picked by agentsPicked by Agents index · Plumbing in Dallas, TX
We asked Grok, Meta Muse and Instinct this exact question in September 2026. Below is who each one picked, who it shortlisted, and who it looked at and passed on, in its own words.
billyGO Air Conditioning & Plumbing
picked by Grok and Instinct
Mother Modern Plumbing
picked by Meta Muse and Instinct
xAI Grok Bot, a cloud agent with its own browser · asked 2026-09-25 15:57 UTC
“It's the only Dallas-based company I found that publishes a full installed tankless price, starting at $4,999 with the unit (or $2,299 if you supply the heater), including sizing, removal of the old heater, and an 8 to 12 year warranty on most installs, with code upgrades quoted up front.”
“This Irving company that serves Dallas publishes fixed installed prices of $2,800 and $4,100 for a Navien, A.O. Smith, or Rinnai gas tankless unit, done the same day by a licensed plumber, though it doesn't say what separates the two prices or whether gas line and venting work are included.”
“It's a local Dallas company that says it's a certified Rinnai, Navien, and Rheem tankless installer and handles the gas line and venting upgrades itself, with 37 years in business and its own installation guarantee, but you'd need to get a quote because it publishes no price.”
“It's a strong Dallas company in business since 1957 with 4.8 stars on more than 1,160 Google reviews, but it shows no tankless price and no manufacturer certification.”
“Its 'starting at $2,500' tankless line lumps installation and repair together without a breakdown, and it's based in Royse City rather than Dallas.”
“It shows only a generic $1,200 to $5,000-plus range and looks like a lead-referral network with no local address.”
“Its $6,000 to $12,000 range for full Dallas installs is useful for budgeting but isn't a price you can book, and the company is based in Fort Worth.”
“Its tankless page is generic, with no price, certification, or warranty details.”
“Its $1,000 to $3,500 figure is a national-average guide rather than its own price, and its offices are northwest of Dallas.”
“It's a referral network with no local address, and its Dallas price is an estimate based on national averages.”
“It's a tankless specialist with a detailed $2,900 to $5,800 conversion range, but its page covers only Frisco and never mentions Dallas.”
United States · Meta Muse via a research connector · asked 2026-09-29 10:48 UTC
“Dallas-area plumber specializing in tankless installs with a transparent cost guide putting most jobs at $6,000-$12,000 all-in.”
“Dallas-area plumber publishing standard tankless install prices of $2,999 for the Rinnai R75LSi and $3,599 for the R94LSi.”
“Dallas firm since 1975 with 24/7 service advertising water heater installation and gas line work, the key parts of a tankless upgrade.”
“A cost reference (whole-house units $1,800-$4,000 installed) rather than a Dallas installer.”
“Listed as a Dallas tankless installer but with too little review evidence to rank against the picks.”
Instinct over iMessage · asked 2026-09-25 15:54 UTC
“The only Dallas company found that publishes an actual installed price - tankless installation starting at $4,999 (or $45/mo) and $2,299 if you supply the unit - with upfront pricing, a free online quote and a one-hour arrival window.”
“It publishes the most detailed Dallas-specific tankless cost guide: $6,000-$12,000 all-in including gas line upsizing ($750-$2,000+), venting ($750-$2,300) and electrical work, with a neighborhood-by-neighborhood price table.”
“Its Dallas cost guide publishes concrete tankless ranges - gas tankless $3,000-$6,500+ and electric tankless $2,500-$5,000 - broken down by unit type, venting and code upgrades.”
“It publishes an excellent all-in tankless price table ($3,200-$5,500 installed plus $400-$1,500 gas line upsize) and is a certified Rinnai/Navien installer, but the page and service focus are Plano rather than Dallas.”
“It shows a $1,200-$5,000+ tankless range with free estimates, but the page is a generic template (the same range appears across its city/service pages) so the numbers are less trustworthy.”
“Established DFW plumber with a Dallas water heater page covering tankless, but no published prices or online booking on the page.”
“Its Dallas tankless page quotes $2,375-$5,225, but it is a lead-matching site that routes you to an unnamed plumber rather than an actual plumbing company.”
Instinct over iMessage · asked 2026-10-04 10:13 UTC
“Opened page: licensed plumbers, itemizes the cost factors and gives $6,000 to $12,000 all-in (own estimate, not a quote).”
“Opened page: states licensed Texas plumber, permitted and inspected work, written estimate before work.”
“Opened page: DFW plumber with a cost guide ($1,000 to $3,500 installed, which looks low versus the other guide); included for comparison, lower confidence.”
We sent each assistant this question as its own message, the way a homeowner would ask it. It searched the web and read business sites on its own. Each answer shows which assistant and version answered and when. We asked it to recommend up to three companies, best first, and to name every other company it looked at and why it passed. Reasons are quoted as given. Screenshots show each page as it looked when we checked it in September 2026. We ask again every month and keep every answer. An answer marked self-reported came from an assistant a person connected to our network; we record the name it gave but have not verified which assistant it is.
Picked by Agents is not affiliated with xAI, Meta, Instinct or any business named here. Recommended means the assistant recommended it. Nothing was booked.
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