Summer A/C Tune-Up: What to Check Before the First Westchester Heat Wave

Plitnick has serviced cooling systems across Dobbs Ferry, Hastings-on-Hudson, Irvington, Tarrytown, Yonkers, White Plains, Ardsley, and the surrounding river towns since 1977. Below is the seasonal A/C tune-up checklist our crew runs every spring, plus the issues we see most often in pre-war and modern Westchester homes.

What a Plitnick A/C tune-up actually covers

A real A/C tune-up is not just a filter swap. Our crew runs through fifteen-plus checks on every system: refrigerant pressure check (low charge means the compressor works harder and fails earlier), coil cleaning indoor and outdoor (dirty coils kill efficiency by 15 to 30 percent), capacitor and contactor inspection (these fail more often than any other A/C component), condensate drain flush (a clogged drain can flood a basement or trip a safety switch in the middle of a heat wave), blower motor amp draw (a motor pulling high amps is days from failing), thermostat calibration (the system is only as smart as the thermostat telling it what to do), electrical connection tightening, filter replacement, and ductless mini-split filter and indoor unit cleaning where applicable.

We document each check, photograph anything that needs attention, and walk you through what we found before quoting any repair work.

Westchester-specific A/C issues we see every spring

Westchester's housing mix means we see a different distribution of issues than a flat-suburb HVAC company in another state. Pre-war homes in Hastings, Irvington, Dobbs Ferry, and Tarrytown river-front districts often have high-velocity Unico systems or ductless retrofits because they were never built for ductwork, and these need different maintenance than a standard central system. Mid-century homes in Yonkers, White Plains, and Ardsley often have original 30-plus-year-old air handlers running on R22 refrigerant; R22 was phased out in 2020 and is no longer manufactured, so if your system uses R22, every leak repair costs more than the last one. Newer homes and renovations have R410A systems, the post-R22 standard, that are now being phased down in favor of R454B for systems installed in 2025 and beyond. Mitsubishi Electric ductless systems, which we install as a Diamond Contractor, need annual indoor-unit cleaning to keep the head from freezing up in humid Westchester summers.

When to skip the tune-up and just replace the system

Sometimes a tune-up is throwing good money after bad. Replace, do not repair, when the system is over 12 years old and uses R22 refrigerant, the compressor is failing (compressor replacement is half the cost of a new system), your last three summers each had a $300-plus repair, or you are upgrading the home anyway and want to qualify for NY State Clean Heat rebates on a heat pump. We will tell you straight up if a tune-up is the wrong call. We do not push replacements that you do not need.

What homeowners can do themselves

Replace the air filter every 30 to 60 days during heavy use. Clear leaves, branches, and grass clippings from around the outdoor condenser unit; give it 24 inches of clearance on all sides. Wipe down the outdoor coils gently with a garden hose, top to bottom, but do not pressure-wash because you will bend the fins. Test that the condensate drain is flowing by pouring a half cup of bleach into the access port if your unit has one. What to leave to a licensed pro: anything involving refrigerant, electrical components, or the compressor.

When to book your tune-up

The best time to book a Westchester A/C tune-up is late April through mid-May. Book before the first 80-degree day, because after that every HVAC company in Westchester is buried in emergency calls; before Memorial Day weekend, because we get fully booked; and before your annual filter is due. Plitnick's annual A/C service agreement covers the spring tune-up plus priority emergency response throughout the summer. Service-agreement customers get scheduled before non-agreement customers when emergencies hit during heat waves.

Get your Westchester A/C ready before summer

Call Plitnick or use the contact form to schedule your spring A/C tune-up. We are licensed in New York, family-owned and operated since 1977, and we serve every Westchester town from Dobbs Ferry to Yonkers, White Plains, Ardsley, Tarrytown, Irvington, and the surrounding river-town communities. Most service appointments book within five business days. Emergencies get same-day response.