Cold Line Refrigeration Service — (904) 604-7755 # About | Independent Refrigeration Service Company Cold Line is an independent refrigeration service company in Jacksonville and St. Johns County. Refrigeration only, EPA 608 technicians, written estimates. Source: https://firstcoastsubzero.com/about/ --- Setpoints 38°F Fresh food 5°F Ice production 0°F Freezer About # An independent refrigeration company, and nothing else Cold Line Refrigeration Service repairs built-in and integrated refrigeration in Northeast Florida. We are independent. We are not authorized by any manufacturer, we do not claim to be, and we think the distinction is worth explaining rather than hiding. ![A repair technician in a plain work polo kneeling on a kitchen floor beside an open built-in refrigerator.](https://firstcoastsubzero.com/img/subzero-repair-07.webp) No uniform with a manufacturer’s name on it, and no manufacturer’s dispatch board either. ## What independent means here It means we buy parts, we set our own prices, and we answer to the person who owns the refrigerator. It also means we are outside the manufacturer's factory service programme, which is closed and publicly searchable. Any company can tell you which side of that line it is on. We are telling you plainly: we are on the independent side. The practical consequence is usually in your favour. An independent shop can work on a cabinet of any age, quote a repair the factory network would decline as uneconomic, and source a manufacturer-covered sealed-system part while charging you only for the labor. That last one is worth real money and is covered on the [warranty page](https://firstcoastsubzero.com/warranty/). ## Refrigeration only Refrigeration only: built-in and integrated columns, freezers, wine storage, undercounter units and ice makers. We do not repair cooking equipment. Sub-Zero builds no ranges and no cooktops, and a company that offers to fix them is telling you something about how carefully it reads its own website. Staying inside one category is a deliberate choice. Two independent sealed systems, two evaporators, a defrost circuit per side, an ice system with its own fill valve and mold, and a wine cabinet with an entirely different humidity target: that is enough to know properly. ## How we work Both compartments are read against both setpoints before anything is touched. The condenser is located for that specific series rather than assumed. Any stored service code is recorded as found. The failing sealed system is identified before a component is condemned. Then a written estimate, and only then do parts get ordered. $80 flat diagnostic, credited toward the repair. Written estimate before any part is ordered or any work begins. Genuine OEM parts. No aftermarket substitutions on sealed-system or control components. EPA Section 608 certified technicians — the federal requirement to open a sealed refrigeration system. Opening a sealed refrigeration system without it is a federal violation, not a technicality. Licensed and insured for in-home appliance service. ## What we will not do We do not publish control-board part numbers as definitive, because board fit is serial-dependent and a wrong board is an expensive way to learn that. We do not quote a figure for anything we cannot source, and where a number is not published for an address we print nothing rather than estimate. And we do not claim a relationship with a manufacturer that we do not have. The [customer reviews](https://firstcoastsubzero.com/reviews/) we publish are printed in full, the unflattering ones included, and the average shown is the arithmetic mean of them. ## Where we work 40 miles by road from Fruit Cove and St. Johns County. Drive distance, not straight-line radius. Published coverage includes Jacksonville, Mandarin, Nocatee, Ponte Vedra Beach, St. Augustine, World Golf Village, Orange Park, Fleming Island, the Beaches. Full detail, with road distances and the local conditions we plan for in each area, is on the [service area index](https://firstcoastsubzero.com/areas/). Company record - Legal name: Cold Line Refrigeration Service - Status: Independent service company - Scope: Refrigeration only: built-in and integrated columns, freezers, wine storage, undercounter units and ice makers. - Location: Jacksonville, FL - Hours: Mon–Fri 8am–6pm · Sat 9am–4pm · Sun closed - Diagnostic: $80 flat diagnostic, credited toward the repair. - Our warranty: 90 days labor, 365 days parts, genuine OEM components. - Credentials: EPA Section 608 certified technicians — the federal requirement to open a sealed refrigeration system. What we repair - [Built-in refrigerator](https://firstcoastsubzero.com/repairs/built-in-refrigerator/) - [Freezer column](https://firstcoastsubzero.com/repairs/freezer-column/) - [Wine storage](https://firstcoastsubzero.com/repairs/wine-storage/) - [Ice maker](https://firstcoastsubzero.com/repairs/ice-maker/) - [Undercounter](https://firstcoastsubzero.com/repairs/undercounter/) - [Refrigerator drawers](https://firstcoastsubzero.com/repairs/refrigerator-drawers/) Service notes - [Two sealed systems, not one](https://firstcoastsubzero.com/notes/dual-refrigeration/) - [Condenser cleaning, and the 48°F rule](https://firstcoastsubzero.com/notes/condenser-cleaning/) - [EC50, EC40 and EE — read them, do not clear them](https://firstcoastsubzero.com/notes/service-codes/) - [The drain is frozen, not clogged](https://firstcoastsubzero.com/notes/frozen-drain-tube/) - [Why an ice maker stops, in the order we check it](https://firstcoastsubzero.com/notes/ice-maker-diagnosis/) Statement of independence ## Read this once and it will not need repeating. We hold no appointment from any manufacturer and claim none. The affiliation statement is printed in full in the footer of every page on this site. Manufacturer names and model numbers appear throughout this site for one reason: to identify which appliances we service. No manufacturer logo, brand typeface or brand colour scheme is used anywhere on it. Independent service company ## Book a diagnostic $80 flat diagnostic, credited toward the repair. Written estimate before any part is ordered or any work begins. Mon–Fri 8am–6pm · Sat 9am–4pm · Sun closed. Scheduled appointments only. No after-hours or emergency service. [Call (904) 604-7755](tel:+19046047755) [Book online](https://nexfield.pro/crm/book?u=44) [Contact](https://firstcoastsubzero.com/contact/) 40 miles by road from Fruit Cove and St. Johns County. Drive distance, not straight-line radius. 90 days labor, 365 days parts, genuine OEM components. EPA Section 608 certified technicians — the federal requirement to open a sealed refrigeration system.