General Contracting Contractors in Cambridge, Massachusetts
Licensed Establishments
785
U.S. Census Bureau
Peak Season
April through October - weather-dependent exterior work drives demand
Estimate
Avg. Response Time
3-7 days for initial quotes, 2-3 weeks for detailed estimates
Estimate
Common Job Costs
| Service | Cost Range |
|---|---|
| Kitchen renovation | $35,000 – $85,000 |
| Bathroom remodel | $18,000 – $45,000 |
| Home addition | $150 – $400 |
| Basement finishing | $25,000 – $55,000 |
| Whole house renovation | $100,000 – $350,000 |
| Deck construction | $8,000 – $25,000 |
Licensing Requirements
Licensing Requirements
Massachusetts requires Construction Supervisor License (CSL) for projects over $1,000. Must pass written exam covering building codes, safety, and business practices. 3 years documented construction experience required. Renewal every 2 years with continuing education.
Permit Requirements
Building permits required through Cambridge Inspectional Services Department for structural work, additions, major renovations. Permit fees range $200-2000+ based on project value. Plan review required for projects over $25,000.
Inspection Schedule
Foundation inspection before concrete pour, framing inspection before insulation, final inspection before certificate of occupancy. Additional inspections for electrical, plumbing, HVAC by respective trades.
Insurance Minimums
General liability minimum $300,000 per occurrence, $600,000 aggregate. Workers compensation required if employing others. Many projects require $1M+ coverage.
How to Get Licensed
- 1
Meet experience requirements
Document 3 years of construction experience with employer verification, payroll records, or project documentation
- 2
Complete application
Submit Construction Supervisor License application to MA Division of Professional Licensure with required documentation and fees
- 3
Pass written examination
Schedule and pass CSL exam covering building codes, construction methods, safety regulations, and business practices
- 4
Submit insurance proof
Provide certificate of general liability insurance meeting state minimum requirements
- 5
Pay licensing fees
Submit required licensing fees (typically $75-150) and any additional processing costs
- 6
Maintain license
Renew every 2 years with continuing education credits and updated insurance documentation
About This Market
Cambridge general contracting runs hot year-round with steady renovation demand from historic homes and new construction pressure. Competition's fierce - 785 licensed establishments statewide means every job gets multiple bids. Victorian and Colonial renovations dominate, with kitchen/bath remodels and additions driving volume. Costs run 15-25% above state average due to tight labor market, historic district requirements, and Cambridge's expensive permit process. Lead times stretch 3-6 months for quality contractors.
Get your CSL license first - no exceptions, and Cambridge Building Department checks. Historic districts add complexity and cost, so know preservation requirements before bidding. Peak season books fast, so line up spring work by February. Parking's a nightmare - factor permit costs and logistics into every estimate. Material delivery coordination matters more here than suburbs. Insurance requirements vary by project size, but carry more than minimums. Build relationships with local subs - good electricians and plumbers book months out.
Data Sources:
Frequently Asked Questions
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Contractors in Cambridge
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