11 Emergency HVAC Contractors in Oconomowoc, WI

4.9 avg rating
2,453 total reviews8 offer 24/7 service

Top-Rated Emergency HVAC Contractors in Oconomowoc

#1

Pat's Heating & Air Conditioning

5.0(1,859 reviews)
24/7 Highly Rated

All five detailed reviews award 5 stars, with technicians Sean, Jay, Paul M, and Luke each singled out by name for professional communication and quality work.…

1833 Executive Dr, Oconomowoc, WI 53066
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#2

Kelly James Well Pump & Plumbing, Inc.

5.0(136 reviews)
24/7 Highly Rated

136 reviewers awarded a perfect 5-star rating, with multiple customers specifically naming Scott and praising his responsiveness during emergencies. Common…

N72W38196 Lang Rd, Oconomowoc, WI 53066
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#3

Alpha Heating & Cooling LLC

4.9(145 reviews)
24/7 Highly Rated

Four of four reviewers mention same-day or late-night emergency response, with three specifically calling out technicians Russ or Adam by name for arriving on…

S15W33816 Wolf Rd # G, Oconomowoc, WI 53066
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All Emergency HVAC Contractors (11 total)

Lake Country Heating & Cooling

4.8(136)
Highly Rated

Seven of eight reviewers award 5 stars, with specific praise for technicians Andrew and Cole. Negative…

N6333 County Rd F, Oconomowoc, WI 53066
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Aasen Heating & Cooling

4.9(63)

63 reviewers collectively award 4.9 stars, with multiple customers specifically naming Todd or Matt for their…

111 S Main St, Oconomowoc, WI 53066
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Brisc plumbing

5.0(43)
24/7

All 43 reviews award 5 stars, with multiple reviewers specifically praising same-day water heater…

148 E Wisconsin Ave, Oconomowoc, WI 53066
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Sterling Mainz & Sons Plumbing

4.4(42)

4 of 6 detailed reviews mention fast response or same-day service. Positive reviewers cite…

114 S Main St, Oconomowoc, WI 53066
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Lewis Heating and Cooling

5.0(14)
24/7

Eight verified reviews unanimously award 5 stars, with 4 reviewers specifically mentioning same-day service…

N Southwood Dr, Oconomowoc, WI 53066
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Great Lakes Heating & Cooling, LLC

5.0(6)
24/7

All six reviewers award five stars, with three specifically praising same-day or after-hours response during…

N7837 Division St, Oconomowoc, WI 53066
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David Anthony's Heating and Cooling

5.0(6)
24/7

All five client reviews award 5 stars, with technicians named in three of those reviews. Reviewers emphasize…

W340S2403 County Rd C, Oconomowoc, WI 53066
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Hanson Heating & Services

5.0(3)
24/7

Three reviews consistently award five stars, with customers citing same-day emergency response, professional…

N67W33880 Loghouse Ct, Oconomowoc, WI 53066
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Emergency HVAC Costs in Oconomowoc

After-hours, weekend, and holiday HVAC service pricing in Oconomowoc. Rates are typically 1.5-2x standard.

ServiceLowAverageHigh
After-hours service call (weekday night)
Base fee before labor
$165$220$330
Weekend service call
$193$248$358
Holiday / major holiday call
$248$330$495
Emergency labor (hourly)
1.5-2x standard hourly rate
$176$226$275
Emergency repair total (typical)
Repair + after-hours surcharge
$330$770$1,320
Emergency repair (major)
Compressor, heat exchanger failures
$1,320$2,420$3,850

Prices reflect continental metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

Emergency HVAC in Oconomowoc, WI: What to Expect

Oconomowoc sits within the Milwaukee metro area, where Great Lakes continental weather creates a heating-dominated climate. Winter lows average 14 F from November through March, while summer cooling demand spans just eight to ten weeks. Eleven contractors serve the area with an average rating of 4.9 stars across over 2,400 reviews, and eight of them offer around-the-clock response. That infrastructure matters when your furnace fails at midnight in January and you need Emergency HVAC in Oconomowoc.

When an emergency strikes outside normal business hours, pricing reflects the urgency. A weekday after-hours call runs $165 to $330, while weekend service ranges from $193 to $358. Holiday calls on major holidays can reach $248 to $495. Wisconsin does not require a statewide HVAC license, so local licensing determines who can legally perform emergency repairs, and homeowners should verify their chosen contractor meets municipal requirements before work begins. Most companies also charge a diagnostic fee, applied to the final repair bill if the work proceeds. The total cost depends on parts availability and system complexity.

Review patterns reveal what separates reliable emergency service from the rest. Pat's Heating & Air Conditioning earns consistent praise for technicians Sean, Jay, Paul M, and Luke, and customers highlight their professional communication and quality work. Kelly James Well Pump & Plumbing, Inc. draws attention for Scott's emergency responsiveness, with multiple reviewers noting same-day service. Alpha Heating & Cooling LLC receives similar commendation for same-day or late-night emergency response, with technicians Russ and Adam frequently arriving on schedule. Across these companies, fast response and clear communication define the customer experience.

Frequently Asked Questions

Emergency HVAC in Oconomowoc adds a premium of $100-$300 to the standard service call fee, with labor billed at 1.5-2x normal rates. After-hours weekday calls typically run $150-$300 before repairs, weekends $175-$325, and holidays $225-$450. Total emergency repair costs usually land between $300-$1,200.