AC Repair in Sussex, WI

Sussex grew rapidly. Through most of the 20th century it remained a small Waukesha County village with a modest downtown along Main Street and farmland on every side. Then the 1990s arrived, sewer expansion opened up large tracts, and Sussex became one of the fastest-growing communities in the Milwaukee metro. The neighborhoods that developed along N. Pine Lake Road and Pewaukee Road are predominantly newer construction — homes built in the 1990s through the 2010s with modern HVAC systems that were state-of-the-art at the time of construction.

That concentrated era of construction means Sussex's AC service needs have a predictable profile. Systems installed in the mid-1990s through the mid-2000s are now 15 to 25 years old — past their expected service life or approaching it. Refrigerant leaks, capacitor and contactor failures, cracked heat exchangers in aging two-stage systems, and blower motor wear are the service calls we field most often from Sussex homeowners. The Bugline Recreation Trail corridor marks some of the village's more established residential areas where mid-1990s homes now host furnaces and AC systems entering their second generation.

Sussex's newer construction features more sophisticated equipment: two-stage compressors, variable-speed air handlers, and communicating thermostats are common in homes built after 2000. Servicing this equipment properly requires technicians trained on current technology — not just the basics. The green corridors and open spaces around Sussex also mean seasonal pollen and cottonwood loads can be heavy, clogging condenser coils and reducing efficiency for homeowners who skip annual maintenance.

Burkhardt Heating, Cooling, Plumbing & Electric serves Sussex and all of Waukesha County. NATE-certified technicians, all major brands, advanced equipment expertise, and 24/7 emergency service. Call 414-206-3049. GreenSky financing available for replacements.

Burkhardt Heating, Cooling, Plumbing & Electric is a third-generation family business with over 60 years of service in the greater Milwaukee area. Our NATE-certified technicians undergo continuous training on the latest equipment and diagnostic techniques. We back our work with straightforward pricing, honest repair-versus-replace guidance, and 24/7 emergency availability every day of the year. Call 414-206-3049 to schedule service or request emergency AC repair.

Thermostat and Controls

If your AC isn't cooling properly, the issue may be your thermostat rather than the unit itself. We diagnose and repair all thermostat types — programmable, smart (Nest, Ecobee, Honeywell), and standard models. Incorrect thermostat settings, dead batteries, faulty wiring, or a thermostat placed in direct sunlight can all cause cooling problems. We'll pinpoint the issue and get your system running right.

Our technicians service all major AC brands: Lennox, Carrier, Trane, Rheem, Goodman, American Standard, Bryant, York, Amana, Ruud, Coleman, and Heil.

Air Conditioning Services in Sussex

Burkhardt Heating, Cooling, Plumbing & Electric provides complete air conditioning services in Sussex, WI — including AC repair, air conditioning installation, air conditioning replacement, and seasonal maintenance. Our NATE-certified technicians service all major AC brands and respond quickly to keep your home cool throughout Wisconsin's warm months. Sussex homeowners trust Burkhardt for reliable, affordable air conditioning service backed by 60+ years of local experience.

Whether you need same-day AC repair or a new central air conditioning system installed in your Sussex home, Burkhardt delivers professional results with upfront pricing. GreenSky financing is available for qualifying equipment purchases. Call 414-206-3049 to schedule air conditioning service in Sussex.

My Sussex home was built in 1998 and still has the original two-stage AC. Is that a concern?

A 25-plus-year-old system has exceeded its typical service life. Two-stage systems that old often have worn compressor valves, refrigerant leaks, and electrical components that are marginal at best. Burkhardt can assess your system's current condition and give you an honest comparison of repair versus replacement costs.

My Sussex AC has a variable-speed blower. Can Burkhardt service that system?

Yes. Our NATE-certified technicians are trained on variable-speed and communicating systems from all major manufacturers. These systems require proper diagnostic tools and technical knowledge beyond basic residential AC — Burkhardt has both.

How often should I replace my AC filter in Sussex?

Standard 1-inch filters should be replaced every 30 to 60 days during cooling season, especially in Sussex where pollen and cottonwood loads can be heavy. High-MERV media filters can go longer but should be checked monthly. A clogged filter is one of the most common causes of reduced AC performance and frozen coils.

Related Services

• All Services in Sussex
• AC Installation in Sussex
• AC Maintenance in Sussex

Learn more about our air conditioning services across southeastern Wisconsin.