DIY Roof Repair: What Is Safe to Do Yourself and What Is Not

Falls are the leading cause of death in construction. OSHA reports 389 fatal falls to a lower level out of 1,034 construction deaths in 2024, based on Bureau of Labor Statistics data. Those are trained workers, many of them roofers, on job sites with safety rules.

Michigan's own data is just as blunt. A Michigan State University hazard alert from the state's fatality surveillance program counted 82 workers who died in Michigan after falling from a roof, roof decking or trusses between 2001 and 2018, and found that none of them was wearing fall protection. The causes it lists will sound familiar to anyone who has been on a roof: an unprotected edge, losing track of where the edge is, stepping backward while working, ice or loose material underfoot, and surfaces like skylights that cannot hold a person.

Ladders add their own risk. The CDC has reported that 43 percent of fatal falls over the prior decade involved a ladder. Federal rules require employers to protect residential construction workers working 6 feet or more above a lower level with guardrails, safety nets or a personal fall arrest system. A homeowner on a roof usually has none of those.

For gutter cleaning, a look at the first course of shingles, or getting a photo of a flashing from the eave, a ladder is reasonable for many homeowners. OSHA's ladder rules for workers are a sound standard to follow at home too.

The most common homeowner repairs we see fail are well intended. Caulk or roof cement smeared over a cracked pipe boot or chimney flashing usually stops the water for a season, then traps more water and makes the real repair larger. Nails driven through the face of a shingle to hold it down create new holes. Pressure washing strips granules.

Walking on the roof can do damage too. GAF's installation instructions warn that asphalt shingles are rigid in cold weather and can break easily, which is why a winter walk to look at a leak can crack shingles that were fine. Shingle warranties exclude damage from foot traffic too; GAF's, for example, lists the impact of traffic on the roof as excluded damage, so cracked shingles from a DIY visit are not a warranty claim.

Insurance is the last reason to be careful. Damage you cause while trying to fix the roof is not the same as storm damage, and it may not be treated the same way by your insurer. Document the original damage before anyone touches it.

The handoff point is simple: if the job requires standing on the roof surface, opening shingles or touching flashing, it belongs to a roofer who works with fall protection and carries workers' compensation and liability insurance. That includes tarping. A tarp installed badly catches wind, tears off shingles and adds fastener holes, and installing one means working at the edge of a wet roof.

Your groundwork still matters. Photos, a leak log and attic pictures shorten the diagnosis and help a roofer arrive with the right parts. At Stellar, inspections are free, and every repair starts at $500. If you have several small items, such as a boot, a few shingles and a loose piece of flashing, one visit for all three costs less than three visits.