Frequently Asked Questions
General Electrical Questions
Do I need a licensed electrician for small electrical projects?
Yes. Even small jobs like outlet replacements or light fixture installs should be handled by a licensed electrician to ensure safety, code compliance, and insurance coverage.
Can you handle both residential and commercial electrical work?
Yes. We’re licensed for both residential and commercial electrical services across New Hampshire and surrounding states.
What should I do if my circuit breaker keeps tripping?
Frequent breaker trips often indicate an overloaded circuit or a wiring issue. Call us to inspect and correct the problem before it becomes a fire hazard.
Do you install whole-home surge protection?
Yes. Surge protection is one of our specialties and is included in our Premium Power Protection plans. It safeguards your entire home against power surges from storms or utility issues.
How often should my home’s electrical system be inspected?
We recommend a professional inspection every 3–5 years, or sooner if you notice flickering lights, tripping breakers, or are planning renovations.
EV Charging Questions
What types of EV chargers do you install?
We install Level 2 chargers for all makes and models, including Tesla, Ford, Rivian, Hyundai, Kia, GM, and more.
How long does it take to charge my EV with a Level 2 charger?
A Level 2 charger typically provides 20–40 miles of range per hour of charging, depending on your vehicle.
Do I need to upgrade my electrical panel for an EV charger?
Not always. We’ll perform a load calculation to determine if your current panel can handle the additional load. If needed, we can upgrade your panel or look at load shed options.
What is bi-directional charging and how does it help me?
Bi-directional charging allows your EV to power your home during outages or peak utility hours. It turns your EV into a backup battery, reducing generator strain and lowering energy costs.
Can I integrate my EV charger with solar panels or a battery system?
Yes. We specialize in smart energy integration, allowing your charger to work with solar panels, battery storage, and even generator systems.
Do EV chargers increase my electric bill?
Yes, but smart charging during off-peak hours or integrating with solar can significantly reduce costs, and driving on electricity is almost always less expensive than gas.
How much does it cost to install an EV charger in NH?
On average, home EV charger installations range from $1,200–$2,500 depending on wiring, panel upgrades, and distance from the electrical panel.
Can two EV chargers run in one home?
Yes. We install dynamic load-sharing chargers that balance power between multiple vehicles without overloading your system.
Generator Questions
What size generator do I need for my home?
It depends on your electrical load. We’ll perform a sizing calculation based on your appliances, HVAC, and household needs to recommend the right system.
Do standby generators start automatically during an outage?
Yes. Standby generators are connected to an automatic transfer switch that detects outages and restores power within seconds.
What fuel options are available for home generators?
Most standby generators run on natural gas or propane. We handle the gas connections as part of our turnkey installation.
How long can a home standby generator run continuously?
With proper fuel supply, most systems can run for days or weeks, depending on size and fuel source.
How much does it cost to install a standby generator in NH?
Costs range from $8,000–$15,000 depending on the generator size, brand, and installation requirements.
What brands of generators do you install?
We install all major brands, including Generac, Kohler, Cummins, and Briggs & Stratton.
Can a generator power my whole house?
Yes. Whole-house generators are sized to handle HVAC, appliances, lights, and essential circuits. We’ll design a system based on your needs.
Should my EV charger be powered by my generator?
Generally no. EV charging draws heavy loads that can strain generators. We recommend separating your EV charger from backup power systems.
Premium Power & Service Plans
What is your Premium Power Protection plan?
It’s our membership program that includes annual inspections, priority service, whole-home surge protection, and discounts on repairs and installations.
Is there a benefit to booking online instead of calling?
Yes. Our online booking tool makes scheduling easy and guarantees you a free consultation slot right away.
Do you offer emergency electrical service?
Yes. Our licensed electricians are available for urgent issues to keep your home and family safe.
Want peace of mind for your home? Book Online today for your free consultation and learn how MJS Electrical Services can help with electrical upgrades, EV charging, and backup generators in New Hampshire.