Maintenance and Inspection
Winterization: Cost, Hours and Process in Hacienda Heights
Winterization protects the water system from freeze damage: draining the fresh, hot and waste sides, bypassing the water heater, blowing the lines down and charging them with RV rated propylene glycol antifreeze, then protecting traps, pumps and exterior fixtures. In this region it is a trip service rather than a seasonal one.
What brings this in
- A trip planned to Big Bear, Mammoth, the Eastern Sierra or anywhere over about 5,000 feet in winter
- A coach stored in the high desert or at elevation rather than in the valley
- A previous winter where the coach sat with water in the lines
- Uncertainty about whether a prior owner ever winterized it
- A washer, dryer, ice maker or dishwasher that adds water circuits owners forget
- An exterior shower, flush wand or outdoor kitchen with its own supply line
- A residential style toilet with a supply line and a fill valve
- A water filter housing left charged with water over winter
This job, by the numbers
$250 to $750
1 to 4 hours
RV systems estimate, $150. Covers slide, awning, water, electrical and generator. Credited to an authorized repair.
Parts and assemblies we work with
Suburban, Dometic, Thetford, Camco, Lippert
Why this matters in a market that rarely freezes
Hacienda Heights does not need winterization for its own climate. The valley sees the occasional night near freezing and almost never a hard sustained freeze, and a coach parked at home is usually fine. That is exactly why this service gets skipped and why we see the damage.
The damage does not happen in Hacienda Heights. It happens when the coach goes east on SR-60 and then north, and spends three nights at 7,000 feet in February. A single night in the low twenties splits a PEX fitting, cracks a water pump head or ruptures a water heater tank, and the owner does not find out until spring when they pressurize the system and it rains inside the cabinet.
So we treat winterization as a trip service in this market rather than a calendar one. If the coach is going to elevation between November and April, it gets winterized, or it gets a plan for how the water system is going to be managed while it is up there. If it is staying in the valley all winter, we will tell you honestly that you probably do not need it, which is not a sentence most shops offer.
What a correct winterization actually covers
The parts owners handle themselves are the fresh tank drain and the low point drains. The parts that cause the damage are the ones that get missed, and there are more of them on a modern coach than on one built twenty years ago.
The water heater is bypassed rather than filled with antifreeze, because filling a six or ten gallon tank wastes several gallons of glycol and accomplishes nothing the bypass does not. Lines are blown down with regulated air before glycol goes in, because glycol pushed into a line still holding water gets diluted and loses its protection point. Then every fixture is run until glycol shows, in a deliberate order, so nothing gets skipped.
The list of what gets missed is long and specific: the exterior shower, the black tank flush wand, an outdoor kitchen supply, the ice maker line, a washer and dryer, a dishwasher, a residential toilet fill valve, the water filter housing, the pump strainer, and every P trap in the coach. Traps need glycol poured directly because blowing the lines does not empty them. On a fifth wheel with a washer and dryer prep and an outdoor kitchen, that is nine or ten separate circuits.
- Fresh, gray and black tanks drained, low point drains opened
- Water heater bypassed rather than filled, drain plug or anode removed
- Lines blown down with regulated air before glycol is introduced
- Every fixture run until glycol shows, in a fixed order
- Exterior shower, flush wand, outdoor kitchen and ice maker circuits included
- Washer, dryer, dishwasher and residential toilet circuits included where fitted
- Traps charged directly, pump strainer and filter housing drained
- Written record of what was done, so spring recommissioning matches
What freeze damage costs when it happens
A split PEX fitting behind a wall panel is not a plumbing repair, it is a plumbing repair plus a wall panel, plus whatever the water reached on the way down. A cracked water pump head is a part and an hour. A ruptured water heater tank is a replacement, and if it let go while the coach sat, the cabinet and the floor under it are usually involved.
The worst version is a line that splits inside the floor cavity or behind cabinetry and is not discovered until the system is pressurized months later. That is how a freeze becomes a subfloor job, and it is entirely preventable for the cost of one to four hours of labor and a few gallons of glycol.
The arithmetic is not close. Winterization sits at the bottom of the price range on this site. The repair it prevents can run into five figures once the structure is involved.
Scope
What this line item does not include
- We do not winterize at a customer location. The service needs air supply, a drain and a lift.
- Freeze damage already present is a repair, not a winterization. Split lines and cracked fittings are quoted separately.
Being explicit about the boundary is faster than discovering it at pickup. If the work you need sits outside this line item we will say so at intake and point you at the right one.
Questions
Winterization questions
Do I actually need to winterize in Southern California?
Not for a coach that stays in the valley all winter, and we will tell you that rather than sell you a service you do not need. You do need it if the coach goes to elevation between November and April. One night in the low twenties at Big Bear or Mammoth splits fittings, and the damage is usually found in spring when the system is pressurized.
What gets missed when winterization is done badly?
Almost always the circuits that are not in the bathroom: the exterior shower, the black tank flush wand, an outdoor kitchen supply, the ice maker line, a washer and dryer, a dishwasher, a residential toilet fill valve, the filter housing, the pump strainer, and the P traps, which need glycol poured directly because blowing lines does not empty them.
Why bypass the water heater instead of filling it?
Because filling a six or ten gallon tank with antifreeze wastes several gallons of glycol and protects nothing the bypass does not. The tank is drained and the anode or drain plug removed, the bypass valves are set, and the glycol goes only where it is needed. It also makes spring recommissioning faster and cleaner.
How long does it take and what does it cost?
One to four hours depending on how many water circuits the coach carries. A simple travel trailer is at the bottom of the band on this page. A fifth wheel with a washer and dryer prep, an outdoor kitchen, an ice maker and a residential toilet has nine or ten circuits and sits near the top. Most units are done the same day.
Related work
Often done at the same time
$250 to $900
De-Winterization and Spring Prep
Glycol flush, fresh water sanitizing, pressure test and appliance, battery and LP recommissioning after storage.
$250 to $900
Storage Preparation
Water, battery, LP, seal, tire and interior preparation for a coach going into extended storage.
$400 to $2,500
Annual Maintenance Service
Scheduled multi point service and inspection across seals, appliances, power, water, LP, slides and tires.
$285 to $800
Pre-Trip Inspection
Tires, slides, LP, power, lights, water, tow connections and loading checked before a long trip.
Get a firm number on winterization
The band on this page is honest, and the rv systems estimate at $150 turns it into a firm number. Covers slide, awning, water, electrical and generator. Credited to an authorized repair. We are 18.4 miles from Hacienda Heights.