top of page

Commercial & Residential Electrical Contractors

Serving NH/MA

Arrow Down

Our Services

Electrical Worker

Electrical Service Upgrades and Repairs

At Gates and Sliz Electric, we offer electrical service upgrades for both commercial and residential clients. Our team of expert electricians will ensure that your electrical system is up to date and functioning properly.

Image by Artem Militonian

Swimming Pools and Hot Tubs

We provide pool electrical services that include grounding, bonding, and heater installation to ensure your pool is safe and up to code. Install a pool heater so you can enjoy your pool all year long.

Image by Patrick Tomasso

Lighting Upgrades

Our Lighting Upgrades service provides you with the opportunity to upgrade your lighting with cost-effective and energy-efficient solutions. We will work with you to make sure that your lighting solution meets your needs and budget.

Image by Zaptec

EV Charging Stations

Our experienced team of electricians can quickly and efficiently install the charger of your choice, making it easy to charge your electric vehicle at home. We are dedicated to providing quality service and ensuring your satisfaction.

Image by Abhijeet Gaikwad

Generators and Transfer Switches

You can rest assured that your home will stay powered in any emergency. Install a generator on your property, as well as a transfer switch, which will let you safely switch between utility power and generator power. 

Surveillance Camera

Monitored Fire and Alarm Systems

Our electricians are experienced in the installation of fire and security systems. We ensure your property and family are protected from the threat of fire and intruders. Our team of experts can install systems to best suit your needs, ensuring your safety and peace of mind.

Electrical Inspectors

About Us

Gates and Sliz Electric is a commercial and residential electrical contractor that takes on projects of all sizes. We specialize in electrical service upgrades, electrical repairs, lighting upgrades, generators, fire alarms, and security systems. Our team of expert electricians are dedicated to providing high quality work and exceptional customer service.


Our Projects


Contact Us


For any inquiries or questions, please call us at 603-892-7539 or fill out the for below:


For any inquiries or questions, please email us at

Get a Quote

bottom of page