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Keystone Construction CompanyGeneral contractor in Chesterfield, MO

Keystone Construction Company is a general contractor at 673 Spirit Valley W Dr, Chesterfield, MO 63005. Open Monday to Friday.

Chesterfield, MO0 paid placements in any rankingHow we rank

Call (636) 519-7900Website ↗

Key facts

Key facts about Keystone Construction Company
Address673 Spirit Valley W Dr, Chesterfield, MO 63005Get directions
Phone(636) 519-7900
Websitekeystone-stl.com
HoursMonday to Friday: 7 AM – 6 PM

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradeGoogle main category

Service area

Serves Chesterfield and 11 towns within 25 miles: Weldon Spring, Wildwood, Ellisville, Dardenne Prairie, Ballwin, Saint Peters, Manchester, O'Fallon, Lake Saint Louis, Eureka and Town and Country.

Based in Chesterfield, MOView on map

Opening hours

Opening hours for Keystone Construction Company
DayHours
Monday7 AM – 6 PM
Tuesday7 AM – 6 PM
Wednesday7 AM – 6 PM
Thursday7 AM – 6 PM
Friday7 AM – 6 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical general contracting prices

Typical general contracting prices
JobLowTypicalHigh
Kitchen remodelPer project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 0.98 West North Central factor (2025 Cost vs. Value Report)$14,300$26,440$40,770
Bathroom remodelPer bathroom: typical range of customer-reported remodels. US national range × 1.03 West North Central factor (2025 Cost vs. Value Report)$6,840$12,500$18,160

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 Keystone Construction Company

What are Keystone Construction Company’s hours?

Keystone Construction Company is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 6 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Keystone Construction Company serve?

Serves Chesterfield and 11 towns within 25 miles: Weldon Spring, Wildwood, Ellisville, Dardenne Prairie, Ballwin, Saint Peters, Manchester, O'Fallon, Lake Saint Louis, Eureka and Town and Country. The list is based on the business's location and the usual service radius for general contracting. Confirm your address is covered when you call.

How do I contact Keystone Construction Company?

Call Keystone Construction Company on (636) 519-7900. The business is at 673 Spirit Valley W Dr, Chesterfield, MO 63005. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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