Kolpak Walk-In Repair Brentwood
Gold Coast Refrigeration Service's appliance repair service Kolpak walk-in coolers and freezers across Brentwood and the East Bay. Our technicians hold a California C38 Refrigeration Contractor License (#1122301), carry full liability insurance, and are members of the United Appliance Servicers Association.
Kolpak Polar Pak walk-ins are some of the most common boxes in restaurants, hotels, healthcare kitchens, and convenience stores in the Bay Area. We repair Kolpak KCO condensing units, KEC evaporator coils, door hardware, hinges and closures, and the panel and floor systems that make up the box itself.
If your Kolpak walk-in is warming up, leaking water, icing over, or has a damaged door or panel, call Gold Coast Refrigeration Service to schedule a visit.
Schedule Service
Kolpak Walk-In Components and Models We Service
Kolpak builds modular walk-in coolers and freezers under the Polar Pak name, along with the KCO condensing units and KEC evaporators that come paired with them as factory matched refrigeration systems. We service the full Kolpak product line, indoor and outdoor.
If your Kolpak is older or has a non-standard configuration, call us with the model and serial off the box plate and we will confirm parts availability.
Polar Pak Walk-In Coolers
Standard medium temperature walk-in coolers
Polar Pak Walk-In Freezers
Low temperature freezers with reinforced floor panels
Outdoor Walk-Ins
Weatherproof outdoor walk-ins with roof caps
Quick-Ship Walk-Ins
Stock size coolers and freezers in standard footprints
KCO Condensing Units
Indoor and outdoor air-cooled condensing units
KEC Evaporator Coils
Matched evaporators for Kolpak cooler and freezer boxes
Replacement Doors and Hardware
Door panels, hinges, closures, sweeps, gaskets
Floor Panels and Insulation
Reinforced floor panels and replacement insulation
Why Schedule Professional Kolpak Service?
Schedule Service- Keeps walk-in box temperatures within health code limits
- Prevents KCO condensing unit failures from dirty coils and low charge
- Catches door gasket and sweep failures that drive energy and ice problems
- Maintains defrost cycles so KEC evaporators do not ice over
- Protects panel and floor systems from water damage and impact
Top Rated Kolpak Walk-In Repair Company
Gold Coast Refrigeration Service is a top rated Kolpak walk-in repair company in Brentwood and the surrounding East Bay. Here is what customers say about working with Jason and the team, and where to find us.
"Highly recommend Gold Coast. Jason is professional and pleasant and straight forward. His team are also customer service oriented. This morning I was commenting on how nice it was to have a refrigerator in good working order."
"I contacted Jason about my fridge having fluctuating temperatures and intermittently turning off. Within seconds of describing the issue, Jason knew right away what the problem was. All around awesome experience, and would recommend this company."
"Celeste answered the phone and was delightful. Fit in Jason's schedule the next day. The issue with my ice maker was pretty straightforward so may have not challenged him too much but I appreciated his professionalism."
"This company is awesome. I would highly recommend them. Good companies that are honest and trustworthy are hard to find. I greatly appreciate what they did in the repair. Thanks Jason."
Kolpak Walk-In Repair: Temperature, Doors, Coils, and Drainage
Most Kolpak service calls in Brentwood come down to the same handful of symptoms: a walk-in that will not pull temperature, a door that no longer seals, a KEC evaporator coil frozen over, water leaking out of the box, a KCO condensing unit short cycling outside, or interior panel damage from a forklift or pallet jack. Below is a plain look at what each symptom usually means, the common causes our technicians check first, and how we typically resolve it on site.
Walk-In Cooler or Freezer Warming Up
The box temperature is climbing, product is softening, or the digital thermometer is reading well above the setpoint.
Common causes:
- Failed evaporator fan motor on the KEC coil
- Low refrigerant charge from a leak in the line set
- Failed contactor or compressor on the KCO condensing unit
- Torn door gasket letting warm air pour into the box
We verify box and coil temperatures, inspect the gasket and sweep, leak check the system, and measure suction and discharge pressures before recommending a repair.
Door Will Not Close or Seal Properly
The walk-in door swings open on its own, drags on the threshold, or leaves a visible gap when closed.
Common causes:
- Worn or torn perimeter gasket no longer compressing against the frame
- Failed cam-lift hinges that no longer self-close the door
- Sagging door from a broken or loose hinge bracket
- Damaged or missing door sweep at the bottom edge
We inspect the hinges and closer, replace the gasket and sweep, and adjust or rebuild the door so it seals to the frame on all four sides.
Ice Build-Up on the Floor or Walls
Ice forms on the floor inside a freezer, around the door, or on the panel joints inside the box.
Common causes:
- Failed door heater wire on a freezer door frame
- Failed evaporator defrost heater or termination sensor
- Air infiltration from a torn gasket or unsealed panel joint
- Drain line freezing inside the floor and backing meltwater into the box
We test the door and drain line heaters, run a forced defrost, inspect the panel joints, and reseal or replace gaskets and components as needed.
KEC Evaporator Coil Frozen Over
A solid sheet of ice covers the evaporator and airflow into the box has dropped off.
Common causes:
- Failed defrost heater on a low temperature KEC evaporator
- Defrost termination thermostat reading wrong temperature
- Defrost timer or controller not initiating defrost on schedule
- Failed drain pan heater allowing condensate to refreeze on the coil
We run a manual defrost, test heaters and termination sensors against a meter, and confirm the defrost schedule and timer settings before condemning parts.
Water Leaking from the Walk-In
Water pools inside the box, runs out under the door, or drips from the unit cooler.
Common causes:
- Clogged condensate drain pan or drain line
- Failed drain line heat tape allowing the line to freeze
- Cracked drain pan in the KEC evaporator
- Improperly pitched drain line that backs up under load
We trace the water back to its source, clear and flush the drain, test the heat tape, and confirm the line slopes to the floor drain so the leak does not return.
Damaged Wall or Floor Panel
A forklift, pallet jack, or hand truck has dented or punctured a wall or floor panel.
Common causes:
- Impact damage from material handling equipment
- Floor panel insulation crushed under repeated heavy loads
- Corner protection missing or torn loose
- Water infiltration into the panel core from a damaged skin
We assess the damage, recommend repair versus panel replacement, and replace gaskets and trim so the cold envelope stays sealed.
Kolpak Walk-In Repair FAQs
Answers to the questions homeowners and operators ask us most often, covering common Kolpak walk-in failures, service intervals, and how we work.
Why is my Kolpak walk-in not pulling temperature?
The most common causes are a torn door gasket leaking warm air into the box, a failed evaporator fan motor on the KEC coil, a low refrigerant charge from a slow leak in the line set, or a failed contactor or compressor on the KCO condensing unit outside. On a freezer, a stuck defrost can also leave the evaporator iced over and choke off airflow. We pressure check the system and verify defrost is cycling correctly before changing parts.
How long should a Kolpak walk-in last?
The Kolpak Polar Pak box itself typically lasts 20 to 30 years with normal use, since the panels are urethane filled and the skins hold up well indoors. The KCO condensing unit is usually a 12 to 20 year part, and the KEC evaporator fan motors and defrost heaters are typically replaced every 5 to 10 years on a 24/7 box. Doors, gaskets, and sweeps are wear items and should be expected to need service.
Can you replace the door, gasket, or hinges on a Kolpak walk-in?
Yes. We replace Kolpak doors, perimeter gaskets, cam-lift hinges, door closers, sweeps, heater wires, and interior and exterior trim. On older boxes where the original Kolpak part is no longer available, we use the closest matching aftermarket part that fits the existing frame so the door seals correctly.
How often should a Kolpak walk-in be serviced?
Twice a year is the minimum for a commercial Kolpak walk-in. Service should include cleaning the condenser, verifying refrigerant charge, testing defrost components, inspecting door gaskets and sweeps, checking drain lines and heat tape, and reviewing temperatures against the setpoint. Restaurants with heavy door traffic should be on a quarterly schedule.
Does Gold Coast Refrigeration Service work on all undefined models?
Yes. We service Kolpak Polar Pak walk-in coolers and freezers in indoor, outdoor, and quick-ship configurations, KCO condensing units, KEC evaporator coils, replacement doors, hinges, gaskets and hardware, and floor and wall panel systems. We carry the most common fan motors, contactors, heaters, and door parts on the truck.
Is Gold Coast Refrigeration Service licensed and insured?
Yes. Gold Coast Refrigeration Service holds a California C38 Refrigeration Contractor License (#1122301), carries full liability insurance, and is a member of the United Appliance Servicers Association. You can verify our license directly at the California Bureau of Electronic and Appliance Repair website.
How quickly can Gold Coast Refrigeration Service come out for a undefined repair in Brentwood?
We offer prompt scheduling throughout Brentwood and the surrounding Contra Costa County area. In most cases we can schedule a diagnostic visit within one to two business days. If your equipment is down at a restaurant or other commercial location, call us directly and we will do everything we can to get a technician to you as quickly as possible.
Do you offer a warranty on undefined repairs?
Yes. All repairs completed by Gold Coast Refrigeration Service are backed by a parts and labor warranty. We stand behind our work and will return to resolve any issue related to the original repair at no additional charge within the warranty period.
What areas does Gold Coast Refrigeration Service cover?
We serve Brentwood, Antioch, Oakley, Discovery Bay, Knightsen, Bethel Island, Pittsburg, Bay Point, and Clayton. Call us to confirm service availability in your specific location.