Commercial Kitchen Maintenance Checklist: THE SEALS FIX SIX

Small Repairs. Fewer Kitchen Headaches.

By Andy Dinkin, Owner of The SEALS of North Carolina (9 territories) and Virginia (4 territories)

Here’s what you’ll learn when you read this article:

• The six most common items dinged on a health inspection. These six small items (gaskets, cutting boards, door sweeps, strip curtains, door closers, and hinges) are most often overlooked by kitchen managers but keep showing up on health inspection reports
• What inspectors actually wrote up in 2025 and 2026, and what the FDA Food Code and federal walk-in cooler rules require
• Quick checks your team can run on every walkthrough, plus why you should find the cause before you buy the part

Running a commercial kitchen means deciding what needs your attention now and what can wait until tomorrow (or until the beginning of the month or quarter).

Typically, a torn gasket usually gets tomorrow. So does the worn door sweep. Then tomorrow gets busy, too.  Then you forget completely because more gets put on your plate.  

I get it. You’ve also got employees to manage, customers to serve, and food costs that apparently haven’t heard you’re trying to make a profit.

But small maintenance problems have a habit of getting expensive while you’re busy doing everything else. Unfortunately, they also have a habit of ending up in the local news investigative report or some Instagram post.

Read any newspaper’s restaurant inspection roundup, and you’ll see the same small items again and again. Recently in Missouri, a grocery store was cited for torn door gaskets on both its salad and cut-fruit coolers. A few weeks later, a local pizzeria was written up for a torn gasket on its reach-in cooler. In October, an Indiana TV station’s inspection report listed ripped cooler gaskets right alongside an ice machine with its door broken off.

None of those are expensive fixes. People and the media love to publish these types of violations for every customer to read. 

That’s why I created THE SEALS FIX SIX. To keep you ahead of the health inspector…and avoid any hit to your hard-earned reputation.

Over the years, I kept seeing six items all-too-often overlooked by restaurant maintenance managers and operators: 

1. Gaskets
2. Cutting boards
3. Door sweeps
4. Strip curtains
5. Door closers
6. Door hinges

Operators have bigger priorities, but these things need to be prioritized. The SEALS Fix Six gives managers six practical checks to help prevent inspection issues, unnecessary expenses, and daily frustrations. Think of it as a commercial kitchen maintenance checklist for the parts nobody remembers.

The Fix Six at a glance

Quick-reference table added for skimmers, Google featured snippets, and AI answer engines. Code numbers refer to the FDA Food Code, which states adopt in their own versions; local numbering may differ.

1. Gaskets: A closed door isn’t always a sealed door

Your cooler door shuts, but does it keep the cool air inside?

A torn, loose, or hardened gasket can leave gaps that let warm air enter, adding to the refrigeration system’s workload. Dirty or damaged gaskets can also become health inspection issues.

Sometimes two issues at once. During a June 2025 routine inspection at a University of Michigan campus market, the inspector cited torn, open-seamed gaskets on one-door coolers under the Food Code’s equipment repair rule, then cited the same units again for mold-like growth on those gaskets. One worn part. Two violations.

Check the entire perimeter, especially the corners. Look for tears, loose sections, buildup, and gaps when the door is closed. A simple test that ENERGY STAR and the U.S. Small Business Administration have recommended for years: close the door on a dollar bill. If it slides out easily, the gasket likely needs to be replaced. Try it at all four corners, where gaskets usually fail first.

Don’t assume every gap means you need a gasket. A poorly aligned door can keep a perfectly good gasket from sealing. The SEALS specialist can help you identify the cause before needlessly buying a cheap part on Amazon.

When it is the gasket, replacing worn refrigeration door gaskets is usually a quick fix that keeps cold air where it belongs. Doing it yourself, or worse, having an employee do it, is usually more hassle and typically done incorrectly.  Truly, what you need is a SEALS gasket specialist. 

2. Cutting boards: Clean has to mean cleanable

A cutting board works hard, and eventually, it will show (in the form of big grooves and cut marks).

Deep grooves and damaged surfaces can make effective cleaning and sanitizing difficult.  In fact, that’s where unseen bacteria love to hide. Another trip through the sink won’t repair the surface.

That’s not just an inspector’s opinion. Food microbiologist Dean Cliver’s University of California, Davis research found that knife-scarred plastic boards could not be cleaned and disinfected by hand, especially when residue like chicken fat was left in the cuts.

A soiled board needs constant cleaning. A board that can no longer be effectively cleaned and sanitized should be resurfaced or replaced. For example, Virginia’s food regulations specifically require resurfacing those boards or discarding them if resurfacing isn’t possible. That language comes from the FDA Food Code (section 4-501.12), and states such as Washington use nearly the same wording.

Inspectors enforce it. In Wakefield, Massachusetts, a July 2026 inspection found cutting boards throughout a restaurant with heavy scoring and grooves. An April 2026 inspection in the same town flagged a heavily scored sandwich-rail board at a convenience store, where the person in charge said new boards had already been ordered. Ordering after the inspection is the expensive way to do it.

Check the condition after cleaning. Staining alone doesn’t tell the whole story; look for grooves, cracks, and deterioration. Address it before an inspector has to point it out.

The easiest thing is to contact your local SEALS specialist to custom fit a new one – less hassle and worth the expense. 

3. Commercial door sweeps: Small gaps. Uninvited guests.

A worn-out restaurant door sweep on an exterior door (like the one in the back near the smoke break area and dumpster) is a welcome mat for insects, rodents, and other creepy crawlers. They don’t need much encouragement to find their way into your establishment.

In fact, a house mouse can squeeze through a gap of about a quarter inch, roughly the width of a pencil, according to Pest Management Professional magazine.

The door needs to close without any gaps. It’s simple, just look for daylight underneath, torn material, and missing sections. The sweep should contact the threshold without interfering with the door’s operation. Easy test: turn off the lights in the back hallway on a sunny afternoon. If you can see daylight under the door, so can every mouse near the dumpster.

This is also a code issue. In Virginia, for instance, exterior openings generally must protect against insects and rodents, including through solid, self-closing, tight-fitting doors, with specified exceptions. The same requirement appears in FDA Food Code section 6-202.15.

Some cities treat it as a serious violation. In Chicago, door gaps are written up under the health department’s “insects, rodents and animals not present” item, which is classified as critical. One North Side café that failed a June 2025 inspection had a quarter-inch gap at its rear exit door sweep listed among its critical violations.

Check the whole opening. A new commercial door sweep won’t solve a door that doesn’t close (check the hinges, the handle, and more).

4. Strip curtains: They work better in the doorway

Walk-in doors open dozens of times throughout the day in the back of house. Strip curtains can also help limit air exchange while employees move through.

The payoff is real. ENERGY STAR has estimated that strip curtains can cut outside-air infiltration by about 75 percent, and California’s Flex Your Power program notes that with a utility rebate, payback is usually well under a year. Before you buy, ask your utility whether it offers a rebate.

On newer walk-ins, they’re not optional, either. Federal energy rules require walk-in coolers and freezers built since January 1, 2009, to have strip doors, spring-hinged doors, or another way to limit infiltration when the door is open.

If your strip curtains are missing pieces, or a portion of one is damaged or there are gaps in between, this greatly reduces their usefulness. And if you use the “cheat code” (of pulling the curtain aside and leaving it there), this doesn’t help either. 

Another tip is to simply watch them during normal use during the day. How often are they being used; are the strips clean, intact, and overlapping? Can employees move through easily? Are they using the cheat code?

If the curtain is always pushed out of the way, ask why. Your team is more likely to use it properly when it works for them.

If strips are missing or brittle, replacing them is one of the least expensive ways to help hold temperature.

5. Door closers: Almost closed is still open

A door closer has a straightforward job description. It should close the door – completely.

Federal regulators actually put a number on “almost.” The same walk-in rule requires automatic door closers that firmly close any walk-in door that has been pushed to within one inch of fully closed. (Very large doors, wider than 3 feet 9 inches or taller than 7 feet, are exempt.)

If employees have to give it a final shove (with their arms or body), something needs attention. Check that the door closes fully and consistently during normal use.

Watch for frost, too. In a June 2025 inspection at a Massachusetts healthcare facility’s kitchen, the inspector found a walk-in freezer with frost and ice built up on the door, handle, and latch to the point that the door could not seal shut. Ice on a freezer door is usually a sign that warm, moist air has been getting in for a while.

Have the cause identified before replacing parts. It could be the closer, alignment, hinges, or an obstruction.

If you are dealing with a walk-in cooler door not closing, this guide walks through the most common causes.

Your team has enough to remember without adding “go back and shut that door” to every trip.

6. Hinges: Check the small part before buying the big one

I’ve seen facility managers spend more than $1,000 replacing a cooler door when a ~$100 hinge replacement would have solved the problem. That’s an expensive way to get a new hinge.  That’s also why having a trusted and reliable partner, like the SEALS, who are also specialists, to be on your side and give it to you straight.

Restaurant cooler door hinges take more abuse than most people realize. As the Los Angeles Department of Water and Power points out in its guidance to businesses, refrigeration doors are heavy and get opened and closed many times a day, which is why the utility lists hinge maintenance right next to gasket replacement.

Costs vary, but the lesson holds: find the cause first. A sagging door, scraping edge, or uneven seal deserves a check of the hinges and alignment before replacing the entire door. One quick test: gently lift the door by its handle while it is closed. If the gap at the seal changes, the hinges are the likely culprit.

Worn cooler door hinges are one of the most common reasons a door stops sealing the way it should.

Put the SEALS Fix Six on your walkthrough

Put these six items on your regular walkthrough. If you don’t have time to do it, assign it to a subordinate. Or hire a trusted professional. Whatever you choose, make sure to follow up, and confirm the repair solves the problem.

For a bigger-picture look at why these small parts matter, read another SEALS owner, Evans Smith’s Inside Dish post on commercial kitchen maintenance. 

A few small repairs today can save you a much bigger problem tomorrow.

If you’d like another set of eyes, invite THE SEALS in for a complimentary commercial kitchen inspection. We’ll check all six, explain what needs attention, and let you decide what to address.

Frequently Asked Questions

What should be on a commercial kitchen maintenance checklist?

Along with mechanical service, include the small parts that most often get skipped. THE SEALS Fix Six covers six: refrigeration gaskets, cutting boards, door sweeps, strip curtains, door closers, and hinges. Each one affects food safety, energy use, or health inspection results.

How do I know if my cooler gasket needs to be replaced?

Look for tears, flattened or hardened sections, loose corners, and mold-like buildup. Then close the door on a dollar bill at several points. If the bill slides out easily, the gasket likely is not sealing. Check door alignment and hinges too, since a sagging door can keep a good gasket from sealing.

When does a cutting board need to be resurfaced or replaced?

Under the FDA Food Code (section 4-501.12), cutting boards that can no longer be effectively cleaned and sanitized must be resurfaced, or discarded if they cannot be resurfaced. Deep grooves and cracks are the usual warning signs.

How big a gap under a door is too big?

A house mouse can fit through a gap of about a quarter inch. If you can see daylight under an exterior door, the sweep, threshold, or door alignment needs attention.

Are strip curtains required on walk-in coolers?

Federal rules require walk-in coolers and freezers manufactured since January 1, 2009, to have strip doors, spring-hinged doors, or another method of limiting air infiltration when the door is open. They must also have automatic door closers on most doors.

What happens during a free Fix Six inspection?

A local SEALS technician checks all six items, explains what needs attention and why, and lets you decide what to address. There is no obligation to make any repairs.

Sources

Recommended: publish this list at the bottom of the post. Visible sources build trust with readers and make the article easier for Google and AI search tools to verify and cite.

• Jefferson City News-Tribune, food service inspections, May 2026
• Jefferson City News-Tribune, food service inspections, July 2026
• WTHI-TV, Vigo County inspection results, October 2026
• University of Michigan EHS, routine food inspection report, June 2025
• Reliant Energy / ENERGY STAR & U.S. SBA, food service equipment energy tips
• Dean O. Cliver, Ph.D., “Plastic and Wooden Cutting Boards” (UC Davis research summary)
• Washington Administrative Code 246-215-04505 (FDA Food Code 4-501.12)
• Town of Wakefield, MA, food inspection report, July 2026
• Town of Wakefield, MA, food inspection report, April 2026
• Pest Management Professional, house mouse exclusion
• Chicago Department of Public Health inspection record, June 2025
• National Restaurant Association Conserve, “Remember, 4 on the Door!” (Fast Casual)
• Flex Your Power, refrigeration best practices for restaurants
• 10 CFR 431.306, federal energy standards for walk-in coolers and freezers
• Town of Wakefield, MA, food inspection report (healthcare facility), June 2025
• LADWP, “Refrigeration: Closing the Door on Energy Waste”