Pitched roof repairs: what's worth fixing and what isn't

Almost every pitched roof we look at is repairable. The real question is whether repairing it is still the sensible use of your money, and that comes down to whether the failures are local or general.

The short answer

Localised pitched roof repairs — slipped tiles, a cracked ridge, failed flashing, one bad valley — are worth doing at any age if the rest of the covering is sound. Once you have scattered failures across more than one slope, soft battens and shredded underlay, repairs stop paying and a re-roof becomes the cheaper option over five years.

Local failure versus general failure

A local failure is a specific, explainable defect: one storm-lifted tile, a cracked ridge where the mortar has gone, a split in a valley, an apron flashing that has come away from the chimney. Fix it and the roof is genuinely sound again. A general failure is the same defect appearing everywhere — tiles slipping across the whole slope because the nails have rusted through, underlay torn along its full length, battens soft wherever you probe. General failure is a re-roof dressed up as a series of repairs, and it's why some homeowners spend £3,000 in patches over four years on a roof that needed £9,000 once.

The repairs that are almost always worth doing

Re-bedding or dry-fixing a ridge line, replacing slipped or missing tiles where the battens are sound, renewing lead flashing at chimneys and abutments, re-forming a valley, replacing a cracked verge and repointing gable ends. All of these are contained, cost hundreds rather than thousands, and buy the covering another decade or more. On the Edwardian and inter-war stock across Hampton, Fulwell and Whitton, these five jobs cover most of what we do.

The signs that repair money is being wasted

Tiles slipping in more than one place each winter. Daylight visible through the roof from inside the loft across a wide area. Underlay that crumbles when you touch it. Battens that take a screwdriver easily. Nail heads that shear when a tile is lifted. Sagging between rafters where the battens have lost their grip. When we see three or more of these, we say so, and we quote both the repair and the re-roof so you can see the numbers side by side rather than take our recommendation on trust.

Access is often most of the cost

On a two-storey house, a repair that takes an hour on the roof can need a day of scaffold either side of it. That's why bundling repairs matters: if we're up there for the ridge, doing the verge pointing and the chimney flashing at the same time costs a fraction of coming back next year. When we survey, we photograph everything we can see so you can decide once about the whole roof rather than repeatedly about single defects.

Matching tiles on period roofs

Around Hampton Hill, Teddington and Strawberry Hill we work on a lot of hand-made clay plain tiles, clay pantiles and Welsh slate. Matching matters both visually and technically — a modern concrete tile is heavier than the clay it replaces and doesn't weather to the same colour. We source reclaimed where we can and tell you honestly when a perfect match isn't available, rather than fitting a near-enough tile in a spot you'll see from the pavement every day.

Underlay, ventilation and what happens when tiles come off

Once tiles are off, whatever is under them becomes visible, and modern practice is different from what was done in the 1930s. If we're re-laying an area we'll fit a breathable membrane, and where that changes the ventilation regime we'll check the eaves and ridge are ventilating properly. A well-sealed roof with no airflow is how condensation problems start — plenty of the 'mystery leaks' we're called to in January are condensation, not rain.

Guarantees and what a repair should come with

Every repair we do is photographed before and after and comes with a written scope. The scope and limitations are set out in writing; a patch repair on a 70-year-old covering cannot cover the rest of the roof. Anyone offering a 20-year guarantee on a single tile replacement is selling a piece of paper, not a roof.

Booking a proper look

We survey pitched roofs across Hampton, Twickenham, Teddington, Richmond, Kingston and the wider TW and KT postcodes. There's no charge, we go up rather than squinting from the drive where access allows, and you get photos and a written scope with options. If the honest answer is 'leave it another two winters', that's what we'll tell you.

FAQs

How much does a typical pitched roof repair cost?

Small tile or ridge repairs generally fall between £180 and £600 where the roof can be reached safely from a ladder. Anything needing scaffold usually starts around £900 once access is included.

Can you repair a roof in winter?

Yes for most jobs. We avoid stripping large areas in heavy rain or high wind, but tile replacement, flashing work and temporary make-safes all happen year round.

Is it worth repairing a roof I'm about to sell?

Usually yes for visible or leaking defects — a surveyor's report flagging an active leak costs far more in negotiation than the repair does. We'll provide a written scope you can pass to a buyer.

How do I know if my battens are sound?

From inside the loft, look for daylight, dark staining along the batten lines and any timber that feels soft. If you can push a screwdriver into a batten with light pressure, it has failed.

Get a fast quote

Family-run and Hampton-based. Tell us what you're seeing on the roof and we'll come and look properly before quoting.

Get a fast quote 07748 750711