Do You Need a Licensed Contractor to Build a Deck?
April 1st, 2026
5 min read
Planning a new deck for your Michigan home can be exciting, but it also comes with big decisions. Choosing whether to hire a licensed contractor isn’t just about legality. It impacts safety, durability, and the long-term value of your investment.
At Custom Built, our team has over two decades of experience helping homeowners design and build decks that last. We understand Michigan’s climate challenges, local building codes, and what it takes to create a backyard space that’s both beautiful and structurally sound.
In this article, we’ll break down when a licensed contractor is required, the benefits of professional expertise, and tips to ensure your deck is safe, compliant, and built to last. By the time you’re finished reading, you’ll have a clear path forward for planning your ideal deck project:
- Why Licensing Matters
- When a Licensed Contractor Is Required
- When a Licensed Contractor Might Not Be Required
- 4 Benefits Beyond Compliance
- Understanding Permits and Inspections
- 4 Tips for Choosing the Right Contractor
- DIY vs. Hiring a Licensed Contractor
Why Licensing Matters

Hiring a licensed contractor goes beyond legality; it’s about protecting your home, your family, and your investment. A licensed professional brings proven skill, accountability, and knowledge most homeowners don’t have.
This matters even more for elevated or multi-level decks that need to stand up to Michigan’s snow, ice, humidity, and sun.
Key advantages include:
- Structural safety: Licensed contractors ensure your deck is properly supported and built to withstand daily use and family gatherings.
- Code compliance: Every city has rules for railings, stairs, and spacing. Licensed pros already know these rules and make sure your deck meets them.
- Liability protection: Reliable contractors help protect you from risk if something goes wrong during construction.
Custom Built Tip: Verify your contractor’s license and insurance upfront. Even small decks benefit from professional oversight to ensure safety and longevity.
When a Licensed Contractor Is Required

Local codes in Michigan vary, but many situations require hiring a licensed contractor or at least strongly recommend it. Projects that integrate with your home structure or need permits fall into this category. Knowing the regulations before you start prevents costly mistakes and ensures your deck is fully compliant.
Typical scenarios requiring a licensed professional:
- Structural integration: Any deck attached to your home or elevated more than 30 inches off the ground.
- Permit-required projects: Most municipalities mandate permits for decks above a certain size or height.
- Electrical or plumbing elements: Outdoor kitchens, lighting systems, or water features may legally need licensed installation.
Custom Built Tip: We always recommend working with a licensed and insured contractor. It is a clear way to make sure your investment is protected.
When a Licensed Contractor Might Not Be Required

With that said, we understand there will be times and places when a homeowner is looking for a repair that may not require a licensed professional. Every deck project legally demands a licensed professional.
For example, ground-level, freestanding, or decorative decks may be exempt. Yet, even these projects benefit from professional guidance to prevent future problems.
Considerations for smaller, potentially DIY decks:
- Proper drainage and grading: A professional ensures water doesn’t pool under your deck by installing drainage systems, preventing rot and erosion.
- Structural stability: Correct joist spacing, fasteners, and support posts prevent sagging or warping.
- Safe construction: Avoid potential hazards from improperly cut boards or unsecured railings.
Custom Built Tip: Even if a license isn’t required, a professional’s insight can extend the life of your deck and maintain property value.
4 Benefits Beyond Compliance

A licensed contractor offers more than just code compliance. They bring expertise that ensures your deck performs well and looks great for years. Proper planning, installation, and finishing touches are critical to a durable outdoor space.
Other benefits include:
- Material expertise: Guidance on cedar, pressure-treated wood, composite, or PVC decking.
- Enhanced durability: Correct installation methods maximize lifespan, especially in Michigan’s variable climate.
- Efficiency: Avoid costly mistakes and wasted materials common in DIY or unlicensed work.
- Warranty coverage: Many licensed contractors provide labor and material warranties for added peace of mind.
Custom Built Tip: Discuss materials early in the planning process. Board thickness, fasteners, and finish treatments can affect the deck’s longevity.
Understanding Permits and Inspections

PC: Family Handyman
Even when a licensed contractor isn’t required for your deck, permits and inspections are essential. Permits ensure your project meets local building codes and protects your investment. Failing to obtain proper approvals can result in fines, costly delays, or complications when selling your home.
Key permit considerations include:
- Deck height and square footage limits: Some local codes restrict deck size and elevation.
- Placement relative to property lines: Ensures your deck doesn’t encroach on neighbors’ property or violate easements.
- Railing and stair safety standards: Proper heights, spacing, and load requirements are mandatory.
- Electrical permits: Required for outdoor outlets, lighting, or other electrical additions.
Why inspections matter:
Licensed deck builders understand that inspections are a critical part of a safe, long-lasting deck. Each inspection ensures construction meets code, structural integrity is maintained, and safety is never compromised. Skipping inspections can lead to expensive repairs, delays, or even unsafe conditions.
Typical deck inspections:
- Footing Inspection: Conducted after forms and rebar are set but before pouring concrete. Confirms the foundation is level, reinforced, and properly positioned.
- Framing Inspection: Ensures joists, beams, and ledger boards are installed correctly and securely before decking is added.
- Electrical Inspection: Required if your deck includes outlets, lighting, or other electrical components. Confirms wiring and fixtures are safe and code-compliant.
- Final Inspection: Conducted after the deck is complete. Confirms overall safety, proper railing installation, and that all permit requirements have been met.
Custom Built Tip: A licensed deck builder will manage both permits and inspections as part of their service. This approach keeps your project on schedule, ensures every phase meets safety and code requirements, and gives you confidence that your deck is built to last.
4 Tips for Choosing the Right Contractor

Selecting the right contractor is as important as choosing the materials for your deck. Not all contractors provide the same level of service, knowledge, or quality.
Look for these traits:
- Licensed and insured: Protects both you and your project.
- References and portfolio: Examine past work for quality and style.
- Material knowledge: Especially important in Michigan’s climate to avoid rot or warping.
- Clear contracts: Detailed agreements prevent misunderstandings about cost, scope, or timeline.
Custom Built Tip: Meet with many contractors to compare timelines, material recommendations, and design approaches.
DIY vs. Hiring a Licensed Contractor

Some homeowners consider building their own deck. While DIYing your deck can save money, it comes with significant risks and responsibilities.
Potential pitfalls of DIY decks:
- Time commitment: Even small decks can take weeks for novices to complete.
- Safety risks: Incorrect joist spacing, fasteners, or railing height can lead to injury.
- Code compliance issues: Without professional knowledge, your deck might fail inspections.
- Permits and inspections: Managing permits, footing inspections, framing inspections, and final approvals can be complicated and time-consuming.
Why a licensed deck builder makes a difference:
- Expertise and guidance: Ensures proper design, materials, and construction practices.
- Permits and inspections handled: Licensed builders know local code requirements and manage inspections like footings, framing, and final approval.
- Efficiency and quality: Projects are completed faster and built to last.
- Liability protection: Insurance and warranties protect homeowners if issues arise.
- Long-term value: Proper construction preserves the deck’s safety, appearance, and resale value.
Custom Built Tip: If you’re confident in your skills, starting with a small, ground-level deck may be realistic. For larger, elevated, or more complex builds, hiring a licensed professional is strongly recommended to ensure safety, compliance, and peace of mind.
Next Steps to Building or Remodeling Your Deck
Hiring a licensed contractor ensures your deck is safe, code-compliant, and built to last. By working with a professional, you protect your investment and gain peace of mind knowing every detail is handled correctly.
At Custom Built Design & Remodeling, we help you through every step, from design to material choices to final construction, so you end up with a high-quality deck that fits your lifestyle.
Ready to begin or just gathering ideas? Schedule a consultation with our team, and let’s bring your backyard vision to life.
Now that you know more about why you need a licensed contractor to build a deck, let’s explore ways to prepare for your project, the signs that your deck footings aren’t installed correctly, and Custom Built’s full-service deck-building services:
- 10 Ways to Prepare for Your Deck Build Project - Learn 10 practical steps homeowners can take before construction begins to ensure a smoother deck build, better communication, and fewer surprises during the project.
- 10 Signs That Your Deck Footings Aren’t Installed Correctly - Discover 10 warning signs that your deck footings may be improperly installed and why addressing these issues early is critical for the safety and longevity of your deck.
- Custom Built Deck-Building Services - From design to construction, we create durable, beautiful decks tailored to your home, lifestyle, and budget while guiding you through every step of the process.- From design to construction, we create durable, beautiful decks tailored to your home, lifestyle, and budget while guiding you through every step of the process.
Isabelle has worked at Custom Built for over 7 years, learning the systems from all sides. She has become an industry advisor in the customer relations software HubSpot, has a keen talent for elements of design, and currently leads the marketing team under the innovative Endless Customers system.
