7 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Berlin: MT.Washington Sewer & Drain Cleaning, CR Score 89/100; 4.9★ from 126 Google reviews; open Saturdays until 12 PM.
Most-reviewed: Pratti Mechanical Inc, 82 Google reviews at 4.8★, the most of 7 ranked after MT.Washington Sewer & Drain Cleaning; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
7 Berlin plumbers are ranked here by CR Score, from 8 published factors. 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.8★ across 7 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | MT.Washington Sewer & Drain Cleaning | 89 | 4.9★ (126) | Berlin | Sat · Evenings | Overall |
| 2 | Pratti Mechanical Inc | 83 | 4.8★ (82) | Berlin | — | Most reviews |
| 3 | AAA Septic | 83 | 5.0★ (3) | Berlin | Sat · Sun | — |
| 4 | Darryl Bennett Plumbing & Heating | 82 | 4.3★ (6) | Berlin | — | — |
| 5 | Roy Normand Plumbing & Heating | 75 | 2.7★ (7) | Berlin | — | — |
| 6 | Haley Plumbing and Heating Service | 71 | 4.5★ (11) | Moultonborough, 15 mi away | — | — |
| 7 | CleanWave Plumbing & Heating | 70 | 5.0★ (3) | Eliot, 16 mi away | Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.9★ from 126 Google reviews, the most Google reviews on this list (126).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Berlin
Ranked #2 because of its Google rating and trade focus: 4.8★ from 82 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Berlin
Ranked #3 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Septic system service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Berlin
Ranked #4 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Plumber”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Berlin
Ranked #5 because of its Google rating and trade focus: 2.7★ from 7 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Moultonborough, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Eliot, 16 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Plumber”.
Based on 6 of 8 factors; credentials and recency not yet collected.
National price ranges in USD, not adjusted for Berlin. 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 7 Berlin 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 Berlin 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 |