Home / Syosset, NY
HVAC Services in Syosset, NY 11791
Heating and cooling for Syosset’s ranches, splits and larger colonials – multi-zone comfort, second-floor cooling and high-efficiency upgrades.
Local homesServicesWhere we workCostFAQ
Syosset mixes 1950s–60s ranches and splits with larger colonials and newer construction. Bigger homes bring bigger comfort challenges: second floors that won’t cool, rooms far from the equipment, and systems sized for a house before it was expanded.
Syosset Homes and Their Heating and Cooling
- Hot second floors – single-zone systems and attic ductwork often leave upstairs bedrooms warm in summer
- Multi-zone systems – larger colonials usually need separate zones or separate systems for each floor
- Expansions and renovations – additions, finished basements and converted attics often outgrow the original system
- High-efficiency upgrades – heat pumps and variable-speed equipment can improve comfort as much as efficiency (see heat pumps)
We size replacements with a Manual J load calculation so a bigger house gets the right equipment in the right places – not just the biggest unit that fits.
HVAC Services We Provide in Syosset
- Central AC repair and replacement – including multi-zone and multi-system homes
- Ductless mini-splits for upstairs bedrooms, additions and finished spaces
- Heat pump installation – ducted and ductless
- Furnace and heating repair
- Boiler service for hot-water and steam systems
Where We Work in Syosset
We cover Syosset (ZIP 11791), including the neighborhoods around the Syosset LIRR station and along Jericho Turnpike. Syosset is a short drive north of Hicksville.
What Syosset Homeowners Pay
Installed prices on Long Island typically run $7,000–$17,000 for a central AC replacement on existing ductwork, $14,000–$28,000+ for a ductless system depending on zones, and $14,000–$25,000 for a full system or heat pump conversion. See HVAC installation cost for what drives the number – we give you a firm, written price after a walkthrough.
Syosset HVAC FAQ
Why is the second floor of my Syosset home always warmer?
Heat rises, attic ductwork gains heat in summer, and one thermostat can’t satisfy two floors. Balancing, zoning, a second system or ductless heads upstairs are the usual fixes – we’ll recommend the one that fits your ductwork and budget.
Do larger homes need two AC systems?
Many do. A two-story colonial is often better served by one system per floor, or a zoned system, than by one oversized unit.
Can ductless mini-splits work alongside my central air?
Yes. Adding a ductless head to a room the central system struggles with is a common, cost-effective fix.
How a Service Call Works
No call-center runaround and no surprise invoices. Here’s exactly what happens when you call us.
Call or text us
Reach us at (516) 930-5483 any time. Tell us what’s happening and we’ll give you a realistic arrival window.
We find the real problem
A licensed technician tests your system and shows you what is wrong – in plain English.
You approve the price
You get a clear, upfront price before any work starts. Nothing happens without your OK.
It gets done right
We complete the repair or installation, test everything and walk you through what we did.
Get a Straight Answer in Syosset
Call or text (516) 930-5483, or email cs@hicksvillehvac.com. We’re licensed, insured and local – and we’ll tell you what’s actually wrong before we touch anything.