Oncore Solar STLSolar installer in East Saint Louis, IL

Oncore Solar STL is a solar installer in East Saint Louis, IL. Open Monday to Saturday.

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Key facts

Key facts about Oncore Solar STL
Phone	(618) 570-1211
Website	davidbeckley.oncoresolar.com
Hours	Monday to Saturday: 9 AM – 6 PM

Trades

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Solarmain tradeGoogle main category

Service area

Serves East Saint Louis and 11 towns within 40 miles: Centreville, Cahokia, Granite City, Fairview Heights, Collinsville, Swansea, Pontoon Beach, Belleville, O'Fallon, Maryville and Glen Carbon.

Based in East Saint Louis, ILView on map

Opening hours

Opening hours for Oncore Solar STL
Day	Hours
Monday	9 AM – 6 PM
Tuesday	9 AM – 6 PM
Wednesday	9 AM – 6 PM
Thursday	9 AM – 6 PM
Friday	9 AM – 6 PM
Saturday	9 AM – 6 PM
Sunday	Closed

Open evenings — no
Open Saturdays
Open Sundays — no

Typical solar installation prices

Typical solar installation prices
Job	Low	Typical	High
Solar panel installationPer system: about 12 kW at about $2.60 per watt, before incentives. US national range × 0.95 East North Central factor (2025 Cost vs. Value Report)	$26,020	$29,430	$32,010

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

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Questions about Oncore Solar STL

What are Oncore Solar STL’s hours?

Oncore Solar STL is open Monday to Saturday. Its listed hours are Monday to Saturday, 9 AM – 6 PM. On Saturdays it is open 9 AM to 6 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Oncore Solar STL serve?

Serves East Saint Louis and 11 towns within 40 miles: Centreville, Cahokia, Granite City, Fairview Heights, Collinsville, Swansea, Pontoon Beach, Belleville, O'Fallon, Maryville and Glen Carbon. The list is based on the business's location and the usual service radius for solar installation. Confirm your address is covered when you call.

How do I contact Oncore Solar STL?

Call Oncore Solar STL on (618) 570-1211. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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