What Can a Handyman Do Without a License in Cambridge, Massachusetts (Middlesex County)?

By Ray Duke, Founder of Bulletproof Handyman · Last reviewed July 2026

Handymen and small contractors in Cambridge, Massachusetts must navigate a multi-layered licensing system. Work on residential projects valued at $1,000 or more (labor + materials combined) requires Home Improvement Contractor (HIC) registration from the state ($150 for 2 years). Below $1,000, HIC registration may not be required, but specialty trades—electrical, plumbing, HVAC, gas fitting—require separate state licenses regardless of project size. Cambridge requires a $50 Business Certificate if you operate under a trade name (DBA). No county-level business license is required. An LLC formation costs $500 in Massachusetts filing fees.

✅ What You Can Do Without a License

• Minor drywall repairs and patching (non-structural)
• Interior and exterior painting (residential, non-commercial)
• Wallpapering and wall coverings
• Caulking and weatherstripping
• Fixture replacement (non-electrical, non-plumbing—e.g., cabinet hardware, towel bars, shelving)
• Basic carpentry repairs on existing structures (non-structural modifications)
• Deck repair and maintenance (non-structural; new deck construction requires CSL)
• Window and door cleaning and maintenance (not replacement affecting structure)
• General handyman work on owner-occupied 1–4 unit residential homes valued under $1,000 (labor + materials combined), provided it is minor repair/maintenance only and does not involve specialty trades

Common Jobs Handymen Take in Cambridge

Based on the MA threshold, handymen in Cambridge commonly take on:

• Minor drywall repairs and patching (non-structural)
• Interior and exterior painting (residential, non-commercial)
• Caulking and weatherstripping
• Fixture replacement (non-electrical, non-plumbing—e.g., cabinet hardware, towel bars, shelving)
• Basic carpentry repairs on existing structures (non-structural modifications)
• Deck repair and maintenance (non-structural; new deck construction requires CSL)
• Window and door cleaning and maintenance (not replacement affecting structure)
• General handyman work on owner-occupied 1–4 unit residential homes valued under $1,000 (labor + materials combined), provided it is minor repair/maintenance only and does not involve specialty trades

⚠️ What Requires a License

• ANY electrical work beyond simple fixture changes (e.g., outlet/switch replacement by a non-licensed person may be permitted in some cases, but any wiring, panel work, or circuit modifications require a Master or Journeyman Electrician license)
• ANY plumbing work beyond simple fixture replacement (e.g., faucet, showerhead)—water line installation, drain work, water heater installation all require a Master or Journeyman Plumber license
• ANY gas fitting work (requires a Gas Fitter license)
• HVAC system installation, repair, or service (requires appropriate HVAC/Refrigeration license or CSL with HVAC specialty)
• Structural modifications, additions, or new construction (requires a Construction Supervisor License—CSL)
• Roofing work (typically requires CSL or specialty roofing license)
• Any residential home improvement work valued at $1,000 or more (labor + materials combined) requires HIC registration
• Commercial building work of any size (outside HIC scope; requires CSL and appropriate trade licenses)
• Work on properties being renovated primarily for resale (outside HIC exemption; requires HIC registration regardless of cost)

What to Tell Clients About Your Scope of Work

In MA, you can take jobs under $1,000 (labor + materials) without a contractor license. When a client asks, be straightforward: for jobs under this threshold, you're operating legally as a handyman. For larger projects, refer them to a licensed contractor or get licensed before bidding that work.

Business License — Cambridge

Required. Business Certificate (DBA — 'Doing Business As')

Setting Up Your Business in MA

To get paid professionally and protect yourself, register your business. LLC filing fee in MA: $500 (one-time). You'll also need a free EIN from the IRS and a business checking account.

Your Next Steps to Operating Legally in Cambridge

1. Step 1: Determine your business structure. If you plan to hire employees or want liability protection, form an LLC with the Massachusetts Secretary of State ($500 filing fee). If operating as a sole proprietor, you can skip this step.
2. Step 2: Register as a Home Improvement Contractor (HIC) with OCABR if you plan to bid on residential work valued at $1,000 or more. Register online at https://www.mass.gov/home-improvement-contractor-registration-and-renewal. Fee: $150 for 2 years, plus Guaranty Fund Fee (scaled to employees).
3. Step 3: If performing structural work, apply for a Construction Supervisor License (CSL) from OPSI. You must show 3 years of construction experience and pass the state exam (administered by PSI). Exam fee: $100; License fee: $150.
4. Step 4: If performing electrical, plumbing, gas fitting, HVAC, or sheet metal work, apply for the appropriate trade license from the Division of Professional Licensure (DPL). Each trade has separate exam and licensing requirements. Typical license fee: $150.
5. Step 5: File a Business Certificate (DBA) with the Cambridge City Clerk if you operate under a trade name. Fee: $50, valid for 4 years. File online at https://www.cambridgema.gov/iwantto/applyforabusinesscertificate.
6. Step 6: Verify zoning compliance with the Cambridge Community Development Department (CDD) if operating from a residential address. Confirm whether a Home Occupation Certificate is required.
7. Step 7: Obtain general liability insurance ($1 million minimum recommended). Many property owners and municipalities require proof of insurance before work begins.
8. Step 8: Before starting any project, check with the Cambridge Building Department to determine whether permits are required. Even exempt work may trigger permit requirements.
9. Step 9: For any HIC-registered work ($1,000+), prepare a detailed written contract complying with M.G.L. Chapter 142A. Have the homeowner sign before work begins.
10. Step 10: Keep all licenses, registrations, and insurance current. Set calendar reminders for renewal dates (HIC: every 2 years; CSL: every 2 years; Trade licenses: every 3 years).

Licensing rules and fees change over time, so this information may be out of date. Verify all requirements with your local licensing authority before making business decisions.