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HVAC tech repairing a customer's AC

Air Conditioner Repair and Maintenance

From Quick Fixes to Complex Repairs, the Martens Plumbing & Heating Pros Do It All

When your air conditioner, heat pump, or ductless system goes out on a hot summer day, you need a reliable HVAC provider on speed dial—that’s Martens Plumbing & Heating. Our factory-trained technicians are knowledgeable about all makes and models of cooling systems and can fix yours in no time. The most common problems we repair, include:

  • No cooling power
  • Low refrigerant levels
  • Dirty condenser coils
  • Clogged air filters
  • Frozen evaporator coils
  • Malfunctioning thermostats

Not sure what’s wrong? We’ll inspect your cooling unit, let you know what’s behind your breakdown, and tell you how much it will cost to fix it before starting any work. Our vans are fully stocked, so we will likely have everything we need to fix your system right then and there.

We offer 24-hour emergency service because we understand that breakdowns don’t always happen during business hours. Every time you call us, you’ll be greeted by a helpful person—not an answering machine. We respond to all emergencies and after-hour calls quickly and send help as soon as possible.

We Encourage Mukwonago Homeowners to Make Maintenance a Priority

Regular maintenance is vital in keeping your air conditioner running for longer and avoiding breakdowns. A routine cleaning and inspection also allows us to find issues before they cause serious damage and cost you a lot in repair bills. During a maintenance appointment, we’ll:

  • Inspect and test all major parts
  • Clean out dirty, grimy buildup that reduces efficiency
  • Replace your air filter to keep air clean and moving freely
  • Test your system to make sure it’s working correctly
  • Find and fix problems before they get worse
  • Make other recommendations as needed

This once-a-year service helps lower energy bills, improve air quality, and extend system lifespan. No matter how old, new, clean, or dirty your system is, count on our pros to make sure it’s running safely.

Reliable residential and commercial cooling service is what we’ve built our reputation on. And after six successful decades of service, it’s what customers have come to expect from us. Whether it’s time for an installation, repair, or maintenance, experience our quality for yourself—call 262-363-7146 or contact us online today.