Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
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 estimateFast, Reliable AC Installation Across Larchmont
AC installation in Larchmont typically costs between $3,500 and $7,500, depending on whether you’re adding a full central system to existing ductwork or going ductless in a prewar home built before 1940. Our AC Installation team works in Larchmont every week, so we know exactly what these houses demand. Old Tudors, Colonials, and Victorians on Flint Park and Larchmont Avenue present real challenges: tight mechanical spaces, thick plaster walls, and no room for sloppy work. Andre Fuller, who leads our crews, has installed systems in converted coal chutes, third-floor closets, and rooftops within earshot of a neighbor’s bedroom window. Call (838) 213-7827 for a free estimate, and we’ll send a written price before any equipment is ordered.
Why Halden Heating and Air Yonkers Is Larchmont’s Preferred AC Installation Company
We’ve earned our place in Larchmont by doing the work other companies turn down. Tight lots near the Village mean condenser units have to be placed carefully, and the Village of Larchmont has a noise ordinance that actually gets enforced. Homeowners on Larchmont’s tree-lined streets have called us after another company put a rooftop unit too close to a property line and the neighbors complained. We handle permits, placement, and noise compliance from the start, not after the fact.
Every installation carries our 365-Day Done Right Promise in writing. If something isn’t right within a year, we make it right, no bill. Andre Fuller has held crews to that standard since 2004, when Halden Heating and Air began serving Westchester County. The Relay Visibility Guarantee, part of the Relay Home Co. network we’re independently operated under, means you get a live arrival time you can track on your phone, not a four-hour window. Every tech is background-checked and uniformed. And every call is answered by a real person, 24 hours a day, 7 days a week.
Styles & brands we work with







Furnace Installation in Larchmont
Furnace Installation in Larchmont usually means replacing a unit that’s been pushing air (or steam) through a house since before the Eisenhower administration. Many homes here were built between 1900 and 1940, and plenty still have their original radiators, converted to forced-air or paired with a newer system. When we install a furnace in Larchmont, it’s not a generic swap. It’s load-calculated work that accounts for plaster walls, old duct runs, and the humidity that lingers through a coastal summer. A Larchmont furnace install typically falls between $150 and $700 in labor and dispatch for smaller related repairs, with full system work falling into the $3,500 to $7,500 range depending on fuel type and ductwork condition.
Replacing Old Radiators and Converted Systems
Many Larchmont houses run hybrid systems: an old steam boiler tucked in the basement and a newer AC air handler in a converted closet somewhere upstairs. Replacing a furnace in that setup means coordinating the two, sizing the blower correctly, and making sure the static pressure in old ducts doesn’t choke a new system. We do that calculation before we order anything.
High-Efficiency Gas Furnaces for Prewar Homes
If your Larchmont furnace is original to a 1920s or 1930s build, it’s probably running at 60% to 70% efficiency at best. A new high-efficiency condensing unit, properly vented through an old chimney or side wall, can cut fuel bills significantly. We’ll tell you honestly if your existing chimney liner or old ductwork makes a high-efficiency furnace a bad fit before you spend a dime.
HVAC Installation in Larchmont
HVAC Installation in Larchmont is rarely a blank-slate job. Most houses we work in have radiators, old ducts, or no ducts at all, and the work often means routing lines through a converted coal chute that now serves as a utility closet. Central air with existing ductwork runs $3,500 to $7,500 in Larchmont. Ductless mini-splits come in the same range, and high-velocity small-duct systems, which are increasingly common in Larchmont’s older homes where running conventional ducts would mean gutting walls, are also priced at $3,500 to $7,500. A thermostat calibration and setup, included in many installs, runs $80 to $200 if done separately.
Ductless Mini-Splits Where Ductwork Cannot Go
Larchmont’s Victorians and Tudors often leave no room for conventional ductwork without destroying plaster and lath. Mini-splits solve that. A small condenser outside, a slim evaporator inside, and a lineset hidden behind crown molding or down an old chimney chase. They’re also ideal for finished attics and converted coal chute rooms where a central system was never feasible.
High-Velocity Small-Duct Systems for Older Homes
If you want central air throughout a prewar Larchmont home and don’t want bulky ductwork, high-velocity systems use flexible, insulated 2-inch tubing that snakes through walls and floors where standard ducts cannot go. The vents are small, round, and unobtrusive. These systems work well in historic homes where preserving original details matters, and they’re a better humidity solution than window units during Larchmont’s sticky July and August stretches.
Trusted Brands We Service in Larchmont
We install and service Bryant, American Standard, Carrier, and Trane equipment, all of which hold up well in Larchmont’s coastal air. What matters more than the badge is the load calculation behind it. We stock common parts for these brands in our service vehicles, so when we’re in Larchmont and find a bad capacitor or a faulty blower motor on an install, we’re not driving back and forth across Westchester to fetch a part. Larchmont homeowners tell us they appreciate that: one trip, done right, with a written price before work starts.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Larchmont Homes
- Undersized systems from skipped load calculations. Tight mechanical spaces in Larchmont’s prewar homes tempt installers to skip a proper Manual J load calculation and just guess. An undersized system won’t pull enough moisture out of the air during a humid coastal summer, and you’ll feel it in every room.
- Rooftop condenser noise complaints. The Village of Larchmont’s noise ordinance is real, and dense lots mean a rooftop unit too close to a property line will draw neighbor complaints. We verify placement and decibel output before installing, and reposition units that originally went in wrong.
- Converted coal chute closets with no airflow. Many Larchmont homes have old coal chutes turned into utility closets on upper floors. If an air handler goes in there without adequate return air, the blower motor overheats and the evaporator coil freezes. We see this weekly in this exact housing stock.
- Old ductwork that leaks or was never sized for AC. Ducts originally designed for heat only are often too narrow for cooling. A leaky, undersized duct system wastes energy and leaves upstairs rooms warm. Sealing and sizing the existing ducts is standard on our Larchmont installs, not an optional add-on.
Pricing for AC Installation in Larchmont, NY
| Service | Price Range in Larchmont |
|---|---|
| Ductless mini-split installation | $3,500 – $7,500 |
| Central AC installation with existing ductwork | $3,500 – $7,500 |
| High-velocity small-duct system for prewar homes | $3,500 – $7,500 |
| Thermostat calibration and setup | $80 – $200 |
Those are the numbers you’ll see on any written estimate we send from Halden Heating and Air. The spread comes down to system size, ductwork condition, and whether we need to solve an access problem like a third-floor coal chute closet. We don’t change the price at the door. The written estimate is the price, full stop. Every job includes a written guarantee, and if a repair fails within the coverage period, the second visit is free. Call (838) 213-7827 for your Larchmont-specific quote.
We Also Serve Cities Near Larchmont
In addition to our work throughout Larchmont, we handle AC installation in Mamaroneck, New Rochelle, Eastchester, and Pelham. The same pricing, the same written guarantees, and the same local crews apply everywhere in this part of Westchester County. If you’re just over the Larchmont line, you’re still in our service area.
Serving Larchmont, NY - Our Local Coverage Area
We’re based in the Larchmont 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 AC Installation in Larchmont
Yes, and we do it regularly. The two main options in Larchmont are a high-velocity small-duct system, which runs flexible 2-inch tubing through walls without major demolition, or a ductless mini-split system that needs no ductwork at all. Both typically run $3,500 to $7,500 depending on the number of zones and the home’s layout. We’ll survey your house, do a load calculation, and show you written options before you commit. Call (838) 213-7827 to schedule a walkthrough.
We check the Village of Larchmont’s noise ordinance requirements and measure the distance to the nearest property line before we place any rooftop condenser. If a location is too close to a neighbor’s window or outdoor living space, we reposition or specify a quieter unit. Getting this right at installation avoids a complaint, a violation notice, and the cost of moving a unit later.
Sometimes, with careful sizing and airflow planning. We’ve installed air handlers and mini-split evaporators in Larchmont’s converted coal chute closets, including a 1920s Tudor on Larchmont Avenue where the only viable indoor location was a third-floor coal chute closet. The key is verifying static pressure, return air supply, and refrigerant charge before the system runs. If the space can’t move enough air, we’ll tell you, and show you alternatives. Andre Fuller’s crews have handled enough of these to give you a straight answer.
Yes, in most cases the Village of Larchmont requires a building permit for new AC installations, especially rooftop and exterior condenser work. We handle the permit paperwork and inspections as part of the installation. That’s not an extra fee we surprise you with later; it’s built into the written estimate from the start.
For Larchmont’s humid coastal summers, we usually recommend a minimum of 16 SEER2 for central systems, and often higher if you’re replacing an old 10 to 12 SEER system. Higher SEER2 units run longer at lower speeds, which pulls more humidity out of the air, a bigger comfort factor in Larchmont than raw cooling power. We won’t oversell you on a 21 SEER2 unit if a 16 SEER2 unit solves your comfort problem for thousands less. Call (838) 213-7827 and we’ll run the numbers on your actual house.
For AC installation in Larchmont, from a converted coal chute closet to a full central system, call Halden Heating and Air at (838) 213-7827. We’ll give you a written price, a live arrival time you can track, and a one-year Done Right Promise on the work.
Written by Andre Fuller, Owner at Halden Heating and Air Yonkers, serving Larchmont since 2004.