92
ExceptionalFullerton, CA 92831 4.9(1,827 reviews)
PlumbingWater heaters
Fullerton, California · Plumbing
Plumbers in Fullerton, CA
4 plumbers in Fullerton, out of 51 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.
- Pros
- 4
- Avg. score
- 52
- Scored
- 3
Summary
Data last updatedAs of October 1, 2026, the ProComfort Registry lists 4 plumbers in Fullerton, California. Most-listed specialties: heating & furnaces (3), air conditioning (2), drains & sewer (1), water heaters (1). 3 have enough public signals for a Registry Score, averaging 52 out of 100; 1 scores 70 or higher. Together they hold 1,829 public reviews on Google, Yelp and Facebook. The highest-scored is Water Heater Warehouse, at 92 out of 100. View Water Heater Warehouse.
Counts come straight from the Registry's records. How the Registry Score works
Showing 1–4 of 4
52
EstablishedFullerton, CA 92832 4.2(2 reviews)
HVACPlumbingHeatingA/C
12
Developing—
Not yet ratedPlumbers in Fullerton: at a glance
- How many plumbers are in Fullerton, California?
- As of October 1, 2026, the ProComfort Registry lists 4 plumbers in Fullerton, California.
- Who is the highest-scored plumber in Fullerton, California?
- By Registry Score, Water Heater Warehouse (Fullerton, CA) ranks first at 92 out of 100, among 3 scored businesses averaging 52. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
- How are plumbers in Fullerton, California ranked?
- By Registry Score (0-100, from public reviews, digital presence and reach), with records confirmed by their owners listed first. The full method is at https://procomfortregistry.online/methodology.
What this list includes: plumbing businesses, including drain, sewer, pipe, leak and water heater work. Tags come from each business's public category and name, so a company can appear under several trades. Plumbers across the US