How to Choose a Commercial Refrigeration Contractor in the Bay Area

The checks that apply to any contractor, us included

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Updated November 11, 2026

Quick answer

Check five things before you hire: an active California contractor license with the C-38 Refrigeration classification on the CSLB lookup, EPA Section 608 certification for whoever handles refrigerant, a quote that names the part, labor and refrigerant before work starts, a written warranty, and, for systems holding 15 lb or more of HFC refrigerant, the leak-repair records you are required to keep. Experience with your equipment brand helps on top of that.

The checklist

Check	How to check it	Why it matters
C-38 Refrigeration license	Search the license number or business name on CSLB's Check a License page. Look for an active status and C-38 among the classifications.	The C-38 classification covers contractors who install, maintain, service and repair refrigerators, refrigerated rooms and insulated refrigerated spaces below 50°F. CSLB notes that seeing a license number does not mean the license is valid.
EPA Section 608 certification	Ask to see the technician's card. EPA does not issue the cards; EPA-approved certifying organizations do. Universal certification covers all equipment types.	Federal rules require certification for technicians who maintain, service, repair or dispose of equipment that could release refrigerant.
A clear quote before work	Ask what failed, how it was confirmed, and for the part, labor, refrigerant type and amount, and warranty.	The same symptom can have several causes. A named part and a named refrigerant let you compare prices and check the work.
Leak-repair records (systems with 15 lb or more of HFC)	Ask how refrigerant added, leak-rate calculations and verification tests will be documented for you.	Since 1 January 2026, owners of covered systems must calculate a leak rate each time refrigerant is added, repair commercial refrigeration leaks above 20% within 30 days, and keep records for three years.
Written warranty	Ask what it covers (parts, labor), for how long, and what voids it.	Two quotes with different warranties are not the same price.
Brand experience	Ask which brands the technicians are factory-trained on, and whether parts for yours are stocked locally.	Brand-specific controls and parts shorten diagnosis. Factory training is not the same as being the manufacturer's authorized warranty servicer.
Coverage and hours	Ask which areas they cover and when emergency service ends.	It tells you who to call for a breakdown in the evening.

Checking a license on CSLB, step by step

Open CSLB's Check a License page.
Search by license number or business name. The number should be on the contractor's ads, bids and contracts: California's contractor license law requires licensed contractors to put their license number on construction contracts, subcontracts and calls for bid, and all forms of advertising (Business and Professions Code §7030.5).
Confirm that the business name matches the company you are dealing with, that the status is active, and that C-38 Refrigeration is listed.
Check the expiration date and the workers' compensation information on the license record.

Questions to ask on the first call

Which license classifications do you hold, and what is the number?
Will the technician who comes be EPA 608 certified?
Do you charge a service call or diagnostic fee, and is it credited toward the repair?
Will I get the price before you start, and can I have it in writing?
What warranty do you give on parts and on labor?
Have you worked on my brand and model?
When does your emergency service end?
For a large system: how will refrigerant added and leak tests be documented for me?

Red flags

No license number on the ad, the quote or the invoice.
A license that is not active, or a business name on CSLB that does not match the company you are dealing with.
Refrigerant added again and again with no leak search. On a covered system, a leak above the 20% rate has to be repaired, not just topped off.
A quote that does not name the failed part or the refrigerant.
Pressure to replace equipment before anyone has diagnosed it.
No warranty, or one that is only spoken.

Planned replacement or a new walk-in? Get more than one price

For an emergency repair, most operators call the contractor they already trust. For a planned replacement, a new walk-in or a remodel, CSLB's consumer guidance suggests getting at least three written bids and not automatically taking the lowest. Make sure each bid covers the same equipment, refrigerant and scope, including permits and removal of the old unit.

Our guides to what a new walk-in costs, self-contained vs remote systems and the 2026 refrigerant rules explain what a bid should cover.

When the right first call is not a contractor

If the equipment is still under the manufacturer's warranty, start with the manufacturer or the dealer, who can tell you which service company may do warranty work. If an ice machine is leased or rented with service, call the leasing company first. Service options compared covers these cases.

Check ours

Cool Aid A/C and Refrigeration holds California contractor license #776244, with the C-20 and C-38 classifications. Look it up on CSLB's Check a License page. Owner Jim McKinny is the license's qualifying individual, and the business has been family-run since 1966.

Our technicians hold EPA 608 Universal certification.
Factory training on Manitowoc, Hoshizaki, Scotsman, True, Traulsen, Turbo Air and Dukers equipment.
Repairs we complete carry a 1-year parts and labor warranty.
Open 7 days, 8 AM to 5 PM, with emergency service until 9 PM, across Santa Clara, San Mateo and Alameda counties and San Francisco.

Then see what happens when you call us.

Next step

What happens when you call Cool Aid →

What to have ready, what the technician checks, and how pricing works.

Check our license, then request service

Checked our license? Call or request service online and tell us what is down and what it is doing.

Open 7 days, 8 AM to 5 PM, with emergency service until 9 PM. CA Lic. #776244.

Call 1-800-266-5243 Request service online

Frequently asked questions

What license does a refrigeration contractor need in California?

Refrigeration contracting falls under CSLB's C-38 Refrigeration classification. Check on CSLB's Check a License page that the license is active and lists C-38.

Is EPA 608 certification the same as a contractor license?

No. EPA 608 certification covers the technician who handles refrigerant. The CSLB license covers the contracting business. Check both.

How do I check a technician's EPA 608 certification?

Ask to see the card. EPA does not issue the cards; EPA-approved certifying organizations do, and the certification does not expire.

Who keeps the refrigerant leak records?

For covered systems with 15 lb or more of HFC refrigerant, the owner or operator must keep the records for three years. Ask your contractor to put the refrigerant added and any test results on the invoice.

Should I take the lowest bid?

Not automatically. CSLB advises against automatically accepting the lowest bid. Compare the same scope, refrigerant and warranty.

Related guides

Sources

Published by Cool Aid A/C and Refrigeration, a family business serving the Bay Area since 1966. California contractor license #776244 (C-20, C-38); owner Jim McKinny is its qualifying individual. Repairs we complete carry our 1-year parts & labor warranty.

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