Address

7975 Pine Ave SE

Snoqualmie, WA 98065

Business Hours

M - F: 7am - 6pm

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Address

7975 Pine Avenue Southeast

Business Hours

M - F: 8am - 5pm

(256) 634-6250

BASEMENT REMODELING IN SEATTLE, WASHINGTON

Transform Underused Space Into Comfortable Living Areas

From classic homes in Capitol Hill to modern builds in Ballard, Seattle homeowners are increasingly turning to their basements for more usable space. At Snoqualmie Construction Services, we specialize in custom basement remodeling in Seattle, Washington—helping you convert dark, unfinished areas into warm, livable spaces that match your lifestyle.

Whether you’re planning a guest suite, home office, media room, or rental unit, we bring creativity, code expertise, and skilled craftsmanship to every basement renovation.

Ready to make the most of your lower level? Contact us today to schedule a free in-home consultation.

Frequently Asked Questions

What’s the average cost to remodel a basement in Seattle?

Basement remodeling in Seattle typically ranges from $80,000 to $200,000+, depending on square footage, moisture control, finishes, and whether plumbing or egress windows are needed. We offer a tailored estimate after your consultation.

How long does a basement remodel take?

Most projects take between 6 to 12 weeks. We provide a project timeline at the start and keep you informed every step of the way.

Can I convert my basement into a legal rental unit?

Yes—Seattle allows Accessory Dwelling Units (ADUs) in basements, but they must meet specific code and permit requirements. We’ll guide you through compliance and design accordingly.

Will you help with moisture control or drainage issues?

Absolutely. We assess your foundation and basement conditions and install waterproofing, sump pumps, or insulation upgrades as needed to ensure a safe, dry space.

Do you handle design and layout planning?

Yes. We provide complete design services, including layout optimization, lighting plans, finishes, and custom features suited to your basement’s shape and your goals.

OUR BASEMENT REMODELING SERVICES IN SEATTLE

Full Basement Finishing

Transform your unfinished or outdated basement into a fully finished extension of your home. We handle framing, insulation, drywall, flooring, lighting, and every detail required to bring your lower level up to standard.

Whether you're starting from bare concrete or remodeling an older space, our comprehensive finishing services turn it into a bright, welcoming environment perfect for guests, kids, or relaxation

Basement Apartments & ADUs

Looking to generate rental income or create a private living space? We specialize in converting Seattle basements into fully functional apartments and accessory dwelling units (ADUs).

From kitchenettes and full baths to egress windows and separate entrances, we manage every aspect of construction and code compliance. Our ADU designs prioritize privacy, energy efficiency, and comfort while adhering to Seattle’s strict permitting standards.

Entertainment & Media Rooms

Basements are ideal for home theaters, game rooms, or media lounges. We design and build entertainment spaces with soundproofing, built-in shelving, projector mounts, surround sound systems, and ambient lighting for the perfect cinematic experience.

Whether you want a cozy movie room or a full bar-and-lounge setup, we customize the space to suit your lifestyle and layout.

Home Offices, Gyms & Studios

Need a quiet place to work, create, or stay fit? We remodel Seattle basements into inspiring home offices, music studios, yoga spaces, and personal gyms.

We install proper ventilation, lighting, sound control, and ergonomic layouts to make sure the space is functional and focused on your needs. Every design is tailored to your hobbies, routines, or professional requirements.

Basement Bathrooms & Utility Rooms

We add full or half bathrooms to basement remodels for added convenience and functionality. Our services include plumbing, waterproof flooring, ventilation, and efficient layouts to ensure long-term durability.

We also renovate laundry areas, storage zones, and mudrooms with custom cabinetry, folding stations, and durable finishes that handle daily wear with ease.

OUR PROCESS FOR BASEMENT REMODELING

On-Site Consultation
We visit your home to evaluate the basement’s structure, moisture levels, and potential. We’ll listen to your goals and walk you through design options, finishes, and code considerations.

Design & Proposal
Based on your needs and layout, we create a customized basement plan and detailed quote that includes all materials, labor, and timeframes. We’ll also include any needed permits, inspections, and upgrades.
Construction & Project Oversight
Our licensed team handles framing, electrical, plumbing, and finish carpentry with precision. A dedicated project manager keeps everything running on time and communicates with you throughout the build.
Final Walkthrough & Satisfaction Check
Once your basement remodel is complete, we conduct a final walkthrough with you to ensure every detail is done right. Any finishing touches are addressed promptly, and we don’t consider the job done until you’re 100% satisfied.

READY TO REMODEL YOUR SEATTLE BASEMENT?

Snoqualmie Construction Services is your go-to partner for expert basement remodeling in Seattle. Whether you're expanding your living space, building a rental unit, or just want more usable square footage, we’re here to help you bring your basement to life.

Call us today or click below to schedule your free estimate and start planning your basement transformation.