Find Nearby Plumbers In Redwood City, California

Prestige Plumbing Solutions has a strong base of positive reviews praising professionalism, punctuality, shoe-cover etiquette, and communication — particularly from technicians Zac and Robert. Pricing is frequently cited as competitive or better than alternatives, with one standout case where the owner honored a quote despite scope expansion. However, the score is meaningfully pulled down by several credible negative reviews: a no-show with no callback (2013), an unresolved estimate follow-up where a $125 fee was taken and no callback was made (2015), a case where a bathroom sink repair was incomplete and required a second plumber, a late arrival with missing parts (2015), and an overcharge complaint on a follow-up visit. Project completion is the most mixed dimension, with multiple instances of first-visit failures requiring callbacks or outside intervention. The large volume of 'unknown' reviews (8 reviews with no text) and the heavy skew of older reviews (most substantive reviews are from 2011–2015) further limit confidence in current performance.

• 8 reviews contain only the text 'unknown' with no usable content — these were excluded from scoring but counted in total reviews analyzed.
• The first review discloses that the reviewer is a personal friend of the owner ('Berto is a very good friend of mine'), which introduces potential bias and was weighted accordingly.
• The majority of detailed, substantive reviews are from 2011–2015, making them 9–13 years old. Only 4 reviews are from 2018 or later, and only 3 are from 2023–2024. Current performance cannot be reliably inferred from this data.
• There is a credible 1-star review (2015) describing a $125 diagnostic fee taken with no follow-up estimate ever provided — a serious trust and ethics concern.
• There is a credible 1-star review (2013) describing a no-show appointment with no call and no callback when the customer followed up — a direct professionalism failure.
• One review (2015) explicitly states the bathroom sink repair was incomplete and required a second plumber to fix — a clear project completion failure.
• One review (2015) notes the technician arrived 30 minutes late and did not have a standard branded part on hand.
• One review (2015) states 'Overcharged on follow up' with no further detail — flagged as a pricing concern.
• Several 5-star 'unknown' reviews with no text and no detail cannot be used to support any dimension score and may artificially inflate the star average on source platforms.

This WW Score carries moderate-to-high reliability in terms of volume, but significant caution is warranted due to the age of most reviews, multiple credible negative incidents involving no-shows, incomplete work, and a fee-without-service complaint, and the exclusion of 8 content-free 'unknown' reviews that cannot be scored.

The aggregate review pool spans multiple businesses operating under similar names (Pro Plumbing, Oro Pro Plumbing, Pro Plumbing Heating and Air), which introduces noise but also reflects a broad pattern of service quality. The majority of positive reviews praise punctuality, politeness, and clear communication, driving a moderate-to-good professionalism score. However, a meaningful cluster of negative reviews — including complaints about rude staff, missed appointments, no-shows, and unresponsive management — prevents a high professionalism score. Pricing is the weakest dimension: multiple reviewers explicitly called out overcharging, non-itemized invoices, inflated quotes (sometimes 4x competitors), and questionable billing practices, pulling the pricing score down significantly. Project completion is mixed — many jobs were completed well and on time, but several reviews describe abandoned work, failed inspections, jobs requiring correction by other companies, and warranty disputes. Experience scores moderately well overall, with many reviewers praising knowledgeable technicians, but offset by reviews citing misdiagnosis, incorrect installations, and work that failed inspection multiple times.

• MULTIPLE BUSINESS ENTITIES: Reviews appear to reference at least three distinct businesses — 'Pro Plumbing', 'Oro Pro Plumbing', and 'Pro Plumbing Heating and Air' — operating under similar names. Scores may reflect blended performance across different companies and should be interpreted with caution.
• 25 reviews contain no text (rating only). These were excluded from dimension scoring as they provide no usable evidence per scoring rules.
• FAKE REVIEW RISK — MODERATE: A significant cluster of reviews dated 2024-06-09 and 2025-05-10 share very similar generic phrasing ('great job', 'very professional', 'highly recommend') with no specific job details. While not conclusive, this pattern warrants reduced confidence in the upper end of positive scores.
• DRIVER CONDUCT REVIEWS: At least 4 reviews (2019, 2023, 2024) describe dangerous or rude driving by company vehicle operators. These are not directly scorable under the four dimensions but reflect negatively on overall brand professionalism.
• RECENCY NOTE: Reviews span from 2009 to 2025. A large volume of reviews are from 2024-2025 and carry full recency weight. Older reviews (pre-2020) were down-weighted in scoring. Negative patterns (overcharging, incomplete work, warranty disputes) appear consistently across all time periods, suggesting systemic rather than isolated issues.
• BILLING AND WARRANTY CONCERNS: Multiple independent reviewers across different years explicitly describe non-itemized invoices, charges for work not performed, warranty fees on warranted equipment, and refusal to provide cost breakdowns. This is a recurring and credible pattern that materially depresses the pricing score.
• INCOMPLETE WORK PATTERN: At least 4 reviews describe jobs that were not completed, required a second company to finish or correct, or failed inspection multiple times. This is a credible and recurring pattern affecting the project completion score.

This WW Score is based on a large review volume (196 total, 171 with usable data) spanning over a decade, giving HIGH statistical confidence in the score direction, but reliability is moderated by the likely blending of multiple business entities under similar names, a detectable cluster of generic positive reviews suggesting possible review inflation, and consistent negative patterns around pricing transparency and project completion that appear across independent reviewers and multiple time periods.

Cal West Plumbing receives strong praise across the majority of reviews for professionalism, responsiveness, and technical skill, with multiple reviewers highlighting prompt arrivals, courteous service, and knowledgeable technicians capable of complex jobs like trenchless sewer replacement and slab work. Pricing is consistently described as fair, reasonable, or affordable across nearly half the reviews, which is a genuine positive signal. However, two serious negative reviews — one from 2020 describing months of delays, abandoned contract work, ignored communications, and a Licensing Board complaint, and one from 2015 citing a no-show on day 4 of a job — meaningfully drag down the project completion and professionalism scores. A third negative review from 2012 describes sloppy workmanship including improper material substitution and unsafe cleanup. These negative reviews represent a real pattern of risk that cannot be dismissed, even if they are older.

• RECENCY CONCERN: The majority of positive reviews are clustered in September 2024 and 2019-2020. The five reviews posted within a 5-day window in late September 2024 (Sept 25-29) are suspicious in their timing and should be treated with caution.
• POSSIBLE FAKE REVIEW PATTERN: The five September 2024 reviews share very similar structure — brief, warm, generic praise with limited specific detail — and were posted within days of each other. This cluster may represent solicited or incentivized reviews rather than organic feedback.
• SERIOUS NEGATIVE FLAG: One 1-star review (2020) describes a formal Licensing Board complaint and BBB report for contract abandonment, chronic delays, ignored communications, and defensive blame-shifting. This is a significant red flag for project completion and professionalism.
• SECONDARY NEGATIVE FLAG: A 2-star review (2015) describes a no-show on day 4 of an active job and raises concerns about business license identity, suggesting possible misrepresentation.
• WORKMANSHIP CONCERN: A 1-star review (2012) describes improper material substitution (copper replaced with cheap plastic), failure to clean up, and leaving sharp screws scattered on the garage floor — a safety hazard.
• MULTIPLE OPERATORS: One reviewer notes Cal-West may have two separate operators with different phone numbers, suggesting the reviews may not all refer to the same individual or team, which reduces score reliability.
• RECENCY NOTE: Several high-scoring reviews are from 2016-2019 and carry reduced weight per recency rules. The most recent negative review is from 2020, which is within the past 5 years and remains relevant.

This WW Score carries moderate-to-high data volume but should be treated with caution due to a suspicious cluster of same-week 5-star reviews in September 2024, at least two credible and detailed negative reviews describing contract abandonment and poor workmanship, and uncertainty about whether all reviews refer to the same operator within the Cal West Plumbing brand.

Peninsula Plumbing receives consistently positive feedback across all four scored dimensions, with professionalism and responsiveness being the most frequently praised qualities — multiple reviewers specifically highlighted fast response times, courteous technicians, and good communication. Project completion scores well because the majority of reviews confirm the job was finished successfully in a single visit, including urgent situations like flooded drains and failed water heaters. Pricing is mentioned positively in three reviews, with references to affordability, fair pricing, a military discount, and a waived overtime charge, though the limited mention count keeps confidence at MODERATE for that dimension. Technical experience is supported by several reviews describing correct diagnosis, code-compliant installations, and effective problem-solving. All reviews are 5-star and span roughly 8 months (December 2020 to August 2021), which introduces a mild concern about review diversity, though most contain specific details that lend credibility.

• All 9 reviews are 5-star with no negative or mixed feedback — this is a potential indicator of a skewed or incomplete review sample.
• All reviews fall within a narrow 8-month window (December 2020 – August 2021); no reviews from the past 12 months relative to a current evaluation date, meaning recency is a concern and the score may not reflect current performance.
• Multiple technician names appear (Andy, Andres, Anthony, Marco) which adds some authenticity, but the uniformly glowing tone across all reviews warrants mild caution.
• Review sample size is small (9 reviews total), which limits the statistical reliability of all dimension scores.

This WW Score carries moderate reliability — the reviews contain enough specific detail to be largely credible, but the small sample size, exclusively 5-star ratings, and age of all reviews (all over 1 year old) mean the score should be treated as a reasonable but not definitive indicator of current contractor quality.

State Plumbing demonstrates strong technical expertise and knowledge (85/100), with multiple reviews praising staff competence and rare parts availability. However, professionalism is inconsistent—while many reviews highlight friendly and helpful service, negative reviews cite rude scheduling staff and dismissive attitudes. Pricing is a significant concern, with multiple customers reporting overcharges, unexplained billing discrepancies, and prices substantially above market rates. Project completion data is limited to two reviews with mixed results. The business appears to function primarily as a parts supplier rather than a full-service contractor, which explains the limited project completion mentions.

• RECENCY BIAS: 8 of 14 reviews are older than 5 years (2012 or earlier). Only 2 reviews from 2023. Historical positive reviews may not reflect current operations.
• BILLING CONCERNS: Two detailed reviews (2017, 2017) document serious billing irregularities including unauthorized charges, unexplained price increases, and unresponsive customer service regarding financial disputes. These are specific, credible complaints with dates and amounts.
• BUSINESS MODEL CONFUSION: Reviews conflate State Plumbing as both a parts supplier and a plumbing contractor. The 2023 review references 'State Street plumbing' as a contractor service, while most other reviews treat it as a parts house. This may indicate different service lines or customer confusion.
• PRICING VOLATILITY: Multiple reviews (2017, 2017, 2011) mention pricing concerns ranging from overcharges to market-rate disputes, suggesting inconsistent or aggressive pricing practices.
• PROFESSIONALISM INCONSISTENCY: Strong contrast between reviews praising 'nicest people' and 'old school service' versus complaints of rude, dismissive staff and appointment cancellations.

This score should be treated with caution due to significant recency bias (57% of reviews older than 5 years), conflicting service descriptions, and serious unresolved billing complaints that suggest operational or ethical issues. The high experience score is well-supported, but professionalism and pricing concerns are credible and specific enough to warrant skepticism about current service quality.

Regina Plumbing shows a deeply split profile: a strong core of loyal, satisfied customers praising responsive scheduling, skilled plumbers, and professional on-site conduct, offset by a persistent and serious pattern of billing complaints spanning over a decade. The pricing dimension is the weakest area, dragged down by multiple explicit complaints about undisclosed travel charges, billing for time not worked, and hostile office staff responses when customers questioned invoices — a pattern consistent across reviews from 2012 through 2024. Project completion is moderate; while many jobs were finished well and on time, there are documented cases of abandoned work, unresolved callbacks, and at least one customer who took the company to small claims court twice. Professionalism scores reflect the tension between generally well-regarded field plumbers and a consistently criticized office/billing staff whose rudeness is mentioned in numerous independent reviews. Experience scores are relatively stronger, with many reviewers praising technical skill, problem-solving, and thoroughness of individual plumbers like Marvin, Efrain, and Scott.

• BILLING PATTERN WARNING: A recurring and multi-year pattern (2012–2024) of undisclosed travel/transit charges, billing for more hours than worked, and hostile office staff responses to billing disputes is documented across at least 8 independent reviews. This is a systemic issue, not isolated incidents.
• OFFICE STAFF CONDUCT: Multiple independent reviewers explicitly describe the office/billing staff as rude, hostile, or screaming at customers. This is a significant and consistent negative signal.
• SMALL CLAIMS COURT: One reviewer reports taking Regina Plumbing to small claims court twice and winning both judgements, with a third unresolved leak attributed to their prior work. This is a serious flag.
• ABANDONED WORK: At least one review (2024) describes plumbers leaving without fixing the problem and making it worse, then billing for the visit. One older review also describes unresolved callbacks.
• RECENCY NOTE: The most recent reviews (2024, early 2024) are negative and focus on billing and incomplete work. The positive reviews are more heavily concentrated in the 2011–2022 range. This suggests a possible decline in service quality or consistency in recent years.
• CONTRACTOR LICENSE FLAG: One reviewer (2017) noted that the company removed its contractor license number from invoices mid-job, which is a regulatory concern worth noting.
• NO FAKE REVIEW PATTERNS DETECTED: Reviews vary significantly in length, detail, writing style, and sentiment. Negative reviews are specific and credible. No evidence of coordinated fake positive reviews.

This WW Score is based on 46 reviews spanning 2007–2024 with high mention counts across all four dimensions, making it statistically reliable; however, the score should be interpreted cautiously given the documented systemic billing misconduct, hostile office staff behavior, and recent negative trend in 2023–2024 reviews.