General Contracting Contractors in Boston, Massachusetts
Licensed Establishments
785
U.S. Census Bureau
Peak Season
April through October, with highest demand May-September due to weather constraints and homeowner preference for outdoor work
Estimate
Avg. Response Time
3-7 business days for initial response, 1-2 weeks for detailed estimates during peak season
Estimate
Common Job Costs
| Service | Cost Range |
|---|---|
| Home Addition (200-400 sq ft) | $40,000 – $80,000 |
| Kitchen Renovation (mid-range) | $25,000 – $65,000 |
| Bathroom Renovation (full) | $15,000 – $35,000 |
| Basement Finishing (1000 sq ft) | $20,000 – $45,000 |
| Roof Replacement (average home) | $12,000 – $25,000 |
| Deck Construction (300 sq ft composite) | $8,000 – $18,000 |
Licensing Requirements
Licensing Requirements
Construction Supervisor License (CSL) required for projects over $1,000. Must pass PSI examination, provide proof of 3 years experience or education equivalent, maintain $1 million liability insurance. License renewal every 2 years with 10 hours continuing education. Home Improvement Contractor registration also required through MA Division of Professional Licensure.
Permit Requirements
Building permits required for most structural work through Boston Inspectional Services. Electrical and plumbing permits needed for related work. Submit plans 2-3 weeks before start date. Permit fees range $100-$2000+ based on project value.
Inspection Schedule
Foundation inspection before concrete pour, framing inspection before closing walls, rough electrical/plumbing before covering, insulation inspection, final inspection before occupancy. Schedule 48 hours in advance through Boston ISD.
Insurance Minimums
General liability minimum $1 million per occurrence, workers compensation if employees, auto liability $1 million. Some municipalities require $2 million aggregate coverage.
How to Get Licensed
- 1
Meet Experience Requirements
Document 3 years of construction experience or equivalent education. Acceptable proof includes W-2s, tax returns, employer letters, or construction management degree.
- 2
Obtain Required Insurance
Secure general liability insurance minimum $1 million per occurrence from approved carrier. Workers compensation required even for sole proprietors in Massachusetts.
- 3
Submit License Application
Complete CSL application through MA Division of Professional Licensure online portal. Include experience documentation, insurance certificates, and application fee of $75.
- 4
Schedule and Pass PSI Exam
Register for Construction Supervisor License exam through PSI Services. Study Massachusetts building code, safety regulations, and business law. Pass with 70% or higher score.
- 5
Register as Home Improvement Contractor
Separate registration required for residential work under $3,000. Submit additional application and fees through Division of Professional Licensure.
- 6
Maintain License Compliance
Renew license every 2 years with 10 hours continuing education. Keep insurance current and update license for any business changes or violations.
About This Market
Boston's general contracting market is red-hot with steady residential renovation demand driven by high property values and aging housing stock. Competition is fierce among the 785+ licensed establishments statewide, but skilled contractors stay booked solid. Historic districts, triple-deckers, and Victorian homes dominate the work mix. Material costs run 15-20% above national average, labor shortages push wages up, and permitting delays are standard operating procedure. Client expectations are high and budgets reflect Boston's premium market.
To work this market, get your CSL license first - the 3-year experience requirement and insurance minimums weed out amateurs. Learn Boston's byzantine permitting process and build relationships with ISD inspectors. Historic district work requires specialized knowledge and patience. Peak season books up by February, so winter is for planning and interior work. Price jobs 20-30% above suburban markets and build permit delays into every timeline. Cash flow management is critical with Boston's high operating costs and longer project cycles.
Data Sources:
Frequently Asked Questions
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Contractors in Boston
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