Find Nearby Plumbers In Corona, California

Empire Leak Detection & Plumbing demonstrates strong professionalism, technical expertise, and project completion across multiple reviews, with staff consistently praised for responsiveness, honesty, and problem-solving ability. However, pricing is a significant concern: multiple recent reviews (2020-2022) explicitly flag excessive charges, hidden fees, and alleged fraudulent practices involving referral networks. Positive reviews emphasize fair pricing and value, but negative reviews describe charges of $400-$3200 for services quoted elsewhere at $200-$275, creating a stark contradiction. The company's score is substantially depressed by serious allegations of insurance fraud and elder exploitation in three detailed 2022 reviews, which appear credible and corroborated by cross-references to specific business names and license numbers.

• CRITICAL: Three detailed negative reviews (2022-01-28, 2022-07-31, 2022-08-09) allege systematic insurance fraud, elder exploitation, and collusion with referral networks (Staiger Plumbing, Superior Integrated Services/Carlo Terzian). These reviews cite specific business license numbers, BBB complaints, and insurance company investigations. While these could be disputed claims, they are detailed, consistent, and specific—not generic complaints.
• PRICING CONTRADICTION: Positive reviews (2015-2019) describe fair pricing and value; negative reviews (2020-2022) describe egregious overcharging ($2000 for 2.5 hrs labor, $3200 for 3 fans for 3 days, $400 leak detection fee vs. $200-$275 elsewhere). This suggests either a dramatic business model shift or systematic pricing abuse.
• RECENCY BIAS: Most positive reviews are from 2015-2019 (older than 5 years). Most serious negative reviews are from 2020-2022 (recent). This temporal pattern suggests deterioration in business practices or ethics over time.
• REFERRAL NETWORK CONCERNS: Multiple negative reviews describe the company calling in 'referrals' without customer permission or quotes, then billing exorbitant amounts. This pattern appears in 3 separate reviews and suggests predatory upselling practices.
• BBB CLAIM DISCREPANCY: One negative review states the company claims an A+ BBB rating but BBB shows no rating. This is a verifiable claim that could indicate false advertising.

This score should be treated with CAUTION. While the numerical WW Score of 72.8 reflects strong professionalism and experience, it masks a serious bifurcation in the data: older reviews (2015-2019) are uniformly positive and describe honest service; recent reviews (2020-2022) contain detailed allegations of fraud and systematic overcharging. The company's trustworthiness cannot be reliably assessed without investigation into the 2022 fraud allegations and insurance company litigation claims. Customers should independently verify current business practices and seek multiple quotes before engaging this company.

GL Plumbing demonstrates solid project completion and technical experience based on multiple positive reviews praising reliability and problem-solving. However, a severe 1-star review from 2021 describing incomplete work, communication issues, and a major leak post-service significantly impacts the professionalism score. The positive reviews, while detailed, are predominantly older (2010–2020), with only one recent positive review from 2020. Pricing is mentioned favorably but in limited detail. The stark contrast between the recent negative experience and older positive feedback suggests either inconsistency in service quality or a significant operational change.

• RECENCY CONCERN: Most positive reviews are 4–13 years old (2010–2020). Only one positive review from 2020; the most recent review (2021) is severely negative, suggesting possible service degradation.
• CRITICAL NEGATIVE INCIDENT: The 2021 review alleges incomplete work (washer non-functional), poor communication (talking to himself, dismissive attitude), and a major water leak introduced during service. This is a serious quality and professionalism failure.
• POTENTIAL FAKE REVIEW PATTERN: Reviews from 2016–2020 show similar phrasing ('highly recommend,' 'knowledgeable,' 'reliable,' 'goes above and beyond') with generic praise and no specific problem details. While not conclusive, this pattern warrants caution.
• SMALL SAMPLE SIZE: Only 6 reviews total limits statistical reliability. The single recent negative review carries disproportionate weight.

This score should be treated with caution due to small sample size, significant age of most positive reviews, and a recent critical failure that contradicts the historical narrative. The 2021 incident suggests current service quality may not match the older positive reviews, and the score may not reflect present-day performance.

CalStar Mobile Home Construction has a deeply polarized review profile spanning roughly a decade. Positive reviews frequently praise specific staff members by name, describe timely arrivals, reasonable pricing, and satisfying completed work — particularly for leveling, plumbing, roofing, and flooring. However, a substantial and credible body of negative reviews describes a recurring pattern of predatory upselling targeting elderly and senior homeowners, work left incomplete or done poorly, billing disputes including unauthorized credit card charges, rude or dismissive staff and ownership, and unlicensed workers performing electrical and other regulated work. The pricing dimension is particularly conflicted: many reviewers praise affordability while an almost equal number describe being significantly overcharged or misled on scope. Project completion suffers from multiple accounts of jobs not finished as contracted, warranty claims ignored, and follow-up inspections used as opportunities to sell additional unnecessary work rather than verify quality.

• SUSPECTED FAKE REVIEWS: A cluster of 5-star reviews dated 2024-09-12 (four reviews posted on the same date) use nearly identical phrasing — 'above and beyond,' 'great customer service,' 'workers were great' — with no specific job details, worker names, or unique circumstances. These are highly likely to be inauthentic.
• SUSPECTED FAKE REVIEWS: Two reviews dated 2023-04-06 are word-for-word identical, strongly indicating a duplicated or fabricated submission.
• ELDER TARGETING PATTERN: Multiple independent reviewers across different years (2014, 2017, 2018, 2019, 2024) explicitly describe a pattern of targeting senior and elderly mobile home residents with inflated or unnecessary repair quotes, high-pressure same-day sales tactics, and work performed by potentially unlicensed workers. This is a serious and recurring concern.
• UNLICENSED WORKERS: At least two reviews explicitly allege that electrical work was performed by unlicensed individuals, and one review references reporting the company to the CSLB (California State License Board).
• UNAUTHORIZED BILLING: One detailed review describes a credit card being charged for the remaining balance without customer authorization.
• BRIBERY ALLEGATION: One reviewer alleges that a company representative offered a gift card in an attempt to have a negative review removed.
• OWNER CONDUCT: Multiple reviews describe the owner (Justin) as condescending, argumentative, and retaliatory in responses to negative reviews, including alleged uninvited visits to a customer's home.
• RECENCY NOTE: Reviews span from 2014 to 2025. Negative reviews are distributed across the entire timeline, indicating these are not isolated incidents but a persistent pattern. Recent 2025 reviews include both strong positives and a detailed negative account of incomplete contracted work and roof damage caused by the company.
• SCORE RELIABILITY IMPACT: The high volume of suspected fake 5-star reviews artificially inflates the raw star average. Scores have been conservatively adjusted to reflect the credible negative review content.

This WW Score of 62.1 is based on a large review set with HIGH data confidence across all dimensions, but should be interpreted cautiously due to strong evidence of fake or coordinated positive reviews, a persistent multi-year pattern of alleged elder financial exploitation, unlicensed work, and incomplete project delivery — consumers are strongly advised to obtain multiple independent quotes and verify licensing before engaging this contractor.

RC's Plumbing and RCS/Reeds Crew Services presents a deeply divided review profile. A meaningful subset of customers — particularly those who worked directly with named technicians like Sergio, Wes, and Robert on private jobs — report excellent professionalism, clear communication, punctuality, and quality workmanship. However, a substantial number of negative reviews, many recent and detailed, describe serious failures: ignored calls, no-shows, incomplete or fraudulent job reporting to home warranty companies, hidden or inflated charges, and an argumentative owner. Pricing is a particular flashpoint, with multiple reviewers citing unexpected upcharges and a refusal to itemize invoices, while a smaller number praised fair and transparent pricing. Project completion is significantly undermined by multiple credible accounts of work being marked complete when nothing was done, a technician failing to fix an issue after two visits, and a plumber leaving a drain disconnected causing water damage. The experience dimension scores higher due to several detailed, credible accounts of skilled diagnosis and quality installation, but is offset by reviews describing mediocre or incomplete technical work.

• DUPLICATE REVIEWS DETECTED: At least three reviews appear to be exact duplicates posted on the same date — 'Robert was good to work with and accommodating...' (2024-06-21, posted twice) and 'Good installer to work with. Very open and delivered on each and every point...' (2024-05-18, posted twice) and 'On time, on point, on my future call list for plumbing!' (2024-05-09, posted twice). These duplicates have been counted as single reviews each for scoring purposes and are a potential indicator of review manipulation.
• FAKE REVIEW SUSPICION — MODERATE: Several 5-star reviews are extremely brief and generic (e.g., 'Great service at a great price', 'High quality work. Very professional.', 'Speedy response, good customer relations skills, excellent work') with no specifics, names, or job details. These may inflate the positive review count.
• HOME WARRANTY CONTEXT BIAS: A large proportion of negative reviews involve customers assigned through home warranty companies (Old Republic, First American). This context may introduce selection bias — dissatisfied warranty customers may be more likely to review — but the specific and detailed nature of many complaints (false job completion reports, unexplained charges, refusal to give name) suggests genuine misconduct rather than mere dissatisfaction.
• RECENCY CONCERN — NEGATIVE TREND: The most recent reviews (2024) skew heavily negative, with 5 of 6 datable 2024 reviews being 1-star. This is a meaningful signal of declining service quality or worsening customer relations in the past 12 months.
• OWNER CONDUCT FLAG: Multiple independent reviews from different time periods describe the owner (Robert) as rude, argumentative, and dismissive. One 2024 review explicitly describes the owner engaging in hostile online arguments rather than addressing customer concerns. This is a consistent pattern across years and reviewers.
• FRAUDULENT REPORTING ALLEGATION: Multiple reviewers allege that the company reported jobs as 'complete' to home warranty companies when no work was performed. This is a serious integrity concern that goes beyond poor service quality.
• BLANK REVIEW: One review (2019-11-06, 5-star) contains no text and has been excluded from dimension scoring but counted in total reviews analyzed.

This WW Score is based on a large review set with HIGH mention counts across all dimensions, but reliability is meaningfully reduced by confirmed duplicate reviews, a pattern of suspected fake brief 5-star reviews, serious fraud allegations, and a clear negative trend in the most recent 12 months — consumers should weight recent negative reviews heavily and treat this score as a ceiling rather than a reliable average.

American Plumbing & Rooter presents a deeply mixed picture across all four dimensions. On the positive side, numerous individual plumbers — Manny, Johnny, Joe (in one instance), Ruben, Cris, and others — received glowing praise for professionalism, technical skill, and going above and beyond to solve difficult problems. Pricing was frequently cited as reasonable or fair, and several reviewers noted transparent estimates that held firm. However, significant and recurring negatives drag every dimension down: multiple reviews describe repeat visits that failed to resolve the same issue, a plumber who refused to enter a crawl space, a flooded home caused by failure to shut off water, and a pattern of missed or rescheduled appointments without proactive communication. The phone/dispatch operation was specifically criticized in multiple reviews for poor communication, unprofessional conduct, and failure to follow through on commitments. Project completion is the most damaged dimension, with several reviewers requiring 3–4 visits for the same problem, work left incomplete, and at least one case of apparent upselling that did not resolve the original issue.

• RECENCY WARNING: The majority of reviews are from 2013–2018, with only two reviews from 2019–2022. The score may not reflect current service quality. The most recent review (2022) is negative.
• COMPANY NAME CONCERN: One reviewer explicitly flags that this company operates under multiple names including 'American,' 'Express,' and 'Action.' This may indicate reputation management issues or attempts to obscure a mixed track record.
• RECURRING FAILURE PATTERN: At least 4 independent reviews describe the same core failure — multiple visits to the same property without resolving the original problem. This is a systemic quality-control issue, not isolated incidents.
• DISPATCHER/RECEPTIONIST PATTERN: At least 4 reviews specifically criticize the phone/dispatch staff for unprofessional behavior, poor communication, missed callbacks, and in one case hanging up on a customer. This is a consistent operational weakness.
• TECHNICIAN QUALITY VARIANCE: Reviews reveal extreme variance between individual technicians — some (Johnny, Manny, Joe in one case, Ruben) are praised as exceptional, while others (Robert, Joe in another case, Oscar) are described as incompetent or unprofessional. The company score reflects this high variance.
• ONE REVIEW APPEARS TO BE FOR A DIFFERENT COMPANY: The review praising 'ResTech Plumbing and Drain' and providing their phone number (951-737-5800) appears to be a misplaced or spam review for a competitor. It was excluded from scoring but counted in total reviews analyzed.
• NO STRONG FAKE REVIEW PATTERN DETECTED: Reviews vary significantly in length, detail, tone, and rating. Named technicians appear across multiple reviews. No coordinated fake review pattern identified, though the volume of generic 5-star reviews from 2017–2018 warrants mild caution.

This WW Score is based on 33 reviews spanning approximately 10 years, with HIGH mention counts across all dimensions, but reliability is moderated by the age of most reviews, extreme technician-to-technician quality variance, and a documented pattern of project completion failures that suggests systemic rather than isolated problems.

Routhier Plumbing has a clearly mixed track record across the 8 reviews analyzed. Positive reviews consistently praise fair pricing, responsiveness, and courteous service, with several customers describing Tom as a trusted long-term plumber. However, two significant negative reviews meaningfully drag down the scores: one describes repeated no-shows and broken commitments that caused real scheduling harm, and another details a serious lapse in diagnostic judgment — skipping camera inspection, subcontracting work without disclosure, and attempting to mark up a rented jetter as his own equipment. These are not minor complaints; they reflect failures in professionalism, project execution, and technical decision-making. The positive reviews are genuine and specific, but they are largely older (2015–2018), while the negative reviews span 2021 and earlier, making recency a concern. The WW Score reflects a contractor with real strengths but documented, serious failures that prospective customers should weigh carefully.

• RECENCY WARNING: The most recent positive review is from October 2022, but most positive reviews are from 2015–2019 — over 5 years old. The negative reviews from 2021 and 2016 are more recent than the bulk of positive feedback, which is a concern.
• NO-SHOW PATTERN: One review (2016) documents two consecutive missed appointments with no advance notice, indicating a reliability issue that is not isolated given the 2021 review also describes poor follow-through and communication.
• ETHICAL CONCERN: The 2021 negative review alleges Tom misrepresented a rented jetter as his own equipment and attempted to charge $450 for a service that cost him $250 — this is a transparency and pricing integrity issue that significantly impacts the pricing and professionalism scores.
• DIAGNOSTIC FAILURE: The 2021 review describes a clear failure to apply basic diagnostic steps (camera inspection before jetting), resulting in wasted time and money for the customer. This is a meaningful mark against the experience dimension.
• SMALL SAMPLE SIZE: Only 8 reviews total. While scores can be calculated, the limited sample means a single bad or good experience has outsized influence on the overall score. Treat this report with appropriate caution.

This WW Score carries MODERATE overall reliability — the review set is small (8 reviews), spans nearly a decade with most positive reviews being 5+ years old, and includes two substantive negative reviews that raise legitimate concerns about consistency, transparency, and technical judgment that cannot be dismissed.