25 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Hanover: Jerm's Plumbing, Heating & Air, CR Score 60/100; 5.0★ from 1,286 Google reviews.
Best for emergencies (open 24/7): Pipe Dreams Sewer & Drain, posts 24/7 hours; ranked #2 of 25.
Most-reviewed: Steve-O’s Plumbing, 116 Google reviews at 5.0★, the most of 25 ranked after Jerm's Plumbing, Heating & Air; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
25 Hanover plumbers are ranked here by CR Score, from ten published factors. 5 are open 24/7, 8 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.8★ across 25 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Jerm's Plumbing, Heating & Air | 60 | 5.0★ (1,286) | Hanover | — | Overall |
| 2 | Pipe Dreams Sewer & Drain | 60 | 5.0★ (61) | Colchester, 14 mi away | 24/7 | Emergencies |
| 3 | Triumph Home Services | 58 | 4.9★ (112) | Hanover | 24/7 | — |
| 4 | Forward's Plumbing, LLC | 57 | 5.0★ (92) | Lebanon, 6 mi away | — | — |
| 5 | Cardigan Mechanical | 57 | 5.0★ (66) | Hanover | 24/7 | — |
| 6 | Roto-Rooter | 57 | 3.0★ (8) | Lebanon, 5 mi away | 24/7 | — |
| 7 | Martin's Mechanical Plumbing & Heating | 56 | 4.1★ (12) | Hanover | — | — |
| 8 | T.Dean Plumbing & Heating | 56 | 4.9★ (74) | Claremont, 17 mi away | Sat | — |
| 9 | M E Pierce Plumbing & Heating | 55 | 4.3★ (17) | Lebanon, 6 mi away | — | — |
| 10 | Dickinson & Son Inc | 55 | 4.2★ (36) | Hanover | — | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 5.0★ from 1,286 Google reviews, the most in Hanover.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 14 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #3 because of its Google rating and review volume: 4.9★ from 112 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 6 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 92 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #5 because of its Google rating and review volume: 5.0★ from 66 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 5 mi away
Ranked #6 because of its Google rating and trade focus: 3.0★ from 8 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #7 because of its Google rating and trade focus: 4.1★ from 12 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Claremont, 17 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 74 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 6 mi away
Ranked #9 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hanover
Ranked #10 because of its Google rating and trade focus: 4.2★ from 36 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #11 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 15 mi away
Ranked #12 because of its Google rating and trade focus: 4.4★ from 16 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #13 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #14 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Rockingham, 17 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 116 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Colchester, 14 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Claremont, 24 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Claremont, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Claremont, 23 mi away
Ranked #19 because of its Google rating and trade focus: 2.6★ from 5 Google reviews, listed on Google as “Plumber”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Hanover
Ranked #20 because of its Google rating and review volume: 4.0★ from 53 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Claremont, 23 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Hanover
Ranked #22 because of its Google rating and trade focus: 3.6★ from 11 Google reviews, listed on Google as “Mechanical contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Claremont, 22 mi away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 22 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lebanon, 11 mi away
Ranked #24 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Excavating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Claremont, 23 mi away
Ranked #25 because of its Google rating and trade focus: 3.3★ from 3 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
National price ranges in USD, not adjusted for Hanover. 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 |
In New Hampshire, New Hampshire Office of Professional Licensure and Certification licenses Plumber licenses (Mechanical Licensing Board).
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
We scored 25 Hanover plumbers on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Hanover data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |