How much does ridge vent installation cost?
Short answer. Ridge vent cost depends mostly on whether it goes in during a full roof replacement, where it is a modest line item priced by the linear foot, or is retrofitted onto an existing roof, where the crew must remove and replace the ridge cap shingles and cut a new slot. The price scales with ridge length, roof pitch and access, plus any work to close off old box vents or add soffit intake.
What drives the price
- Linear feet of ridge. Vent material and labor are both priced per foot, so a long ranch ridge costs more than a compact hip roof.
- New roof vs retrofit. On a replacement, cutting the slot is a small step because the cap shingles are coming off anyway. On a retrofit, the old cap shingles must be removed and new ones installed, and they may not match faded field shingles.
- Pitch and height. Steep or two-story roofs need more safety setup.
- Closing off old vents. Removing box vents or turbines and patching the deck and shingles adds labor and materials.
- Intake work. If the soffits are solid or blocked, opening them and adding baffles can cost as much as the ridge vent itself, and it is not optional if you want the ridge vent to work.
How it shows up on an estimate
Professional estimates, including insurance estimates written in Xactimate, list ridge vent as its own line item by the linear foot, separate from the hip and ridge cap shingles. If your roof had a ridge vent before a covered storm loss, it is normally replaced like kind on the claim. Adding one where none existed is usually an upgrade you pay for, unless a code requirement applies and your policy carries ordinance or law coverage.
Getting a fair number
Ask each roofer for ridge footage, the vent product, the net free area it adds and what intake changes are included, so you compare the same scope. See roof replacement cost in Georgia and how to choose a roofing contractor.