What are the benefits of extending a swim platform on my boat?

A swim platform extension gives you more usable space for swimming, boarding, relaxing and water sports. It makes getting in and out of the water easier and safer, and it adds comfort on board.

Can you repair cracks or soft spots on an existing swim platform?

On bolt-on platforms, yes: we repair cracks, delamination and soft spots with marine-grade materials and match the gelcoat. If the platform is molded into the hull, or the damage reaches the transom core, we refer the repair to a boatyard.

What materials do you use for swim platform extensions?

We build extensions from fiberglass over a high-density foam core, mount them on 316 stainless steel brackets with through-bolts, and finish them in color-matched gelcoat with non-skid, EVA foam or teak. Materials are chosen for your boat type and how you use the platform.

Is a swim platform extension safe for my boat’s transom?

Yes, when it is properly designed and installed. We check the transom where the brackets mount; if the transom core is wet or needs reinforcement, that work goes to a boatyard before we mount the extension.

Can you customize the size and shape of the swim platform?

Absolutely. We design custom swim platform extensions to match your boat’s layout, width, and intended use. Custom options include ladders, handrails, non-slip decking, and integrated steps.

How long does a swim platform repair or extension take?

Minor repairs often take 1–2 days, mostly for curing time. A custom extension usually takes several days, depending on the design, materials and curing time; we give you the expected timing with your written estimate.

Do you provide warranty on swim platform repairs and extensions?

Yes. Our workmanship is warranted for 90 days from the invoice date; materials and parts carry their manufacturer's warranty.

Professional marine technician polishing a newly repaired white fiberglass swim platform

Professional marine technician polishing a newly repaired white fiberglass swim platform (2)

Swim Platform Extension & Repair

Transform the stern of your boat into a private beach. We repair cracks and impact damage on bolt-on platforms, or build custom bolt-on extensions to give you more room to swim, board, and relax.

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$150 /hr

Labor estimate Quoted after inspection

Book sends us a ticket; nothing is charged online. Before any work you get a written estimate for labor, parts and the trip fee, and nothing is done without your OK.

Trip fee By distance, one way: $30 in San Pedro, $50 in Long Beach

San Pedro$30
Wilmington, Terminal Island$40
Long Beach: Shoreline, Rainbow Harbor$50
Long Beach Marina, Alamitos Bay$60
Redondo Beach$60
Seal Beach, Huntington Harbour$75
Marina del Rey$85
Newport Beach$110

Farther away: $25 plus $2.50 a mile, one way from our San Pedro shop. No trip fee when the boat comes to our shop, or for plan members. The work of a visit is at least $150; the trip fee is on top.

Registered in California: Breeze Marine Boat Service LLC, San Pedro
Where we work: At your slip from Marina del Rey to Newport Beach, or in our San Pedro shop
Questions first: (213) 693-0224 or submit a ticket

About this service

Upgrade Your Stern

Waterfront
Real Estate.

The swim platform is where the fun happens. We repair bolt-on swim platforms after impact damage and build bolt-on extensions to expand your deck space.

Impact Repair

Backed into a pylon? Dinghy hit the stern? On bolt-on platforms, we repair crushed corners, cracks and delamination and match the gelcoat. Damage that reaches the hull or the transom core goes to a boatyard.

Extensions

We fabricate custom fiberglass swim step extensions that bolt onto your existing hull, adding 18-30 inches of usable space for boarding, swimming or lounging.

Surface Refinish

Upgrade the look with a new factory-style non-skid pattern, or let us install marine-grade soft foam decking (EVA) or real teak.

Fabrication & Repair.

From template to finish.

Template

For a swim platform extension, we create a precise template of your transom curve for a close fit.

Layup

We build the platform using high-density foam cores and biaxial fiberglass for strength without heavy weight.

Mounting

We use heavy-duty 316 stainless steel brackets and through-bolts, bedded in marine sealant to keep water out of the transom.

Finish

The final surface is gelcoated, color-matched, and finished with non-skid to match your boat's existing deck.

Clean Integration.

Made to match your boat.

Extended swim platform installed on a cruiser stern

Cracked corner of a fiberglass swim platform prepared for repair

New non-skid texture on a repaired swim platform

Built to Last.

We use materials that withstand sun, salt, and foot traffic.

High-Density Core No Wood to Rot

316 Stainless Corrosion Resistant Hardware

ISO Gelcoat UV and Water Resistant

Common Questions

Is the extension strong enough to stand on?

Yes. Each extension is built and through-bolted for people boarding and normal swim-step use. If you want to carry a tender or jet ski, tell us first: that load needs its own design and may need transom reinforcement, which a boatyard does.

Can you match the non-skid pattern?

Yes. We take molds of your boat's existing diamond or stipple pattern and replicate it on the repair or extension area.

Expand Your Space.

Get the platform your boat deserves.

Get an Extension Quote

Marine Refinish Options for Your Swim Platform

Once a platform is repaired or extended, the surface gives it its finished look. A marine refinish on a swim platform has to stand up to sun, salt and constant foot traffic, so we offer three directions: a new factory-style non-skid pattern in color-matched gelcoat, marine-grade soft EVA foam decking, or real teak.

If you want the repair to blend in, we take a mold of your boat's existing diamond or stipple non-skid and replicate it on the new area. When you request a quote, send photos of the platform and any damage, mention how you plan to use the space (boarding, swimming, lounging, or carrying a tender or jet ski), and tell us which finish you are leaning toward.

Swim Platform Fabrication in Long Beach

Swim platform work is marine fabrication as much as repair: a template of your transom, a fiberglass layup over a high-density core, 316 stainless brackets and a color-matched gelcoat finish. The same steps apply whether we are rebuilding a cracked corner of a bolt-on platform or adding a full extension to a boat in Long Beach or a nearby harbor.