34 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waterloo: Young Plumbing & Heating, CR Score 65/100; 4.9★ from 484 Google reviews; open 24/7.
Best for emergencies (open 24/7): A-1 Sewer & Drain Cleaning Service, posts 24/7 hours; ranked #2 of 34.
Most-reviewed: Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc., 2,581 Google reviews at 4.7★, the most of 34 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
34 Waterloo plumbers are ranked here by CR Score, from ten published factors. 7 are open 24/7, 9 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.2★ across 34 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Young Plumbing & Heating | 65 | 4.9★ (484) | Waterloo | 24/7 | Overall |
| 2 | A-1 Sewer & Drain Cleaning Service | 63 | 4.9★ (103) | Waterloo | 24/7 | Emergencies |
| 3 | Dalton Plumbing, Heating, Cooling, Electric and Fireplaces, Inc. | 62 | 4.7★ (2,581) | Cedar Falls, 5 mi away | 24/7 | Most reviews |
| 4 | Cedar Valley Water and Sewer | 58 | 5.0★ (13) | Cedar Falls, 1 mi away | 24/7 | — |
| 5 | RainSoft of NE Iowa | 57 | 4.6★ (221) | Waterloo | — | — |
| 6 | Blue Cobra Sewer and Drain Cleaning Services, LLC | 56 | 2.8★ (4) | Waterloo | 24/7 | — |
| 7 | Bergen Plumbing, Heating & Cooling | 55 | 4.5★ (17) | Waterloo | 24/7 | — |
| 8 | Drain Doctor | 54 | 3.3★ (57) | Waterloo | Sat · Sun · Evenings | — |
| 9 | Poyner Plumbing | 54 | 4.1★ (9) | Waterloo | — | — |
| 10 | Nick's Sewer & Drain Cleaning | 54 | 3.7★ (12) | Waterloo | — | — |
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 trade focus: 4.9★ from 484 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #2 because of its Google rating and trade focus: 4.9★ from 103 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cedar Falls, 5 mi away
Ranked #3 because of its Google rating and review volume: 4.7★ from 2,581 Google reviews, the most in Waterloo.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cedar Falls, 1 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #5 because of its Google rating and trade focus: 4.6★ from 221 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #6 because of its Google rating and trade focus: 2.8★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #7 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #8 because of its Google rating and trade focus: 3.3★ from 57 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #9 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterloo
Ranked #10 because of its Google rating and trade focus: 3.7★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterloo
Ranked #11 because of its Google rating and trade focus: 3.8★ from 19 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #12 because of its Google rating and trade focus: 4.2★ from 33 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #13 because of its Google rating and trade focus: 3.2★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterloo
Ranked #14 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterloo
Ranked #15 because of its Google rating and trade focus: 3.2★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cedar Falls, 2 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #17 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #18 because of its Google rating and trade focus: 4.4★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Cedar Falls, 7 mi away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 14 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #20 because of its Google rating and trade focus: 2.4★ from 32 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Waterloo
Ranked #21 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #22 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #23 because of its Google rating and trade focus: 2.7★ from 18 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #24 because of its Google rating and trade focus: 4.9★ from 17 Google reviews, listed on Google as “Mechanical contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #25 because of its Google rating and trade focus: 4.2★ from 48 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #34, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Precision Plumbing Heating & Air Llc | 49 | 5.0★ (30) | 23 mi |
| 27 | Crystal | 49 | 4.2★ (32) | 18 mi |
| 28 | Peterson Hudson Hdwe. Plumbing & Heating | 47 | 2.0★ (3) | 6 mi |
| 29 | McDonald Supply - Waterloo | 46 | 4.3★ (11) | In Waterloo |
| 30 | Gary Hinderaker Plumbing Heating Air Conditioning, Inc. | 45 | 4.7★ (12) | 16 mi |
| 31 | Irvine Water Conditioning & Plumbing | 45 | 4.8★ (36) | 25 mi |
| 32 | Johnson Plumbing Heating & Cooling | 44 | 3.7★ (43) | 23 mi |
| 33 | Burrier Plumbing & Spas, Inc. | 44 | 3.6★ (13) | 17 mi |
| 34 | Independence Plumbing Heating & Cooling | 43 | 4.1★ (27) | 22 mi |
15 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 |
|---|---|---|
| A-1 Septic Services LLC | 23 mi | |
| Affordable Plumbing & Heating | 22 mi | |
| Andy's Plumbing & Heating Inc | 4.5★ (2) | In Waterloo |
| Black Hawk Plumbing | 1.0★ (2) | In Waterloo |
| Bovy Plumbing | 5.0★ (1) | In Waterloo |
| Dalton Plumbing Heating & Cooling | 17 mi | |
| Geer Plumbing LLC | 15 mi | |
| Honest and Affordable Plumbing and Home Remodeling | 5.0★ (1) | In Waterloo |
| Hovey's Drain Cleaning Inc | 1.0★ (1) | 6 mi |
| Lee's Heating Cooling & Plumbing | In Waterloo | |
| Michaelsen Plumbing Inc | In Waterloo | |
| Miller Mechanical Contractors | In Waterloo | |
| Plumbing Solutions LLC | 5.0★ (1) | 6 mi |
| Ron's Plumbing & Heating & AC | 1.0★ (1) | 23 mi |
| Sandys Stitchin | 5.0★ (1) | 15 mi |
National price ranges in USD, not adjusted for Waterloo. 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 Iowa, Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals and Licensing) 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 34 Waterloo 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 Waterloo 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 |