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ContractorsRanked

Best Plumbers in Derry, NH (2026)

411 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Derry: Flow Pro Plumbing and Drain Cleaning, CR Score 91/100; 5.0★ from 118 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Priority Plumbing, posts 24/7 hours; ranked #2 of 411.

  3. 10

    Most-reviewed: Heritage Home Service, 7,956 Google reviews at 4.8★, the most of 411 ranked; ranked #10.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

411 Derry plumbers are ranked here by CR Score, from 8 published factors. 129 are open 24/7, 209 open Saturdays and 161 open Sundays, based on posted hours. The median Google rating is 4.9★ across 411 rated businesses.

Top 10 plumbers in Derry at a glance

Top 10 plumbers in Derry at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Flow Pro Plumbing and Drain Cleaning915.0★ (118)Derry24/7Overall
2Priority Plumbing884.9★ (149)Bedford, 7 mi away24/7Emergencies
3Overflow Plumbing Co.885.0★ (33)Derry24/7—
4Roto-Rooter Plumbing & Water Cleanup884.7★ (411)Manchester, 8 mi away24/7—
5Roto-Rooter Plumbing & Water Cleanup884.8★ (1,146)Lowell, 16 mi away24/7—
6Eric C. Foster Plumbing Heating & Cooling Inc.884.9★ (619)Chelmsford, 18 mi away24/7—
7High Ground Service Pros - Plumbers Electricians & HVAC Technicians884.9★ (2,303)Manchester, 11 mi away24/7—
8A-List Drains Inc875.0★ (142)Andover, 13 mi away24/7—
9Felix, A Wind River Company874.9★ (609)Concord, 19 mi away24/7—
10Heritage Home Service874.8★ (7,956)Auburn, 6 mi away24/7Most reviews

The 411 best plumbers in Derry, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  10. #10 Heritage Home Service

    Based in Auburn, 6 mi away

    87/100CR Score

    Ranked #10 because of its Google rating and review volume: 4.8★ from 7,956 Google reviews, the most Google reviews on this list (7,956).

    • 4.8★ from 7,956 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Commercial Ct, Auburn, NH 03032
    View profile for Heritage Home Service(603) 627-2730

  11. #11 Plumr

    Based in North Andover, 16 mi away

    87/100CR Score

    Ranked #11 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

  15. #15 Rooter Man

    Based in Lawrence, 15 mi away

    87/100CR Score

    Ranked #15 because of its Google rating and availability: 5.0★ from 118 Google reviews, open 24/7.

    • 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

  24. #24 Mainline Plumbing

    Based in Londonderry, 4 mi away

    85/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 565 Google reviews, listed on Google as “Plumber”.

    • 5.0★ from 565 Google reviews
    Hours
    Mon–Fri 6 AM–6:30 PM · Sat 6 AM–2 PM · Sun closed
    Address
    71 Mammoth Rd, Londonderry, NH 03053
    View profile for Mainline Plumbing(603) 472-5261

Plumbers ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 411 ranked plumbers here; the rest are on their profiles.

plumbers in Derry, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Household Environmental855.0★ (257)In Derry
27MillTown Plumbing, Heating, Cooling and Electrical854.8★ (2,927)18 mi
28A. Fagundes Plumbing & Heating Inc.854.8★ (1,626)15 mi
29All Drain Services854.4★ (71)6 mi
30Jeff's Drains854.8★ (102)16 mi
31SRV Plumbing and Heating855.0★ (58)17 mi
32A. Fagundes Plumbing & Heating Inc.854.9★ (348)11 mi
33128 Plumbing, Heating, Cooling & Electric855.0★ (562)17 mi
34Competitive Plumbing & Heating855.0★ (52)17 mi
35My Plumber855.0★ (36)15 mi
36Bill Trombly Plumbing - Heating - Cooling - Electric844.7★ (598)9 mi
37Capeless Plumbing & Heating845.0★ (31)15 mi
38Twins Plumbing and Heating Inc.844.6★ (20)8 mi
39Viper Drain Cleaning LLC844.1★ (13)3 mi
40Ari's Pro Drain Cleaning844.9★ (108)22 mi
41Armory Plumbing Inc.844.8★ (79)18 mi
42Dacare the Plumber844.9★ (73)19 mi
43Top Dog Sewer & Drain844.9★ (58)18 mi
44Drains By James Inc.844.8★ (207)23 mi
45Queen City Plumbing & Heating844.4★ (39)8 mi
46Fritz Family Plumbing & Heating845.0★ (52)7 mi
47128 Plumbing, Heating, Cooling & Electric845.0★ (443)20 mi
48Ferris Plumbing, Heating & Air844.9★ (320)14 mi
49Drew Gouveia Plumbing835.0★ (30)18 mi
50Walley's Heating & Air834.9★ (793)11 mi

Also serving Derry

20 more plumbers within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked plumbers serving Derry
BusinessGoogle ratingDistance
Al's Septic & Excavation3.0★ (2)In Derry
All Clear Plumbing Solutions, LLC4.6★ (9)9 mi
Allied plumbing and heating5.0★ (2)15 mi
American Tank Management Inc1.0★ (2)10 mi
B A Carson Plumbing & Heating IncIn Derry
Dacare the Plumber5.0★ (2)6 mi
Dave Pollock Plumbing3.0★ (2)10 mi
Dracut Plumbing & Heating3.0★ (2)14 mi
Eastern Temperature Control HVAC, LLC5.0★ (2)7 mi
ER Plumbing and Heating5.0★ (10)6 mi
Fairbanks Property Services LLC5.0★ (2)15 mi
Harley Weymouth Plumbing & Heating5.0★ (2)12 mi
JAIS PLUMBING AND HEATING5.0★ (1)In Derry
Krafton plumbing and heating5.0★ (2)11 mi
Merrimack Valley Plumbing3.0★ (2)16 mi
Mikey Pipes Plumbing & Heating LLC5.0★ (2)11 mi
Precision Heating & Gas Services5.0★ (60)In Derry
Precision Plumbing5.0★ (2)In Derry
QUIRK Real Estate Sales, Development and Construction3.0★ (2)9 mi
Sewer Works5.0★ (2)11 mi

How much do plumbers cost in Derry?

National price ranges in USD, not adjusted for Derry. Each row names its basis and the month we checked it.

How much do plumbers cost in Derry?
JobLowTypicalHighBasisChecked
Water heater replacement$882$1,348$1,826Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026

How to check a plumber's license in New Hampshire

In New Hampshire, New Hampshire Office of Professional Licensure and Certification licenses Plumber licenses (Mechanical Licensing Board).

  1. Check that the status is active and the name matches the contract or truck.
  2. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked Derry plumbers

We scored 411 Derry plumbers on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

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 fromIn Derry data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Plumbers in Derry: frequently asked questions

Who is the best plumber in Derry?

By CR Score, the highest-ranked plumber in Derry, NH is Flow Pro Plumbing and Drain Cleaning with a CR Score of 91/100. It has 5.0★ from 118 Google reviews. It is open 24/7. Priority Plumbing (#2) and Overflow Plumbing Co. (#3) follow. We ranked 411 plumbers on 8 factors, last updated October 22, 2026.

How many plumbers are there in Derry?

ContractorsRanked ranks 411 plumbers serving Derry, NH. 4 of them are based in Derry; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which plumbers in Derry are open 24/7?

129 ranked plumbers in Derry post 24/7 hours. The highest-ranked are Flow Pro Plumbing and Drain Cleaning (#1), Priority Plumbing (#2) and Overflow Plumbing Co. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which plumbers in Derry work on weekends?

209 of 411 ranked plumbers post Saturday hours and 161 post Sunday hours. The highest-ranked open Saturdays are Flow Pro Plumbing and Drain Cleaning (#1), Priority Plumbing (#2) and Overflow Plumbing Co. (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a plumber's license in New Hampshire?

In New Hampshire, New Hampshire Office of Professional Licensure and Certification handles licensing and covers Plumber licenses (Mechanical Licensing Board).

How much does water heater replacement cost in Derry?

Water heater replacement typically costs $882 to $1,826, with $1,348 typical (Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Derry. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Derry plumbers have?

The median Google rating among 411 rated plumbers in Derry is 4.9★, with a median of 20 reviews. Heritage Home Service has the most, 7,956 reviews, and ranks #10. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank plumbers?

Each plumber gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Derry

  1. October 2026: CR Scores recalculated for 411 plumbers serving Derry.
  2. October 2026: 4 duplicate listings merged.

More plumbers and Derry pages

Other trades in Derry