IMOC Building Supply

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Your Source for Premium Window Caulking

At IMOC Building Supply, based in Sheridan, Montana, we provide the door, roofing, and window caulking you need to keep your home safe from water damage. Check out some of our most reliable and biggest sellers below.

Through The Roof!

When your roof absolutely needs to be watertight (and really, when does it not?), use Through the Roof! This unique roofing caulk can be applied in the rain, sticking to wet surfaces. With this incredible product, you can fix the leak while it's leaking. Through the Roof! does not freeze, and will stick to almost any roofing surface, such as:

• Metal • Plastic • Asphalt • Wood • Concrete

Conceal Caulk

Conceal is the first caulk designed specifically for wood. It's lightly textured to simulate the natural roughness of wood, and comes in seven colors designed to complement the most popular wood stain options. The caulking disappears into the woodwork while protecting your home from the elements. Stop staring at those funny-looking caulk lines and get some Conceal.

Big Stretch

Keep windows and doors safe from a shifting home with Big Stretch, a 100% acrylic latex caulk. Most latex caulks will harden and crack, but Big Stretch will stick, twist, bend, compress, and stretch to handle whatever movement your home can dish out.

Glass Shower


Whether your surface is wet or dry, indoor or out, Lexel is the caulk that can handle your most difficult projects. This tough product can handle up to 400% joint movement, is scrubbable, and scan stick to just about anything. Lexel is 19 times clearer than silicone, so you can be sure that it won't yellow or cloud up over time. It's perfect for any seal in home, including:

  • Tub & Shower Stalls
  • Sinks
  • Counter Tops
  • Window Frames
  • Door Frames

Log Cabin Materials

Protect your beautiful log home with innovative solutions from Sashco. Log cabins present unique challenges, from insect infestations to the constant expansion and contraction of the logs themselves. Sashco has designed products and solutions that will address each step of the complicated process of building and maintaining log homes.

Log House