How to Choose a Deck Contractor You Can Trust (2026 Checklist)

Updated October 2026. How to choose a deck builder or contractor you can trust: what to check, what to ask, what the contract should say, and the code basics behind a safe deck.

To choose a deck contractor in October 2026, check four things before you sign: a valid state or local license, proof of liability and workers’ compensation insurance, at least three written quotes, and a contract with the license number and start and end dates, as the FTC advises. Then confirm the plan meets code; guards are required on decks more than 30 inches above grade.

Jump to: 🪜 Checklist · 🤝 Questions to ask · 💲 Contract & payment · 🏠 Code basics · ❓ FAQ

A deck looks simple: posts, beams, joists, boards. But it’s a structure that holds people above the ground, often attached to your house. The builder you pick decides whether it lasts 25 years or starts to wobble in five. Here’s how to choose well.

How do you choose a deck contractor?

Work through this list with every builder you’re considering. Write the answers down so you can compare.

Start with people you trust

The FTC’s advice on home improvement scams starts here: get contractor recommendations from people you know and trust. Ask neighbors whose decks still look good after a few winters. Search online too. Looking up a deck builder near me is a fine way to build a short list, as long as you then check each one.

Check the license and insurance

Licensing rules differ by state, and some cities add their own. The FTC suggests checking with your state or county government to confirm a contractor’s license and asking for proof of insurance. Two policies matter. General liability covers damage to your property. Workers’ compensation covers injuries to the crew. If a worker without coverage gets hurt on your job, you could face a claim. Read how workers’ compensation coverage differs from general liability before you ask.

Look at real work

Ask for photos of recent decks and the addresses of two or three you can drive by. Look at the details: straight board lines, even gaps, solid railings, hidden or neat fasteners, and flashing where the deck meets the house. Ask other homeowners how the builder handled problems, not just how the deck looks.

What questions should you ask a deck builder?

• Who pulls the permit, and who meets the inspector?
• Will you attach the deck to the house with a ledger? How will you flash it?
• What post size, footing depth and joist spacing will you use?
• Which decking do you recommend, wood or composite, and why?
• Who will be on site each day: your crew or subcontractors?
• How do you handle changes, delays and bad weather?
• What does your warranty cover, and for how long?

Good builders answer these easily and in writing. If you’re still deciding on the look, read how to choose the perfect design for your custom deck first, so every builder quotes the same plan.

How do you compare deck construction companies?

Line up the quotes in one table: materials, square footage, railing type, stairs, footings, permit costs, cleanup and timeline. The FTC says not to automatically choose the lowest bidder, and to ask why when estimates are far apart. Often the cheap quote leaves out the permit, uses thinner lumber or skips flashing. Customer reviews help too, especially ones that mention how the builder handled a problem.

Which red flags should make you walk away?

A builder who knocks on your door with leftover materials, pushes you to sign today, asks for most of the money upfront or wants cash only. Also be wary of anyone who suggests skipping the permit to save time. That shortcut can cost you later, when an inspector or a buyer finds it.

What should a deck contract include?

Don’t start work on a handshake. The FTC lists what to look for before you sign:

• The contractor’s name, address, phone number and license number.
• Estimated start and completion dates.
• Every verbal promise about scope, materials and cost, in writing.
• No blank spaces.
• If you signed at home, a written statement of your right to cancel within three business days.

Payment matters as much as the plan. Some states limit how much a contractor can ask for as a down payment, so check with your state or local consumer agency. Pay by check or card, not cash or wire. Tie later payments to milestones, like passed inspections. And never make the final payment until the work is done and you’re satisfied.

What code rules apply to a new deck?

Most decks need a permit. Rules come from your local building code, usually based on the International Residential Code (IRC). The American Wood Council’s Prescriptive Residential Wood Deck Construction Guide (DCA 6) turns those rules into plain drawings. A few points from it:

• Minimum post size is 6×6.
• The ledger attached to the house is at least a 2×8.
• All decks more than 30 inches above grade need a guard.
• Lumber in contact with the ground must be treated for ground contact.

Your local building department has the final say, and its rules can be stricter. A builder who knows DCA 6 well is a good sign. If you’re also building or remodeling the house, our guides on choosing a custom home builder and features to ask eco-friendly builders for use the same checks.

Does a new deck help when you sell?

Outdoor space sells. The Census Bureau’s survey of homes completed in 2025 tracks porches, decks and patios on new homes, and in the Northeast, for example, 11% of new single-family homes had a deck only. Buyers of older homes look for the same thing.

Keep the permit, final inspection and warranty in a folder. Buyers and their inspectors will ask. An unpermitted deck can turn into a repair request or a price cut, so close out the permit before you list. When you’re ready, a Beycome flat fee MLS listing puts your home and its new deck on the local MLS for $99 with $0 due to Beycome at closing, with the maximum photos the MLS allows. Leftover boards? Here are things you can make with decking boards.

Frequently asked questions