ADU & DADU Services
Possibilities of ADU and DADU Construction with Volcano Builders
Expert ADU & DADU Contractors in Seattle, WA
Volcano Builders is a licensed ADU contractor in Seattle, WA, with over 40 years of experience building custom Accessory Dwelling Units (ADUs) and Detached Accessory Dwelling Units (DADUs) across King, Snohomish, and surrounding counties in Washington State.
An ADU (Accessory Dwelling Unit) is a secondary housing unit on a single-family residential lot — it can be attached to the main home, built above a garage, or converted from existing space. A DADU (Detached Accessory Dwelling Unit) is a fully independent structure built separately in the backyard, with its own entrance, kitchen, and living space.
Whether you’re looking to add rental income, house a family member, or increase your property value, our Seattle ADU builders handle everything from permit applications to final construction — delivering a seamless, stress-free experience from start to finish.
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Comprehensive Renovation Services
Whether you need renovation services for your roof, floors, patio, deck, kitchen, bathroom, garage, or living room, we can handle everything related to home renovation. Every task is manageable for us.
Uniquely Yours
You can find wall blocks, flagstones, pavers, and whatever you need at Volcano Builders. You can choose from various colors, textures, and whatever else works for you.
Exemplary Quality
We take pride in this work, from the first designs and ideas to each material and craftsmanship selection. Every detail in the services offered is designed to redefine the ever-expected perfection.
Affordable Excellence
We are dedicated to serving you with uncompromised quality. We always aim to provide excellent renovations that fit within your price points while exceeding your aspirations for renovation.
Hire ADU(DADU) Contractors Near You
3 Simple Steps to Your ADU/DADU Services:
With more than 4 decades of experience behind us, we are the full-service contractor in Washington state who can cater to your every concrete need.
Free Estimate
Start with a free, personalized consultation. Our experts will assess your needs and provide a quick estimate for smaller projects or a detailed proposal for more complex ventures within 7 business days. During this initial meeting, we'll discuss your vision, budget, and timelines, laying a solid foundation for your project.
Design Your Dream Space
Whether you have your designs or need our creative vision, we're here to plan and perfect every detail. We'll work closely with you or your designer/Architect to ensure the final layout reflects exactly what you envision.
Construction and Project Management
Volcano Builders are with you each step of the way. We are responsible for all the state permissions, sending you regular updates, staying within the set budget, and assisting you when you need them.See your space transform as our dedicated team manages the construction with precision and care. We keep you in the loop with clear, ongoing communication, ensuring a smooth and satisfying build process right to the finish line.
Maximize Your Investment. Partner with Us for a Luxurious Experience.
What Does Your ADU & DADU Project Need?
ADU & DADU Construction Across Washington State: Your Local Trusted Experts
We set the bar high for ADU and DADU construction in Seattle and around Washington State. With service exemplifying quality in every county, choose us for renovation solutions set to the highest standard and your specific needs. We are always just a call away with our team of professionals.
From flawless execution to complete customer satisfaction, we assure you of achieving consistent success in every project. You can also trust the local experts dedicated to high standards in all aspects of the project, from deep local insights to unmatched reliability, turning your home into the space of your dreams.
Our Service Areas
Why Choose Our ADU & DADU Contractors?
- Complete Solutions with Many Options
- Design Consultants to Assist You in the Process
- Experienced Remodel Technicians
- Family-Run Business Since 2 Generations
- Shining Reviews Across Platforms
- Local Trusted Partner