Massachusetts Commercial Electrical Inspection Checklist
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A commercial space can look move-in ready while its electrical system needs expensive work. Before you sign, a commercial electrical inspection can uncover safety concerns, capacity limits, and repairs that belong in lease negotiations.
Your strongest protection is written documentation paired with a clear agreement on who handles corrections. Use this checklist to prepare for a Massachusetts-licensed electrician's assessment, then resolve the findings with your landlord before committing.
Separate Massachusetts Requirements From Pre-Lease Due Diligence
A private inspection helps you evaluate the property. Municipal inspections address permitted work. These reviews have different purposes, and neither guarantees that a space supports your proposed business.
Confirm the applicable electrical code
As of October 2026, Massachusetts uses 527 CMR 12.00, based on NFPA 70, the 2026 National Electrical Code, with state amendments. The edition applies to installations with permits granted after April 24, 2026.
Older installations may fall under earlier editions. A new lease alone doesn't mean every existing circuit requires replacement to meet the latest code.
However, alterations, unsafe conditions, and changes in use can affect the required work. Have your electrician confirm the applicable provisions with the municipality's Inspector of Wires.
Check permits separately from the lease
New circuits, rewiring, service upgrades, and panel replacements commonly require electrical permits and inspections. Don't assume a general contractor's building permit covers electrical work.
Confirm who will apply, communicate with the inspector, and arrange required inspections. Covered wiring must receive inspection before concealment, so scheduling matters before walls close.
Sirois Electric's guidance on Massachusetts electrical permit requirements can help you prepare these questions. A pre-lease assessment is recommended due diligence, not a blanket statewide inspection requirement triggered by every commercial lease.
Gather Records and Define the Inspection Scope
Arrange access with the landlord before booking the assessment. Electrical rooms, roof equipment, basements, and shared service areas may sit outside your proposed suite.
Request the building's electrical history
Ask for electrical permits, final inspection records, panel schedules, available drawings, and documentation of previous service upgrades. Also request records of recurring breaker trips, water damage, outages, and prior repairs.
These records help the electrician compare the installed system with documented work. Missing paperwork deserves investigation, but it doesn't automatically prove that an installation violates code.
Check that records identify your suite and its equipment. Approval for a previous tenant's work doesn't establish that your planned operation has enough power or the necessary approvals.
Hire a licensed electrician for the assessment
Use a Massachusetts-licensed electrician familiar with commercial properties and local inspection procedures. Ask what the assessment includes and what access or shutdowns it requires.
Sirois Electric offers commercial electrical inspection services for businesses in Metro and Greater Boston. Request a written scope covering accessible wiring, panels, protective devices, and equipment connections.
Agree on testing limits beforehand. A visual survey cannot establish the condition of concealed wiring, and specialized testing may require separate authorization. Tenants shouldn't remove panel covers, open electrical equipment, or touch energized components.
Commercial Electrical Inspection Checklist: Capacity and Wiring
Start with the electrical system's ability to support your business. A working outlet doesn't establish that the building can handle your equipment at peak demand.
Verify service, feeders, and panel capacity
Give the electrician equipment specifications for HVAC, refrigeration, cooking appliances, machinery, and other major loads. Nameplate information matters because equipment requires compatible voltage, phase, and circuit protection.
Ask the electrician to evaluate the service, suite feeders, and relevant panels. Empty breaker spaces alone don't establish available capacity; load calculations and existing demand matter.
Confirm whether your suite has a dedicated meter and feeder. In multi-tenant buildings, shared equipment can complicate billing, shutdowns, and future expansion.
The assessment should also identify damaged enclosures, corrosion, overheating evidence, unsuitable breaker arrangements, and unclear circuit labels. Ask whether required working space and access remain available without moving stored inventory.
Review wiring, grounding, and connections
Have the electrician check accessible wiring methods, junction boxes, equipment connections, and grounding and bonding. Covered boxes, unsupported wiring, damaged insulation, and improvised connections deserve attention.
Also identify abandoned wiring and previous alterations where visible. An older office, restaurant, or converted mill building may contain changes from several tenants.
Ask the electrician to record what requires correction and what needs further investigation. Distinguish an observed hazard from a recommended improvement or a concealed condition that couldn't be evaluated.
A report that excludes the shared electrical room cannot establish the condition or capacity of the equipment feeding your suite.
For a restaurant, include equipment near water, heat, and grease. For a workshop, review machinery disconnects and connections alongside the general wiring.
Check Outlets, Lighting, and Life-Safety Systems
Your electrician should review everyday electrical features and emergency systems. Coordinate shared life-safety equipment with the landlord and the appropriate service providers.
Inspect everyday devices and lighting
Report cracked receptacles, loose plugs, damaged cords, flickering lights, unusual buzzing, and scorch marks. Burning odors or shocks require immediate attention; don't continue using affected equipment.
Ask the electrician to evaluate receptacle placement and required ground-fault protection for the actual location and use. Kitchens, wet areas, and outdoor equipment deserve close review.
Identify extension cords or power strips supporting permanent operations. These arrangements may reveal missing circuits or poorly planned outlet locations.
Review general lighting, switches, and controls against your layout. Moving partitions or shelving can change lighting needs, while alterations may bring applicable energy-code requirements into the project.
Review emergency lighting and alarms
Request test and maintenance records for exit signs, emergency lighting, fire alarms, and backup power equipment where present. Have qualified personnel verify operation and document deficiencies.
Massachusetts' fire code uses NFPA 1, 2021 edition, with state amendments. Under M.G.L. c. 148, § 27A, owners must maintain existing fire alarm and sprinkler systems unless the Head of the Fire Department gives written permission to disconnect them.
Confirm applicable testing and approval requirements with the local fire department. Don't assume one inspection interval applies to every system.
Establish who maintains shared systems and who receives alarm trouble notifications after hours.
Match the Property to Your Planned Tenant Fit-Out
An electrical system that supported an office may need substantial changes for a restaurant or retail operation. Evaluate the proposed business, not merely the previous tenant's arrangement.
Provide your electrician with the floor plan, equipment schedule, and expected expansion needs. Include exterior signs, HVAC changes, kitchen equipment, and specialty machinery.
Then ask for a defined upgrade scope. Separate work needed for safe occupancy from optional improvements and equipment you can defer.
Confirm your proposed use with the municipal building department. A prior tenant's approval doesn't necessarily cover your business, and a new certificate of occupancy isn't automatically required for every lease.
Sirois Electric's commercial tenant fit-out electrical requirements can help frame early coordination among the landlord, designer, contractor, and electrician.
If additional utility capacity is necessary, identify who coordinates that work and how it affects your opening date. Obtain written estimates covering repairs, permits, and testing. Municipal fees are separate from the contractor's assessment or construction charges.
Document Findings and Negotiate Repair Responsibility
The inspection becomes useful when its findings change the agreement. Resolve known electrical issues before signing rather than relying on a promise to handle them later.
Turn observations into a repair schedule
Request dated photographs, equipment locations, circuit identifiers where available, and a written description of each finding. The report should distinguish immediate hazards, further testing, required corrections, and recommended upgrades.
For every proposed repair, identify the scope, responsible party, completion date, and evidence of completion. Where work requires permits, include the relevant inspection sign-offs.
Also record limitations, such as inaccessible equipment or concealed wiring. Don't let an unresolved condition disappear because the report couldn't evaluate it.
Put cost and access obligations in writing
Commercial leases vary, so don't assume the landlord pays for every base-building problem or the tenant pays for every alteration. Have your attorney review the allocation of responsibility.
Use the findings to negotiate these items.
| Issue | Agreement to document |
|---|---|
| Existing defects | Who pays and when repairs must finish |
| Added capacity | Who funds service, feeder, or panel upgrades |
| Shared equipment | Who controls access and coordinates shutdowns |
| Completion delays | What happens if electrical work delays occupancy |
The written agreement should connect the repair scope to the lease's delivery conditions.
Include after-hours access and authorization for work in common areas. If repairs remain incomplete at signing, have counsel address appropriate protections rather than relying on verbal assurances.
Agree on who verifies completion. A landlord's invoice documents payment, but it doesn't establish that all specified repairs passed required inspections.
Use the Findings Before You Commit
Keep the final review focused on unresolved risks and responsibilities.
- Obtain the written inspection report and identify anything the electrician couldn't assess.
- Compare available capacity with your equipment list and proposed fit-out.
- Confirm permitting and occupancy questions with the appropriate municipal offices.
- Obtain repair estimates and negotiate responsibility, access, deadlines, and completion records.
- Have your attorney incorporate the agreed terms into the lease before signing.
Once repairs finish, retain the report, permits, sign-offs, updated panel schedules, and maintenance instructions. These documents establish a useful baseline for later troubleshooting and alterations.
Plan ongoing maintenance as well. Sirois Electric's commercial electrical maintenance checklist can help organize inspections and records after move-in.
If significant questions remain, request further evaluation before making an irreversible commitment. A rushed opening date shouldn't replace a clear understanding of the property's electrical condition.
Sign With Electrical Conditions Clearly Defined
A move-in-ready appearance tells you little about electrical capacity, concealed problems, or unfinished approvals. A licensed electrician's assessment gives you a stronger basis for evaluating the space.
The most useful outcome is a documented repair agreement that assigns costs, deadlines, access, and verification. Before signing, make sure the property's electrical condition and the landlord's commitments match what your business needs to open safely.
