General Contractors in Alton, IL
Browse 48 verified general contractors in Alton, Illinois. Compare ratings, read reviews, and get free estimates today.
48
Providers
Alton
IL
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Showing 41-48 of 48 providers for General Contracting
Barnhart Construction LLC
1328 Central Ave, Alton, IL 62002
Community Rebuilding & Improvement PLLC
224 Front St, Alton, IL 62002
radcliff masonry
222 Main St, Alton, IL 62002
Top Rated Contractors 2026
Alton, IL
Every contractor shown for Alton, Illinois is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in Alton.
About General Contractors
Find qualified general contractors in Alton. All listed providers are verified and rated by customers.