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10 Questions to Ask an HVAC Company — Orange County
Hiring an HVAC contractor is a diagnostic-first decision. These ten numbered questions help reveal whether a company will measure the real problem, define responsibility, and document the proposed and completed work.
Editorial record
Written and published by Breezy Air Services
Published on September 3, 2026
7 min read
In this field note
01 · Field note
Questions 1–2: diagnosis and scope
1. What will you inspect or measure before recommending work? Ask whether the process can include equipment condition, airflow, static pressure, duct restrictions, controls, drainage, or other readings relevant to the complaint.
2. What is included—and excluded—from the written scope? The proposal should identify the components, access, tests, protection, cleanup, and documentation included in the price.
02 · Field note
Questions 3–4: qualifications and responsibility
3. Who will perform the work, and who owns the result? Ask whether employees or subcontractors will be involved, how their released scope is verified, and who is responsible for supervision, callbacks, and warranty work.
4. Can I verify the contractor license and applicable credentials? Confirm the license through the CSLB and ask for current insurance or credential evidence relevant to the scope. Breezy operates under CSLB #1077447 and is NADCA certified.
03 · Field note
Questions 5–7: design, ductwork, and permits
5. How will you determine the correct equipment size? For a full residential system installation, ask how the Manual J load calculation, building characteristics, and existing distribution system inform selection.
6. How will you evaluate the duct system and delivered airflow? Ask whether restrictions, leakage, return capacity, room delivery, and diffuser or grille conditions belong in the scope.
7. Who is responsible for permits and required inspections? Confirm the responsible party, included fees, scheduling, and closeout documentation in writing before work begins.
04 · Field note
Questions 8–10: price, warranty, and handoff
8. Which conditions could change the final price? Ask how access, electrical work, permits, duct changes, code corrections, equipment availability, or concealed conditions will be handled and approved.
9. What does the written warranty cover and exclude? Separate labor, manufacturer parts, maintenance requirements, transferability, and the process for requesting warranty service.
10. What documentation will I receive at handoff? Request the final approved scope, relevant measurements, equipment information, before-and-after documentation where appropriate, and any maintenance or operating instructions.
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