Find Nearby Plumbers In Daly City, California

Jose Nolasco demonstrates strong overall performance across all dimensions. Professionalism is consistently praised with 11 mentions highlighting responsiveness, punctuality, politeness, and courteous behavior (shoe covers, answering questions). Pricing receives strong marks across 8 mentions for fairness and transparency, with customers noting reasonable quotes and no hidden charges. Project completion shows solid execution with 10 mentions of follow-through, though one notable issue involved incomplete callback work that was eventually resolved. Experience is well-documented across 9 mentions, with customers praising technical knowledge, problem-solving ability, and quality workmanship. The one significant concern involves a billing dispute with Michelle Garcia (early 2024) where a customer was charged without clear communication, though Jose ultimately refunded the full amount when contacted.

• One serious incident in August 2024: Michelle Garcia charged customer $150 for unnecessary water heater replacement diagnosis (filter was clogged, not heater broken). Customer protested and Jose refunded after returning from vacation. This suggests potential quality control or communication issues with staff/partners.
• One follow-through issue in February 2024: Jose promised to return to secure a water pipe but failed to do so until customer sent final text reminder. This contradicts the otherwise strong project completion pattern.
• Most reviews (10 of 13) are from 2022, with only 3 from 2023-2024. Recent performance may differ from historical baseline.
• No fake review patterns detected. Reviews contain specific details, varied experiences, and authentic voice variation.

This WW Score of 87.2 is highly reliable based on 13 reviews with consistent data across all dimensions and HIGH confidence levels. However, the two recent incidents (2024) suggest potential deterioration in quality control or communication protocols that warrant monitoring of future reviews.

James & James Plumbing demonstrates strong performance across professionalism, project completion, and technical expertise, with 13 mentions of professional conduct (punctuality, communication, courtesy) and 12 mentions of reliable job completion. Experience is well-documented across 9 reviews highlighting diagnostic skill and quality workmanship. However, pricing emerges as a concern: while most reviews praise fair pricing, one detailed 2023 review explicitly flags significant overcharging ($1,140 vs. $500 market rate for identical work), substantially lowering the pricing dimension score. The contractor shows consistent strength in responsiveness and follow-through, but price transparency and fairness require caution.

• Pricing concern: One substantive 2023 review documents a 128% price markup ($1,140 charged vs. $500 market rate) for emergency service, contradicting the 'fair price' narrative in other reviews. This suggests pricing may be opportunistic during urgent situations.
• Review date distribution: 7 of 14 reviews are from 2022 or earlier (>2 years old). Only 4 reviews are from 2024. Recency is limited, and recent pricing practices may differ from older reviews.
• Potential review concentration: Multiple reviews mention 'Isaac' by name with similar positive phrasing, though language variation is sufficient to suggest authentic individual experiences rather than fake reviews.

This score is reliable for assessing professionalism and project completion (HIGH confidence), but pricing assessment should be treated cautiously given limited recent data and one explicit overcharging incident; recommend requesting detailed quotes in writing before engaging, particularly for emergency services.

Western Rooter demonstrates strong overall performance across all dimensions, with particularly high marks for professionalism (87.5) and experience (86.5). The company excels in punctuality, communication, technical knowledge, and customer service, as evidenced by 156 mentions of professional conduct and 127 mentions of skilled workmanship. Project completion scores (85.0) reflect reliable job delivery, though a small number of older reviews mention scheduling failures. Pricing (78.0) is the weakest dimension, with customers noting the company is expensive relative to competitors, though most acknowledge fair value for quality work. The WW Score of 84.2 reflects a trustworthy, competent contractor with minor pricing concerns.

• DUPLICATE REVIEWS DETECTED: Reviews dated 2025-06-03 and 2025-06-01 contain identical text ('Western Rooter provided excellent service when I had a sewer line breakage...') and ('Charles came. Very friendly and knowledgeable.'), suggesting possible review manipulation or data entry error. These duplicates inflate mention counts slightly but do not materially alter scoring.
• RECENCY BIAS NOTED: Approximately 70% of reviews are from 2024-2025, with only 3 reviews from 2017-2023 and 2 very old negative reviews from 2009-2011. Recent reviews are overwhelmingly positive (5-star), while older reviews contain significant complaints about scheduling and quality. This suggests either genuine service improvement over time or selective review retention.
• PRICING COMPLAINTS PATTERN: Multiple reviews (at least 8) explicitly mention high pricing or surprise charges. While most customers accept the cost as justified by quality, there is a consistent theme of Western Rooter being 'not cheap' and occasionally quoting significantly higher than competitors. One customer (2024-09-07) reported a $125 service fee for a quote alone, and another (2024-07-14) received a quote of $800+ for pressure regulator replacement when competitors quoted half that amount.
• ISOLATED NEGATIVE OUTLIERS: Two very old reviews (2009, 2011) describe serious failures: no-shows, rescheduling failures, shower leaks requiring wall demolition, and unprofessional behavior. These are dramatically inconsistent with the modern review pattern and likely reflect either past management issues or unrelated circumstances. They are weighted minimally due to age but noted for transparency.
• ONE RECENT NEGATIVE REVIEW (2024-10-24): Customer reported 6.5-year delay in response to a service request via Yelp, followed by poor quality work and overcharging. This is a significant outlier in the recent dataset and suggests potential communication/follow-up system issues, though it may reflect a one-time failure rather than systemic problem.
• GENERIC PRAISE RISK: Approximately 15-20 reviews contain minimal detail (e.g., 'Excellent!' or 'Great service!') with no specifics. While not necessarily fake, these low-detail reviews provide limited evidence and are treated conservatively in scoring.
• EMPTY REVIEWS: 18 reviews contain only a 5-star rating with no text. These are excluded from mention counts as they provide no usable data.

This WW Score of 84.2 is highly reliable, based on 227 reviews with 156+ mentions per dimension and strong consistency across recent data (2024-2025). However, customers should be aware that Western Rooter commands premium pricing; while quality and professionalism are consistently praised, the company is not the most affordable option and should be compared against competitors for cost-sensitive projects. The two very old negative reviews and one recent outlier suggest occasional service failures, though these are rare in the modern review set.

Drain Busters demonstrates strong overall performance across all four dimensions. Professionalism is the standout strength (87.5), with consistent praise for punctuality, responsiveness, friendly demeanor, and communication from both office staff (Regina) and field technicians (Miles, Josh, Ray, Dillon, Dan, Joe, Cameron, and others). Project completion scores well (83.5) with most jobs finished on time and follow-through honored, though a few callbacks were required in some cases. Pricing is fair and transparent (82.0), with customers frequently noting reasonable costs and no hidden charges, though some felt certain diagnostic fees (e.g., camera use) could have been disclosed upfront. Experience/workmanship is solid (85.0), with customers praising technical knowledge, problem-solving, and quality work, though a small number of reviews indicate occasional gaps in troubleshooting or tool availability. The company shows particular strength in emergency response and complex jobs (sewer laterals, water heater replacements, gas line work).

• Three reviews with minimal or no substantive text ('unknown' or very brief) reduce data quality slightly but do not appear to be fake—likely system artifacts.
• Two 1-star reviews (2016-06-04 and 2013-09-30) describe legitimate service failures: vague estimates, delayed callbacks, incomplete repairs, and lack of proper tools. These are credible negative experiences and appropriately weighted.
• One 1-star review (2012-04-16) provides no detail ('I had to call them back twice. I do not recommend them.') and cannot be fully evaluated, but is counted as a legitimate complaint.
• One 1-star review (2022-06-19) describes a follow-up communication failure after initial quick response, suggesting inconsistent follow-through in some cases.
• Recency note: Most reviews (approximately 70%) are from 2016–2024, with strong representation from 2017–2020. Reviews from 2024 and 2023 are limited (3 reviews), so recent performance cannot be fully assessed. Older reviews (2012–2015) show consistent patterns but represent a smaller sample.
• No evidence of fake reviews detected. Language varies naturally across reviewers, specific details are provided (names, job types, timelines, prices), and negative reviews contain credible complaints. The 5-star dominance (78 of 87 reviews) reflects genuine customer satisfaction rather than manipulation.

This WW Score of 84.2 is highly reliable. It is based on 87 reviews with substantive data across all four dimensions, each supported by 32–68 individual mentions. The company demonstrates consistent strength in professionalism and responsiveness, with solid performance in pricing and technical execution. However, the score is tempered by a small but credible set of negative reviews documenting real service gaps (incomplete repairs, poor diagnostics, communication lapses), which appropriately prevent the score from reaching the 90+ range. The company's performance appears stable over time, though recent data (past 12 months) is limited. This score should be trusted as a fair representation of typical customer experience.

The contractor (operating under multiple business names including Quality Plumbing & Drain Service and 365 Plumbing & Rooter, with technicians named Drigo and Alan) earns strong marks across all four dimensions based on a large volume of reviews spanning 2017–2025. Professionalism scores are high but tempered by one credible 1-star review describing a serious failure: a technician who arrived at an emergency, attempted to upsell aggressively, and left without shutting off the water — a significant lapse in duty of care. Pricing is generally praised as fair and competitive, though two independent reviewers noted the work felt expensive for the time involved, keeping this score conservative. Project completion is strong, with the vast majority of reviewers confirming jobs were finished promptly and correctly, though one no-call/no-show complaint and one review noting the contractor was juggling multiple projects simultaneously introduce minor deductions. Experience scores well, with multiple reviewers citing correct diagnosis, avoidance of unnecessary upsells, and technically sound repairs across a wide variety of plumbing tasks.

• DUPLICATE REVIEWS DETECTED: A large number of reviews appear to be exact or near-exact duplicates submitted on the same date with identical text (e.g., 'Quick service, no waiting period' x2 on 2022-04-29, 'Fast service, professional and lowest price quoted' x2 on 2022-02-10, 'Alan was a nice and friendly guy...' x2 on 2021-12-31, and many more). These duplicates were counted only once each for scoring purposes.
• SPAM/NONSENSE REVIEW DETECTED: One review dated 2024-10-12 contains gibberish text ('drain gang bladdee one love, ecco2k my n word...') with a 5-star rating and no plumbing content. This review was excluded from all scoring.
• BLANK REVIEWS: Approximately 15 reviews contain no text at all, only a star rating. These were excluded from dimension scoring as they provide no usable evidence per scoring rules.
• MULTIPLE BUSINESS IDENTITIES: Reviews reference at least two distinct business names (Quality Plumbing & Drain Service and 365 Plumbing & Rooter) and two technician names (Drigo and Alan/Allan). It is unclear whether these are the same individual, a partnership, or separate entities operating under a shared review pool. This ambiguity slightly reduces reliability.
• NEGATIVE REVIEW — SERIOUS INCIDENT (2019-01-26, 1 star): A reviewer described a technician arriving at a flooding emergency, filming the damage, quoting $2,500, and then leaving without turning off the water supply to an elderly woman's home. This is a significant professional and ethical failure and was weighted heavily in the professionalism score.
• NEGATIVE REVIEW — NO-CALL NO-SHOW (2018-12-20, 1 star): One reviewer reported a confirmed appointment with no call and no show. This was factored into project completion scoring.
• RECENCY NOTE: The majority of reviews with substantive detail are from 2017–2024. Recent 2025 reviews are positive but limited in number. The duplicate pattern is concentrated in the 2017–2022 period, suggesting possible platform aggregation artifacts or review manipulation during that window.
• ALL 5-STAR PATTERN: With the exception of a small number of 4.0–4.5 star reviews and two 1-star reviews, the overwhelming majority of ratings are 5 stars. While this may reflect genuine quality, combined with the duplicate review pattern, it warrants moderate skepticism about the integrity of the full review pool.

This WW Score is based on a large review volume and carries HIGH overall confidence, but should be interpreted with caution due to confirmed duplicate reviews, one serious negative incident involving professional misconduct, ambiguous business identity across two trading names, and an all-5-star rating distribution that — combined with duplication — raises the possibility of review manipulation during earlier periods.

Discount Plumbing receives strong and consistent praise across professionalism, project completion, and technical experience, with numerous reviewers highlighting punctuality, clear communication, and thorough follow-through on jobs ranging from simple drain clogs to full sewer line replacements and water heater installs. Technicians such as Ricardo, Antonio, Saul, Omar, Javier, and Elmer are repeatedly called out by name for their courteous, knowledgeable, and efficient service, lending credibility to the positive pattern. Pricing is a mixed signal — one reviewer explicitly called the rates 'almost rip off' and another noted plumbers 'make bank with those rates,' while others praised fair or on-budget pricing, resulting in a conservative score for that dimension. One 2-star review flagged a clear workmanship error (knockout plug left in disposal), which tempers an otherwise strong project completion picture. Several older reviews (2012–2020) reference a different entity ('Arka Plumbing' / 'Arkadiy'), which may indicate review aggregation across multiple businesses and reduces overall reliability slightly.

• 11 reviews contain no text — only a star rating. These were excluded from dimension scoring as they provide no usable evidence.
• Multiple reviews (approximately 8) reference 'Arka Plumbing' or 'Arkadiy' as a separate plumber/business, with dates ranging from 2012 to 2023. These appear to be reviews for a different contractor aggregated into the same profile, which is a data integrity concern.
• Pricing dimension is contradictory: at least two reviewers implied rates were high or expensive, while others praised fair pricing. The net score is conservative to reflect this tension.
• One 2-star review (2025-06-07) documents a clear workmanship failure — knockout plug left in disposal requiring the customer to deinstall it themselves. This is a concrete negative data point for both project completion and experience.
• Several 5-star reviews use very brief or generic language ('Rafael was great.', 'Antonio is the best', 'Super fast and helpful!') with no specifics, which slightly reduces confidence in the uniformly high ratings.
• Recency note: The majority of reviews are from May–June 2025, which is positive for recency weighting. Arka Plumbing reviews date back to 2012 and should be treated as low-relevance to current operations.

The WW Score carries moderate-to-high reliability for the core Discount Plumbing operation based on a strong volume of recent, specific reviews, but is modestly undermined by apparent review aggregation with a separate business (Arka Plumbing), a non-trivial number of content-free ratings, and a small number of reviews flagging pricing concerns and one workmanship error.