Why Choosing the Right ADU Contractor Matters
Building an Accessory Dwelling Unit (ADU) is an exciting investment. Whether you’re adding an ADU for rental income, guest accommodations, or extra space for family members, the success of your project depends on hiring the right ADU contractor. Choosing the wrong contractor can lead to costly delays, poor craftsmanship, and unexpected expenses.
In this guide, we’ll explain how to choose the right ADU contractor, the key questions to ask, and what to look for to ensure a smooth and stress-free experience.
1. Understanding ADU Construction – Why It’s Different from a Standard Remodel
An ADU is not just another home addition—it requires specialized expertise. Unlike a standard home remodel, ADUs often have unique zoning regulations, utility connections, and permitting processes that require an experienced contractor.
Key Considerations for ADU Construction:
- Zoning & Permits: Depending on the city, ADUs have strict zoning laws, setbacks, and size limitations.
- Utility Connections: Some ADUs need separate water, electricity, and sewer lines.
- Structural Considerations: Converting an existing garage or basement into an ADU requires structural modifications.
- Sustainability & Energy Efficiency: Green building practices can lower long-term costs.
- Cost Considerations: Building an ADU can vary widely based on several factors, such as size, materials, design complexity, and desired customizations. Because each project is unique, we recommend contacting us directly for a personalized estimate.
Pro Tip: Choose a contractor who understands local ADU regulations and permitting in your area.
2. Key Factors to Consider When Choosing an ADU Contractor
1. Licensing, Insurance & Certifications
The first step in hiring an ADU contractor is verifying their license and insurance.
- Ensure they are licensed, bonded, and insured in your state.
- Look for certifications like Built Green for sustainability.
- Check if they specialize in ADU construction rather than general remodeling.
- Confirm they are familiar with local building codes and permit application processes.
At MacCoy Home Solutions, we are Built Green Certified and fully licensed to build ADUs in Washington State.
2. Experience & Portfolio
Hiring an experienced ADU contractor ensures your project is completed on time and within budget. Ask for:
- Before-and-after photos of completed ADUs.
- Customer testimonials and reviews.
- References from previous ADU projects.
3. Transparency in Pricing & Estimates
A reliable contractor will provide a detailed cost breakdown upfront. Avoid contractors who:
- Give vague pricing without an itemized estimate.
- Avoid discussing additional costs that may arise during the project.
- Pressure you into signing a contract without transparent pricing.
At MacCoy Home Solutions, we provide free estimates and a transparent pricing structure.
4. Project Timeline & Communication
Ask potential contractors how long the ADU project will take.
Key questions to ask:
- How often will we receive updates?
- Who will be my main point of contact?
- How will unexpected delays be handled?
We use BuilderTrend, a project management tool, to keep clients updated every step of the way.
3. Frequently Asked Questions (FAQs) About ADU Construction
How much does an ADU cost to build?
The cost of building an ADU depends on several factors, including size, design choices, materials, and level of customization. Because every project is unique, we recommend contacting our team for an estimate.
Do I need permits to build an ADU?
Yes! ADUs require specific permits depending on city regulations. MacCoy Home Solutions will guide you through all permitting and zoning requirements for your project.
How long does it take to build an ADU?
The timeline for building an ADU varies based on the scope and complexity of the project. Factors like design details, permitting requirements, site conditions, and customization all play a role. We’ll provide a more accurate timeline after discussing your specific goals and project needs.
Can an ADU be used as a rental unit?
Absolutely! Many homeowners use ADUs for long-term rentals or Airbnb income. Rental income from an ADU can offset mortgage costs or generate passive income.
What types of ADUs can I build?
- Detached ADU (Separate structure on the property)
- Attached ADU (Built as an extension of the leading home)
- Garage Conversion ADU (Transforming a garage into a livable space)
- Basement ADU (Finishing a basement for an independent living area)
4. Why MacCoy Home Solutions is Your Trusted ADU Contractor
Experience, transparency, and customer service matter when choosing an ADU contractor. MacCoy Home Solutions has been helping homeowners in Washington for over a decade.
✅Licensed, Bonded & Insured – Ensuring legal compliance.
✅ Built Green Certified – Sustainable and energy-efficient building.
✅ Free Estimates & Transparent Pricing – No hidden costs.
✅ 12-Month Craftsmanship Warranty – We stand by our work.
✅ Project Management with BuilderTrend – Clear communication throughout the process.
✅ Expertise in Zoning & Permitting – Making your ADU project hassle-free.
5. Get Started on Your ADU Project Today!
Ready to build your dream Accessory Dwelling Unit? MacCoy Home Solutions offers free estimates and expert guidance on ADU construction.
📍 Serving Lynnwood, Edmonds, Kirkland, Woodinville, and surrounding areas!
Final Thoughts
Building an ADU is a significant investment—choosing the right contractor ensures the process is smooth, efficient, and stress-free. You can maximize your budget, timeline, and overall satisfaction by following these steps and working with a trusted ADU contractor like MacCoy Home Solutions.
