Need Financing?
We provide financing options through trusted lenders. With approved credit, you can select the plan that best fits your project timeline.
Ready For a New Unit?
Find the perfect system for your home, take our quick needs assessment today.
Comprehensive HVAC & Air Quality Services
At Third Coast Heating and Cooling in Waukesha, Germantown and Brookfield, we handle all your comfort needs, big or small. Our team has the expertise to install, repair, and maintain a wide range of HVAC systems, ensuring optimal performance and energy efficiency year-round.
Heating
Our Heating products are designed to provide efficient and reliable heating and cooling solutions for your home or business.
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Cooling
From ductless mini-splits to central AC units, our air conditioning products provide reliable cooling and improved indoor comfort.
Heat Pumps
Whether ductless or whole-home, our heat pumps provide quiet, energy-smart heating and cooling to keep every room comfortable in every season.
Air Quality
Breathe easier and live healthier with our indoor air quality (IAQ) solutions. We offer advanced air purification systems, humidity control (humidifiers and dehumidifiers), and UV purification to reduce allergens, pollutants, and airborne contaminants in your Milwaukee-area home.
Top Rated Heating and Cooling in Waukesha, Germantown and Brookfield
Welcome to Third Coast Heating & Cooling, your local experts dedicated to keeping homes and businesses comfortable throughout Waukesha, Germantown and Brookfield, and surrounding areas. Whether you’re facing a sweltering summer day with a broken AC or a frigid winter night with a faulty furnace, our licensed and certified technicians are ready to provide fast, reliable solutions. We offer comprehensive heating, cooling, and indoor air quality services, backed by a commitment to honesty, integrity, and your complete satisfaction. Need immediate help? We offer 24/7 emergency HVAC repair service across the Waukesha, Germantown and Brookfield areas.
Experience the Third Coast Difference
Trust, Integrity, and Your ComfortThank you for considering Third Coast Heating & Cooling. We are more than just an HVAC company; we are your partners in maintaining a comfortable and healthy home environment. As a trusted, local, experienced business, we are committed to serving the Waukesha County and Milwaukee County communities with integrity and expertise.
FINANCING OPTIONS
Flexible Financing for your comfort
At Third Coast Heating & Cooling, we believe everyone deserves a comfortable home. That’s why we’ve teamed up with Wells Fargo to provide flexible financing options for your HVAC needs. With convenient payment plans and trusted support, you can invest in reliable heating and cooling solutions that fit your budget. Discover how easy it is to bring home comfort within reach. Financing Subject to Credit Approval
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Exclusive HVAC Savings for Aurora Health Care Professionals
Third Coast Heating & Cooling is proud to support the hardworking medical professionals who keep our communities healthy. As a thank you for your service, we’re offering exclusive HVAC discounts to Aurora Health Care staff to help keep your home comfortable year-round.
SEE WHAT YOUR NEIGHBORS ARE SAYING ABOUT Third Coast Heating & Cooling
Our Blog
HELPFUL TIPS FROM OUR TEAM OF EXPERTS
Emergency HVAC Repair Milwaukee Cost: Fast and Reliable Services
Table of Contents What Milwaukee Homeowners Need to Know About Emergency HVAC Repairs Milwaukee-Area Communities We Serve and Their HVAC Repair Needs Emergency HVAC Repair Cost in Milwaukee, Wisconsin: Pricing and Availability Key Factors Affecting Emergency Repair Bills in Wisconsin How to Get Fast, Reliable Emergency HVAC Service in Milwaukee Take the Next Step for […]
Seer2 Ratings for Air Conditioners 2026: Complete Efficiency Guide
Table of Contents SEER2 Ratings for Air Conditioners in 2026: What Wisconsin Homeowners Need to Know 1. Understanding SEER2 Efficiency 2. SEER vs SEER2: Key Differences 3. What’s a Good SEER2 Rating? 4. 2026 Minimum Standards for Wisconsin 5. Split vs Packaged: SEER2 Rules 6. Highest Efficiency AC Brands 7. Savings with High SEER2 Mini […]
Best Whole House Dehumidifier for Milwaukee: 2026 Guide
Table of Contents Whole House Dehumidifier Solutions for Wisconsin Homeowners Understanding Indoor Humidity Challenges in Wisconsin Homes The Role of Humidity in Indoor Comfort and Air Quality Why Wisconsin’s Climate Demands Year-Round Moisture Control Common Signs Your Home Has Excess Humidity Health and Comfort Benefits of Whole House Dehumidifiers for Waukesha and Brookfield Allergy Relief […]
