Chimney Waterproofing in Los Angeles, CA
Brick and mortar absorb water. Los Angeles does not see many storms, but the ones it gets are heavy, and an atmospheric river can soak a chimney for days. Water that gets into the masonry weakens mortar, rusts dampers and caps from the inside and eventually finds its way to a ceiling.
What to Know About Chimney Waterproofing in Los Angeles
Waterproofing slows that down. A breathable repellent lets the brick shed rain while still letting trapped moisture escape, which is the balance masonry needs.
Chimney waterproofing is quoted after an inspection, based on the size of the chimney and any repairs needed first.
We provide chimney waterproofing across Los Angeles from our office in Valley Village. The city pages below explain what is typical in each area.
What Waterproofing Involves
The chimney is inspected and any repairs, such as cracked crowns or failing mortar, are done first, because waterproofing over damage only hides it. The masonry is cleaned, the crown is sealed with a flexible crown coating, and a vapor-permeable repellent is applied to the brick or stone faces.
We check the flashing at the same time, because a leak at the roofline will not be fixed by treating the brick.
Why It Has to Breathe
Ordinary paint or clear sealers form a film that traps moisture inside the brick, which leads to spalling. Masonry repellents designed for chimneys penetrate the surface and repel liquid water while allowing vapor to pass out.
Is Waterproofing Worth It in Los Angeles?
For a sound chimney in good repair, it is a modest preventive cost that lasts several years. For a chimney that is already leaking, the leak needs to be found and repaired first. We will tell you which applies to yours.
Chimney Waterproofing in Los Angeles is priced after a free estimate. Chimney waterproofing is quoted after an inspection, based on the size of the chimney and any repairs needed first.
Signs You Need Chimney Waterproofing in Los Angeles
How Chimney Waterproofing Works
Every chimney waterproofing job follows the same steps, and you get photos of the work.
- InspectWe check the crown, brick, mortar and flashing for damage and leaks.
- Repair firstAny cracks or failing mortar are repaired before waterproofing.
- CleanThe masonry surface is cleaned so the repellent can penetrate.
- Seal and treatThe crown is sealed and the breathable repellent is applied.
- ReportYou get photos and notes on the work and the expected service life.
Chimney Waterproofing by City
We provide chimney waterproofing in each of these cities. Pick yours for local information.
Chimney Waterproofing Questions in Los Angeles
How much does chimney waterproofing cost?
How long does chimney waterproofing last?
Can I paint my chimney to waterproof it?
Will waterproofing stop an existing leak?
Does waterproofing change how the chimney looks?
Related Services in Los Angeles

Chimney Repair
Crowns, mortar joints, flashing and firebox repairs, matched to the masonry and quoted after inspection.
Chimney Repair details →
Chimney Cap Installation
Stainless steel caps with spark-arrestor mesh that keep out rain, animals, debris and embers.
Chimney Cap Installation details →
Chimney Inspection
Level 1 visual and Level 2 camera inspections, with photos and a written report you can use.
Chimney Inspection details →Book Chimney Waterproofing in Los Angeles
Call for a price range on the phone, or send a request and we will confirm a time window.
