Supply lines, pumps, fixtures, drains and hidden leaks
RV Plumbing Repair
Water under the sink, a pump that will not stop cycling, a wet floor with no obvious source. We find the leak and fix it before it ruins the floor.
RV Plumbing Repair detailsProtect the plumbing before the first freeze
RV Winterization Service in Massachusetts & Rhode Island
A New England freeze will split fittings, crack the water heater and destroy the pump. We winterize the RV where it is parked and bring it back to life in spring.
Mobile service from New Bedford across South Coast MA, Plymouth County, the Upper Cape and nearby RI. $175 per hour · $3.50 per mile from New Bedford, one way ($50 minimum).
Freeze damage is the most avoidable repair we do. Every spring we replace fittings, pumps and water heaters that a one-visit winterization would have saved. We come to the RV, bypass the water heater, drain the tanks and low points, and run RV antifreeze through every fixture, including the toilet, outside shower and washer connections.
In spring we flush the system, check every fixture for leaks, and confirm the water heater and pump are running before you head to the campground.
Problems we fix
- Preparing an RV for freezing weather at home, a seasonal site or a storage yard
- Unsure about bypass valves, low-point drains or the outside shower
- Spring de-winterization, flushing and system startup
- Leaks discovered on the first fill of the season
- Snowbird and seasonal owners who need the RV handled while they are away
What the work includes
- Drain fresh, gray and black tanks and low points
- Water heater bypass and drain
- RV antifreeze through every fixture, toilet, shower, outside shower and ice maker or washer lines
- Roof and seal inspection while we are there
- Spring flush, sanitize on request, pressure test and leak check
- Report of anything that needs attention before the season
Good to know
Winterization scope depends on your equipment. Washers, ice makers, residential refrigerators and water filtration systems need extra steps. Tell us what the RV has when you book.
Why winterizing matters more here
The South Coast is coastal, but it still sees dozens of nights below freezing every winter and a few stretches near zero; Plymouth County and the inland towns freeze earlier and harder. Water left in a low point, a pump head or a water heater tank expands when it freezes and splits whatever is holding it. The failures do not show up until you fill the system in April, and by then the fittings have been leaking into the floor for the first fill of the season. One hour of winterization is the cheapest insurance an RV owner in Massachusetts or Rhode Island can buy.
Our winterization checklist
Dump and flush the black and gray tanks and drain the fresh tank. Open the low-point drains. Turn off and cool the water heater, relieve the pressure, drain it and set the bypass, installing a bypass if the RV never had one. Remove or bypass inline water filters. Pump RV antifreeze through the system until it runs pink at every fixture: kitchen and bath faucets on both hot and cold, the shower, the toilet valve, the outside shower, the black-tank flush port and the low points, plus the ice maker, residential refrigerator line, washer, dishwasher or tankless heater when the RV has them. Pour antifreeze into every P-trap and the toilet bowl. Clear the city-water inlet check valve. Then we walk the roof and seals while we are there, because that is the other thing a New England winter destroys.
Antifreeze or compressed air?
Blowing the lines out with air is faster and leaves no taste, but air alone leaves water in valves, pump heads, check valves and toilet fill valves, and those are exactly the parts that split. We use air where it helps clear the lines and then run RV antifreeze through the entire system so nothing is left to freeze. Antifreeze is cheap; a pump and a water heater are not.
What gets missed, and what it costs in spring
The outside shower, the black-tank flush anti-siphon valve, the water heater check valve, ice maker and washer lines, inline filters and tankless heaters are the parts that get skipped on a rushed winterization, and every one of them is a spring leak. We repair the results every April: split fittings, cracked toilet valves, pumps that run and never build pressure, water heater tanks weeping from a crack. Each is a couple hundred dollars or more, and there are usually several.
Spring de-winterization
We flush the antifreeze from the system, restore the water heater bypass and reinstall the anode and filters, fill and pressure-test, check every fixture and connection for leaks, and sanitize the fresh system on request. Anything that split over the winter gets found and fixed on the same visit, before you are at a campground with a wet floor.
What it costs
Winterization is billed at $175 per hour plus antifreeze and travel; most RVs take about an hour. Add a roof and seal check to the same visit and skip a second trip.
Full rates →Common questions about RV winterization & de-winterization
When should I winterize my RV in Massachusetts?
Before the first hard freeze, which on the South Coast is usually late October to mid-November. Do not wait for the forecast; book in October.
Blow-out or antifreeze?
We use RV antifreeze through the whole system, with compressed air where it helps. Air alone leaves water in low spots and traps; antifreeze does not.
Can you winterize at my storage lot?
Yes. We winterize at storage yards, seasonal campgrounds and driveways across South Coast Massachusetts and nearby Rhode Island.
What does de-winterization include?
Flushing the antifreeze, checking every fixture and connection for leaks, restoring the water heater bypass, and confirming the pump and water heater work. We sanitize the fresh system on request.
How much does RV winterization cost near New Bedford?
Labor is $175 per hour with a one-hour minimum, plus antifreeze and $3.50 per mile travel. Most travel trailers and fifth wheels are done in about an hour; RVs with washers, ice makers, residential refrigerators or tankless heaters take longer and are quoted accordingly.
When should I winterize my RV in Massachusetts?
Before the first hard freeze, which on the South Coast is usually late October to mid-November and earlier inland. Do not wait for the forecast; book in October, because the last two weeks before campgrounds close fill first.
Do you winterize RVs at campgrounds before they close?
Yes. Seasonal sites in Wareham, Carver, Plymouth, Westport and the Cape are a large part of our October schedule.
Do I need to be there, or dump my tanks first?
You do not need to be there if we have access. Tanks should be dumped before the visit when possible; if they cannot be, tell us when you book.
Can I leave my RV plugged in with a heater instead of winterizing?
One power outage on a cold night and you own a new water heater. Winterize it.
Does an RV stored indoors need winterizing?
If the building is unheated, yes. Most storage buildings on the South Coast drop below freezing for weeks at a time.
What if it already froze?
Call us. We thaw safely, find every split and repair them, then winterize properly so the rest of the winter does no more damage.
Related services
No hot water, leaks, bypass and control faults
RV Water Heater Repair
No hot water, a leaking tank, or a heater that only works on one mode. We diagnose elements, thermostats, boards, igniters and bypass valves and repair or replace what failed.
RV Water Heater Repair detailsSeams, vents, skylights, edges and penetrations
RV Roof Resealing
Aged sealant is the number-one cause of RV roof leaks. We reseal every seam, vent, skylight, edge and penetration with the right product for your roof, before water gets in.
RV Roof Resealing detailsRead before you call
RV Winterization & De-Winterization near you
We provide RV winterization & de-winterization throughout our service area, including:
New Bedford, MAAbout 2 miles from our New Bedford baseDartmouth, MAAbout 3 miles from our New Bedford baseFairhaven, MAAbout 3 miles from our New Bedford baseWestport, MAAbout 11 miles from our New Bedford baseFall River, MAAbout 16 miles from our New Bedford baseWareham, MAAbout 19 miles from our New Bedford basePlymouth, MAAbout 34 miles from our New Bedford baseCarver, MAAbout 28 miles from our New Bedford baseMiddleborough, MAAbout 23 miles from our New Bedford baseBourne, MAAbout 28 miles from our New Bedford base