Affordable and Reliable HVAC Services in Marion, WI

Marion HVAC Services for Year-Round Comfort

Tired of Dealing With Uneven Temperatures or Rising Energy Bills?

When your heating or cooling system isn’t working like it should, it can leave you guessing. Maybe some rooms feel too hot while others stay cold, your utility bills are climbing or the system won’t start at all. Our HVAC services in Marion, Wisconsin, focus on finding the issue fast and preventing it from turning into a bigger, more expensive problem.

We service furnaces, air conditioners, heat pumps and complete HVAC systems. Whether it’s a simple repair, routine maintenance or a full system replacement, we explain everything in clear, straightforward terms so you can decide what makes the most sense for your home.

Our focus is to keep your equipment running efficiently, help it last longer and keep your home comfortable through every season.

Our HVAC services include:

• Air Conditioning Installation
• Air Conditioning Maintenance
• Air Conditioning Repair
• Ductless Mini-Split System
• Thermostat Repair and Installation
• Boiler Service
• Furnace Installation
• Furnace Maintenance
• Furnace Repair
• Heat Pump Installation
• Heat Pump Maintenance
• Heat Pump Repair
• AC and Furnace Air Filter Replacement
• Air Duct Cleaning
• Air Duct Sealing
• Air Handler Repair and Installation
• Dehumidifier Installation and Repair
• Humidifier Installation and Repair
• HVAC Duct Work Repair
• HVAC UV Light Installation

Emergency HVAC Services in Marion, WI

HVAC System Just Stopped Working? We’re Ready When You Need Us.

When your HVAC system stops working, waiting isn’t an option. Whether you’re dealing with a cold winter night or a humid summer day, our emergency HVAC services in Marion, Wisconsin, are designed to restore comfort as quickly as possible.

We take care of urgent problems like full system failures, unusual noises, weak airflow and units that won’t start. Our technicians show up prepared to identify the issue and make repairs right away whenever they can, so you’re not left without heating or cooling.

Common emergency HVAC problems we fix:

• No heat or no air conditioning

• System won’t power on

• Loud or unusual noises, including burning odors

• Sudden drop in airflow

• Frozen components or systems overheating

When things go wrong, you need service you can count on. We provide straightforward answers, honest pricing and repairs that are built to last.

Heating Repair and Installation in Marion, WI

Worried Your Furnace Won’t Keep up This Winter?

If your home isn’t staying warm, your heating system may not be keeping up. You might notice hot and cold spots, reduced airflow or a furnace that cycles on and off too often. Our heating services in Marion, Wisconsin, focus on getting your home comfortable again while improving how your system performs.

We service furnaces, boilers and heat pumps, whether you need a minor repair or a full replacement. If your system is older or becoming expensive to run, we’ll go over your options in simple terms so you can choose what fits your home and budget.

Our heating services include:

• Furnace repair, replacement and installation

• Boiler service and routine maintenance

• Heat pump repair and installation

• Thermostat adjustments and upgrades

• System evaluations for airflow and heating performance

Ongoing maintenance can help you avoid unexpected breakdowns and keep things running smoothly through the winter. If repairs are becoming more frequent or your system isn’t performing like it used to, replacing it may be the better long-term solution.

Air Conditioning Services in Marion, WI

AC Not Keeping up or Blowing Warm Air? Let’s Fix It Fast.

When your air conditioner isn’t keeping up, your home can get uncomfortable in a hurry. You may feel warm air from the vents, notice weak airflow or see the system running nonstop without cooling things down. Our air conditioning services in Marion, Wisconsin, are focused on fixing the issue fast and keeping your home cool when it matters most.

We take care of everything from minor AC repairs to full system replacements. If your unit is older or not performing well, we’ll help you weigh your options so you can choose what makes sense based on efficiency, cost and long-term reliability.

Our AC services include:

• Air conditioner troubleshooting and repair

• New AC installation and system replacement

• Refrigerant leak detection and recharge

• Evaporator coil and condenser maintenance

• Seasonal tune-ups and preventative service

A well-running AC system does more than cool your home. It also helps manage humidity and energy use. If your system isn’t working like it used to, it’s best to have it looked at before it turns into a bigger problem.

HVAC System Installation and Replacement in Marion, WI

Is Your System Outdated or Costing Too Much To Run?

If your HVAC system keeps breaking down or your energy bills are trending up, it may be time to consider a replacement. Older systems often lose efficiency, which makes it harder to keep your home comfortable. Our HVAC installation services in Marion, Wisconsin, are focused on upgrading you to a system that runs better and is more cost-effective to operate.

We install full heating and cooling systems, including furnaces, air conditioners and heat pumps. Every system is selected based on your home’s size, layout and comfort goals, so you get the right fit from the start.

Our installation services include:

• Furnace and air conditioner installation

• Heat pump system upgrades

• Energy-efficient equipment options

• Proper system sizing for airflow and performance

• Removal and replacement of existing equipment

We provide free estimates and straightforward recommendations, so you can make a confident decision without pressure. From start to finish, our team handles the entire installation process to keep things simple and smooth.

Indoor Air Quality Services in Marion, WI

Concerned About Dust, Allergies or Dry Air in Your Home?

Your HVAC system affects more than just temperature. It also impacts the air inside your home every day. If you’re dealing with excess dust, dry winter air or worsening allergies, your indoor air quality could be the issue. Our indoor air quality services in Marion, Wisconsin, are built to create a cleaner, more comfortable living space.

We provide solutions that integrate with your current HVAC system to improve airflow, manage humidity and reduce airborne contaminants. These upgrades can noticeably improve how your home feels, especially during Wisconsin winters when everything stays closed up.

Our indoor air quality services include:

• Whole-home air purifiers to help reduce dust and allergens

• Humidifiers to add moisture during dry winter months

• Dehumidifiers to manage humidity in warmer seasons

• High-efficiency air filters for improved filtration

• System evaluations to improve airflow and circulation

Cleaner indoor air can also help your HVAC system perform better by limiting buildup within ducts and components. It’s a practical way to improve comfort while supporting long-term system performance.

Why Marion Homeowners Trust Knope

Choosing the right HVAC company matters. You want someone who shows up, does the work right and stands behind it. Here’s why customers across southern Wisconsin continue to choose Knope Heating & Air Conditioning:

• Locally Owned and Operated: Serving Marion and Northeast Wisconsin since 1946.

• Certified, Experienced Technicians: NATE-certified professionals with real, hands-on knowledge of HVAC systems.

• Responsive and Reliable Service: Known for prompt service, including same-day and emergency support when needed.

• Focus on Comfort and Efficiency: Solutions designed to improve comfort while helping manage energy use.

• Straightforward Recommendations: Clear communication and a focus on customer satisfaction.

• Proven Industry Recognition: An 8-time Carrier President’s Award recipient, recognized for performance and commitment to customer satisfaction.