Decks & Patios Contractors in Washington

How to Hire a Decks & Patios Contractor in Washington

Deck and patio builders design and construct outdoor living spaces: raised wood or composite decks, ground-level platforms, paver and stone patios, pergolas and railings. A deck is a structure that has to carry people safely, so footings, framing and the connection to the house matter more than the decking boards. It is worth hiring a pro when the deck is elevated, attached to the house or replacing an aging structure.

What to check before you hire

• Confirm they will pull a permit; attached and elevated decks almost always require one along with footing and framing inspections.
• Ask how the deck will attach to the house, including ledger flashing and fasteners, since this connection is a common failure point.
• Check that footings will go below the local frost line where that applies.
• For composite decking, ask whether the installation follows the manufacturer requirements so the product warranty stays valid.
• Make sure railings and stairs will meet code for height, spacing and graspable handrails.

Questions to ask every contractor

• Which lumber or composite product do you recommend for our climate and use, and why?
• How will water drain away from the ledger and from a patio surface?
• Who creates the drawings the permit office requires?
• What maintenance will this deck or patio need each year?

Frequently asked questions

Do I need a permit to build a deck?

In most places, yes, especially if the deck is attached to the house, is more than a short height off the ground or has stairs. Some low, freestanding platforms are exempt, but rules vary by city.

Wood or composite decking?

Pressure-treated wood costs less up front but needs regular sealing or staining. Composite resists rot and splinters and needs less upkeep, though it can get hot in direct sun. The framing underneath is usually wood either way.

How long does a deck last?

It depends on materials, climate and maintenance. Well-built decks with properly flashed ledgers and good drainage last much longer than those where water sits against the framing.