AC repair
Furnace & heating
Heat pumps
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Carrier
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GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateTrusted AC Repair for Hempstead Homeowners
When your air conditioner quits on a 92-degree Hempstead afternoon, you don’t need a callback window. You need a technician who shows up, diagnoses the problem, and puts the repair price in writing before touching a single component. Dalton Heating & Air has done exactly that with our AC Repair in Hempstead since 2003, under a standard that most shops don’t bother with: written pricing, a written full-year guarantee on every repair, and a live person answering the phone at (516) 559-4840 around the clock. No voicemail queue. No price that shifts at the door. Same-day AC repair in Hempstead is available when you call before early afternoon, and our background-checked, uniformed technicians arrive inside the stated window or you’ll know why before we’re late.
AC Maintenance
AC Maintenance is preventive service that keeps your cooling system running at its rated efficiency and catches small failures before they become August emergencies. We inspect electrical connections, test capacitors, clean or replace filters, check refrigerant pressures, and measure temperature drop across the coil. Most Hempstead homeowners schedule this once a year, ideally in spring, and our tune-up runs $80 – $200 depending on system age and accessibility. A maintenance visit from Dalton Heating & Air includes a written report of what we found, what we fixed, and what’s likely to need attention before it fails. Our technicians are paid on the clock, not on what they sell you.
Coil and Drain Cleaning
A fouled evaporator coil or a plugged condensate drain is behind a surprising share of Hempstead AC failures. We clean both during maintenance, because a dirty coil can raise energy use by 20 percent and a backed-up drain pan can soak a ceiling. The arithmetic is simple: a $170 maintenance visit prevents a $900 water-damage repair.
Electrical Torque and Amp Draw
Connections loosen over time, and loose connections run hot. We check torque on line-voltage terminals and measure amp draw on the compressor and fan motors, comparing against the data plate. Catching a motor pulling 14 amps when it’s rated for 10 tells us it’s working too hard and will fail early if left alone.
Styles & brands we work with
AC Service
AC Service is the full call, the visit where we send a technician to your Hempstead home to diagnose a cooling problem, quote the fix in writing, and complete the repair in the same trip whenever parts are on the truck. That covers everything from a failed thermostat to a compressor pulling locked-rotor amps. Most AC service calls that end in a repair run $150 – $650, and the price is in your hand before we start, not after. Dalton Heating & Air runs every service call through The Garrison Standard: arrive inside the window, diagnose by the book, price in writing, leave the site clean, and guarantee the work for a full year in writing.
System Diagnosis and Written Quote
Every service call starts with a full diagnostic, not a guess. We test capacitors, contactors, fan motors, refrigerant pressures, and thermostat signals before we tell you what’s wrong. The quote lists the exact part, labor, and total, and it doesn’t change when the work is done.
Same-Trip Repairs
Our trucks carry common parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard units. When the diagnosis points to a capacitor, contactor, fan motor, or control board we stock, the repair happens on that first visit. No second trip, no second trip charge.
AC Unit Repair
AC Unit Repair means fixing the condenser unit outside your Hempstead home, the box with the compressor and fan that dumps heat into the yard. We see failed capacitors, seized fan motors, refrigerant leaks at brazed joints, and contactors welded shut from years of cycling. Repair costs land between $150 and $650 for most problems, and we’ll tell you before we start whether the unit has enough life left to make the repair worth it. Dalton Heating & Air doesn’t push replacement on a unit that has five good years left. We also won’t patch a 22-year-old R-22 system that’s leaking at three joints and tell you it’s fine.
Compressor and Refrigerant Circuit Testing
We test compressor windings with a megohmmeter to separate an electrical failure from a mechanical one. On the refrigerant side, we use an electronic leak detector and nitrogen pressure test to find exactly where the system is losing charge. Guessing at a leak and topping off the gas is not repair, it’s postponement.
Condenser Fan Motor Replacement
A condenser fan motor that’s seized or running slow will trip the thermal overload and leave your house warm by mid-afternoon. We replace motors with the correct horsepower, rotation, and capacitor pairing for your specific unit, then verify amp draw under full load before we pack up. The repair is guaranteed in writing for a full year.
AC Capacitor Replacement
AC Capacitor Replacement is the fix for a part that fails more than any other in Hempstead’s summer heat: the capacitor that gives the compressor and fan motor their starting jolt. A weak capacitor makes the unit hum without starting, run hot, or shut down entirely. Replacement typically runs $150 – $450 depending on whether it’s a single or dual capacitor and how accessible the condenser is. Dalton Heating & Air tests every capacitor with a meter that reads actual microfarads under load, not just a visual inspection. A capacitor can look perfect and be 30 percent out of spec.
Testing a Capacitor Properly
We discharge the capacitor safely, then measure microfarads against the rating printed on the can. A reading 5 percent off spec is a fail. We replace with the same or higher voltage rating, never a lower one, because a lower-rated part will fail early and take the compressor with it.
When a Capacitor Is the Symptom, Not the Problem
Sometimes a bad capacitor is telling you something else: a compressor that’s pulling too much starting current, or a fan motor with worn bearings. We check amp draw after replacement to make sure the new capacitor isn’t covering for a deeper failure that will cost more in six months.
AC Recharge
AC Recharge means measuring the refrigerant level in your Hempstead AC system and adding the correct amount by weight, using gauges and a scale. It’s needed when the system is low on charge, which almost always means there’s a leak. A straightforward recharge with leak check runs $150 – $500 depending on refrigerant type and how much is needed. Dalton Heating & Air does not “top off” a leaking system and leave. We find the leak, quote the repair, and recharge only after the leak is fixed, because pumping fresh refrigerant into a leaking system is throwing money at the problem.
R-410A Versus R-22 Systems
Older Hempstead homes often run R-22 units that are no longer made, which pushes refrigerant costs up. We’ll tell you the refrigerant type, the per-pound cost, and whether a repair makes sense before we open the service valves. If your system leaks repeatedly, we’ll give you the straight cost comparison between another repair and a new heat pump installation.
Leak Detection That Finds the Real Source
We use an electronic sniffer and, when the location is stubborn, a UV dye injected into the system to trace the leak. Common spots on Long Island systems are the evaporator coil, Schrader valves, and brazed joints where vibration has worked the fitting loose. Fixing the joint and recharging is a $300 repair; replacing the coil is a different conversation, and we’ll have it with numbers on paper.
Emergency AC Repair
Emergency AC Repair is what we do when your Hempstead home hits 88 degrees inside at 9 p.m. or 3 a.m., and someone in the house is elderly, asthmatic, or simply can’t sleep. We answer the phone with a live person 24 hours a day, every day, and we run emergency calls nights and weekends. Emergency repair runs the same $150 – $650 range as daytime work for the repair itself; the difference is a trip charge for the off-hours visit, which we’ll tell you over the phone before we dispatch. No overtime surprise on the invoice.
What Counts as a Real Emergency
A dead compressor during a heat wave in Hempstead is a real emergency, especially with kids or older adults in the house. A noisy fan motor you’ve been hearing for three weeks is not; that can wait for a standard visit. We’ll help you sort out which one you have on the phone, honestly, even if the honest answer is “it can wait until morning.”
Night and Weekend Response
When you call at 2 a.m., you get a person, not a prompt. We’ll take your address, ask what the system is doing, and let you know who’s coming and roughly when. Our techs carry a full emergency loadout: capacitors, contactors, fan motors, and common control boards, so there’s a good chance the fix happens that same night.
AC Not Blowing Cold Air
AC Not Blowing Cold Air has about five common causes, and we diagnose them in order of likelihood: a dirty filter starving airflow, a failed capacitor or contactor, low refrigerant from a slow leak, a frozen coil, or a thermostat misreading. The good news is that most of these land in the $150 – $650 range and can be fixed in one visit. The thing to avoid is running the system while it’s blowing warm, because a frozen coil or a laboring compressor gets worse the longer it runs. Call us at (516) 559-4840 and we’ll talk you through the first checks while we dispatch a tech.
Airflow Problems That Look Like Refrigerant Problems
When the filter is clogged, the coil freezes, and a frozen coil blows warm air. Homeowners assume it’s a refrigerant leak and worry about a big bill, when the fix is a $40 filter and a defrost cycle. We check static pressure and airflow before we open the refrigerant circuit, so we fix the cause, not the symptom.
Frozen Coil Protocol
If the indoor coil is a block of ice, we shut the system down and let it thaw while we find the cause: low charge, restricted airflow, or a failed blower. Rushing a service call and recharging a frozen system without thawing it first gives false pressure readings and a repeat failure. We do it in the right order, even if it takes an extra hour.
Brands We Service
Dalton Heating & Air Hempstead services all nine major residential HVAC brands, and our factory training covers the specific failure patterns of each. We’ve replaced enough York condenser fan motors to know which model years had bearing issues from the factory, and we stock the correct OEM-spec capacitor for those units on the truck. Rheem systems from the 2010s have a particular control board failure we can identify from the error code over the phone, which often saves you a diagnostic trip.
Daikin units are common in newer Hempstead construction, and their inverter-driven compressors require a different diagnostic approach than single-stage equipment. Bryant systems share a platform with Carrier, and we carry the common service parts for both. Whether your unit is a Rheem, York, Daikin, Bryant, or any other make, our techs are trained to work on it, and we’ll tell you over the phone if the call is one we can handle. So far, the answer has never been no.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Warm air from the vents while the thermostat says cool. Either the compressor isn’t running or the system is frozen. Running it longer can turn a $200 fix into a $2,000 one, so shut it off and call.
- A humming sound from the condenser that doesn’t turn into the fan starting. That’s a classic bad capacitor or seized motor. The unit is pulling locked-rotor current, and leaving it powered can burn out the compressor windings.
- Ice on the copper line set or the indoor coil. Ice means airflow or charge problems, and the system can’t cool while iced over. Shut it down and let it thaw; we’ll find why it froze.
- A burning or acrid smell from the vents. That can be a failing blower motor or overheated wiring in the air handler. Electrical heat and insulation don’t mix; treat it as urgent.
- The breaker for the AC trips more than once. A compressor or fan motor pulling over-amp will trip a properly-rated breaker. Resetting it and hoping is how you end up replacing a compressor instead of a capacitor.
Our Process, Step by Step
- 1
You call, a person answers. We take your address, ask what the system is doing, and give you a real arrival window. If it’s after hours, we’ll tell you the trip charge on the phone, no games.
- 2
The tech arrives inside the window. Our technician shows up in a Dalton uniform, introduces themselves, and puts on shoe covers inside your Hempstead home. You know who’s coming before they knock.
- 3
Full diagnostic with the meter, not the gut. We test capacitors, contactors, refrigerant pressures, amp draw, and temperature split. The diagnosis is based on measurements, not hunches.
- 4
Written quote before any work. The exact repair, the exact parts, the exact labor, the exact total. If you don’t approve it, we don’t do it. If the job needs a part we don’t stock, we’ll tell you when it arrives.
- 5
The repair, the cleanup, and the written guarantee. We fix it, clean the work area, walk you through what was wrong, and hand you the guarantee in writing. A full year. If it fails in that time, we return at no charge.
How Much Does AC Repair Cost in Hempstead?
A typical AC repair in Hempstead runs $150 – $650 depending on how much AC Repair costs, with the most common jobs landing in the lower half of that range. A capacitor or contactor replacement usually runs $150 – $450. A condenser fan motor runs $250 – $550 depending on horsepower and brand. A refrigerant leak repair with recharge runs $300 – $650 when it’s a simple joint fix, and more when the evaporator coil is the leaker. What moves the price: the part, the refrigerant type, how accessible the unit is, and whether it’s a night or weekend call. What shouldn’t move the price: anything after we hand you the written quote.
The way to avoid overpaying is to get the number before the work starts, in writing, with a company that doesn’t change it. A free estimate from Dalton Heating & Air includes the full diagnostic, the written quote, and the optional repair. You can say no and pay the diagnostic charge. But most Hempstead homeowners approve the quote on the spot, because the price is specific and the guarantee is a full year.
Our Service Area Near Hempstead
Dalton Heating & Air Hempstead covers the surrounding Long Island towns, including Levittown, Freeport, Hicksville, East Meadow, Long Beach, Oceanside, Plainview, Uniondale, Baldwin, Rockville Centre, and Merrick. Response time runs 30 – 90 minutes for most standard calls, and faster in Hempstead proper. If you’re in Levittown or Freeport, we have full coverage there too, with the same written pricing and full-year guarantee. For detailed information, see our AC Repair in Hempstead page. New to us? Start at the home page to see the full scope of our work.
Serving Hempstead, NY - Our Local Coverage Area
We’re based in the Hempstead area and know this community well, and we also provide Uniondale AC Repair. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About AC Repair in Hempstead
AC repair is the diagnosis and correction of any failure that prevents your cooling system from holding set temperature. That includes electrical components like capacitors and contactors, refrigerant leaks and recharges, fan motors, control boards, and thermostats. Dalton Heating & Air performs the diagnostic, quotes the repair in writing, and completes the fix under a full-year written guarantee.
Most common repairs in Hempstead take 60 to 90 minutes once the tech arrives. Jobs that require a part we don’t stock may take a return trip, which we’ll schedule and communicate clearly. The diagnostic itself usually takes 30 to 45 minutes, and you’ll have the written quote in hand before any work begins.
Most repairs run $150 – $650 depending on the part and the system. A capacitor is at the low end, a compressor or evaporator coil at the high end. You’ll get the exact total in writing before we start, and the repair carries a full-year written guarantee. Call (516) 559-4840 for a free estimate on your specific issue.
Yes, we service both Rheem and York, along with Carrier, Trane, Lennox, Goodman, Daikin, Bryant, and American Standard. Our technicians are factory-trained on all nine brands, and our trucks stock common OEM-spec parts for each. If you’re not sure what brand your unit is, we can usually identify it from the model number when you call.
Yes. We answer the phone with a live person 24 hours a day, 7 days a week, and we dispatch emergency calls nights, weekends, and holidays. The repair cost stays in the same $150 – $650 range; off-hours calls add a trip charge we’ll quote you on the phone before we send anyone.
Every repair includes a written one-year guarantee, which is longer than the 30 or 90 days most shops offer. If the repair fails within that year, we return and make it right at no charge. That free second visit is part of The Garrison Standard, written into your service record, not an optional add-on.
Clear a path to the indoor air handler and the outdoor condenser, and put pets in another room if they’re not friendly with strangers. If the system is frozen or tripping the breaker, turn it off before we arrive to prevent further damage. Beyond that, just be ready to show us the thermostat and any notes about when the problem started.
Schedule Your AC Repair Service in Hempstead Today
Call Dalton Heating & Air Hempstead at (516) 559-4840 and talk to a live person right now. We’ll set a real arrival window, quote the diagnostic, and walk you through what to expect. The price goes in writing before we start, and the repair carries a full-year guarantee. If it fails in that year, we come back free. That’s the standard, and it has been since 2003.
Written by Marco Benitez, Owner at Dalton Heating & Air Hempstead, serving Hempstead since 2003.