Dryer Vent Repair and Rerouting in Flower Mound
Most repairs: $150 to $400
Cleaning a vent that is kinked, disconnected in the attic or made of plastic is a temporary fix at best. Two-story plans across Denton County commonly put the laundry room upstairs and vent the dryer through the attic to a roof cap, a run of 25 to 40 feet with several elbows, right at the 35-foot code limit. Those runs clog in a year and are the ones most likely to be disconnected in the attic. When the run itself is the problem, it gets repaired or rebuilt.
Common problems we fix
- Disconnected joints in the attic that have been blowing lint onto the insulation for years. Reconnected with rigid duct and foil tape, never screws, which catch lint.
- Plastic or foil flex inside walls and attics, which melts and traps lint. Replaced with rigid metal duct.
- Crushed transition hose behind the dryer. Replaced with a semi-rigid connector and a periscope fitting where the dryer sits tight to the wall.
- Runs that exceed code length for the number of turns, which no amount of cleaning fixes. Rerouted to a shorter path or fitted with a listed dryer exhaust duct power ventilator.
- Failed or screened exterior caps that clog, let in birds, or will not close. Replaced with a proper damper cap.
- Roof terminations that have rusted through or were installed with a screened cap.
Power ventilators for long runs
Generic inline booster fans are not allowed in a dryer duct under the residential code. When a run cannot be shortened, the fix is a dryer exhaust duct power ventilator listed for that use, installed to its instructions with a pressure switch and an access point for cleaning the fan itself.
Code
Texas adopts the International Residential Code statewide, and the edition varies by city: Flower Mound moved to the 2024 codes on October 1, 2025, while Lewisville and Denton are on the 2021 edition. Both editions cap a dryer exhaust duct at 35 feet, deducting 5 feet for every tight mitered 90-degree elbow and under 2 feet for a smooth long-radius one, and require smooth metal duct with no screws protruding more than an eighth of an inch into the airflow, a backdraft damper at the termination, and no screen on it. Every repair we do meets it, and we leave you a written description of what was changed.
Pricing
Most dryer vent repairs in Flower Mound run $150 to $400. Full reroutes and power ventilator installations are priced after the crew has seen the run.
A photo of the attic run or the exterior cap tells us most of what we need. Send it after you call (972) 460-5954 for repair in Flower Mound and across Denton County.