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Emergency Plumbers in Londonderry, NH (2026)

Top 50 of 398 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 Londonderry: Roto-Rooter Plumbing & Water Cleanup, 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 Londonderry at a glance

Top emergency plumbers in Londonderry at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Roto-Rooter Plumbing & Water Cleanup624.7★ (411)Manchester, 7 mi away24/7
2Flow Pro Plumbing and Drain Cleaning625.0★ (118)Derry, 5 mi away24/7
3Priority Plumbing624.9★ (149)Bedford, 5 mi away24/7
4Roto-Rooter Plumbing & Water Cleanup614.8★ (1,146)Lowell, 16 mi away24/7
5Eric C. Foster Plumbing Heating & Cooling Inc.614.9★ (619)Chelmsford, 17 mi away24/7
6High Ground Service Pros - Plumbers Electricians & HVAC Technicians604.9★ (2,303)Manchester, 10 mi away24/7
7Southern New Hampshire Plumbing and Heating604.8★ (433)Londonderry24/7
8Heritage Home Service604.8★ (7,956)Auburn, 7 mi away24/7
9Mr. Rooter Plumbing of Greater New Hampshire604.8★ (897)Concord, 20 mi away24/7
10Felix, A Wind River Company604.9★ (609)Concord, 20 mi away24/7

Call an emergency plumber in Londonderry 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 Londonderry, 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 398 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.

  11. #11 All Drain Services

    Based in Hudson, 4 mi away

    60/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.4★ from 71 Google reviews, listed on Google as “Drainage service”.

    • 4.4★ from 71 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    140 Old Derry Rd, Hudson, NH 03051
    View profile for All Drain Services(866) 284-6400

  12. #12 Plumr

    Based in North Andover, 16 mi away

    60/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “Plumber”.

    • 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

  18. #18 Rooter Man

    Based in Lawrence, 16 mi away

    59/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 118 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 118 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    46 Portland St, Lawrence, MA 01843
    View profile for Rooter Man(978) 686-2214

  19. #19 Viper Drain Cleaning LLC

    Based in Londonderry

    59/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.1★ from 13 Google reviews, listed on Google as “Plumber”.

    • 4.1★ from 13 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5 Oconnell Dr, Londonderry, NH 03053
    View profile for Viper Drain Cleaning LLC

Top 50 of 398 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 Londonderry, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Skill Pro Services - Plumbing & Gas-Fitting585.0★ (222)22 mi
27Thin Blue Line Plumbing and Heating, L.L.C.585.0★ (36)11 mi
28Doug Anderson Plumbing and Heating584.9★ (222)21 mi
29A. Fagundes Plumbing & Heating Inc.584.9★ (348)9 mi
30Queen City Plumbing & Heating584.4★ (39)9 mi
31ER Plumbing and Heating585.0★ (10)5 mi
32Advanced Plumbing LLC585.0★ (129)20 mi
33Ari's Pro Drain Cleaning584.9★ (108)19 mi
34Jeff's Drains584.8★ (102)17 mi
35Armory Plumbing Inc.584.8★ (79)17 mi
36Twins Plumbing and Heating Inc.584.6★ (20)8 mi
37Ferris Plumbing, Heating & Air574.9★ (320)12 mi
38Competitive Plumbing & Heating575.0★ (52)18 mi
39Drains By James Inc.574.8★ (207)23 mi
40Household Environmental575.0★ (257)3 mi
41Capeless Plumbing & Heating575.0★ (31)16 mi
42My Plumber575.0★ (36)16 mi
43Walley's Heating & Air574.9★ (793)9 mi
44128 Plumbing, Heating, Cooling & Electric575.0★ (562)18 mi
45Dacare the Plumber574.9★ (73)20 mi
46SRV Plumbing and Heating575.0★ (58)20 mi
47Hometown Plumbing575.0★ (25)16 mi
48Drew Gouveia Plumbing565.0★ (30)17 mi
49Top Dog Sewer & Drain564.9★ (58)21 mi
50128 Plumbing, Heating, Cooling & Electric565.0★ (443)19 mi

How we ranked emergency plumbers in Londonderry

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 Londonderry: questions

Which plumbers in Londonderry are open 24/7?

25 on this list post 24/7 hours, including Roto-Rooter Plumbing & Water Cleanup, Flow Pro Plumbing and Drain Cleaning, Priority Plumbing, Roto-Rooter Plumbing & Water Cleanup and Eric C. Foster Plumbing Heating & Cooling Inc..

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

Roto-Rooter Plumbing & Water Cleanup is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency plumbers in Londonderry 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?

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

Update log for Londonderry

  1. October 2026: CR Scores recalculated for 398 plumbers serving Londonderry.
  2. October 2026: 4 duplicate listings merged.

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