Manchester winters bring repeated freeze-thaw cycles that crack and lift flashing around skylights, especially on older mill-era homes in the North End and Rimmon Heights. We see this most often where original lead or copper step flashing has corroded after decades of exposure. Proper repair requires removing shingles up the roof slope, installing new counter flashing that ties into the existing underlayment, and sealing all joints with high-grade butyl tape rated for our temperature swings.
Homes in Amoskeag Millyard and Bakersville often have low-slope sections or multiple skylights close together, which creates extra water channels that standard kits miss. We cut back the roofing to the nearest course, install new apron flashing at the bottom, and run cricket flashing on the uphill side when the skylight sits more than four feet down the slope. This prevents the ice dams that form along Elm Street corridors and send water under the skylight frame.
Hillsborough County building practices from the 1980s and 1990s frequently used aluminum flashing that has now pitted. We replace it with 16-ounce copper or stainless steel that matches the existing roof color and extends at least six inches under the shingles. Every repair includes a water test from the roof ridge down to the gutter before we leave the job.
Technician insight
In Manchester, the thing that catches most people out with Skylight Flashing Repair is how quickly ice dams form along the North End and East Side roofs when step flashing is only an inch short; the heavy snow load pushes water right under the skylight frame before homeowners notice.
West Side Ice Dam Leak
Water stains appeared on a second-floor ceiling after a January thaw. We found the original aluminum flashing had corroded where it met the skylight curb. We removed shingles up to the ridge, installed new copper step and counter flashing, and added a cricket. No further leaks after the next snow cycle.
Skylight Flashing Repair Services We Offer
✓Step Flashing Replacement
Remove and replace corroded step flashing on skylight sides to stop water entry during heavy snow melt in Manchester winters.
✓Counter Flashing Installation
Install new counter flashing that integrates with existing underlayment on older homes in the West Side and South End.
✓Cricket Flashing Fabrication
Build and install custom cricket flashing above skylights on low-slope roofs common in Amoskeag Millyard buildings.
✓Apron Flashing Repair
Replace damaged apron flashing at the bottom of skylights to prevent leaks into attics in North End and Hallsville homes.
✓Rubber Boot Flashing Upgrade
Swap aging rubber boots for high-temperature EPDM or silicone boots rated for Manchester's summer roof surface heat.
Skylight Flashing Repair Cost in Manchester, NH
| Service | Typical Range | What Affects It |
|---|---|---|
| Single Skylight Flashing Repair | $450–$850 | Price rises with two-story access or multiple skylights close together |
| Cricket Flashing Addition | $300–$550 | Required on low-slope sections common in mill buildings |
| Full Skylight Flashing Replacement | $750–$1,400 | Includes new copper on all four sides and water test |
Ranges are typical for Manchester, NH and confirmed with an exact written quote before any work starts.
How it works
- 1
Roof Inspection
We climb the roof and check flashing condition, shingle overlap, and any existing water stains visible from the attic.
- 2
Material Removal
Shingles are lifted carefully from the skylight edge up to the ridge, preserving reusable pieces where possible.
- 3
New Flashing Install
New step, counter, and apron flashing are fitted and secured with roofing nails and butyl sealant.
- 4
Water Test and Cleanup
We run water across the repair and confirm no entry before reinstalling shingles and clearing all debris.
Pricing
Upfront quotes after on-site inspection; price varies with roof access and skylight count.