15 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Duncan: Vermillion Plumbing LLC, CR Score 61/100; 4.6★ from 178 Google reviews.
Best for emergencies (open 24/7): Elite Irrigation & Drainage Systems, posts 24/7 hours; ranked #2 of 15.
Most-reviewed: Elite Irrigation & Drainage Systems, 98 Google reviews at 4.8★, the most of 15 ranked after Vermillion Plumbing LLC; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
15 Duncan plumbers are ranked here by CR Score, from ten published factors. 2 are open 24/7, 2 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.4★ across 15 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Vermillion Plumbing LLC | 61 | 4.6★ (178) | Duncan | — | Overall |
| 2 | Elite Irrigation & Drainage Systems | 61 | 4.8★ (98) | Lawton, 19 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Justus Plumbing | 57 | 4.4★ (52) | Duncan | — | — |
| 4 | Punneo Plumbing | 57 | 4.3★ (51) | Duncan | — | — |
| 5 | Chasteen Plumbing | 56 | 4.6★ (9) | Duncan | — | — |
| 6 | Dismuke Plumbing | 56 | 4.0★ (46) | Duncan | — | — |
| 7 | Copper Fox Plumbing | 55 | 4.9★ (16) | Duncan | — | — |
| 8 | Karls Plumbing | 55 | 4.1★ (34) | Duncan | — | — |
| 9 | Chasteen Plumbing | 55 | 4.0★ (8) | Duncan | — | — |
| 10 | Josh Smith Plumbing, LLC | 54 | 4.7★ (12) | Duncan | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.6★ from 178 Google reviews, the most in Duncan.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lawton, 19 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 98 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #3 because of its Google rating and trade focus: 4.4★ from 52 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #4 because of its Google rating and trade focus: 4.3★ from 51 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #5 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duncan
Ranked #6 because of its Google rating and trade focus: 4.0★ from 46 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #7 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #8 because of its Google rating and trade focus: 4.1★ from 34 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #9 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Duncan
Ranked #10 because of its Google rating and trade focus: 4.7★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #11 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #12 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Lawton, 21 mi away
Ranked #13 because of its Google rating and trade focus: 3.0★ from 26 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lawton, 25 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Duncan
Ranked #15 because of its Google rating and review volume: 3.4★ from 15 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
7 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.
| Business | Google rating | Distance |
|---|---|---|
| DeHart Air Conditioning | 4.7★ (109) | In Duncan |
| Delta Corporation of Oklahoma | In Duncan | |
| Flow State Plumbing Solutions | 5.0★ (2) | In Duncan |
| Harvey Jung's Plumbing & Heating | In Duncan | |
| Kickapoo Plumbing | In Duncan | |
| O Tex Pumping LLC | 4.5★ (2) | In Duncan |
| Oklahoma Plumbing & Mechanical Services LLC | In Duncan |
National price ranges in USD, not adjusted for Duncan. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
In Oklahoma, Oklahoma Construction Industries Board licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.
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
We scored 15 Duncan 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.
| Factor | Weight | Computed from | In Duncan data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |