Shingle and Flashing Repair in McKinney
Shingles $150 to $700, flashing $200 to $600
Shingles keep water off the deck by overlapping. Flashing keeps water out where the overlap breaks: at a wall, a chimney, a vent pipe, a skylight, a valley. Most repair calls come down to one or the other, and both are fixed by putting the right piece back in the right order, not by adding sealant on top.
Shingle repair
A shingle is held by nails and a strip of sealant that bonds it to the one below. Heat ages that strip, and once it lets go, wind gets under the tab. The tab lifts, folds at the nail line and either tears off or lies there creased and leaking.
The repair:
- Break the seal on the course above without tearing it.
- Pull the nails and slide out the damaged shingle.
- Patch the felt underneath if it tore.
- Slide in a matching shingle, nail it in the right zone, and hand-seal the tabs that lost their bond.
Hail-bruised shingles get the same treatment when the damage is in one area. When it is on every slope, see hail and storm damage repair.
Flashing repair
- Pipe boots: cracked rubber replaced with a new boot, or a lead or high-temperature boot on the vents that bake.
- Step flashing: a separate bent piece under each course of shingles where a roof meets a wall. Missing, short or rusted step flashing is behind most leaks at a second-story wall.
- Kick-out flashing: the small diverter at the bottom of a roof-to-wall joint that keeps water out of the siding and the wall below. Often missing.
- Chimney flashing: step flashing up the sides, an apron across the front, a cricket behind wide chimneys, and counter flashing set into a cut mortar joint.
- Valleys: worn or badly cut valley shingles, or rusted open metal valleys, rebuilt with new underlayment.
- Skylights and vents: curb flashing reset or replaced, exposed nails sealed or swapped.
What it costs
A few missing or damaged shingles replaced runs $150 to $700. Flashing repair runs $200 to $600, with a pipe boot at the low end and chimney counter flashing at the high end. If the deck under a failed flashing has gone soft, that section is replaced by the sheet and priced before it is done.
Send a photo of the shingles in the yard or the stain by the chimney. Call (469) 457-4804 for shingle and flashing repair in McKinney and across Collin County.