Cap installation
An open flue gets a screened cap to keep rain out of the inside of the chimney.
Masonry Repair
Chimney Waterproofing Burlington, NJ
A Burlington chimney technician can apply a siloxane-based water repellent to chimney masonry, after cracks, joints and the crown are repaired. One call to (609) 699-0240 reaches a nearby chimney waterproofing pro.
A chimney standing above the roof takes rain from every direction, and its brick and mortar absorb much of it. Over time, the moisture feeds freeze-thaw damage, efflorescence, rusted dampers and deteriorated flue tiles. The goal of waterproofing is to keep that rain on the surface so it runs off.
Not every sealer is safe for chimneys. Chimney masonry needs a vapor-permeable water repellent, usually siloxane or silane based, that soaks into the brick and repels liquid water while letting water vapor out. Paint, acrylic coatings and film-forming sealers do the opposite: they trap moisture inside the brick, and when it freezes, it blows the face off the brick.
A repellent only helps on sound masonry. Cracks, open mortar joints, a cracked crown, failed flashing and a missing cap all let in far more water than porous brick does, so those are repaired first. Once repairs have cured, the repellent is applied to clean, dry masonry.
Chimney Waterproofing is often paired with chimney leak repair and chimney tuckpointing, depending on the cause.
Looking for Burlington chimney waterproofing? Call (609) 699-0240 and describe the problem to a chimney sweep who works in Burlington.
Call nowThe process
The waterproofing process
Here is how a chimney technician typically waterproofs a chimney.
Inspect the chimney
The chimney is inspected for cracks, open joints and failing parts that repellent cannot fix. Old coatings are identified because they can block the new product.
Make repairs first
Cracked crowns, open joints, spalled brick and failed flashing are repaired before any repellent goes on. New mortar needs time to cure before treatment.
Clean the masonry
The surface is washed and cleared of deposits. Treating over efflorescence or dirt traps it in place and weakens the result.
Dry the masonry
The masonry is allowed to dry thoroughly before treatment. Rain right after application can reduce how well it works.
Treat the masonry
The breathable product is applied generously so it penetrates the masonry. The crown is treated with its own crown coating, and the flashing is checked at the same time.
Check the result
A quick water test confirms the masonry is shedding water. A breathable repellent leaves no glossy coating on the brick.
What is included
What waterproofing covers
Efflorescence cleaning
White efflorescence and dirt are cleaned off before treatment so the repellent can penetrate.
Crown coating
A crown coating bridges small cracks to protect the most exposed part of the chimney.
Masonry water repellent
A vapor-permeable repellent is applied to all exposed masonry that keeps rain out and lets vapor escape.
Flashing sealing
Flashing is checked and resealed or repaired where needed because repellent cannot fix flashing.
Related service
Chimney Sealing Burlington, NJ
Sealing a chimney goes beyond the brick: it covers the crown, flashing, cap and masonry. A complete job seals crown cracks, closes flashing gaps, caps the flue and treats the masonry with a vapor-permeable repellent. Breathability is the rule for every masonry product.
In Burlington, one of the most common chimney mistakes is sealing brick with paint or a glossy sealer. Products that form a film on the surface trap vapor and make spalling worse. Ask what can be done about an existing coating before new products go on.
Local help
Chimney Waterproofing Near Me
In Burlington, the weather side of a chimney usually shows moisture damage first. Homes in Burlington and nearby towns like Florence, Beverly, Roebling and Bordentown include many brick chimneys that have soaked up decades of rain, along with some that were painted or coated with the wrong sealer, so a breathable repellent applied after repairs adds years to the masonry.
Need chimney waterproofing around Burlington? Call (609) 699-0240 for a Burlington chimney sweep who serves the towns around it too.
Chimneys in this climate
Cold winters keep fireplaces, wood stoves and oil burners working for half the year or more. The hardest thing on brick here is not the cold itself but the constant swing above and below freezing: rain and melting snow soak into the crown and joints, then freeze and push them apart, which is how cracks, loose bricks and leaks start. Nor'easters drive rain sideways into flashing and mortar that looked fine in summer. That is why chimney cleaning in Burlington is usually booked in the fall, before the first cold night.
Why call
Why fix it now
Safer fires
A chimney problem fixed early rarely spreads to the masonry, the liner or the house.
Local knowledge
Local sweeps see the same chimney types and weather wear across Burlington and nearby towns.
Straight answers
Ask your questions before you agree to anything.
Chimney Waterproofing FAQ
How often should a chimney be waterproofed?
A quality breathable repellent typically lasts several years, depending on the product and how exposed the chimney is. When rain starts darkening the brick again instead of beading, it is time to reapply. Checking it during an annual inspection keeps it on schedule.
Does waterproofing stop a chimney leak?
A water repellent can stop seepage through porous brick, but it will not fix a cracked crown or failed flashing. Cracked crowns, missing caps, failed flashing and open mortar joints let in far more water than porous brick. Finding and fixing the actual source comes first, and waterproofing is the final step.
Can I paint my chimney to waterproof it?
Paint is a poor choice for keeping water out of chimney brick. Moisture from inside and from small cracks gets trapped behind the paint film. Use a breathable water repellent instead.
Is chimney waterproofing worth it?
The right treatment helps brick and mortar last longer by keeping rain from soaking in. It works best on sound masonry after repairs, and it is not a fix for cracks, open joints or a damaged crown. In wet, freezing climates, it adds real protection.
What kind of sealer should be used on chimney brick?
Siloxane or silane water repellents designed for chimneys are the standard. They work below the surface, so the masonry can still breathe. Avoid paint, acrylic sealers and any product that leaves a film, since they trap moisture and cause spalling.
More questions? Call (609) 699-0240
Other services that may help
Chimney Leak Repair
Finding and stopping water that gets in through the crown, cap, flashing or brick, instead of patching the stain on the ceiling.
Learn moreChimney Tuckpointing
Replacing crumbling mortar between chimney bricks, so rain stops getting in through the joints.
Learn moreChimney Crown Repair
Repairing the concrete slab that caps the top of the chimney, so water stops soaking into the masonry from the top.
Learn moreChimney Cap Installation
Installing chimney caps with mesh sides so water, birds and debris stay out of the flue.
Learn more
Looking for something else?
See all chimney servicesNeed chimney waterproofing in Burlington, NJ?
Call (609) 699-0240 for a local chimney sweep in Burlington and nearby towns.
(609) 699-0240
Free to call. No forms to fill out.