Auto Air Conditioning and Heating Repair
Stay Comfortable Year-Round with Double Decker Auto Repair
Wisconsin summers are hot and humid. Wisconsin winters are brutal. Whether your A/C stopped cooling on a July afternoon or your heater isn't keeping up on a January morning, the team at Double Decker Auto Repair is here to help. We service A/C and heating systems for all makes and models.
Auto A/C systems are more complex than most drivers realize. A lack of cold air can come from low refrigerant, a failing compressor, a blocked condenser, a worn compressor belt, a faulty relay or switch, or a leak anywhere in the system. We use professional diagnostic equipment, including UV dye testing, halogen leak detection, and nitrogen pressure testing to find the source of the problem accurately before recommending repairs.
Your heater depends on many of the same components as your cooling system, plus the heater core, blower motor, and cabin air filter. We inspect and service the complete climate system so you're comfortable regardless of the season.
A/C & Heating Services We Provide
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A/C Performance Check & Refrigerant Recharge
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A/C Compressor Replacement
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Condenser Service & Replacement
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Evaporator Service
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Dryer & Accumulator Replacement
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High & Low Pressure Line Inspection & Repair
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Orifice Tube & Thermal Expansion Valve Service
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Compressor Belt Replacement
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Blower Motor Replacement
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Heater Core Inspection & Service
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Thermostat Replacement
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Water Pump Inspection & Replacement
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Coolant Flush & Refill
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Cabin Air Filter Replacement
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A/C Leak Detection (UV Dye, Halogen & Nitrogen Testing)
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Relay, Module & Sensor Inspection
Signs Your A/C or Heat Needs Service
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A/C blows warm or barely cool air
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Heater takes a long time to warm up or blows cool air
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Musty, moldy, or stale smell from the vents
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Weak airflow from vents at any setting
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Defroster not clearing the windshield effectively
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Unusual noises (clicking, grinding, squealing) when A/C or heat is on
Air Conditioning and Heating – FAQ
Why is my AC not blowing cold air?
It could be low refrigerant, leaks, or a faulty compressor.
Why isn’t my heater working?
Possible causes include low coolant or a bad heater core.
How often should AC systems be serviced?
Typically every 1–2 years or as needed.
Can you recharge my AC?
Yes, we can recharge and repair your system.