Local chimney waterproofing in Green Cove Springs

Breathable silane or siloxane repellents for Green Cove Springs chimneys, applied the way the data sheet says once a free inspection clears the brick.

Fully licensed and insured
Locally owned
Family owned and operated
Same-day service

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(904) 920-5495 Free Inspection

Chimney waterproofing specialists who test before spraying

Locally owned in Jacksonville
Family owned and operated
100% satisfaction guaranteed
Free inspection and estimate
Same-day service available
10% off any service

Treatment day in Green Cove Springs is set by the weather window on the product's data sheet.

Free inspection and estimateWe splash test your Green Cove Springs chimney at no charge and tell you if the brick needs treatment at all.
No hidden feesRepairs and repellent are separate lines, and nothing is added once the spraying starts.
100% satisfaction guaranteedIf treated brick still soaks up water where we sprayed, we come back and put it right.

Call (904) 920-5495 Free Inspection

Protecting your house during treatment

Overspray is the main risk to the rest of the house during treatment. Silane and siloxane products react with glass that is left uncovered, and the maker of our product also asks for paint, plants and asphalt-based materials to be kept clear.

At a house in Green Cove Springs we cover nearby windows, skylights and glass doors, shield the roofing around the chimney, and protect siding, decks and plants below. Any overspray on a surface that was not covered is washed off at once with soap and water, as the directions say. You hear about each of those steps before the day, so you know what to expect. The brick and water check in Green Cove Springs costs nothing; phone (904) 920-5495 to set a day.

Green Cove Springs falls within Clay County. In the 2020 Census, Green Cove Springs counted 9,786 residents.

Test, repair, then treat

Crown, cap and flashing checked for openings first
Old film sealer tested and removed where it blocks treatment
Test patch left to dry beside untreated brick
Splash test shown to you when the Green Cove Springs job is done

Call (904) 920-5495 Free Inspection

How chimney waterproofing runs

Splash test every face
Water on each face shows where the brick soaks it up, and the crown, cap and flashing are checked for openings.
Openings closed and cured
Joints, brick, crown and flashing are repaired first, and the cure time on the data sheet runs its course.
Clean, patch test, then flood
The brick is cleaned, a test patch dries beside untreated brick, then the repellent goes on from the bottom up.
Dry and retest
Once it has cured, we splash the faces again so you can see the water bead off.

Silane or siloxane for Green Cove Springs brick

Silanes have small molecules that get into dense surfaces. Siloxanes are larger and bond to the silica in fired brick and mortar, which suits most clay brick chimneys.

The estimate for your chimney in Green Cove Springs names the product type and why it fits your brick.

10% off any service booked within 72 hours of inspection

Repairs and treatment together, waterproofing your Green Cove Springs chimney is 10% off.

Call (904) 920-5495 Free Inspection

Waiting after the joints are repointed

New mortar in a joint is still hardening and still giving off water for days after it is placed. Coating it too soon can interfere with that cure and lock the moisture in. BIA's pre-coating checklist sets a floor of 72 hours for freshly repointed mortar and repaired sealant joints, and the maker of the repellent we use sets the same interval after tuckpointing or other repairs.

On a chimney that has just been repointed, treatment is therefore booked as a separate visit. Writing the cure period on the estimate keeps anyone from spraying on the same afternoon the trowels are put away.

More is not better

A heavier coat of repellent can seem like better value. BIA's note says the coverage rate is critical, because putting on too much can cut the breathability of the masonry, and breathability is the whole reason for choosing a penetrant over a film. The maker of the product we use gives a coverage range per gallon that depends on how porous the surface is, and very dense brick takes less than soft brick. We work within that range, keep track of how much each face has taken, and record it in the job notes so the next treatment can be planned from real figures.

The splash test for when to reapply

You can check whether a chimney's treatment is still working without any tools beyond a spray bottle or a garden hose on a gentle setting. Wet a patch of each face. Brick that is still protected throws the water off in beads and keeps its dry color; brick that has lost its protection turns darker within seconds as it soaks the water up.

We run that test on every face, since the face that takes the most weather wears first. Only faces that absorb get another coat, which saves product and avoids stacking coats where they are not needed. The results, face by face, go into the job notes.

Tested before any repellent goes on in Green Cove Springs

Product name and type: silane, siloxane or a blend of the two
Surface cleaning method, and any old coating that must come off
Weather window: dry masonry, no rain forecast, temperature in range
Faces treated, and surfaces left out such as the crown top

Before any sealer goes on

Will waterproofing stop water coming into my fireplace?

Not if the water comes down the flue or through the crown. Those paths are closed with a cap or crown repair, and treatment of the brick faces comes afterward if it is still needed.

Can the treatment be done the same day as repointing?

No. Fresh joints need at least 72 hours to cure first, according to BIA and the product's data sheet, so treatment is a second visit.