SUFFOLK COUNTY, NY7 days a week · 5 AM–10 PM(631) 871-7778
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A central air system installed by Greentree MechanicalREAL WORK. RIGHT HERE IN SUFFOLK.
The Greentree Mechanical service van

OAKDALE, NY · FAMILY OWNED

Your home.
Our family’s care.

Heating, cooling & plumbing from Dennis Cole and sons. Serving Suffolk County, seven days a week.

Request serviceView our work

5 AM–10 PM daily · (631) 871-7778

4.5 / 5 from 41 Google reviewsWhat neighbors say
THE RIGHT PLACE TO START

What’s going on
at home?

01 / HEATING & HOT WATERNo heat?
Start here.Gas, oil, boilers & hot water →02 / COOLINGNot cooling?
We get it.Central air, repairs & replacements →03 / EVERYTHING ELSESee all
services.Oil tanks, plumbing, maintenance & more →
Boiler-room repipe completed by Greentree MechanicalACTUAL GREENTREE PROJECT / BOILER & HOT WATER

A FAMILY BEHIND THE WORK

Dennis.
Peter. Andrew.

The Cole family works across Suffolk County, from central air and heating calls to boiler, water heater, and oil tank projects.

Meet the familySee the project gallery

SOMETHING NEEDS ATTENTION?

Tell us about the job.

Send the details to the team. They’ll confirm availability and any visit charge before work is scheduled.

Request service

A LOCAL FAMILY. A DIRECT LINE.

Home needs something?
We’re a call away.

(631) 871-7778

Suffolk County only · 5 AM–10 PM, every day

Call GreentreeRequest service