Roof repair cost

Most roof repairs are small. A pipe boot that has cracked, a dozen shingles lifted by wind, a length of flashing that has pulled away from a chimney. Those jobs are $150 to $600 and take a two-person crew part of a morning.

What makes roof repair feel expensive is the minimum. A roofer has to load a truck, drive out, set ladders and set up fall protection whether the fix takes twenty minutes or four hours. That fixed cost is $150 to $350 in most markets, and it is charged even if the repair itself is trivial.

Typical repair prices

Emergency tarping after storm damage is usually $250 to $800 and is often folded into the eventual repair if the same contractor does both.

Finding the leak costs money too

Water rarely enters where it appears. It runs along a rafter and drips somewhere else entirely, which is why a stain in the middle of a ceiling often traces back to a chimney twenty feet away. Some contractors include diagnosis in the repair price; others charge $150 to $400 for a leak investigation and credit it against the work if you hire them.

Ask which it is before the visit. It is a fair charge either way, but it should not be a surprise on the invoice.

Repair or replace

The arithmetic is usually simpler than it feels. Compare the repair quote against the replacement cost divided by the years you would buy.

A $900 repair on a roof with ten years left is worth doing. The same $900 repair on a roof with two years left buys you $450 a year, against a full replacement at around $11,800 over 25 years, or $470 a year. At that point you are spending real money to postpone a decision by two years.

Three things push the answer towards replacement:

Age. An asphalt roof past 20 years is near the end regardless of how it looks. Granules in the gutters and shingles that curl at the corners are the tell.

Repeat leaks. A roof that has leaked in three separate places has a systemic problem, not three coincidences. Usually the underlayment has failed or the original installation was wrong.

Scope. Once a repair covers more than about a third of the roof, the per-square price of the repair approaches the per-square price of a replacement, and the replacement comes with a fresh warranty.

Insurance is worth checking first

If the damage came from a single sudden event, a storm, hail, or a fallen branch, it may be a claim rather than a repair bill. If the damage came from age, it is not. Filing a claim that gets denied still goes on your claims record, so it is worth understanding the distinction before you call.

Frequently asked questions

Can I repair a roof myself?

Replacing a handful of shingles on a low-pitch, single-story roof is within reach for a careful homeowner. Anything involving flashing, valleys or a steep or two-story roof is not. Roofing has the highest fall-injury rate of any residential trade, and a botched flashing repair causes a leak that is worse than the one you started with.

Will a repair match my existing shingles?

Rarely exactly. Shingles fade with sun exposure, and manufacturers discontinue colors. A good roofer pulls replacement shingles from a less visible slope and puts the new ones there, which hides the mismatch.

Does a repair void my roof warranty?

A manufacturer's material warranty is not voided by a competent repair, but a workmanship warranty from the original installer usually is if someone else does the work. Check who holds each one before you call a different contractor.

How long should a repair last?

A properly executed flashing or boot repair should last as long as the roof around it. If a repair fails within two or three years, the problem was misdiagnosed rather than badly executed.