Knox WaterProofing

serving our clients for over 25 years

More than two decades of experience in the field. It will be very much evident in the quality of work that we do.

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about us

leading roofing contractors in the Commercial & Industrial sector

When it comes to commercial roofing we will definitely clinch the top spot. To have a clear picture take a look at the commercial projects that we have completed and delivered.


Water Proofing

We apply the latest technologies in the waterproofing services that make us the best in the sector.

Liquid Roofing

We have a separate team that deals with the liquid roofing processes.

Damp proofing

Our damp roofing services are definitely the best in the business and will make sure that provide the best.

Metal Roofing

Metal roofing is one of the most preferred because of the durability of the material.

vault water proofing

Vault waterproofing is one of the latest techniques that gives great results in waterproofing.

Green Roofs

The green roofs are eco-friendly roofs popular among people just like Eco Home Services Snohomish


Let us see what our happy clients have to say about us

They are definitely the best when it comes to roofing. They will make sure that they give their best in everything.

Margaret K. Scheer

They are absolutely flawless in their work. They are the best in what they do.

Samuel S. Phan

New Roof Installations, Repairs and Maintenance

Choose Knox waterproofing to get the best and wholesome services in waterproofing.

why choose us

Here are some of the reasons why we are the best in the business and why you can choose us.

  • 24/7 Hours Emergency Services
  • Professional, Licensed Service
  • affordable prices
  • no hidden costs
  • highly reliable, affordable and durable materials.

From Our Blog

Understand DIY Steps on Waterproofing Your Roof

Water proofing

A water seal is a penetrative waterproof substance that is clear and dull. It is a water repellent liquid that contains silicones used for keeping the entering of water through porous surfaces. For instance, hinders over some time will lose their protection from water penetration. A water seal will displace this opposition. Water sealant is ideal for porous surfaces and building materials, for instance, square, stone, bond rendering, and concrete.

A water seal additionally has the additional favorable position of allowing a divider to breathe in, empowering soddenness into dividers to evaporate. It will in like manner keep dividers dry and clean and help abstain from blooming, ice mischief and general erosion by water.

A water seal should be connected when the atmosphere has been dry for something like 3-4 days, and there is no storm or ice due upon the entry of application. It is not hard to apply with a fragile brush, working from the base of the divider upwards. On exceptional our amazingly porous surfaces, two coats should be connected; the second attached when the main coat is dried. Another coat can be incorporated after 30 days.

Liquid Damp Proof Membrane

Liquid Damp Proof Membrane

A liquid sticky proof film is a rubberized bitumen based emulsion that shapes a versatile waterproof layer on sturdy dividers and floors when it is dry. The film is sandwiched between a concrete floor structure and the overlaying screed and gives an adaptable limit to moist through floors and dividers. It can in like manner be used with brickwork or before putting a divider.

A liquid moist proof film should not be used on floors or dividers where water is accessible under strain, for instance in holding dividers, wet rooms, and storm cellars.

The layer should be connected with a sweeper or brush to a story and given two coats. For internal dividers, three layers of the film should be compared before putting. The layer should not be connected if the temperature will plunge under 4 degrees celsius or in the unlikely event that it is down-pouring. Protective dress and goggles should moreover be used while applying this sodden proofing.


Guarded Bituminous Paint

This dim bitumen based paint is used for metal and concrete and gives a guarded covering to iron, steel, metal, castings, and concrete. This coverage has high protection from water penetration, oxidation, and persevering. The application can be made by brush or give resulting in reducing white soul. Protective dress and goggles should be used while applying. The paint can be reapplied as and when it atmospheres and requires another coat.

Inside Damp Sealing

For saturated on inside dividers, a water-based covering can be used to keep stains from sticky patches showing upcoming about painting. It seals the recoloring achieved by officially moist regions on inside roofs and dividers. It can without quite a bit of a stretch be connected by a paint roller or brush.


Waterproofing for Roofs

There are many waterproofing substances for roofs that can be used. A bitumen set up together solution can
be used as for dark top, concrete, slate, wrinkled iron, and lead or zinc sheeting to make a fruitful obstruction to water penetration.

Two coats should be connected by brush or over large regions by a sweeper. Gloves should be used while applying.


Acrylic is an acrylic pitch based waterproof covering for roofs and waterways that is strong and extraordinary. This can be connected in a wet atmosphere and gives a minute solution to spills. This kind of waterproofing is ideal for snappy and disconnected fixes or as an absolute covering on a roof. It will, in general, be connected by brush and used in split and broke domains that are prone to spills.


Versatile Sealant for Roofs

This sealant is a bitumen-based mastic sealant for filling and fixing breaks and joints in gutting and roofs to turn away spills. It will, in general, be connected with a sharp edge or trowel and should be waterproofed when dry with a comprehensively helpful roof waterproofer.

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