Cornerstone Construction and Co.

5.0(23 reviews on Google)

Deck builder in Waterloo, IL · Google rating checked October 17, 2026

Call (618) 340-8334Visit websiteDirections
Example of a deck projectExample photo
Illustration of the kind of work this company does, not a photo of one of its projects. Owner? Add your real photos.

About Cornerstone Construction and Co.

Cornerstone Construction and Co. is a family-owned company in Waterloo offering interior remodeling, flooring, tile, carpentry, and kitchen and bathroom renovation. Exterior work includes concrete, patios, decks, landscaping, retaining walls, garden beds and paver installation. The company states it is fully insured and treats every project as its own. Rated 5.0 from 23 Google reviews, all five stars.

What reviewers mention: attention to detail (5), quality of work (3), backsplash installation (2), porch construction (2), basement remodel (2), deck removal (2), polite staff (2), room addition (2), dependable team (2), craftsmanship (2)

What Cornerstone Construction and Co. offers

  • Builds new decks

    Yes

  • Says it is insured

    Yes

No information yet on wood decks, composite decks, pVC decks, railings, pergolas and covers, screened and three-season porches, deck repair, design and 3D plans, handles permits, free estimates, financing, workmanship warranty. The website did not say; call and ask.

Contact

Hours

Monday
7AM-5PM
Tuesday
7AM-5PM
Wednesday
7AM-5PM
Thursday
7AM-5PM
Friday
7AM-5PM
Saturday
7AM-5PM
Sunday
Closed

Listing compiled from public sources on October 17, 2026. Rating and review count from Google on that date. Report a correction or request removal. Back to deck builders in Millstadt.