Annual Roof Maintenance Checklist for Darlington Homeowners

Most roof problems that turn into expensive repairs started small. A blocked valley. A cracked mortar ridge. A loosened flashing. Caught early, these are straightforward jobs. Missed for two or three years, they let water into the structure and turn into timber replacement, re-roofing, and damp remediation work.

You don't need to be a roofer to do a basic annual check. Most of it can be done safely from the ground with a pair of binoculars, and from inside your loft if you have one.

External Checks — From the Ground

Walk around the perimeter of your property and look at the roof from each side. Use binoculars if you have them. You're looking for:

• Missing or displaced tiles — gaps in the tile pattern, or tiles sitting at an angle to their neighbours
• Ridge tiles — the tiles running along the apex of the roof. Look for cracks, lifting, or sections where the mortar bedding has fallen away
• Hip tiles (on hipped roofs) — same check as ridges
• Valleys — the internal angles where two roof slopes meet. Check for debris buildup and for cracking or lifting of the valley material
• Lead flashings — the grey metal where the roof meets a chimney, dormer, or party wall. Look for open joints, lifting, or visible cracking
• Moss and lichen — some is normal; heavy, thick moss coverage holds moisture and should be addressed
• Gutters — look for sagging, sections pulling away from the fascia, or vegetation growing from them (sign of blockage)

Building owners have a duty to maintain the building envelope in a condition that prevents water ingress, since progressive deterioration arising from deferred maintenance is excluded from most buildings insurance cover.

Source: Association of British Insurers — Buildings insurance: policyholder maintenance obligations

Loft Checks — From Inside

If you have a loft with access, a quick inspection after heavy rain is the most effective thing you can do. Take a torch and look for:

• Daylight — any point of light visible through the roof is a gap that needs addressing
• Damp timber — run your hand along the rafters nearest any chimneys, valleys, and abutment walls. Damp timber feels cool and slightly soft
• Staining on the felt — dark staining or tide marks on the underlay indicate water has been getting past the tiles at some point
• Condensation vs ingress — some moisture on the underside of the felt in cold weather is condensation and not a problem. Running water or persistent damp patches are ingress and need attention

Seasonal Timing

Autumn (October): Clear gutters and downpipes after the first significant leaf fall. Check valley areas for debris buildup. This matters in Darlington — properties along tree-lined streets in Cockerton, Hurworth, and Heighington have significant leaf accumulation every October.

Late autumn/early winter (November–December): Check loft for any ingress before the heaviest rainfall arrives.

After any significant storm: Ground-level check for displaced tiles. You don't need to wait for a leak to appear before investigating.

Spring (March–April): Clear any remaining winter debris from valleys and gutters. A good time to book a professional inspection if you haven't had one recently.

What to Call a Roofer For

Call a roofer if your inspection reveals:

• Any missing tile or visible gap in the tile course
• Ridge tiles that rock or have mortar missing around the base
• Any open joint in lead flashings
• Evidence of water ingress in the loft
• Gutters that are pulling away from the fascia board — the fascia itself may have rotted
• Heavy moss coverage, particularly if tiles feel soft when tapped (from the ground with a long pole — don't go on the roof)

Minor repairs — a cracked ridge tile, a loose flashing, a single tile replaced — cost relatively little when dealt with promptly. The roofing industry charges by the day, not by the hour, so combining two or three small jobs into a single visit is often the most economical approach.

We offer free roof surveys across Darlington and the surrounding area if you've found something during your inspection that you'd like a professional eye on.

The Annual Autumn Check — October to November

October and early November is the optimum time for the annual roof check in Darlington. Leaf fall is occurring, which means valley and gutter blockages are building. Any storm events from September onward may have disturbed loose tiles or shifted ridge mortar that was marginal going into summer. And there's enough milder weather remaining to have any identified problems addressed before the hard frosts of December.

The ground-level circuit of the property takes 10 minutes and costs nothing. Walk the full perimeter and look at the roof systematically: start with the ridge line against the sky — any gaps where ridge tiles are displaced are visible even from ground level. Check chimney stacks for obvious mortar loss or crumbling flaunching. Look at the lead flashings where chimneys and walls meet the roof slope — lifted or displaced lead can often be spotted from ground level on a two-storey property. Check the gutters: overflowing gutters during the check itself, or visible debris accumulation above the gutter line, indicates a clear is needed. Look at the fascia boards for paint peeling, any areas of visible rot, or gutter brackets pulling away from the fascia.

The Loft Inspection — What to Look For and When

A loft inspection after the first significant autumn rainfall — typically late October or early November — takes 15 minutes with a torch and gives direct evidence of any active ingress. Go into the loft within 24 hours of heavy rain. Look across the underside of the felt for any damp patches, water staining, or active dripping. Pay particular attention to: the area immediately around chimney bases where flashing failure shows up first; the valley junctions where two roof slopes meet; and the lowest section of the felt at the eaves where blocked gutters cause water to back up under the tile course.

Tide marks — the white salt deposits left when water evaporates from masonry or timber — indicate historic rather than current ingress. They're useful information: they show that water has entered at that point in the past, even if there's no active moisture now. The location of tide marks should be noted and the corresponding external element (flashing, valley, tile course) inspected at the next professional survey.

Post-Storm Checks for Darlington Properties

After any storm with sustained winds above 50mph — which County Durham experiences several times each winter — a specific check is worthwhile regardless of the annual inspection cycle. The ground-level circuit takes five minutes and identifies any displacement or damage that occurred during the storm. Look specifically at the ridge line for any sections where tiles have shifted or mortar has dislodged. Check lead flashings at chimney abutments — wind can lift flashings that were only marginally secured before the storm. Look at the valley lines for any blockage of debris deposited during the storm.

After a storm where displacement has occurred, call a roofer rather than attempting to fix it yourself. Accessing a roof on a ladder after storm events — when tiles may be wet and the ladder positioning may be compromised by wind debris — is one of the most common causes of serious falls in DIY maintenance. A displaced ridge tile that isn't creating active water ingress can wait 24–48 hours for a professional response. A displaced tile that is allowing water in needs a temporary covering — tarpaulin weighted or strapped into position — before a permanent repair is arranged.

The Five-Year Professional Survey

The ground-level checks and loft inspections described above are not substitutes for periodic professional inspection from the roof itself. Elements that require physical access — nail fixing condition, mortar adhesion behind ridge tiles, felt condition in the mid-span of the roof, lead lap detail at chimney flashings — cannot be assessed from the ground or the loft. A professional inspection every 5–7 years on a Darlington property over 20 years old, and every 3–5 years on a Victorian or Edwardian property, catches these elements before they cause problems.

The survey should generate a written report: what was found, what needs attention now, what should be monitored, and what is in sound condition. This report has three practical uses: it prioritises the maintenance budget for the year ahead; it provides documentation for insurance purposes if a storm claim is made in the following period; and it establishes a baseline that makes the next survey's comparison meaningful. A property with a survey record going back 15 years has a maintenance history that prospective buyers find reassuring — and that supports the asking price.

Last reviewed: 22 July 2026 · Written and maintained by Darlington Roofing Experts · 01325 000 000