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 1-20 of 48 providers for General Contracting
"Great company always fast response when we have an issue."
"These guys do excellent work, clean up after themselves, and charge fairly."
"It was a professional experience the owners and the roofing team."
Moyer Contracting Company, Home Building, Home Improvements, & Remodeling
1839 N Rodgers Ave, Alton, IL 62002
"Excellent service"
"All my orders of plants and pots have always arrived in perfect condition."
"Very professional, fast, and affordable."
"They showed up and finished, very professional and quick"
"Their workmanship was truly impressive—clean, tidy, and so well-organized."
"Arrived on time, work quality was good and completed in a timely manner."
"Their pricing is competitive and their install team are very competent."
"Super professional, amazing pricing, and great work."
"The guys were courteous, on time, and performed an excellent job."
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.