Commercial HVAC | Heating and Cooling | Lake Geneva, WI
Peck & Weis

Serving Southeast Wisconsin and McHenry County in Illinois


"More People Get Comfortable With Us"

Our factory-trained technicians are all certified to ensure top-notch HVAC installations, maintenance and repairs for any equipment you have. With over 150 years of combined experience between us, there's no HVAC problem we can't solve.

Complete Commercial HVAC

Choose a trusted commercial contractor to handle all the heating and cooling equipment in your business. Peck & Weis is one of the largest contractors in the area with local roots and the manpower to offer experienced HVAC with personalized service for your property. We will keep your business comfortable with installations and repairs.


Our award-winning team will offer routine service to your heat pumps, air conditioners, boilers and more with certified installations when you need them!

For the safety and protection of your business, Peck & Weis is fully licensed, insured

and bonded. We offer the best industry value and highest level of professionality on every job.

Technicians are all NATE certified

Fully licensed, insured & bonded

Get complete HVAC repairs and installation to keep your business running smoothly. Someone is always on call at our office to ensure we can handle 24 hour heating or cooling emergencies with trucks and staff at the ready! Ask about our maintenance contracts so we can better serve the HVAC needs of your business.

Repairs on all makes and models of HVAC equipment

"Thank You Peck and Weis and Serviceman Mark for keeping us cool in the summer and warm in the winter. We highly recommend Peck & Weis for their great work, prompt arrival, and professinal service."

Linda S.

  • Air conditioners

  • Boilers

  • Evaporator coils

  • Fan coils

  • Geothermal heat pumps

  • Heat pumps

  • Ventilators

  • Modulating furnaces

  • 2-stage furnaces

  • Variable speed furnaces

  • Oil furnaces

  • Gas furnaces

  • High efficiency outdoor condensers

  • Hybrid systems

  • In-floor radiant heating

  • Geothermal systems

  • Electronic air cleaners

  • Media air cleaners

  • Humidifiers

  • De-humidifiers

  • UV indoor air quality lamps

  • Mechanical zone systems

  • Digital programmable thermostats

  • Wi-Fi compatible thermostats

  • HRV’s

  • Garage unit heaters

  • Wine chillers

  • Ductless split systems

  • E-TAC units

  • Roof top units

  • High velocity systems

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Coupon Expires 10/31/2017

*Terms and conditions apply

Call for details 262-248-6836

Fall Clean & Service Special