds gaps that don't show in vertical rainfall. We test specifically for this.
Yes. Flat roof leaks on extensions and garage roofs are among our most common jobs across Llandudno. GRP blistering, EPDM seam failure and felt perishing are all standard repairs. We locate the exact failure point before quoting.
No call-out fees. No obligation. Just an honest quote from a local Llandudno roofer who turns up when they say they will.
01492 339 101