The Best HVAC in Union, MO

Compare the highest-rated hvac professionals in Union, Missouri. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Union Climate Control

4.8
(127 reviews)
Verified

A full-service HVAC contractor specializing in high-efficiency system installations and complex ductwork design. Known for expertise in both modern heat pumps and traditional gas furnaces, perfectly suited for Missouri's humid summers and cold winters. They are a Carrier Factory Authorized Dealer.

450 East Main Street, Union, MO 63084

Specialties & Features

Energy Efficient System Installation
Advanced Ductwork Design & Sealing
24/7 Emergency Repair
Indoor Air Quality Solutions

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Ozark Mountain Heating & Cooling

4.6
(94 reviews)
Verified

A locally-owned and operated company with deep roots in the Union community. They excel in heating system repair and replacement, particularly furnaces and boilers, making them a go-to for the region's cold snaps. They offer comprehensive maintenance plans to ensure system longevity.

1010 West Highway 50, Union, MO 63084

Specialties & Features

Furnace Repair & Installation
Priority Maintenance Plans
Boiler Services
Honest Diagnostics & Repairs

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#3

Show-Me State HVAC Services

4.5
(78 reviews)
Verified

Praised for responsive emergency service and straightforward, honest pricing. They handle a wide range of HVAC brands for repairs and are particularly adept at solving persistent cooling issues during Missouri's peak summer heat. Their technicians are NATE-certified.

223 Liberty Parkway, Union, MO 63084

Specialties & Features

24/7 Emergency AC Repair
HVAC System Tune-ups
Smart Thermostat Installation
Same-Day Service Availability

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top HVAC Contractors in Union

The HVAC market in Union, MO, is driven by a humid continental climate with hot, humid summers (average highs in the upper 80s°F) and cold winters (average lows in the 20s°F). This creates year-round demand for reliable heating and cooling. Residents prioritize companies that can provide quick emergency responses during seasonal extremes and that have expertise in both efficient air conditioning for summer and robust furnace systems for winter. The market is competitive with several long-standing local providers who have built trust through community presence.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Union regulations and climate

Frequently Asked Questions About HVAC in Union

Get answers to common questions about hvac services in Union, Missouri.

1What is the typical cost range for replacing a central air conditioner or furnace in Union, MO?

For a full system replacement in Union, homeowners can typically expect to pay between $5,000 and $12,000, depending on the system's size (measured in tons for AC and BTU for furnaces) and efficiency rating. Our local climate, with hot, humid summers and cold winters, often requires robust systems, influencing the price. It's crucial to get a detailed, in-home estimate from a licensed local contractor, as prices can vary based on home layout, existing ductwork condition, and the specific equipment chosen.

2When is the best time of year to schedule HVAC maintenance or replacement in Union?

The optimal times are during the mild shoulder seasons of spring (March-May) and fall (September-November). Scheduling maintenance or installation in spring prepares your AC for the intense Missouri summer heat and humidity, while fall service ensures your furnace is ready for winter. Booking during these off-peak periods is easier, as local HVAC companies are less overwhelmed than during the summer crisis or the first deep freeze of winter.

3Are there any local regulations or rebates in Union or Franklin County I should know about for HVAC work?

While Union follows standard Missouri state codes for HVAC installations, which require permits for new systems and major replacements, it's always best to confirm with the City of Union's Building Department. For rebates, check with Union's municipal utility, Ameren Missouri, which often offers incentives for upgrading to high-efficiency heat pumps, air conditioners, or furnaces. These rebates can provide significant savings and improve the payback period on your investment.

4How do I choose a reliable HVAC contractor in the Union area?

Always verify the contractor is licensed, insured, and has a good standing with the Missouri Division of Professional Registration. Look for established local companies with strong community reputations, as they understand the specific needs of homes in our area, including older homes with unique challenges. Ask for references from recent jobs in Union or nearby towns like Washington or St. Clair, and ensure they provide detailed, written estimates.

5My system is running but not cooling/heating effectively. What's a common local issue I should check first?

Before calling for service, check and replace your air filter, as a clogged filter is the most frequent cause of poor performance. For cooling, also ensure your outdoor condenser unit is clear of debris like grass clippings, leaves, and the cottonwood seeds prevalent in Missouri in late spring. For heating, check that all supply and return vents inside your home are open and unobstructed by furniture. If problems persist, a local technician can diagnose issues like refrigerant leaks or heat exchanger concerns.