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Plumbing · Spokane and North Idaho

Mobile home plumbing in Spokane Valley, WA

Leaks in the belly, frozen lines under the floor and water heaters approved for manufactured homes, by plumbers who have worked on them here since 1967.

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Mobile home prices
Manufactured homes
Starting prices
  • Minor water leak searchFrom $152
  • Thaw a frozen pipeFrom $255
  • Pressure regulator, replacedFrom $585
  • Approved water heater, 40 galFrom $4,945
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When a job needs a second person under the home, the helper’s time is a line on your price.
From$152Minor water leak search
From$255Thaw a frozen pipe
From$4,945Approved 40-gallon water heater
1967On manufactured homes since

What is included

What we do on manufactured homes.

  • Leak findingPressure testing to locate the leak, then a small opening in the underbelly at that spot.
  • Frozen linesBelly and crawl space lines thawed, and split pipe repaired.
  • Approved water heatersWater heaters approved for manufactured homes, often with sealed combustion and outside venting.
  • Water heater closetsA damaged floor under the heater replaced, and the compartment lined with drywall.
  • RepipingOld galvanized, copper or failing supply lines replaced, routed to open as little as possible.
  • Park connectionsIn a park, we find where the park’s pipe ends and yours begins before we start.
Gold Seal Plumbing service truck wrapped with the Spokane skyline
Serving Spokane and North Idaho since 1967

Starting prices

Mobile home plumbing prices.

Starting prices for the work we do most on manufactured homes. Club members pay 10% less.

Helper, when the job needs one
A line on the price
Travel to outlying towns
$30 to $180
Mobile home plumbing starting prices · Gold Seal flat-rate book, 2026
ServiceWhat it coversStarting at
Minor water leak search
Water lines
 Find a leak on the water supply.
From$152
Members from $137
Get a quote →
Thaw a frozen pipe
Heat gun
 Thaw a frozen line we can reach.
From$255
Members from $230
Get a quote →
Thaw a frozen pipe
Electric thaw machine
 Thaw a longer or hidden frozen line.
From$511
Members from $459
Get a quote →
Pressure regulator
Replace, 3/4 inch
 Replace a standard pressure reducing valve.
From$585
Members from $527
Get a quote →
Floor under the water heater
Replacement
 Replace a damaged floor under the water heater.
From$688
Members from $619
Get a quote →
Crawl space leak repair
Water pipe
 Repair a water line leak in a crawl space.
From$1,334
Members from $1,200
Get a quote →
Water heater compartment
Drywall
 Line the inside of the water heater compartment with drywall.
From$1,694
Members from $1,524
Get a quote →
Mobile home water heater
40 gallon, approved
 A water heater approved for manufactured homes.
From$4,945
Members from $4,451
Get a quote →

Repiping a manufactured home is priced on site once we see the access. Member prices are for Quality Service Club members. Starting prices from our 2026 pricebook. A real person confirms your price before anything is scheduled.

Know the signs

Signs of trouble under the home.

Most mobile home plumbing runs in the belly, out of sight. These are the clues.

A jump in the water bill

Often the first sign of a leak in the belly.

Soft ground or a sagging belly

Water collecting under the home, or wet insulation pulling the underbelly down.

Low pressure everywhere

A failing pressure regulator, corroded supply lines or a leak.

Damaged skirting

Gaps in the skirting or a torn underbelly let cold air reach the pipes.

How it works

Locate. Open small. Repair.

We find the problem first, so the opening in the belly stays small.

  1. 01

    Locate

    Pressure testing points to where the leak is.

  2. 02

    Open small

    We open the underbelly at that spot, not along the whole run.

  3. 03

    Repair

    The pipe is repaired at an upfront price and the opening closed.

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Questions

Mobile home plumbing, answered.

Answers from licensed plumbers. Still unsure? Call (509) 535-5946, 24 hours a day.

Do you work on mobile and manufactured homes?
Yes. Gold Seal has worked on manufactured homes around Spokane since 1967: leaks in the belly, frozen lines, repipes and approved water heaters. A minor water leak search starts from $152.
Why do mobile home pipes freeze so easily?
Much of the plumbing runs in the belly of the home, under the floor and outside the heated space, protected only by underbelly insulation and skirting. When the insulation sags or the skirting is damaged, cold air reaches the pipes. Intact skirting, a repaired underbelly and heat tape are the defenses.
Can I put a regular water heater in a mobile home?
No. Manufactured homes need a water heater approved for that use, often in a small closet with sealed combustion and outside venting. A standard heater isn’t a safe substitute. An approved 40-gallon water heater starts from $4,945 at Gold Seal.
How do you find a leak under a mobile home?
By pressure testing first, then opening the underbelly at the spot the test points to. Watch for a rising water bill, soft ground or a sagging belly, and the sound of running water with everything off.
Can you work on a home in a mobile home park?
Yes. In a park, part of the pipe may belong to the park. We find where the park’s responsibility ends and yours begins before starting, so you don’t pay to repair something the park owns.

Membership

What members get.

Priority scheduling for emergencies, 10% off services and materials, no minor diagnostic fee, a yearly plumbing and drain safety inspection and shut-off tags on your main water valve and water heater.

Members vs non-members →

Quality Service Club

Members save
For every home and business we serve
$149first year

Plus tax. Then $95 a year when you renew.

  • Priority scheduling for emergencies
  • 10% off services and materials
  • No minor diagnostic fee
  • A yearly plumbing and drain safety inspection
  • Shut-off tags on your main water valve and water heater
Join the Quality Service Club Everything it includes →

Related services

The same company handles every pipe on the property, from the water meter to the sewer main.

From $255Frozen pipes & winterizingThawed fast, and kept from freezingPrices and details → From $152Leak detectionFound by testing, not by tearing out wallsPrices and details → From $89Water heatersTank, tankless and heat pumpPrices and details → From $255Repiping & pipe repairWater and drain lines, a section or the whole housePrices and details →

Trouble under the home? Call plumbers who know manufactured homes.

Mobile and manufactured home plumbing across Spokane and North Idaho.

Call 24/7 (509) 535-5946
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