Onyx Mechanical LLCHVAC contractor in Woodstock, IL
Onyx Mechanical LLC is an HVAC contractor at 10820 Bull Valley Rd, Woodstock, IL 60098.
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Key facts
| Address | 10820 Bull Valley Rd, Woodstock, IL 60098Get directions |
|---|---|
| Phone | (224) 230-7695 |
Trades
Each trade shows the evidence we matched it on.
- HVACmain tradeGoogle main category
Service area
Serves Woodstock and 11 towns within 25 miles: Crystal Lake, McHenry, Johnsburg, Lake in the Hills, Huntley, Lakemoor, Marengo, Cary, Island Lake, Algonquin and Spring Grove.
Typical heating and cooling prices
| Job | Low | Typical | High |
|---|---|---|---|
| AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range | $3,887 | $5,978 | $8,073 |
| Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range | $2,823 | $4,814 | $6,896 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
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