Find Nearby Plumbers In San Rafael, California

Mason Plumbing demonstrates strong overall performance across all dimensions, with particular strength in professionalism (86.5) driven by consistent praise for punctuality, communication, and courteous staff across 89 reviews. Project completion scores solidly at 84.0 based on 68 mentions of timely, thorough work and follow-through. Experience is well-supported at 81.5 from 52 mentions of skilled workmanship and problem-solving. Pricing is the weakest dimension at 79.0, with 32 mentions revealing mixed feedback—many customers praise fair pricing, but several negative reviews cite overcharging, inflated labor costs, and aggressive upselling tactics. The company shows strong consistency in service quality but has documented pricing disputes that warrant caution.

• PRICING CONCERNS: Multiple reviews (2021-09-02, 2015-08-02, 2016-12-05) allege overcharging, inflated labor rates, and aggressive upselling. One customer reported $484.50 for a $50 part plus excessive labor; another paid $150/hour for a 10-minute job with sales pitch. These are not isolated complaints.
• COMMUNICATION FAILURES: Several older reviews (2014-12-22, 2014-12-01, 2014-04-30, 2015-05-27) document no-shows, missed callbacks, and broken promises regarding appointment times. While frequency appears lower in recent years, pattern suggests systemic scheduling/communication issues at certain periods.
• INCOMPLETE WORK: Review from 2016-12-05 documents incomplete hydronic system installation requiring third-party correction; review from 2017-09-22 reports unsuccessful sewer clearing after 6 man-hours with no resolution and disputed billing.
• CUSTOMER SERVICE INCONSISTENCY: Reviews from 2015-07-08 and 2016-09-14 cite 'cranky' phone staff and unprofessional driver behavior (honking, yelling, tailgating), suggesting inconsistent customer-facing culture despite owner's professionalism.
• RECENCY BIAS: Most negative reviews cluster in 2014-2017 period; recent reviews (2024-2025) are overwhelmingly positive (5-star). This suggests either significant operational improvement or potential selection bias in recent review pool.
• REVIEW QUALITY: One review (2016-05-12) is nearly incoherent ('Gotten here quicker...'); three reviews contain only ratings with no text. These do not materially affect scoring but indicate some data quality variance.

This WW Score of 82.1 is reliable for recent service expectations (2024-2025 reviews show consistent 5-star quality), but customers should be aware of documented pricing disputes and communication failures in the 2014-2017 period; current pricing practices warrant explicit quote verification before work begins.

Marin H2O demonstrates strong overall performance with particular strengths in professionalism (86.5) and technical experience (87.0), supported by extensive evidence across 68 and 45 reviews respectively. Project completion scores solidly at 84.0 across 52 mentions, reflecting consistent on-time delivery and follow-through. Pricing is the weakest dimension at 72.0, with several reviews citing unexpected cost overruns, lack of transparent communication about additional charges, and concerns about being quoted low to win jobs. The company excels at emergency response, staff knowledge, and customer service, but pricing transparency and cost management remain areas of concern.

• PRICING CONCERNS: Multiple reviews (2019-01-04, 2019-06-23, 2015-09-30) report unexpected cost increases, hidden charges, or feeling overcharged. One review noted final bill was 20% over quote without advance notice. Another reported $935 for a simple under-sink filter installation with two leaks.
• COMMUNICATION FAILURES: Two 1-star reviews (2021-07-01, 2024-03-11) cite poor communication—no-shows without notification, failure to update customers on scheduling delays, and lack of responsiveness to follow-up calls.
• INCONSISTENT SERVICE QUALITY: A few reviews mention issues with initial diagnosis (2024-03-11 storm drain misdiagnosis) and incomplete first-visit repairs requiring callbacks (2015-04-10).
• EMPTY REVIEWS: 8 reviews contain only ratings (5.0 or 4.0) with no text, reducing data quality slightly but not affecting scoring as they provide no dimension-specific evidence.
• RECENCY BIAS NOTED: Most recent reviews (2025) are uniformly 5-star with detailed praise. Older reviews (2008-2015) show more critical feedback. This pattern warrants caution—recent reviews may reflect improved operations or selection bias.
• STAFF VARIABILITY: Performance appears highly dependent on individual technician (Ken, Kevin, Jake, Rick praised; one Ken criticized for misdiagnosis). This suggests inconsistent quality control.

This WW Score of 82.1 is reliable with HIGH overall confidence, supported by 100 reviews with substantial evidence across all dimensions. However, the pricing dimension (MODERATE confidence, 12 mentions) is notably weaker and should be weighted carefully in decision-making. The company excels at emergency response, technical skill, and professionalism but has documented issues with cost transparency and occasional communication lapses. Recent reviews are more uniformly positive than historical data, suggesting either genuine improvement or potential selection bias in recent feedback.

Thomas Plumbing demonstrates strong professionalism with consistent praise for friendly, courteous technicians who communicate well and arrive on schedule. Experience and technical skill are well-documented across multiple reviews highlighting problem-solving ability and quality workmanship. Pricing is perceived as fair and reasonable, though fewer reviews explicitly address cost. Project completion is solid overall, though one significant negative review details a failed repair that was made worse, incomplete follow-through on refunds, and unprofessional owner conduct. This single critical incident substantially impacts the completion score despite the majority of reviews reporting successful, timely work.

• One severely negative review (1-star, dated 2025-05-26) describes failed repair work, worsened damage, non-refunded charges, and aggressive owner behavior. This is a credible, detailed complaint with specific dollar amounts and timeline that contradicts the overwhelmingly positive pattern.
• Multiple empty reviews (no text, 5-star rating) present across dataset—at least 6 instances. These provide no usable data and suggest possible review manipulation or incomplete submissions.
• Older reviews (2011-2016) are heavily skewed toward 'Frank' as the primary technician. Recent reviews (2025) mention multiple technicians (Josh, Dylan, Chris, Thomas). Unclear if this represents business transition, expansion, or different service quality across team members.
• One review (dated 2025-04-10) is 4-star but notes scheduling communication failure (early arrival without notice), suggesting professionalism gaps in dispatch coordination despite positive field work.
• Limerick-format review (2025-05-26) is creative but provides minimal substantive detail; included in professionalism/completion counts but carries limited evidentiary weight.

This score should be treated with moderate-to-high caution. While the majority of recent reviews (2025) are consistently positive and detailed, the presence of one credible, severe negative review describing both service failure and owner misconduct, combined with multiple empty/incomplete reviews and apparent business transition, suggests the company has inconsistent quality or reliability issues that may not be fully captured by the aggregate score. The WW Score of 82.1 reflects strong baseline performance undermined by documented failures in execution and customer service recovery.

Grier Argall Plumbing demonstrates strong technical expertise and professionalism, with consistent praise for diagnostic skills, responsiveness, and courteous behavior across 27 reviews. Project completion is reliable with multiple mentions of timely work and follow-through. However, pricing presents a significant concern: while many reviews praise fair pricing, the June 2024 property management review documents estimates substantially higher than market comparables ($10,890 vs. $5,900 for similar work), combined with poor communication on pricing clarification. A 2017 review also flagged unexpected travel time and equipment rental charges. The company excels in technical problem-solving and customer service but has pricing transparency and consistency issues that warrant caution.

• PRICING INCONSISTENCY: June 2024 review documents estimates 84% higher than licensed competitors for identical work ($10,890 vs. $5,900 for 50-gallon installation). Property manager with 40 years experience found pricing significantly out of market.
• COMMUNICATION FAILURE: June 2024 reviewer explicitly noted lack of return phone call for pricing clarification—contradicts otherwise strong professionalism scores.
• HIDDEN CHARGES: February 2017 review reports unexpected travel time charges ($135/hour) and equipment rental fees disclosed only after invoice written, suggesting lack of upfront transparency.
• APPOINTMENT NO-SHOW: September 2016 review documents three consecutive missed appointments with no-call, no-show pattern despite 100% confirmation claim.
• RECENCY BIAS: 22 of 27 reviews are from 2011-2016 (older than 8 years). Only 5 reviews from 2020 onward. Most recent negative pricing review is June 2024, suggesting potential recent pricing escalation not reflected in older positive reviews.
• REVIEW AGE CONCERN: Majority of glowing reviews predate 2017. Recent reviews (2024, 2017) contain substantive complaints about pricing and communication that older reviews do not mention.

This WW Score of 82.1 should be treated with CAUTION despite HIGH overall confidence. While technical expertise and professionalism are well-documented across many reviews, the June 2024 pricing complaint from a professional property manager, combined with older hidden-charge and no-show incidents, suggests the company may have pricing consistency and communication issues that are not fully captured by the older positive reviews dominating the dataset. Prospective customers should request detailed, itemized quotes with explicit inclusion/exclusion of travel time, equipment fees, and permit costs before engaging.

Tarantino Plumbing demonstrates strong overall performance with particular strengths in technical expertise and experience (88/100), supported by consistent praise for problem-solving ability and quality workmanship across 15 reviews. Professionalism scores well at 84/100 based on 18 mentions highlighting punctuality, communication, and customer service, though three negative reviews cite missed appointments and lack of follow-up callbacks. Project completion (79/100) shows the most variability—while most jobs are completed successfully, two reviews explicitly mention incomplete work and lack of follow-through on callbacks. Pricing is fair and competitive (78/100) with multiple reviews praising value, though one customer felt overcharged for a quick service call. The company's long-term customer relationships and repeat business indicate sustained reliability despite occasional service lapses.

• Three negative reviews (2019, 2015, 2014) cite serious professionalism issues: missed appointments without callback, incomplete work with no follow-up, and overcharging for minimal service. These are not isolated complaints but represent a pattern of accountability gaps.
• Most reviews are older than 3 years (19 of 26 reviews predate 2020). Only 3 reviews from 2021-2022 provide recent performance data. Recent track record is limited.
• No fake review indicators detected. Reviews contain specific details, varied language, and include both positive and negative experiences with concrete examples.

This score should be treated with moderate-to-high confidence for overall quality assessment, but the pattern of professionalism lapses in callback and follow-up (despite strong technical skills) suggests customers should establish clear communication protocols upfront and confirm appointment confirmations. The age of most reviews limits confidence in current operational standards.

Denny's House of Plumbing demonstrates strong overall performance across all measured dimensions. Professionalism is consistently praised with 13 mentions highlighting responsiveness, courtesy, and punctuality, though two negative reviews cite rudeness and poor attitude. Experience is a clear strength with 11 mentions emphasizing technical knowledge, quality workmanship, and problem-solving ability. Project completion is solid with 10 mentions of timely work and follow-through, though one significant 2011 review details incomplete work and unresolved issues. Pricing receives moderate support with 7 mentions; while most reviews praise fair pricing and value, two older reviews cite high charges ($120 permit fee, $2,600 installation with subsequent $120 service charge). The company's long operational history and repeat customer base provide credibility, though older negative reviews raise concerns about consistency.

• Two negative reviews from 2009 and 2011 (both 8+ years old) cite poor attitude, rudeness, and incomplete work. These are significantly older than the predominantly positive reviews from 2016 onward, suggesting possible service quality improvement over time or inconsistent performance.
• The 2011 review describes a major project failure (dishwasher installation with leaking and water damage) that was not fully resolved, contradicting the strong project completion narrative from more recent reviews.
• Positive reviews are heavily concentrated in 2019-2022 period; only 2 reviews from 2016 or earlier are positive, while 2 negative reviews are from 2009-2011. Recency bias may inflate current score.
• No fake review patterns detected. Reviews contain specific details, varied language, and legitimate complaints in negative reviews, indicating authentic feedback.

This WW Score of 82.1 is moderately reliable for current service expectations, as it is heavily weighted toward recent positive reviews (2016-2022), but should be interpreted with caution regarding project completion due to one documented major failure in 2011 that was never fully resolved. The company appears to have improved significantly over the past 8 years, but potential customers should be aware of the historical service inconsistency.