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Commercial & Residential


What Customers say about us

Can't say enough good things about High Grade! Carlos and his crew were courteous, prompt and ridiculously hard working. Kathleen kept us up to date and informed of the progress, and the owner, Don, gave us fair pricing and worked with us on some last minute details without issue. Already received a bunch of compliments on the new look of the house - should have done this years ago (but glad we'll only have to do this once!).

- Google Reviewer

I agree with the review from 5/9/2017. We had wonderful experience with High Grade. Kathleen was very helpful and answered many of our questions. The workers were great and neat. I have no complaints whatsoever. I love the way our home looks.

- Angie's List Reviewer

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Residential shingled roofs, standing seam, metal roofs, all types of flat and tapered roofs and all Commercial roofing.

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We install all types of vinyl siding; clapboard, dutchlap, shakes, scallops, PVC and other decorative options.

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Window Replacement

We supply and install all types of vinyl replacement windows and some new construction bays, bows, casement and double hungs.

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Located in Randolph, NJ,  Donald G. Smith created High Grade Contracting in 1986 and now has over 34+ years of experience and highly satisfied clients in commercial and residential roofing, siding and window replacement. As a New Jersey Home Improvement licensed contractor, our goal is to provide reliable and trusted services without breaking the bank and an end result that you can be proud of.