Get a Free Quote:

Thank you!
Your submission has been received!
Oops! Something went wrong while submitting the form.
AAA CHIMNEY CORP dba 1 HOUR CHIMNEY | YOUR SAFETY IS OUR BUSINESS!
Licensed and Insured Local Chimney Company

Chimney Waterproofing in New Jersey

Water is one of the biggest threats to your chimney.

5.0

Excellent Reviews

Based on ~500 reviews

Chimney Waterproofing

Chimney Waterproofing

From cracked bricks to rusted dampers and mold in the attic, moisture can cause thousands of dollars in damage over time. That’s why chimney waterproofing is one of the smartest preventative steps you can take.

By applying a breathable, weather-resistant sealant to the exterior, you can block out rain and snow while still allowing moisture inside the bricks to escape keeping your chimney safe, dry, and structurally sound.

Prevents water leaks and interior damage

Stops brick deterioration and spalling

Extends the life of chimney crowns, mortar, and flashing

Helps avoid costly structural repairs

Recommended for all masonry chimneys

Why Chimney Waterproofing Is Important

Why Chimney Waterproofing Is Important

Masonry is porous by nature, meaning bricks and mortar absorb water. When temperatures drop, trapped moisture freezes and expands, leading to cracks, flaking, and long-term damage. Waterproofing adds a protective barrier to prevent this cycle.

Without it, your chimney is constantly at risk, even if it's not actively leaking yet.

Blocks 99% of water penetration

Reduces freeze-thaw damage in winter

Helps prevent chimney liner and crown corrosion

Shields against heavy rain, snow, and ice

Ideal for both new and old chimneys

Photos that demonstrate some of the repairs we have completed.

How Chimney Waterproofing Works

Chimney waterproofing involves applying a specially formulated, vapor-permeable sealant to the exterior surface of the chimney. This sealant repels water from the outside while allowing moisture inside the brick to escape.

The process is quick, non-invasive, and very effective when done correctly.

Full inspection and cleaning of the chimney surface

Application of breathable, water-repelling sealant

Extra sealing around flashing, crown, and joints

Typically dries and cures within 24–48 hours

Lasts up to 10 years with proper maintenance

When to Waterproof Your Chimney

When to Waterproof Your Chimney

It’s best to waterproof a chimney before signs of damage occur, but it’s never too late. If your chimney has already been repaired or repointed, sealing it afterward adds an extra layer of protection.

Waterproofing is especially important before winter or rainy seasons begin.

After chimney cleaning or tuckpointing

If your home is in a wet or snowy climate

Before winter to prevent freeze-thaw damage

When selling a home to improve inspection results

Every 5–10 years depending on exposure and wear

Frequently Asked Questions about Chimney Waterproofing

Is waterproofing necessary if my chimney isn’t leaking?

Yes. Waterproofing is a preventative measure that protects your chimney before leaks or damage begin.

What kind of product is used for chimney waterproofing?

Professionals use breathable, siloxane- or silicone-based sealants designed for masonry surfaces.

Can I waterproof my chimney myself?

DIY sealants exist, but professional application ensures full coverage, proper prep, and longer-lasting results.

How long does chimney waterproofing last?

Typically 5–10 years depending on weather exposure and quality of the sealant.

Does waterproofing stop existing leaks?

No. Leaks must be repaired first ,waterproofing is a final protective step, not a leak fix.

Customer Testimonials

I thank God that i found Tony, Besi and their team. These guys are amazing!! First of all they know everything about their job and explain you I'm every detail.On top of that, the price they quote is literally the best price you can get, as other companies are out to get you, Tony and Besi are out to help you! The price, the professionalism, the guarantee of the job, the ease of working with them.Punctuality, professionalism, and now I can say their friendship as well. There are no other words to describe how happy I am to have found them. Going forward, all our chimney questions and jobs will definitely go to them. Thanks, guys!
Gus Koutsouris
Homeowner
These guys are pros.The people in the office pick up the phone (unlike many other contractors) and are straightforward and friendly. The crew explained my options and were very clear about everything they were doing. The boss (over the phone) cleared up any issues I had and did everything to have me as a happy customer. The chimney cap looks perfect and the upgraded water heater and boiler lines look great.Great quotes, great price, great work, friendly people.I wonder if they do other work besides chimneys?
Ricardo Morales
Homeowner
My husband and I just purchased a home and were not aware of the severity of our chimney stack, and all the built up ash throughout the years.Tony and Besi at 1 Hour Chimney - AAA Chimney Corp were extremely attentive, professional and reasonably priced compared to other competitors.Thank you Tony and Besi for your work ethic and professionalism. And insuring my family is safe.Thank you Tony and Besi for your work ethic and professionalism. And insuring my family is safe.10/10 highly recommend we will certainly continue to use them for regular maintenance.
Vanessa Houston
Homeowner
I thank God that i found Tony, Besi and their team. These guys are amazing!! First of all they know everything about their job and explain you I'm every detail.On top of that, the price they quote is literally the best price you can get, as other companies are out to get you, Tony and Besi are out to help you! The price, the professionalism, the guarantee of the job, the ease of working with them.Punctuality, professionalism, and now I can say their friendship as well. There are no other words to describe how happy I am to have found them. Going forward, all our chimney questions and jobs will definitely go to them. Thanks, guys!
Sina Yenel
Homeowner
Absolutely amazing! Andri and Bali are very dedicated to their craft and it shows. The before and after photos speak volumes but the best part was I trusted them enough to be left alone in my home and they treated it like it was their own!Thank you 1 hr chimney you guys are amazing and well priced too!
Adam Nemeth
Homeowner
Fully informed by Juliette and kept apprised of quote, options and managed expectations. Olti called today saying they finished the job and found another cracked panel which they took care of. Very reliable and honest and I would reach out again
James Austin
Homeowner

How we work:

Step#1
Contact us
You're not sure if you need chimney services, or what to expect if you do. It's normal to have a lot of questions about chimney services- after all, it's not a service that most people need on a regular basis. That's why we offer free estimates and consultations so that you can get all your questions answered before moving forward with any work. We understand that your satisfaction is our number one priority, which is why we work hard to provide quality chimney services that meet your needs and expectations. We want to make the process as easy as possible for you, from start to finish!
Step#2
Proposal
You have a problem that needs to be fixed but you're not sure how or where to start. It can be tough to know where to start when it comes to fixing a problem, especially if you're not familiar with the topic. We're here to help. We'll do a full evaluation of what needs done and how it can be accomplished. We'll give you our proposal including plans, timelines for completion as well as the guarantee that if any issues arise during this process we have an answer or solution at hand!
Step#3
Construction
It's stressful to have people in and out of your house all the time. And it's even more stressful when you're not sure what they're doing or when they're going to be done.  It's hard enough keeping your sanity with construction going on day and night, but then to have to worry about the clean-up crew coming? Ugh. We take care of everything for you so that you can relax and enjoy your new space without any stress. You don't have to lift a finger except to tell us what you want. We'll work around your schedule, do all the dirty work, and leave your home just as clean (or cleaner) than when we found it.
About Us
Since 2003 AAA Chimney Corp has repaired and lined thousands of chimneys both residential and commercial. Some notable commercial jobs were: Relining of 8 buildings in West New York (WNY Housing Authority), 2 Schools in Union City, 2 Schools in Leonia, 5 Schools in Cherry Hill, 9 Buildings in Mahhattan, Metropolitan Opera House...