Seasonal 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.
HVAC Company in Hempstead, NY
Dalton Heating & Air handles HVAC work across Hempstead, NY with written pricing before any work starts and a full-year guarantee on every repair. Hempstead’s mix of older post-war homes, newer construction, and Long Island humidity means systems here run hard from June through September and get pushed again in winter. Call (361) 306-9515 and a live person answers, 24 hours a day.
Why Hempstead Homes Are Different
Hempstead’s housing stock spans a wide range: 1950s ranches and colonials sit next to newer builds, and many older homes still run original ductwork that was sized for heating only. When a homeowner adds central air to those systems, the ducts often underserve the second floor. We see this regularly in neighborhoods around Clinton Street and near Hofstra, where homes from that era share the same layout DNA. The real impact: a properly sized AC unit paired to older ducts still delivers uneven cooling, so part of our job is checking airflow before condemning equipment.
Long Island humidity also changes how systems behave. An air conditioner in Hempstead does two jobs at once: it drops temperature and strips moisture from the air. When the coil runs too warm or the fan speed is set too high, the house feels clammy even at 72 degrees. That is a control and charge issue, not a comfort preference, and it is fixable. Winter is its own animal. Salt air from the south shore works on outdoor condenser coils, and homes near the Hempstead Turnpike corridor tend to accumulate more debris on condensers than quieter side streets off Front Street.
Permitting here is straightforward for most repairs: swapping a capacitor, contactor, or control board does not require a permit. Full system replacements do, and a licensed contractor pulls it and closes it out. If you are in a village within the Town of Hempstead with its own building department, the paperwork goes through that office, not the town. We handle that on replacement jobs.
Our Main Hempstead Services
Most Hempstead homeowners call us first about two things: an air conditioner that stopped cooling in July, or a furnace that will not stay lit in January. Each service below has its own page with local pricing, what the job involves, and what to expect from the first call to the final invoice.
AC Repair in Hempstead
When an air conditioner quits in Hempstead in August, the most common culprits are a failed capacitor, a refrigerant leak at the evaporator coil, or a condenser fan motor that seized. We diagnose these on site, put the price in writing before touching a screwdriver, and stock the common parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard systems. Many Hempstead AC repairs are done same-day because the parts are already on the truck. A refrigerant recharge is not always the fix: a system that is low on refrigerant leaks from somewhere, and adding fluid without finding the leak is money that disappears by next spring. AC Repair in Hempstead explains what we check and what repair costs look like.

Heat Pump Installation in Hempstead
Heat pumps are a practical fit for Hempstead homes that want one system for both cooling and heating, especially in the shoulder seasons of April and October when switching between AC and furnace is overkill. A heat pump installation in this area means a load calculation on the actual square footage and window orientation, not a rule-of-thumb guess. We see older homes around Fulton Avenue and Terrace Avenue where a poorly sized heat pump would short cycle and never hit set temperature on a humid August night. The installation page covers sizing, what the job includes, and why the written proposal stays the written proposal. Heat Pump Installation in Hempstead

Furnace Repair in Hempstead
A furnace that will not fire in a Hempstead February is usually one of three things: a failed igniter, a clogged flame sensor, or a gas valve that is not opening. All three are repairable, and none of them require a new furnace on the spot. When a furnace does need replacing, the decision should be made calmly in October, not in a panic at 9pm on a 12-degree night. We service gas furnaces, oil furnaces, and hydronic systems in Hempstead, and the repair includes a written guarantee: if the fix does not hold for a full year, we return at no charge. Furnace Repair in Hempstead

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hempstead
Our techs are factory-trained on Rheem, York, Daikin, and Bryant, alongside the other major residential brands. We keep common parts for these systems on the trucks, which means many Hempstead repairs finish in one visit instead of waiting on a parts counter. Full details at our brands.
Pricing for HVAC Company in Hempstead, NY
| Service | Typical range in Hempstead |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
Those ranges reflect what most Hempstead jobs actually cost. A capacitor swap lands at the low end. A repair that involves a compressor or a replacement coil climbs toward the top. Age and accessibility move the number too: a furnace wedged into a tight crawlspace near Hempstead Turnpike takes longer than one in an open basement. The written price you approve before we start is the final price. No add-ons at the door, no surprise line items.
Neighborhoods We Serve in Hempstead
Dalton Heating & Air runs calls throughout Hempstead and the surrounding communities. Most repair calls get a same-day or next-day appointment, depending on the time of year and part availability.
- Terrace Avenue area
- Fulton Avenue corridor
- Clinton Street and nearby blocks
- Homes near Hofstra University
- Hempstead Village proper
Service Area – Cities Near Hempstead
Beyond Hempstead, our crews cover the surrounding Nassau County communities and parts of the south shore. We run calls in Freeport, TX, Levittown, NY, Hicksville, NY, and Long Beach, NY with the same written pricing and guarantee on every job.
Serving Hempstead, NY - Our Local Coverage Area
We’re based in the Hempstead area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Hempstead
Most emergency calls in Hempstead get a same-day visit, and live dispatch is available 24/7. In peak summer heat or winter cold, the schedule fills and some calls land next morning. Call (361) 306-9515 and we will give you a straight answer about the window.
Repairs like a capacitor, contactor, or igniter do not require a permit. A full system replacement does, and we pull it and close it out as part of the job. If you live in an incorporated village with its own building department, the permit runs through that office.
Every repair includes a written guarantee for a full year. If the same repair fails inside that window, we return and make it right at no charge. That is the Garrison Standard, and it is not an upsell or a separate purchase.
If your air conditioner quit, your furnace will not light, or you are weighing a heat pump for your Hempstead home, call (361) 306-9515. A live person answers, the estimate is free, and the price is in writing before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hempstead Customers Say
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.







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