Start with the name behind the badge
A logo on a website is a starting point for a question. Ask what the credential is called, who holds it, which organisation issued it and which work it covers. Keep the company name, the technician's name and the credential number separate: they answer different questions.
For your shortlist, record the issuer's website, how you checked the credential and the date. If a company sends an image of a certificate, compare its names and scope with the person who will attend. Ask for an explanation when those do not line up.
| Claim | Useful check |
|---|---|
| Trade licence | Named holder, jurisdiction and work covered |
| Technician certification | Person, specialty and current status |
| Factory-authorised dealer | Business in the manufacturer's current directory |
| Insurance | Current document and scope for your job |
| Rebate programme | Current eligibility and written terms for the equipment |
NATE is a technician credential
NATE describes its certification pathways, including certification, entry-level certificates and specialist exams. Ask which credential the assigned technician holds and whether it applies to the installation or service you need. A business saying it employs certified technicians does not identify who will perform your work.
Ask for the named person's certificate details and current status, then use NATE's official contact or verification information. Do not treat a training attendance certificate as interchangeable with a different examination-based credential.
Check the relevant trade and refrigerant credentials
In the United States, the EPA's Section 608 information explains refrigerant technician certification and its types. This credential answers a refrigerant-handling question; it does not by itself establish every qualification needed for your whole project.
In Canada, the Red Seal refrigeration and air conditioning trade page explains the trade and provincial titles. Ask which provincial or territorial qualification the person holds and check with the relevant authority. Match the credential to the work and location instead of copying another country's checklist.
A manufacturer programme concerns the business and its relationship
A manufacturer's dealer programme is a separate question from an individual's trade credential. Start with the manufacturer's own current locator: for example, Carrier's dealer search provides an official way to look for a business. Check the exact business and branch rather than assuming a similar name is the same company.
Ask what that relationship changes for your equipment, installation support and warranty. Obtain the actual equipment and labour warranty terms. A rebate badge is also separate: ask for the applicable dates, qualifying models and process before counting a programme in your budget.
Use credentials alongside evidence about your job
Request a relevant example of the proposed work, how the equipment was selected and what installation records you will receive. Credentials help you ask the right questions; they cannot supply the missing scope in a quote.
Use the quote comparison worksheet to record equipment, work, warranties and omissions. Explore HVAC professionals and take the same questions to each company. The illustrations on this guide are editorial imagery, not a contractor's certification or completed project.
Sources and review date
Issuer and programme information was checked on 7 October 2026. Follow the original links above for current details. This guide explains a checking method and does not assign credentials or badges to directory businesses.