57/100CR Score
Ranked #1 because of its Google rating and review volume: 4.4★ from 14 Google reviews.
- 4.4★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Plumbers in Houlton, ME (2026)
5 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Houlton: Off Grid Mechanical, CR Score 57/100; 4.4★ from 14 Google reviews; open 24/7.
- 2
Most-reviewed: Harbison Plumbing, Heating and Air Conditioning, 16 Google reviews at 3.6★, the most of 5 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Houlton plumbers are ranked here by CR Score, from ten published factors. 1 is open 24/7, 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.4★ across 5 rated businesses.
Top 5 plumbers in Houlton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Off Grid Mechanical | 57 | 4.4★ (14) | Houlton | 24/7 | Overall |
| 2 | Harbison Plumbing, Heating and Air Conditioning | 54 | 3.6★ (16) | Houlton | — | Most reviews |
| 3 | J.H. McPartland & Sons | 52 | 4.3★ (15) | Houlton | — | — |
| 4 | Nickerson Construction | 51 | 4.5★ (11) | Houlton | — | — |
| 5 | Dunbar Excavation & Construction Services | 48 | 5.0★ (3) | Houlton | Sat · Evenings | — |
The 5 best plumbers in Houlton, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Houlton
54/100CR ScoreRanked #2 because of its Google rating and review volume: 3.6★ from 16 Google reviews, the most in Houlton.
- 3.6★ from 16 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 98 Bangor St, Houlton, ME 04730
Based in Houlton
52/100CR ScoreRanked #3 because of its Google rating and review volume: 4.3★ from 15 Google reviews.
- 4.3★ from 15 Google reviews
- Hours
- Mon–Fri 7 AM–4:30 PM · Sat–Sun closed
- Address
- 3 Mechanic St, Houlton, ME 04730
Based in Houlton
51/100CR ScoreRanked #4 because of its Google rating and review volume: 4.5★ from 11 Google reviews.
- 4.5★ from 11 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 1391 County Rd, New Limerick, ME 04761
Based in Houlton
48/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Excavating contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 42 Carmichael Rd, Littleton, ME 04730
How much do plumbers cost in Houlton?
National price ranges in USD, not adjusted for Houlton. 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 Maine
In Maine, Maine Office of Professional and Occupational Regulation licenses Plumber licenses (Plumbers’ Examining 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 Houlton plumbers
We scored 5 Houlton 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 Houlton 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 |
Plumbers in Houlton: frequently asked questions
Who is the best plumber in Houlton?
By CR Score, the highest-ranked plumber in Houlton, ME is Off Grid Mechanical with a CR Score of 57/100. It has 4.4★ from 14 Google reviews. It is open 24/7. Harbison Plumbing, Heating and Air Conditioning (#2) and J.H. McPartland & Sons (#3) follow. We ranked 5 plumbers on ten factors, last updated October 22, 2026.
How many plumbers are there in Houlton?
ContractorsRanked ranks 5 plumbers serving Houlton, ME. 5 of them are based in Houlton; the rest serve it from nearby towns. Counts are as of October 2026.
Which plumbers in Houlton are open 24/7?
1 ranked plumber in Houlton posts 24/7 hours. The highest-ranked is Off Grid Mechanical (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Houlton work on weekends?
2 of 5 ranked plumbers post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Off Grid Mechanical (#1) and Dunbar Excavation & Construction Services (#5). Posted hours are office hours; crews may book weekend jobs separately.
How do I check a plumber's license in Maine?
In Maine, Maine Office of Professional and Occupational Regulation handles licensing and covers Plumber licenses (Plumbers’ Examining Board).
How much does water heater replacement cost in Houlton?
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 Houlton. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Houlton plumbers have?
The median Google rating among 5 rated plumbers in Houlton is 4.4★, with a median of 14 reviews. Harbison Plumbing, Heating and Air Conditioning has the most, 16 reviews, and ranks #2. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Houlton
- October 2026: CR Scores recalculated for 5 plumbers serving Houlton.
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