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Don-Martin Heating, Cooling & Geothermal Inc.HVAC contractor in Janesville, WI

Don-Martin Heating, Cooling & Geothermal Inc. is an HVAC contractor at 4101 Commercial Dr #180, Janesville, WI 53545, ranked #18 of 83 HVAC contractors in Janesville and rated 5.0 from 26 Google reviews. Open Monday to Friday.

Janesville, WIUpdated 0 paid placements in any rankingHow we rank

Call (608) 758-9882Website ↗

Key facts

Key facts about Don-Martin Heating, Cooling & Geothermal Inc.
Address4101 Commercial Dr #180, Janesville, WI 53545Get directions
Phone(608) 758-9882
Websitedon-martinhvac.com
HoursMonday to Friday: 8:30 AM – 3 PM
Google rating5.0 from 26 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Janesville and 11 towns within 25 miles: Milton, Edgerton, Evansville, Beloit, Whitewater, Fort Atkinson, Stoughton, Delavan, Jefferson, Oregon and McFarland.

Based in Janesville, WIView on map

Opening hours

Opening hours for Don-Martin Heating, Cooling & Geothermal Inc.
DayHours
Monday8:30 AM – 3 PM
Tuesday8:30 AM – 3 PM
Wednesday8:30 AM – 3 PM
Thursday8:30 AM – 3 PM
Friday8:30 AM – 3 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.

Compare nearby HVAC contractors

Don-Martin Heating, Cooling & Geothermal Inc. compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Don-Martin Heating, Cooling & Geothermal Inc. (this business)—555.0 (26)—NoNo
Janesville Heating & Air Conditioning Inc.#16553.2 (25)—YesYes2.2 mi
Armstrong Heating & Cooling#17554.8 (53)—YesYes15.0 mi
R&W Heating & Cooling Inc#19555.0 (52)—NoNo4.8 mi

See all 83 ranked HVAC contractors in Janesville

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 26 Google reviews

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Questions about Don-Martin Heating, Cooling & Geothermal Inc.

How is Don-Martin Heating, Cooling & Geothermal Inc. ranked in Janesville?

Don-Martin Heating, Cooling & Geothermal Inc. is ranked #18 of 83 HVAC contractors in Janesville by CR Score, with 55 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Don-Martin Heating, Cooling & Geothermal Inc.’s hours?

Don-Martin Heating, Cooling & Geothermal Inc. is open Monday to Friday. Its listed hours are Monday to Friday, 8:30 AM – 3 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Don-Martin Heating, Cooling & Geothermal Inc. serve?

Serves Janesville and 11 towns within 25 miles: Milton, Edgerton, Evansville, Beloit, Whitewater, Fort Atkinson, Stoughton, Delavan, Jefferson, Oregon and McFarland. 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 Don-Martin Heating, Cooling & Geothermal Inc.?

Don-Martin Heating, Cooling & Geothermal Inc. has a rating of 5.0 from 26 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 Don-Martin Heating, Cooling & Geothermal Inc.?

Call Don-Martin Heating, Cooling & Geothermal Inc. on (608) 758-9882. The business is at 4101 Commercial Dr #180, Janesville, WI 53545. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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