Review Our Business
Schedule an appointment TODAY! 970.872.2333

Professional And Reliable Waterproofing

The worst thing you can do to your chimney is leave it defenseless against water damage. Water is the leading cause of chimney problems and can deteriorate and damage just about every area of the system. If you think about it, your chimney is out in the midst of it all, storm after storm and winter after winter. Without proper defenses and regular maintenance, a chimney simply can’t be expected to last.

The Results Of Water Damage

Water can cause thousands of dollars’ worth of damage, and may even destroy a chimney or fireplace to the point where restoration is not possible. The damage is not just aesthetic, but structural, and can compromise the safety and efficiency of your entire chimney system. Some of the most common results of water damage are:

  • Spalling, Cracking and Deterioration of Masonry – When water enters the masonry of a chimney or fireplace, it goes through what is known as a “freeze/thaw cycle”, which essentially involves the swelling and constricting of water molecules. As these water molecules shrink and expand, they break apart the brick and mortar from the inside out. The result is cracking and crumbling bricks and joints and a structurally unsound system.
  • Flue Liner Decay – Flue liners are typically made of clay tiles or metal, both of which can be seriously damaged by water exposure. When exposed to water, the clay tiles can crack and crumble, leaving gaps for the heat and by-products of combustion to escape into nearby walls. When a metal flue liner is exposed to water, the water can cause rusting and corrosion and can actually eat holes into the liner itself. As with the gaps in a clay flue liner, holes in a metal flue liner are incredibly dangerous and can allow dangerous gases and heat to enter the home. Unfortunately, this is how many house fires start.

Regular inspections and cleanings can alert you to a water problem and help ensure that all of your chimney’s built-in defenses were properly installed and are in good working condition. To have your chimney’s defenses evaluated for material choice, proper installation, and overall condition, call Bulldog Chimney Sweeps, today!

What Else Can I Do?

In addition to scheduling regular cleanings and inspections (which can help alert you of any repairs or replacements that may be necessary), there are some precautionary measures you can take to equip your chimney system against the elements. At Bulldog Chimney Sweeps, we specialize in waterproofing chimneys and can help you determine which method or measures are the most appropriate for your system.

Typically when we waterproof a chimney, we first check for any cracks or areas in need of repair. If repairs are needed but not made, the waterproofing will not be as effective and the system will still be prone to leaks.

Once the appropriate repairs are made, there are several options for waterproofing the system:

  1. We can apply a vapor-permeable water repellent to the masonry of the chimney system. These products work by allowing small vapor molecules to still safely exit the chimney while keeping larger water molecules from entering.
  2. We can apply a water-repelling coat to the crown of the chimney. These products are designed to provide the crown with a durable and protective “waterproof membrane”.
  3. We can apply a waterproofing product to the flashing of the system, giving it added protection so that it can more effectively do its job.

There are a variety of quality and reliable products available to us, and we know which ones will stand the test of time. To discuss your waterproofing options or schedule an appointment with a Bulldog Chimney Sweep, call us at 970-872-2333 or click here!


Keeping flashing in good working order is one of the best ways to guard against chimney leaks. Let us inspect yours and discuss the best course of action to keep you safe and dry.


Golden Flue Cecure Chimney Systems Regency Fireplace Products Heatfab Majestic Products Vermont Castings

Certifications & Associations

CSIA National Fire Institute Certified Hearth, patio, And Barbecue Association Member of the National Chimney Sweep Guild

Follow Us