Roof Repairs & Leak Detection — Trace, Fix & Prevent
Leaks rarely start where you see the stain. We trace the real source, make the roof safe and then carry out durable repairs that blend in with the existing covering. Our approach is methodical: inspect inside and out, test suspect areas, document findings and agree priorities. Where materials are aged or out of production we source quality reclaimed pieces for a seamless look. Expect tidy access, clear photos and itemised costs—plus practical advice to prevent the issue returning.
Survey & Leak Tracing
We begin with a brief history—when the leak shows, which wind and rain directions trigger it—and then inspect loft spaces, abutments and penetrations. Outside, we check fixings, laps, ridgelines, valleys and gutters, looking for capillary paths, wind-driven rain points and cracked bedding. If required, we stage controlled hose or dye tests to isolate the fault. Everything is photographed and mapped so you can see exactly what we’ve found and why we recommend a particular fix.
Dye/Water Tests
Targeted tests confirm the route water is taking. We use gentle, localised hose tests to avoid forcing water where it wouldn’t normally travel, and harmless tracing dye where internal access allows. By moving systematically—eaves to ridge, valley to verge—we identify the first point of ingress rather than symptoms downstream. Floors and furnishings are protected and results are documented for the record.
Photo Reports & Priorities
After tracing we provide an easy-to-read report: annotated photos, a brief explanation of causes, and a colour-coded set of actions—urgent make-safe, essential repair and optional improvements. This transparency lets you decide what to do now and what to plan for later. We’ll also flag any wider issues (ventilation, fragile mortar, tired gutters) that could be combined cost-effectively.
Make Safe & Temporary Covers
When rain is incoming, speed matters. We make the area weather-tight with temporary measures—secure sheeting, taped membranes or emergency flashings—so the interior can dry while permanent repairs are organised. Fixings are positioned to avoid further damage and neighbours are considered when setting scaffold or access.
Storm Damage Tarping & Sheeting
High winds can lift ridges, verges and entire tile runs. We install anchored covers that won’t chafe the roof, remove loose fragments, and cordon off hazards below. Where insurance is involved, we supply photos and a short statement of works to support the claim, then return promptly for permanent reinstatement when weather allows.
Tiled/Slated Roof Repairs
Most pitched-roof leaks stem from slipped units, nail fatigue or disturbed bedding. We lift, re-bed or replace affected tiles/slates, reinstate the gauge and secure with the correct clips or fixings to BS 5534. Reclaimed tiles or matched slate are used where appearance matters. We finish by checking adjacent courses and alignment so the repair becomes invisible from the ground.
Slipped/Cracked Tiles or Slates
Failed nibs, perished nails and wind-lift are common. We re-nail or clip, replace broken units and correct the batten gauge if it has crept. Cuts are wet-sawn, not snapped, and small infills are avoided. Where multiple slips suggest fatigue, we’ll propose a targeted strip-back and refix rather than piecemeal visits.
Ridge, Verge & Hip Repairs
Loose ridges or crumbling verges admit wind-driven rain. We switch to dry-fix where appropriate for mechanical security and ventilation, or re-bed with the right mixes and fixing straps where a traditional look is required. Hips are mitred or bonneted to match the existing style and all end caps are mechanically secured.
Valleys & Flashings
Valleys concentrate flow; any split lining, blocked trough or short lap will show as a leak far away. We renew valley linings in lead, GRP or suitable alternatives, set correct soaker/undercloak details and ensure free paths to outlets. At abutments we replace tired flashings and trays, forming neat chases and dressed laps that move with the building rather than cracking out.
Leadwork, Soakers & Back Trays
Lead is sized by code to control movement, fixed with clips—not over-nailed—and treated with patination oil to prevent staining. We form back trays to stop water driving under tiles at chimneys and dormers, add secret gutters where geometry demands, and reinstate soakers to the correct step pattern.
Step/Apron Flashings
We rake chases, insert properly wedged lead steps and dress them to the bond without thin slivers. Aprons land onto tiles/slate with adequate cover and a clear water path. Sealants are used only as specified—never as the primary defence—so the joint remains serviceable for years.
Chimneys & Abutments
Stacks collect weather on every face. We repoint failing joints with compatible mortars, re-form flaunching to shed water, and fit pots or cowls as needed. Where persistent damp is traced to the stack body, we install or renew trays and repair render or brickwork to restore the weathering detail.
Repointing & Flaunching
Soft, porous pointing and cracked flaunching invite water. We rake out to depth, repoint in lime or specified mixes to match the building, and rebuild or re-cast flaunchings with a smooth fall from pot to edge. Works are coordinated with lead renewals so details tie together cleanly.
Lead Trays, Pots & Cowls
Internal damp patches are often solved by a correctly detailed tray. We cut-in new trays with stop ends, renew aprons and step flashings, and fit appropriate pots or bird/rain cowls. All fixings are secure and aligned; finishes are neat and photographed for your records.
Timber Repairs & Breathability
Hidden water can rot fascias, bargeboards and rafter ends. We splice or replace decayed sections, treat adjacent timber and ensure ventilation paths are restored. Over-sealing a roof traps moisture, so we pair repairs with sensible breathability—clear eaves paths, ridge ventilation and moisture-safe collars around services—to protect the structure long-term.
Fascia/Bargeboard & Rot Treatment
We remove failed cappings, assess extent, and either splice in new timber or replace lengths outright. Treated timber or uPVC can be used to suit the property. Primer, seal and paint systems are applied to specification; gutters are reset to correct falls once the eaves line is true.
Ventilation Upgrades
Condensation presents like a leak. We add over-fascia vents, continuous ridge vents or discreet tile vents to create balanced airflow. Vapour control and insulation are checked so warm, moist air isn’t driven into cold voids. This simple upgrade often eliminates recurring “mystery” damp.
Prevention & Maintenance
Once watertight, keep it that way: clear gutters, check valleys after leaf-fall, and have fixings and ridges inspected annually—especially after storms. Minor seal repairs and slipped units caught early cost little; ignore them and nearby timber, plaster and decoration pay the price. We can schedule planned checks so issues are fixed before they drip.
Gutter Cleans & Annual Checks
We remove debris, flush outlets, check bracket spacing and falls, and water-test to confirm free flow. At the same visit we scan ridges, verges and flashings for movement or cracking and tighten or refix as needed. A short photo note records what was done and any advisories for the next season.
Why Choose DM Jones Contractors
- ✓ Methodical tracing that finds the source—not just the symptom.
- ✓ Fast make-safe and durable, warrantied repairs that blend in.
- ✓ Matching reclaimed materials where appearance matters.
- ✓ Clean leadwork and BS-compliant fixings for long-term reliability.
- ✓ Clear photo reports, priorities and itemised pricing.
- ✓ Respectful access, tidy sites and reliable scheduling.
- ✓ Local references and a straightforward workmanship guarantee.
Book a Roof Repair
Send a couple of photos (inside stain and outside roof area), your postcode and when the leak shows (wind direction, heavy/light rain). We’ll arrange a prompt visit, trace the fault, make the roof safe if needed and provide a clear, itemised quotation for permanent repairs.
