Boston’s older triple-deckers and colonials went up when Federal Pacific and Zinsco were ordinary hardware. Dorchester, Jamaica Plain, Southie, and the streets toward Newton and Quincy are the usual addresses. Castle’s Newton FPE page is written for houses built in that window. Castro’s Woburn page names both brands as the ones inspectors and insurers flag. The insurance letter is usually written somewhere else. The work is governed by Inspectional Services inside the city and, on most Boston bills, by Eversource.
Those two systems do not match. ISD issues the electrical permit. Eversource will not reconnect until the wiring inspector has called in the approval. A helper with a van is not the person who can print that permit or book the disconnect.
What Eversource actually wrote
Start with the Information and Requirements booklet for Eastern Massachusetts. Article 209 is the disconnect rule. When an overhead or underground service has to come down, you contact the New Customer Connect Tech Center. The company wants advance notice and a time both sides agree on. No service will be reconnected until Eversource receives approval from the authority having jurisdiction.
The Eastern Massachusetts underground-service page says the same thing in steps for a residential job under 400 amps. Get a work-request number. Do the work to Eversource standards. Get the municipal wiring inspection. Make sure the inspector has called the approval into Eversource. The published commitment is to energize within five business days of that call, or on a date you both agree, if rights, permits, and customer charges are finished.
That is not a homeowner meter-pull path.
Eversource does not publish a guaranteed power-off hour count. Castro describes about eight hours off on a 200-amp panel day. Sylvester describes a few hours off and one to two weeks of utility scheduling. Those are contractor field notes.
Confirm the logo on the bill. Most Boston addresses are Eversource. Some neighborhoods are National Grid. The ticket is not the same company.
Permits inside Boston and in the nearby cities
Inside the city, start at Inspectional Services. The electrical-permit page is blunt. If you are a homeowner, you must hire a licensed contractor to apply for the permit and complete the work. Homeowners cannot apply. The applicant has to be the contractor doing the work, and the name on the Massachusetts trade license has to match. The file needs a front-and-back copy of a valid license, current liability insurance, and a workers’-compensation affidavit.
Applications run through the ISD portal. After the work, the licensed contractor must be on site for the inspection. Call 617-635-5300 or schedule in the portal. Boston’s service-upgrade page repeats that only a contractor with a valid, non-expired Massachusetts trade license may apply for an Electrical Permit and perform work that installs or replaces electrical services or wiring.
Newton, Brookline, Cambridge, Somerville, Quincy, Woburn, and Stoneham each have their own wiring inspector. A quote that only says “we handle the permit” should name the city on the address.
Massachusetts license lookup is public. Ask for the Master Electrician number and check it on the Board of State Examiners of Electricians before you sign.
Price, without inventing one
Three contractor pages publish installed bands, and they do not match. Castle’s Newton replacement page prices a 100-amp upgrade at $1,500 to $3,000 and a 200-amp upgrade at $2,500 to $5,000, including materials, labor, and permitting. Castro’s Woburn FAQ prices a typical 100-amp to 200-amp upgrade at $2,500 to $4,500. Sylvester’s FPE/Zinsco page prices that brand swap at $2,500 to $4,500, an interior-only 200-amp swap at $2,195 to $3,495, and a full 100-amp to 200-amp service upgrade at $6,200 to $10,500. Those can all be true if they are describing different scopes. We will not average them.
Two shops advertise this work on their own sites and print a number. Castle’s Federal Pacific page names Stab-Lok panels and prints A16191. Castro’s Woburn page names Federal Pacific and Zinsco and prints 24276-A. Castle is based in Norwood and writes Newton as a primary market. Castro lists Stoneham and Greater Boston. They are listed for the panel letter, not as a North Shore directory.
Directory-only shops are omitted. A page that names these brands and does not print a Massachusetts license is a cost source, not a listing. Neither listed shop is affiliated with Panel Letter.
What to hand the carrier
The useful packet is the closed ISD or town electrical permit, the inspection approval Eversource needs before reconnect, an invoice with the Master Electrician number on it, and photos if the letter asks. If your electrician produces a load calculation or panel schedule, send that too. We did not find a carrier page that publishes a single statewide “sticker” form. Ask the agent what they will actually open.
Typical replacement cost
Published Greater Boston bands disagree; we do not invent a midpoint
$1,500 to $3,000
100-amp panel upgrade in Newton, including materials, labor, and permitting
Their Newton panel-replacement page. A 200-amp upgrade is printed separately at $2,500 to $5,000. They also list hourly labor and permit/inspection adders; the bundled bands are the ones we quote.
Source: Castle Electric$2,500 to $5,000
200-amp panel upgrade in Newton
Same Newton replacement page. Printed as a separate line from the 100-amp band.
Source: Castle Electric$2,500 to $4,500
Typical 100-amp to 200-amp upgrade
Woburn FAQ on their own site. Different shop, different band from Castle’s 200-amp line.
Source: Castro Electric$2,500 to $4,500
Federal Pacific / Zinsco replacement in Massachusetts and New Hampshire
Their dedicated FPE/Zinsco page. Same page prices an interior-only 100-amp swap at $1,350 to $2,100, an interior-only 200-amp swap at $2,195 to $3,495, and a 100-amp to 200-amp service upgrade at $6,200 to $10,500. Cost source only. They do not print a license number on that page.
Source: Sylvester Electric
Permit
Who pulls it: Boston’s electrical-permit page is blunt. If you are a homeowner, you must hire a licensed contractor to apply for the permit and complete the work. Homeowners cannot apply. The applicant must be the contractor performing the work, and the name on the Massachusetts trade license must match the applicant. The file needs a front-and-back copy of a valid, non-expired trade license, a current liability-insurance certificate, and a Massachusetts workers’-compensation affidavit. Applications run through the Inspectional Services portal. After the work, the licensed contractor must be on site for the inspection. Boston’s service-upgrade page repeats that only a contractor with a valid, non-expired Massachusetts trade license may apply for an Electrical Permit and perform work that installs or replaces electrical services or wiring.
Newton, Brookline, Cambridge, Somerville, Quincy, Woburn, and Stoneham each have their own wiring inspector. A quote that only says we handle the permit should name the city on the address. Massachusetts electrical licensing is the Board of State Examiners of Electricians. A Master Electrician license is the card that belongs on a Boston electrical permit.
Utility coordination
Eversource for most Boston addresses; National Grid on some neighborhood bills
Who disconnects: Eversource’s Information and Requirements booklet for Eastern Massachusetts (the former NSTAR rules, article 209) says that when disconnecting overhead or underground services you contact the New Customer Connect Tech Center, that the company requires advance notice and a mutually agreed time, and that no service will be reconnected until Eversource receives approval from the authority having jurisdiction. The Eastern Massachusetts underground-service page repeats the sequence for a residential job under 400 amps: get a work-request number, do the work to Eversource standards, obtain the municipal wiring inspection, and make sure the inspector has called the approval into Eversource. Eversource’s published commitment is to energize within five business days of that inspector approval, or on a mutually agreed date, if rights, permits, and customer charges are done. Company-owned meters are not for homeowners to pull.
Outage window: Eversource does not publish a guaranteed power-off hour count for a residential panel swap. Castro describes about an eight-hour outage on a 200-amp panel day. Sylvester describes a few hours off on install day and one to two weeks of utility scheduling. Those are contractor field notes, not an Eversource SLA.
Confirm the logo on the bill. Most Boston addresses are Eversource. Some neighborhoods are National Grid. A like-for-like panel swap still needs the inspector’s call to the utility. A service-size change is a work-order application as well as the ISD (or town) permit.
What to hand the insurer
- Closed Boston ISD or suburban electrical permit
- Passed inspection / wiring-inspector sign-off (the approval Eversource needs before reconnect)
- Invoice showing the Massachusetts Master Electrician license
- Photos of the old and new panel if the carrier’s letter asks for them
- Load calculation or panel schedule if the electrician produced one
Ask your agent for the exact list. Carriers do not publish a single national checklist.
Electricians who advertise this job
A shop is listed only if it advertises Federal Pacific, Zinsco, or insurance-driven panel replacement on its own site and prints a license number there. Trade-association locators already exist. We will not pad this list. Verify the license before you hire.
To get introduced, use the quote form on this page. We do not send you to the shop from here.
Castle Electric
Norwood / Newton, MA
Published license: A16191 (Massachusetts Board of State Examiners of Electricians)
Dedicated Federal Pacific / Stab-Lok replacement page for Newton-area homes, including insurance and inspection language, and Massachusetts Master Electrician License A16191.
Castro Electric
Stoneham / Greater Boston, MA
Published license: 24276-A (Massachusetts Board of State Examiners of Electricians)
Own-site Woburn page that names Federal Pacific and Zinsco replacements for inspector- and insurer-flagged homes, publishes a $2,500 to $4,500 100-to-200-amp band, and prints MA Master Electrician License #24276-A.
How this page was built
Compiled by Panel Letter on 2026-09-09 from the public pages below. If a fact was not on a cited page, it is marked as unverified in the copy. This is a research guide, not a bid.
- Castle Electric, FPE panel replacement in Newton
Dedicated FPE/Stab-Lok page. Prints Massachusetts Master Electrician License A16191.
- Castle Electric, Electrical panel replacement and upgrades in Newton
$1,500 to $3,000 100-amp and $2,500 to $5,000 200-amp bundled bands. Repeats A16191.
- Castro Electric, Licensed electrician in Woburn
FPE/Zinsco FAQ, $2,500 to $4,500 100-to-200-amp band, MA Master Electrician License #24276-A.
- Sylvester Electric, Electrical panel upgrades in Massachusetts and New Hampshire
FPE/Zinsco/Pushmatic advertising and published replacement and service-upgrade bands. Cost source; no license number on the page.
- City of Boston, Electrical Permits
Homeowners cannot apply. Licensed contractor must apply and perform the work. ISD portal. Contractor must be on site for inspection.
- City of Boston, Make an Electrical Service Upgrade
Only a contractor with a valid, non-expired Massachusetts trade license may apply for an Electrical Permit and perform service or wiring work.
- Eversource, Information and Requirements for electric service (Eastern Massachusetts)
Article 209: advance notice to disconnect/reconnect; no reconnect until AHJ approval.
- Eversource, Eastern Massachusetts underground service steps
Work-request number, municipal wiring inspection, inspector calls approval to Eversource, energize within five business days.
- Eversource, Eastern Massachusetts builders and contractors
Official I&R booklet and contractor work-order path for Eastern Massachusetts.
- Massachusetts, Check an Occupational Board license
Official Board of State Examiners of Electricians lookup (ePlace).