Kolpak Walk-In Cooler & Freezer Repair
Kolpak has been the default panel-walk-in spec for new LA restaurants and chain remodels for about fifteen years, more Kolpak panels ride in LA back-of-house than any other walk-in brand, full stop. Our techs handle Kolpak STIX panel-joint seal work, KCS and KFS indoor-outdoor combo units, P7 outdoor builds, Quick Ship pre-assembled replacements, and the refrigeration side (Copeland or Tecumseh condensing units, Heatcraft or Bohn evaporators) across LA County, Orange County, Ventura, San Bernardino, and Riverside. Same-day dispatch, $120 commercial diagnostic waived with the repair.
- STIX panel system familiarity, KCS, KFS, P7, Quick Ship every week across LA
- $120 commercial diagnostic, waived when you authorize the repair
- 5 branches: West Hollywood · Los Angeles · Thousand Oaks · Pasadena · Irvine
- EPA 608 certified, R-22 to R-448A / R-449A retrofits handled weekly
Where we work
Local branches across Southern California
Eight branches covering Los Angeles, Orange, Ventura, San Bernardino, and Riverside counties. Same-day routing on calls before 1 PM.
What our techs fix on Kolpak walk-ins, STIX panel seals, door and gasket, compressor, evaporator, condensing unit integration
The first thing our techs tell a new customer on a Kolpak call: Kolpak is a panel company, not a compressor company. The panels, the door frames, the cam-lock hardware, the STIX joint system, that's what Kolpak builds. The condensing unit sitting on the roof is almost always a Copeland or Tecumseh semi-hermetic; the evaporator inside the box is almost always Heatcraft (Bohn or Larkin); the thermostats and the defrost controller are third-party components. That matters for a repair quote, when the restaurant manager tells us "the Kolpak is down," the real failure is usually on one of those third-party components, and a repair ticket that doesn't separate panel-side from refrigeration-side is going to confuse the invoice.
Every week our trucks roll on Kolpak walk-ins across LA, Culver City ghost-kitchen clusters, DTLA Arts District commissaries, Pasadena and Glendale chain-restaurant back-of-house, Westside hotels, Valley fast-casuals, Long Beach catering kitchens, Boyle Heights and Huntington Park Mexican-owned restaurants. The failure pattern repeats: door hardware and gaskets first, refrigeration second (fan motors, expansion valves, refrigerant charge), panel-joint seals third on walk-ins 12-plus years old, and occasionally a Quick Ship pre-assembled replacement for a restaurant whose existing walk-in is finally beyond repair. Our techs carry the stock for the first three on the truck; Quick Ship replacements get coordinated with Ali Group distribution, usually 2 to 4 weeks to LA.
Kolpak walk-in failures we see most often in LA kitchens
Pattern recognition after running Kolpak calls every week. These six failure clusters cover the bulk of the dispatch, if the manager can describe what the cooks are seeing, our tech is usually 70% of the way to the diagnosis before the truck pulls up.
Door gasket compression loss, the "fog rolls out too fast" call
The line cook opens the walk-in during Saturday-night service and a plume of fog rolls out across the pass harder than it did a month ago. Manager notices frost creeping down the outside edge of the door frame the next morning. Both are the same failure, the magnetic gasket on the door has been compressed out of spec, usually by a pallet strike on the bottom edge or a year of hinge sag crushing the top corner. On Kolpak freezer doors the heated door frame now has to fight a condition it shouldn't see, and its lifespan drops. We pull the gasket, verify the frame is square with a straightedge, install a replacement matched to the door profile, check hinge height, and retest. Two-hour job when the gasket is on the truck, which it usually is.
STIX panel-joint seal separation on 12-plus-year walk-ins
The STIX panel system uses cam-locks to pull panels together at the joint, with a thermal-break gasket running the seam. On walk-ins over about twelve years old we occasionally see a hairline cold-air bleed along a ceiling or vertical seam from inside the cooler, not a panel failure, not a foam failure, but the interior joint gasket has compressed or shrunk and the cam-lock isn't pulling the panel quite as tight as it used to. Our first move is to re-tension the cam-lock with a panel wrench; if that closes the gap, job done. If the interior gasket is the failure mode, we replace it at the affected seam. When the panel itself has moved out-of-square from forklift contact or seismic flex, caulk and re-tensioning won't hold, we tell you straight that the right fix is a panel pull-and-reset, and we'll scope the work.
Condensing-unit fan motor down after a 100-degree stretch
Rooftop Kolpak condensing units take a beating through a three- or four-day LA heat wave. The Copeland or Tecumseh condenser fan runs continuously, the motor bearings finally give, and the compressor then over-pressures and trips on high-head safety. We show up to what the restaurant thinks is a dead compressor and trace it backward, the fan motor is the root cause, the compressor protected itself and shut down before it cooked. Fan motor swap from truck stock in common HP sizes, condenser coil pulled and cleaned (LA grease and dust pack the fin spacing fast, especially in Koreatown and Valley fast-casual strip malls), high-pressure switch verified, system restarted. The compressor almost always survives if the safety did its job.
Evaporator defrost cycle stuck, freezer drifting warm on an ice-packed coil
On Kolpak freezer walk-ins the Heatcraft-supplied evaporator runs a defrost sequence on a timer or demand control. When defrost stops completing, a slab of ice builds on the coil, airflow chokes, and the freezer drifts warm even though the compressor is working harder than it should be. Usual suspects on 10-plus-year installs: failed defrost termination thermostat, burned defrost heater element, or a mechanical timer that lost its program after a power event. On newer installs we check the defrost contactor and controller first. Process: pull the ice down with a steam kettle, we never use a chisel on aluminum coils because a chisel slip punctures a tube and the repair just tripled in cost, verify defrost runs end-to-end, swap the failed component.
Expansion valve hunt / TXV undersized after a refrigerant change
This is the one that burns us when another contractor did the work first. The restaurant did an R-22 to R-448A or R-449A retrofit a few years ago and kept the original expansion valve. The box is drifting a few degrees off setpoint, pulling more power than it should, and the compressor is short-cycling at certain ambient temperatures. Reason: the expansion valve orifice is sized for R-22, not for the replacement blend, and it's hunting or metering wrong at the current charge. We pull suction and discharge pressures, calculate the superheat against the correct target for the refrigerant in use, and if the TXV is the problem we swap it to a properly sized unit. Nine times out of ten this fixes a "my Kolpak doesn't hold temp anymore" call that the previous contractor couldn't close out.
Freezer door heater failure, ice ridge at the top of the jamb
Kolpak freezer-side door frames run a resistance heater that keeps condensation and ice off the gasket contact surface. When the heater element drops out, usually a burned filament or a corroded terminal at the junction box where LA kitchen humidity ate the connection, frost starts building at the top of the door jamb within a day, and a ridge of ice forms within a week that breaks the gasket seal and cascades the problem. We meter the element for continuity, trace the heater circuit back to the terminal block, either replace the element or clean up the connection if that's the issue, and verify the heater is pulling nameplate amps before we leave. Two-hour job when the element is on the truck.
Kolpak models we service, KCS / KFS, P7, Quick Ship, and custom STIX builds
Kolpak's catalog is built around the STIX panel system, with product lines that differentiate by assembly approach (field-assembled versus pre-assembled), installation environment (indoor versus outdoor), and whether the unit is a combo cooler-freezer or a single-temperature build. Our techs cover the full range:
KCS and KFS indoor-outdoor walk-ins
The bread-and-butter Kolpak line. STIX panel system, field-assembled, sized to the restaurant's floor plan. KCS covers combination cooler-freezer builds and indoor installations; KFS is the freezer-weighted variant. Door hardware, refrigeration-side work, and panel-joint seal service are the frequent calls.
P7 outdoor walk-ins
Outdoor-rated build with weatherized panel skin, gasketed roof system, and rooftop condensing-unit mounting. Common on rooftop LA restaurants and commissaries in DTLA and on high-rise mixed-use buildings. Roof flashing, rooftop condensing-unit integration, and drain-pan clearance are where most P7 repair calls originate.
Quick Ship pre-assembled
Pre-assembled panel kit that ships in roughly 2 to 4 weeks to LA, installed in 1 to 3 days. Ghost-kitchen operators in Culver City, DTLA Arts District, and East Hollywood run Quick Ship builds because the speed-to- service matters more than the custom fit. Our techs service the installed Quick Ship units and coordinate Quick Ship replacement orders when a walk-in is beyond repair.
Custom STIX builds
Full-custom field-assembled walk-ins on the STIX panel system, any footprint, any insulation spec, any door configuration. Common on hotel and large-restaurant projects. Same repair fundamentals as KCS / KFS; the custom aspect is usually in door hardware and the refrigeration-unit sizing rather than the panels themselves.
Refrigeration components (Copeland, Tecumseh, Heatcraft)
Kolpak walk-ins pair with Copeland or Tecumseh condensing units and Heatcraft Bohn or Larkin evaporators. Component-level detail on the refrigeration side, defrost sequences, fan-motor specs, expansion valve sizing, lives on our Heatcraft, Bohn and Larkin repair page.
Seismic anchoring for LA installations
LA County Building Code requires seismic anchoring for commercial walk-ins; the panel base rail bolts to the slab and the ceiling cross-bracing ties the structure together. On retrofit and replacement jobs we verify the seismic anchor points match current code and document the install, it's a detail most out-of- market contractors miss on LA builds.
Parts supply after the Welbilt → Ali Group transition (2022), what changed for Kolpak owners
Ali Group North America closed the Welbilt acquisition in July 2022. Kolpak was one of the brands that came with it, along with Master-Bilt, Nor-Lake, Champion (commercial dishwashers), Beverage-Air (reach-in refrigeration), Manitowoc (ice machines), and Garland (cooking equipment). Most third-party pages and retailer sites still describe Kolpak as Welbilt-owned, which is now multiple years out of date. For an LA restaurant operator, the transition has three practical effects that show up in service calls.
One, parts distribution consolidation. Kolpak parts that used to route through the Welbilt distributor network now share the Ali Group North America channel. For a kitchen running a mixed Ali fleet (Kolpak walk-in plus Manitowoc ice machine plus Champion dishwasher plus Beverage-Air reach-ins, which is common in new LA builds), the parts supply collapses into one account and one dispatcher for the common wear items. Factory- exact STIX parts still ship from the Kolpak plant, typically 3 to 5 business days to LA.
Two, Quick Ship lead-time improvement. Ali's North American logistics operation tightened Quick Ship delivery windows compared to the tail end of the Welbilt era. Our Quick Ship replacement quotes to LA ghost-kitchen operators now land more consistently in the 2-to-4-week ship window rather than slipping toward 5 or 6 weeks.
Three, mixed-family restaurant economics. A new LA restaurant or ghost-kitchen commissary built with Kolpak walk-in, Manitowoc ice machine, Champion dishwasher, and Garland cooking now has one parent-company parts supply path for those four critical systems. The Ali "family package" isn't marketing for us, it's a real operating effect that makes one-vendor service calls work for mixed-brand kitchens. Related sibling pages: Master-Bilt walk-in and dipping cabinet repair and Nor-Lake walk-in and Scientific refrigeration repair. For the independent alternative outside the Ali Group (World Cat / Quincy IL since 1887), U.S. Cooler walk-in repair.
What Kolpak walk-in repair typically costs
Parts and labor vary with refrigeration tonnage and whether a factory-exact or compatible part is used. Common repair bands:
| Service | Typical Range | Notes |
|---|---|---|
| Commercial diagnostic | $120 | Flat, waived if repair is authorized same visit |
| Door gasket replacement | $180 – $320 | Installed; door-profile dependent |
| Freezer door heater element | $280 – $460 | Includes junction-box cleanup |
| Cam-lift hinge kit swap | $240 – $480 | Installed; both hinges if one has failed |
| STIX panel-joint gasket replacement | $320 – $560 | Per-seam, accessibility-dependent |
| STIX cam-lock re-tensioning / hardware swap | $220 – $420 | Usually per-seam or per-panel |
| Condensing-unit fan motor | $380 – $650 | Common Copeland / Tecumseh sizes on truck |
| Evaporator fan motor | $280 – $520 | Common Heatcraft sizes on truck |
| Evaporator defrost heater / termination thermostat | $320 – $560 | Freezer-side walk-ins |
| Expansion valve replacement / resizing after retrofit | $420 – $720 | Includes evacuation and recharge |
| R-22 → R-448A / R-449A retrofit | $950 – $1,850 | TXV swap + recovery + recharge + new label |
| Semi-hermetic compressor swap | $1,800 – $3,800 | Tonnage- and refrigerant-dependent |
| Complete condensing-unit replacement | $2,800 – $6,500 | Matched to load, installed |
| Quick Ship walk-in replacement (coordination) | Quote-dependent | 2 – 4 week ship + 1 – 3 day install |
Full cost ranges by repair type are in our walk-in cooler repair pricing and walk-in freezer repair pricing guide. Quick Ship replacement quotes come as a full written scope, panel cost, condensing-unit sizing, seismic anchor verification, electrical rough-in coordination, and install timeline matched to your service window.
Service areas, where our Kolpak calls come from
Central LA / Ghost-kitchen corridor
Downtown · Arts District · Koreatown · East Hollywood · Silver Lake · Echo Park · Hollywood · West Hollywood
Westside
Beverly Hills · Century City · Brentwood · Santa Monica · Culver City · Venice · Marina del Rey
Southeast LA / Hispanic corridor
Boyle Heights · East LA · Huntington Park · South Gate · Bell · Cudahy · Lynwood · Maywood
San Fernando Valley
Sherman Oaks · Studio City · Van Nuys · Encino · Tarzana · Woodland Hills · Pacoima · Burbank · Glendale
San Gabriel Valley
Pasadena · South Pasadena · San Marino · Alhambra · Monterey Park · Arcadia
South Bay / Long Beach
Long Beach · Torrance · Redondo · Manhattan Beach · El Segundo · Carson · San Pedro
Orange County
Irvine · Newport Beach · Costa Mesa · Anaheim · Huntington Beach · Tustin · Santa Ana
Ventura County
Thousand Oaks · Westlake Village · Ventura · Oxnard · Camarillo · Simi Valley
County coverage: Los Angeles County, plus Orange, Ventura, San Bernardino, and Riverside counties on same-day dispatch.
Related walk-in and refrigeration pages
Kolpak repair, frequently asked
Do you stock Kolpak STIX panel replacement gaskets?
Common magnetic door gaskets sized to Kolpak door profiles ride on the truck, that covers maybe 80% of the door-gasket calls we run. The STIX panel system itself uses foam-core urethane panels with cam-locks and an interior thermal-break gasket at the joint; when you have a panel-to-panel seal failure (not a door gasket), it's usually the cam-lock alignment or a shrunk interior joint gasket, and we carry replacement joint gaskets in the common panel thicknesses (4 inch and 5 inch) for those fixes. Factory-exact STIX parts, specific cam-lock hardware, heated-door-frame components, custom door profiles, come through the Ali Group distributor network to the LA area, typically 3 to 5 business days.
Can your techs rebuild a Kolpak compressor, or only replace it?
Depends on the compressor. Kolpak doesn't build compressors, the condensing unit on a Kolpak walk-in is usually Copeland or Tecumseh, sometimes Heatcraft. On open-drive Copeland semi-hermetics, rebuild is feasible when the crankshaft and cylinders are good, we send the compressor to a rebuilder and run a loaner while it's out. On hermetic and scroll compressors, rebuild isn't economic; it's a swap. Our honest call: on a 12-plus-year-old compressor, a rebuild chases labor cost and risk, and a swap with the current-spec replacement is usually the right move. We tell you that straight instead of pushing the more profitable option.
How long does a Kolpak Quick Ship walk-in replacement take for an LA restaurant?
Kolpak Quick Ship is the pre-assembled panel kit that's supposed to ship in 1 to 3 weeks from order, not the 8 to 12 weeks a fully custom walk-in takes. In practice to LA: ship time is typically 2 to 4 weeks, install is 1 to 3 days depending on panel count and whether the existing refrigeration is being reused. The critical-path item for most restaurants isn't the Quick Ship panel kit, it's the condensing unit, the electrical rough-in, and the health-department re-inspection before you go back on service. We coordinate the install timing with your GC or operator so the walk-in is back online with the minimum service interruption.
Is Kolpak still owned by Welbilt, or Ali Group now?
Ali Group. Ali North America closed the Welbilt acquisition in July 2022, and Kolpak moved into Ali alongside Master-Bilt, Nor-Lake, Champion dishwashers, Beverage-Air reach-ins, Manitowoc ice machines, and Garland cooking. Most third-party pages still describe Kolpak as Welbilt-owned, which is out of date by multiple years now. For an LA restaurant running a mixed Ali fleet (which is increasingly the default in new builds), the practical effect is that Kolpak parts distribution now shares a single vendor channel with the rest of the family, one account, one invoice, one dispatcher for the common parts.
Do you handle R-22 → R-448A / R-449A refrigerant retrofit on older Kolpak condensing units?
Yes. EPA 608 Universal certified (#1346255700410) across the team, and Kolpak R-22 retrofits are a weekly routine, usually on condensing units installed between 2005 and 2015 that the restaurant owner put off retrofitting until R-22 reclaim pricing hit $300 per pound after the 2020 phase-out. Process is standard: recover the R-22, swap the expansion valve to a size matched to the new blend, evacuate to deep vacuum, charge with R-448A or R-449A, update the nameplate label with new refrigerant type and charge weight, and handle the LA County refrigerant-record filing. The Copeland or Tecumseh compressor typically stays, if it's tired enough to warrant replacement, we'll tell you before the retrofit and combine the work.
What does a typical Kolpak walk-in repair cost in LA?
Commercial diagnostic is $120, waived with authorized repair. Common repair bands: door gasket $180–$320 installed; cam-lift hinge kit $240–$480; STIX panel-joint gasket replacement $320–$560 (depends on seam length and accessibility); condensing-unit fan motor $380–$650; evaporator fan motor $280–$520; defrost heater / termination thermostat $320–$560; R-22 to R-448A or R-449A retrofit $950–$1,850; semi-hermetic compressor swap $1,800–$3,800; full condensing-unit replacement $2,800–$6,500 installed. Full cost ranges are in our walk-in refrigeration pricing guide linked below.
Do you serve Mexican-owned restaurants / paleterias with Spanish-speaking techs?
Yes. Our techs cover Boyle Heights, East LA, Huntington Park, Pacoima, the southeast LA corridor, and the Latino-dense cities in Orange County routinely, Kolpak walk-ins at Mexican-owned restaurants, panaderias, carnicerias, and paleterias are a real slice of our weekly dispatch. We have Spanish-speaking techs on the team and the owners who call us appreciate not having to translate a refrigerant-retrofit conversation or a compressor-swap quote into English. Same diagnostic fee, same parts supply, same trucks.
Kolpak walk-in down? Call the branch closest to your restaurant.
Same-day in LA, Orange County, Ventura, San Bernardino, and Riverside. Commercial diagnostic $120, waived with repair.