92/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 1,061 Google reviews, open 24/7.
- 4.8★ from 1,061 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 30 Courthouse Sq # 301, Rockville, MD 20850
Best Plumbers in Rockville, MD (2026)
862 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rockville: Roto-Rooter Plumbing & Water Cleanup, CR Score 92/100; 4.8★ from 1,061 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Roto-Rooter Plumbing & Water Cleanup, posts 24/7 hours; ranked #2 of 862.
- 34
Most-reviewed: Len The Plumber Heating & Air, LLC, 8,136 Google reviews at 4.6★, the most of 862 ranked; ranked #34.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
862 Rockville plumbers are ranked here by CR Score, from 8 published factors. 296 are open 24/7, 547 open Saturdays and 419 open Sundays, based on posted hours. The median Google rating is 4.8★ across 862 rated businesses.
Top 10 plumbers in Rockville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roto-Rooter Plumbing & Water Cleanup | 92 | 4.8★ (1,061) | Rockville | 24/7 | Overall |
| 2 | Roto-Rooter Plumbing & Water Cleanup | 90 | 4.8★ (2,719) | Washington, D.C., 11 mi away | 24/7 | Emergencies |
| 3 | MoCo Plumbing, LLC | 90 | 5.0★ (482) | Germantown, 9 mi away | 24/7 | — |
| 4 | Roto-Rooter Plumbing & Water Cleanup | 90 | 4.8★ (1,211) | Bethesda, 8 mi away | 24/7 | — |
| 5 | Handyman At Your Command | 90 | 4.9★ (296) | Bethesda, 4 mi away | 24/7 | — |
| 6 | Brian B. Quick Plumbing | 89 | 4.9★ (1,368) | Beltsville, 14 mi away | 24/7 | — |
| 7 | F.H. Furr Plumbing, Heating, Air Conditioning & Electrical | 89 | 4.7★ (5,985) | Rockville | 24/7 | — |
| 8 | Service Force Plumbing | 89 | 4.9★ (652) | Rockville | Sat · Sun · Evenings | — |
| 9 | Benjamin Franklin Plumbing of Silver Spring | 89 | 4.8★ (417) | Silver Spring, 7 mi away | 24/7 | — |
| 10 | Roto-Rooter Plumbing & Water Cleanup | 88 | 4.9★ (571) | Arlington, 13 mi away | 24/7 | — |
The 862 best plumbers in Rockville, 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 Washington, D.C., 11 mi away
90/100CR ScoreRanked #2 because of its Google rating and availability: 4.8★ from 2,719 Google reviews, open 24/7.
- 4.8★ from 2,719 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5125 MacArthur Blvd NW Ste 13, Washington, DC 20016
Based in Germantown, 9 mi away
90/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 482 Google reviews, open 24/7.
- 5.0★ from 482 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 17225 Black Rock Rd, Germantown, MD 20874
Based in Bethesda, 8 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 4.8★ from 1,211 Google reviews, open 24/7.
- 4.8★ from 1,211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4641 Montgomery Ave Ste 518, Bethesda, MD 20814
Based in Bethesda, 4 mi away
90/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 296 Google reviews, open 24/7.
- 4.9★ from 296 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6701 Democracy Blvd Suite 362, Bethesda, MD 20817
Based in Beltsville, 14 mi away
89/100CR ScoreRanked #6 because of its Google rating and availability: 4.9★ from 1,368 Google reviews, open 24/7.
- 4.9★ from 1,368 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10739 Tucker St Suite 100-B, Beltsville, MD 20705
Based in Rockville
89/100CR ScoreRanked #7 because of its Google rating and availability: 4.7★ from 5,985 Google reviews, open 24/7.
- 4.7★ from 5,985 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 685 Lofstrand Ln, Rockville, MD 20850
Based in Rockville
89/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 652 Google reviews, listed on Google as “Plumber”.
- 4.9★ from 652 Google reviews
- Hours
- Mon–Thu 7 AM–9 PM · Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 706B E Gude Dr #3, Rockville, MD 20850
Based in Silver Spring, 7 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 417 Google reviews, open 24/7.
- 4.8★ from 417 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2600 Forest Glen Rd suite a, Silver Spring, MD 20910
Based in Arlington, 13 mi away
88/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 571 Google reviews, open 24/7.
- 4.9★ from 571 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2219 N Columbus St #204, Arlington, VA 22207
Based in Beltsville, 14 mi away
88/100CR ScoreRanked #11 because of its Google rating and availability: 4.8★ from 1,053 Google reviews, open 24/7.
- 4.8★ from 1,053 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 12000 Indian Creek Ct, Beltsville, MD 20705
Based in Alexandria, 20 mi away
88/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 1,720 Google reviews, open 24/7.
- 4.9★ from 1,720 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1727 King St Suite 123, Alexandria, VA 22314
Based in Arlington, 13 mi away
88/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 453 Google reviews, open 24/7.
- 4.9★ from 453 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2219B N Columbus St #304, Arlington, VA 22207
Based in Clarksburg, 10 mi away
88/100CR ScoreRanked #14 because of its Google rating and availability: 4.8★ from 452 Google reviews, open 24/7.
- 4.8★ from 452 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Fairfax, 18 mi away
88/100CR ScoreRanked #15 because of its Google rating and availability: 4.8★ from 2,036 Google reviews, open 24/7.
- 4.8★ from 2,036 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10560 Main St Suite PS 100, Fairfax, VA 22030
Based in Alexandria, 21 mi away
88/100CR ScoreRanked #16 because of its Google rating and availability: 4.7★ from 6,899 Google reviews, open 24/7.
- 4.7★ from 6,899 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6598B Fleet Dr, Alexandria, VA 22310
#17 Big Guy Plumbing
Based in Catonsville, 5 mi away
88/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 71 Google reviews, open 24/7.
- 5.0★ from 71 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Germantown, 9 mi away
88/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 128 Google reviews, open 24/7.
- 5.0★ from 128 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13238 Executive Park Terrace Ste 1, Germantown, MD 20874
Based in Rockville
88/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 34 Google reviews, open 24/7.
- 5.0★ from 34 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4 Monroe St, Rockville, MD 20850
Based in Silver Spring, 9 mi away
87/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 293 Google reviews, open 24/7.
- 4.8★ from 293 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 817 Silver Spring Ave Ste 110C, Silver Spring, MD 20910
Based in Sterling, 14 mi away
87/100CR ScoreRanked #21 because of its Google rating and availability: 4.8★ from 647 Google reviews, open 24/7.
- 4.8★ from 647 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 46179 Westlake Dr #330, Sterling, VA 20165
Based in Falls Church, 15 mi away
87/100CR ScoreRanked #22 because of its Google rating and availability: 4.9★ from 467 Google reviews, open 24/7.
- 4.9★ from 467 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7139 Noland Rd, Falls Church, VA 22042
Based in Germantown, 10 mi away
87/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 111 Google reviews, open 24/7.
- 5.0★ from 111 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13505 Deerwater Dr, Germantown, MD 20874
Based in Gaithersburg, 6 mi away
87/100CR ScoreRanked #24 because of its Google rating and availability: 4.8★ from 2,083 Google reviews, open 24/7.
- 4.8★ from 2,083 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7940 Cessna Ave, Gaithersburg, MD 20879
Based in Germantown, 9 mi away
87/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 87 Google reviews, open 24/7.
- 5.0★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 13414 Fountain Club Dr, Germantown, MD 20874
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 862 ranked plumbers here; the rest are on their profiles.
Also serving Rockville
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 |
|---|---|---|
| Air Supply Inc | In Rockville | |
| All Clear Plumbing & Drain Service, LLC | 4.8★ (547) | 17 mi |
| AMS Air Conditioning & Heating | 4.9★ (116) | In Rockville |
| Classic Drainage Inc. | 5.0★ (2) | 11 mi |
| Conrod's Plumbing Heating and A/C | 5.0★ (2) | 9 mi |
| Coutts Plumbing, Inc | 5.0★ (2) | 10 mi |
| Davis Plumbing & Heating Inc | 5.0★ (2) | 13 mi |
| DMV Plumbing Services | 5.0★ (2) | 5 mi |
| Ecker Plumbing | 5.0★ (2) | 12 mi |
| H Plumbing Inc. | 5.0★ (2) | 6 mi |
| Home Services at The Home Depot | 3.5★ (2) | 10 mi |
| Myers Plumbing Services Germantown MD | 5.0★ (2) | 10 mi |
| P W Scholl Plumbing & Heating Inc | 5.0★ (2) | 12 mi |
| R D Springer Plumbing & Heating | 5.0★ (2) | 11 mi |
| Rocket Rooter Plumbing | 3.0★ (2) | 3 mi |
| Rogers Plumbing | 3.0★ (2) | 7 mi |
| S.L. Johnson Plumbing & Heating | 3.0★ (2) | In Rockville |
| TechStar Services | 5.0★ (2) | 8 mi |
| TR Young Services, Inc. | 5.0★ (2) | 11 mi |
| WH Professional Plumbing Services | 5.0★ (2) | 9 mi |
How much do plumbers cost in Rockville?
National price ranges in USD, not adjusted for Rockville. 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 Rockville plumbers
We scored 862 Rockville 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 Rockville 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 Rockville: frequently asked questions
Who is the best plumber in Rockville?
By CR Score, the highest-ranked plumber in Rockville, MD is Roto-Rooter Plumbing & Water Cleanup with a CR Score of 92/100. It has 4.8★ from 1,061 Google reviews. It is open 24/7. Roto-Rooter Plumbing & Water Cleanup (#2) and MoCo Plumbing, LLC (#3) follow. We ranked 862 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Rockville?
ContractorsRanked ranks 862 plumbers serving Rockville, MD. 4 of them are based in Rockville; 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 Rockville are open 24/7?
296 ranked plumbers in Rockville post 24/7 hours. The highest-ranked are Roto-Rooter Plumbing & Water Cleanup (#1), Roto-Rooter Plumbing & Water Cleanup (#2) and MoCo Plumbing, LLC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Rockville work on weekends?
547 of 862 ranked plumbers post Saturday hours and 419 post Sunday hours. The highest-ranked open Saturdays are Roto-Rooter Plumbing & Water Cleanup (#1), Roto-Rooter Plumbing & Water Cleanup (#2) and MoCo Plumbing, LLC (#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 Rockville?
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 Rockville. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rockville plumbers have?
The median Google rating among 862 rated plumbers in Rockville is 4.8★, with a median of 30 reviews. Len The Plumber Heating & Air, LLC has the most, 8,136 reviews, and ranks #34. 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 Rockville
- October 2026: CR Scores recalculated for 862 plumbers serving Rockville.
- October 2026: 7 duplicate listings merged.
More plumbers and Rockville pages
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