HVAC / heating / cooling permits in Suffolk County, NY
224 hvac / heating / cooling permits on file in Suffolk County — newest filings first, updated daily.
GAS CONVERSION
7 HARTSDALE ST·Smithtown·Filed July 23, 2026·OPEN
Plumbing / piping · General contractor · HVAC / heating / cooling
COMMERCIAL NEW BUILDING
Middle Country Road·Smithtown·Filed July 23, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling · Roofing / siding / gutters
GAS CONVERSION
10 Woodfield Avenue·Smithtown·Filed July 22, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
Repair of Damage
64 Winnecomac Circle·Smithtown·Filed July 22, 2026·OPEN
Electrical · General contractor · HVAC / heating / cooling
RESIDENTIAL PLUMBING - WATER
65 LAUREL AVENUE·Village of Northport·Filed July 10, 2026·Permit Issued
General contractor · Plumbing / piping · HVAC / heating / cooling
GAS CONVERSION
43 RUTH BLVD·Smithtown·Filed July 9, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
Repair of Damage
69 ASTOR AVE·Smithtown·Filed July 2, 2026·OPEN
Electrical · HVAC / heating / cooling
HVAC
71 Gardiners Bay Dr·ShelterIslandTownNY·Filed June 30, 2026·OPEN
HVAC / heating / cooling · Electrical · Insulation
COMMERCIAL INTERIOR ALTERATIONS
520 Smith Haven Mall·Smithtown·Filed June 29, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
HVAC
15 S Cartwright Rd.·ShelterIslandTownNY·Filed June 26, 2026·OPEN
HVAC / heating / cooling · Carpentry / framing · Electrical · General contractor
GAS CONVERSION
27 Woodland Drive·Smithtown·Filed June 25, 2026·OPEN
Plumbing / piping · General contractor · HVAC / heating / cooling
COMMERCIAL INTERIOR ALTERATIONS
60 Vanderbilt Motor Parkway·Smithtown·Filed June 24, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
SINGLE FAMILY DWELLING
119 GRANDVIEW LA·Smithtown·Filed June 24, 2026·OPEN
Electrical · General contractor · HVAC / heating / cooling
GAS CONVERSION
12 Stone Edge Lane·Smithtown·Filed June 19, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
COMMERCIAL INTERIOR ALTERATIONS
535 North Country Road·Smithtown·Filed June 18, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
HVAC
8 E Brander Pkwy·ShelterIslandTownNY·Filed June 18, 2026·OPEN
HVAC / heating / cooling · Carpentry / framing · Electrical
GAS CONVERSION
18 NIMITZ RD·Smithtown·Filed June 15, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
RESIDENTIAL ADDITION
36 FALCON CT·Smithtown·Filed June 11, 2026·CLOSED
General contractor · Electrical · HVAC / heating / cooling
PLUMBING ONLY
714 Smithtown Bypass·Smithtown·Filed June 11, 2026·OPEN
Plumbing / piping · Electrical · HVAC / heating / cooling · Roofing / siding / gutters
PLUMBING ONLY
425 Rte 347 ( Smithtown Bypass )·Smithtown·Filed June 11, 2026·OPEN
Plumbing / piping · Electrical · HVAC / heating / cooling · Roofing / siding / gutters
COMMERCIAL NEW BUILDING
38 Vanderbilt Motor Parkway·Smithtown·Filed June 10, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling · Masonry / concrete
RESIDENTIAL INTERIOR ALTERATIONS
123 Hayrick Lane·Smithtown·Filed June 9, 2026·OPEN
General contractor · Carpentry / framing · Electrical · HVAC / heating / cooling
PLUMBING ONLY
34 ROSE CT·Smithtown·Filed June 8, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
RESIDENTIAL ADDITION
106 Glenrich Dr·Smithtown·Filed June 5, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
COMMERCIAL NEW BUILDING
350 Old Northport Rd·Smithtown·Filed June 5, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
RESIDENTIAL ADDITION
4 SHIRLEY CT·Smithtown·Filed June 3, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling · Masonry / concrete
RESIDENTIAL ADDITION
61 Grassy Pond Drive·Smithtown·Filed June 2, 2026·OPEN
General contractor · Carpentry / framing · Electrical · HVAC / heating / cooling
GAS CONVERSION
31 DOLLY DR·Smithtown·Filed May 29, 2026·OPEN
Plumbing / piping · HVAC / heating / cooling
GAS CONVERSION
51 WYANDANCH BLV·Smithtown·Filed May 29, 2026·OPEN
Plumbing / piping · General contractor · HVAC / heating / cooling
SINGLE FAMILY DWELLING
7 SALLY'S PATH·Smithtown·Filed May 29, 2026·OPEN
Carpentry / framing · Electrical · General contractor · HVAC / heating / cooling
MISC
3 Terry Drive·ShelterIslandTownNY·Filed May 28, 2026·CC
Electrical · HVAC / heating / cooling
RESIDENTIAL ADDITION
27 Violet Lane·Smithtown·Filed May 27, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
RESIDENTIAL PLUMBING - GAS
20 FRANSAL COURT·Village of Northport·Filed May 21, 2026·Certificate of Completion
General contractor · Plumbing / piping · HVAC / heating / cooling
COMMERCIAL INTERIOR ALTERATIONS
520 Smith Haven Mall·Smithtown·Filed May 20, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
COMMERCIAL PLUMBING WATER
139 BAYVIEW AVENUE·Village of Northport·Filed May 19, 2026·Permit Issued
General contractor · Plumbing / piping · HVAC / heating / cooling
HVAC
10 West Main Street·Smithtown·Filed May 18, 2026·OPEN
HVAC / heating / cooling · Electrical · Roofing / siding / gutters
RESIDENTIAL INTERIOR ALTERATIONS
53 BOBANN DR·Smithtown·Filed May 15, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
IN GROUND SWIMMING POOL
8 Marcella Ct·Smithtown·Filed May 14, 2026·OPEN
Pool installation / service · Electrical · Fencing · HVAC / heating / cooling
RESIDENTIAL ADDITION
54 Peppermint Road·Smithtown·Filed May 14, 2026·OPEN
General contractor · Carpentry / framing · Electrical · HVAC / heating / cooling · Plumbing / piping
RESIDENTIAL ADDITION
3 HILL RD·Smithtown·Filed May 13, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
SITE WORK
174 Main Street·Smithtown·Filed May 13, 2026·OPEN
Electrical · HVAC / heating / cooling
GAS CONVERSION
112 Fifty Acre Rd·Smithtown·Filed May 11, 2026·OPEN
Plumbing / piping · General contractor · HVAC / heating / cooling
RESIDENTIAL INTERIOR ALTERATIONS
16 Melody Lane·Smithtown·Filed May 11, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
COMMERCIAL INTERIOR ALTERATIONS
102 W. Main Street·Smithtown·Filed May 11, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
Repair of Damage
112 Broadview Avenue·Smithtown·Filed May 8, 2026·OPEN
Carpentry / framing · Electrical · HVAC / heating / cooling
COMMERCIAL NEW BUILDING
395 Oser Avenue·Smithtown·Filed May 8, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling · Roofing / siding / gutters
GAS CONVERSION
6 LOWER RD·Smithtown·Filed May 7, 2026·CLOSED
Plumbing / piping · HVAC / heating / cooling
GAS CONVERSION
7 Larsen Ave.·Smithtown·Filed May 5, 2026·CLOSED
Plumbing / piping · HVAC / heating / cooling
RESIDENTIAL ADDITION
294 SECOND AVE·Smithtown·Filed May 4, 2026·OPEN
General contractor · Electrical · HVAC / heating / cooling
RESIDENTIAL INTERIOR ALTERATIONS
10 Mc Arthur Lane·Smithtown·Filed May 1, 2026·OPEN
General contractor · Demolition · Electrical · HVAC / heating / cooling
Townline watches Suffolk County town and county permit feeds so new hvac / heating / cooling filings reach you the day they land — with owner and applicant contacts on Pro.