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Emergency Plumbers in Hanover, MD (2026)

Top 50 of 671 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 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 Hanover: 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 Hanover at a glance

Top emergency plumbers in Hanover at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Len The Plumber Heating & Air, LLC664.7★ (15,911)Arbutus, 5 mi away24/7
2Roto-Rooter Plumbing & Water Cleanup644.8★ (1,242)Elkridge, 2 mi away24/7
3Roto-Rooter Plumbing & Water Cleanup644.9★ (1,074)Arbutus, 3 mi away24/7
4Prime Plumbing644.8★ (2,323)Glen Burnie, 7 mi away24/7
5Roto-Rooter Plumbing & Water Cleanup644.8★ (4,075)Baltimore, 9 mi away24/7
6Catons Plumbing, Drains & Water Cleanup634.7★ (1,684)Catonsville, 6 mi away24/7
7Roto-Rooter Plumbing & Water Cleanup634.8★ (956)Ellicott City, 7 mi away24/7
8Abbott's Plumbing624.6★ (426)Elkridge, 1 mi away24/7
9Catons Plumbing, Drains & Water Cleanup624.8★ (565)Ellicott City, 7 mi away24/7
10Sewer Slayer625.0★ (157)Arbutus, 2 mi away24/7

Call an emergency plumber in Hanover 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 Hanover, 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 671 is on the plumbers page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  4. #4 Prime Plumbing

    Based in Glen Burnie, 7 mi away

    64/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 2,323 Google reviews, listed on Google as “Plumber”.

    • 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 Abbott's Plumbing

    Based in Elkridge, 1 mi away

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.6★ from 426 Google reviews, listed on Google as “Plumber”.

    • 4.6★ from 426 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6149 Washington Blvd, Elkridge, MD 21075
    View profile for Abbott's Plumbing(410) 536-5700

  10. #10 Sewer Slayer

    Based in Arbutus, 2 mi away

    62/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 157 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 157 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Sewer Slayer(443) 763-9194

  13. #13 SLO-FLO Plumbing

    Based in Severn, 6 mi away

    62/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 213 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 213 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    792 Jennie Dr, Severn, MD 21144
    View profile for SLO-FLO Plumbing(443) 734-8609

  20. #20 Perfect Plumbing

    Based in Arbutus, 4 mi away

    61/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.7★ from 196 Google reviews, listed on Google as “Plumber”.

    • 4.7★ from 196 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    803 Barkwood Ct Suite G, Linthicum Heights, MD 21090
    View profile for Perfect Plumbing(443) 572-6116

  23. #23 Mahon Plumbing

    Based in Baltimore, 9 mi away

    61/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “Plumber”.

    • 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

Top 50 of 671 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 Hanover, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Abend Services614.8★ (175)6 mi
27Bailey Bros. Plumbing & Drain Services615.0★ (154)8 mi
28Nick's Plumbing614.9★ (78)3 mi
29F.H. Furr Plumbing, Heating, Air Conditioning & Electrical614.8★ (1,788)4 mi
30Get Back Plumbing604.9★ (104)5 mi
31Ahoy Plumbing605.0★ (140)9 mi
32Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical604.8★ (4,514)10 mi
33Trust Plumbing & Heating, LLC605.0★ (143)9 mi
34Roto-Rooter Plumbing & Water Cleanup604.8★ (752)16 mi
35Roto-Rooter Plumbing & Water Cleanup604.8★ (1,324)4 mi
36Brian B. Quick Plumbing604.9★ (946)20 mi
37Hosanna Plumbing & Drain LLC605.0★ (67)6 mi
38Elite Plumbing & Home Services604.9★ (228)13 mi
39Roto-Rooter Plumbing & Water Cleanup604.8★ (1,128)20 mi
40Donovan WaterWorks604.9★ (691)19 mi
41Howard Plumbing604.9★ (521)18 mi
42Roto-Rooter Plumbing & Water Cleanup604.9★ (542)18 mi
43Park Plumbing LLC595.0★ (178)13 mi
44AT plumbing and Gas Fitting595.0★ (27)3 mi
45Boothe's Heating, Air, Plumbing, Drains & Electrical594.9★ (1,461)9 mi
46Abend Services594.9★ (146)12 mi
47ARS / Rescue Rooter594.4★ (3,510)7 mi
48Calvert Plumbing and Backflow Services595.0★ (88)12 mi
49Drew & Sons Plumbing Corp594.8★ (199)14 mi
50Catons Plumbing, Drains & Water Cleanup595.0★ (312)19 mi

How we ranked emergency plumbers in Hanover

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency plumbers in Hanover: questions

Which plumbers in Hanover are open 24/7?

25 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 Roto-Rooter Plumbing & Water Cleanup.

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

Len The Plumber Heating & Air, LLC is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency plumbers in Hanover ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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 Hanover

  1. October 2026: CR Scores recalculated for 671 plumbers serving Hanover.
  2. October 2026: 7 duplicate listings merged.

More emergency and plumbing pages