Trade directory · Cambridge metro · Massachusetts

General Contracting contractors in
Cambridge, Massachusetts.

A public directory of licensed general contracting contractors serving greater Cambridge. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.

Licensed Establishments
785
U.S. Census Bureau
Peak Season
April through October - home renovation season coincides with favorable weather conditions
Market estimate
Avg. Response Time
2-5 business days for initial response, 7-14 days for detailed proposals
Operator average
§ A · Market rates

Common Job Costs

CAMBRIDGE-MA · LOCAL ESTIMATES
Service
Description
Cost Range
Kitchen renovation
Typical range based on local kitchen renovation jobs.
$35,000 – $85,000
Bathroom renovation
Typical range based on local bathroom renovation jobs.
$18,000 – $45,000
Basement finishing
Typical range based on local basement finishing jobs.
$25,000 – $55,000
Home addition
Typical range based on local home addition jobs.
$75,000 – $200,000
Roof replacement
Typical range based on local roof replacement jobs.
$12,000 – $28,000
Deck construction
Typical range based on local deck construction jobs.
$8,000 – $25,000
§ B · Regulatory

Licensing Requirements

MA
§1

Licensing Requirements

Massachusetts requires Construction Supervisor License (CSL) for projects over $1,000. Must pass written exam covering building codes, safety regulations, and business practices. Requires 2 years experience or approved education. License renewal every 2 years with continuing education requirements.

§2

Permit Requirements

Cambridge requires building permits for most general contracting work. Submit applications through Cambridge Inspectional Services Department. Permit fees range from $50 for minor work to several thousand for major renovations based on project value.

§3

Inspection Schedule

Typical inspections include foundation/footing, framing, electrical rough-in, plumbing rough-in, insulation, and final inspection. Schedule inspections 24-48 hours in advance through Cambridge building department.

§4

Insurance Minimums

Massachusetts requires general liability insurance minimum $1 million per occurrence, workers compensation if employing others. Many municipalities and clients require $2 million liability coverage.

§ C · Path to license

How to Get Licensed

5 STEPS
1

Meet eligibility requirements

Accumulate 2 years construction experience or complete approved construction education program. Document work history with employer verification forms.

01/05
2

Submit application

Complete Construction Supervisor License application through Massachusetts Division of Professional Licensure website. Include experience documentation and pay $75 application fee.

02/05
3

Schedule and pass exam

Register for written examination covering building codes, safety regulations, and business practices. Exam fee is $50. Must achieve passing score of 70% or higher.

03/05
4

Obtain insurance coverage

Secure general liability insurance minimum $1 million per occurrence and workers compensation if employing others. Submit proof of coverage with license application.

04/05
5

Receive license and maintain compliance

Upon approval, receive CSL certificate valid for 2 years. Complete continuing education requirements and renew before expiration to maintain active status.

05/05
§ D · Field notes

About This Market

UPDATED APR 2026

Cambridge's general contracting market runs hot with steady demand from homeowners renovating century-old properties and new construction in developing areas. Competition is fierce among the estimated 785 licensed establishments statewide, with Cambridge contractors commanding premium rates due to complex historical building requirements and wealthy client base. Kitchen and bathroom renovations dominate the residential market, while commercial work centers around tech companies and biotech facilities. Costs run 15-25% above state average due to strict historical preservation requirements, permitting complexity, and high labor costs. Peak season stretches April through October when weather permits exterior work and homeowners tackle major projects. Getting established requires navigating Massachusetts Construction Supervisor License requirements, which include passing a comprehensive exam and proving experience or education credentials. Cambridge's permitting process is thorough but predictable - expect detailed plan reviews and multiple inspections. Local building department moves efficiently but demands quality work that meets strict code requirements. Success in this market means understanding historical building methods, maintaining top-tier insurance coverage, and building relationships with local suppliers who understand Cambridge's unique material requirements.

Data Sources
  • Licensed establishments count
    U.S. Census Bureau Economic Census
  • Licensing requirements
    Massachusetts Division of Professional Licensure
  • Permit requirements
    Cambridge Inspectional Services Department
  • Cost ranges
    Local contractor surveys and market estimates
  • Insurance minimums
    Massachusetts Division of Professional Licensure
§ E · FAQ

Frequently Asked Questions

05 QUESTIONS
Q/01

What license do I need to work as a general contractor in Cambridge, MA?

You need a Massachusetts Construction Supervisor License (CSL) for any project over $1,000. This requires passing a state exam and proving 2 years experience or approved education, according to Massachusetts Division of Professional Licensure.

Q/02

How much does a typical kitchen renovation cost in Cambridge?

Kitchen renovations in Cambridge typically cost $35,000-$85,000 depending on size and finishes. Costs run higher than state average due to historical building requirements and premium local labor rates (estimate based on local contractor surveys).

Q/03

How long does it take to get building permits in Cambridge?

Cambridge building permits typically take 2-4 weeks for standard residential projects. Complex projects requiring design review or historical commission approval can take 6-8 weeks, according to Cambridge Inspectional Services Department.

Q/04

What insurance coverage do general contractors need in Massachusetts?

Massachusetts requires minimum $1 million general liability insurance per occurrence and workers compensation if you have employees. Most clients and municipalities require $2 million coverage, according to Massachusetts Division of Professional Licensure.

Q/05

When is the best time to start a home renovation project in Cambridge?

April through October represents peak construction season when weather permits exterior work and material delivery is reliable. Indoor projects can proceed year-round but expect higher contractor availability November through March (estimate based on local market patterns).

§ F · Directory

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