The short version: Massachusetts is unique — it requires BOTH a Home Improvement Contractor (HIC) registration AND a Construction Supervisor License (CSL) for most residential work. HIC covers consumer protection (deposits, written contracts, Guaranty Fund); CSL covers code competence (exams, supervision). Verify each separately at mass.gov. For heat pump rebates, also verify Mass Save approval (three checks total). The MA Guaranty Fund pays up to $10,000 per claim against HIC-registered contractors. Elder Justice Unit prosecutes senior fraud.

Massachusetts: dual-credential, by design

Massachusetts is the only state in our series where most residential contractor work requires two separate state credentials — held by either the same person/business or split between a general contractor (CSL) and their subcontractors (HIC). The two cover different things:

CredentialIssuerCovers
HIC (Home Improvement Contractor)Office of Consumer AffairsConsumer protection: written contracts, deposit caps, Guaranty Fund eligibility
CSL (Construction Supervisor License)Board of Building RegulationsCode competence: written exam, building-code knowledge, structural supervision

For senior aging-in-place projects beyond a simple grab bar install, you need both verified. This catches mismatches: a contractor with CSL but no HIC may have technical skill but no consumer-protection registration; HIC without CSL means no code-competence verification.

This is the Massachusetts-specific companion to our national state contractor license lookup guide. For the master pre-hire workflow, see How to Find a Senior-Friendly Contractor.

How to verify — two lookups

1. HIC verification — Office of Consumer Affairs

Go to mass.gov → Office of Consumer Affairs → Home Improvement Contractor verification.1 Enter the HIC registration number or business name.

Check:

  • Status Active (not expired or revoked)
  • Business name matches the quote
  • Complaint history — recent Office of Consumer Affairs complaints
  • Guaranty Fund eligibility — confirms the Fund will pay if needed

2. CSL verification — Board of Building Regulations

Go to mass.gov → Board of Building Regulations and Standards → CSL lookup.2

Check:

  • Status Active
  • License type — Unrestricted (any 1-4 family residential) vs Restricted (specific use groups)
  • Disciplinary actions — board enforcement

For most senior aging-in-place work, an Unrestricted CSL covers the project.

The Massachusetts Guaranty Fund — $10K per claim

The HIC Guaranty Fund pays homeowners up to $10,000 per claim against HIC-registered contractors who:3

  • Fail to complete contracted work
  • Abandon the job
  • Cause damage through poor workmanship
  • Violate the HIC Act

Claims are processed administratively by the Office of Consumer Affairs — no lawsuit required. The Fund is below the Arizona Recovery Fund’s $30K cap but is meaningful for typical senior projects. Only active HIC registration qualifies for Fund access; hiring unregistered eliminates this protection.

The Mass Save layer — required for utility rebates

Massachusetts is one of the strongest heat pump rebate markets in the US through Mass Save (the joint utility energy-efficiency program). For senior projects claiming a rebate (see Massachusetts heat pump rebates), the contractor must additionally be on the Mass Save approved contractor network.4

That’s three verifications for rebate-eligible projects:

  1. HIC registration (Office of Consumer Affairs)
  2. CSL license (Board of Building Regulations)
  3. Mass Save approval (masssave.com → Find a Contractor)

Worth the 15 minutes total — Mass Save rebates often exceed $10,000 for senior cold-climate heat pump installs, so a contractor who fails any of the three checks costs you the rebate.

Massachusetts senior scam patterns

  • Nor’easter and post-blizzard roofers — South Shore, Cape Cod, North Shore. Out-of-state crews descend after major storms.
  • Spring/summer siding and window crews — door-to-door pitches in senior suburbs (Quincy, Brockton, Worcester).
  • Fake “free home energy audit” — pitches that morph into expensive weatherization. Legitimate Mass Save audits are scheduled through Mass Save directly, not door-to-door.
  • MA AG Elder Justice Unit — pursues elder fraud with enhanced statutory penalties under the Older Adult Protection Act.5

If something goes wrong

  • HIC violations: file at mass.gov → Office of Consumer Affairs. Apply to Guaranty Fund (up to $10K).
  • CSL violations: file with Board of Building Regulations and Standards.
  • Consumer fraud generally: MA AG Consumer Protection at mass.gov/ago/consumer-resources.
  • Elder financial abuse: AG Elder Justice Unit + your county Elder Protective Services.
Massachusetts verification in 30 seconds:
  • BOTH HIC (Office of Consumer Affairs) AND CSL (Board of Building Regulations) required for most residential work
  • Verify each separately at mass.gov
  • Guaranty Fund pays up to $10K per claim against HIC-registered contractors
  • For heat pump rebates, add a 3rd check: Mass Save approved contractor network
  • Nor’easter roofer + “free audit” + siding-crew scams active; never door-to-door
  • Problems → HIC + Guaranty Fund (consumer), CSL Board (code), AG Elder Justice Unit

Citations

  1. Home Improvement Contractor Verification. Massachusetts Office of Consumer Affairs and Business Regulation, retrieved June 9, 2026. .
  1. Construction Supervisor License Verification. Massachusetts Board of Building Regulations and Standards, retrieved June 9, 2026. .
  1. Home Improvement Contractor Guaranty Fund. Massachusetts Office of Consumer Affairs, retrieved June 9, 2026. .
  1. Mass Save Approved Contractor Network. Mass Save, retrieved June 9, 2026. .
  1. Home Improvement Scams Targeting Older Adults. AARP Fraud Watch Network, June 2024. .