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ContractorsRanked

Best Plumbers in Oakville, CT (2026)

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

The short answer

  1. 1

    Best overall in Oakville: Roto-Rooter Plumbing & Water Cleanup, CR Score 64/100; 4.8★ from 662 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): American Rooter, posts 24/7 hours; ranked #2 of 506.

  3. 15

    Most-reviewed: Roto-Rooter Plumbing & Water Cleanup, 1,345 Google reviews at 4.7★, the most of 506 ranked; ranked #15.

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

506 Oakville plumbers are ranked here by CR Score, from ten published factors. 118 are open 24/7, 259 open Saturdays and 175 open Sundays, based on posted hours. The median Google rating is 4.9★ across 506 rated businesses.

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

Top 10 plumbers in Oakville at a glance

Top 10 plumbers in Oakville at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Roto-Rooter Plumbing & Water Cleanup644.8★ (662)Waterbury, 4 mi away24/7Overall
2American Rooter634.8★ (280)Plymouth, 2 mi away24/7Emergencies
3Escape Plumbing & Heating, LLC635.0★ (267)New Milford, 9 mi away24/7—
4High Rock Water Plumbing | Well Pump & Water Treatment Services Company625.0★ (151)Naugatuck, 7 mi away24/7—
5Wind River Environmental of Monroe, CT624.9★ (311)Easton, 11 mi away24/7—
6Master Rooter: Sewer and Drain Cleaning Service625.0★ (56)Waterbury, 2 mi away24/7—
7Roto-Rooter Plumbing & Water Cleanup614.8★ (687)Meriden, 15 mi away24/7—
8Mr. Rooter Plumbing of Southern Fairfield County614.9★ (722)Shelton, 18 mi away24/7—
9Rob Rozz Well & Pump Service615.0★ (540)Bethel, 14 mi awaySat · Sun · Evenings—
10Roto-Rooter Plumbing & Water Cleanup614.9★ (421)Ansonia, 17 mi away24/7—

The 506 best plumbers in Oakville, 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.

  2. #2 American Rooter

    Based in Plymouth, 2 mi away

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 280 Google reviews, listed on Google as “Plumber”.

    • 4.8★ from 280 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    755 Thomaston Rd, Watertown, CT 06795
    View profile for American Rooter(860) 274-7338

  18. #18 Supreme Plumber

    Based in Waterbury, 4 mi away

    60/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 64 Google reviews
    Hours
    Mon–Sun 7 AM–7 PM
    Address
    238 Platt St, Waterbury, CT 06704
    View profile for Supreme Plumber(860) 946-9101

  21. #21 Backflow Joe's

    Based in Greenburgh, 24 mi away

    59/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 329 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 329 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Backflow Joe's(845) 590-6771

  22. #22 APB Plumbing

    Based in Bristol, 18 mi away

    59/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 171 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 171 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for APB Plumbing(860) 819-6392

  24. #24 Macary’s Plumbing & Drain Services | Emergency Plumbing - Drain Cleaning and more

    Based in Terryville, 6 mi away

    59/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Plumber”.

    • 4.9★ from 62 Google reviews
    • Emergency service
    Hours
    Mon–Sat 7 AM–6 PM · Sun closed
    Address
    194 E Main St Unit F, Thomaston, CT 06787
    View profile for Macary’s Plumbing & Drain Services | Emergency Plumbing - Drain Cleaning and more(203) 560-8477

Plumbers ranked #29 to #31

#1 to #25 are shown in full above. Here are #29 to #31, in CR Score order; each links to its profile. We publish the top 31 of 506 ranked plumbers here; the rest are on their profiles.

plumbers in Oakville, ranks 29 to 31
RankBusinessCR ScoreGoogle ratingDistance
29Mascetti's Plumbing Sewer and Drain594.6★ (144)14 mi
31Daffodil Plumbing584.9★ (373)15 mi

Also serving Oakville

1 more plumbers within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked plumbers serving Oakville
BusinessGoogle ratingDistance
Drain Wizard Plumbing5.0★ (146)16 mi

How much do plumbers cost in Oakville?

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

How much do plumbers cost in Oakville?
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 Connecticut

In Connecticut, Connecticut Department of Consumer Protection licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.

  1. Search the business name or license number on the Connecticut Department of Consumer Protection license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. 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 Oakville plumbers

We scored 506 Oakville 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 Oakville 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 Oakville: frequently asked questions

Who is the best plumber in Oakville?

By CR Score, the highest-ranked plumber in Oakville, CT is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 64/100. It has 4.8★ from 662 Google reviews. It is open 24/7. American Rooter (#2) and Escape Plumbing & Heating, LLC (#3) follow. We ranked 506 plumbers on ten factors, last updated October 22, 2026.

How many plumbers are there in Oakville?

ContractorsRanked ranks 506 plumbers serving Oakville, CT. Another 1 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Oakville are open 24/7?

118 ranked plumbers in Oakville post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), American Rooter (#2) and Escape Plumbing & Heating, LLC (#3). Macary’s Plumbing & Drain Services | Emergency Plumbing - Drain Cleaning and more (#24) also lists emergency service. Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Oakville work on weekends?

259 of 506 ranked plumbers post Saturday hours and 175 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), American Rooter (#2) and Escape Plumbing & Heating, LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.

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

In Connecticut, Connecticut Department of Consumer Protection handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures. Search the business or license number at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx.

How much does water heater replacement cost in Oakville?

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 Oakville. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Oakville plumbers have?

The median Google rating among 506 rated plumbers in Oakville is 4.9★, with a median of 17 reviews. Roto-Rooter Plumbing & Water Cleanup has the most, 1,345 reviews, and ranks #15. 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.

Update log for Oakville

  1. October 2026: CR Scores recalculated for 506 plumbers serving Oakville.
  2. October 2026: 2 duplicate listings merged.

More plumbers and Oakville pages

Other trades in Oakville