Andesite Construction, LLC is one of the oldest excavation companies located in Big Sky, Montana. Owned and operated by J.C. Knaub for over 20 years,  Andesite is the ideal firm to take your job from start to finish.  We have the right equipment and an experienced staff to assist you in all aspects of your building needs. Andesite Construction does on-site estimates and  offers competitive pricing. We guarantee our work, and after the job is done, we're still around for the long haul if more work arises.  
    Our services include road building, thinning, geo-tech and site preparation, slash removal, foundation excavation, backfill, slab prep and drain tile installation.  We do all types of sewer systems, utilities, propane tank installations, water lines, and culverts.  If you're in need of landscaping prep, final grade, rock retaining walls, mounds and water features, we can help.
Additionally, Andesite Construction operates a full line of equipment for all your winter snow removal needs.

Andesite Construction is licensed and insured.  References happily  furnished upon rquest.