Former Stan Gelber & Sons customers

Your HVAC company is gone. We're still here.

Tempco is a family-owned Long Island HVAC company, in business since 1985. If you were a Stan Gelber & Sons customer and you're not sure who to call now, we'll come take a look. No contract, no pressure, no obligation.

★★★★★4.8106 reviews on Google
✓ 40+ years on Long Island✓ 24/7 emergency service✓ Family-owned, local
Tempco service vans on a Long Island driveway

Schedule your free consultation

A real Tempco team member will call you back within 1 business hour.

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Why people are calling us

You shouldn't have to start from scratch.

If you had a service contract or maintenance plan with Stan Gelber & Sons, you don't have to scramble for a new provider. Tempco has been doing HVAC work on Long Island since 1985 — same family, same neighborhoods, same level of service. Here's what to expect.

Local techs you'll recognize

Same trucks, same faces, same neighborhood. Not a call-center routing system or a national chain.

An honest assessment, free

A Tempco tech will walk through your system and tell you what's actually wrong — and what isn't. No upsell ambush.

On your timeline

Maintenance plans and service contracts are available, but only when you're ready. No pressure on the first visit.

What we do

Full-service HVAC for homes and businesses.

Whatever your previous provider handled, Tempco handles too. Across Nassau and the North Shore.

Heating repair, maintenance, replacement
Cooling and central air service
Annual maintenance plans
Service contracts (residential)
New system installation
Commercial HVAC
Heat pumps and ductless mini-splits
24/7 emergency response

What makes us different

Family-run. Locally accountable.

Tempco was founded on Long Island in 1985 and is still owned and run by the same family — the opposite of the private-equity rollup that closed Stan Gelber & Sons. When you call us, you're working with the people whose name is on the door.

  • 1

    One number. Real people.

    Call 516-674-5100 and a person picks up — usually on the first or second ring.

  • 2

    Decades of Long Island know-how.

    We've seen every type of system in every type of home in Nassau. Old or new, oil or gas, basement or attic.

  • 3

    No-pressure transitions.

    Switch when you're ready. Not when a salesperson tells you to.

24/7

Need help right now?

If your system is down, call us — we run 24/7 emergency service across Nassau and the North Shore.

516-674-5100
Tap to call · Available 24/7
Or schedule a callback →

Service area

Nassau County and the North Shore.

A few of the towns we serve. If you don't see yours, call us — we likely cover you.

ManhassetGreat NeckPort WashingtonRoslynOld WestburySyossetGlen CoveLocust ValleyOyster BayWoodburyWestburyUpper Brookville

Let's get your system in good hands.

Free, no-obligation consultation. Real local techs. Same family running the place since 1985.

Independent business notice: Tempco Inc. is an independent, family-owned HVAC company that has served Long Island since 1985. Tempco is not affiliated with, endorsed by, sponsored by, or a successor to Stan Gelber & Sons or any other HVAC provider. Any references to Stan Gelber & Sons on this page are factual and made under nominative fair use.