92/100CR Score
Ranked #1 because of its Google rating and availability: 4.9★ from 412 Google reviews, open 24/7.
- 4.9★ from 412 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11409 Pennywood Ave, Baton Rouge, LA 70809
Best Plumbers in Old Jefferson, LA (2026)
143 plumbers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Old Jefferson: Trinity Plumbing, CR Score 92/100; 4.9★ from 412 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Southern Air Heating, Cooling, & Plumbing, posts 24/7 hours; ranked #2 of 143.
- 2
Most-reviewed: Southern Air Heating, Cooling, & Plumbing, 2,986 Google reviews at 4.9★, the most of 143 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
143 Old Jefferson plumbers are ranked here by CR Score, from 8 published factors. 32 are open 24/7, 56 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.8★ across 143 rated businesses.
Most of this list also appears on the Plumbers in Baker ranking. See Plumbers in Baker
Top 10 plumbers in Old Jefferson at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Trinity Plumbing | 92 | 4.9★ (412) | Baton Rouge, 2 mi away | 24/7 | Overall |
| 2 | Southern Air Heating, Cooling, & Plumbing | 92 | 4.9★ (2,986) | Baton Rouge, 2 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Brotherhood Plumbing | 91 | 5.0★ (333) | Baton Rouge, 8 mi away | 24/7 | — |
| 4 | Rooterman | 91 | 4.8★ (295) | Baton Rouge, 1 mi away | 24/7 | — |
| 5 | Home360 Inc. | 91 | 4.8★ (282) | Baton Rouge, 2 mi away | 24/7 | — |
| 6 | Reliable Plumbing | 90 | 4.8★ (337) | Baton Rouge, 6 mi away | 24/7 | — |
| 7 | Veteran’s Plumbing Repairs | 90 | 4.9★ (133) | Baton Rouge, 3 mi away | 24/7 | — |
| 8 | Plumb Crazy LLC | 90 | 5.0★ (205) | Baker, 10 mi away | 24/7 | — |
| 9 | Mr. Rooter Plumbing of Baton Rouge | 89 | 4.7★ (226) | Baton Rouge, 4 mi away | 24/7 | — |
| 10 | Expert Plumbing and Drain Services | 89 | 5.0★ (53) | Baton Rouge, 2 mi away | 24/7 | — |
The 143 best plumbers in Old Jefferson, 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.
Based in Baton Rouge, 2 mi away
92/100CR ScoreRanked #2 because of its Google rating and review volume: 4.9★ from 2,986 Google reviews, the most Google reviews on this list (2,986).
- 4.9★ from 2,986 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11999 Industriplex Blvd, Baton Rouge, LA 70809
Based in Baton Rouge, 8 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 333 Google reviews, open 24/7.
- 5.0★ from 333 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3185 Balis Dr APT 117, Baton Rouge, LA 70808
#4 Rooterman
Based in Baton Rouge, 1 mi away
91/100CR ScoreRanked #4 because of its Google rating and availability: 4.8★ from 295 Google reviews, open 24/7.
- 4.8★ from 295 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5917 Jones Creek Rd, Baton Rouge, LA 70817
#5 Home360 Inc.
Based in Baton Rouge, 2 mi away
91/100CR ScoreRanked #5 because of its Google rating and availability: 4.8★ from 282 Google reviews, open 24/7.
- 4.8★ from 282 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11211 Industriplex Blvd Ste 200, Baton Rouge, LA 70809
Based in Baton Rouge, 6 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 4.8★ from 337 Google reviews, open 24/7.
- 4.8★ from 337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 15016 Florida Blvd, Baton Rouge, LA 70819
Based in Baton Rouge, 3 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 133 Google reviews, open 24/7.
- 4.9★ from 133 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9026 Gail Dr, Baton Rouge, LA 70809
Based in Baker, 10 mi away
90/100CR ScoreRanked #8 because of its Google rating and availability: 5.0★ from 205 Google reviews, open 24/7.
- 5.0★ from 205 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Baton Rouge, 4 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 4.7★ from 226 Google reviews, open 24/7.
- 4.7★ from 226 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Baton Rouge, 2 mi away
89/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 53 Google reviews, open 24/7.
- 5.0★ from 53 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11821 Dunlay Ave, Baton Rouge, LA 70809
#11 Jake's Pros
Based in Denham Springs, 13 mi away
89/100CR ScoreRanked #11 because of its Google rating and availability: 4.7★ from 740 Google reviews, open 24/7.
- 4.7★ from 740 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 33719 LA-16, Denham Springs, LA 70706
Based in Village Saint George, 2 mi away
88/100CR ScoreRanked #12 because of its Google rating and availability: 4.8★ from 40 Google reviews, open 24/7.
- 4.8★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#13 Roto-Rooter
Based in Baton Rouge, 12 mi away
87/100CR ScoreRanked #13 because of its Google rating and availability: 4.5★ from 414 Google reviews, open 24/7.
- 4.5★ from 414 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Baton Rouge, 6 mi away
86/100CR ScoreRanked #14 because of its Google rating and availability: 4.8★ from 1,886 Google reviews, open 24/7.
- 4.8★ from 1,886 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2027 N Harco Dr, Baton Rouge, LA 70815
Based in Baton Rouge, 2 mi away
86/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5608 Tennyson Dr, Baton Rouge, LA 70817
Based in Denham Springs, 5 mi away
86/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 20 Google reviews, open 24/7.
- 5.0★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23438 Odette Ave, Denham Springs, LA 70726
#17 Pro Plumbing
Based in Baton Rouge, 11 mi away
86/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 63 Google reviews, open 24/7.
- 5.0★ from 63 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 819 St Louis St Ste G, Baton Rouge, LA 70802
Based in Baton Rouge, 3 mi away
85/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 49 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 49 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Based in Baton Rouge, 5 mi away
83/100CR ScoreRanked #19 because of its Google rating and availability: 4.5★ from 18 Google reviews, open 24/7.
- 4.5★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Gonzales, 17 mi away
83/100CR ScoreRanked #20 because of its Google rating and trade focus: 5.0★ from 114 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 114 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun 9 AM–5 PM
- Address
- 9512 James Aymond Dr, St Amant, LA 70774
Based in Woodmere, 24 mi away
83/100CR ScoreRanked #21 because of its Google rating and availability: 5.0★ from 54 Google reviews, open 24/7.
- 5.0★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Baton Rouge, 3 mi away
83/100CR ScoreRanked #22 because of its Google rating and availability: 4.9★ from 111 Google reviews, open 24/7.
- 4.9★ from 111 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11232 Cedar Park Ave, Baton Rouge, LA 70809
Based in Prairieville, 9 mi away
83/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 32 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 43253 Pond View Dr, Prairieville, LA 70769
Based in Port Allen, 13 mi away
83/100CR ScoreRanked #24 because of its Google rating and availability: 4.7★ from 181 Google reviews, open 24/7.
- 4.7★ from 181 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2317 American Way, Port Allen, LA 70767
Based in Denham Springs, 10 mi away
82/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 28 Google reviews, listed on Google as “Plumber”.
- 5.0★ from 28 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 25687 Palmwood Ct, Denham Springs, LA 70726
Plumbers ranked #26 to #36
#1 to #25 are shown in full above. Here are #26 to #36, in CR Score order; each links to its profile. We publish the top 36 of 143 ranked plumbers here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Southern Boys Plumbing LLC | 82 | 5.0★ (25) | 17 mi |
| 28 | Marchand's Plumbing | 82 | 3.7★ (11) | 9 mi |
| 36 | BeBop Plumbing | 80 | 5.0★ (23) | 14 mi |
Also serving Old Jefferson
1 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 |
|---|---|---|
| B & D Plumbing Co | 4.1★ (77) | 5 mi |
How much do plumbers cost in Old Jefferson?
National price ranges in USD, not adjusted for Old Jefferson. 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 Louisiana
In Louisiana, State Plumbing Board of Louisiana licenses Plumbing work: water supply, drain, waste and vent piping and fixtures.
- 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 Old Jefferson plumbers
We scored 143 Old Jefferson 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 Old Jefferson 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 Old Jefferson: frequently asked questions
Who is the best plumber in Old Jefferson?
By CR Score, the highest-ranked plumber in Old Jefferson, LA is Trinity Plumbing with a CR Score of 92/100. It has 4.9★ from 412 Google reviews. It is open 24/7. Southern Air Heating, Cooling, & Plumbing (#2) and Brotherhood Plumbing (#3) follow. We ranked 143 plumbers on 8 factors, last updated October 22, 2026.
How many plumbers are there in Old Jefferson?
ContractorsRanked ranks 143 plumbers serving Old Jefferson, LA. Another 1 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which plumbers in Old Jefferson are open 24/7?
32 ranked plumbers in Old Jefferson post 24/7 hours. The highest-ranked are Trinity Plumbing (#1), Southern Air Heating, Cooling, & Plumbing (#2) and Brotherhood Plumbing (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which plumbers in Old Jefferson work on weekends?
56 of 143 ranked plumbers post Saturday hours and 40 post Sunday hours. The highest-ranked open Saturdays are Trinity Plumbing (#1), Southern Air Heating, Cooling, & Plumbing (#2) and Brotherhood Plumbing (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check a plumber's license in Louisiana?
In Louisiana, State Plumbing Board of Louisiana handles licensing and covers Plumbing work: water supply, drain, waste and vent piping and fixtures.
How much does water heater replacement cost in Old Jefferson?
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 Old Jefferson. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Old Jefferson plumbers have?
The median Google rating among 143 rated plumbers in Old Jefferson is 4.8★, with a median of 19 reviews. Southern Air Heating, Cooling, & Plumbing has the most, 2,986 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 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 Old Jefferson
- October 2026: CR Scores recalculated for 143 plumbers serving Old Jefferson.
- October 2026: 1 duplicate listing merged.
More plumbers and Old Jefferson pages
Plumbers near Old Jefferson
- Plumbers in Shenandoah, LA144 ranked
- Plumbers in Village Saint George, LA142 ranked
- Plumbers in Inniswold, LA139 ranked
- Plumbers in Oak Hills Place, LA141 ranked
- Plumbers in Prairieville, LA140 ranked
- Plumbers in Monticello, LA140 ranked
- Plumbers in Gardere, LA136 ranked
- Plumbers in Denham Springs, LA144 ranked
- Plumbers in Merrydale, LA134 ranked
- Plumbers in Saint Gabriel, LA134 ranked
Other trades in Old Jefferson
- Roofers in Old Jefferson230 ranked
- Electricians in Old Jefferson150 ranked
- HVAC contractors in Old Jefferson216 ranked
- General contractors in Old Jefferson220 ranked
- Painters in Old Jefferson106 ranked
- Landscapers in Old Jefferson126 ranked
- Handymen in Old Jefferson46 ranked
- Kitchen remodelers in Old Jefferson79 ranked
- Bathroom remodelers in Old Jefferson75 ranked
- Flooring contractors in Old Jefferson64 ranked
- Tile installers in Old Jefferson28 ranked
- Drywall contractors in Old Jefferson10 ranked
- Concrete contractors in Old Jefferson65 ranked
- Fence contractors in Old Jefferson66 ranked
- Deck builders in Old Jefferson41 ranked
- Siding contractors in Old Jefferson49 ranked
- Window installers in Old Jefferson36 ranked
- Gutter installers in Old Jefferson72 ranked
- Insulation contractors in Old Jefferson34 ranked
- Solar installers in Old Jefferson11 ranked
- Garage door repair companies in Old Jefferson17 ranked
- Foundation repair companies in Old Jefferson23 ranked
- Tree services in Old Jefferson81 ranked
- Masonry contractors in Old Jefferson29 ranked
- Water damage restoration companies in Old Jefferson71 ranked
- Home builders in Old Jefferson109 ranked
- Demolition contractors in Old Jefferson25 ranked
- All contractors in Old Jefferson