Basement Bathroom Remodeling Bellevue

Why Add a Bathroom to Your Basement?

Turning your basement into a livable, functional space? Adding a bathroom is one of the smartest moves you can make—and we’re here to help you do it right. At Evergreen Bathroom Remodelers, we specialize in designing and building basement bathrooms that are beautiful, fully functional, and built to code.

A basement bathroom isn’t just a luxury it’s a game-changer for everyday convenience. Whether you’re converting your basement into a guest suite, home office, entertainment zone, or rental unit, a well-designed bathroom adds value, comfort, and independence to the space. No more running upstairs mid-movie or sharing tight morning routines.

Why Remodel Your Basement Bathroom?

What We Include in Basement Bathroom Remodeling

Basement Bathroom Remodeling

Custom Layout Planning

We begin with a comprehensive assessment of your basement’s layout, plumbing accessibility, and ventilation options. Whether you’re converting part of a finished basement or starting from scratch, we’ll create a floor plan that fits your goals and adheres to local Bellevue building codes.

Bathroom Expansion in Seattle

Bathroom Plumbing Installation

Basement plumbing can be complex due to gravity-based drainage issues. Our licensed plumbers install or reroute lines, build sump pump or sewage ejector systems if necessary, and ensure everything flows safely and efficiently.

Shower and Bathtub Installation

Shower and Bathtub Installation

We offer a wide variety of space-efficient options including corner showers, alcove tubs, walk-in showers, and tub/shower combos. All waterproofed and tiled with premium materials suited for below-grade conditions.

Basement Bathroom

Toilet Installation

We install high-efficiency, low-flush, or pressure-assisted toilets, including upflush and macerating models designed specifically for basement installations. These are ideal for homes where traditional plumbing isn’t accessible below the main sewer line.

Vanities and Storage

Vanities and Storage

One of the primary considerations in accessible bathroom remodeling is ensuring that doorways are wide enough to accommodate wheelchairs, walkers, and other mobility devices. We can widen your bathroom doors and hallways to make it easier for individuals to move around freely and comfortably.

Accessible Vanities

Flooring Solutions

We use waterproof flooring materials such as luxury vinyl planks (LVP), porcelain tile, and sealed concrete to withstand basement humidity and reduce the risk of mold or water damage. Heated flooring systems can also be installed for added comfort.

Basement Bathroom

Lighting and Ventilation

Basement bathrooms often lack natural light, so we install recessed lighting, LED mirrors, and well-placed task lighting to brighten the space. Our team also ensures your bathroom is equipped with proper exhaust fans and ventilation systems to prevent condensation and mildew.

Lighting and Electrical Considerations

Finishing Touches

From towel bars to shower niches and sleek hardware, we add every detail needed to make your new bathroom functional, attractive, and cohesive with your basement’s style.

Benefits of a Basement Bathroom Remodel

  • Adds Functional Living Space
    A basement bathroom makes your lower level more livable, whether it’s used for a guest suite, home office, gym, or entertainment area. It adds convenience for both residents and visitors.
  • Increases Property Value
    Adding a bathroom—especially in a finished basement—can significantly boost your home’s resale value. It enhances appeal to buyers and adds value to square footage that may otherwise be underutilized.
  • Ideal for Guests or Rental Units
    If you’re creating a guest bedroom or converting your basement into a rental unit (ADU), a basement bathroom is essential. It provides privacy and independence for anyone staying in your home.
  • Maximizes Your Home’s Layout
    By utilizing space that would otherwise be wasted, a basement bathroom helps you get the most from your home’s footprint—especially in dense urban areas like Bellevue where every square foot matters.
  • Tailored to Your Lifestyle
  • From simple powder rooms to luxurious spa bathrooms, we tailor every basement bathroom remodel to your needs, preferences, and lifestyle.

Why Homeowners Trust Evergreen Bathroom Remodelers

  • Basement Expertise: Remodeling a bathroom below grade requires a special set of skills plumbing, waterproofing, and airflow all present unique challenges. With 12+ years of focused experience in Bellevue homes, we know exactly how to deliver success in this complex space.
  • Full-Service Remodeling: We’re your one-stop solution. From permits to paint, our team handles everything—design, construction, and project management—so you don’t have to coordinate multiple contractors.
  • Quality Without Compromise: We use premium, moisture-resistant materials, licensed tradespeople, and best-in-class workmanship for every detail, big or small.
  • Budget-Friendly Options: Whether you’re building a modest half-bath or an upscale guest suite, we provide options to match your goals and your budget, without cutting corners on quality or safety.
  • Outstanding Local Reputation: With dozens of successful basement remodels completed in the Bellevue area, we’ve built a reputation for professionalism, reliability, and great results.

Our Bathroom Remodeling Projects

Basement Bathroom Remodel FAQs

Yes, absolutely. With proper plumbing and ventilation, a basement can support a full bathroom including a shower, toilet, and sink. We handle layout, permits, and installation from start to finish.

Yes. Bathroom additions require permits in Bellevue to ensure plumbing, electrical, and ventilation systems meet code. We take care of all the necessary permits for you.

Plumbing and moisture control. Since basements sit below grade, water drainage and waterproofing must be carefully planned. We use reliable systems to avoid future issues.

Most projects take between 4–8 weeks depending on complexity and the condition of your basement. Custom designs or major plumbing rerouting may extend the timeline slightly.

Yes, we work with a range of budgets. Our team helps you prioritize essential features and find quality, affordable materials to make your vision work without overspending.

Ready to Build the Perfect Basement Bathroom?

If you’re ready to unlock the full potential of your basement, Evergreen Bathroom Remodelers is here to help. Whether you’re adding convenience, value, or just creating a beautiful new space, we’re Bellevue’s trusted experts in basement bathroom remodeling.