How do we actually find the leak source in your RV?
Water doesn't always leak where you see the damage. It travels along framing, insulation, and utility chases before pooling or dripping. We use moisture meters, thermal imaging, and physical inspection to trace the path backward to the entry point. Common culprits: failed Dicor roof sealant, loose window frames, roof-mounted AC penetrations, plumbing line fractures in Atwood or Dometic systems, and slide-out seal failure on Schwintek or Lippert mechanisms. Once we pinpoint the source, we prevent reinfection before any interior work starts. This step costs nothing extra - it's how we quote you accurately.
We serviced a 2018 Forest River RV in Tampa where the customer noticed soft walls near the bathroom. They'd patched the roof themselves two years prior. Our moisture meter showed saturation running 18 inches up the exterior wall and back 6 feet into the floor joist. The entry wasn't the patch - it was a Dometic water heater vent boot that had separated. Without finding that, we'd have ripped out wet subflooring, replaced it, and watched it rot again in six months. That's why we don't estimate blind.
Our leak detection toolkit:
- Moisture meter readings at 12+ points
- Thermal imaging to show temperature loss zones
- Visual inspection of all roof penetrations
- Pressure testing on plumbing lines
- Seal inspection on windows and vents
- Documentation photos for your records
What does subflooring replacement actually involve?
Wet subflooring crumbles like a sponge and breeds mold. We remove the compromised sections - sometimes just the bathroom corner, sometimes half the RV floor depending on water travel. We replace it with marine-grade plywood or Hardiboard, seal all edges, and reinstall your flooring material (tile, linoleum, carpet) to factory spec. In a typical 32-foot RV, localized replacement runs 3 to 5 hours and costs $1,200 to $2,800. Full-floor jobs (rare but real) take 2 to 3 days and run $4,500 to $8,000. We quote flat - you know the total before we start.
A Jayco customer in Boise called after a toilet seal failure flooded the rear bedroom. The floor had soft spots the size of a dinner plate. We removed 12 linear feet of compromised subflooring from the bedroom and connecting hallway, replaced it with Hardiboard (won't rot like plywood), reinstalled their existing vinyl flooring, sealed everything, and treated the joist area. Total: $1,850 and a working floor that won't sag in six months. The dealer wanted $3,200 just for the parts and two-week wait.
Subflooring replacement scope:
- Remove water-logged sections completely
- Dry out framing and joists fully
- Install marine-grade or Hardiboard replacement
- Seal all edges and seams
- Reinstall flooring to match factory pattern
- Inspect and treat adjacent insulation
- Document completion with photos
Why do RV walls delaminate and how do we fix them?
RV walls are a sandwich: aluminum skin, adhesive, insulation, and interior panel. Water breaks that bond, foam absorbs moisture, adhesive fails, and the wall bubbles outward. You'll see separation near edges, corners, around windows, or along the floor line. We cut out the affected area, remove wet insulation, dry the underlying structure, install fresh foam (typically 1-inch closed-cell or fiberglass batts), reglue the interior panel, and match the finish. Typical small repair (2 to 4 feet of wall) runs $600 to $1,200. Larger sections scale proportionally.
A Winnebago owner in Jacksonville had a delaminated wall section running 6 feet along the slide-out - a Lippert mechanism. Water had been wicking in through the slide seal. We cut out the soft wall, dried the cavity, replaced the insulation, installed a new interior panel, and sealed the slide mechanism properly. Cost was $1,400 total. He said the dealer quoted him $2,900 and wanted the RV for a week.
Wall delamination repair steps:
- Cut out separation cleanly
- Remove all wet and delaminated foam
- Dry framing and underlying structure
- Install fresh insulation matching R-value
- Glue and clamp new interior panel
- Sand, prime, and paint to match
- Seal perimeter to prevent reentry
When do ceiling panels need replacement versus patching?
Stained panels can sometimes be sealed and painted. Soft panels need to go. If the substrate is solid but discolored, we clean, treat with mold inhibitor, prime, and paint - $200 to $400. If water has compromised the panel structure, we replace it. Dometic and Coleman-Mach roof AC units are notorious water leaks - the pan can clog, condensation backs up, and water seeps around the frame. We pull the damaged panel, verify the AC mounting is dry and resealed, install a matching replacement panel, and caulk everything. Cost runs $400 to $900 for a single panel, depending on RV ceiling type and your AC brand.
A Grand Design RV from Idaho had a water-stained ceiling around the bedroom AC. The owner thought interior-only paint would fix it. The substrate was soft - the panel was failing. We replaced the ceiling panel, pulled the Coleman-Mach unit, found the drain pan clogged, cleaned it, resealed the flange with Dicor, and reinstalled. $850 total. Without addressing the AC source, a new panel would've stained in three months.
Ceiling repair decision tree:
- Surface staining only - clean and paint
- Minor soft spots - localized panel removal and patch
- Full panel failure - complete replacement
- Verify roof penetration is sealed (Dicor)
- Check AC drain lines are clear
- Test for mold in framing above panel
- Paint or match vinyl finish
How serious is mold and mildew after water damage?
Mold isn't just ugly - it's a health hazard and a structural threat. After water damage, mold colonizes insulation, wood, and fabric within 24 to 48 hours in humid conditions. We use HEPA-vacuum extraction, apply EPA-approved mold inhibitor (not bleach - it doesn't penetrate), and ensure complete drying before sealing. For small affected areas (under 10 square feet), treatment runs $300 to $600. Larger infestations or heavy spore loads cost $800 to $1,500. We don't just mask the problem - we address the moisture source first, then remediate.
A Tiffin customer in South Florida ignored a slow roof leak for two months. By the time they called, mold was visible on ceiling panels and the wall behind the refrigerator. We found the leak, dried everything with commercial dehumidifiers, treated the affected framing with antifungal, replaced the ceiling panel, and sealed the roof. The whole job was $1,680 and two days. Waiting another month would've meant structural damage and a $5,000+ repair.
Mold remediation process:
- Identify all water-damaged areas with moisture meter
- HEPA-vacuum insulation and soft surfaces
- Apply EPA-approved antimicrobial treatment
- Run commercial dehumidifiers 48 to 72 hours
- Replace contaminated insulation if needed
- Verify moisture levels drop below 15 percent
- Seal treated areas to prevent recontamination
- Document process for your records
What's our response time and how much does the service actually cost?
In Florida and Idaho, we respond to emergencies in 2 to 4 hours. Outside those areas, our nationwide partner network handles it - usually within 24 hours. We quote flat rates by phone at (888) 787-3727 - you get a total price before we touch your RV. No surprises. Water damage jobs range $800 (small localized leak, patch and seal) to $12,000+ (multiple systems involved, extensive subflooring, mold, structural). Most common repairs - leak source ID, targeted subflooring, one wall section, ceiling panel, and mold treatment - run $2,200 to $3,800. We back all work with a 90-day workmanship warranty.
A Keystone customer called Monday morning about a water-damaged bedroom. We quoted $2,600 flat over the phone - subflooring in one corner, delaminated wall repair, ceiling panel replacement, and mold treatment. We showed up at 2 PM same day, completed the work by Wednesday afternoon. He paid $2,600 total. No hourly surprises, no "oh, we found more damage" bills, no come-backs. That's how we operate.
Typical pricing by scope:
- Leak source identification and sealing - $200 to $450
- Localized subflooring replacement - $1,200 to $2,800
- Wall delamination repair (small section) - $600 to $1,200
- Ceiling panel replacement - $400 to $900
- Mold remediation and treatment - $300 to $1,500
- Full multi-system job - $2,200 to $12,000
- 90-day workmanship warranty included