Waterproofing chimney masonry after repairs in Lauderhill

Make the top watertight first

Repellent makers ask for the top of a wall to be capped and watertight before treatment. On a chimney, the top is the crown and the cap. If rain can get in at the top, treating the sides will not stop it, and trapped water can do harm.

We check the crown, the joint around the flue and the cap before recommending waterproofing. If the top needs work, it goes on the estimate first, under its own name. Treatment of the faces follows once the top is sound.

Nothing below ground level

Product data for penetrating repellents usually rules out surfaces below ground. Masonry in the soil stays wet, and a repellent there cannot do its job. On an outside chimney that runs down to the ground, the treatment stops above grade.

We check how the base of the chimney meets the ground. Soil or mulch piled against the brick keeps it wet and should be pulled back. Splash from bare ground can soak the lowest courses too. Those are simple fixes, and they matter more at the base than any coating would.

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.

What the waterproofing estimate lists

A waterproofing estimate should show the full sequence, not just the coating. For a chimney in Lauderhill, ours sets out the following, with each repair on its own line.

Anything that could change the plan, such as an old coating found during the test, is noted with how it would be handled. Upfront pricing covers the listed items, and changes come to you before they happen.

• Repairs to finish first, such as joints, brick or the top
• Cleaning and the drying time before treatment
• The product named, and the faces it covers
• Protection for glass, roofing and plants