88/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 156 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 156 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Plumbers in Newmarket, NH (2026)
162 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Newmarket: Seacoast Sewer & Drain, Inc., CR Score 88/100; 4.9★ from 156 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): All American Plumbing and Heating, posts 24/7 hours; ranked #2 of 162.
- 18
Most-reviewed: Heritage Home Service, 7,956 Google reviews at 4.8★, the most of 162 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
162 Newmarket plumbers are ranked here by CR Score, from 8 published factors. 41 are open 24/7, 65 open Saturdays and 52 open Sundays, based on posted hours. The median Google rating is 4.8★ across 162 rated businesses.
Top 10 plumbers in Newmarket at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Seacoast Sewer & Drain, Inc. | 88 | 4.9★ (156) | Eliot, 9 mi away | 24/7 | Overall |
| 2 | All American Plumbing and Heating | 87 | 4.9★ (58) | Eliot, 5 mi away | 24/7 | Emergencies |
| 3 | SRV Plumbing and Heating | 87 | 5.0★ (58) | Haverhill, 7 mi away | 24/7 | — |
| 4 | Top Dog Sewer & Drain | 87 | 4.9★ (58) | Chester, 7 mi away | 24/7 | — |
| 5 | Sgt. Smith's Drain Cleaning Services | 87 | 4.8★ (196) | Biddeford, 12 mi away | 24/7 | — |
| 6 | A-List Drains Inc | 87 | 5.0★ (142) | Andover, 17 mi away | 24/7 | — |
| 7 | The Drain Surgeon | 86 | 5.0★ (25) | Barnstable, 7 mi away | 24/7 | — |
| 8 | Heritage Home Service | 86 | 4.9★ (2,248) | Hampton, 9 mi away | 24/7 | — |
| 9 | Advanced Plumbing LLC | 85 | 5.0★ (129) | Auburn, 21 mi away | 24/7 | — |
| 10 | St Pierre Plumbing & Drain Cleaning | 85 | 4.9★ (77) | Chester, 15 mi away | 24/7 | — |
The 162 best plumbers in Newmarket, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Eliot, 5 mi away
87/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 58 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 58 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Haverhill, 7 mi away
87/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 58 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 58 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Chester, 7 mi away
87/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 58 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 58 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Biddeford, 12 mi away
87/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 196 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 196 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Andover, 17 mi away
87/100CR ScoreRanked #6 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
Based in Barnstable, 7 mi away
86/100CR ScoreRanked #7 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
Based in Hampton, 9 mi away
86/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 2,248 Google reviews, open 24/7.
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
Based in Auburn, 21 mi away
85/100CR ScoreRanked #9 because of its Google rating and availability: 5.0★ from 129 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 129 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Chester, 15 mi away
85/100CR ScoreRanked #10 because of its Google rating and availability: 4.9★ from 77 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 77 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Eliot, 12 mi away
85/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 35 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#12 Rooter-Man
Based in Exeter, 8 mi away
85/100CR ScoreRanked #12 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
#13 Maffei Services
Based in Haverhill, 25 mi away
85/100CR ScoreRanked #13 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
#14 Rooter-Man
Based in Eliot, 9 mi away
84/100CR ScoreRanked #14 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
#15 Value Rooter
Based in South Berwick, 11 mi away
84/100CR ScoreRanked #15 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
Based in Newmarket
84/100CR ScoreRanked #16 because of its Google rating and availability: 4.5★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6 Riverbend Rd, Newmarket, NH 03857
Based in Auburn, 18 mi away
84/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 36 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 36 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Auburn, 23 mi away
83/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 7,956 Google reviews, the most Google reviews on this list (7,956).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 7,956 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 28 Commercial Ct, Auburn, NH 03032
#19 Jeff's Drains
Based in Haverhill, 24 mi away
83/100CR ScoreRanked #19 because of its Google rating and availability: 4.8★ from 102 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 102 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 183 Orchard Hill Rd, Haverhill, MA 01835
Based in Newmarket
83/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 11 Google reviews
- Address
- 44 New Rd, Newmarket, NH 03857
Based in Portsmouth, 8 mi away
81/100CR ScoreRanked #21 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
Based in Sandown, 14 mi away
81/100CR ScoreRanked #22 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
Based in Sandown, 15 mi away
81/100CR ScoreRanked #23 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
Based in Chester, 7 mi away
81/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
Based in Hopkinton, 17 mi away
81/100CR ScoreRanked #25 because of its Google rating and availability: 4.6★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
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 162 ranked plumbers here; the rest are on their profiles.
Also serving Newmarket
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.
| Business | Google rating | Distance |
|---|---|---|
| Bruce P Hermenau Plumbing | 4.0★ (2) | 11 mi |
| Dacare the Plumber | 5.0★ (2) | 24 mi |
| Dan Rich Plumbing & Heating Co | 2.5★ (2) | 17 mi |
| David Glover Plumbing & Heating | 3.0★ (2) | 12 mi |
| Fairbanks Property Services LLC | 5.0★ (2) | 23 mi |
| Farrell Contracting Services, LLC | 5.0★ (2) | 6 mi |
| Jim Tobey Plumbing & Heating | 3.0★ (2) | 9 mi |
| Just Great Plumbing and Heating LLC | 5.0★ (2) | 12 mi |
| Krafton plumbing and heating | 5.0★ (2) | 13 mi |
| Mad Moose Mechanical | 5.0★ (14) | 24 mi |
| Mc Nally & Sons Plumbing & Heating | 5.0★ (2) | 11 mi |
| Merrimack Valley Plumbing | 3.0★ (2) | 25 mi |
| NH Groundscapes, LLC (NHG) | 4.9★ (56) | 24 mi |
| Palmer and Sicard, Inc. | 3.9★ (20) | 7 mi |
| Precision Plumbing | 5.0★ (2) | 23 mi |
| QUIRK Real Estate Sales, Development and Construction | 3.0★ (2) | 17 mi |
| TAPS Decorative Plumbing | 5.0★ (2) | 9 mi |
| Townsend Energy | 3.7★ (71) | 8 mi |
| Traditional Oil Heating Services | 5.0★ (33) | 20 mi |
| Water Expressions | 5.0★ (2) | 7 mi |
How much do plumbers cost in Newmarket?
National price ranges in USD, not adjusted for Newmarket. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Water heater replacement | $882 | $1,348 | $1,826 | Per unit, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 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).
- Check that the status is active and the name matches the contract or truck.
- 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 Newmarket plumbers
We scored 162 Newmarket 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.
| Factor | Weight | Computed from | In Newmarket data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Plumbers in Newmarket: frequently asked questions
Who is the best plumber in Newmarket?
By CR Score, the highest-ranked plumber in Newmarket, NH is Seacoast Sewer & Drain, Inc. with a CR Score of 88/100. It has 4.9★ from 156 Google reviews. It is open 24/7. All American Plumbing and Heating (#2) and SRV Plumbing and Heating (#3) follow. We ranked 162 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Newmarket?
ContractorsRanked ranks 162 plumbers serving Newmarket, NH. 3 of them are based in Newmarket; 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 Newmarket are open 24/7?
41 ranked plumbers in Newmarket post 24/7 hours. The highest-ranked are Seacoast Sewer & Drain, Inc. (#1), All American Plumbing and Heating (#2) and SRV Plumbing and Heating (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Newmarket work on weekends?
65 of 162 ranked plumbers post Saturday hours and 52 post Sunday hours. The highest-ranked open Saturdays are Seacoast Sewer & Drain, Inc. (#1), All American Plumbing and Heating (#2) and SRV Plumbing and Heating (#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 Newmarket?
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 Newmarket. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Newmarket plumbers have?
The median Google rating among 162 rated plumbers in Newmarket is 4.8★, with a median of 14 reviews. Heritage Home Service has the most, 7,956 reviews, and ranks #18. 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 Newmarket
- October 2026: CR Scores recalculated for 162 plumbers serving Newmarket.
- October 2026: 2 duplicate listings merged.
More plumbers and Newmarket pages
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