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ContractorsRanked

Best Plumbers in Cornelius, OR (2026)

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

The short answer

  1. 1

    Best overall in Cornelius: Cornel's Plumbing, Heating & Air Conditioning, CR Score 91/100; 4.9★ from 2,121 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Mr. Rooter Plumbing, posts 24/7 hours; ranked #2 of 318.

  3. 23

    Most-reviewed: 3 Mountains Home Services, 5,760 Google reviews at 4.8★, the most of 318 ranked; ranked #23.

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

318 Cornelius plumbers are ranked here by CR Score, from 8 published factors. 92 are open 24/7, 166 open Saturdays and 132 open Sundays, based on posted hours. The median Google rating is 4.8★ across 318 rated businesses.

Top 10 plumbers in Cornelius at a glance

Top 10 plumbers in Cornelius at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Cornel's Plumbing, Heating & Air Conditioning914.9★ (2,121)Portland, 11 mi away24/7Overall
2Mr. Rooter Plumbing914.9★ (986)Hillsboro, 8 mi away24/7Emergencies
3West Side Drain and Septic915.0★ (146)Cornelius24/7—
4West Side Drain and Septic894.9★ (800)Hillsboro, 15 mi away24/7—
5Wild Weasel Plumbing884.9★ (123)Clackamas, 5 mi away24/7—
6Roto-Rooter Plumbing & Water Cleanup884.8★ (2,190)Portland, 18 mi away24/7—
7West Side Drain and Septic884.9★ (151)Hillsboro, 7 mi away24/7—
8Alchemy Plumbing & Drain Cleaning884.9★ (861)Lake Oswego, 18 mi away24/7—
9Pipeline Plumbing & Drains884.9★ (519)Tigard, 15 mi away24/7—
10Henco Plumbing Service884.9★ (1,290)Vancouver, 21 mi away24/7—

The 318 best plumbers in Cornelius, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

Plumbers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 318 ranked plumbers here; the rest are on their profiles.

plumbers in Cornelius, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Kamakoa Plumbing Solutions855.0★ (104)5 mi
27Plumbing and Sewer Renewal Specialists855.0★ (539)15 mi
28Pink Flamingo Plumbing854.4★ (188)5 mi
297 Pines Plumbing854.8★ (148)15 mi
30D&F Plumbing, Heating and Cooling854.5★ (1,974)19 mi
31Brass Monkey Plumbing855.0★ (451)15 mi
32Mr. Rooter Plumbing854.8★ (651)24 mi
33Best Price Plumbing and Drain854.2★ (26)In Cornelius
34Oregon Plumbing854.9★ (61)15 mi
35Mr. Rooter Plumbing of Newberg854.8★ (398)23 mi
36P1 Plumbing & Drain845.0★ (158)24 mi
37MyPlumberNow845.0★ (136)24 mi
38White Oak Plumbing845.0★ (164)25 mi
39Zoom Drain845.0★ (53)17 mi
40Jeremy's Plumbing and Water heater services845.0★ (125)25 mi
41Cornel's Plumbing, Heating & Air Conditioning844.9★ (276)13 mi
42Legacy Plumbing & Excavation834.8★ (187)23 mi
43Pilot Plumbing and Water Restoration of Portland834.8★ (90)19 mi
44bluefrog Plumbing and Drain of Portland834.8★ (77)20 mi
45Pro Drain & Rooter Service, Inc.834.8★ (275)14 mi
46Leak Locaters834.9★ (168)14 mi
47Cornel's Plumbing, Heating & Air Conditioning835.0★ (544)22 mi
48Proline Plumbing834.7★ (178)22 mi
49Hold Right Plumbing835.0★ (54)22 mi
50Lovett Inc.834.9★ (458)22 mi

Also serving Cornelius

20 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 Cornelius
BusinessGoogle ratingDistance
Advanced Mechanical Services3.0★ (2)15 mi
ATI Plumbing Inc5.0★ (2)25 mi
Beaverton Gold Plumbing5.0★ (1)11 mi
CWM Services5.0★ (2)21 mi
Eagle Paving and Construction5.0★ (2)11 mi
Go With The Flow Plumbing4.9★ (245)23 mi
Lone Star Plumbing Company5.0★ (1)18 mi
Mainline Drain & Construction5.0★ (1)12 mi
Mechanical Agents of Oregon5.0★ (1)19 mi
Octopus Project Management5.0★ (2)23 mi
Oregon Waste Water Services5.0★ (1)19 mi
Proline Plumbing & Sewer - Vancouver4.5★ (534)23 mi
Quality Sales Inc3.0★ (2)24 mi
Reece Johnson Paving & Excavation5.0★ (2)15 mi
SERVPRO of Hillsboro/Forest Grove4.7★ (91)In Cornelius
Sound Plumbing & Drain5.0★ (111)22 mi
The Service Plumbers Gladstone5.0★ (2)25 mi
Westside Residential Backflow Testing LLC5.0★ (1)12 mi
Williams & Sons Heating & Air Conditioning4.8★ (54)In Cornelius
Wilsonville Service Plumber5.0★ (2)21 mi

How much do plumbers cost in Cornelius?

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

How much do plumbers cost in Cornelius?
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 Oregon

In Oregon, Oregon Construction Contractors Board licenses Construction contractor license plus a plumbing contractor license from the Building Codes Division.

  1. Search the business name or license number on the Oregon Construction Contractors Board 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 Cornelius plumbers

We scored 318 Cornelius plumbers on 8 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. Unknown factors are left out of the score, 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 Cornelius data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Plumbers in Cornelius: frequently asked questions

Who is the best plumber in Cornelius?

By CR Score, the highest-ranked plumber in Cornelius, OR is Cornel's Plumbing, Heating & Air Conditioning with a CR Score of 91/100. It has 4.9★ from 2,121 Google reviews. It is open 24/7. Mr. Rooter Plumbing (#2) and West Side Drain and Septic (#3) follow. We ranked 318 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in Cornelius?

ContractorsRanked ranks 318 plumbers serving Cornelius, OR. 2 of them are based in Cornelius; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Cornelius are open 24/7?

92 ranked plumbers in Cornelius post 24/7 hours. The highest-ranked are Cornel's Plumbing, Heating & Air Conditioning (#1), Mr. Rooter Plumbing (#2) and West Side Drain and Septic (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Cornelius work on weekends?

166 of 318 ranked plumbers post Saturday hours and 132 post Sunday hours. The highest-ranked open Saturdays are Cornel's Plumbing, Heating & Air Conditioning (#1), Mr. Rooter Plumbing (#2) and West Side Drain and Septic (#3). Posted hours are office hours; crews may book weekend jobs separately.

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

In Oregon, Oregon Construction Contractors Board handles licensing and covers Construction contractor license plus a plumbing contractor license from the Building Codes Division. Search the business or license number at https://search.ccb.state.or.us/search/.

How much does water heater replacement cost in Cornelius?

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

What Google rating do Cornelius plumbers have?

The median Google rating among 318 rated plumbers in Cornelius is 4.8★, with a median of 28 reviews. 3 Mountains Home Services has the most, 5,760 reviews, and ranks #23. 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Cornelius

  1. October 2026: CR Scores recalculated for 318 plumbers serving Cornelius.
  2. October 2026: 3 duplicate listings merged.

More plumbers and Cornelius pages

Other trades in Cornelius