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HVAC city tests · UK · one AI assistant's answers, September 2026

Who an AI assistant picked for HVAC in Carmarthen, uk

Wayne Edwards Plumbing & Gas Ltd was picked 4 times and ranked first 3 times; M.J. Harris Boilers & Gas Carmarthen was picked 5 times and ranked first 2 times.

Who came up in Carmarthen

Every company the assistant named across the six questions, ordered by how often it was picked first. Tested on 2026-09-29.

CompanyPicked firstPicked
Wayne Edwards Plumbing & Gas Ltdwayne-edwards.co.uk3 of 64 of 6
M.J. Harris Boilers & Gas Carmarthenmjharrislocalrepairs.co.uk2 of 66 of 6
Checkatrade Expresscheckatrade.com1 of 62 of 6
Lewis Heating & Boiler Serviceslewis-heating.com0 of 64 of 6
Oil4Walesoil4wales.co.uk0 of 61 of 6

Question 1 of 6

“My boiler's stopped working. Who can fix it this week in Carmarthen?”

Picked

  1. First
    Wayne Edwards Plumbing & Gas Ltd
    “Its Carmarthen repair page explicitly offers 24/7 emergency repairs and same-day callouts.”
  2. #2
    M.J. Harris Boilers & Gas Carmarthen
    “It advertises boiler repairs by local Gas Safe and OFTEC registered engineers and fixed-price quotes.”
  3. #3
    Lewis Heating & Boiler Services
    “Its site lists boiler breakdowns and says it serves Carmarthen and surrounding areas.”

Considered and passed

Question 2 of 6

“Who's the best heating engineer in Carmarthen?”

Picked

  1. First
    Wayne Edwards Plumbing & Gas Ltd
    “Its local service page gives specific experience, registration, coverage and emergency service information.”
  2. #2
    M.J. Harris Boilers & Gas Carmarthen
    “It describes a family-run local business with Gas Safe and OFTEC registered engineers and fixed-price quotes.”
  3. #3
    Lewis Heating & Boiler Services
    “It describes over 10 years established in Carmarthenshire and lists gas, oil and LPG heating services.”

Considered and passed

  • Passed
    D Davies Plumbing & Heating Ltd
    “A directory lists boiler repairs, installations and renewable energy services, but I did not verify those details on the company's own site.”
  • Passed
    A Perry Plumbing and Heating
    “A directory has positive local reviews, but I could not verify service details on a company-owned page.”

Question 3 of 6

“I need a new boiler fitted in Carmarthen. Who should I get quotes from, and roughly what will it cost?”

Picked

  1. First
    M.J. Harris Boilers & Gas Carmarthen
    “It offers gas, LPG and oil boiler installations and says it provides fixed-price quotes.”
  2. #2
    Lewis Heating & Boiler Services
    “It lists boiler installation and says it provides free, no-obligation boiler quotations.”
  3. #3
    Wayne Edwards Plumbing & Gas Ltd
    “Its Carmarthen service page links to a new boiler installation service and offers a free estimate.”

Considered and passed

  • Passed
    Boiler Boyz
    “Its Carmarthen installation page advertises fixed-price boiler installation, but I could not access the page to verify its details.”

Question 4 of 6

“No heating or hot water, can someone come out today? I'm in Carmarthen”

Picked

  1. First
    Wayne Edwards Plumbing & Gas Ltd
    “It explicitly advertises 24/7 emergency repair and same-day callouts in Carmarthen.”
  2. #2
    M.J. Harris Boilers & Gas Carmarthen
    “It offers boiler repairs in Carmarthen through its own local registered engineers.”
  3. #3
    Oil4Wales
    “It lists dedicated emergency contacts for oil heating boiler breakdowns and identifies Carmarthen as its headquarters.”

Considered and passed

Question 5 of 6

“I want my boiler serviced before winter in Carmarthen. Who can I book online?”

Picked

  1. First
    Checkatrade Express
    “Its Carmarthen service listing shows online booking for a boiler service at £99.”
  2. #2
    M.J. Harris Boilers & Gas Carmarthen
    “It offers annual boiler servicing by local Gas Safe and OFTEC engineers.”
  3. #3
    Lewis Heating & Boiler Services
    “It lists boiler servicing and directs customers to contact the company for a quote.”

Considered and passed

Question 6 of 6

“Which heating engineer in Carmarthen shows fixed prices, so I know the cost upfront?”

Picked

  1. First
    M.J. Harris Boilers & Gas Carmarthen
    “It explicitly says customers receive a fixed-price quote for boiler work.”
  2. #2
    Checkatrade Express
    “It displays fixed prices for bookable boiler servicing and gas safety certificates.”

Considered and passed

  • Passed
    Boiler Boyz
    “Its search listing claims fixed-price boiler installation, but the page was inaccessible when I tried to read it.”
  • Passed
    Lewis Heating & Boiler Services
    “It offers free quotations, but the pages I read did not show fixed prices.”

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