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Hartley Design GroupHVAC contractor in Milliken, CO

Hartley Design Group is an HVAC contractor at 1130 S Marjorie Ave, Milliken, CO 80543. Open Monday to Friday.

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Call (970) 587-8937Website ↗

Key facts

Key facts about Hartley Design Group
Address1130 S Marjorie Ave, Milliken, CO 80543Get directions
Phone(970) 587-8937
Websitejsdhvacdesigns.com
HoursMonday to Friday: 9 AM – 4 PM

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Milliken and 11 towns within 25 miles: Johnstown, Evans, Greeley, Windsor, Berthoud, Loveland, Firestone, Frederick, Longmont, Fort Lupton and Erie.

Based in Milliken, COView on map

Opening hours

Opening hours for Hartley Design Group
DayHours
Monday9 AM – 4 PM
Tuesday9 AM – 4 PM
Wednesday9 AM – 4 PM
Thursday9 AM – 4 PM
Friday9 AM – 4 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
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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Questions about Hartley Design Group

What are Hartley Design Group’s hours?

Hartley Design Group is open Monday to Friday. Its listed hours are Monday to Friday, 9 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Hartley Design Group serve?

Serves Milliken and 11 towns within 25 miles: Johnstown, Evans, Greeley, Windsor, Berthoud, Loveland, Firestone, Frederick, Longmont, Fort Lupton and Erie. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

How do I contact Hartley Design Group?

Call Hartley Design Group on (970) 587-8937. The business is at 1130 S Marjorie Ave, Milliken, CO 80543. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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