Residential & Commercial · Serving all of Massachusetts
Full-service electrical work, done right the first time.
From a single panel upgrade to wiring a warehouse from the ground up, Tier One Electrical handles homes and businesses of every size across Massachusetts.
Falamos Português · Hablamos Español · We speak English · Говорим по-русски · Ми говоримо українською
What we do
One electrical team for every kind of project
Tier One Electrical is a full-service company. Whether it's your home or your business, we handle the job from the first estimate to the final inspection.
Electrical Upgrades
Panel and service upgrades, rewiring, new circuits, lighting and outlets.
Learn more →Full House Renovations
Complete electrical for remodels, so your home is modern from the walls in.
Learn more →EV Chargers
Tesla authorized and certified installation for home and business charging.
Learn more →Generators
Backup power for outages, installed with our trusted HVAC partner.
Learn more →Commercial Projects
From wiring warehouses to ground-up construction, we do it all.
Learn more →Not sure what you need?
Describe your project and we'll recommend the right solution.
Why Tier One
Experienced, licensed and easy to work with
Founded by Robson De Oliveira, who has more than 25 years in the electrical trade, Tier One Electrical brings big-project experience to every job, including the small ones.
Meet our founder →Licensed electricians
Our team is experienced, licensed and works to Massachusetts code.
Homes and businesses
One company for your house, your shop or your new building.
Clear, upfront quotes
You know the scope and the price before work starts.
We speak your language
English, Portuguese, Spanish, Russian and Ukrainian, from estimate to finish.
Serving the entire Massachusetts market
- Greater Boston
- MetroWest
- Worcester County
- North Shore
- South Shore
- Cape Cod & Islands
- Pioneer Valley
- Berkshires
Have a project in mind?
Tell us what you need and we'll get back to you with a free estimate.