Professional Deck Installation vs. DIY: A Comparison

Highlights from this Article:

• DIY deck building is legal and achievable for skilled homeowners, but the full scope of what’s involved is often underestimated at the outset.
• Permits, drawings, inspections, MISS DIG clearance, and code compliance are required regardless of who builds the deck. None of these go away for a homeowner project.
• Demolition of an existing deck is a significant project in itself, and one that homeowners frequently underestimate in both labor and disposal cost.
• Ann Arbor Decks is a TrexPro Platinum certified installer, which provides access to Trex’s extended labor warranty (up to 10 years) and our own 10-year workmanship warranty.
• The cost savings of DIY are real but smaller than most homeowners expect, because labor is only one component of the total cost.
• Professional installation carries accountability that a DIY project doesn’t. A contractor’s work is inspected, warranted, and professionally liable in a way that self-built work is not.
• For complex projects, multi-level decks, elevated decks, or anything involving structural engineering, professional installation is strongly recommended.

Skip down to the DIY vs. professional comparison or the FAQs.

This is a question worth taking seriously rather than dismissing. Homeowners who ask it are usually weighing something real: the cost of professional installation is significant, and for someone with genuine carpentry skills, a well-equipped shop, and the time to commit, building their own deck is a legitimate option. We’re not going to tell you otherwise.

What we will do is give you an honest picture of what’s actually involved: not the version that makes it sound easy, and not the version designed to scare you into hiring someone. After building decks in Washtenaw County since 2006, we have a clear view of where DIY projects go well, where they run into trouble, and what professional installation actually provides beyond showing up with tools.

What DIY Actually Involves

The visible part of building a deck (cutting boards, driving screws, framing) is the part most people picture when they think about doing it themselves. It’s real work, but it’s the part a skilled woodworker or experienced DIYer can handle. What often gets underestimated is everything that surrounds that work.

Permits and drawings. In most Washtenaw County municipalities, a deck permit requires detailed construction drawings showing footing size and depth, framing dimensions and spacing, ledger attachment details, railing specifications, and stair design. These drawings need to be accurate enough to pass plan review. Preparing them takes time and specific knowledge of local code requirements. If the drawings are incomplete or incorrect, the permit application comes back for revision, adding weeks to the project timeline.

MISS DIG clearance. Before any footing excavation can begin, a MISS DIG 811 locate request must be submitted and cleared. This is a legal requirement, not optional. The three-business-day waiting period is built into the schedule regardless of who is doing the work.

Inspections. A permitted deck requires a footing inspection before concrete is poured, potentially a framing inspection before decking goes down, and a final inspection before the deck is occupied. Each of these requires scheduling with the building department, being present or accessible, and passing before work can proceed. If an inspection fails, the work stops until corrections are made and a re-inspection is scheduled.

Material procurement and logistics. Ordering the right quantities of composite decking, hardware, concrete, and framing lumber (and having it delivered in the right sequence) takes planning. Over-ordering wastes money. Under-ordering stalls the project while you wait for additional materials. Specialty items like composite railing components, hidden fastener systems, and post hardware have lead times that need to be accounted for. When delivery errors occur (wrong color, wrong length, missing components), we handle the resolution with the supplier directly as part of the project. A homeowner managing their own materials order is on their own when that happens.

Demolition of an existing deck. If you’re replacing an existing deck, demo is its own project before the real project begins. Homeowners consistently underestimate both the labor and the cost involved. Demolishing even a modest deck means disconnecting it from the ledger, pulling fasteners and hardware, breaking apart composite or wood board by board, cutting up and hauling away framing lumber, disposing of concrete footings if they’re being replaced, and renting a dumpster or making multiple dump runs. On a larger or older deck, demo alone can take a full weekend and generate a surprising disposal bill. We include demolition as part of our project scope when it’s needed, so there’s no hidden second job before the build can start.

Tool requirements. A deck build requires more than a circular saw and a drill. Post hole diggers or a rented auger, concrete mixing equipment, a miter saw for angle cuts, levels, chalk lines, impact drivers, specialized jigs for hidden fasteners, post levels, framing squares, and board-spacing tools are all part of a complete tool kit. We own all of it, including the handy extras that make a job faster and more precise. For a DIYer, renting what you don’t own adds cost, scheduling complexity, and return trips when a rental period runs long.

None of this is impossible for a capable homeowner. It’s just more than most people account for when they start thinking about the project.

Where the Cost Comparison Actually Lands

The assumed logic of DIY is: materials cost X, a contractor charges X plus labor, so by doing it yourself you save the labor. This is roughly true but the savings are often smaller than expected, for a few reasons.

First, professional contractors buy materials at contractor pricing that homeowners typically can’t access. The difference varies by material and supplier, but it’s not unusual for a contractor’s material cost to be noticeably lower than retail pricing on the same products. Some of the labor savings get offset by paying retail for materials.

Second, the permit, drawings, and inspection management that a professional handles have real value and real cost in time. When we prepare drawings, submit permit applications, coordinate with the building department, and manage inspections, those hours are absorbed into the project. A DIY homeowner pays for those same hours with their own time.

Third, mistakes are more expensive when you’re doing it yourself. A professional who frames a ledger incorrectly fixes it as part of the job. A homeowner who frames a ledger incorrectly either catches it at inspection (which means redoing the work) or doesn’t catch it, which means a structural problem that may not surface for years. The cost of errors on a professional project is the contractor’s problem. The cost of errors on a DIY project is entirely yours.

This doesn’t mean DIY is a bad financial choice. For a homeowner who genuinely has the skills, the tools, the time, and the patience for the full process, the savings can be real and meaningful. The key is going in with accurate expectations about what those savings actually are, and what you’re taking on in exchange for them.

What Professional Installation Actually Provides

Beyond the labor itself, a professional deck installation from a licensed contractor comes with several things a DIY project doesn’t.

Speed and efficiency. This is what our crew does every day, across every combination of materials, configurations, and site conditions that Michigan throws at us. That repetition produces a pace that a homeowner working weekends simply can’t match. Our team works through rain, cold, and grey skies: essentially every weather Michigan offers short of a tornado. A DIY project that stretches across weekends and weather delays through an entire spring can turn a project that would take our crew days into one that takes a homeowner months, with the job site sitting open and the deck unusable in the meantime.

TrexPro Platinum certification and extended labor warranties. Ann Arbor Decks is a certified TrexPro Platinum installer, and the highest level of recognition Trex awards to contractors. TrexPro Platinum status requires demonstrated mastery of Trex products and installation techniques, a valid contractor’s license, and appropriate insurance. It’s not a designation that every deck builder holds.

One of the most tangible benefits of that certification is access to Trex’s extended labor warranty, which is only available when a deck is installed by a TrexPro Platinum contractor. If you have either Trex decking or Trex railing installed, the labor warranty runs five years. If you have both installed, that extends to ten years, covering the cost of removal, disposal, and reinstallation if a warranted material defect occurs. A DIY installation or an installation by a non-certified contractor does not qualify for this coverage.

In addition to the Trex labor warranty, Ann Arbor Decks backs every project we build with our own workmanship warranty. That covers the quality of our installation work regardless of the product: Trex, TimberTech, cedar, Ipe, or any other material we install. It applies to every project, full stop. Together, these warranties provide a level of protection that a self-built deck simply can’t replicate.

Accountability. A licensed contractor’s work is tied to their license. If the deck fails inspection, they fix it. If there’s a structural problem that emerges after the build, there’s a party to hold accountable and, in most cases, a warranty to invoke. A homeowner building their own deck is both the contractor and the client; there’s no one else in the chain when something goes wrong.

Code knowledge. Building codes for decks cover dozens of specific requirements: footing depth and sizing, ledger attachment methods and flashing, joist and beam span tables, railing height and baluster spacing, stair geometry, handrail graspability, hardware specifications. A professional who builds decks regularly knows these requirements in detail and applies them without having to look each one up. A first-time DIY builder is learning the code from scratch on a project where getting it wrong has structural and safety consequences.

Warranty. As noted above, composite decking warranties often have installation requirements. The Trex extended labor warranty (up to ten years for decking and railing combined) is only available through TrexPro Platinum installers. This is not a minor distinction: it means a homeowner who installs their own Trex deck is leaving a significant warranty benefit on the table.

Insurance. A licensed, insured contractor carries general liability insurance. If something goes wrong during construction (a footing collapses, equipment causes damage, an injury occurs on the job site), the contractor’s insurance covers it. A homeowner doing their own work has no such coverage for construction-phase incidents, and a homeowner’s insurance policy may not cover self-built work that isn’t permitted and inspected.

Design input. A professional deck builder brings a body of experience with what works and what doesn’t, in layout, material selection, structural detailing, and how decks hold up over time in Michigan’s climate specifically. That’s not something a YouTube tutorial provides.

DIY vs. Professional Installation at a Glance

When Professional Installation Is Especially Recommended

For a straightforward ground-level or low deck with simple rectangular framing, a skilled and patient homeowner can produce a good result with proper research and preparation. But there are projects where professional installation is strongly advisable regardless of the homeowner’s skill level:

• Elevated decks and second-story decks. The structural stakes are higher, the framing is more complex, and the consequences of errors are more serious. A deck that fails structurally at six feet off the ground is a different situation than one at grade.
• Decks attached to the house (ledger-mounted). Ledger attachment is one of the most code-sensitive and failure-prone details in deck construction. Improper ledger connections are among the leading causes of deck collapses–and water intrusion issues. Getting this right requires understanding both the structural requirements and the waterproofing details that prevent rot at the connection over time.
• Multi-level or complex-geometry decks. Angles, multiple levels, and irregular shapes multiply the planning and execution complexity significantly.
• Projects requiring engineering. Some municipalities require engineer-stamped drawings for certain deck configurations. This is outside the scope of a typical DIY project.
• Projects with integrated features. Outdoor kitchens, built-in lighting, under-deck drainage systems, pergolas, and similar elements each add layers of complexity that benefit from professional coordination.

Frequently Asked Questions

Is it legal to build my own deck in Michigan? Yes. Michigan law allows homeowners to build on their own property, and a homeowner can apply for a permit for work they will perform themselves. The requirements (drawings, inspections, code compliance) are the same as for a contractor. What is not legal in Michigan is using a contractor who then asks you to pull the permit in your name for work they perform. That arrangement protects the contractor at your expense, and is a serious red flag.

Will a DIY deck void my composite decking warranty? It depends on the manufacturer and product line. Some composite warranties are valid for any properly installed deck regardless of who installs it. Others, particularly at the premium tier, require installation by a certified professional for full warranty coverage. We recommend checking the specific warranty terms for any product you’re considering before you decide how to proceed.

What if I want to do some of the work myself and hire out the rest? Ann Arbor Decks does not take on partial projects. We occasionally get requests to install just the footings and ledger, with the homeowner planning to complete the framing and decking themselves. We understand the thinking, but our answer is no, and here’s why. When we pull a building permit, we are pulling it for the entire deck. That makes us legally responsible for the full scope of the project through final inspection. We’re not in a position to stake our license on work we didn’t perform. It’s also worth knowing that in Michigan, a licensed contractor cannot legally work under a homeowner permit, so the arrangement would need to be structured with care regardless. If you’re set on doing some portion of the work yourself, you’d need to find a contractor whose business model supports partial scopes, and you’d need to sort out the permit structure carefully with them.

How do I find a reliable deck contractor in the Ann Arbor area? Look for a contractor who is licensed with the state of Michigan, carries general liability and workers’ compensation insurance, and handles their own permits. Ask for references from recent local projects and check that they have experience with the specific materials and configurations you’re considering. A contractor who hesitates on any of these points deserves scrutiny.

The Bottom Line

DIY deck building is a real option for the right homeowner: someone with carpentry experience, adequate tools, time to manage the full process including permits and inspections, and comfort taking on the accountability for the result. For that person, the savings are genuine.

For most homeowners, the hidden complexity of the permit process, the learning curve on code requirements, the coordination of materials and inspections, and the risk profile of getting structural details wrong make professional installation a better investment than the initial cost difference suggests. A deck that’s permitted, inspected, structurally sound, and covered by a contractor’s warranty is a different asset than one that isn’t, particularly when it comes time to sell the home.

If you’d like an accurate picture of what professional installation would actually cost for your specific project, we’re glad to put one together.

Book your free estimate today. We serve Ann Arbor, Saline, Dexter, Chelsea, Pittsfield Township, Ypsilanti, and the surrounding Washtenaw County area.

Steps to Building a New Deck in Washtenaw County: What Is the Process?

Highlights from this Article:

• Building a new deck involves several steps, and a good contractor will manage most of them on your behalf.
• Ann Arbor Decks handles the permit application process for every project. You don’t have to navigate municipal offices yourself.
• Permitting timelines vary widely across Washtenaw County municipalities. We factor this into the project schedule from the start.
• If your neighborhood has an HOA, their approval typically needs to come before the municipal permit (something worth knowing early).
• Every Ann Arbor Decks project comes with a timeline at signing so you know what to expect and when.

Skip down to the process overview table or the FAQs.

While most deck builds are not too complicated, the process isn’t just about framing and decking. There’s design work, HOA approval, zoning and permitting, material lead times, inspections, and sequencing to coordinate. Done well, most of that happens in the background and you experience it as a smooth, well-managed project.

This post walks through the process we follow at Ann Arbor Decks for every new build, so you know what to expect before you pick up the phone.

Step 1: Initial Consultation

Every project starts with a free on-site consultation, typically 45 minutes. We come to your home, walk the space with you, and talk through what you’re envisioning (size, materials, railing style, any special features like built-in lighting, a pergola, or an outdoor kitchen area).

We’re also looking at the site itself during this visit: grade, existing landscaping, how the deck will attach to the house, access for equipment and materials, and anything else that affects how the project gets designed and built. A deck that looks simple on paper sometimes has site conditions that require additional planning. We’d rather find those things at the consultation than mid-build.

After the consultation, we put together a written quote with clear, itemized pricing. No vague estimates. You’ll see what you’re paying for.

Step 2: Design and Drawings

Once you decide to move forward, we produce design drawings for your deck in-house. These aren’t rough sketches: they’re the detailed drawings that go to the municipality with your permit application, showing dimensions, framing layout, footing locations and sizes, ledger attachment detail, and railing specifications.

We’ll review your deck design with you first, so you have the opportunity to make adjustments while changes are still easy. This is also when we finalize material selections if you haven’t already.

Step 3: Material Selection

If you haven’t settled on materials by the end of the consultation, the design phase is when we nail that down. The main decisions are decking surface (composite or wood, and which product line), railing system, and any special features. We can walk you through samples and help you think through what suits your home, your yard, and your maintenance preferences.

Material lead times vary. Most standard composite products are readily available, but custom colors, specialty railing systems, or pergola kits may have longer lead times that affect the project schedule. We factor this in when we give you your build timeline.

Step 4: HOA Approval (If Applicable)

If your neighborhood has a homeowners association, their approval typically needs to come before you can apply for a municipal building permit. HOA review processes vary considerably. Some associations turn around approvals in a week or two; others meet only quarterly and require submissions well in advance of their meeting dates.

If you have an HOA, let us know at the consultation. We can provide the drawings and documentation their review board typically requires, but the submission and approval process runs through you as the homeowner. We’ve found it’s worth understanding your HOA’s timeline early, as it can be the longest single variable in the pre-construction phase.

Step 5: Permit Application

Ann Arbor Decks handles the building permit application for every project. You don’t need to visit municipal offices or navigate the application yourself. We take care of it.

If you need Ann Arbor historical permissions, that is something you would need to obtain first. We can assist you in any way possible.

Washtenaw County encompasses many Townships and municipalities, and permitting timelines vary more than most homeowners expect. The City of Ann Arbor, Saline, Dexter, Chelsea, Pittsfield Township, Ypsilanti, and the surrounding townships each have their own building departments with their own review processes and workloads. Some turn permits around in a week or two; others can take considerably longer, particularly during the busy spring and summer building season.

A few things that affect permitting in this area:

• Zoning setbacks vary by municipality. How close your deck can be to a property line, easement, or structure depends on local zoning rules. Where possible, we obtain zoning approval before submitting your permit, so there are no setback surprises after the permit is filed.
• Deck drawings must meet Michigan Residential Code requirements. Our in-house drawings are prepared with code compliance in mind, which helps avoid revision requests that delay permit issuance.
• Permit fees vary by municipality and project scope. These are passed through to you at cost, plus our administrative fees. The permit costs will be clearly broken out for you on your contract.

Step 6: Site Preparation

Once the permit is in hand, we can more exactly schedule your project start date. If there’s an existing deck or structure being removed, demolition and debris hauling happens first. We handle all of that, including proper disposal of any pressure-treated lumber, which Michigan requires be taken to an authorized facility rather than placed in regular trash.

We also arrange to have Miss Dig mark utility lines before any digging begins. In Michigan, this means we call MISS DIG (dial 811) to have underground utilities located and flagged. This is a legal requirement before any excavation and a step we take seriously. Hitting an unmarked utility line is dangerous and costly. When flags show up in your lawn, you’ll need to leave them be until we remove them for you.

Step 7: Footings and Framing

This is the structural core of your deck, and it’s where the quality of a build is really established, even though most of it ends up hidden once the decking goes down.

In Michigan, deck footings must extend below the frost line, which is 42 inches. This prevents the freeze-thaw cycle from heaving posts out of the ground over time (a common cause of deck instability on improperly built structures). We pour concrete footings to the required depth and allow appropriate cure time before framing begins. The inspector will come out to approve the size, position and depth of the holes (the ‘footings inspection’).

Framing involves setting posts, installing beams and joists, and attaching the ledger board to the house. If your deck is ledgered (not all decks are attached), this ledger connection is one of the most structurally critical details in any attached deck, and we take care with both the attachment method and the flashing that protects your home’s rim joist from water intrusion. A ledger that allows water behind it is a slow-motion problem that doesn’t show up until significant damage has already occurred.

Depending on your municipality, a framing inspection may be required before decking can be installed. Where required, we schedule and coordinate this inspection.

Step 8: Decking and Railing Installation

With framing complete and inspection passed, decking boards go down. Hidden fastener systems (which leave a clean surface with no visible screw heads) are standard on most of our composite installations. Stair construction, if your deck includes stairs, happens during this phase as well.

Railing installation follows. Whether you’ve chosen cable, glass, aluminum balusters, or a composite system, this is when the deck starts to look finished. We pay attention to detail at this stage (consistent spacing, plumb posts, secure connections) because the railing is both a safety system and one of the most visible design elements of the finished deck.

Step 9: Final Inspection

A final building inspection takes place before the permit is closed out. An inspector from the local building department visits the site and reviews the completed deck against the approved permit drawings and applicable code requirements, like stair riser heights, stair widths, and stair handrail requirements. We schedule and coordinate this inspection for you.

Once final inspection is passed, the permit is closed and the deck is officially yours to enjoy.

The Process at a Glance

Frequently Asked Questions

Do I need a permit to build a deck in Washtenaw County? In virtually all cases, yes. Any attached deck (and most freestanding decks above a certain size) requires a building permit in Washtenaw County municipalities. Building without a permit creates problems when you sell your home and can result in costly remediation if the unpermitted structure is discovered. Ann Arbor Decks handles the permit application for every project we build.

How long does the whole process take from first call to finished deck? It varies by project, but the permitting phase is usually the longest variable. Once a permit is in hand, the active build time for your specific deck is something we are happy to provide. We also coordinate with you on your expected project start date, staying in good communication as the project approaches.

What if my HOA rejects the design? We work with you to adjust the design to meet HOA requirements and resubmit. Most HOA rejections involve aesthetic concerns (materials, colors, or height) that can be addressed without fundamentally changing the project. The important thing is to start the HOA process early so a revision doesn’t significantly delay the overall timeline.

What is MISS DIG and why does it matter? MISS DIG is Michigan’s underground utility notification service. Before any digging begins, Michigan law requires contractors to contact MISS DIG (by dialing 811) so that underground utilities (gas, electric, water, communications lines) can be located and marked. We handle this as a standard part of every project requiring digging, before excavation starts. MISS DIG won’t cover sprinkler lines, so we do ask that you have your landscaper move those before we start work, if possible.

Why do footings need to go 42 inches deep? Michigan’s frost line (the depth at which the ground freezes in winter) is 42 inches. Footings that don’t extend below the frost line are subject to frost heave, where freezing and thawing soil pushes the footing (and the post above it) up and out of position over time. This leads to decks that become unlevel, unstable, or structurally compromised. Frost-depth footings are required by code and are simply the right way to build in Michigan.

Can I start using my deck before the final inspection? Technically the deck isn’t permitted for occupancy until the final inspection is passed and the permit is closed. We schedule final inspections promptly at project completion. There’s no reason for this step to take long once the work is done.

Ready to Get Started?

If you’re thinking about a new deck, the best first step is a conversation. Our free on-site consultations are no-pressure, take about 30 to 45 minutes, and give you a clear picture of what your project would involve. We then follow up with a written quote and a realistic timeline.

Book your free estimate today. We serve Ann Arbor, Saline, Dexter, Chelsea, Pittsfield Township, Ypsilanti Township, and the surrounding Washtenaw County area.