Carvalho Electric LLC
Londonderry, NH 03053
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Our Story
Carvalho Electric, LLC has been in business since 2005.
Our main lines of business include: Electrical Contractors.
We are located in the Sandown, New Hampshire area.
What We Do
Commercial Experience
Lighting Retrofits
School / College / University
Animal Hospital / Kennel
Apartments & Condominiums
Auto Dealership / Service
Bank
City / Town Hall
Design Build
Fitness Center
Hospital / Nursing Home
Hotel / Motel
House
Industrial Maintenance
Jail / Prison
Laboratory
Library
Manufacturing Plant
Medical Office
Parking Garage
Parking Lots
Post Office
Restaurant
Retail Store
Sewage / Water Treatment Plant
Storage Facility / Warehouse
Regions & Counties Serviced
- New England
Maine 1
- York
Massachusetts 6
- Bristol
- Essex
- Middlesex
- Norfolk
- Suffolk
- Worcester
New Hampshire 5
- Belknap
- Hillsborough
- Merrimack
- Rockingham
- Strafford
Our CSI Codes
01 51 16 - Temporary Fire Protection
10 01 40 - Operation and Maintenance of Safety Specialties
10 06 40 - Schedules for Safety Specialties
10 40 00.00.01 - Safety Specialties
10 41 13 - Fire Department Plan Cabinets
10 44 13 - Fire Extinguisher Cabinets
10 44 13.53 - Security Fire Extinguisher Cabinets
10 44 16 - Fire Extinguishers
10 44 16.13 - Portable Fire Extinguishers
10 44 16.16 - Wheeled Fire Extinguisher Units
10 44 33 - Fire Blankets and Cabinets
10 44 43 - Fire Extinguisher Accessories
21 01 20 - Operation and Maintenance of Fire-Extinguishing Systems
21 05 13 - Common Motor Requirements for Fire-Suppression Equipment
21 06 20 - Schedules for Fire-Extinguishing Systems
21 06 30 - Schedules for Fire-Suppression Equipment
21 09 00.00.01 - Instrumentation and Control for Fire-Suppression Systems
21 12 13 - Fire-Suppression Hoses and Nozzles
21 12 16 - Fire-Suppression Hose Reels
21 12 19 - Fire-Suppression Hose Racks
21 12 26 - Fire-Suppression Valve and Hose Cabinets
21 20 00.00.01 - Fire-Extinguishing Systems
21 21 16 - Carbon-Dioxide Fire-Extinguishing Equipment
21 24 16 - Dry-Chemical Fire-Extinguishing Equipment
21 41 13 - Pressurized Storage Tanks for Fire-Suppression Water
21 41 29 - Storage Tanks for Fire-Suppression Water Additives
25 05 26 - Grounding and Bonding for Integrated Automation
25 33 00.00.01 - Integrated Automation Instrumentation and Terminal Devices for Fire-Suppression Systems
25 53 00.00.01 - Integrated Automation Control of Fire-Suppression Systems
25 93 00.00.01 - Integrated Automation Control Sequences for Fire-Suppression Systems
26 01 10 - Operation and Maintenance of Medium-Voltage Electrical Distribution
26 01 20 - Operation and Maintenance of Low-Voltage Electrical Distribution
26 06 10 - Schedules for Medium-Voltage Electrical Distribution
26 06 20 - Schedules for Low-Voltage Electrical Distribution
26 06 20.26 - Wiring Device Schedule
26 10 00.00.01 - Medium-Voltage Electrical Distribution
26 18 13 - Medium-Voltage Cutouts
26 20 00.00.01 - Low-Voltage Electrical Distribution
26 21 00.00.01 - Low-Voltage Overhead Electrical Power Systems
26 43 13 - Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits
27 01 10 - Operation and Maintenance of Structured Cabling and Enclosures
27 01 20 - Operation and Maintenance of Data Communications
27 05 13.23 - T1 Services
27 05 13.33 - DSL Services
27 05 13.43 - Cable Services
27 05 26 - Grounding and Bonding for Communications Systems
27 05 28 - Pathways for Communications Systems
27 06 10 - Schedules for Structured Cabling and Enclosures
27 06 20 - Schedules for Data Communications
27 06 30 - Schedules for Voice Communications
27 10 00.00.01 - Structured Cabling
27 11 23 - Communications Cable Management and Ladder Rack
27 13 13.13 - Communications Copper Cable Splicing and Terminations
27 13 23 - Communications Optical Fiber Backbone Cabling
27 13 23.13 - Communications Optical Fiber Splicing and Terminations
27 13 33 - Communications Coaxial Backbone Cabling
27 13 33.13 - Communications Coaxial Splicing and Terminations
27 13 43 - Communications Services Cabling
27 13 43.23 - T1 Services Cabling
27 13 43.33 - DSL Services Cabling
27 13 43.43 - Cable Services Cabling
27 15 00.16 - Voice Communications Horizontal Cabling
27 15 00.19 - Data Communications Horizontal Cabling
27 15 00.49 - Intermediate Frequency/Radio Frequency Communications Horizontal Cabling
27 15 13 - Communications Copper Horizontal Cabling
27 15 23 - Communications Optical Fiber Horizontal Cabling
27 15 33 - Communications Coaxial Horizontal Cabling
27 21 13 - Data Communications Firewalls
28 31 33.26 - Fire Detection and Alarm Interfaces to Intrusion Detection
28 31 43 - Fire Detection Sensors
28 31 46 - Smoke Detection Sensors
28 31 49 - Carbon-Monoxide Detection Sensors
28 31 53.13 - Fire Alarm Pull Stations
28 33 13 - Fuel-Gas Detection and Alarm Control, GUI, and Logic Systems
28 33 23 - Fuel-Gas Detection and Alarm Integrated Audio Evacuation Systems
28 33 33 - Fuel-Gas Detection Sensors
28 34 13 - Fuel-Oil Detection and Alarm Control, GUI, and Logic Systems
28 34 23 - Fuel-Oil Detection and Alarm Integrated Audio Evacuation Systems
28 34 33 - Fuel-Oil Detection Sensors
31 63 29.16 - Cased Drilled Concrete Piers
33 71 36 - Extra-High-Voltage Wiring
33 71 36.13 - Overhead Extra-High-Voltage Wiring
33 71 39 - High-Voltage Wiring
33 71 39.13 - Overhead High-Voltage Wiring
33 71 49 - Medium-Voltage Wiring
33 71 49.13 - Overhead Medium-Voltage Wiring
33 81 23 - Aerial Cable Installation Hardware
33 82 13 - Copper Communications Distribution Cabling
33 82 13.13 - Copper Splicing and Terminations
33 82 23 - Optical Fiber Communications Distribution Cabling
33 82 23.13 - Optical Fiber Splicing and Terminations
33 82 33 - Coaxial Communications Distribution Cabling
33 82 33.13 - Coaxial Splicing and Terminations
34 21 16 - Traction Power Substations
34 21 16.13 - AC Traction Power Substations
34 21 16.16 - DC Traction Power Substations
40 95 33.13 - Cabled Process Control Networks
40 95 33.23 - Fiber Optic Process Control Networks
40 95 33.33 - Wireless Process Control Networks
40 95 73 - Process Control Wiring
Associations & Memberships
BBB (Better Business Bureau)
NFPA (National Fire Protection Assn.)
DBE (Disadvantaged Business Enterprise)
OSHA (Occupational Safety & Health Administration)
US Army Corps Of Engineers
SBA 8(a) (Small Business Administration 8a Certified)
8a
SDB (Small Disadvantaged Business)
U.S. Army Corp.
