94/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 4,075 Google reviews, open 24/7.
- 4.8★ from 4,075 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 516 N Charles St Ste 407, Baltimore, MD 21201
Best Plumbers in Baltimore, MD (2026)
520 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Baltimore: Roto-Rooter Plumbing & Water Cleanup, CR Score 94/100; 4.8★ from 4,075 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Len The Plumber Heating & Air, LLC, posts 24/7 hours; ranked #2 of 520.
- 2
Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 520 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
520 Baltimore plumbers are ranked here by CR Score, from 8 published factors. 165 are open 24/7, 297 open Saturdays and 207 open Sundays, based on posted hours. The median Google rating is 4.9★ across 520 rated businesses.
Top 10 plumbers in Baltimore at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Plumbing & Water Cleanup | 94 | 4.8★ (4,075) | Baltimore | 24/7 | Overall |
| 2 | Len The Plumber Heating & Air, LLC | 93 | 4.7★ (15,911) | Arbutus, 4 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Warrior Plumbing & Heating | 91 | 4.9★ (400) | Baltimore | 24/7 | — |
| 4 | Roto-Rooter Plumbing & Water Cleanup | 91 | 4.9★ (1,074) | Arbutus, 6 mi away | 24/7 | — |
| 5 | Benjamin Franklin Plumbing of Baltimore | 91 | 4.9★ (326) | Baltimore | 24/7 | — |
| 6 | Catons Plumbing, Drains & Water Cleanup | 91 | 4.8★ (560) | Baltimore | 24/7 | — |
| 7 | Mahon Plumbing | 91 | 4.9★ (268) | Baltimore | 24/7 | — |
| 8 | Prime Plumbing | 90 | 4.8★ (2,323) | Glen Burnie, 9 mi away | 24/7 | — |
| 9 | Roto-Rooter Plumbing & Water Cleanup | 90 | 4.9★ (614) | Dundalk, 5 mi away | 24/7 | — |
| 10 | Trust Plumbing & Heating, LLC | 90 | 5.0★ (143) | Baltimore | 24/7 | — |
The 520 best plumbers in Baltimore, 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.
Based in Arbutus, 4 mi away
93/100CR ScoreRanked #2 because of its Google rating and review volume: 4.7★ from 15,911 Google reviews, the most Google reviews on this list (15,911).
- 4.7★ from 15,911 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3610 Commerce Dr Suite 808, Halethorpe, MD 21227
Based in Baltimore
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 400 Google reviews, open 24/7.
- 4.9★ from 400 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4123 Roland Ave, Baltimore, MD 21211
Based in Arbutus, 6 mi away
91/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 1,074 Google reviews, open 24/7.
- 4.9★ from 1,074 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 505 Progress Dr #119, Linthicum Heights, MD 21090
Based in Baltimore
91/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 326 Google reviews, open 24/7.
- 4.9★ from 326 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3702 Yosemite Ave, Baltimore, MD 21215
Based in Baltimore
91/100CR ScoreRanked #6 because of its Google rating and availability: 4.8★ from 560 Google reviews, open 24/7.
- 4.8★ from 560 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 616 Water St #316, Baltimore, MD 21202
Based in Baltimore
91/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 268 Google reviews, open 24/7.
- 4.9★ from 268 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6824 Fort Smallwood Rd Ste. A, Baltimore, MD 21226
Based in Glen Burnie, 9 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 4.8★ from 2,323 Google reviews, open 24/7.
- 4.8★ from 2,323 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7617 Baltimore Annapolis Blvd, Glen Burnie, MD 21060
Based in Dundalk, 5 mi away
90/100CR ScoreRanked #9 because of its Google rating and availability: 4.9★ from 614 Google reviews, open 24/7.
- 4.9★ from 614 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 38 S Dundalk Ave Ste C-LL, Dundalk, MD 21222
Based in Baltimore
90/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 143 Google reviews, open 24/7.
- 5.0★ from 143 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6309 Fort Smallwood Rd Suite 5, Baltimore, MD 21226
Based in Baltimore
90/100CR ScoreRanked #11 because of its Google rating and availability: 4.8★ from 4,514 Google reviews, open 24/7.
- 4.8★ from 4,514 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2607 Rolling Rd. #201, Windsor Mill, MD 21244
Based in Catonsville, 8 mi away
89/100CR ScoreRanked #12 because of its Google rating and availability: 4.7★ from 1,684 Google reviews, open 24/7.
- 4.7★ from 1,684 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 801 Geipe Rd, Catonsville, MD 21228
#13 Abend Services
Based in Baltimore
89/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 175 Google reviews, open 24/7.
- 4.8★ from 175 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 407 Bon Air Ave, Baltimore, MD 21225
Based in Baltimore
89/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 104 Google reviews, open 24/7.
- 4.9★ from 104 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2817 Manoff Rd, Halethorpe, MD 21227
Based in Towson, 8 mi away
89/100CR ScoreRanked #15 because of its Google rating and availability: 4.8★ from 752 Google reviews, open 24/7.
- 4.8★ from 752 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 606 Baltimore Ave Ste 402-E, Towson, MD 21204
Based in Elkridge, 11 mi away
89/100CR ScoreRanked #16 because of its Google rating and availability: 4.8★ from 1,242 Google reviews, open 24/7.
- 4.8★ from 1,242 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6500 Kane Way Ste B, Elkridge, MD 21075
Based in Cockeysville, 12 mi away
89/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 691 Google reviews, open 24/7.
- 4.9★ from 691 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9720 Greenside Dr #9w, Cockeysville, MD 21030
Based in Ellicott City, 10 mi away
89/100CR ScoreRanked #18 because of its Google rating and availability: 4.8★ from 956 Google reviews, open 24/7.
- 4.8★ from 956 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3545 Ellicott Mills Dr Ste 102, Ellicott City, MD 21043
Based in Baltimore
89/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 1,366 Google reviews, listed on Google as “Plumber”.
- 4.8★ from 1,366 Google reviews
- Hours
- Mon–Sat 7:30 AM–7:30 PM · Sun 8 AM–5 PM
- Address
- 3701 Commerce Dr Suite 105, Baltimore, MD 21227
#20 Sewer Slayer
Based in Arbutus, 7 mi away
89/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 157 Google reviews, open 24/7.
- 5.0★ from 157 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Pasadena, 12 mi away
88/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 450 Google reviews, open 24/7.
- 4.9★ from 450 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3017 Mountain Rd, Pasadena, MD 21122
Based in Ellicott City, 10 mi away
88/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 565 Google reviews, open 24/7.
- 4.8★ from 565 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3696 Park Ave #204, Ellicott City, MD 21043
Based in Dundalk, 8 mi away
88/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 228 Google reviews, open 24/7.
- 4.9★ from 228 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Reisterstown, 17 mi away
88/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 946 Google reviews, open 24/7.
- 4.9★ from 946 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 218 Main St Suite 4, Reisterstown, MD 21136
Based in Baltimore
88/100CR ScoreRanked #25 because of its Google rating and availability: 4.8★ from 199 Google reviews, open 24/7.
- 4.8★ from 199 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6116 MacBeth Dr #6300, Baltimore, MD 21239
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 520 ranked plumbers here; the rest are on their profiles.
Also serving Baltimore
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.
How much do plumbers cost in Baltimore?
National price ranges in USD, not adjusted for Baltimore. 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 |
How to check a plumber's license in Maryland
In Maryland, Maryland State Board of Plumbing licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.
- Check that the status is active and the name matches the contract or truck.
- 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 Baltimore plumbers
We scored 520 Baltimore 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.
| Factor | Weight | Computed from | In Baltimore data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Plumbers in Baltimore: frequently asked questions
Who is the best plumber in Baltimore?
By CR Score, the highest-ranked plumber in Baltimore, MD is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 94/100. It has 4.8★ from 4,075 Google reviews. It is open 24/7. Len The Plumber Heating & Air, LLC (#2) and Warrior Plumbing & Heating (#3) follow. We ranked 520 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Baltimore?
ContractorsRanked ranks 520 plumbers serving Baltimore, MD. 15 of them are based in Baltimore; 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 Baltimore are open 24/7?
165 ranked plumbers in Baltimore post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), Len The Plumber Heating & Air, LLC (#2) and Warrior Plumbing & Heating (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Baltimore work on weekends?
297 of 520 ranked plumbers post Saturday hours and 207 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), Len The Plumber Heating & Air, LLC (#2) and Warrior Plumbing & Heating (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check a plumber's license in Maryland?
In Maryland, Maryland State Board of Plumbing handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures.
How much does water heater replacement cost in Baltimore?
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 Baltimore. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Baltimore plumbers have?
The median Google rating among 520 rated plumbers in Baltimore is 4.9★, with a median of 28 reviews. Len The Plumber Heating & Air, LLC has the most, 15,911 reviews, and ranks #2. 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 Baltimore
- October 2026: CR Scores recalculated for 520 plumbers serving Baltimore.
- October 2026: 6 duplicate listings merged.
More plumbers and Baltimore pages
Plumbers near Baltimore
- Plumbers in Charles Village, MD510 ranked
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- Plumbers in Rosedale, MD466 ranked
- Plumbers in Dundalk, MD496 ranked
- Plumbers in Linthicum, MD579 ranked
- Plumbers in Catonsville, MD613 ranked
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