Roof Leak Repair in Alpharetta, GA

The stain on your ceiling is not the leak. That's worth saying clearly up front, because where water shows up inside your home and where it's entering your roof are almost never the same place. Water gets in, travels along decking or rafters, pools in a low spot, and finally soaks through the ceiling material somewhere completely unrelated to the actual entry point. If you don't find the real source and address it, the stain comes back — guaranteed.

We've traced roof leaks in Alpharetta homes that had been chased for years by previous contractors who kept caulking over symptoms. The real entry points — a cracked pipe boot, a section of failed step flashing, a nail that had backed out and punctured a shingle — were sitting there undiscovered the whole time. Getting a roof leak right requires methodical inspection, not guesswork.

A Real Job from the Devonshire Neighborhood — Alpharetta

A 3,800 sq ft traditional two-story in Devonshire, built in 1999. Stone and stucco exterior, tile accents on the porch, a complex roofline with multiple valleys and a chimney on the rear elevation.

A recurring water stain in the master bedroom closet on the second floor. The homeowner had it repaired twice in the past two years — once by a handyman who caulked around a skylight, and once by a roofer who applied lap sealant around the chimney base. The stain kept coming back every few months.

We started on the roof — inspection of the skylight, the chimney, all flashing, every pipe boot. The skylight and chimney flashing were actually fine. We went into the attic. From inside, we could see a water trail on the decking that started above the valley where the rear dormer met the main roof — a spot that had been overlooked because the staining on the ceiling made everyone think chimney or skylight. In that valley, we found that the original installer had run the step flashing short by about three inches at the low end, so every time rain ran heavy volume through that valley it would get under the shingle edge and travel down the rafter. It had been doing this for twenty years.

Pulled back the shingles in that valley section, extended and properly integrated the step flashing, re-laid the valley underlayment, and reinstalled the shingles. While we were up there, we also replaced two cracked pipe boots that weren't causing issues yet but were close. The chimney caulk the previous contractor had applied was cleaned off and replaced with proper flashing sealant as a maintenance measure.

The homeowner went through an entire fall and winter — the wettest stretch the Alpharetta area had seen in years — without a single recurrence. That's what finding the actual source does.

The Most Common Leak Sources in Alpharetta Homes

Pipe boots are the number one source of leaks on homes built in the 1995–2010 era — which covers a large percentage of Alpharetta's housing stock. The neoprene rubber collar deteriorates in about 12–18 years under Georgia UV exposure. Once it cracks, water tracks down the pipe and into the structure with every rain. It's almost impossible to see from the ground.

Step flashing failures at dormers and chimneys are the second most common source. Many of Alpharetta's larger homes have complex rooflines with multiple dormers, and step flashing at every one of those intersections is a potential entry point. Original installation quality varies dramatically — we see homes where it was done by the book and homes where someone took shortcuts that held for fifteen years before finally failing.

Valley failures come next — particularly in homes with steep, high-volume roofs where water load in valleys is significant. Ice-and-water shield degrades over time, and once it loses its bond, water can wick under shingles in the valley channel.

We Inspect From Both Sides

Every leak inspection includes attic access. The roof surface tells you where damage exists. The attic tells you where water has been traveling. Combined, you can trace a leak reliably. If we can't determine the source from visual inspection, we conduct a controlled water test — systematically isolating sections of the roof to narrow down the entry point. See our free roof inspection page for more on how we approach diagnostics.

Dealing with a mystery leak? Call (678) 766-9646 — we'll find it.