HVAC Installation, Air Conditioner Repair, AC Repair, Air Conditioner Service & AC Service

Carrier HVAC SystemPat’s Heating & Air Conditioning focuses on people. Our customers are friends, and we’ve built relationships through personalized service and dedicated job performance. Our team of technicians are part of the family, and share our commitment to ethical and honest business practices.

Trust Pat's Heating & Air Conditioning for quality HVAC services throughout Oconomowoc & surrounding areas!

Pat's Heating & Air Conditioning is Oconomowoc's first choice of HVAC Company because we stive to provide our customers with excellent service day in and day out. Whether you need routine furnace service, or a new heating system installed at your home, or your air conditioner needs to be repaired, we're here to help 24 hours a day. For any HVAC repair & service, don't hesitate to contact Pat's.

Furnace Replacement, Air Conditioning Repair & Service, AC System Installation in Summit, Oconomowoc, Delafield, Hartland, Waukesha, Pewaukee, Brookfield, Dousman, Sussex, Okauchee Lake, Stone Bank, Ixonia, and Genesee, WI

Thank You

Thank you to our valued customers and community for their continued support. Pat’s Heating & A/C considers it a privilege to serve your HVAC needs.

Review Us

With flexible scheduling, prompt arrival, and quick turnaround, we make sure service is convenient. Contact Pat’s Heating & Air Conditioning to schedule service.

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We bring small town treatment to the Greater Lake Country Area, handling your project with the care and consideration you deserve. Contact Pat's today!

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Air Quality

Breathe with confidence and enjoy the comfort of your home. Pat’s Heating & Air Conditioning provides professional Indoor Air Quality services throughout the Greater Lake Country Area.

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For the maintenance, installation, or repair of a ductless heating & cooling system, trust in Pat’s Heating & Air Conditioning. Contact us at 262-208-5829.

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Call Today 262-208-5829
Trouble Shooting Tips
Homeowner Tips to try before you call for service for no heat or no cool:
  • Check that the furnace switch is in the “on” position (switch is near your furnace and looks like a light switch)
  • Inspect your furnace filter – plugged filters can cause multiple problems
  • Make sure your circuit breaker is switched to the “on” position
  • Check thermostat to make sure display is lit; if not lit replace the batteries in thermostat
  • Verify that your thermostat is in the “heat” or “cool” mode
  • Be sure that the outside intake and exhaust pipes are clear of debris, leaves, or snow/ice build-up
Complete Customer Care Maintenance Plan Benefits:
Yearly Complete Customer Care Maintenance plan includes 1 furnace or boiler & 1 A/C tune-up
  • Priority Service
  • Reduced monthly energy costs; system runs more efficient
  • Peace of mind
  • Extends equipment life and improves performance
  • Helps prevent breakdowns
  • Documentation for warranty purposes
  • Convenient automatic reminder of service
  • Discount on repairs and replacement equipment
What Our Customers Are Saying About Us

Give Pat’s Heating & Air Conditioning a call or contact us for all your heating and cooling repairs, maintenance & installations!

Pat’s Heating & Air Conditioning handles new installation, equipment replacement, seasonal maintenance, and expert repair throughout Summit, Oconomowoc, Delafield, Hartland, Waukesha, Pewaukee, Brookfield, Dousman, Sussex, Okauchee Lake, Stone Bank, Ixonia, and Genesee, WI. Along with convenient appointment times, our technicians are on-call 24 hours a day, 365 days a year, to assist you in times of crisis. We specialize in a wide range of industry-leading, energy efficient options, including furnaces, air conditioners, heat pumps, ductless systems, humidifiers, dehumidifiers, air purifiers, and thermostats. Protecting the comfort, health, and management of your indoor environment, Pat’s Heating & Air Conditioning provides "Service That Exceeds Your Expectations!"

HVAC Contractor Summit, WI | Air Conditioner Repair Oconomowoc, WI | HVAC Company Delafield, WI

  • If you have an HVAC Emergency, please call us at 262-208-5829 in lieu of this form so that we can address your concern right away!