Waterproofing

Protect your chimney from water damage and deterioration. A breathable repellent on sound brick, after any repairs, so weather stays on the outside.

Request a callbackOr call (410) 477-9144

Our credentials

  • CSIA Certified Chimney Sweeps
  • NCSG and NFPA member
  • Serving Maryland since 1980

Does a brick chimney need waterproofing?

If it is exposed to the weather on all four sides — which is every chimney — yes. Brick and mortar soak up water; when that water freezes it opens the cracks and flakes the faces that end in a rebuild. A breathable water repellent stops the soaking without trapping moisture inside.

What that means

This is not paint and not a sealer. A sealer traps water in the brick, where it freezes and does the damage anyway. The product we use lets water vapour out while keeping rain from getting in.

Order matters: repairs first, then waterproofing. Repointing, a cracked crown or lifted flashing all need fixing before the repellent goes on, or it is protecting a chimney that is already leaking from somewhere else.

It is applied to a clean, dry chimney in dry weather and lasts for years, not forever. We note the date on your report so you know when to ask again.

Signs you need this

  • White, chalky staining on the brick
  • Brick faces flaking or crumbling
  • A damp smell in the room after heavy rain
  • Repairs done recently that you want to last

If any of those sound familiar, ring us — it costs nothing to ask, and most of these are cheaper to deal with early.

Other things we do

Chimney sweeping

Thorough cleaning for a safer, more efficient fireplace. Removes creosote, the leading cause of chimney fires — once a year for a chimney in regular use.

Masonry repair

Repointing, tuckpointing and brick replacement. We photograph what we found before any work is agreed.

Crown and cap repair

New crowns and caps built to last. The crown throws water clear of the brick; the cap keeps rain, leaves and animals out of the flue.

Chimney liners

Stainless steel liners for safety and efficiency. Relining a damaged or unlined flue so combustion gases stay inside the chimney where they belong.

Inspections

Level 1, 2 and 3 inspections to ensure your chimney is safe and up to code, with a written report. Level 2 is what a house sale or an insurance claim usually needs.

Book waterproofing

Tell us what you need and we will ring you back to confirm a time.

Service address

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