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Emergency Plumbers in Portsmouth, NH (2026)

Top 29 of 114 plumbers, in emergency orderUpdated 0 paid placements in this rankingHow we rank

24 of the 29 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 Portsmouth: Seacoast Sewer & Drain, Inc., 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 Portsmouth at a glance

Top emergency plumbers in Portsmouth at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Seacoast Sewer & Drain, Inc.914.9★ (156)Eliot, 4 mi away24/7
2Heritage Home Service884.9★ (2,248)Hampton, 7 mi away24/7
3All American Plumbing and Heating884.9★ (58)Eliot, 8 mi away24/7
4Backwater Plumbing LLC885.0★ (35)Eliot, 7 mi away24/7
5Sgt. Smith's Drain Cleaning Services884.8★ (196)Biddeford, 16 mi away24/7
6Maffei Services874.7★ (848)Haverhill, 25 mi away24/7
7A-List Drains Inc875.0★ (142)Andover, 22 mi away24/7
8SRV Plumbing and Heating865.0★ (58)Haverhill, 15 mi away24/7
9Top Dog Sewer & Drain864.9★ (58)Chester, 14 mi away24/7
10Rooter-Man864.5★ (33)Eliot, 7 mi away24/7

Call an emergency plumber in Portsmouth 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 29 emergency plumbers in Portsmouth, 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 114 is on the plumbers page.

  2. #2 Heritage Home Service

    Based in Hampton, 7 mi away

    88/100CR Score

    Ranked #2 because of its Google rating and review volume: 4.9★ from 2,248 Google reviews, 2,248 Google reviews.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 2,248 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    179 Lafayette Rd, North Hampton, NH 03862
    View profile for Heritage Home Service(603) 370-5097

  6. #6 Maffei Services

    Based in Haverhill, 25 mi away

    87/100CR Score

    Ranked #6 because of its Google rating and availability: 4.7★ from 848 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.7★ from 848 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    383 Main St, Rowley, MA 01969
    View profile for Maffei Services(978) 208-2055

  7. #7 A-List Drains Inc

    Based in Andover, 22 mi away

    87/100CR Score

    Ranked #7 because of its Google rating and availability: 5.0★ from 142 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 142 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for A-List Drains Inc(978) 209-1866

  10. #10 Rooter-Man

    Based in Eliot, 7 mi away

    86/100CR Score

    Ranked #10 because of its Google rating and availability: 4.5★ from 33 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.5★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    814 ME-236, Eliot, ME 03903
    View profile for Rooter-Man(207) 439-4617

  11. #11 Port City Plumbing

    Based in Portsmouth

    86/100CR Score

    Ranked #11 because of its Google rating and availability: 3.7★ from 31 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 3.7★ from 31 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1250 Woodbury Ave, Portsmouth, NH 03801
    View profile for Port City Plumbing(603) 431-7770

  12. #12 Value Rooter

    Based in South Berwick, 9 mi away

    85/100CR Score

    Ranked #12 because of its Google rating and availability: 4.8★ from 19 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    86 Oldfields Rd, South Berwick, ME 03908
    View profile for Value Rooter(207) 384-2879

  13. #13 Rooter-Man

    Based in Exeter, 13 mi away

    85/100CR Score

    Ranked #13 because of its Google rating and availability: 4.8★ from 23 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 23 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    12 Kingston Rd Suite D, Exeter, NH 03833
    View profile for Rooter-Man(603) 772-9796

  14. #14 The Drain Surgeon

    Based in Barnstable, 15 mi away

    85/100CR Score

    Ranked #14 because of its Google rating and availability: 5.0★ from 25 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 25 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for The Drain Surgeon(774) 212-7469

  16. #16 Heritage Home Service

    Based in Portsmouth

    83/100CR Score

    Ranked #16 because of its Google rating and availability: 4.9★ from 45 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Deer St ste 201, Portsmouth, NH 03801
    View profile for Heritage Home Service(603) 663-0531

  18. #18 M&K Plumbing & Heating

    Based in Sandown, 22 mi away

    80/100CR Score

    Ranked #18 because of its Google rating and availability: 4.3★ from 11 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.3★ from 11 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    204 Fremont Rd, Sandown, NH 03873
    View profile for M&K Plumbing & Heating(603) 235-8451

  19. #19 Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH

    Based in Sandown, 22 mi away

    80/100CR Score

    Ranked #19 because of its Google rating and availability: 5.0★ from 51 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 51 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    265 Fremont Rd, Sandown, NH 03873
    View profile for Pilot Plumbing, Heating and Cooling | Plumber, Tankless Water Heater Repair & Installation | Heating & AC Repair Sandown, NH(603) 634-8531

  20. #20 HomeWiz

    Based in Biddeford, 17 mi away

    79/100CR Score

    Ranked #20 because of its Google rating and availability: 4.6★ from 163 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.6★ from 163 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    694 Post Rd, Wells, ME 04090
    View profile for HomeWiz(207) 506-2232

  21. #21 Townsend Energy

    Based in Portsmouth

    79/100CR Score

    Ranked #21 because of its Google rating and availability: 3.7★ from 71 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 3.7★ from 71 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    225 Greenleaf Ave, Portsmouth, NH 03801
    View profile for Townsend Energy(603) 379-3655

  24. #24 Dry Air Systems Inc

    Based in Newburyport, 20 mi away

    77/100CR Score

    Ranked #24 because of its Google rating and availability: 4.7★ from 61 Google reviews, open 24/7.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.7★ from 61 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3 Stanley Tucker Dr, Newburyport, MA 01950
    View profile for Dry Air Systems Inc(978) 948-2151

Top 29 of 114 plumbers by emergency score

#1 to #25 are shown in full above. Here are #26 to #29, in CR Score order; each links to its profile.

plumbers in Portsmouth, ranks 26 to 29
RankBusinessCR ScoreGoogle ratingDistance
26Cochecho Plumbing & Heating774.7★ (14)10 mi
27Drain King Inc772.5★ (4)In Portsmouth
28Dufresne Plumbing & Heating774.2★ (5)4 mi
29Buchanan Waterworks Plumbing & Heating764.7★ (3)In Portsmouth

How we ranked emergency plumbers in Portsmouth

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 Portsmouth: questions

Which plumbers in Portsmouth are open 24/7?

24 on this list post 24/7 hours, including Seacoast Sewer & Drain, Inc., Heritage Home Service, All American Plumbing and Heating, Backwater Plumbing LLC and Sgt. Smith's Drain Cleaning Services.

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

Seacoast Sewer & Drain, Inc. is #1, with a CR Score of 91 out of 100 on emergency weights.

How are emergency plumbers in Portsmouth 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 Portsmouth

  1. October 2026: CR Scores recalculated for 114 plumbers serving Portsmouth.
  2. October 2026: 2 duplicate listings merged.

More emergency and plumbing pages