Casillas Contracting

+(302) 983-9796

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16 Simpson pl Middletown

DE 19709


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About Us

Be prepared for any weather.

We are a licensed and insured construction company , offering full-service residential / commercial roofing , gutters , siding , And interior/exterior paint all done by professionals that have integrity in their work.

Quality you can trust.

We help you in building on your past as well as your future. When you’re in charge of an apartment complex, housing units, condominiums, or something similar, you know the difficulties of multi-family roofing – and you need someone who knows how to deal with them. Casillas Contracting offers exactly that, and we’ll be there for you every step of the way to ensure quality and peace of mind.


Drip Resistant

Drip edge is metal flashing added at the roof's margins to avoid water from getting below your roofing components and away from your fascia. Water enters behind your gutters and rots your fascia board and roof decking if your roof doesn't have a drip edge.


Prevents cracks from forming on the concrete's surface. It's simple to use. Increases the concrete structure's longevity. Prevents reinforcement from rusting.


UV rays aren't as easily absorbed by efficient roofing materials, which means your roof will last longer and cost less to maintain. You can also treat the roof with a UV-resistant coating to further protect it and halt the aging process.

Our Projects

Quality Workmanship Done Right The First Time.


What They Say

    The holidays this past year were anything, but traditional. Totally felt the love though, through family and friends. Outside of that, I am truly grateful to have received a complete new roof. I had some storm damage and my insurance company only wanted to replace front side shingles. But Omar Casillas stuck it through and communicated with them throughout the entire process. They eventually granted a full roof replacement. I have not received this level of service in a long time, especially throughout the pandemic. The roof was replaced in one day. The clean up was above and beyond and the roll off was gone before I left for work the next day. They also came back and repaired and painted inside nail pops. Kudos to Omar and his team! If you are in need, you can't go wrong reaching out to him. Honestly, one of the nicest and hardest working people I've met! Casillas Contracting Read More

      "These guys were fantastic; they did an excellent job in a timely way and left my yard spotless!" We had a new roof installed on the entire house , and they meticulously cleaned my yard. I strongly suggest these guys."

        "Excellent service and workmanship from beginning to end!" They actually redid our entire roof, siding, and gutters after a local company did suc h a poor job!"

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