E/R Electric

Company Facts

E/R Electric at a Glance

By the numbers

Google rating

4.9out of 5

Customer reviews

155on Google

Rating and review count pulled from Google on September 30, 2026.

What We Like

• 4.9 rating from 155 reviews on its Google Business Profile, read September 28, 2026
• Covers both residential and commercial work, from outlet repairs to full panel replacements
• Based in East Cambridge, close to the older housing stock it mostly works on
• Company states over 25 years of experience and master electrician credentials
• Named service area includes Cambridge, Boston, Somerville, Medford and Arlington

Things to Consider

• Published hours are weekdays only and close by 4 PM, so confirm weekend or after-hours availability before relying on it
• Licensing, insurance and experience claims come from the company's own website and are worth verifying directly
• Social links on the site point to Wix template accounts, so there is little public project imagery to review

Google rating

4.9

Based on 155 Google reviews

Review data updated September 30, 2026

View on Google Maps →

Rating Distribution

• 5 stars99%
• 1 star1%

Old brick, knob and tube leftovers, three-decker conversions and condo associations that need a permit pulled before anyone touches a wall. That is the working environment for an electrician in Cambridge and the surrounding Boston neighbourhoods, and it shapes what a contractor like this one spends its days on. The service list published by E R Electric leans exactly that way: panel upgrades and replacements, lighting installation, outlet, switch and wiring repairs, code corrections and safety inspections, EV charger installation, and emergency repair work for both homes and commercial spaces.

Panel work deserves the most thought before you call. A lot of housing stock in Cambridge, Somerville and the older parts of Boston still runs on 60 or 100 amp service, sometimes with a fuse box or an early breaker panel that no longer has a spare slot. Adding a heat pump, an induction range or a car charger usually forces the question. A panel swap in this market is not purely an electrician's job either, because it involves the local inspectional services department, a permit, and coordination with Eversource for the service drop or meter. Ask how the permit and utility scheduling is handled, who waits for the inspector, and how long the power will be out on the day. Those answers tell you more about a contractor than any slogan on a homepage.

EV chargers are the other growth area, and they are less simple than the marketing suggests. The run from panel to garage or driveway can be long in a Cambridge two-family, load calculations matter when the existing service is already tight, and off-street parking arrangements in dense blocks sometimes mean weatherproof outdoor equipment and a conduit route that has to be agreed with a landlord or trustee. Anyone quoting a charger install without asking about your panel capacity and the distance of the run is guessing.

Who this outfit suits: homeowners and landlords in Cambridge, Somerville, Medford and Arlington who want a licensed local shop for upgrade work and repairs, small commercial tenants fitting out or rewiring a space, and people who need an electrician who understands how the older building stock in these neighbourhoods was originally wired. Who it suits less well: anyone whose problem lands on a Saturday. The published hours are Monday through Thursday 7 AM to 4 PM and Friday to 3 PM, with weekends closed, even though the site promotes emergency and same-day service. If after-hours response is what you are buying, confirm by phone whether a weekend call-out is possible and what the rate is before you have an urgent reason to find out.

On evidence, the rating is the clearest signal available. The Google Business Profile shows 4.9 from 155 reviews as of September 28, 2026. That volume is substantial for a locally owned contractor, and a 4.9 across that many jobs generally points to consistent scheduling and communication rather than one good month. The company describes itself as licensed and insured, holds out master electrician experience of over 25 years, and lists Massachusetts, New Hampshire and Maine licence numbers on its own site. Those are the company's own claims, so ask to see the licence and a current certificate of insurance before work begins, which is standard practice and no imposition on a reputable shop.

Compared with the alternatives around Boston, you are choosing between large regional service companies with dispatchers and marked fleets, and smaller owner-run outfits. The big firms win on after-hours coverage and flat-rate menus. Smaller shops like this one tend to win on price transparency and on having the same person see a job through, which matters when a rewire uncovers something unexpected behind the plaster. The honest trade-off is availability.

A few practical questions worth asking anyone, including E R Electric: is the quote a fixed price or time and materials, does it include the permit fee and inspection, who is responsible if the inspector requires a change, and will the work be performed to current Massachusetts amendments to the NEC. Get the scope in writing. For panel and service work in particular, written scope prevents most of the disputes that arise in this trade.

One small note on the website. The social media links published on it point to Wix's own accounts rather than to any company profile, which is a template oversight rather than anything more, but it means the site is not a reliable place to look for recent project photos. The phone number and email listed there are the better route.

About This Business Profile

Last reviewed

September 2026

Profile last updated

September 30, 2026

Google review data updated

September 30, 2026

Sources checked

Google Business Profile, Company website

Sponsorship status

No commercial relationship