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ContractorsRanked

Emergency Plumbers in Merrimack, NH (2026)

Top 50 of 350 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 Merrimack: Priority Plumbing, 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 Merrimack at a glance

Top emergency plumbers in Merrimack at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Priority Plumbing904.9★ (149)Bedford, 2 mi away24/7
2Flow Pro Plumbing and Drain Cleaning895.0★ (118)Derry, 6 mi away24/7
3Roto-Rooter Plumbing & Water Cleanup894.7★ (411)Manchester, 7 mi away24/7
4High Ground Service Pros - Plumbers Electricians & HVAC Technicians894.9★ (2,303)Manchester, 9 mi away24/7
5Roto-Rooter Plumbing & Water Cleanup884.8★ (1,146)Lowell, 18 mi away24/7
6Eric C. Foster Plumbing Heating & Cooling Inc.884.9★ (619)Chelmsford, 18 mi away24/7
7Felix, A Wind River Company884.9★ (609)Concord, 19 mi away24/7
8Mr. Rooter Plumbing of Greater New Hampshire884.8★ (897)Concord, 19 mi away24/7
9Heritage Home Service874.8★ (7,956)Auburn, 10 mi away24/7
10A.J. LeBlanc Heating, A/C, Plumbing & Electrical874.8★ (683)Bedford, 7 mi away24/7

Call an emergency plumber in Merrimack 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 Merrimack, 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 350 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.

  17. #17 Plumr

    Based in North Andover, 21 mi away

    86/100CR Score

    Ranked #17 because of its Google rating and availability: 4.9★ from 286 Google reviews, open 24/7.

    • 4.9★ from 286 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8 Marblehead St B, North Andover, MA 01845
    View profile for Plumr(781) 606-5200

Top 50 of 350 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 Merrimack, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Doug Anderson Plumbing and Heating854.9★ (222)22 mi
27Advanced Plumbing LLC855.0★ (129)22 mi
28Rooter Man855.0★ (118)21 mi
29St Pierre Plumbing & Drain Cleaning854.9★ (77)17 mi
30Sanford Temperature Control854.9★ (1,832)11 mi
31Competitive Plumbing & Heating855.0★ (52)17 mi
32Thin Blue Line Plumbing and Heating, L.L.C.855.0★ (36)15 mi
33Queen City Plumbing & Heating854.4★ (39)9 mi
34Twins Plumbing and Heating Inc.854.6★ (20)9 mi
35Walley's Heating & Air854.9★ (793)8 mi
36Armory Plumbing Inc.844.8★ (79)18 mi
37Hometown Plumbing845.0★ (25)14 mi
38ER Plumbing and Heating845.0★ (10)4 mi
39Viper Drain Cleaning LLC844.1★ (13)6 mi
40Derry Plumbing & Heating844.8★ (176)9 mi
41W.W.W. Sarette Bros Inc.844.8★ (10)10 mi
42LHR Plumbing, Heating & AC Repair844.9★ (128)10 mi
43Gideon Plumbing Services845.0★ (29)18 mi
44Jeff's Drains844.8★ (102)23 mi
45Midtowne Plumbing & Heating844.8★ (47)19 mi
46128 Plumbing, Heating, Cooling & Electric835.0★ (443)21 mi
47Drew Gouveia Plumbing835.0★ (30)19 mi
48128 Plumbing, Heating, Cooling & Electric835.0★ (562)23 mi
49Capeless Plumbing & Heating835.0★ (31)20 mi
50Denommee Plumbing, HVAC & Electric834.7★ (427)15 mi

How we ranked emergency plumbers in Merrimack

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 Merrimack: questions

Which plumbers in Merrimack are open 24/7?

25 on this list post 24/7 hours, including Priority Plumbing, Flow Pro Plumbing and Drain Cleaning, Roto-Rooter Plumbing & Water Cleanup, High Ground Service Pros - Plumbers Electricians & HVAC Technicians and Roto-Rooter Plumbing & Water Cleanup.

Who is ranked #1 for emergency plumbing in Merrimack, NH?

Priority Plumbing is #1, with a CR Score of 90 out of 100 on emergency weights.

How are emergency plumbers in Merrimack 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 Merrimack

  1. October 2026: CR Scores recalculated for 350 plumbers serving Merrimack.
  2. October 2026: 2 duplicate listings merged.

More emergency and plumbing pages