Security / fire alarm / low voltage permits in New Haven County, CT
262 security / fire alarm / low voltage permits on file in New Haven County — newest filings first, updated daily.
Electrical Service (NEW CONSTRUCTION) - C
727 ELM ST·City of New Haven·Filed July 22, 2026·Issued
Electrical · General contractor · Security / fire alarm / low voltage
Fire Alarm and Detection - C
589 BRIDGEPORT AVE·City of Milford·Filed July 22, 2026·Permit Issued
Security / fire alarm / low voltage
Electrical Wiring (UPGRADE)
192 BISHOP ST·City of New Haven·Filed July 20, 2026·Issued
Electrical · HVAC / heating / cooling · Security / fire alarm / low voltage
Low Voltage / Tele Data - C
227 GROVE ST·City of New Haven·Filed July 17, 2026·Issued
Fire suppression / sprinkler · Security / fire alarm / low voltage
Fire Alarm and Detection - R
624 GULF ST·City of Milford·Filed July 13, 2026·Permit Issued
Security / fire alarm / low voltage · Doors / windows / awnings
Fire Alarm - C
217 DIXWELL AV·City of New Haven·Filed July 10, 2026·Issued
Security / fire alarm / low voltage
Fire Alarm Installation/ Renovation
393 DERBY AVE, ORANGE, CT 06477·Orange·Filed July 9, 2026·Stopped
General contractor · Security / fire alarm / low voltage
Low Voltage
9 DEFCO PARK RD·North Haven·Filed July 9, 2026·Active
Security / fire alarm / low voltage
Fire Alarm - C
737 EDGEWOOD AV·City of New Haven·Filed July 9, 2026·Issued
Security / fire alarm / low voltage · Electrical · HVAC / heating / cooling
Electrical Wiring (UPGRADE) - C
110 WALL ST·City of New Haven·Filed July 7, 2026·Issued
Electrical · Security / fire alarm / low voltage
Low Voltage
455 SACKETT PT RD·North Haven·Filed July 6, 2026·Active
Security / fire alarm / low voltage
Fire Alarm and Detection - R
116 HARVEST LN·City of Milford·Filed July 1, 2026·Permit Issued
Security / fire alarm / low voltage · Electrical
Electrical - C
1 BROADWAY·City of Milford·Filed June 26, 2026·Permit Issued
Electrical · General contractor · HVAC / heating / cooling · Security / fire alarm / low voltage
Fire Alarm - C
469 WHITNEY AV·City of New Haven·Filed June 25, 2026·Issued
Security / fire alarm / low voltage
Fire Alarm and Detection - C
55 NAUGATUCK AVE·City of Milford·Filed June 25, 2026·Permit Issued
Security / fire alarm / low voltage · Fire suppression / sprinkler
Electrical Wiring (UPGRADE) - C
70 YORK SQUARE PL·City of New Haven·Filed June 23, 2026·Issued
Electrical · Security / fire alarm / low voltage
Fire Alarm - C
204 YORK ST·City of New Haven·Filed June 18, 2026·Issued
Security / fire alarm / low voltage
Electrical Wiring (UPGRADE) - C
217 DIXWELL AV·City of New Haven·Filed June 16, 2026·Issued
Electrical · Security / fire alarm / low voltage
Electrical Wiring (UPGRADE) - C
197 YORK ST·City of New Haven·Filed June 16, 2026·Issued
Electrical · General contractor · Security / fire alarm / low voltage
Fire Alarm and Detection - C
0 ORONOQUE RD·City of Milford·Filed June 16, 2026·Permit Issued
Security / fire alarm / low voltage · Fire suppression / sprinkler
Electrical Wiring (NEW) - C
101 COLLEGE ST·City of New Haven·Filed June 10, 2026·Issued
Electrical · General contractor · Security / fire alarm / low voltage
Fire Alarm - C
70 HOWE ST·City of New Haven·Filed June 9, 2026·Issued
Security / fire alarm / low voltage
Rehab-Residential - C
850 GRAND AV·City of New Haven·Filed June 8, 2026·Closed
General contractor · Fire suppression / sprinkler · Security / fire alarm / low voltage
Low Voltage
18 CHURCH ST·North Haven·Filed June 5, 2026·Active
General contractor · Security / fire alarm / low voltage
Electrical Wiring (UPGRADE) - C
333 CEDAR ST·City of New Haven·Filed June 5, 2026·Issued
Electrical · General contractor · Security / fire alarm / low voltage
Electrical - C
945 NORTH ST·City of Milford·Filed June 5, 2026·Permit Issued
Electrical · Security / fire alarm / low voltage
Fire Alarm - C
156 DIXWELL AV·City of New Haven·Filed June 4, 2026·Issued
Security / fire alarm / low voltage
Rehab-Residential - C
244 LOMBARD ST·City of New Haven·Filed June 4, 2026·Issued
General contractor · Doors / windows / awnings · Security / fire alarm / low voltage
Fire Alarm Installation/ Renovation
112 BOSTON POST RD, ORANGE, CT 06477·Orange·Filed June 3, 2026·Active
General contractor · Security / fire alarm / low voltage
Fire Alarm - C
140 HIGH ST·City of New Haven·Filed June 3, 2026·Issued
Security / fire alarm / low voltage
Electrical Wiring (UPGRADE) - C
353 CROWN ST·City of New Haven·Filed June 2, 2026·Issued
Electrical · Security / fire alarm / low voltage
Electrical Wiring (UPGRADE) - C
1156 CHAPEL ST·City of New Haven·Filed June 2, 2026·Issued
Electrical · Security / fire alarm / low voltage
Fire Alarm - C
20 GEORGE ST·City of New Haven·Filed May 28, 2026·Closed
Security / fire alarm / low voltage
Fire Alarm - C
130 BASSETT ST·City of New Haven·Filed May 26, 2026·Issued
Security / fire alarm / low voltage · Electrical · HVAC / heating / cooling
Electrical Wiring (UPGRADE) - C
1450 CHAPEL ST·City of New Haven·Filed May 26, 2026·Issued
Electrical · General contractor · Security / fire alarm / low voltage
Electrical Service (NEW CONSTRUCTION) - C
10 LIBERTY ST·City of New Haven·Filed May 26, 2026·Issued
Electrical · General contractor · Roofing / siding / gutters · Security / fire alarm / low voltage
Fire Alarm Installation/ Renovation
507 BOSTON POST RD, ORANGE, CT 06477·Orange·Filed May 22, 2026·Active
General contractor · Security / fire alarm / low voltage
Fire Alarm - C
10 LIBERTY ST·City of New Haven·Filed May 22, 2026·Issued
Security / fire alarm / low voltage
Fire Alarm Permit
1100 NEW HAVEN RD, Naugatuck, CT 06770·Naugatuck·Filed May 12, 2026·Active
Security / fire alarm / low voltage
Fire Alarm Permit
1419 NEW HAVEN RD, Naugatuck, CT 06770·Naugatuck·Filed May 9, 2026·Active
Security / fire alarm / low voltage
Fire Alarm Permit
11 WILLIAM C RADO SR DR, Naugatuck, CT 06770·Naugatuck·Filed May 9, 2026·Active
Security / fire alarm / low voltage
Rehab-Non-Residential - C
197 YORK ST·City of New Haven·Filed May 8, 2026·Issued
General contractor · Doors / windows / awnings · Masonry / concrete · Security / fire alarm / low voltage
Rehab-Mixed Use - C
1002 CHAPEL ST·City of New Haven·Filed May 5, 2026·Issued
General contractor · Security / fire alarm / low voltage
Rehab-Residential - C
514 NORTON PKWY·City of New Haven·Filed May 5, 2026·Issued
General contractor · Security / fire alarm / low voltage
Fire Alarm and Detection - R
30 CHARLES ST·City of Milford·Filed May 4, 2026·Permit Issued
Security / fire alarm / low voltage
Fire Alarm - C
172 DOVER ST·City of New Haven·Filed May 1, 2026·Closed
Security / fire alarm / low voltage · General contractor
Fire Alarm Permit
20 OLD FIREHOUSE RD, Naugatuck, CT 06770·Naugatuck·Filed April 29, 2026·Active
Security / fire alarm / low voltage
Tenant Fit Out - C
100 GANDO DR·City of New Haven·Filed April 29, 2026·Closed
Fire suppression / sprinkler · General contractor · Security / fire alarm / low voltage
Fire Alarm and Detection - R
819 EAST BROADWAY·City of Milford·Filed April 29, 2026·Permit Issued
Security / fire alarm / low voltage
Rehab-Non-Residential - C
217 DIXWELL AV·City of New Haven·Filed April 28, 2026·Issued
General contractor · Doors / windows / awnings · Fire suppression / sprinkler · Roofing / siding / gutters · Security / fire alarm / low voltage
Townline watches New Haven County town and county permit feeds so new security / fire alarm / low voltage filings reach you the day they land — with owner and applicant contacts on Pro.