Find Nearby Plumbers In Rockville, Maryland

W.A. Wagner & Sons demonstrates consistently strong performance across all dimensions. Professionalism is evidenced by punctuality, courteous communication, responsiveness, and honest dealings across 8 reviews. Project completion is solid with same-day service, timely repairs, and thorough problem-solving mentioned in 7 reviews. Experience is well-documented through references to 30+ years of expertise, technical knowledge, and ability to handle complex jobs like boiler repair and severe clogs in 6 reviews. Pricing receives positive mention in 4 reviews as fair and reasonable, though fewer explicit price discussions limit confidence in this dimension. The company's 100+ year history and independent recognition add credibility.

• All 9 reviews are 5-star or 4-star ratings with no negative feedback; this uniformity is notable but not necessarily indicative of fake reviews given the specific, detailed praise and varied job types mentioned
• Review from 2018-08-15 contains some repetitive phrasing ('W.A. Wagner & Sons' mentioned twice, 'price/service' and 'price and quality' in close proximity) but includes substantial detail and specific references to Checkbook Magazine and 100-year history that suggest authenticity
• Most reviews are older than 12 months (6 of 9 from 2015-2018); only 3 reviews from 2023. Recent data is limited, which may not reflect current service levels
• One review (2011-10-18) mentions 24-hour callback delay, the only minor criticism in the dataset, suggesting some responsiveness variability historically

This WW Score of 88.2 is reliable and trustworthy given HIGH overall confidence, supported by 9 reviews with consistent positive detail across all dimensions; however, the age of most reviews (2015-2018) and lack of recent negative feedback warrant caution—current service may differ from historical performance, and the uniformly positive ratings suggest limited recent market validation.

This contractor demonstrates consistently strong performance across all four dimensions, with professionalism being the most frequently cited strength — punctuality, courtesy, clear communication, and responsiveness appear in the vast majority of substantive reviews. Project completion scores are high, with most reviewers confirming jobs were finished correctly and in a timely manner, though one notable exception involves a technician (Glen) who failed to show up for a scheduled appointment and a separate reviewer who noted the plumber left without cleaning up and made an arguably unnecessary pipe cut. Pricing is viewed favorably across both the Roto-Rooter and Offutt Plumbing reviews, with multiple customers explicitly noting costs were lower than competitor quotes and that the plumber avoided upselling unnecessary services. Experience scores are strong, supported by specific accounts of accurate diagnosis, smart problem-solving, and quality workmanship across a wide range of plumbing tasks. The score is tempered slightly by a small number of negative or mixed reviews and the presence of many blank or near-blank reviews that could not contribute usable data.

• 13 reviews contain no text at all (blank, 'unknown', or a single punctuation mark) and were excluded from dimension scoring — these inflate the raw review count without contributing evidence.
• A cluster of reviews from May–June 2025 heavily feature the technician 'Bilal' with very similar praise patterns (fast, professional, friendly). While individual details vary enough to suggest authenticity, the concentration and uniformity of language warrants mild caution.
• This review set appears to cover TWO distinct businesses: Roto-Rooter (recent 2024–2025 reviews) and Offutt Plumbing (reviews from 2010–2021). Scores reflect the combined pool, but the businesses are operationally separate. The WW Score should be interpreted with this blending in mind.
• One 1-star review (Glen, 2016) explicitly describes a no-show appointment with no prior notice — a serious professionalism failure that was factored into the professionalism score.
• One 1-star review (2012) states 'Poor experience - will not bother with this vendor again' with no further detail — insufficient to score but noted as a negative signal.
• One 3-star review (2013) describes a late arrival, scheduling confusion, and a billing concern — factored into professionalism and pricing scores.
• One 4-star review (2015) describes the plumber leaving without cleaning up and making an unnecessary pipe cut — factored into project completion and experience scores.
• The majority of Offutt Plumbing reviews are older than 3 years (many from 2010–2020), which significantly reduces their recency weight. Recent performance data is dominated by Roto-Rooter technicians.

The WW Score of 87.4 carries HIGH overall confidence due to the large volume of substantive reviews across all four dimensions, but users should note this score blends two distinct service providers and that recency-weighted performance is primarily reflective of Roto-Rooter technicians in 2024–2025.

Gartrell and Sons Plumbing receives consistently strong praise across all four scored dimensions, with professionalism being the most frequently highlighted quality — reviewers repeatedly cite punctuality, friendliness, responsiveness, and courteous communication. Pricing is described as reasonable and competitive across nearly all reviews that mention cost, with no complaints of hidden charges or overpricing. Project completion is well-supported, with multiple reviewers noting repeat use over many years and jobs completed effectively and on budget, including an after-hours emergency response. Experience and workmanship are affirmed through references to complex jobs such as whole-house repiping, gas line installation, and multi-fixture bathroom renovations, with reviewers noting technical knowledge and problem-solving ability.

• Two reviews (dated 2021-06-10 and 2020-11-11) are nearly identical in content and phrasing, describing the same hot water heater emergency and relocation to Ohio. This is a likely duplicate review submitted twice, possibly by the same person on different platforms or dates. One has been counted but the duplicate was excluded from scoring.
• One review (2022-06-10) contains no text — only a 5-star rating. This review was excluded from dimension scoring as it provides no usable data.
• The majority of reviews are older than 12 months, with only two reviews dated within the past 12 months (April 2025 and June 2024). Recent data is limited but consistent with historical patterns.
• All reviews are 5-star ratings with no negative or mixed feedback present. While the reviews contain specific details that reduce fake review suspicion, the complete absence of any critical feedback warrants mild caution.

This WW Score carries HIGH overall confidence due to a substantial volume of detailed, specific reviews across all four dimensions, though the score should be interpreted with mild caution given that all ratings are uniformly 5-star, one duplicate review was detected, and recent review activity is sparse.

Mark Coleman demonstrates exceptional professionalism with consistently punctual arrivals, responsive communication (primarily via email), courteous demeanor, and meticulous attention to detail such as wearing shoe covers. Project completion is strong with jobs finished on time and follow-through on callbacks, though a small number of reviews mention unresolved issues or incomplete diagnoses. Technical expertise is evident across water heater installations, complex plumbing reroutes, and diagnostic problem-solving. Pricing receives moderate support with most reviews describing rates as reasonable or fair, though a notable subset of customers (approximately 25% of pricing mentions) express concerns about costs being high or feeling pressured to purchase parts through the contractor rather than supplying their own.

• One severe negative review (2020-07-25) alleges a fire started at customer's house in September 2016 with significant property damage and insurance complications. This is a critical safety/liability issue that warrants investigation and context.
• Multiple reviews (2017-03-04, 2017-02-03, 2018-09-09, 2018-05-14) indicate customer friction over Mark's policy of only installing parts he purchases himself, with some customers feeling this policy is inflexible and limits their autonomy.
• A few reviews (2018-02-26, 2016-05-31, 2018-07-29) report unresponsiveness or unavailability, contradicting the dominant pattern of responsiveness.
• Two reviews (2018-05-14, 2017-03-04) describe Mark as dismissive or cold when customers questioned pricing or didn't proceed with work, suggesting occasional interpersonal friction under specific circumstances.
• Review dates are heavily concentrated in 2015-2020 range with very few reviews after 2020, limiting recency data for current performance assessment.
• The overwhelming majority of reviews are 5-star ratings (approximately 110 of 125), which is unusually high and may reflect selection bias in review platforms, though the detailed nature of most reviews and specific criticisms in negative reviews suggest genuine feedback rather than fake reviews.

This WW Score of 87.2 is highly reliable for assessing Mark Coleman's typical performance in professionalism, project completion, and technical expertise, supported by 87-98 detailed mentions across these dimensions. However, the pricing score of 78.0 is less robust (32 mentions) and reflects genuine customer disagreement about value; the critical fire incident from 2016 requires independent verification and context before full trust in safety claims. Overall, the score accurately reflects a skilled, responsive, punctual plumber with strong technical abilities, though customers should be aware of his parts-purchasing policy and potential cost concerns.

R.E. Robertson receives consistently strong marks across all four dimensions, with professionalism and experience being the most frequently praised attributes — technicians like Jake, Chris, Matt, and Roderick are repeatedly cited by name for courteous, knowledgeable, and timely service. Pricing is generally viewed as reasonable and fair, though one notable complaint about a $250 backflow test (vs. a $90 market rate) and one review noting an inflated after-hours bill due to inefficiency temper the pricing score modestly. Project completion is strong overall, with same-day and next-day service frequently highlighted, but one significant negative review describes a failure to respond to an emergency in a timely manner for a 20-year loyal customer, and another describes property damage during a job with no accountability taken by management. A small number of professionalism detractors — including a rude receptionist complaint and a driving behavior complaint — prevent a top-tier professionalism score.

• DUPLICATE REVIEWS DETECTED: Multiple reviews appear to be exact duplicates submitted on the same date (e.g., the Jon C/Jacob review on 2025-04-10, the HWH failure review on 2025-02-09, the Walter/Rinardo review on 2025-01-06, the December 2024 review, the November 2024 furnace review, the September 2024 pair, the August 2024 pair, and many of the June 2024 and June 2023 reviews). These appear to be the same reviews submitted twice, likely a data ingestion artifact. Duplicate reviews were counted once each for scoring purposes.
• BLANK REVIEWS: A significant number of reviews (approximately 20+) contain no text — only a star rating. These were excluded from dimensional scoring as they provide no usable evidence per scoring rules.
• OLDER REVIEWS: A meaningful portion of reviews date from 2017–2022 and a few from as far back as 2007 and 2012. These were given reduced weight in scoring. The most recent reviews (2024–2025) are more heavily weighted.
• ONE REVIEW (2024-01-29) criticizes a technician named Chris for reckless driving — this is an off-site behavioral complaint unrelated to plumbing service quality and was noted but given minimal weight in professionalism scoring.
• PROPERTY DAMAGE COMPLAINT (2023): One reviewer reported a damaged flagstone step during an after-hours job and stated management refused to accept responsibility. This was weighted negatively in both project completion and professionalism.
• EMERGENCY RESPONSE FAILURE (2024): A 20-year loyal customer reported being left without water all day during an emergency, with poor communication and no resolution until they called another company. This is a meaningful negative data point for both professionalism and project completion.

This WW Score is based on a substantial number of usable, text-bearing reviews spanning multiple years, with strong mention counts across all four dimensions; however, the presence of numerous duplicate entries and blank reviews required careful deduplication, and the score should be treated as reliable but not definitive — the handful of serious negative experiences (emergency non-response, property damage denial, rude staff) are real signals that prevent a higher confidence rating on professionalism and project completion.

Eire Plumbing (Rob Clem) demonstrates strong overall performance with a WW Score of 82.1. Professionalism is a clear strength (87.5), with extensive evidence of punctuality, responsiveness, clear communication, and courteous demeanor across 98 reviews. Project completion is solid (85.2) with consistent reports of finished work and follow-through. Technical experience is well-documented (86.8) with customers praising skill, problem-solving, and quality workmanship. However, pricing emerges as a notable weakness (71.3), with multiple complaints about unexpected cost escalations, lack of itemized invoices, and perceived overcharging relative to work performed. This pricing concern, while mentioned in only 28 reviews, significantly impacts overall trustworthiness.

• PRICING INCONSISTENCY: Four distinct negative reviews (2023-11-15, 2019-10-09 x2, 2017-04-01) report significant billing disputes—charges doubling quoted amounts, lack of itemized breakdowns, and perceived overcharging. Rob's stated practice of not providing labor/parts breakdowns is problematic and appears intentional.
• PATTERN OF COUPON EXPLOITATION: Multiple reviews (2015, 2018, 2019) mention purchasing discounted Angie's List deals ($99 coupons) that resulted in final bills of $800-$875+, suggesting a potential bait-and-switch pattern.
• INVOICE TRANSPARENCY: Several customers report Rob refuses to break down labor vs. parts costs, which is a red flag for pricing accountability and customer trust.
• RECENCY BIAS: Most reviews are from 2015-2019 (older than 3 years). Only 2 reviews from 2022-2023 are present. The most recent negative pricing review is from November 2023, suggesting the issue persists.
• MINOR FAKE REVIEW RISK: While most reviews appear genuine with specific details, some 5-star reviews are extremely brief and generic (e.g., 'Perfect!' 'Excellent.' 'Great.'). However, the majority contain sufficient specificity to be credible.
• PROFESSIONALISM CAVEAT: One 2017 review notes Rob 'was not very nice or grateful and wouldn't accept cash,' suggesting occasional interpersonal inconsistency, though this is isolated.

This WW Score of 82.1 is reliable for assessing professionalism, completion, and technical skill (all HIGH confidence), but the pricing dimension (MODERATE confidence, only 28 mentions) masks a serious and recurring concern: customers report systematic billing practices that lack transparency and frequently result in sticker shock. The score should be interpreted as: 'Excellent tradesman with strong work quality, but significant pricing risk and accountability issues.' Prospective customers should obtain detailed, itemized written estimates and require a binding price agreement before work begins.