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AC Maintenance

AC Maintenance in Watertown, WI

Professional Air Conditioning Maintenance for Watertown, Waukesha, Sun Prairie, Lake Mills, Oconomowoc & Nearby Areas

Your air conditioner runs hard during Wisconsin summers, and without regular maintenance, efficiency and reliability can decline quickly. Professional AC maintenance is the most effective way to protect your system, reduce energy costs, and avoid unexpected breakdowns during peak cooling season.

Carew Heating & AC provides comprehensive air conditioning maintenance services for homeowners and businesses throughout Watertown and surrounding communities. We offer both one-time maintenance visits and a full annual HVAC maintenance program designed to keep your air conditioner and related comfort systems performing at their best year after year.

To schedule AC maintenance or learn more about our maintenance program, call (920) 262-2288.

For air conditioner maintenance in Watertown, call (920) 626-3962 or connect with Carew Heating & AC online. Do you need help in an emergency? We answer calls 24/7 and have same-day availability. 

What Professional AC Maintenance Covers

Air conditioning systems rely on many moving parts working together. Even minor buildup, wear, or calibration issues can reduce performance and shorten system lifespan. Our maintenance process is designed to identify issues early and optimize system operation before summer demand peaks.

During an AC maintenance visit, our technicians may:

  • Inspect and clean evaporator and condenser coils for proper heat transfer
  • Measure refrigerant levels and check for leaks
  • Verify expansion valve and refrigerant flow operation
  • Clean and flush condensate drains and drain pans
  • Inspect blower components and clean blower wheels
  • Lubricate motors and moving parts to reduce wear
  • Check fan blades for balance and secure mounting
  • Tighten electrical connections and inspect wiring
  • Test safety controls and system start/stop sequencing
  • Measure amperage draw to detect developing issues
  • Verify airflow and vent performance
  • Calibrate the thermostat for accurate temperature control
  • Measure temperature differential to confirm cooling output

We service central air conditioners, heat pumps, ductless mini-split systems, and other cooling technologies using professional tools and manufacturer-approved procedures.

Why Routine AC Maintenance Is So Important

Regular air conditioning maintenance is one of the highest-value investments you can make in your comfort system. Properly maintained systems perform better, last longer, and cost less to operate.

Key benefits of AC maintenance include:

  • Extended system lifespan
    Preventive care reduces strain on components and helps systems last longer.
  • Improved energy efficiency
    Clean, properly adjusted systems use less energy and help lower cooling bills.
  • Fewer unexpected breakdowns
    Small issues are identified before they become major repairs.
  • More consistent indoor comfort
    Balanced airflow and calibrated controls improve temperature stability.
  • Better indoor air quality
    Clean filters and coils reduce dust and airborne contaminants.
  • Peace of mind during peak summer heat
    You can rely on your system when temperatures rise.

Customers enrolled in our annual HVAC maintenance program receive additional benefits such as priority scheduling and service discounts. For details, call (920) 262-2288.

Hear From Our Happy Customers

    Thank You, Matt & Carew
    “Great company. The technicians are courteous and efficient. Matt did a great job and explained everything to me.”
    Kenneth K.
    Friendly & Fast Service. Highly Recommend This Company
    “Matt did a great job with my air conditioning cleaning. I recommend signing up for their comfort plan helps keep everything running well and service is on time. Matt does great with tolerance with my dogs; they always want to help.”
    Dave C.
    Thank You, Carew!
    “Matt was very pleasant to work with. He arrived on time and was very professional. He answered all my questions and offered some good advice. Definitely will be using Carew again. Thank you.”
    Rick E.
    Excellent Work
    “Alex did a great job explaining what he was doing and did the tune-up/yearly maint. in a timely manner. And was very nice.”
    Christian S.
    We are Grateful for Carew
    “Carew is the best! Our air went out on the hottest day of the year, and they came right away to help us! I am so grateful for their professionalism, quick service, and great prices!!”
    Jennifer R.
    Couldn't Be Happier
    “Carew installed a new furnace for me. The installation was quick and efficient. Everything went well, and it's running great.”
    Michael M.
    Above & Beyond
    “Carew Heating & AC Inc has been very helpful in sorting my heating and AC needs in my home that I recently purchased. Rob, the Technician was very polite, informative, and thorough.”
    Peter R.
    10/10 Highly Recommend!
    “We had a fantastic experience with Ben and Alex today! They arrived right on time, were incredibly professional, and clearly knew their stuff. It’s not every day you find a team that brings both expertise and a great sense of humor into your home.”
    Aaron J.
    No One Better!
    “I have been a customer of Carew Heating and Air since we moved to Watertown 5 plus years ago. We are always beyond pleased with our service needs. They are experts. I highly recommend Carew! Thank you!”
    Lee K.

Contact Us Today!

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