Chimney waterproofing, planned around your brick, in Doral
The estimate names the product, the faces it covers and the repairs that must come before it.
- 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
- Brick that stays dark long after rain
- Some faces drying slower than others
- Hairline gaps between brick and mortar
- Uneven color across repaired sections
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How we waterproof chimney masonry
A repellent does not strengthen brick
A water repellent changes how brick treats water. It does not bind crumbling material back together or replace what weather has worn away. Preservation guidance is clear that a repellent is not a consolidant, even when it soaks a little way below the surface.
If brick faces are soft, sandy or falling away, treatment will not hold them. It may even form a crust that comes off and takes more of the face with it. Damaged units are repaired or replaced first. We explain which bricks need attention before any treatment is priced.
Treatment goes on dry masonry
A repellent applied to damp brick does not soak in well. Worse, if it does bond, it can hold that moisture inside the wall, because liquid water cannot pass back out through the treated surface. Preservation guidance warns against treating a damp wall for exactly this reason.
We check that the masonry has dried properly before application. After rain or cleaning, that can mean a wait. If the brick stays damp for reasons of its own, such as moisture from inside, we look for that cause before any treatment is considered.
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.
When the test area changes the plan
A test area sometimes shows something the inspection could not. The brick may take far more product than expected, an old coating may stop the repellent soaking in, or the look may change more than you want.
If that happens, we stop and explain what the test showed. Any change to the scope, such as removing an old coating or choosing a different product, comes to you as a revised item with its own figure. Nothing beyond the agreed work goes ahead without your approval.
Checked before any repellent is priced
- Drying time before application
- Named penetrating repellent and its data sheet
- Faces and height to be treated
- Rain-free period after application
Questions about chimney waterproofing
Do repairs have to be finished before the treatment goes on?
Yes. Brick industry guidance puts repairs first, and product data asks for sealant joints to be in place and cured and for the top to be watertight. New mortar also needs its curing time. We set out that order in the estimate so nothing is rushed.
Is there a charge for the waterproofing inspection?
No. The inspection and the written estimate that follows are free. You pay only for work you approve, at the figure in the estimate. Any change after a test area comes to you as a separate item before it goes ahead.
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.
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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