Chimney waterproofing that lets the brick breathe in Watergate
We treat the outside faces only, and the written record says exactly what went where.
- 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
- Sandy mortar washing out of joints
- Hairline gaps between brick and mortar
- Worn, rounded brick edges from past blasting
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How we waterproof chimney masonry
A test area comes first
Product makers ask for a small test area on each surface before the whole chimney is treated. It shows how the masonry absorbs the product, whether the appearance changes and how much material the surface takes.
The test should include any earlier patches or repairs, because those can behave differently from the original brick. On a chimney in Watergate, we apply the test with the same method we would use for the full job. If the result is not what you want, for example a darker look, we talk about it before going further.
The roof junction comes before treatment
Where the chimney meets the roof, water is handled by flashing, not by the brick. If the flashing is loose, rusted or cut short, water gets in there, and treating the brick above does nothing about it.
We check the roof junction while preparing a waterproofing scope. If it needs work, that goes on the estimate as chimney flashing repair, a separate item. Treating the faces while the junction leaks would leave the main water path open. Once the flashing is sound, the brick above it can be judged on its own.
Staining on treated masonry
Brick industry guidance notes that if staining appears on masonry after a clear treatment, it can be harder to remove than it would have been from untreated brick. The treatment holds some stains near the surface.
That is one reason cleaning comes first. The source of any staining, such as rusting metal or runoff from the roof, should also be dealt with before treatment. We point out stain sources during the inspection. Removing them first keeps them from being locked in.
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.
What we look at before sealing a chimney in Watergate
- Sealant joints replaced and cured first
- Test area including patched sections
- Application method from the data sheet
- Roofing and metal parts covered
Waterproofing answers for homes in Watergate
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.
Does a metal flue inside a framed box need waterproofing?
Not with a masonry repellent. A framed chase has no brick to treat. Its water problems come from the cover at the top, the collar around the pipe and the siding or stucco joints, and we look at those instead.
What should I mention when booking a waterproofing check in Watergate?
Say what prompted the call, such as dark brick after rain or flaking faces, and anything you know about earlier treatments or repairs. Papers from past chimney or roof work help. Approximate details are enough, and the visit fills in the rest.
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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