Breathable waterproofing for chimney brick in Bay Harbor Islands
Repairs and treatment appear on separate lines, so you can approve one now and the other later.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Clues that the brick needs a repellent or repairs
- Flaking or crumbling brick faces
- Moss or green growth on the masonry
- Rust stains running down the brick
- Water beading on one face but not another
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How we waterproof chimney masonry
Moisture from inside the chimney
Some chimney dampness comes from inside rather than from rain. Moisture can form in a flue when warm exhaust meets cool masonry, and water can rise from the ground into the base of an outside chimney. A repellent on the outside does not fix either.
In fact, slowing drying through the outer face can make an inside moisture problem worse. We look for the signs of it, such as staining high on the inside of the flue or damp low on the chimney near the ground. If the moisture is coming from within, the answer is a different repair.
Framed chimneys have nothing to treat
Some chimneys are a metal flue inside a framed box covered in siding or stucco. There is no brick to waterproof. Water problems on these chimneys come from the metal cover at the top, the siding joints and the finish.
If your chimney is framed, we tell you that a masonry repellent does not apply. We look instead at the cover, the collar around the flue pipe and the wall covering. Any repairs there are priced under their own names, so you are not sold a treatment the chimney cannot use.
Approving the treatment soon after your inspection
The free inspection gives you findings on the masonry, the repairs it needs and whether a repellent makes sense. Waterproofing you say yes to inside 72 hours of that free inspection gets a 10% discount. The clock starts with the visit to your home, not with the phone call.
You do not need to decide while we are there. Read the estimate, look at the product data and ask whatever you need. The discount is simply there for people who have their answers inside that window.
Deciding when to renew a treatment
Whether a treatment needs renewing is best judged by how the brick behaves, not by a fixed interval. If water still beads and runs off after rain, the treatment is still working. If the faces darken and hold water again, it is fading.
We can check this on a maintenance visit, sometimes by wetting a small area to see how it responds. If renewal makes sense, the same preparation applies, including any repairs. The written record from the first treatment tells us what product is already on the brick.
Checked before any repellent is priced
- Hairline separations along joint edges
- Test area including patched sections
- Nearby vents and intakes covered
- Rain-free period after application
Questions about chimney waterproofing
Can you treat a chimney that has been painted?
A clear repellent cannot reach the pores through paint, so it would do little. The choice is between caring for the paint and removing it, and removal carries its own risks for the brick face. We explain both before recommending either.
Does waterproofing cover the inside of the flue or the firebox?
No. The treatment goes on the outside masonry only. The flue, smoke chamber and firebox face heat and combustion gases rather than rain, and masonry repellents are not made for that exposure. Interior problems belong to a different service, and we can note what we see.
Can one face be treated without doing the whole chimney?
Yes, where only some faces absorb too much water. Treating the whole stack gives an even look and even protection, while treating the worst faces may cost less. The estimate lists the faces included, and the test area shows how each one responds.
More Ways to Care for Your Fireplace
- Chimney Sweep and Chimney CleaningArrange careful chimney cleaning in Miami with a defined scope, protected work area and useful findings.
- Chimney RebuildRebuild the affected chimney section with the retained structure, roof connection and passage included in the plan.
- Chimney Leak RepairFind the chimney water entry point and plan a repair before restoring the damaged finish.
- Chimney Animal RemovalAssess occupied chimney openings and plan appropriate follow-up cleaning or entry protection.
- Ventless Gas Fireplace ServiceService the identified vent-free appliance without bypassing its required safety components.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo