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

Who an AI assistant picked for HVAC in St Albans, uk

Across the six questions, Herts Boilers was picked in 4 and first in 4; HeatCo was picked in 4 and first in 2. Alban City Plumbing & Heating Ltd was picked in 2, Hamiltons PHB in 2, and NC Gas Services was considered but not picked.

Who came up in St Albans

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

CompanyPicked firstPicked
Herts Boilershertsboilers.co.uk4 of 64 of 6
HeatCoheatco.org.uk2 of 64 of 6
Alban City Plumbing & Heating Ltdalbancity.co.uk0 of 62 of 6
Hamiltons PHBhamiltonsphb.com0 of 62 of 6

Question 1 of 6

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

Picked

  1. First
    Herts Boilers
    “It serves St Albans and explicitly says it aims for same-day repair and charges no weekday callout or diagnostic fee during working hours.”
  2. #2
    HeatCo
    “It has a St Albans base, a broken-boiler booking option and more than 20 years serving the area.”

Considered and passed

  • Passed
    Alban City Plumbing & Heating Ltd
    “Its boiler repair page describes diagnosis and repairs but does not promise a same-day appointment.”
  • Passed
    NC Gas Services
    “It offers boiler repairs and emergency help, but its stated rapid attendance is for emergency plumbing rather than boiler breakdowns.”

Question 2 of 6

“Who's the best heating engineer in St Albans?”

Picked

  1. First
    Herts Boilers
    “Its site reports 180 Google reviews with a 4.9-star score and says the local service has operated since 2011.”
  2. #2
    HeatCo
    “It is a Which? Trusted Trader with more than 230 five-star reviews according to its site and names its owner on its about page.”

Considered and passed

  • Passed
    Alban City Plumbing & Heating Ltd
    “It advertises 459 five-star reviews and manufacturer accreditations, but the result does not establish that it is better than the shortlisted companies.”
  • Passed
    NC Gas Services
    “It presents Gas Safe credentials and a five-star public listing rating, but its site gives less review detail than the shortlist.”

Question 3 of 6

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

Picked

  1. First
    HeatCo
    “It installs Worcester Bosch and Baxi boilers, offers free consultations and itemised quotes, and provides an online boiler quote request.”
  2. #2
    Alban City Plumbing & Heating Ltd
    “It offers boiler installation by Gas Safe engineers and says its manufacturer accreditations can provide extended warranties on selected boilers.”

Considered and passed

  • Passed
    Herts Boilers
    “Its site says it specialises in repairs and rarely recommends replacement, so I’d prioritise companies presenting dedicated installation options for a new-boiler quote.”
  • Passed
    NC Gas Services
    “It has a boiler replacement page, but the reviewed homepage provides less detail about installation accreditation and quote options.”

Question 4 of 6

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

Picked

  1. First
    Herts Boilers
    “It explicitly commits to same-day boiler repairs when parts are available before 3pm and serves St Albans.”
  2. #2
    Hamiltons PHB
    “It advertises same-day boiler repairs and emergency callouts across St Albans and Hertfordshire.”

Considered and passed

  • Passed
    HeatCo
    “It has a broken-boiler booking option but its site does not state that it can attend today.”
  • Passed
    NC Gas Services
    “Its emergency attendance language concerns plumbing and gas safety, not a specific same-day boiler repair commitment.”

Question 5 of 6

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

Picked

  1. First
    HeatCo
    “It provides direct online booking links for standard and extended boiler services and says booking is available 24/7.”
  2. #2
    Alban City Plumbing & Heating Ltd
    “It offers annual boiler servicing in St Albans, although the reviewed pages did not show a direct online booking system.”

Considered and passed

  • Passed
    Herts Boilers
    “Its site explains repair and service work but directs customers to contact the company rather than offering a clear online service booking link.”
  • Passed
    NC Gas Services
    “It advertises boiler servicing but the reviewed page gives call and email contact options rather than online booking.”

Question 6 of 6

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

Picked

  1. First
    Herts Boilers
    “It describes job-based repair pricing and says major charges should be discussed in advance where possible.”
  2. #2
    Hamiltons PHB
    “It advertises transparent pricing with no hidden fees and says customers will know the cost upfront.”

Considered and passed

  • Passed
    Alban City Plumbing & Heating Ltd
    “Its homepage mentions transparent pricing for powerflushing, but the boiler repair page does not show fixed repair prices.”
  • Passed
    HeatCo
    “Its about page promises itemised quotes for installations, but I did not find fixed prices for boiler repairs.”

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