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  • Services
    • Marine Construction
    • Commercial Diving
    • Floating Structures
    • Emergency Response
    • Ships Husbandry
    • Dock Accessories
    • Mooring Buoys
    • Survey & Inspections
  • What Makes Us Different
  • Our Team
  • Online Bill Pay
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Floating Structures

Specialized Service for Floating Homes, Houseboats, and Boathouses

 Living or working on the water brings a unique lifestyle, and unique challenges. At Nemo Marine Group, we specialize in the construction, maintenance, and repair of floating homes, boathouses, and houseboats across Washington State. Whether you’re leveling a tilt, replacing floatation, or designing a brand new build from the waterline up, our team delivers skilled, code-compliant work with precision and care.

From structural framing to underwater anchoring, we handle the tough stuff - above and below the surface.

Our Floating Structure Services Include:

Floating Homes

 

Full-service repair, maintenance, upgrades, inspections, and new construction for floating residences.
 

Boathouses

 Structural repairs, retrofits, floatation adjustments, and seasonal maintenance for covered moorage systems. 

Houseboats

 Service and repair for all types of houseboats, including pontoon-style, barge-based, and custom builds 

Custom New Builds

 Partner with us on the design and build of your dream floating structure — from concept to completion. 

Maintenance

 Routine inspections, annual adjustments, and preventative maintenance to extend the life of your float system and structure. 

Repairs

 On-call repair services for structural damage, foam degradation, water intrusion, and flotation failures.

Foam & Log Removal

 Environmentally safe removal and disposal of deteriorated or waterlogged EPS flotation blocks, and logs.  

Floatation

 Replacement and installation of new flotation systems — from encapsulated foam blocks to sealed pontoons. 

Leveling

 Correction of listing and uneven floatation through weight balancing, flotation adjustment, or underwater shimming.

Underwater Bracing & Anchoring

 Installation or reinforcement of bracing and cross-members below the waterline to improve structural integrity.   Secure mooring and anchoring solutions tailored to your site’s depth, conditions, and vessel/load type. 

Structural Framing Repair

 Above and below deck repairs for wood, steel, or composite framing systems compromised by rot, corrosion, or impact.

Demolition and Remodels

 

Partial or full demo, remodel, and rebuild services for aging or damaged floating structures.

 

Why Choose Nemo Marine Group?

Washington State Coverage You Can Count On

 We know floating structures inside and out — and underwater. From DIT-trained divers to experienced marine contractors, our team blends commercial diving expertise with top-tier construction skill. We’re fully licensed, bonded, insured, and ready to tackle projects across the state with safety, speed, and professionalism. 

 

Based in Seattle, we proudly offer floating structure services statewide. Whether your boathouse is moored on Lake Union, the Columbia, or a quiet inlet on the Olympic Peninsula, our mobile team can be there & fast.

  Need repairs, maintenance, or a new build for your floating home or houseboat? Contact us for a quote or on-site evaluation. 

Start Your Project
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Nemo Marine Group LLC

PO BOX 821054 Kenmore WA 98028

(406) 600-7264

Copyright © 2025 Nemo Marine Group | Marine Construction & Diving WA - All Rights Reserved.

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