Ice dams are among the leading causes of roof leaks and interior water damage in Massachusetts. Cohasset homeowners should understand both how they form and what prevents them.
Ice dams are among the leading causes of roof leaks and interior water damage in Massachusetts. Cohasset homeowners should understand both how they form and what prevents them.
How Ice Dams Form and What They Destroy
- The Formation Cycle : Snow on a warm roof melts and travels toward the cold eave, where it refreezes. As the cycle repeats, a wall of ice builds and pushes melt water back up under the shingles.
- Ice Dam Removal Costs Add Up Fast : Removing a single ice dam can cost up to $4,000. That bill arrives before any damage has even been addressed.
- Interior Water Damage Is Real : After ice dam removal, roof leak repair alone can reach up to $24,000 depending on the damage inside your Cohasset home.
- Shingle and Gutter Damage Follow : Shingle repairs after an ice dam event run $130–$9,000. Gutter cleaning adds $75–$400, and snow removal tacks on another $200–$700.
- Heat Cable Installation Prevents Future Events : Proactive heat cable installation runs $500–$4,600 : far less than the combined cost of repairing damage a single ice dam season can cause.
- Insulation Damage Is Often Hidden : Wet insulation loses its ability to perform over time. Ice dam damage may not show up immediately but compounds quietly over multiple winters.
- Our Roofing System Addresses the Root Causes : Every set of roofing services in Cohasset, MA we complete includes Cobra Attic Ventilation and Leak Barrier Protection: the two strongest defenses against ice dam damage.
Your Best Options for Ice Dam Protection in Cohasset
Top Recommendation: Pair leak barrier protection with a fully ventilated roofing system for complete ice dam defense.
Best for Immediate Protection: GAF Leak Barrier at the eaves as a first layer against water infiltration.
Best Long-Term Solution: Full roof replacement in Cohasset, MA using our layered system with Cobra ventilation.
Don’t let ice dams threaten your Cohasset home this winter. Contact us for a free roofing assessment today.
- Request a free roofing estimate from Coastal Windows & Exteriors.
- Browse our complete roofing FAQ guide from Coastal Windows & Exteriors.
- Explore our Roofing Exterior Remodeling Home Improvement Help Center.
Last Updated: April 2026
Sources:
- Professional ice dam removal can cost homeowners up to $4,000. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
- Shingle repairs following ice dam damage can range from $130 to $9,000. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
- Roof leak repair costs can climb as high as $24,000. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
- Gutter cleaning typically costs between $75 and $400. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
- Snow removal following an ice dam event typically costs $200–$700. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
- Heat cable installation runs $500–$4,600 as a preventative measure against ice dam formation. Coastal Windows & Exteriors Angi Ice Dam Removal Cost, Angi’s cost guide covering ice dam removal pricing and related repair expenses. (2025)
