Water causes over 1 billion dollars in damage annually in the form of staining, loss of insulation value, freeze-thaw damage, deterioration, and, ultimately, structural failure.


Protect Your Investment

Water causes over 1 billion dollars in damage annually in the form of staining, loss of insulation value, freeze-thaw damage, deterioration, and ultimately, structural failure. All new and existing masonry chimneys are susceptible to water damage and, even if repaired, chimneys will continue to deteriorate if they are not protected. Thankfully, water damage can be prevented before it starts!

Use On All Masonry Surfaces

Not just for chimneys, ChimneySaver® water repellent is the ideal choice for protecting all residential and commercial above-grade masonry. ChimneySaver is the best solution for any exterior masonry applications, including patios, walkways, pool decks, and wall systems. 

Superior Technology

ChimneySaver® comes with a 10 year warranty and is the first water repellent specifically developed to protect chimneys from the severe weather conditions to which they are exposed. 

  • ChimneySaver is a WATER REPELLENT – not a water sealer. The difference could save you hundreds, or even thousands of dollars in repairs because sealers can actually damage masonry. 

  • Unlike waterproofing sealers that remain on the surface and trap water vapors, ChimneySaver penetrates deep enough to protect masonry from destructive water penetration. 

  • ChimneySaver contains patented siloxanes small enough to penetrate most masonry pores up to ¼ inch or more. These special siloxanes form strong bonds with the silica in masonry and concrete. 

  • Because of this bonding process, one application of ChimneySaver provides up to ten times the water repellent protection of typical sealers.

100% Breathable

Moisture from a variety of sources is always present in masonry and concrete. Sealers and silicone coatings form a water resistant surface film which traps water vapors. If these vapors cannot escape, they will contribute to spalling, scaling, deterioration, and freeze-thaw damage. 


ChimneySaver is 100% vapor permeable – a non film-forming water repellent that penetrates and lines masonry pores. ChimneySaver offers the best protection because it releases water vapors and effectively reduces water absorption, leaving your exterior surfaces protected.

Superior Value

The superior value and added benefits of protecting your masonry with ChimneySaver® are obvious when comparisons are made with popular retail brands of water sealers.

Long-Term Protection

ChimneySaver is an investment in long-term protection that will help prevent expensive reconstruction. However, no water repellent is a substitute for good construction and workmanship. For true water damage prevention you will want to:

  • make necessary repairs to structural cracks, damaged crowns, flashings, deteriorated bricks, and mortar joints. 

  • protect porous masonry from further water penetration by applying ChimneySaver water repellent. 

Protection is especially needed when a new chimney liner has been installed. If repairs and preventive measures are not taken, the old chimney will continue to deteriorate around the new liner.


Addressing Water Concerns

We at On Top Service will do everything to the best of our ability, based upon our knowledge and experience, to help you resolve any existing water problems. However, we would like to stress that we cannot guarantee that any repairs we do will stop the water problem. With your knowledge and agreement, we always attempt to resolve water problems using a process of elimination starting with the smallest and least expensive repair and gradually eliminate possible entry points along the way. 


Call Us Today: (972) 877-2176



Monday – Friday: 7am – 5pm

Saturday: By appointment

Sunday: Closed



Corinth, Lewisville, Highland Village, Flower Mound, Coppell, Denton & all surrounding areas.

Copyright © 2020 On Top Service - All Rights Reserved. Web design by Valynt Digital, LLC