Trade directory · Cambridge metro · Massachusetts

Plumbing contractors in
Cambridge, Massachusetts.

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

Licensed Establishments
3,034
U.S. Census Bureau
Peak Season
Late fall through early spring (October-March) due to frozen pipe emergencies and heating system issues
Market estimate
Avg. Response Time
24-48 hours for quotes, same-day for emergency calls
Operator average
§ A · Market rates

Common Job Costs

CAMBRIDGE-MA · LOCAL ESTIMATES
Service
Description
Cost Range
Basic drain cleaning
Typical range based on local basic drain cleaning jobs.
$150 – $350
Toilet installation/replacement
Typical range based on local toilet installation/replacement jobs.
$200 – $600
Water heater replacement
Typical range based on local water heater replacement jobs.
$1,200 – $3,500
Kitchen sink installation
Typical range based on local kitchen sink installation jobs.
$300 – $800
Main sewer line repair
Typical range based on local main sewer line repair jobs.
$2,500 – $8,000
Emergency service call
Typical range based on local emergency service call jobs.
$200 – $400
§ B · Regulatory

Licensing Requirements

MA
§1

Licensing Requirements

Massachusetts requires a Journeyman Plumber license (4-year apprenticeship plus exam) or Master Plumber license (additional 2 years experience plus exam). Must pass state exam administered by Department of Public Safety. Renewal every 2 years with continuing education requirements.

§2

Permit Requirements

Cambridge requires permits for water heater replacements, new fixture installations, and any work involving gas lines. Permits obtained through Cambridge Inspectional Services Department. Fee ranges $50-200 depending on scope.

§3

Inspection Schedule

Rough plumbing inspection before covering work, final inspection after completion. Gas work requires separate inspection. Schedule 24-48 hours in advance through Cambridge building department.

§4

Insurance Minimums

General liability minimum $300,000, workers compensation if employees, professional liability recommended. Bonding requirements vary by municipality.

§ C · Path to license

How to Get Licensed

6 STEPS
1

Complete apprenticeship

Complete 4-year plumbing apprenticeship program through state-approved program or equivalent work experience under licensed master plumber

01/06
2

Apply for examination

Submit application to Massachusetts Department of Public Safety Division of Professional Licensure with proof of apprenticeship completion and required fees

02/06
3

Pass state examination

Pass written and practical Journeyman Plumber examination covering codes, safety, and technical knowledge

03/06
4

Obtain initial license

Upon passing exam, receive initial Journeyman Plumber license valid for 2 years

04/06
5

Complete continuing education

Complete required continuing education hours and renew license every 2 years

05/06
6

Advance to Master (optional)

After 2+ years as Journeyman, eligible to take Master Plumber exam for expanded scope and ability to supervise others

06/06
§ D · Field notes

About This Market

UPDATED APR 2026

Cambridge plumbing market is competitive with high demand driven by old housing stock needing constant maintenance and upscale renovations. Mix of emergency calls in triple-deckers and high-end kitchen/bath remodels in single-family homes near Harvard and MIT. Costs run 15-20% above state average due to labor rates and parking challenges. Competition is fierce with approximately 3034 licensed establishments statewide, many targeting the lucrative Cambridge market. Winter pipe bursts and summer renovation season drive most revenue. Success here requires speed on emergency calls and quality work that passes strict Cambridge inspections. Licensing is no joke - you need your Journeyman minimum, plus solid insurance coverage. Parking is a nightmare, so factor that into your pricing. The city inspectors know their stuff and won't pass shoddy work. Build relationships with local supply houses and get familiar with the old cast iron and galvanized systems you'll find in these century-old buildings. Emergency response capability separates winners from losers in this market.

Data Sources
  • Licensed establishments in MA
    U.S. Census Bureau
  • Licensing requirements
    Massachusetts Department of Public Safety
  • Permit requirements
    Cambridge Inspectional Services Department
  • Cost ranges
    Local contractor estimates
  • Response times
    Industry estimates
  • Insurance requirements
    Massachusetts state regulations
§ E · FAQ

Frequently Asked Questions

05 QUESTIONS
Q/01

How much does it cost to hire a plumber in Cambridge, MA?

Basic service calls range $150-400, with toilet replacement $200-600 and water heater installation $1200-3500. Emergency calls command premium rates due to high demand.

Q/02

What license do plumbers need to work in Massachusetts?

Massachusetts requires either a Journeyman Plumber license (4-year apprenticeship plus state exam) or Master Plumber license (additional experience plus exam), administered by Department of Public Safety.

Q/03

Do I need a permit for plumbing work in Cambridge?

Yes, Cambridge requires permits for water heater replacements, new fixtures, and gas line work. Permits cost $50-200 and are obtained through Cambridge Inspectional Services Department.

Q/04

How quickly can I get a plumber quote in Cambridge?

Most contractors respond within 24-48 hours for standard work. Emergency services typically available same-day but at premium rates, especially during winter months.

Q/05

When is peak season for plumbers in Cambridge?

Late fall through early spring (October-March) due to frozen pipe emergencies and heating issues. Summer renovation season also creates high demand for installation work.

§ F · Directory

Plumbing contractors in Cambridge

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