4.9 average from 900+ Dayton homeowners
Chimney Waterproofing in Dayton, OH
Brick is a sponge. Every rain, your chimney soaks up water; every freeze, that water expands and cracks the masonry from the inside. Waterproofing breaks the cycle without trapping moisture.
- Licensed & Insured
- CSIA Certified
- 900+ 5-star reviews
Claim Your FREE Chimney Inspection
A $150 value, free this season
Fall booking · limited slots
- 4.9 Google & Yelp rating
- CSIA Certified
- NFI Certified
- BBB A+ Accredited
- 900+ Dayton homes served
What's included
- Vapor-permeable sealant — sheds water, still lets the masonry breathe
- Crown coating to seal hairline cracks
- Flashing inspection and repair where the chimney meets the roof
- Applied after any needed tuckpointing, not over failing joints
The mistake we see is a homeowner sealing a chimney that's already failing. Trapping water inside makes things worse. We repair the mortar and crown first, then apply a breathable sealant that lets vapor escape while keeping rain out.
In Dayton's freeze-thaw climate, waterproofing a sound chimney is one of the cheapest ways to add years to the masonry and avoid a five-figure rebuild down the road.
Book your free inspection
Claim Your FREE Chimney Inspection
A $150 value, free this season
Fall booking · limited slots
Questions we get a lot
Is waterproofing your chimney worth it?
In Ohio's freeze-thaw climate, yes. Sealing a sound chimney costs a fraction of a rebuild and adds years to the masonry by stopping water from soaking into the brick and freezing.
Do chimneys leak in heavy rain?
An uncapped or unsealed one can. Water gets in through a cracked crown, failing mortar, or bad flashing, and shows up as ceiling stains or a damp smell. We find the source, not just the symptom.
Are chimney leaks covered by homeowners insurance?
Usually not — leaks from age and weather count as maintenance rather than sudden damage. That's exactly why sealing and flashing repair are worth doing before the leak starts.
Isn't sealing my chimney going to trap moisture inside?
Not with the right product. We use a vapor-permeable sealant designed for masonry — it stops liquid water from getting in while still letting existing moisture evaporate out.