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Don’t be phased by hot days—Gross Heating installs and repairs air conditioners and heat pumps to put you in control of your comfort. With regular maintenance, we’ll also help you control cooling costs.

Air Quality

Our experts can test indoor air quality with AirAdvice for Homes, then recommend air purifiers and other products to clean your air and control humidity. Ask us about programmable thermostats and CO alarms, too.


For warmth when you need it, trust us to install, service, repair, or replace your furnace, boiler, or alternative heating system. Call us if you have an emergency, or for maintenance that prevents problems.


We have answers to all of your heating and cooling questions.

Can any home have central air?

Almost any home can include central air conditioning, if you’re willing to invest in ductwork and make design allowances for it. But before you make that decision, schedule an in-home consultation with an HVAC expert like Gross Heating—we can give you a better idea of what would be involved and also explain alternative cooling options, like ductless split systems.

What is the average life of an air conditioner?

Many air conditioners can last 15 to 20 years, if maintained properly. You may need a few repairs along the way, but your Gross Heating technician can usually catch and fix small problems during your annual Clean & Check.

How do I know what size air conditioning unit my house needs?

A licensed and insured HVAC specialist like those at Gross Heating should be consulted before you add or replace a cooling system. We’ll do a proper calculation that factors in the layout and square footage of your house, average climate, the number and type of windows, insulation, and even the number of people living in the home. Without these considerations, you could end up with a unit that is not big enough, meaning it will likely not keep up with your cooling needs or last as long as expected—or a system that is so big that it constantly cycles on and off and wastes energy.

Is there anything I can do to make my air conditioner more energy-efficient?

Here are a few easy ways to minimize your summer energy use and cooling costs:

  • Make sure all air vents are open and unrestricted.
  • Get a programmable thermostat so your AC doesn’t run continually when you’re gone.
  • Do regular maintenance and filter changes.
  • Use ceiling fans so you can turn your thermostat up a few degrees and still feel comfortable.

How important is humidity?

Air moisture levels have a big effect on comfort—too much humidity and you’ll feel hot and sticky, too little and you’ll feel cold and itchy. They can also impact your health, especially when dry winter air leads to irritated eyes, sore throats, bloody noses, body aches, and more frequent colds and flus. If that’s not enough to make you want a humidifier, know that your home wants one, too—without proper humidity, your wood floors will warp, furniture can crack, and wallpaper can peel.

Should my heating and cooling system fan switch be set to “on” or “auto?”

If you’re interested in keeping your energy costs down, use the auto setting so the fan only runs when needed to maintain the set temperature. However, if you prefer a more consistent temperature, use the on setting for uninterrupted airflow. This option may also be beneficial if you have allergies or asthma because air will constantly be filtered as it flows through the system.
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Gross Heating & Air Conditioning
3260 N. 126th Street
Brookfield, WI 53005
Phone: 262-783-6000
24-Hour Emergency Service Available
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