`Bathroom Remodeling in Orange County`

Looking for bathroom remodeling in Orange County? Coastline Harmony Builders delivers complete master and guest bathroom renovations, including custom showers, vanities, plumbing, tile, lighting, waterproofing, and final finishes.

Our Bathroom Remodeling Services

From reliable foundations to high-end finishes, we offer installations tailored to your design and budget.

Luxury Master Bathrooms

Complete transformations for your primary suite. We handle structural changes, custom tile work, freestanding tub installations, and seamless glass showers to create your private spa retreat.
See how we brought this vision to life in our recent luxury spa bathroom remodel in Costa Mesa.

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Guest Baths & Powder Rooms

We remodel guest bathrooms and powder rooms with new vanities, tile, lighting, plumbing fixtures, waterproofing, and durable finishes. Whether updating a compact space or creating a modern guest suite, we manage the project from demolition through final completion.

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Spa-Style Bathrooms, Custom Showers & Vanities

We create spa-style bathrooms with walk-in showers, custom and semi-custom vanities, upgraded lighting, plumbing, waterproofing, tile, and complete turnkey construction. Each project is tailored to the room, budget, and approved scope.
See an example of our custom floating vanity and storage integration in this warm modern bathroom remodel in Dana Point.
Planning a kitchen renovation or remodeling multiple areas of your home? Explore our Kitchen Remodeling in Orange County services or learn about our Whole Home Remodeling in Orange County solutions.

How Our Orange County Bathroom Remodel Works

Step 1 — Design & Technical Audit

We evaluate your existing space, plumbing infrastructure, and electrical layout to ensure your vision for a spa-like retreat is technically feasible and perfectly planned.

Step 2 — Permitting & MEP Prep

As a licensed Class B contractor, we handle all city permits and complex MEP work. Whether it’s relocating a drain for a freestanding tub or upgrading electrical, we do it safely and to code.

Step 3 — Waterproofing & Tile Work

We build a bulletproof foundation using advanced waterproofing systems. Our team then expertly installs custom tile, seamless glass showers, and premium semi-custom vanities with flawless geometry.

Step 4 – Fixtures, Finishes & Final Installation

The final phase involves installing luxury plumbing fixtures, statement lighting, and custom mirrors. We deliver a pristine, turnkey bathroom with zero-tolerance execution.

Why Homeowners Choose Coastline Harmony Builders

Licensed Authority & Compliance

As a licensed Class B General Contractor in California, we handle the entire regulatory landscape for you. From strict Orange County zoning and setbacks to Title 24 energy compliance, we ensure your project is 100% legal, permitted, and built to the highest safety standards.

True Turnkey Engineering

We don’t just remodel; we build. From complex plumbing relocations and advanced waterproofing systems to precision custom tile execution, our technical background ensures your spa retreat is built to last a lifetime.

Transparent Local Partnership

Based right here in OC, we pride ourselves on clear communication and fixed-price estimates. No hidden fees or “construction surprises”—just professional, scheduled execution from a local team that understands the Irvine and Newport Beach building landscape.

What Our Clients Say

    
 
 
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   Mira Mingalieva 
 
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely thrilled with our new kitchen! We were looking to update our house in Tustin and decided to go with a dark, modern kitchen design. The team at Coastline Harmony Builders did an amazing job from start to finish. The quality of the custom cabinets is top-notch, with amazing built-in storage and flawless integration of our appliances. Everything feels so premium and sleek. It’s hard to find a trustworthy general contractor, but these guys are the real deal. Highly recommend them for any home renovation!
  
 
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   Lexie 
 
 
 
 Trustindex verifies that the original source of the review is Google. Rafael and his team at Coastline Harmony Builders did an incredible job with our kitchen remodel in Irvine. We wanted a high-end look and they delivered perfectly—from the custom cabinet installation to the countertop and lighting coordination. They are very detail-oriented, professional, and kept everything on track. Highly recommend them if you’re looking for a reliable general contractor in Orange County!
  
 
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   Irina Borovleva 
 
 
 
 Trustindex verifies that the original source of the review is Google. We hired Coastline Harmony Builders for our kitchen remodel in Irvine, and we had a great experience from start to finish. Rafael helped us with the full process, including demolition, site preparation, cabinet installation, appliance panels, backsplash coordination, and the final finish details. We had a modern flat-panel cabinet system, and everything came out clean, aligned, and very high-end. What we appreciated most was the communication, organization, and how clean they kept the house during the remodel. It was clear that Rafael understands both the construction side and the precision needed for cabinet installation. Highly recommend Coastline Harmony Builders for anyone looking for a reliable kitchen remodeling contractor in Orange County.
  
 
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   Sasha Kadik 
 
 
 
 Trustindex verifies that the original source of the review is Google. Coastline Harmony Builders did an amazing job on our home renovation in LA. They completely refreshed our entire house, including a stunning bathroom remodel, but the highlight was definitely the kitchen. We wanted a high-end look, so we ordered IKEA SEKTION boxes and paired them with Semihandmade custom fronts. Rafael and his team handled the complex layout, panel integration, and custom hardware with incredible precision. It’s rare to find a General Contractor who has both the structural expertise for a whole-house refresh and the meticulous attention to detail required for European-style modular cabinetry. Highly recommend them!
  
 
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   Natalia Grechaniuk 
 
 
 
 Trustindex verifies that the original source of the review is Google. Coastline Harmony Builders did a fantastic job on our kitchen and bathroom remodel in Woodland Hills. We were really impressed with their project management and attention to detail. They kept the house super clean during the demo phase, and the final result with the new custom kitchen setup is exactly what we wanted. Great communication from start to finish. Highly recommend!
  
 
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   Анастасія Чорна 
 
 
 
 Trustindex verifies that the original source of the review is Google. Rafael and his team did an amazing job on our kitchen remodel in Huntington Beach. We ordered the BOXI cabinets by Semihandmade and really needed a solid GC to handle the whole project turnkey. Coastline Harmony Builders took care of everything for us, starting from the demo all the way to the final flawless cabinet installation. Super clean, professional, and zero stress. Highly recommend!
  
 
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   Marina Ilyushina 
 
 
 
 Trustindex verifies that the original source of the review is Google. We used Coastline Harmony Builders for our whole house remodel in Mission Viejo and honestly, we couldn’t be happier. We needed a solid general contractor who could handle everything from knocking down walls to giving us our dream kitchen, and they totally delivered. They took care of all the city permits, kept the project on schedule, and the attention to detail is just amazing. The house feels completely brand new. Highly recommend these guys if you have a big project!
  
 
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   Kate Ivanova 
 
 
 
 Trustindex verifies that the original source of the review is Google. We hired Coastline Harmony Builders for a garage conversion project in Newport Beach. Rafael is a highly professional general contractor who managed everything perfectly from start to finish. If you’re looking for a reliable ADU builder in Orange County, look no further!
  
 
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   Ryma Rashytava 
 
 
 
 Trustindex verifies that the original source of the review is Google. Rafael and his team did an awesome job on our bathroom remodel in Irvine. We had an old tub converted into a walk in shower and it looks fantastic. They were professional, kept the house clean, and finished right on time. Highly recommend Coastline Harmony Builders!
  
 
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   Natalia Borzenko 
 
 
 
 Trustindex verifies that the original source of the review is Google. Rafael and his team at Coastline Harmony Builders did an amazing job on our Irvine kitchen remodel. We were a bit stressed about the whole demo and electrical process, but they handled it all so smoothly. The custom cabinet fronts look incredible, and they actually kept the house clean while working. Great communication the whole time. We absolutely love our new kitchen!

Bathroom Remodeling Service Areas

We provide bathroom remodeling throughout Orange County, including Irvine, Newport Beach, Costa Mesa, Laguna Niguel, Huntington Beach, Tustin, Orange, Mission Viejo and surrounding communities.

Bathroom Remodeling Orange County FAQ

How long does a full bathroom remodel take in Orange County?

A complete turnkey bathroom remodeling Orange County project typically takes 3 to 5 weeks, depending on the complexity of plumbing relocations and permit approvals. As a leading provider of bathroom remodeling in Orange County, we ensure that every project follows a clear schedule and meets all local building codes before construction begins.

Can you install semi-custom or modular vanities for a high-end look?

Yes! We specialize in combining reliable modular bases with premium upgraded fronts and custom countertops. This approach delivers a bespoke, designer look with flawless execution, perfectly tailored to your space.

Do I need a permit to remodel my bathroom in Irvine or Newport Beach?

If your remodel involves moving plumbing fixtures, structural changes, or electrical upgrades, a permit is legally required. As a licensed General Contractor, we handle the entire permitting process to ensure your project is 100% compliant.

How do you ensure my new walk-in shower won’t leak?

We use industry-leading, modern waterproofing systems behind the walls and under the floor, rather than outdated methods. This guarantees a completely watertight, mold-resistant foundation for your luxury tile and peace of mind.

Do you provide turnkey bathroom remodeling with vanity, lighting, and plumbing included?

Yes. We provide complete turnkey bathroom remodeling that may include demolition, plumbing, electrical work, lighting, waterproofing, tile, vanities, countertops, fixtures, glass enclosures, painting, permits, inspections, and final cleanup. The exact scope is defined in the project proposal.

Do you install custom showers and vanities in Orange County?

Yes. We build walk-in showers and install custom, semi-custom, and modular vanity solutions throughout Orange County. Projects may include waterproofing, tile, glass enclosures, plumbing fixtures, lighting, countertops, storage, and related finish work.

Coastline Harmony Builders, Inc. is an independent general contractor. All product names and trademarks are the property of their respective owners and are used for identification purposes only. Photography and renderings shown on this page are for illustrative and inspirational purposes, representing the design styles, materials, and quality standard of our turnkey installations.

Ready To Start Your Bathroom Remodel?

From conceptual design to flawless licensed execution, trust our professionals to build the bathroom you’ve always wanted. Start your bathroom remodeling Orange County project today.

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Fully Licensed, Insured & EPA Lead-Safe Certified for your peace of mind.