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How to hire a Deck Builder

Deck builders design and construct outdoor decks from wood, composite, or PVC materials. A well-built deck extends your living space, increases home value, and provides years of enjoyment. Building code compliance, proper footings, and quality materials are essential for safety and longevity.

$25 to $75

per square foot

10 steps

Full hiring checklist

8 red flags

Warning signs to catch

The hiring checklist.

Work through these before you hire any deck builder. Skip a step and it's usually the one that comes back to bite you.

  1. 01

    Verify licensing

    Deck construction typically requires a general contractor license. Verify the builder's license is active and covers structural work.

  2. 02

    Confirm insurance and bonding

    Deck building is structural work. Verify general liability, workers' comp, and consider requiring a surety bond.

  3. 03

    Get detailed design proposals

    A quality deck builder provides a design drawing with dimensions, material specs, railing details, and stair placement.

  4. 04

    Discuss material options

    Compare pressure-treated wood, cedar, composite (Trex, TimberTech), and PVC. Each has different cost, maintenance, and lifespan profiles.

  5. 05

    Confirm code compliance

    Decks must meet building codes for footings, joists, ledger boards, railings, and stairs. The builder should be thoroughly familiar with local codes.

  6. 06

    Ask about footings and structure

    Proper footings (depth below frost line) and structural connections (ledger board attachment, joist hangers) are critical for safety.

  7. 07

    Check permits

    Decks almost always require a building permit. The builder should handle the permit application and schedule required inspections.

  8. 08

    Review their portfolio

    Look for level surfaces, straight lines, quality railing work, and proper stair construction in their previous projects.

  9. 09

    Discuss features and add-ons

    Consider built-in seating, lighting, planters, privacy screens, and covered areas. Discuss these upfront to include in the design.

  10. 10

    Get a comprehensive contract

    Include design plans, material specifications, code compliance, permit responsibilities, timeline, payment schedule, and warranty.

Red flags to watch for.

Any one of these should give you pause. Two or more, and it's time to walk away.

  • Does not pull permits or mentions skipping them
  • Proposes footings that are too shallow for your frost line
  • Uses nails instead of structural screws for framing connections
  • Does not attach the ledger board properly to the house
  • Cannot explain local building codes for decks
  • No design drawings or blueprints
  • Uses construction-grade lumber instead of deck-rated materials
  • No warranty on structural work

Questions to ask first.

Ask these before you sign anything. The answers tell you fast who knows the work and who's improvising.

  1. 01What material do you recommend for my budget and maintenance preferences?
  2. 02How deep will the footings be, and what type of foundation will you use?
  3. 03How will you attach the ledger board to my house?
  4. 04Will you handle the permit and schedule inspections?
  5. 05What railing style and material do you recommend?
  6. 06What is the warranty on structure and decking material?
  7. 07How long will the project take from start to finish?
  8. 08Can you provide a detailed design drawing?

What to verify.

Confirm every one of these in writing before you sign a contract with any deck builder.

  • General contractor license
  • General liability insurance
  • Workers' compensation insurance
  • Knowledge of local building codes
  • Portfolio of completed deck projects
  • References from past clients

Average cost

$25 to $75

per square foot

Prices swing with location, project complexity, and the deck builder's experience. Always get multiple written estimates and compare them line by line, not just on the bottom number, before you decide.

Find licensed deck builders near you.

Browse verified listings with ratings, reviews, and licensing details in the free Vemra directory, then request quotes from the ones you've vetted.

Common questions.

How much does a deck cost to build?
A pressure-treated wood deck costs $25 to $40 per square foot. Composite decks run $40 to $75 per square foot. For a typical 300 square-foot deck, expect to pay $7,500 to $22,500 installed. Factors include material, size, height, railings, stairs, and local labor rates.
How long does it take to build a deck?
A simple ground-level deck can be built in two to four days. Elevated decks, multi-level designs, or decks with complex features take one to three weeks. Permit processing can add one to four weeks before construction begins.
Do I need a permit to build a deck?
In most jurisdictions, yes. Decks typically require a building permit and inspections for footings, framing, and final completion. Even small decks close to ground level may require permits depending on your local codes. Your deck builder should handle the entire permit process.
What is the best decking material?
Pressure-treated wood is the most affordable but requires annual maintenance. Composite decking (Trex, TimberTech) costs more upfront but requires minimal maintenance and lasts 25 to 50 years. PVC decking is the most moisture-resistant. Cedar is beautiful but requires regular sealing. The best choice depends on your budget and willingness to maintain the deck.