Tempco is a family-owned Long Island HVAC company, in business since 1985. If your AC is over 20 years old, or you're tired of pouring money into repairs, we'll come take an honest look. One thing most people don't know: PSEG pays a $4,000 rebate on a heat pump and nothing on a cooling-only replacement.
On a single-system house that usually makes the heat pump the cheaper option, and it heats the house in winter too.
Free in-home estimates.
0% financing available.
No pressure to decide on the spot.

Tell us your town and the age of your system and we will get get back to you ASAP.
Why people are calling us
If your AC is breaking down every season, struggling on the hottest days, or costing more to run than it should — replacing it is usually cheaper than another year of patches. Here's how Tempco handles it.
A Tempco tech walks through your system and tells you what's actually failing — and what isn't. We don't push replacements people don't need.
We size the system to your home, not to what's on the truck. Wrong-sized AC is the #1 reason new installs disappoint.
You get a clear estimate before we start. The price you sign is the price you pay.
Straight pricing
Fair question, and here's a straight answer instead of "it depends." Where you land depends on your home and system, but here's the honest range.
$15,000–$20,000 installed for cooling only. The heat pump version of the same job runs $14,500–$16,000 after the $4,000 PSEG rebate, and it heats the house in winter too. Sized right for your home either way.
$20,000–$30,000. A complete new system with all-new ductwork, done start to finish.
Spread it out instead of paying upfront. We work with PSE&G and major financing programs so a new AC doesn't drain your savings.
Most people assume a heat pump is the expensive upgrade. On a single-system house it is not. PSEG Long Island pays a $4,000 rebate on heat pump conversions and does not pay anything on a cooling-only replacement. That gap is bigger than the price difference between the two systems.
Here are four quotes we wrote this month. Same houses, same crew, same day of work.
| System | Cooling only | Heat pump, after rebate | Difference |
|---|---|---|---|
| 3-ton | $16,500 | $14,500 | $2,000 less |
| 4-ton | $17,000 | $15,500 | $1,500 less |
| 4-ton | $17,100 | $14,900 | $2,200 less |
| 4-ton | $18,200 | $16,000 | $2,200 less |
The heat pump is your central air in summer and it heats the house in winter, off the ductwork you already have. Your existing heating system stays where it is, running your hot water and covering the coldest nights.
The rebate is $4,000 whether you are replacing one system or two. On a larger home needing two systems the heat pump premium is bigger, so the two land closer together, usually within a few hundred dollars either way. Two-system replacements run roughly $31,000 to $39,000. We will show you both numbers for your house before you decide anything.
What we do
From honest assessment to clean install, Tempco handles every step. Across Nassau and the North Shore.
What makes us different
Tempco was founded on Long Island in 1985 and is still owned and run by the same family. When you call us, you're working with the people whose name is on the door — not a sales rep on commission.
Call 516-674-5100 and a person picks up — usually on the first or second ring.
We work with PSE&G and partner with major financing programs so a new AC doesn't have to mean draining your savings.
We install Rheem and other top-tier systems with proper sizing and clean install practices. A new AC should last decades — we install it that way.
If your system is down, call us — we run 24/7 emergency service across Nassau and the North Shore.
516-674-5100Service area
We serve Manhasset, Great Neck, Port Washington, Roslyn, Old Westbury, Syosset, Glen Cove, Locust Valley, Oyster Bay, Woodbury, Westbury, Upper Brookville, Glen Head, Sea Cliff, Plainview, Bayville, Jericho, and Glenwood Landing. If you don't see your town, call us — we likely cover you.
Free, no-obligation in-home estimate. Real local techs. Same family running the place since 1985.
Family-owned and operated since 1985. Licensed and insured. Serving Nassau County and Long Island's North Shore.