Air conditioning
AC repair & installation for Westchester homes
When the air conditioner quits in July, you want people who've been doing this since 1969. Repairs, replacements and the tune-ups that prevent both.
Central air conditioning
Repair, replace or tune up: we’ll tell you which you need
AC repair
No cooling, warm air, short cycling, ice on the lines, water where it shouldn’t be. We find the cause and fix it, on the first visit whenever we can.
AC replacement
High-efficiency central air, properly sized for your home. Lower electric bills and a quieter, more even summer.
AC tune-ups
A spring visit keeps your system running efficiently all summer long, and catches small problems before the first heat wave.
AC not turning on?
Check these four things before you call
A surprising number of “broken” air conditioners are one of these. If none of them is the problem, call us. Don’t keep resetting a breaker that trips again.
Thermostat
Set to Cool, set below room temperature, and fresh batteries.
Breaker & switch
Check the breaker panel and the service switch by the outdoor unit.
Air filter
A clogged filter starves the system of air and can freeze the coil.
Condensate drain
A backed-up drain can trip a safety switch that shuts the AC off.
What our technicians look for
The four things that quietly drive up your electric bill
Dirty condenser coils
Dirt on the outdoor coil raises refrigerant pressure higher than needed, which increases your electric bill. Cleaning keeps the equipment at maximum efficiency.
Wrong refrigerant charge
We check the charge by measuring the temperature difference and reading the gauges. An improper charge can go unnoticed until the compressor shuts down.
Clogged condensate drains
A clogged drain raises indoor humidity and can cause extensive water damage. Proper maintenance prevents both.
Dirty blower wheels
Dirty blower wheels reduce airflow, so the system runs longer and costs more. A thorough cleaning restores comfort and efficiency.
AC tune-up checklist
Every air conditioning tune-up includes
Spring is the time for air conditioner maintenance. With a little care, your system will run efficiently all summer. A maintenance agreement means we schedule it for you.
- Check thermostat operation
- Clean & adjust automatic controls
- Check for refrigerant leaks (locating a leak is additional)
- Lubricate all parts as necessary
- Check blower belt tension & alignment
- Replace air filter with high-efficiency media
- Check coil temperatures
- Inspect & clean condensate pump
- Check the evaporator
- Clean the condenser coil
Replacing an old system
New central air, installed by people who’ll still be here to service it
When an old system is costing more in repairs and electricity than it’s worth, we’ll recommend a high-efficiency replacement sized for your home, not a one-size-fits-all box. Older homes without ductwork are often better served by ductless mini-splits.
Ask about NEIF financing and current Con Edison rebates when we quote.
Russ and the guys replaced both of my (very old) systems on the hottest days of the year. They worked from sun up to sundown that day — without complaint and minimal breaks. The new systems are so good we’re running them about half as much as the old but the house is colder than it’s ever been.
Wil P.Google review · Aug 2025 Google
Old refrigerant or new
R-22, R-410A, R-454B or R-32: we work on all of them
Air conditioning has switched refrigerants more than once, and Westchester homes have every generation. Whatever is in your system, our technicians know how to service it.
Older systems: R-22 & R-410A
We repair and maintain air conditioners that run on R-22 and R-410A, the refrigerants in most systems installed before 2025. R-22 is no longer produced, so if an older system is low on refrigerant we’ll give you a straight answer on repair versus replacement.
New systems: R-454B & R-32
New air conditioners and heat pumps are now built for R-454B and R-32, refrigerants designed to be more environmentally friendly, with a much lower global-warming potential than R-410A. We install and service them.
Air conditioning FAQ
Air conditioning questions, answered
Why won't my air conditioner turn on?
First check the simple things: the thermostat is set to Cool and below room temperature, its batteries are good, the breaker hasn't tripped, and the filter isn't clogged. Many systems also have a safety switch that shuts the unit off when the condensate drain backs up. If none of that does it, call us. Don't keep resetting a breaker that trips again.
Why is my AC running but blowing warm air?
Common causes are a dirty condenser coil, an incorrect refrigerant charge, a frozen indoor coil or a clogged filter. A dirty condenser coil alone raises refrigerant pressure and your electric bill. Our technicians check all of these on every service call.
Can you service an older R-22 or R-410A air conditioner?
Yes. We work on older systems that use R-22 and R-410A, and on new systems built for R-454B and R-32, refrigerants designed to be more environmentally friendly. R-22 is no longer produced, so if an R-22 system needs refrigerant we'll tell you honestly whether repairing it or replacing it makes more sense.
When should I have my air conditioner serviced?
Spring, before the first hot spell. With a little care, your system will run efficiently all summer long.
Can you replace an old central air system?
Yes. We install high-efficiency central air and can tell you whether replacing or repairing makes more sense for your home. Ask about financing and current Con Edison rebates.
Related services
More ways we keep you cool
Ductless Mini-Splits
Quiet, efficient comfort for homes with radiators and no ductwork, plus blower wheel cleanings that clear the buildup behind musty smells.
Learn more
Maintenance & Repair
Maintenance agreements we schedule and bill for you, so your equipment lasts longer and costs less to run.
Learn more
24/7 Emergency Service
No heat on a January night or no cooling in a heat wave? We answer around the clock and dispatch a trained technician.
Learn more
Need heat, cooling or a second opinion?
Talk to a real person at All State: day, night or weekend.