Chimney Waterproofing in Queens & Long Island
Brick and mortar absorb water, which then freezes and breaks the masonry apart. A breathable, vapor-permeable water repellent made for masonry sheds water while still letting moisture escape — unlike paint or sealers that trap it.
What is chimney waterproofing?
Brick and mortar are porous. In wet, freezing weather the water they absorb expands and breaks the masonry apart over time.
A breathable, vapor-permeable masonry water repellent reduces how much water the brick absorbs while still letting moisture inside escape. Paints and non-breathable sealers trap moisture and can make spalling worse.
Warning signs
- Brick that darkens and stays wet after rain
- White deposits on the brick
- Early signs of spalling
- After repointing or brick repair
How SkyFlue does it
- 1Inspect and photographWe look at the chimney inside and out and photograph what we find.
- 2Repair firstCracks, mortar and the crown are fixed before applying repellent.
- 3CleanThe surface is cleaned so the repellent can absorb.
- 4ApplyA breathable repellent made for masonry.
What affects the scope
- Repairs needed first
- Chimney size
- Brick condition and porosity
When to call
Consider waterproofing after masonry repairs or when brick stays saturated after rain. It doesn't replace flashing or crown repairs.
Call (934) 271-0372Chimney Waterproofing FAQ
Is chimney waterproofing the same as painting or sealing?+
No. We use breathable, vapor-permeable masonry repellents. Paint and non-breathable sealers trap moisture and can cause damage.
Will waterproofing stop a leak?+
Not on its own. Flashing, crown and cap problems must be repaired first.
When should it be applied?+
After masonry repairs are complete and the brick is clean and dry.
Does it change the look of the brick?+
Masonry repellents are designed to be clear and not noticeably change appearance.