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KJ Thomas MechanicalHVAC contractor in Longmont, CO

KJ Thomas Mechanical is an HVAC contractor at 6175 Trevarton Dr, Longmont, CO 80503, rated 4.9 from 233 Google reviews. Open Monday to Friday.

Longmont, CO0 paid placements in any rankingHow we rank

Call (303) 435-8141Website ↗

Key facts

Key facts about KJ Thomas Mechanical
Address6175 Trevarton Dr, Longmont, CO 80503Get directions
Phone(303) 435-8141
Websitekjtmechanical.com
HoursMonday to Friday: 8 AM – 5 PM
Google rating4.9 from 233 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Longmont and 11 towns within 25 miles: Gunbarrel, Boulder, Berthoud, Erie, Lafayette, Louisville, Firestone, Frederick, Superior, Loveland and Broomfield.

Based in Longmont, COView on map

Opening hours

Opening hours for KJ Thomas Mechanical
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 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.

Reviews

ContractorsRanked reviews

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Google

4.9from 233 Google reviews

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Questions about KJ Thomas Mechanical

What are KJ Thomas Mechanical’s hours?

KJ Thomas Mechanical is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does KJ Thomas Mechanical serve?

Serves Longmont and 11 towns within 25 miles: Gunbarrel, Boulder, Berthoud, Erie, Lafayette, Louisville, Firestone, Frederick, Superior, Loveland and Broomfield. 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.

What do Google reviews say about KJ Thomas Mechanical?

KJ Thomas Mechanical has a rating of 4.9 from 233 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact KJ Thomas Mechanical?

Call KJ Thomas Mechanical on (303) 435-8141. The business is at 6175 Trevarton Dr, Longmont, CO 80503. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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