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ContractorsRanked

Emergency Plumbers in Dundalk, MD (2026)

Top 50 of 496 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

24 of the 50 plumbers on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

The short answer

  1. 1

    #1 for emergency plumbing in Dundalk: Len The Plumber Heating & Air, LLC, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency plumbers in Dundalk at a glance

Top emergency plumbers in Dundalk at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Len The Plumber Heating & Air, LLC934.7★ (15,911)Arbutus, 8 mi away24/7
2Roto-Rooter Plumbing & Water Cleanup934.8★ (4,075)Baltimore, 6 mi away24/7
3Roto-Rooter Plumbing & Water Cleanup924.9★ (614)Dundalk24/7
4Prime Plumbing914.8★ (2,323)Glen Burnie, 8 mi away24/7
5Elite Plumbing & Home Services914.9★ (228)Dundalk24/7
6Roto-Rooter Plumbing & Water Cleanup914.9★ (1,074)Arbutus, 9 mi away24/7
7Catons Plumbing, Drains & Water Cleanup904.8★ (560)Baltimore, 5 mi away24/7
8Mahon Plumbing904.9★ (268)Baltimore, 4 mi away24/7
9Greer Plumbing & Water Heater Repair894.9★ (450)Pasadena, 9 mi away24/7
10Trust Plumbing & Heating, LLC895.0★ (143)Baltimore, 4 mi away24/7

Call an emergency plumber in Dundalk now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency plumbers in Dundalk, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 496 is on the plumbers page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  4. #4 Prime Plumbing

    Based in Glen Burnie, 8 mi away

    91/100CR Score

    Ranked #4 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
    View profile for Prime Plumbing(443) 247-4400

  8. #8 Mahon Plumbing

    Based in Baltimore, 4 mi away

    90/100CR Score

    Ranked #8 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
    View profile for Mahon Plumbing(410) 766-8566

  18. #18 Abend Services

    Based in Baltimore, 6 mi away

    88/100CR Score

    Ranked #18 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
    View profile for Abend Services(443) 516-9224

  19. #19 Donovan WaterWorks

    Based in Cockeysville, 16 mi away

    88/100CR Score

    Ranked #19 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
    View profile for Donovan WaterWorks(410) 240-5299

  25. #25 Hardy Plumbing | Emergency Plumber, Drain Cleaning, Pipe Repair, Tankless Water Heater Repair and Replacement in Towson MD

    Based in Towson, 10 mi away

    88/100CR Score

    Ranked #25 because of its Google rating and availability: 5.0★ from 151 Google reviews, offers emergency service.

    • 5.0★ from 151 Google reviews
    • Emergency service
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    8517 Loch Raven Blvd, Towson, MD 21286
    View profile for Hardy Plumbing | Emergency Plumber, Drain Cleaning, Pipe Repair, Tankless Water Heater Repair and Replacement in Towson MD(443) 247-0101

Top 50 of 496 plumbers by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

plumbers in Dundalk, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Catons Plumbing, Drains & Water Cleanup874.8★ (565)15 mi
27Perfect Plumbing874.7★ (196)7 mi
28TNT Plumbing & Drain Service, LLC874.9★ (110)8 mi
29Park Plumbing LLC875.0★ (178)13 mi
30Roto-Rooter Plumbing & Water Cleanup874.8★ (1,128)19 mi
311st Choice Plumbing & Backflow Prevention, LLC874.9★ (113)10 mi
32Howard Plumbing874.9★ (521)18 mi
33Liberty Pure Solutions874.9★ (553)19 mi
34Beltway Air Conditioning, Heating & Plumbing874.9★ (2,167)11 mi
35Abend Services874.9★ (146)12 mi
36Catons Plumbing, Drains & Water Cleanup874.9★ (142)11 mi
37Abbott's Plumbing874.6★ (426)11 mi
38Brian B. Quick Plumbing874.9★ (946)22 mi
39LJ Butler Plumbing and Heating874.9★ (105)10 mi
40Benjamin Franklin Plumbing of Columbia874.9★ (257)16 mi
41Michael & Son Services874.7★ (8,039)4 mi
42Catons Plumbing, Drains & Water Cleanup875.0★ (312)19 mi
43Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical874.8★ (4,514)14 mi
44Stilwell Plumbing & Drain Cleaning874.3★ (320)4 mi
45Calvert Plumbing and Backflow Services875.0★ (88)6 mi
46F.H. Furr Plumbing, Heating, Air Conditioning & Electrical864.8★ (1,788)11 mi
47All Nite Sewer & Drain Cleaning, LLC.864.6★ (60)5 mi
48Drew & Sons Plumbing Corp864.8★ (199)9 mi
49Redbeard Plumbing, LLC865.0★ (102)15 mi
50Hosanna Plumbing & Drain LLC865.0★ (67)12 mi

How we ranked emergency plumbers in Dundalk

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency plumbers in Dundalk: questions

Which plumbers in Dundalk are open 24/7?

24 on this list post 24/7 hours, including Len The Plumber Heating & Air, LLC, Roto-Rooter Plumbing & Water Cleanup, Roto-Rooter Plumbing & Water Cleanup, Prime Plumbing and Elite Plumbing & Home Services.

Who is ranked #1 for emergency plumbing in Dundalk, MD?

Len The Plumber Heating & Air, LLC is #1, with a CR Score of 93 out of 100 on emergency weights.

How are emergency plumbers in Dundalk ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 plumbers are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the plumber arrives?

Burst pipe or major leak: shut off the main water valve first. If water reaches outlets or the panel, stay clear and call 911.

How many emergency plumbers here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Dundalk

  1. October 2026: CR Scores recalculated for 496 plumbers serving Dundalk.
  2. October 2026: 6 duplicate listings merged.

More emergency and plumbing pages