Electrical repairs
Find the cause of a tripping breaker, flickering light or an outlet that stopped working.
Explore electrical repairs →Derry, NH · Electrical repairs & upgrades
Your Local Trusted Derry, NH Electrician
An electrical problem to sort out, a room to improve, or a bigger project to plan. Sylvester Electric serves Derry from Dracut, helping you make practical decisions about repairs, lighting, wiring and electrical upgrades.
Tell us what is happening or what you want to install. Our office confirms the right appointment and any charges.
Family-owned since 1979Serving Derry from DracutClear scope and pricing before you decide
Start with what you need
Electrical help for your Derry home
Get help with an existing fault or plan an installation around the home you have.
Panels & service upgrades
Assess equipment condition, circuit space and capacity before deciding what needs changing.
Explore panels & service upgrades →Home EV charging
Choose a charging location and circuit route that work with your parking and electrical capacity.
Explore home ev charging →Lighting installation
Improve kitchen lighting, brighten an entrance or plan outdoor fixtures around how you use the space.
Explore lighting installation →Standby generators
Decide what you want to keep running, then review sizing, placement and transfer equipment.
Explore standby generators →Outlets & dedicated circuits
Add convenient power and suitable circuits for appliances, a home office or garage equipment.
Explore outlets & dedicated circuits →Wiring & renovations
Coordinate circuit routes, room layouts and access before the walls and ceilings are finished.
Explore wiring & renovations →Smoke & CO alarms
Review age, power source and compatibility before replacing or interconnecting alarms.
Explore smoke & co alarms →Inspection corrections
Share the inspection findings so we can discuss the electrical work your property needs.
Explore inspection corrections →Planning additional capacity? Explore 200 amp service upgrades. Replacing a panel does not automatically increase your service capacity.
Understand the work first
A useful improvement starts with the right scope
A breaker that trips needs diagnosis. A kitchen renovation needs a circuit and lighting plan. A charger or new appliance needs a capacity review. They are different starting points, even when the work involves the same panel.
We look at your existing installation, equipment plans and access through the house before recommending the work. A home's age, neighborhood or appearance does not establish its wiring condition.
You review the recommended scope and pricing before authorizing work.
Get to know Sylvester Electric →Electrical work around Derry
Plan for your property, from the villages to Beaver Lake
Derry Village & East Derry
Renovate with a wiring route in mind
Derry's village areas are part of the town's documented history. If you are updating a village home, decide how the room should work before choosing where the fixtures and outlets will go.
A kitchen remodel, finished attic or earlier addition can change access for new circuits. Share the layout and appliance specifications early so the electrical plan can fit alongside the renovation. We assess the actual installation rather than assuming an older house needs complete rewiring.
Explore Derry's local history →Beaver Lake area
Think beyond the fixture location
For entrance lighting, outdoor outlets or power to a detached building near Beaver Lake, the route from the panel matters as much as where you want the equipment.
Tell us about finished spaces, outdoor access and the intended use. We review the circuit and equipment requirements. Exterior placement can also involve property-specific Town review; confirm that before settling on a location.
Town information about the Beaver Lake area →
Adding charging or backup power?
For an EV charger, start with where you park, the equipment you plan to use and how much charging you need. We assess available capacity and suitable circuit routing. Compatible load management may be an option where the equipment and installation support it.
For a standby generator, identify the loads you want to support, then discuss equipment placement, transfer equipment and the wider installation scope. Fuel work and other trade responsibilities need to be coordinated.
In a condo, apartment or shared building, confirm owner or association approval, parking rights and access to the equipment serving your unit.
Derry permits and inspections
Derry provides a separate electrical permit process alongside its renovation permits. Confirm the steps for your specific work and plan inspection access before the job is closed up.
A service change may also need utility company coordination. Discuss any planned power interruption and restoration responsibilities as part of the scope.
Derry online permits →Town building and inspection information →
A clear next step
Repair appointment or planned-project estimate?
For an existing fault, request a paid diagnostic appointment. For planned lighting, wiring, charging, panel work or a generator, ask about an estimate. Our office explains the appointment type and applicable charges.
- Share your Derry address and describe the problem or project.
- Tell us about equipment details, access and any owner or association authorization.
- Review the proposed work and pricing before authorizing it.
Feedback from Sylvester Electric customers
Hear from homeowners who have worked with our team. Read our Google reviews →
Judy Driscoll
★★★★★Technician arrived on time, was friendly and courteous and explained issue. He repaired the problem quickly and efficiently and I was happy with the cost… not overcharged. I have already recommended the company to my friends and relatives.
elena clamen
★★★★★They installed smoke and carbon monoxide detectors and two light fixtures. They were easy to work with and very professional. The technician was personable and knowledgeable.
Anna Kuperman
★★★★★The team at Sylvester has provided excellent and knowledgeable electrical services. The expertise and care applied to both fixing and installing new electrical wiring has been first rate. Along with the personable electricians, we’ve been impressed by the efficiency and ease of contact with the front end team—from scheduling to reminders/notifications and payment. We recommend Sylvester for top tier, reliable electrical work at a fair price.
Henry Cabrera
★★★★★Absolutely loved working with you guys. You made it out so quickly to resolve a very dangerous and all too common issue with amazing customer service. Mike was great and made sure to walk me through what was going on. Couldn’t be happier with the service.
Christine Matlin
★★★★★Sylvester Electric responded immediately to our urgent situation, while others turned us down. The electrician was knowledgeable, professional, and quickly resolved our issue. Without a doubt, they will be our “go to” electrician going forward.
Before you book
Questions from Derry homeowners
Do you have an office in Derry?
We serve Derry from our Dracut, Massachusetts location. Share your service address and the work you need so our office can confirm the appointment.
Can you help with renovations in East Derry or Derry Village?
Yes. Bring the room layout, appliance details and lighting ideas into the electrical planning early. We assess existing circuits and access through finished spaces. An older house or historic location alone does not establish wiring condition or a need for complete rewiring.
What should I consider for outdoor electrical work near Beaver Lake?
Tell us where the lights or equipment will go and how the circuit could reach that location. We review the installation and outdoor exposure. Confirm any property-specific land-use requirements with the Town before settling on exterior equipment placement; proximity to the lake alone does not tell us what approvals apply.
Does a home EV charger require a service upgrade?
Not always. We assess charging needs, equipment compatibility, circuit routing and available capacity. Compatible load management may be an option. In a shared building, confirm parking rights, owner or association approval and access to the equipment serving your unit.
Is panel replacement the same as a 200 amp service upgrade?
No. A panel replacement changes distribution equipment; a service upgrade increases the approved supply capacity. The scope depends on the existing service and planned loads, and a service change may involve the utility company.
Are electrical permits separate from a renovation permit in Derry?
Derry provides a separate electrical permit process. Confirm the required electrical scope and inspection steps alongside the overall renovation, including any utility company coordination for service work.
Should I request a repair visit or an installation estimate?
For an existing fault, request a paid diagnostic appointment. For planned lighting, wiring, charging, panel work or a generator, ask about an estimate. Our office confirms the appropriate visit and applicable charges.
Can I call about an urgent electrical problem?
Call to describe the problem and check appointment availability. For smoke, fire or immediate danger, leave the area and contact emergency services. Our office confirms availability.
Tell us what your Derry home needs
Call Sylvester Electric or request electrical service online. We will help you choose the next step for your repair or installation.
Based in Dracut · Serving Derry, New Hampshire · View our service area
