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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon23
    Verified electrical services reviews

Top-Rated Electricians in Theresa - Updated Nov 2026

Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
372
)
Lightning Protection - Install or Repair

Serving Theresa, NY and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"WB Lightning Rods did an excellent job installing lightening rods on our home. The owner stayed onsite the entire time to supervise the work. He took extra care to plan the rod and cable placement to ensure the proper protection and retain the aesthetics of our home. His crew were knowledgeable, polite, neat and efficient. We could not be more pleased with the results."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
130 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Hurricane Home Solutions, Inc.
Hurricane Home Solutions, Inc.
4.6(
245
)
Fixed Generator - Install

Serving Theresa, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Great crew of installers. Kevin did fantastic install on all electric systems. He never stopped for over 7 hours!! Rob and Riley did not stop working till job was done. Nice assistance from Al. on gas and electric line install. Suggestion: someone should review manuals with customer. Team did demonstrate start up of generator."
Champion Power Equipment Logo
8.5kW Side Profile
8.5kW Front Profile
Champion Automatic Transfer Switch
Cummins Logo

+9

Response time11 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for NYTRIC Electrical Contractors, LLC
NYTRIC Electrical Contractors, LLC
5.0(
3
)
Ceiling Fan - InstallElectrical Switches, Outlets & Fixtures - Install or RepairElectrical Switches, Outlets & Fixtures - Install or Repair - For Business+9 more

Serving Theresa, NY and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

NYTRIC Electrical Contractors, LLC, is Watertown New York's premier electrical contractor. With decades of combined experience, you can rest assured that we will get the job done to your exact specifications the first time, on time, every time. Call today, and find out first hand how world class our workmanship truly is!

Whole House Generator
Whole House Generator
Whole House Generator
Response time10 mins
Recommended by100%of homeowners
Wise Check Electric
5.0(
1
)
Electrical Switches, Outlets & Fixtures - Install or RepairElectrical Wiring or Panel UpgradeElectrical for Home Addition or Remodel - Install+2 more

Serving Theresa, NY and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

We have over 11 years of experience in the electric business. Here at Wise Check Electric, we pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your task or project. We look forward to earning your business!

Recommended by100%of homeowners
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Electrical FAQs, answered by experts

Yes, the majority of appliances that run at 240v will work with a 220v outlet, but will often run slower and may have a slight delay in turning on. This could also cause long term damage to the appliance being used, so it’s recommended to always use the correct voltage for your appliance and upgrade to a 240v outlet if needed.

If there isn’t a C-wire on your thermostat, you can repurpose the G-wire. The G-wire controls the fan independently of the other controls on your thermostat, so the fan-only function won’t work if you decide to go this route.

It can be safe to buy or live in a house with knob and tube (K&T) wiring, but only if the system is in good condition, functional, and has been thoroughly inspected and approved by a licensed electrician. Never purchase a home with K&T wiring without getting a professional electrical inspection first.

Key considerations include:

  • Safety and Condition: An inspector will verify that the wiring is safe and has not deteriorated. Over time, the insulation can wear away, leaving exposed wires that pose a significant fire or shock hazard.

  • System Capacity: The electrical service should be at least 60 amps. However, even at this capacity, K&T systems often struggle to handle the demands of modern appliances and electronics.

  • Lack of Grounding: Knob and tube wiring is an ungrounded system, which is a safety concern for many modern devices.

  • Ongoing Maintenance: If you live in a home with K&T wiring, it's recommended to have it inspected by an electrician every one to two years to ensure it remains in safe working order.

Ultimately, any inspection or modification of a knob and tube system should always be performed by a certified professional.

With AC wiring, which is the kind most likely you’ll find at home, the black wire is “hot,” and the white is “neutral.” The bare or green wire is considered the safety ground wire. If you encounter DC wiring, it’s relatively easy to tell positive or negative wires apart. red wires are used to indicate positive voltage and black wires indicate negative voltage.

Yes, the National Electric Code (NEC) requires at least one GFCI outlet in each sectioned-off portion of an unfinished basement, partly to ensure a power source is available for a sump pump in case of flooding. If you install multiple outlets in your unfinished basement, all of them must be GFCI-protected. For finished basements, standard outlets are generally permitted, but at least one GFCI outlet is still required per circuit. Keep in mind that local municipalities may have additional codes, so it's best to consult a licensed electrician to ensure your home is fully compliant.

The Theresa, NY homeowners’ guide to electrical services

From average costs to expert advice, get all the answers you need to get your job done.