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RV Fiberglass and Delamination Repair in Zephyrhills

Florida is hard on fiberglass in a way most owners do not expect: the sun chalks the gelcoat, but it is the water that does the real damage. Rain finds every failed trim seal, humidity keeps the wall behind the skin wet for months, and the result is the bubbled sidewall we call delamination. We repair gelcoat cracks, crazing, small punctures, failed trim and seals, and localized delamination on site at your park lot, storage yard, or driveway across Zephyrhills and east Pasco County. Small repairs run $300 to $900; larger work is quoted after we look. Trip fee $75 to $150. Full ranges are on the pricing page.

Why sidewalls fail here

A laminated RV sidewall is a sandwich: a thin fiberglass skin glued to a foam or plywood core with an aluminum frame inside. It stays flat as long as the glue holds and the core stays dry. The way it fails in Florida:

  1. Sealant at a window, trim strip, corner molding, or roof edge cracks under the sun. Every one of those joints moves with daily thermal cycling.
  2. Rain gets in. From June through September a storm most afternoons is the pattern, and July alone averages more than six inches. Water runs down inside the skin.
  3. It never dries. Humidity above 90 percent every night from May into November means the core stays wet. Plywood swells and rots; the adhesive lets go.
  4. The skin bubbles. That is the delamination you see from the outside, usually below a window or along a lower corner, and usually a season after the sealant actually failed.

The owner is often not here for any of it. A rig on its lot at one of the 55+ parks along US 301 or County Road 54 from April to November has six months of rain against a failed seal with nobody looking. The delamination page explains how to tell whether yours is dry enough to inject.

Hurricane season adds impact. Hurricane Milton came ashore as a Category 3 near Siesta Key on the evening of October 9, 2024, and sent debris across this whole part of the state; the sidewall and cap damage from flying branches and awning hardware was still being sorted out when the winter residents arrived.

What we repair on site

Gelcoat cracks and crazing. Cracks are ground out to sound material, filled with matched gelcoat, cured, and sanded and polished back. Crazing over a wide area is assessed honestly: sometimes the right answer is a repair, sometimes it is a polish and a UV protectant, and sometimes it is nothing at all.

Small punctures and impact damage. Ladder strikes, oak branches, storm debris, and awning arm gouges. Repaired with glass and resin from behind where access allows, then finished from the front.

Trim, molding, and seal work. A surprising share of what looks like body damage is a trim strip whose sealant has failed, letting water behind the skin. Correcting that is often both the repair and the prevention, and it is the highest-value item on this page in this climate.

Localized delamination injection. Where a bubble is small, the core is dry or can be dried, and the water path above it has been sealed, adhesive injection and clamping genuinely restores the bond. We will tell you plainly if yours does not qualify.

Fiberglass cap and corner repairs, within reason and within what can be done outdoors in this weather. Resin does not like a 72-degree dew point, and we schedule this work for dry mornings.

What belongs in a body shop

We would rather lose the job than do it badly in a park lot:

  • Collision damage involving structure, framing, or alignment.
  • Full sidewall or roof skin replacement.
  • Anything requiring a paint booth for a full-panel refinish.
  • Delamination over large areas or with a wet, rotten core.

If your rig needs one of those, we will tell you from photographs, without charging a trip fee to deliver the news.

Pricing

JobTypical range
Trip fee$75 to $150
Labor$125 to $190/hr, one-hour minimum
Gelcoat crack repair, localized$300 to $900
Small puncture or impact repair$400 to $1,200
Trim and sealant correction$250 to $700
Window reseal$200 to $600
Delamination injection, small dry areaQuoted after assessment
Larger panel workQuoted after assessment

Fiberglass is the one area where we quote more jobs after looking than before, and that is deliberate: the extent of a crack and the moisture in the wall behind it are not things a photograph reliably shows. The number you approve is written, and it comes after a moisture reading, not a guess.

How a fiberglass call runs

Send photographs first, close and wide, and tell us where on the rig it is and how long it has been there. From those we can usually say whether it is our job or a body shop’s. On site, we probe the area, take a moisture reading of the core, trace the water path uphill to the seal that let it in, and write one number that covers the repair and the reseal, because fixing the bubble without fixing the seal is a repair you will pay for twice. Dry mornings are best; we schedule around the afternoon storms.

The prevention, since it is cheap

Keep the gelcoat waxed or treated with a UV protectant so it sheds water. Reseal windows and trim on a schedule rather than after a leak. And if the rig sits here through the summer without you, a spring seal inspection before you leave is the cheapest thing on this page. A roof reseal visit is a good moment to have the sidewall trim looked at, because the ladder and the trip are already paid for.

Where we work

On site across Zephyrhills, Dade City, Wesley Chapel, San Antonio, Land O’ Lakes, Lutz, and Plant City. Send photographs and we will tell you honestly whether it is our job. The repair cost calculator covers the rest of the rig.

Frequently Asked Questions

Can fiberglass repair really be done mobile?

A large share of it, yes. Gelcoat cracks, spider cracking, small punctures, trim and molding repairs, seal work, and localized delamination injection are all done at your site. What is not mobile work is collision damage, structural frame repair, and full skin replacement, which need a body shop. We say which one you have before quoting.

What does RV fiberglass repair cost?

Small gelcoat and crack repairs typically run $300 to $900 including the trip fee and labor. Larger panel work, delamination injection, and multi-day repairs are quoted after the assessment. The trip fee is $75 to $150 and labor runs $125 to $190 an hour.

What is the bubble in my sidewall?

Delamination. Water got behind the fiberglass skin, usually through failed sealant at a window, a trim strip, or a corner molding, and the glue holding the skin to the wall let go. In Florida humidity the wall behind it stays wet. Whether it can be injected and clamped or has gone too far depends on how wet and how big, which is what the assessment is for.

Will the repair match my rig's color?

Gelcoat repairs can be color-matched closely and blended, and on most rigs the result is a repair you have to look for. An exact invisible match on a sun-faded fifteen-year-old sidewall is not something anyone can honestly promise, because the surrounding gelcoat has changed color since the day it was made.

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