Let’s Build Together

Bringing superior service, care, and commitment to Greater Pittsburgh’s residential and commercial contracting and roofing needs.


Quality you can trust.

Serving Allegheny, Butler, Beaver, Washington, and Westmoreland Counties since 1999, Zillweger Contracting Inc. specializes in residential and commercial roofing, siding, remodeling, renovations, additions,‎ and more.

Find out why the Greater Pittsburgh region has trusted us with their construction and renovation needs for over 20 years. Contact us now for a free estimate.

Residential Services

Additions, roofing, siding, remodels, renovations and more, Zillweger can do it all.

Roofing Installation & Repair

From new roofing to storm damage and leak repair, we specialize in replacing old roofs and extending the life of your current roof.

Remodeling & Renovations

Kitchens, bathrooms, basements, and more, we pride ourselves on clear communication and collaboration to make your vision a reality.


Considering a new great room, an extended garage, or an additional bedroom? We bring decades of experience to your home addition.

203K Contractor

We are a fully qualified, licensed and insured 203K Contractor with dozens of 203K home improvement projects under our belt.

Windows & Siding

Nothing improves the value, curb appeal, and energy efficiency of your home like new windows and siding. 


Protect your foundation with a highly effective French drain, prep your new construction project with proper grading, and repair or replace your sewer and water lines with experienced, quality excavation services from us.

Decks, Porches, & Patios

Your home will be the favorite destination for family barbeques and pool parties with a beautiful new deck, porch or patio from Zillweger Contracting.

Soffit & Fascia

Age and storm damage take their toll on your home’s soffits & fascia which lead to additional repairs down the road. Repair or replace yours with us.

Gutters & Downspouts

We install high-quality gutters and downspouts in a variety of materials, manufactured for both durability and aesthetic appearance.

Equipter roofer buggy
James Hardie siding
Mastic Home Exteriors siding

See what some of our clients have to say....

check out some of our reviews below

Quality work with excellent craftsmanship

"We hired Zillweger Contracting to replace the roof on our house and garage and install new seamless gutters. They were professional from beginning to end. The crew was punctual and started right in on the project. The result was quality work with excellent craftsmanship. I would definitely hire them again!"

  • Marie P.

    Moon Township

I think my deck may have been cleaner than they found it!

"My husband and I were very impressed with Ryan's knowledge and the estimate he provided was very reasonable. The crew was efficient, professional, and easy to deal with. They did an excellent job cleaning up the site after each day. When the roof was completed, I think my deck may have been cleaner than they found it! I highly recommend Zillweger Contracting.".

  • Joanne G.

    Butler, PA

We're certain that we made the best choice

"We received quotes for a new roof from several companies and hired Zillweger Construction. All the crew were extremely polite and accommodating and any concerns were immediately addressed. The work was well done and came with a 5-year guarantee. We're certain that we made the best choice for professional installation and a customer-oriented experience."
  • Mike & Amy M.

    Murrysville, PA

Service Areas

Pittsburgh, Butler, Wexford, Glenshaw, Allison Park, Mars, Bairdford, Oakmont, Gibsonia

Office Hours

8:00 AM - 05:00 PM
Monday - Friday

Phone answers 24/7


Zillweger Contracting, Inc
100 Zillweger Ln
Butler, Pennsylvania 16002

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