Stress Cracks
Common from hull flexing and age. Often appear as fine cracks in the gelcoat.
Learn More about Stress Crack Repair
Hull Crack Repair•Tampa Bay, Florida
Fiberglass Hull Crack Repair That Restores Strength.
Repair stress cracks, impact cracks, spider cracks and damaged fiberglass before water intrusion turns a small problem into a structural repair.
- Serving Tampa BayLargo • Pinellas County
- 50+ YearsExperience
- Mobile & Shop ServiceWe Come to You
- Trusted by BoatersAcross Florida
Understanding Hull Cracks, Florida
Hull Crack Repair for the Damage You Can See — and What’s Beneath It.
Fiberglass hull cracks can be cosmetic or structural. They’re often caused by impact, repeated flexing, stress, previous repairs, water intrusion or laminate failure. Our team inspects the entire area to find the root cause and repair it correctly — not just cover it up.
Common Hull Cracks We Repair
Spider Cracks
Web-like cracks in the gelcoat from impact or repeated stress.
Spider cracks usually stay in the gelcoat, but they’re a sign that something is flexing or took a hit, often around a fitting, a cleat or an old impact point. We sound the area to rule out laminate damage, grind the cracks out, add reinforcement where it flexes, then fair, color-match, wet sand and polish.
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Impact Cracks
Caused by collision, grounding or debris. Can damage multiple fiberglass layers.
Learn More about Impact & Collision Damage
Deep Hull Cracks
Extend into the laminate and require structural repair to restore strength.
A crack that flexes when pressed, weeps water or follows a stress line such as a chine, keel or bulkhead is usually more than skin deep. We grind and taper the area back to sound fiberglass, rebuild the laminate with marine-grade cloth and resin, then fair it, gelcoat it to your color, wet sand and polish.
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Keel & Bottom Cracks
High-stress areas from groundings or trailer damage. Require proper laminate repair.
Learn More about Keel & Bottom Repair
Cracks Around Fittings & Through-Hull Areas
Common from loose fittings, movement or stress. We repair and reinforce the area.
Through-hulls, cleats and other fittings concentrate load in a small spot, and once a fitting works loose, the fiberglass around it cracks and water can follow the fastener holes into the laminate or core. We remove the fitting, grind out the cracked glass, add reinforcement around the opening, and re-bed the fitting before finishing.
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Our Hull Crack Repair Process
Built Right. Step by Step.
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Inspect & Diagnose
We evaluate the crack, determine the cause, and identify whether it’s cosmetic or structural.
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Remove Damaged Material
Grind and taper the area to sound fiberglass for a proper bond.
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Rebuild the Laminate
Restore strength using marine-grade fiberglass fabric and resin.
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Fair, Gelcoat & Finish
Fair the repair, color match the gelcoat, wet sand and polish for a seamless, like-new finish.
Common Cracks Shouldn’t Be Ignored
Small Cracks Can Lead
to Big Problems.
A hull crack isn’t just a cosmetic issue. Water intrusion, repeated flexing and impact damage can quickly turn a minor crack into a major structural repair.
- Water IntrusionAllows water into the laminate and core, leading to rot, delamination and long-term damage.
- Structural WeakeningReduces the hull’s strength and can compromise safety over time.
- DelaminationWater and movement can separate fiberglass layers, making repairs more extensive.
- Damage SpreadsCracks rarely stay the same size. Repeated stress and flexing can cause the damage to grow.
From Cracked Fiberglass to a Finished Hull
Real repairs. Real results. Here are a few examples of hull crack repairs we’ve completed for boaters across Tampa Bay.
Stress Crack Repair
Gelcoat and laminate repair with color matching.
Impact Damage Repair
Rebuilt laminate and finished to a like-new appearance.
Keel & Bottom Crack Repair
Structural repair with marine-grade materials.
What Does Hull Crack Repair Involve?
Our fiberglass hull crack repair process includes a thorough inspection, removal of damaged material, and rebuilding the area with marine-grade fiberglass, resin and gelcoat. Depending on the severity, we may repair gelcoat-only cracks, reinforce the laminate, or complete a full structural repair. Every repair is finished with professional color matching, wet sanding and polishing for a seamless result.
- Fiberglass hull repair and laminate repair
- Gelcoat repair and professional color matching
- Repair of stress cracks, impact damage and spider cracks
- Structural hull crack repair for strength and safety
- Bottom and keel crack repairs
- Repairs around fittings, through-hulls and high-stress areas
When Is a Hull Crack Cosmetic — and When Is It Structural?
Cosmetic Crack
- Gelcoat-only surface crack
- Shallow and does not extend into the laminate
- No movement or soft spots
- Typically caused by age, UV exposure or minor impact
- Can be repaired with gelcoat and light sanding
Structural Crack
- Extends through the gelcoat and into the laminate
- May have soft or weak areas
- Often caused by impact, grounding or significant stress
- Can lead to water intrusion and delamination
- Requires fiberglass and structural laminate repair
When in doubt, have the area inspected before grinding or covering it.A professional inspection ensures the repair is done correctly and the problem doesn’t return.
Why Boaters Choose Captain Levi’s
Experience You Can Count On.
- 50+ Years ExperienceProven. Reliable. Local.
- Family Owned & OperatedReal People. Real Care.
- Marine-Grade MaterialsBuilt for Florida conditions.
- Mobile & Shop ServiceAt your dock or at our yard.
Serving the Tampa Bay Area
Hull Crack Repair Across Tampa Bay
Based in Largo, Florida, we proudly serve boaters throughout Pinellas County, Tampa Bay and surrounding areas. Our fiberglass repair services are available at our shop or through our fully mobile service.
- Largo
- Seminole
- Clearwater
- Dunedin
- St. Petersburg
- Indian Rocks Beach
- Tampa
- And surrounding areas
Frequently Asked Questions
Got Questions?
We’ve Got Answers.
Can you repair cracks in a fiberglass boat hull?
Yes. We repair everything from hairline gelcoat cracks to cracks that run through the laminate. Structural cracks are ground back to sound fiberglass, re-laminated with marine-grade cloth and resin, then faired and gelcoated.
How do I know if a hull crack is structural?
Cracks that flex when pressed, feel soft around the edges, leak, or follow a stress line such as a chine, keel or bulkhead are usually structural. The only sure way is to inspect and sound the area — we do that before quoting.
Can you repair spider cracks?
Yes. Spider cracks are usually in the gelcoat, but we check for the cause — often flex or an old impact — so the cracks don’t come straight back after the repair.
Will the repair be color matched?
Yes. Every repair is finished with gelcoat tinted to your hull, then wet sanded and polished so it blends with the surrounding finish.
Can you repair hull cracks at my dock?
Many can. Our mobile service handles most gelcoat and smaller laminate repairs at your dock or lift. Larger structural work is best done at our Largo yard.
How long does fiberglass hull crack repair take?
Cosmetic crack repairs often take one to three days. Structural repairs depend on the size of the area and cure times — we give you a timeline with the quote.
Have a Crack in Your Boat Hull?
Let Captain Levi’s inspect the damage and recommend the right repair.
CONTACT US
We’re Here to Help
Have a hull crack you want looked at, need a quote, or ready to schedule? Fill out the form or give us a call — we’ll get back to you as soon as possible. Your boat deserves the best, and we’re here to make it happen.
- 50+ Years ExperienceTrusted. Proven. Local.
- Mobile ServiceWe come to you.
- Family OwnedReal people. Real care.
- Tampa BayLargo, FL & surrounding areas.
Request a Free Quote
Tell us about your boat and the damage. We’ll get back to you quickly.