Quick answer
Homeowners north of the airport rely on Comfort Air Solutions as their HVAC contractor in Union, OH for AC repair, furnace replacement, R-22 system upgrades, duct cleaning and twice-a-year tune-ups. A technician leaving Miamisburg is usually at a Union door in about 35 minutes, and the phone is answered 24 hours a day for no-heat and no-cooling emergencies.
Union is a small city on the north side of Dayton International Airport, with Englewood to the west and the Miami County line just to the north. It’s on our regular northern route along with Vandalia and Englewood, around 35 minutes from our Miamisburg shop.
Most people here want the same things: a tech who shows up when promised, explains what’s wrong without jargon, and doesn’t push a new system when a single part will do.
Union homes and the HVAC problems we see
Union’s 1960s–90s housing
Union’s homes are mostly from the 1960s through the 1990s: brick-front ranches, bi-levels and two-stories in subdivisions built as the airport and I-70 drew people north. The earliest of these have had at least one replacement, while many 1990s homes still run their original furnace and AC.
Original 1990s equipment is where decisions get interesting. Those air conditioners used R-22 refrigerant, which is no longer produced, so a major leak often tips the math toward a new AC and furnace rather than a costly recharge. We show you both paths and let you decide.
Bi-levels have their own quirk: the lower level stays cool while the upper level bakes, because one thermostat is serving two very different spaces. Adjusting dampers and blower speed usually helps more than a bigger unit, and a yearly furnace and AC tune-up keeps those settings from drifting.
Many of these houses have been through a remodel or two by now. Drywall dust from a basement finish or kitchen redo settles in the return ducts and gets pulled through the blower for years, which is why air duct cleaning is worth considering after major work.

Local to Union
We work in subdivisions throughout the city, from the streets nearest the airport’s northern edge to the homes out toward the county line. Union is part of the Northmont City School District, and the Englewood MetroPark trails are a few minutes west.
A typical call from Union
In July, a common Union call is an AC that hums but won’t start. On a 1990s condenser, the usual culprit is a failed run capacitor or a burnt contactor, both quick AC repairs handled in one visit. If the compressor itself has grounded out, we tell you plainly and price out a replacement on the spot.
Homes in neighboring Englewood and West Milton get the same straightforward treatment.
Two practical notes for Union households. The city shares the 45322 ZIP code with Englewood, so give us your street as well as the town when you call. And because Union sits just past the airport’s northern fence line, the drive from Miamisburg runs up I-75, west on I-70 and north around the runways, which is also why we pair Union visits with stops in Vandalia and Englewood the same day.
A practical HVAC guide for Union homes and condos
Union is a small, mostly residential city, and its housing falls into a few clear groups: mid-century brick houses, the big wave of bi-levels and two-stories from the 1970s through the 1990s, condos and attached homes, and a handful of newer infill builds. Each group reaches the end of its equipment’s life on a different schedule.
Where your Union house probably stands
| Housing group | Likely equipment today | The decision on the table |
|---|---|---|
| Mid-century brick ranch | Second or third furnace, AC added later | Whether the ductwork and returns can support a modern variable-speed unit |
| 1970s–80s bi-level | Replacement furnace, older matched AC | Fixing the hot-upstairs, cool-downstairs split with dampers or zoning |
| 1990s two-story | Original furnace and R-22 condenser | Planned replacement before a mid-July failure versus riding it out |
| Condo or attached home | Closet furnace or air handler, small condenser on a shared pad | Replacing within association rules and tight access |
| Recent infill | Newer high-efficiency equipment | Keeping warranty-required maintenance records current |
Condos and attached homes in Union
Union’s condo and attached-home communities grew alongside the single-family streets north of the airport, and many of those units now hold their second set of equipment in a hall closet. They bring a few extra steps. Before any replacement we look at the following, and we are glad to talk with a property manager or board when their approval is needed:
- Where the condenser sits and whether the association limits size, location or line-set routing on exterior walls.
- How the furnace or air handler vents, since sidewall PVC terminations have clearance rules from windows and neighboring doors.
- Whether the condensate drains to a floor drain or needs a pump, and where that pump discharges in a unit with no basement.
- Access for removing the old equipment through narrow halls and stairways without damaging shared spaces.
Timing a replacement in Union
If your system is original to a 1990s house, the calmest time to replace it is spring or fall, when there is room in the schedule to compare options without the house at 85 degrees. A free estimate from our HVAC contractor team gives you written choices at several price points, and nothing has to be decided that day.
HVAC services in Union, OH
The work Union homeowners call us for most:
AC Repair & Installation
Central air repair and new AC installs in Miamisburg, measured with real refrigerant readings and sized by load calculation, so your home stays cool and dry through humid Ohio summers.
Learn more about AC Repair & InstallationSystem Replacement
A properly sized, matched Bryant furnace and AC or heat pump, with load calculations, permits, clean installation and options at more than one price point.
Learn more about System ReplacementFurnace & Heating
Gas furnace repair, safety testing and new installs across Miamisburg and Dayton, with combustion analysis on every heating call and free quotes on replacements.
Learn more about Furnace & HeatingMaintenance & Tune-Ups
Spring AC and fall furnace tune-ups, plus the Comfort Air Fan Club plan, to catch worn parts early and keep your Miamisburg system running efficiently all year.
Learn more about Maintenance & Tune-UpsAir Duct Cleaning
Source-removal air duct cleaning for Miamisburg homes, done by HVAC technicians who also check the blower, coil and duct leaks, so cleaner ducts actually mean better airflow.
Learn more about Air Duct Cleaning
Why Union residents choose Comfort Air Solutions
Honest calls on R-22 systems
Plenty of Union’s 1990s houses still have their first air conditioner. We tell you whether a small leak is worth repairing or whether the system has earned retirement, and we put both paths in writing.
Bi-level balancing, not bigger equipment
Split-foyer homes in Union fight a hot upstairs and a cool lower level. We adjust dampers, blower speed and return paths first, because a larger unit rarely fixes an airflow problem.
A small-town standard of service
Our office staff answers the phone, technicians wear shoe covers and clean up, and owner Kevin Turner keeps tabs on installs. Those habits are why our Google rating sits at 4.8 across 32 reviews.
Maintenance that fits the calendar
Comfort Air Fan Club members in Union get a spring cooling check and a fall furnace visit, priority scheduling when something breaks and a percentage off service calls.
Union service area map
Nearby areas we serve
Need heating or cooling help in Union?
Call Comfort Air Solutions — 24/7 emergency service, free replacement quotes, and written options before any work begins.
Call (831) 461-3437- 4.8★ · 32 Google reviews
- 25+ years’ experience
- Written options before work
- Factory-Authorized Bryant® Dealer
Comfort Air Solutions
6045 Manning Rd, Miamisburg, OH 45342
Office: Mon–Fri · 9:00 am – 5:00 pm
Emergency service: 24/7 — nights, weekends & holidays
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