654 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ellicott City: Len The Plumber Heating & Air, LLC, CR Score 65/100; 4.7★ from 15,911 Google reviews; open 24/7.
Best for emergencies (open 24/7): Roto-Rooter Plumbing & Water Cleanup, posts 24/7 hours; ranked #2 of 654.
Most-reviewed: Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical, 4,514 Google reviews at 4.8★, the most of 654 ranked after Len The Plumber Heating & Air, LLC; ranked #14.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
654 Ellicott City plumbers are ranked here by CR Score, from ten published factors. 213 are open 24/7, 370 open Saturdays and 273 open Sundays, based on posted hours. The median Google rating is 4.9★ across 654 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Len The Plumber Heating & Air, LLC | 65 | 4.7★ (15,911) | Arbutus, 7 mi away | 24/7 | Overall |
| 2 | Roto-Rooter Plumbing & Water Cleanup | 64 | 4.8★ (956) | Ellicott City | 24/7 | Emergencies |
| 3 | Catons Plumbing, Drains & Water Cleanup | 63 | 4.7★ (1,684) | Catonsville, 3 mi away | 24/7 | — |
| 4 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.8★ (4,075) | Baltimore, 10 mi away | 24/7 | — |
| 5 | Catons Plumbing, Drains & Water Cleanup | 63 | 4.8★ (565) | Ellicott City | 24/7 | — |
| 6 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.8★ (1,242) | Elkridge, 5 mi away | 24/7 | — |
| 7 | Roto-Rooter Plumbing & Water Cleanup | 63 | 4.9★ (1,074) | Arbutus, 8 mi away | 24/7 | — |
| 8 | Prime Plumbing | 62 | 4.8★ (2,323) | Glen Burnie, 13 mi away | 24/7 | — |
| 9 | Benjamin Franklin Plumbing of Columbia | 62 | 4.9★ (257) | Columbia, 4 mi away | 24/7 | — |
| 10 | Mr. Rooter Plumbing of Greater Baltimore | 61 | 4.8★ (1,366) | Baltimore, 7 mi away | Sat · Sun · Evenings | — |
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.
Ranked #1 because of its Google rating and review volume: 4.7★ from 15,911 Google reviews, the most in Ellicott City.
Based in Ellicott City
Ranked #2 because of its Google rating and trade focus: 4.8★ from 956 Google reviews, listed on Google as “Plumber”.
Based in Catonsville, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 1,684 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 10 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 4,075 Google reviews, listed on Google as “Plumber”.
Based in Ellicott City
Ranked #5 because of its Google rating and trade focus: 4.8★ from 565 Google reviews, listed on Google as “Plumber”.
Based in Elkridge, 5 mi away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 1,242 Google reviews, listed on Google as “Plumber”.
Based in Arbutus, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 1,074 Google reviews, listed on Google as “Plumber”.
Based in Glen Burnie, 13 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 2,323 Google reviews, listed on Google as “Plumber”.
Based in Columbia, 4 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 257 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 7 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 1,366 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 8 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 326 Google reviews, listed on Google as “Plumber”.
Based in Reisterstown, 14 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 946 Google reviews, listed on Google as “Plumber”.
Based in Columbia, 6 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 140 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 5 mi away
Ranked #14 because of its Google rating and review volume: 4.8★ from 4,514 Google reviews.
Based in Eldersburg, 11 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 542 Google reviews, listed on Google as “Plumber”.
Based in Arbutus, 7 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 157 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 10 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 400 Google reviews, listed on Google as “Plumber”.
Based in Baltimore, 10 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 560 Google reviews, listed on Google as “Plumber”.
Based in Beltsville, 18 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 1,368 Google reviews, listed on Google as “Plumber”.
Based in Elkridge, 6 mi away
Ranked #20 because of its Google rating and trade focus: 4.6★ from 426 Google reviews, listed on Google as “Plumber”.
Based in Dundalk, 15 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 614 Google reviews, listed on Google as “Plumber”.
Based in Cockeysville, 16 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 691 Google reviews, listed on Google as “Plumber”.
Based in Beltsville, 16 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 1,053 Google reviews, listed on Google as “Plumber”.
Based in Towson, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 752 Google reviews, listed on Google as “Plumber”.
Based in Eldersburg, 12 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 216 Google reviews, listed on Google as “Plumber”.
#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 654 ranked plumbers here; the rest are on their profiles.
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.
| Business | Google rating | Distance |
|---|---|---|
| AAB Drain Cleaning | 5.0★ (2) | 9 mi |
| All Clear Plumbing & Drain Service, LLC | 4.8★ (547) | 12 mi |
| Around the Clock Plumbing & Heating | 5.0★ (2) | 7 mi |
| Bay Associates Group, Inc. | 3.0★ (2) | 14 mi |
| Cathcart Construction Inc | 5.0★ (2) | 4 mi |
| Coutts Plumbing, Inc | 5.0★ (2) | 13 mi |
| Davis Plumbing & Heating Inc | 5.0★ (2) | 11 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 15 mi |
| Ecker Plumbing | 5.0★ (2) | 12 mi |
| Hardy Plumbing | Emergency Plumber, Drain Cleaning, Pipe Repair, Tankless Water Heater Repair and Replacement in Towson MD | 5.0★ (151) | 15 mi |
| Lloyd Plumbing Corporation | In Ellicott City | |
| Sam Plumbing And Drain, LLC | 5.0★ (2) | 10 mi |
| Scardina Plumbing-Heating Inc | 5.0★ (2) | 11 mi |
| SLO-FLO Plumbing | 5.0★ (213) | 13 mi |
| SLS Services | 3.0★ (2) | 16 mi |
| TechStar Services | 5.0★ (2) | 15 mi |
| TNT Plumbing & Drain Service, LLC | 4.9★ (110) | 8 mi |
| W. A. Booth Plumbing Services llc | 5.0★ (204) | 15 mi |
| Worldwide Corporation | 4.5★ (2) | 11 mi |
| Your 1 Plumber | 3.0★ (2) | 8 mi |
National price ranges in USD, not adjusted for Ellicott City. 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 Maryland, Maryland State Board of Plumbing 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 654 Ellicott City 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 Ellicott City 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 |