Chimney waterproofing that lets the brick breathe in Port Royale

Moss and algae come off before the repellent

Moss, algae and small plants on a chimney hold water against the brick and block a repellent from soaking in. They have to come off before treatment. Roots in mortar joints can also open the joints further.

We remove growth with a method suited to the masonry, avoiding harsh treatments that could damage the surface. Where roots have opened joints, those joints are listed for repointing. The treatment then goes onto clean, sound masonry, rather than over growth that will lift it.

Questions to ask about a sealing proposal

A proposal to seal or waterproof a chimney should answer a few basic questions. These help you check any quote, including ours.

If a quote cannot answer these, it is worth asking why. Our estimate addresses each in writing, and we are glad to go through them in person.

• Does the product penetrate or form a film
• Which repairs will be done before it goes on
• Will a test area be done first
• What happens to glass, roofing and plants nearby

The written record of the treatment

When the work is finished, you receive a written record of it. It names the product, the faces treated, the repairs done beforehand and the date of application. It also notes any area left untreated and why.

Keep it with your home papers. Before anyone applies another product later, the record tells them what is already on the brick. That matters, because some treatments do not combine well. It also helps judge, down the line, whether a renewal is due.

How the waterproofing assessment runs

A waterproofing visit in Port Royale starts with a look at the chimney from the ground and a talk about what prompted the call. Where access is safe, we check each face, the joints, the top and the roof junction up close. Earlier coatings and patches are noted.

We then explain what we found and whether treatment makes sense, and in what order. You receive a written estimate with repairs and treatment set out separately. Nothing is applied during the inspection, and a test area, if needed, is agreed first.