Alton, IL

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Discover top-rated home service professionals in Alton, Illinois. Browse 80 verified contractors for roofing, HVAC, plumbing, and more.

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Alton, IL

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Top Contractors in Alton, IL

Showing 1-20 of 80 contractors

Alton Garage Door Repair

Alton Garage Door Repair

200 W 3rd St Suite 311, Alton, IL 62002

5(22 reviews)

"Great service, reasonable price, and same day installation!"

WindowsGarage DoorsHome Builder
Hours
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Quickdraw Construction Disbursing

Quickdraw Construction Disbursing

2600 State St STE D, Alton, IL 62002

5(2 reviews)
General ContractingHome Builder
Hours
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Franks Electrical Service

Franks Electrical Service

521 Lawton St, Alton, IL 62002

5(24 reviews)

"These guys do excellent work, clean up after themselves, and charge fairly."

ElectricalGeneral ContractingHandymanTree Services+1 more
Hours
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Color Concepts Painting Inc.

Color Concepts Painting Inc.

3050 Homer M Adams Pkwy, Alton, IL 62002

5(58 reviews)

"Doug and his crew do great work at a fair price."

WindowsPaintingFlooringDrywall+1 more
Hours
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LawnStarter - St. Louis Landscaping

LawnStarter - St. Louis Landscaping

4322 Brucene Dr, Alton, IL 62002

5(57 reviews)

"Always on time and does a wonderful job on my lawn."

Landscaping
Hours
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Alton Seamless Gutters & Home improvement

Alton Seamless Gutters & Home improvement

2815 Hillcrest Ave, Alton, IL 62002

5(2 reviews)
RoofingSidingGutters
Hours
McCormick Heating & Cooling

McCormick Heating & Cooling

3438 Meridocia St, Alton, IL 62002

5(3 reviews)

"Great honest service"

HVACGeneral Contracting
Hours
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Campbell’s Construction & Restoration

Campbell’s Construction & Restoration

907 E Broadway, Alton, IL 62002

5(2 reviews)

"It was a professional experience the owners and the roofing team."

RoofingGuttersKitchen RemodelBathroom Remodel+8 more
Hours
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Moore Painting Company

Moore Painting Company

4522 Alton Commerce Pkwy, Alton, IL 62002

5(3 reviews)

"Dennis is a great guy and one hell of a businessman."

Painting
Hours
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Bechtold Residential Concepts

Bechtold Residential Concepts

2710 College Ave, Alton, IL 62002

5(2 reviews)

"Very pleased with service all around."

HVACGeneral Contracting
Hours
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Ross Home Services LLC

Ross Home Services LLC

324 Lindenwood Blvd, Alton, IL 62002

5(3 reviews)

"Highly recommend!"

HVACElectricalFlooringGeneral Contracting+5 more
Hours
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Darr Roofing

Darr Roofing

Alton, IL

5(17 reviews)

"They responded much quicker than I expected and did a great job."

RoofingGuttersWater Damage Restoration
Hours
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Dr. Power Wash

Dr. Power Wash

1400 Discovery Pkwy, Alton, IL 62002

5(3 reviews)
PlumbingElectrical
Hours
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Household Electric LLC

Household Electric LLC

2930 Buena Vista Ave, Alton, IL 62002

5(1 reviews)

"Steve is excellent"

Electrical
Hours
Redstar Plumbing & Heating

Redstar Plumbing & Heating

2710 College Ave #140, Alton, IL 62002

5(17 reviews)

"Their skillful work produced amazing results."

PlumbingElectrical
Hours
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Alton Sheet Metal Corporation

Alton Sheet Metal Corporation

801 E Broadway, Alton, IL 62002

5(3 reviews)

"Excellent service"

General Contracting
Hours
Black Crow Designs

Black Crow Designs

2521 State St, Alton, IL 62002

5(12 reviews)

"Always great projects."

PaintingHome Builder
Hours
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Tech River Consulting, LLC

Tech River Consulting, LLC

2410 State St, Alton, IL 62002

5(12 reviews)

"Great company always fast response when we have an issue."

HVACGeneral ContractingHome Builder
Hours
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Radcliff Brick Repair

Radcliff Brick Repair

Alton, IL

5(1 reviews)
Masonry
Hours
WindowsSidingKitchen RemodelBathroom Remodel+5 more
Hours
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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.

Frequently Asked Questions

Common questions about finding contractors in Alton

Prices in Alton depend on the trade, the size and complexity of the job, and the materials you choose. Small repairs often start in the low hundreds of dollars, while full replacements such as a roof, HVAC system, or kitchen can run from several thousand dollars upward. Request at least three written estimates for the same scope so you can compare local pricing fairly.

Start with the listings on this page, then confirm the licence directly with the licensing board that covers Illinois. Requirements vary by trade: some states license general contractors, while others license only electrical, plumbing, and HVAC work. Ask for the licence number and verify it yourself before signing anything.

Most listings in Alton are aggregated from public business data, including the Google Business Profile rating and review count shown on each page, and are not individually inspected by us. A listing marked as claimed simply means the owner has confirmed control of the business record; it is not a licence or insurance check. Always verify licensing, insurance, and references before you hire.

Costs in Illinois depend heavily on the trade and the project. Labour rates vary by region, licensed trades such as electrical and plumbing usually cost more per hour than general labour, and emergency or after-hours work carries a premium. Statewide averages are only a starting point; get itemized quotes from local contractors for your exact scope.

Permit rules are set by the local authority that covers Alton. Structural work, additions, and most electrical, plumbing, HVAC, and roofing replacements require a permit, while some cosmetic work does not. Ask who is pulling the permit and confirm it is issued in the correct name before work starts, because unpermitted work can complicate resale and insurance.

A deposit of roughly 10-30% of the contract price to cover materials is common in Alton, with the balance tied to milestones in a written contract. Be cautious of anyone demanding full payment up front, large cash-only payments, or payment before the work is scheduled. A written payment schedule protects both sides.

Compare quotes on the same written scope of work, not on the bottom line alone. Check that each quote lists materials and brands, labour, permits, cleanup, and exclusions, and ask how change orders are priced. A bid that is far below the others usually means something has been left out.

A contractor contract in Illinois should state the full scope, materials, total price and payment schedule, estimated start and completion dates, the licence number, how changes will be approved and priced, the warranty, and who handles permits and cleanup. Read it before signing and keep a copy.

Timelines in Alton vary widely by trade and scope, from a same-day repair to several months for a major remodel. Weather, permit queues, and material lead times all affect the schedule. Ask each contractor for a written timeline and confirm how they handle weather or inspection delays.

Read the Google review excerpts shown on each listing for patterns rather than judging only by the star average. Also check the state or provincial licensing board for complaints, ask the contractor for recent local references, and confirm they carry insurance. A single bad review matters less than a consistent theme.

Pricing in Alton reflects local labour rates, cost of living, demand, and how far crews have to travel. Dense metro areas and high-cost regions usually run above the state average, while smaller markets can be below it. The only accurate comparison is like-for-like quotes from contractors who work in Alton.

Document everything in writing first, including photos, dates, and the contract. Ask the contractor to fix the issue under the warranty, and if they refuse, file a complaint with the Illinois licensing board or consumer-protection office. You can also contact us so we can review the listing associated with that business.