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Best Plumbers in South Boston, MA (2026)

858 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in South Boston: Roto-Rooter Plumbing & Water Cleanup, CR Score 67/100; 4.8★ from 3,013 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Vaughan Plumbing & Heating, posts 24/7 hours; ranked #2 of 858.

  3. 13

    Most-reviewed: 128 Plumbing, Heating, Cooling & Electric, 3,912 Google reviews at 4.9★, the most of 858 ranked; ranked #13.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

858 South Boston plumbers are ranked here by CR Score, from ten published factors. 319 are open 24/7, 500 open Saturdays and 393 open Sundays, based on posted hours. The median Google rating is 4.9★ across 858 rated businesses.

Most of this list also appears on the Plumbers in Boston ranking. See Plumbers in Boston

Top 10 plumbers in South Boston at a glance

Top 10 plumbers in South Boston at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Roto-Rooter Plumbing & Water Cleanup674.8★ (3,013)Boston, 2 mi away24/7Overall
2Vaughan Plumbing & Heating654.9★ (773)Brookline, 2 mi away24/7Emergencies
3R-Chee Plumbing & Heating645.0★ (730)Hull, 9 mi away24/7—
4Rapid Flow Sewer & Drain Cleaning644.9★ (493)Arlington, 4 mi away24/7—
5Roto-Rooter Plumbing & Water Cleanup634.8★ (2,454)Stoughton, 13 mi away24/7—
6Accurate Baker Elman634.9★ (552)Newton, 8 mi away24/7—
7Johnson Bros. Plumbing & Drain Cleaning634.8★ (328)Quincy, 5 mi away24/7—
8Blue Bear Plumbing, Heating & Air624.9★ (309)Quincy, 7 mi away24/7—
9John's Sewer & Drain Cleaning624.9★ (796)Woburn, 14 mi away24/7—
10Full Swing Plumbing, Heating & Air (formerly Pilgrim Plumbing, Heating & Air)624.9★ (760)Norwell, 14 mi away24/7—

The 858 best plumbers in South Boston, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  12. #12 Wildcat Plumbing

    Based in Weymouth, 11 mi away

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 306 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 306 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    36 Finnell Dr Suite 12, Weymouth, MA 02188
    View profile for Wildcat Plumbing(833) 620-3192

  18. #18 Mr. Drain Inc

    Based in Weymouth, 11 mi away

    61/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 240 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 240 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    70 Finnell Dr #11, Weymouth, MA 02188
    View profile for Mr. Drain Inc(617) 446-9991

Plumbers ranked #27 to #29

#1 to #25 are shown in full above. Here are #27 to #29, in CR Score order; each links to its profile. We publish the top 29 of 858 ranked plumbers here; the rest are on their profiles.

plumbers in South Boston, ranks 27 to 29
RankBusinessCR ScoreGoogle ratingDistance
27Akian Plumbing, Heating, Cooling & Electric604.8★ (1,625)9 mi
29McMahon Plumbing & Heating604.6★ (530)7 mi

How much do plumbers cost in South Boston?

National price ranges in USD, not adjusted for South Boston. Each row names its basis and the month we checked it.

How much do plumbers cost in South Boston?
JobLowTypicalHighBasisChecked
Water heater replacement$882$1,348$1,826Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026

How to check a plumber's license in Massachusetts

In Massachusetts, Massachusetts Board of State Examiners of Plumbers and Gas Fitters licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.

  1. Check that the status is active and the name matches the contract or truck.
  2. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked South Boston plumbers

We scored 858 South Boston plumbers on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn South Boston data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Plumbers in South Boston: frequently asked questions

Who is the best plumber in South Boston?

By CR Score, the highest-ranked plumber in South Boston, MA is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 67/100. It has 4.8★ from 3,013 Google reviews. It is open 24/7. Vaughan Plumbing & Heating (#2) and R-Chee Plumbing & Heating (#3) follow. We ranked 858 plumbers on ten factors, last updated October 22, 2026.

Which plumbers in South Boston are open 24/7?

319 ranked plumbers in South Boston post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), Vaughan Plumbing & Heating (#2) and R-Chee Plumbing & Heating (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in South Boston work on weekends?

500 of 858 ranked plumbers post Saturday hours and 393 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), Vaughan Plumbing & Heating (#2) and R-Chee Plumbing & Heating (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a plumber's license in Massachusetts?

In Massachusetts, Massachusetts Board of State Examiners of Plumbers and Gas Fitters handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures.

How much does water heater replacement cost in South Boston?

Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for South Boston. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do South Boston plumbers have?

The median Google rating among 858 rated plumbers in South Boston is 4.9★, with a median of 18 reviews. 128 Plumbing, Heating, Cooling & Electric has the most, 3,912 reviews, and ranks #13. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank plumbers?

Each plumber gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do plumbers outside South Boston count in this ranking?

Yes, if they are within 25 mi of the South Boston city center, our service radius for plumbers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for South Boston

  1. October 2026: CR Scores recalculated for 858 plumbers serving South Boston.
  2. October 2026: 5 duplicate listings merged.

More plumbers and South Boston pages

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