How AI assistants choose who to recommend for furnace repair

1. What people actually asked
2. What your furnace repair page has to explain
3. What the assistants looked for before recommending anyone
4. Your furnace repair page checklist
5. Questions owners ask
6. How we got these numbers
7. See it on your own website

What people actually asked

We asked for furnace repair in three different ways. Here is each one, word for word, with how many of the 292 answers it produced between September 7 and October 14, 2026:

• “Who should I call for furnace repair in Clearwater, FL 33755?”110 answers
• “I need furnace repair today — I'm in Pinellas Park, FL 33781. Who can actually come out?”96 answers, asked with five different timings: today, first thing tomorrow, tomorrow morning, tonight and within the next few hours
• “Furnace repair near me — I'm in Largo, FL 33770. Who do you recommend?”86 answers

Together, the 292 answers covered eight towns in Pinellas County: Dunedin, Largo, Pinellas Park, Seminole, St. Petersburg, Clearwater, Tarpon Springs and Palm Harbor. Each town came up in 35 to 37 answers. By assistant: ChatGPT 119, Claude 101 and Google AI Mode 72.

Customers also call it “heating repair”, “heater repair”, “gas furnace repair” or “no heat repair”, so use those words on the page as well.

The question underneath all of them

“Do you repair my type of furnace, and what happens at the first visit?” The equipment type and reported fault matter more than a broad promise to fix every heating system.

What your furnace repair page has to explain

In this area many HVAC companies focus on air conditioning. Assistants often found a company that listed furnace repair but whose page was mostly about AC. Several told customers to ask whether the company really does heating, and whether its round-the-clock offer covers heating calls. A page that names the heating equipment the company repairs removes that doubt.

Answers kept pointing out that a "furnace" can mean different systems. Many homes here run a heat pump or electric heat strips, not a gas furnace. Assistants told customers to say what system they have and ask whether the company services it, sometimes down to the brand. The page should list the equipment and fuel types the company works on, and the ones it does not.

Gas came up often in these answers. Many told customers who smell gas to leave the home and call the gas utility before calling a contractor. Some also told customers to ask whether the technician checks for carbon monoxide. A page can explain which heating problems the company handles on a repair visit, and which ones belong to the gas utility first.

What the assistants looked for before recommending anyone

We read all 292 answers to see what the assistants looked for before naming a company for furnace repair, what they told the customer to ask, and what they said they couldn’t find.

What the assistants told customers to ask

Most common first:

What does the first visit cost?

Most answers told customers to ask for the diagnostic or service-call fee before booking. Many added that customers should ask whether the fee is credited toward the repair. Assistants rarely found the fee on a company's page.

42% of the answers (123 of 292) brought this up.

Ask for the diagnostic or service-call fee up front, and whether it's credited toward the repair.

Does the company repair this kind of heating?

Assistants told customers to ask whether the company services their exact system: a gas furnace, an electric furnace or a heat pump. Because many local companies focus on cooling, a broad promise to fix heating did not settle the question.

32% of the answers (94 of 292) brought this up.

Ask whether they service your type of heating: gas furnace, electric heat, or heat pump.

What happens if the customer smells gas?

Many answers told customers who smell gas to leave the home and call the gas utility first. Some told customers to ask whether the technician checks for carbon monoxide or heat exchanger problems during a repair.

22% of the answers (64 of 292) brought this up.

Ask for the diagnostic fee, total repair price, warranty, and whether they’ll check for carbon monoxide or heat-exchanger issues.

When can a technician arrive?

Assistants could not see any schedule, so they told customers to ask for a confirmed arrival window or the first appointment of the day. Many treated advertised same-day service as a claim to check on the phone.

15% of the answers (44 of 292) brought this up.

Ask for the first appointment of the day and whether there's a diagnostic or after-hours fee.

Is there an extra charge after hours?

Customers with no heat often called at night or on weekends. Assistants told them to ask for the total cost up front, including any after-hours or emergency fee. Some found offers with no extra fee that were worded only for AC calls.

10% of the answers (30 of 292) brought this up.

Ask for the total cost up front, including the after-hours or trip fee, before you agree to a visit.

Is the repair priced in writing before work starts?

Assistants told customers to get the diagnosis and repair price in writing before approving work. Some said to be careful if anyone suggests replacing the whole system before giving a repair quote.

9% of the answers (27 of 292) brought this up.

Ask for a written diagnosis and estimate before approving major work, especially if anyone suggests replacing the whole system.

What the assistants couldn’t find

In 46 of the 292 answers, the assistant said it couldn’t find or confirm something it needed about a company. By assistant: Claude in 40 of its 101, ChatGPT in 6 of its 119 and Google AI Mode in 0 of its 72. As we asked it, Claude usually says what it couldn’t confirm; ChatGPT and Google AI Mode seldom do, so these counts mostly show what Claude couldn’t find. Most often:

• A phone number or other way to reach the company: 21 answers
• When the company could do the work: 18 answers
• Reviews it could check: 4 answers
• A price or how the job is priced: 4 answers
• A license or insurance it could check: 3 answers

Assistants most often could not confirm that anyone could come today or first thing tomorrow, and often found no phone number. A page with a working number and a clear way to book a heating visit answers what they kept telling customers to call about.

I couldn't confirm that any company can come out today.

Where the assistants sent people

Each answer linked to the pages the assistant relied on. Of the 220 ChatGPT and Claude answers about furnace repair, this is how many linked at least once to each kind of site:

• A contractor’s own website: 98% (216 answers)
• A directory or review site such as Yelp, Angi or the BBB: 45% (99 answers)
• A manufacturer or home-improvement guide: 23% (51 answers)
• An official license lookup: 2% (5 answers)
• A Google search or Maps page: under 1% (1 answer)

A contractor’s own website was the page linked most often, so your site is usually what the customer is sent to read.

Google AI Mode works differently. In 72% of its 72 answers, the links opened Google’s own listing for a business rather than a website. There, your Google Business Profile is the page the customer sees, so it needs the same facts as your site.

The checks behind every recommendation, applied to furnace repair

Can the customer reach a person?

Phone numbers were often missing. Some answers left numbers out because they could not match them to the local business, and sent customers to company pages instead.

21 of the 292 answers about furnace repair, 21 of them from Claude, said the assistant couldn’t confirm this. In our July–August study across eight trades, it cost a business its place in 147 of the 290 conversations where it came up.

Can you schedule the job when the customer needs it?

Availability was what assistants most often could not confirm for this job. Customers wanted someone today or first thing tomorrow, and no answer could see a free slot.

18 of the 292 answers about furnace repair, 15 of them from Claude, said the assistant couldn’t confirm this. In our July–August study across eight trades, it cost a business its place in 185 of the 657 conversations where it came up.

What do recent customers say?

Assistants often could not verify reviews and told customers to check Google before booking. Reviews from AC customers say little about a heating repair.

4 of the 292 answers about furnace repair, 4 of them from Claude, said the assistant couldn’t confirm this. In our July–August study across eight trades, it cost a business its place in 139 of the 569 conversations where it came up.

Source: How we research what AI assistants recommend.

Your furnace repair page checklist

Work through this list on your furnace repair page. Each item answers something the assistants looked for above.

1. Use “furnace repair”, “heating repair” or “heater repair” in the page title, the main heading and the first paragraph.
2. State the diagnostic fee for a furnace visit, or how it is set, and whether it is credited if the customer approves the repair.
3. List the furnace and heating types you repair, by fuel and equipment, and say which ones you do not.
4. Explain which heating problems the company handles on a repair visit, and what a gas furnace repair visit checks.
5. Explain how a furnace repair visit is booked and when the customer is told the arrival window.
6. Say whether nights and weekends cost more for a heating repair, and how much or how it is set.
7. Say that the customer gets a written diagnosis and repair price, and approves it before work begins.
8. Put a working phone number on the furnace repair page, and say who answers it at night.
9. Say how same-day and next-morning heating visits are booked, and when the customer hears the arrival window.
10. Link to your recent reviews and point to ones where customers describe a furnace or heating repair.

Going further: let assistants see real openings

For planned work like furnace repair, a useful opening says whether it is for an assessment or the job itself, and whether the customer’s address is covered.

Merchant Context builds custom integrations with scheduling software so customers and AI assistants can read your current availability. Where your system records the job type, service area, duration and crew capacity, the integration can show those details with each opening, so an assistant can match it to the request instead of guessing.

We scope each connection to the software and data you actually have. A displayed opening is not a confirmed booking: the customer still confirms through your normal booking process, and the information is only useful while it is fresh.

Source: Merchant Context: custom integrations in the AEO service · checked 2026-10-14.

Questions owners ask

Do HVAC companies repair heat pumps and electric furnaces as well as gas furnaces?

Not all of them. Assistants told customers to say what system they have and ask whether the company services it, because many homes here use heat pumps or electric heat. A page should list the heating types the company repairs.

What happens at the first furnace repair visit?

Answers told customers to expect a diagnostic fee, a diagnosis and a repair price before any work. They told customers to get the price in writing and ask whether the fee is credited. The page should describe the visit in that order.

Is there an extra charge for a furnace repair at night or on a weekend?

Often there is, so assistants told customers to ask for the total cost up front, including any after-hours fee. Some found no-extra-fee offers that applied only to AC. The page should say what a heating call costs after hours.

Which AI assistants did you test?

ChatGPT, Claude and Google AI Mode. Between September 7 and October 14, 2026, they answered 292 questions about furnace repair: ChatGPT 119, Claude 101, Google AI Mode 72.

Will these changes guarantee a recommendation?

No. Nobody can promise that. These changes supply what the assistants were looking for in our research. Whether they move recommendations for your business is something to measure after they go live.

See it on your own website

Send us your website address and we’ll make a free preview of your homepage, rewritten so customers and assistants can find your furnace repair answers. You pay only if you accept it: $2,000 a month, month to month, with no build fee.

Get your free homepage preview

Source: Merchant Context: the current website offer · checked 2026-10-14.

Keep reading

• AI search optimization and websites for HVAC companies.
• Which services need their own page on a contractor website?