Most roof problems start small: a slipped tile after a storm, cracked mortar along the ridge or a gap in the flashing around the chimney. Caught early, roof repairs are usually affordable – many minor roof repairs cost £150 to £500 – but leave them through a wet winter and water can rot timbers, stain ceilings and turn a small job into a much bigger bill.
The cost of a repair depends mostly on access. Scaffolding can cost as much as the repair itself, so roofers increasingly use ladders, roof ladders or cherry pickers for small jobs. Here are the common roof problems, what they usually cost to fix, and how to tell whether repair or replacement is the better option.
Common problems and typical repair prices
Access: the hidden cost
Scaffolding for a two-storey house typically costs £600 to £1,500 depending on how many sides need covering and how long it stays up. For one-off jobs, ask whether a roof ladder, access tower or cherry picker would be safe and cheaper. For larger work, it makes sense to combine repairs – gutters, fascias, chimney and tiles – while the scaffold is already there.
Repair or replace?
A full replacement is usually worth considering when:
- the roof is near the end of its lifespan and leaks keep appearing in new places;
- many tiles are porous, cracked or flaking;
- the felt underneath has perished across large areas;
- roof timbers are sagging or rotten;
- repair quotes add up to a third or more of a new roof.
Watch out for roofing scams
Doorstep callers who “noticed loose tiles while passing” are a well-known tactic. Never agree to work on the spot, pay large cash deposits, or let someone onto your roof without checking who they are. Genuine roofers will show photos of the problem, give a written quote, and allow time to compare prices. Under consumer law you usually have a 14-day cancellation period for contracts signed at home.
A simple twice-a-year check
- From the ground, use binoculars to look for missing, slipped or cracked tiles.
- Check gutters are clear of leaves and moss, especially in autumn.
- Look in the loft for daylight, damp patches or stained timbers after heavy rain.
- Inspect flat roofs for pooling water, cracks and blisters.
- Trim overhanging branches that drop debris on the roof.
Emergency temporary repairs
After a storm, the priority is to stop water getting in until a roofer can make a permanent repair. Many roofers offer an emergency tarpaulin or temporary patch service, typically costing £150 to £400 depending on access. Inside, move belongings away from the leak, put buckets under drips and switch off any lights or sockets affected by water. Take photos of the damage from the ground and inside the loft, as your insurer will want evidence. Never climb onto a wet or windy roof yourself.
Will home insurance pay for roof repairs?
Buildings insurance usually covers sudden storm damage, such as tiles blown off in high winds, but not problems caused by wear and tear or poor maintenance. Insurers often define a storm by wind speed or heavy rainfall, so check your policy wording and report damage promptly. If a claim is refused because the roof was already in poor condition, a roofer’s report on the age and state of the covering may help you challenge the decision or plan the right repair.
Flat roof problems explained
Flat roofs on extensions, garages and dormers fail differently from pitched roofs. Traditional felt roofs tend to blister and crack after 10 to 20 years, while ponding water speeds up wear. Modern systems such as EPDM rubber and GRP fibreglass last longer and are easier to maintain. If a felt roof has leaked more than once, replacing the whole covering with a modern membrane is often better value than repeated patching, and gives you a chance to add insulation at the same time.
Moss and roof cleaning
Moss holds moisture against tiles, can lift them in frost and blocks gutters when it washes down. Gentle hand removal followed by a biocide treatment is the safest approach. Avoid aggressive pressure washing, which can strip the surface of concrete tiles, force water under them and shorten the life of the roof. Professional roof cleaning typically costs a few hundred pounds for an average house.
Questions to ask a roofer
- Can you show me photos of the problem before and after the repair?
- Will you use matching or reclaimed tiles?
- Is access equipment included in the price?
- How long is the guarantee on this repair, and is it in writing?
- Are you a member of a recognised trade association or approved trader scheme?
Prices reflect typical UK roofing repair quotes.
Independent guide – not linked to any roofing contractor.