The September 2026 Picks Index is live. See who Grok, Meta Muse and Instinct named across 35 cities and 21 trades.
picked by agents

Picked by Agents index · AC and heating repair in Denver, CO

“My furnace won't turn on. Who can fix it this week in Denver, CO?”

We asked Grok 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.

Grok

United States · xAI Grok Bot, a cloud agent with its own browser · asked 2026-09-28 14:09 UTC

  1. searched furnace repair Denver CO
  2. searched same day furnace repair Denver
  3. searched best furnace repair company Denver reviews
  4. searched emergency heating repair Denver 24/7
  5. searched Best Pick Reports Denver heating and cooling 2026
  6. searched BBB accredited furnace repair Denver CO A+
  7. searched ServiceAgent furnace repair Denver
  8. searched Applewood Plumbing Heating Electric Denver furnace repair same day
  9. searched Brothers Plumbing Heating Electric Denver furnace repair
  10. searched site:bbb.org furnace repair Denver CO
  11. searched serviceagent.com Denver heating furnace repair
  12. searched Applewood Plumbing Heating Electric BBB Denver
  13. read 21 pages
    • https://itsdone.com/service-area/denver-furnace-repair/
    • https://www.denversbestheatingandacrepair.com/furnace-repair-denver
    • https://ontimeheatair.com/local/furnace-repair-denver
    • https://www.jdsplumbingservice.com/denver-furnace-repair
    • https://www.ultimateheatingandcooling.com/furnace-repair
    • https://www.bestpickreports.com/air-conditioning-and-heating/denver
    • https://quinnaircolorado.com/
    • https://bestdenverhvac.com/
    • https://sensibleheat.net/
    • https://itsdone.com/heating/emergency-heating-repair/
    • https://ontimeheatair.com/services/emergency-hvac
    • https://milehighheatingandcooling.com/
    • https://dnaheatingandair.com/
    • https://ontimeheatair.com/pricing/furnace-repair-cost
    • https://www.applewoodfixit.com/heating/furnace-installation-repairs/
    • https://www.applewoodfixit.com/
    • https://www.brothersplumbing.com/denver-furnace-repair-replacement/
    • https://heatingandcoolingsolutionsmm.com/
    • https://www.bbb.org/us/co/denver/profile/plumber/applewood-plumbing-heating-electric-1296-2280
    • https://www.trustindex.io/reviews/bestdenverhvac.com
    • https://www.bbb.org/us/co/denver/profile/heating-contractors/ultimate-heating-cooling-plumbing-electric-1296-90013564 (failed: fetch timed out)
Picked

On Time Heat & Air

ontimeheatair.com
“Their Denver furnace and emergency pages state same-day scheduling plus true 24/7 response with no overtime fees, NATE certification, licenses including City & County of Denver, and a displayed 5.0 star rating from 68 verified reviews.”
Shortlisted #2

Applewood Plumbing Heating & Electric

applewoodfixit.com
“Best Pick Reports lists them as a Certified Best Pick at 4.8 with 8,691 reviews, their furnace page says they are open 6 AM to 10 PM seven days with no overtime and same-day service, and BBB shows A+ accreditation since 1992 with 53 years in business.”
Shortlisted #3

Denver's Best Heating and AC Repair

denversbestheatingandacrepair.com
“Their furnace page advertises 24/7 live dispatch and same-day appointments with NATE-certified technicians, a posted residential diagnostic of $79.95 waived with approved repair, Denver metro coverage, and 4.6 stars from 149+ Google reviews.”
Looked at, passed

Done! Plumbing, Heating, Cooling & Electric

itsdone.com
“They claim same-day winter response and around-the-clock dispatch since 1999, but the same pages list limited office hours and the customer stories shown were mostly plumbing rather than furnace work.”
Looked at, passed

Brothers Plumbing, Heating, and Electric

brothersplumbing.com
“They advertise same-day furnace repair seven days a week and appear as a Certified Best Pick at 4.8 with 3,606 reviews, but their opened pages emphasize daytime weekend hours more than midnight 24/7 emergency dispatch.”
Looked at, passed

JD's Plumbing, Heating & Cooling

jdsplumbingservice.com
“They promote same-day and emergency furnace repair with NATE-certified techs, but listed hours show Sunday closed and the business address is Federal Heights rather than central Denver.”
Looked at, passed

Ultimate Heating, Cooling, Plumbing, and Electrical

ultimateheatingandcooling.com
“They list 24/7 service hours, same-day service, and a Denver address with license numbers, but the opened page posted no star rating or review count to compare reputation.”
Looked at, passed

L & L Heating & Air Conditioning

bestdenverhvac.com
“They advertise 24/7 emergency repair and Trustindex shows 4.8 from 701 reviews, but the company HQ is in Parker and one opened review described a multi-day wait rather than same-day heat restoration.”
Looked at, passed

Sensible Heating & Cooling

sensibleheat.net
“They show 4.9 stars from 215 Google reviews with same-day service and NATE techs, but the site emphasizes geothermal and heat-pump work and free-estimate response within two hours on business days.”
Looked at, passed

Quinnair (Premier Home Services)

quinnaircolorado.com
“They are a Denver-address family HVAC firm since 2005 with positive on-page testimonials, but the homepage did not state same-day or 24/7 emergency furnace dispatch for this week.”
Looked at, passed

Mile High Heating & Cooling

milehighheatingandcooling.com
“They claim 24/7 emergency service across Denver metro, but also describe same-week appointments and a $129 after-hours emergency dispatch fee on the opened page.”
Looked at, passed

D&A Heating and Air

dnaheatingandair.com
“They advertise 24/7 Denver-metro HVAC service and 22+ years of experience from Lakewood, but the contact block lists weekday office hours and no aggregate star rating or review count.”
Looked at, passed

M&M HVAC Heating and Cooling Solutions

heatingandcoolingsolutionsmm.com
“They advertise 24/7 emergency and same-day service with a claimed 5.0 Google rating, but the site states only 3+ years serving the metro versus longer-tenured picks.”

How we ran this

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.

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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