Roof Repairs in Knaphill

Right now there is a bucket on the landing, a brown ring spreading across the ceiling and a tile lying in the flowerbed. After the work there is a dry loft, a matched covering fixed to standard, and a written guarantee in the drawer.

Scott has spent more than 36 years on Surrey roofs and still answers the phone himself, the work is done by our own roofers, and every job carries a 25-year written workmanship guarantee, whether it is a single slipped slate or a new roof replacement in Knaphill.

Call 07428 300474 and describe what you are seeing, and we will tell you honestly whether it needs a repair or a survey first.

Roof Leak Diagnosis and Emergency Call-Outs

A roof repair in Knaphill starts with finding where water actually enters, which is rarely where the stain appears inside. Water tracks down rafters, along battens and across ceiling joists before it drops, so a stain two metres from the fault is normal. We work back from the internal evidence to the external cause, and we do it before anyone quotes a price.

Emergency calls go to the front of the queue. The phone is answered by a real person, day, night or weekend, and on an active leak the first visit is about stopping water getting in, not selling anything.

Stage one, internal inspection

Loft void first, with the insulation lifted where it is safe to do so. We look for wet rafter tops, felt sagging with trapped water, daylight through the covering, torn or perished sarking, and staining patterns that indicate condensation rather than ingress. Condensation faults are treated as a ventilation problem under BS 5250, not patched over with sealant.

Stage two, external inspection

Covering, verges, ridge and hip lines, abutments, valleys and penetrations, checked in that order. Where access or pitch makes a close view unsafe or slow, we take a drone view instead, which gives a readable image of ridge bedding and valley linings without disturbing the covering.

Stage three, temporary make-safe

Where the weather or the time of day rules out a permanent fix, we make the roof watertight, typically with a mechanically fixed sheet or a temporary flashing dressed into the correct laps, then return to complete the repair properly.

Stage four, written fixed price

You get an honest fixed price in writing, at no charge and with no obligation. If a smaller repair will hold, we say so. We do not turn a slipped tile into a new roof.

Repair Materials and Methods

The repair only lasts if the material matches what is already there and is fixed to a standard. Mixing an incompatible flashing or bedding a ridge in weak mortar buys a year, maybe two.

• Fixings and wind uplift: tiles, slates and ridges refixed to BS 5534, with clips, nails and mechanical dry fixing specified for the exposure rather than left to mortar alone.
• Slating and tiling workmanship: head laps, side laps and gauge set out as the BSI code of practice for slating and tiling of roofs and walls requires, so a repaired area sheds water the same way the sound roof does.
• Leadwork: milled lead to the code and bay lengths in Lead Sheet Association guidance, dressed, welted and clipped, never sealed in place with mastic.
• Flat roof systems: EPDM rubber, GRP fibreglass, and torch-on or built-up felt, detailed to BS 6229 for falls, laps and upstands.
• Rainwater: gutter and downpipe capacity checked against BS EN 12056 before anything is replaced like for like.

We do not pressure wash roofs and we do not push roof coatings. Soft wash and hand scraping remove moss without driving water under the laps or stripping slate.

Slipped Tiles, Slates and Broken Roof Coverings

Single slipped tiles are the most common Knaphill repair, and the usual cause is nail fatigue or a failed batten rather than the tile itself. Replacing the tile without checking the batten repeats the fault next winter.

• Broken and cracked plain tiles, interlocking concrete tiles and clay pantiles, matched on profile, colour and thickness.
• Slipped natural and fibre cement slates refixed with copper or stainless tingles, not folded scrap lead.
• Ridge and hip tiles rebedded, or converted to dry ridge with mechanical fixing where the exposure warrants it.
• Localised batten and sarking renewal where timber is soft or the underlay is torn back from the eaves.
• Verge repair, including dry verge units where cement pointing has blown off.

Storm damage often runs in a line across a slope, so we check the whole plane and both adjoining slopes, not only the tile you can see from the garden.

Pitched and Flat Roof Repairs in Knaphill

Knaphill housing runs from Victorian and Edwardian slate through interwar and postwar concrete tile to modern estate roofs, with plenty of flat-roofed rear extensions, dormers and garages behind them. Each wants a different repair method. Whether you need roof repairs in Knaphill or a roofer services Knaphill for wider work, we cover the whole area with our own roofers, never subcontracted strangers.

On pitched roofs, the repairs that hold are the ones that reinstate the original water shedding: correct lap, correct fixing, correct underlay overhang into the gutter. On flat roofs, the fault is usually a detail rather than the field. Splits at upstands, blistering over trapped moisture, and standing water from a fall shallower than the 1:80 minimum design fall all get diagnosed before a single square metre of membrane goes down. Where the deck is wet through, we say so and quote a warm-roof upgrade instead of laying a new skin over saturated insulation.

Lead Flashing, Chimneys and Valleys for Knaphill Homes

Most persistent leaks we are called to are at an abutment, a stack or a valley, not in open tiling. Lead perishes at the fold, mortar flaunching cracks, and valley linings fail where they are too narrow for the catchment.

• Stepped and cover flashings renewed in milled lead, chased 25mm into the joint and wedged, then repointed.
• Chimney repointing, new flaunching, pot and cowl renewal, and partial or full stack rebuilds where the brickwork has spalled.
• Back gutters and apron flashings formed and dressed rather than filled.
• Valley linings renewed with correct side laps and tile cutting held clear of the centre line.
• Soakers and saddles at hips, dormer cheeks and pipe penetrations.

All leadwork is sized and jointed to Lead Sheet Association guidance so thermal movement is taken up by the detail rather than tearing the sheet.

Guttering, Fascias and Roofline Repairs

A blocked or undersized gutter puts water down the wall and into the fascia, and the roof gets blamed for it. We clear, realign and reseal existing systems, and where a system is genuinely at the end of its life we replace it, including seamless aluminium run to length on site.

• Gutter and downpipe sizing checked to BS EN 12056 against roof area and rainfall intensity.
• Falls reset to the outlet, brackets at 800mm to 1000mm centres depending on the profile.
• Rotten fascia and soffit renewal, with eaves ventilation reinstated so the loft still breathes.
• Cladding and bargeboard repairs where wind has lifted a section.

Every repair, large or small, is handed over with a 25-year written workmanship guarantee before the team leaves, and the site is swept before we go.