Luxury Bathroom Remodeling in Brentwood, CA

Complete bathroom remodeling for Brentwood homeowners—from reworked primary suites and larger walk-in showers to custom vanities, premium tile and stone, plumbing, waterproofing, lighting, permits, and construction.

 

Licensed • Insured • Bonded • 15+ Years Experience • Design-Build Experts • Serving Southern California

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Complete Santa Monica Bathroom Renovations, From Layout to Final Finishes

Kol & Co. provides complete bathroom remodeling in Brentwood, Los Angeles, including layout changes, custom showers, plumbing, electrical, waterproofing, custom vanities, tile and stone, lighting, fixtures, permits, and construction.

We work on everything from guest bathrooms and tub-to-shower conversions to substantial primary bathroom renovations where the room is completely reconfigured around a larger shower, custom cabinetry, better storage, premium materials, and a more functional connection to the primary closet.

With 15+ years of remodeling and construction experience, we understand that a high-quality bathroom depends just as much on what happens behind the walls as the materials you eventually see.

Planning a bathroom remodel in Brentwood? Tell us what you’d like to change, and we’ll help you understand the scope, options, and next steps.

How Much Does a Bathroom Remodel Cost in Brentwood?

Bathroom remodeling costs vary considerably because a guest bathroom renovation and a fully reconfigured primary suite are very different projects.

As a general planning range, a bathroom remodel may start around $25,000–$40,000+, depending on the size, existing conditions, layout, plumbing, cabinetry, tile, fixtures, shower design, and finishes.

The most accurate estimate comes after evaluating the existing bathroom and defining exactly what you want to change.

Explore Our Services

Complete Bathroom Remodeling

Complete bathroom renovations including demolition, layout changes, plumbing, electrical, waterproofing, tile and stone, cabinetry, countertops, showers, tubs, lighting, fixtures, glass, flooring, and finish work.

Primary Bathroom Remodeling

Rework the primary bathroom with a larger walk-in shower, custom double vanity, better storage, freestanding tub, premium tile or stone, architectural lighting, upgraded fixtures, and a more functional layout.

Custom Vanities & Bathroom Finishes

Complete the bathroom with custom cabinetry, double vanities, countertops, natural stone or porcelain tile, mirrors, architectural lighting, plumbing fixtures, hardware, millwork, and carefully coordinated finish details.

What's Included in a Complete Bathroom Remodel?

A complete bathroom remodel involves much more than replacing the visible finishes. Plumbing, electrical, framing, waterproofing, ventilation, cabinetry, tile preparation, fixtures, and glass all need to work with the new layout.

Layout & Construction

Reconfigure the existing bathroom where needed to make better use of the available space.

  • Demolition and preparation
  • Bathroom layout changes
  • Wall and framing modifications
  • Shower and tub reconfiguration
  • Door and opening changes
  • Drywall and surface preparation
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Shower, Tub & Waterproofing

Build wet areas correctly before the final tile, stone, fixtures, and glass are installed.

  • Walk-in and custom showers
  • Shower pans and drainage
  • Waterproofing
  • Niches and benches
  • Freestanding or built-in tubs
  • Tile and stone installation
  • Frameless shower glass
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Plumbing, Electrical & Ventilation

Coordinate the systems behind the walls with the new fixtures and bathroom layout.

  • Plumbing relocation
  • Shower and tub valves
  • Drain modifications
  • Vanity and fixture connections
  • Electrical and outlet upgrades
  • Vanity and architectural lighting
  • Exhaust ventilation
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Vanities, Tile & Final Finishes

Bring the bathroom together with materials and details selected around the overall design.

  • Custom vanities and cabinetry
  • Countertops
  • Floor and wall tile
  • Natural stone
  • Mirrors and lighting
  • Sinks, faucets, and fixtures
  • Hardware, millwork, and paint
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How Long Does a Bathroom Remodel Take?

Many of our bathroom remodels take approximately 3–5 weeks of construction, depending on the scope.

Projects involving layout changes, custom cabinetry, specialty materials, extensive plumbing or electrical work, or more complex inspections may take longer. Planning, material ordering, and permitting should also be considered before construction begins.

Do I Need a Permit for a Bathroom Remodel in Brentwood?

It depends on the scope of your remodel.

For homes in Brentwood, Los Angeles, LADBS allows residential bathroom remodels without structural changes to qualify for an Express Permit, which does not require plan check.

A more extensive bathroom renovation may require additional permits or plan review if you’re:

  • Moving or changing walls
  • Changing the bathroom floor plan
  • Relocating plumbing
  • Adding or modifying electrical work
  • Making structural changes
  • Modifying other regulated building systems

LADBS specifically requires plan check for structural alterations and interior floor-plan changes, while plumbing modifications can require separate plumbing permits.

Kol & Co. can handle the applicable plans, permits, construction, inspections, and final approvals for your Brentwood bathroom remodel.

Our Design-Build Process

step 1

Consultation & Evaluation

We walk through the room, understand what you want to change, and look at the layout and existing conditions that may affect the renovation.

step 2

Design & Material Planning

We coordinate the shower, tub, vanity, storage, plumbing fixtures, tile or stone, lighting, glass, and other major selections around the new layout.

step 3

Plans & Permits

When required, we coordinate applicable plans, engineering, permits, and approvals before the permitted work begins.

step 4

Construction

We manage demolition, framing, plumbing, electrical, waterproofing, surface preparation, cabinetry, countertops, tile and stone, fixtures, lighting, glass, and finish installation.

step 5

Final Details & Completion

We complete applicable inspections, final installations, adjustments, punch-list work, and the final walkthrough.

Featured Remodeling Projects in Brentwood

Areas We Serve

We work with homeowners throughout Brentwood 90049, including Brentwood Park, Brentwood Glen, Westgate, Kenter Canyon, Mandeville Canyon, Crestwood Hills, and surrounding Brentwood and West Los Angeles neighborhoods.

Ready to Remodel Your Brentwood Bathroom?

Whether you’re planning a complete primary bathroom renovation, a larger walk-in shower, custom vanities, premium stone and tile, a new bathroom layout, or a bathroom-and-closet reconfiguration, Kol & Co. can manage the project from the initial scope through construction and completion.

We coordinate the layout, plumbing, electrical, waterproofing, cabinetry, tile and stone, fixtures, lighting, permits, and construction so the work behind the walls receives the same attention as the finishes you see every day.

Tell us what you’d like to change in your Brentwood bathroom, and we’ll help you understand the scope, options, and next steps. Request a Free Quote!

Frequently Asked Questions

How much does a bathroom remodel cost in Brentwood?

A bathroom remodel may start around $25,000–$40,000+, depending on the scope. Larger custom primary bathrooms with layout changes, plumbing relocation, premium materials, custom cabinetry, or specialty features can cost considerably more.

Many bathroom renovations take approximately 3–5 weeks of construction. More extensive primary-suite renovations may require additional time.

Often, yes. We can evaluate moving walls, showers, tubs, vanities, toilets, doors, and other elements when a new layout provides a meaningful improvement.

Often, yes, although feasibility depends on the existing floor structure, drainage, available depth, and bathroom layout.

Yes. If the tub isn’t used and the space would be more valuable as part of a larger shower, vanity, or circulation area, removing it may make sense. We also consider whether another bathtub remains elsewhere in the home.

It depends on the scope. LADBS identifies residential kitchen and bathroom remodels without structural changes as work that can qualify for an Express Permit, while more complex projects may require plan check and additional trade permits.

Yes. When required, Kol & Co. handles the applicable plans, engineering, permits, construction, and inspections.