← All 58 businesses in the Chicago HVAC Index
of 58 in Chicago HVAC
August 2026 edition
All Temp Heating & Cooling (Wauconda)
alltemp.net · free scorecard, published for every business in the market — asked or not
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Confirm by email (double opt-in). We’ll tell you when this shop's stamp changes, or when AI starts naming it. Scorecard stays on the page. No alert blast this week. Payment never touches the grade.
Free move list: email when this shop's stamp changes. Watch ($149/mo) is the monthly readout beside it — different product. Payment never touches the grade.
Receipt
“All Temp Heating and Air Conditioning — Best established local option. Family-owned since 1938, 24/7 service, and a very large review history.”
ChatGPT · PILOT-01-chatgpt-r1 · Aug 11, 2026
Who is the best HVAC company in Chicago?
Every answer that named this business (10)
Each item is a real customer-style question, the exact sentence a model returned, and which assistant said it. Published battery only.
Who is the best HVAC company in Chicago?
“All Temp Heating and Air Conditioning — Best established local option. Family-owned since 1938, 24/7 service, and a very large review history.”
ChatGPT · PILOT-01-chatgpt-r1 · Aug 11, 2026
Which HVAC companies in Chicago do people trust most?
“Interestingly, All Temp stands out in independent Checkbook data: 129 surveyed ratings, thoroughness, competitive pricing and lack of aggressive upselling. A+ BBB rating, accredited since 1982.”
ChatGPT · PILOT-02-chatgpt-r1 · Aug 11, 2026
Are the big HVAC chains in Oak Park better than independent shops?
“Larger/corporate companies can have advantages in 24/7 coverage, technician availability, financing, standardized pricing and warranties. For example, Angi lists All Temp as a corporate provider with a very large review base and emergency service.”
ChatGPT · PILOT-10-chatgpt-r1 · Aug 11, 2026
Are the big HVAC chains in Naperville better than independent shops?
“Chicago Consumers' Checkbook lists several independent Naperville-area contractors highly, including Air-Rite, A-All Temp and Energy Services.”
ChatGPT · PILOT-11-chatgpt-r1 · Aug 11, 2026
Who is the best HVAC company in Chicago?
“4. Best for long-standing local reliability: All Temp Heating & Air Conditioning”
Gemini · PILOT-01-gemini-r1 · Aug 11, 2026
Who is the best HVAC company in Evanston?
“5. All Temp Heating & Air Conditioning”
Gemini · PILOT-03-gemini-r1 · Aug 11, 2026
Which HVAC companies in Chicago do people trust most?
“All Temp Heating & Air Conditioning”
Gemini · PILOT-02-gemini-r1 · Aug 11, 2026
Which HVAC companies in Evanston do people trust most?
“5. All Temp Heating & Air Conditioning”
Gemini · PILOT-04-gemini-r1 · Aug 11, 2026
Are the big HVAC chains in Naperville better than independent shops?
“Naperville has established local firms as well. Air-Rite identifies itself as family-owned with 67+ years serving the area; A-All Temp advertises 24-hour emergency service; Dutchman says it has served Naperville 20+ years. Longevity alone is not proof of quality, but these are the kinds of independents worth including in a comparison. [air-rite +2]”
Perplexity · PILOT-11-perplexity-r1 · Aug 12, 2026
Get me three quotes for a new AC unit in Chicago
“All Temp Heating & Air Conditioning — free in-home estimate for central AC replacement; serves Chicago and nearby neighborhoods. 1-866-693-2009 [alltemp]”
Perplexity · PILOT-13-perplexity-r1 · Aug 12, 2026
Models
⚠ Fragile visibility. Only ChatGPT and Gemini name them; Perplexity never does. If either changes its mind, their AI visibility collapses.
Can AI read their site?
Probe stability: 0 signals disagreed between the two passes.
What to fix
- Make sure the site answers ordinary HTTP clients, not just browsers; a WAF that blocks agents also blocks assistants.
- Publish a real
/llms.txtthat summarizes the business for AI agents. - State an explicit AI crawler policy in
robots.txtfor GPTBot, ClaudeBot, Google-Extended and PerplexityBot. - Serve a valid XML sitemap and declare it in
robots.txt. - Add schema.org
LocalBusinessJSON-LD so machines can read hours, service area and contact details. - Optional: publish a verified MCP card at
/.well-known/mcp.jsonif agents should transact directly.
History
This history starts here. August 2026 is the baseline — every future edition stacks on top of it, and a dated record like this cannot be created after the fact.
Watch this business
Watch this business
Monthly readout; scorecard stays free
$149 / month
Free move list: email when this shop's stamp changes. Watch ($149/mo) is the monthly readout beside it — different product. Payment never touches the grade.
- Told when a model starts or stops naming them
- Machine-readability changes re-checked each edition
- Payment never touches the grade
$149 a month against a four-figure job. If one readout helps you win back a single job a year — or hold one you were about to lose to a shop the assistants like better — it has paid for itself. The scorecard stays free either way.
This scorecard is free and it is not for sale. We do not sell the fix, and no payment moves this number — not from this business, not from whoever markets it. Send corrections with evidence to watch@lodestarindex.com.
Where to next
See where this business sits against all 58 competitors.
Watching a book of clients against an independent number.
The battery, the probe, and the reliability gate.