Chimney Leak Repair Across New England — Find It, Fix It, Stop It
Water is a chimney's worst enemy. We find every entry point — flashing, crown, brick, or liner — and fix it properly so you're not dealing with the same leak next season.
Chimney Leak Repair & Waterproofing
Chimney Flashing Repair & Replacement
Flashing is the most common source of chimney leaks. We repair and replace step flashing, counter flashing, and saddle flashing along the roofline. We work directly with roofers or handle the full repair ourselves — properly installed flashing with quality sealant lasts decades.
Crown Repair & Sealing
The chimney crown protects the top of the masonry from rain and snow. New England's freeze-thaw cycles crack crowns quickly. We repair and reseal cracked crowns with flexible, waterproof crown coating that bonds to the masonry and expands/contracts with temperature changes.
Brick & Mortar Waterproofing
Spalling or porous brick and deteriorated mortar joints allow water to soak directly into the chimney structure. We apply professional-grade penetrating waterproofer to the exterior masonry — sealing water out while letting the masonry breathe. Lasts 10+ years.
Chimney Cap Installation
A missing or damaged chimney cap is an open invitation for rain to pour directly into the flue. We supply and install premium stainless steel chimney caps that seal out water, block animals, and prevent downdrafts — one of the best investments for chimney longevity.
Warning Signs Your Chimney Has a Water Problem
Water or dampness inside the firebox after rain
Staining on the ceiling or walls near the chimney
White staining (efflorescence) on exterior brick
Spalling or flaking brick on the chimney exterior
Musty smell coming from the fireplace
Rust stains on the damper or firebox
Mortar crumbling or missing between brick joints
Visible cracks in the chimney crown
Customer Reviews
What homeowners say about our chimney leak repair service.
Had water coming into our living room from the chimney every time it rained. Above Services found the problem immediately — failed flashing and a cracked crown. They repaired the flashing, resealed the crown, and waterproofed the brick. No leaks since. Fast and professional.
Robert A.
Boston, MA • April 2024
We noticed staining on our ceiling near the fireplace after a heavy rain. Above Services came out, did a full inspection, and found multiple entry points — bad flashing, deteriorated mortar, and no cap. They fixed everything in one visit. Couldn't ask for more.
Linda M.
Quincy, MA • May 2024
Chimney leak was getting worse every winter. Above Services waterproofed the exterior brick, repaired the step flashing along the roofline, and installed a stainless steel cap. The job was done cleanly and they cleaned up completely afterward. Excellent service.
Thomas B.
Nashua, NH • March 2024
Chimney Leak Repair FAQ
Common questions about chimney water problems in Massachusetts and Southern NH.
What causes a chimney to leak?
Chimney leaks have several common causes: damaged or improperly installed flashing (the metal seal where the chimney meets the roof), a cracked or missing chimney crown, deteriorated mortar joints, spalling brick that absorbs water, a missing or damaged chimney cap, or a cracked flue liner. Often multiple entry points are present at once. New England's freeze-thaw winters accelerate all of these.
Can a leaking chimney cause structural damage?
Yes — and quickly. Water entering through a chimney can saturate the surrounding masonry, rot roof framing and sheathing, damage interior walls and ceilings, corrode the damper and liner, and cause mold growth inside the wall cavity. What starts as a small leak can become major structural damage within a single winter. Early repair is always far less expensive than letting it go.
How do you find where a chimney is leaking?
We conduct a thorough visual inspection of the flashing, crown, mortar joints, brick face, chimney cap, and flue from both the roof level and inside the firebox. For difficult-to-locate leaks, we use a camera system to inspect the flue liner and can perform a water test with a garden hose to isolate the exact entry point.
What is chimney waterproofing and does it really work?
Chimney waterproofing involves applying a penetrating water repellent to the exterior masonry that blocks liquid water from soaking in while still allowing the masonry to breathe and release trapped moisture. High-quality waterproofing products (we use professional-grade formulas) can prevent water infiltration for 10+ years and significantly extend the life of the masonry.
How much does chimney leak repair cost?
Cost depends on what is causing the leak. A minor crown seal costs significantly less than replacing full step flashing, which requires working with roofers. We inspect and identify all causes before starting work and give you a clear quote. Call (781) 921-6228 to schedule an inspection.
My chimney is leaking in heavy rain only — do I still need to fix it?
Yes. A leak that only appears in heavy rain still indicates a real entry point. The only reason it doesn't leak in light rain is that the volume of water hitting the chimney isn't high enough to overwhelm the partially-failing seal. That threshold will decrease as the damage progresses, and every freeze-thaw cycle makes it worse. Early repair is always cheaper.
Stop Your Chimney Leak Before Winter
Every rain cycle and freeze-thaw makes chimney water damage worse. Above Services provides fast, thorough chimney leak repair throughout New England.
Licensed & Insured · CSIA Certified · Serving New England Since 2013