Decks and Patios in Redmond, WA
Replacing an original deck on a Redmond home costs $60 to $115 per square foot in composite, including tear-out. Many decks built with Redmond's 1980s and 1990s subdivisions were pressure-treated, attached to the house with unflashed ledgers, and are now soft at the house and grey at the boards.
Redmond deck and patio costs
| Project | Typical Redmond range | Where it fits |
|---|---|---|
| Deck replacement in composite | $60 – $115 per sq ft | Education Hill, Grass Lawn, Willows |
| Second-story deck off a family room | $85 – $160 per sq ft | Split-levels and sloped yards |
| Screened porch | $45,000 – $110,000 | North Redmond, English Hill |
| Paver patio | $26 – $52 per sq ft | Flat back yards |
| Ledger and rim repair found during tear-out | $1,500 – $8,000 | Most original decks |
Redmond's original decks
Decks from this era often share the same problems: a ledger nailed to the house rim without flashing, rot in that rim behind it, joists at 24-inch spacing, posts set in soil, and railings that move when pushed. Tear-out usually reveals some rim or siding damage, which is repaired before the new ledger goes on.
Bigger, better, covered
Replacement is the chance to change the deck. Common Redmond upgrades: a wider deck that fits a table with room to walk around, stairs moved to where people walk into the yard, composite boards that do not need staining, and a screened or covered section for the long wet season.
Redmond deck rules and HOAs
Decks more than 30 inches above grade, attached decks, larger decks and roofed structures need permits through MyBuildingPermit, even when replacing a deck that never had one. Stream buffers limit decks on some lots. Most HOAs review deck materials, colors and railings.
Redmond deck and patio questions
Can I reuse my old deck framing?
Rarely, on original subdivision decks. Most have ledger rot and joist spacing too wide for composite.
Does my replacement deck need a permit if the old one did not have one?
Yes, if the new deck meets any permit trigger.
Will my HOA approve composite?
Most do in approved colors.
Is a screened porch worth it here?
For families who want to sit outside without bugs or rain from spring to fall, yes.