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Emergency Plumbers in Frederick, MD (2026)

Top 50 of 221 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 Frederick: Outlook plumbing and Drain cleaning L.L.C, 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 Frederick at a glance

Top emergency plumbers in Frederick at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Outlook plumbing and Drain cleaning L.L.C915.0★ (138)Frederick24/7
2Zo Plumbing and Drain Cleaning LLC914.9★ (134)Frederick24/7
3Benjamin Franklin Plumbing of Frederick904.7★ (186)Frederick24/7
4Agape Drain & Plumbing LLC905.0★ (63)Frederick24/7
5Key City Plumbing & Contracting904.9★ (73)Frederick24/7
6Wenbrooke Services - Electrical, Plumbing, Heating and Air904.8★ (1,208)Frederick24/7
7Tri-County Pump Service, Inc.905.0★ (53)Frederick24/7
8Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical894.8★ (932)Frederick24/7
9Markool Heating Cooling Plumbing894.9★ (547)Frederick24/7
10Kline's Plumbing,LLC895.0★ (29)Frederick24/7

Call an emergency plumber in Frederick 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 Frederick, 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 221 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.

  24. #24 United Air Temp

    Based in Frederick

    86/100CR Score

    Ranked #24 because of its Google rating and availability: 4.7★ from 928 Google reviews, open 24/7.

    • 4.7★ from 928 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5305 Jefferson Pike Suite 5, Frederick, MD 21703
    View profile for United Air Temp(240) 680-9304

  25. #25 Warner Service

    Based in Frederick

    86/100CR Score

    Ranked #25 because of its Google rating and availability: 4.8★ from 537 Google reviews, open 24/7.

    • 4.8★ from 537 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    217 Monroe Ave, Frederick, MD 21701
    View profile for Warner Service(301) 200-9774

Top 50 of 221 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 Frederick, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Your 1 Plumber864.6★ (314)18 mi
27Apple Plumbing, Heating, & Air865.0★ (216)25 mi
28Larry & Sons Plumbing, Heating, Cooling, Drain & Electrical864.8★ (4,764)24 mi
29Crystal Water Plumbing864.4★ (44)7 mi
30Straw Hat Plumbers & Drain Services of Germantown865.0★ (87)19 mi
31Redline Mechanical Services854.9★ (16)8 mi
32PlumbingWurx LLC - Hagerstown Plumbing Services854.8★ (220)23 mi
33Michael Bonsby HVAC, Plumbing & Electrical854.8★ (2,083)21 mi
34Level Up Plumbing & Heating855.0★ (8)In Frederick
35Peak Plumbing and Heating, LLC855.0★ (3)In Frederick
36The Drain Guys854.7★ (168)21 mi
37Brick Street Plumbing & HVAC854.2★ (364)In Frederick
38Chase Plumbing & Well Services845.0★ (67)22 mi
39F.H. Furr Plumbing, Heating, Air Conditioning & Electrical844.8★ (2,314)25 mi
40BST Plumbing & Heating844.8★ (8)2 mi
41Roto-Rooter Plumbing & Water Cleanup845.0★ (66)22 mi
42Michael Runk Plumbing & Heating LLC844.8★ (163)25 mi
43Bob Jones Plumbing & Heating Inc844.7★ (140)22 mi
44Brick Street Plumbing, Water Heaters, AC & Furnace Repair844.6★ (203)22 mi
45Big Guy Plumbing845.0★ (71)24 mi
46Chesky Plumbing845.0★ (3)In Frederick
47Ferris Plumbing & Repair845.0★ (35)20 mi
48Cool Breeze Plumbing, Heating & A/C834.8★ (666)22 mi
49Plumbing Pro Services Germantown834.7★ (43)20 mi
50Another Plumber, Inc.835.0★ (29)22 mi

How we ranked emergency plumbers in Frederick

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 Frederick: questions

Which plumbers in Frederick are open 24/7?

25 on this list post 24/7 hours, including Outlook plumbing and Drain cleaning L.L.C, Zo Plumbing and Drain Cleaning LLC, Benjamin Franklin Plumbing of Frederick, Agape Drain & Plumbing LLC and Key City Plumbing & Contracting.

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

Outlook plumbing and Drain cleaning L.L.C is #1, with a CR Score of 91 out of 100 on emergency weights.

How are emergency plumbers in Frederick 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 Frederick

  1. October 2026: CR Scores recalculated for 221 plumbers serving Frederick.
  2. October 2026: 3 duplicate listings merged.

More emergency and plumbing pages