Local Tech Support You Can Trust

Serving Southwest NH & Southeast VT with affordable, friendly IT support for homes and small businesses.

What We Can Help You With

We simplify technology for homeowners and small businesses across Southwest NH and Southeast VT. From broken laptops to full network setups, we’re your local IT partner.

Fixing slow or broken computers
Improving Wi-Fi coverage and reliability
Removing viruses and securing devices
Setting up smart home tech or office networks
Backing up important data and recovering files

Why Choose MainStreet IT Service?

We provide reliable, efficient, and secure solutions for homeowners and small businesses looking to streamline their technology. Whether you need help with a simple device setup or a more complex network, we are here to guide you every step of the way.

Affordable solutions tailored to your needs
Friendly, local service with a personal touch
Fast, reliable, and secure IT support
Worry-free solutions when you need it most

Based in Swanzey, NH – proudly serving clients within 25 miles of Keene, including Brattleboro, Peterborough, and surrounding areas.

Ready to Get Started?

Contact us today to find the best IT solutions for your home or business. We're here to help you simplify your tech and improve your productivity.