Covered Patios in Kirkland & the Eastside
A covered patio is the single change that turns a Northwest deck or patio from a three-month space into a ten-month one. An attached patio cover on the Eastside costs $90 to $180 per square foot installed, depending on the roof style, the ceiling finish and what goes under it: heaters, lights, fans and a television are wired in the frame, not added later.
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Roof styles
| Roof | How it looks | Light underneath | Installed range |
|---|---|---|---|
| Gable roof matching the house | Extension of the home, vaulted ceiling | Darker; skylights help | $120 – $180 per sq ft |
| Shed (single slope) roof | Clean, modern, ties under eaves | Moderate | $90 – $150 per sq ft |
| Clear polycarbonate or glass roof on timber | Open, bright | Full daylight | $95 – $160 per sq ft |
| Louvered aluminum roof | Adjustable slats, closes watertight | Adjustable | $110 – $170 per sq ft |
The roof over a covered patio must carry the city's design snow load, tie into the house without trapping water at the wall, and drain somewhere other than the patio. Those three details decide whether it looks built-in or bolted-on. How the other roof types compare is in Covered Patio Options Compared.
Under the roof
- Ceiling: tongue-and-groove cedar or pine, painted beadboard, or exposed rafters.
- Heat: ceiling-mounted electric infrared heaters, sized for the space and wired to their own circuits.
- Light: recessed or surface-mounted wet-rated fixtures on dimmers.
- Air: a wet-rated ceiling fan.
- Media: a recessed outlet and conduit for a weather-rated television.
- Walls: optional privacy screens, retractable shades, or glass panels on the weather side.
How we build it — covered patio
- Design and engineering: post spacing, beam and rafter sizes for snow and wind, connection to the house framing.
- Permit: covered structures require one in every city we serve.
- Footings and posts: concrete footings, post bases that keep wood off concrete.
- Beams, rafters and roof sheathing; flashing into the house wall or under the existing roof.
- Roofing: shingles or standing-seam metal to match the house, or the polycarbonate, glass or louver system.
- Gutters and downspouts routed to drainage.
- Electrical rough-in, ceiling finish, fixtures, heaters.
Two to four weeks on site for a typical 200 to 400 square-foot cover, after the permit is issued.
A covered patio we built
Covered patio questions
Will a covered patio make my house darker inside?
A solid roof over a living-room window reduces daylight in that room. Clear roof panels, skylights or a louvered system solve it; we model the effect in the 3D plan.
Can a cover go over my existing deck?
If the deck framing and footings can take the added load at the post locations, yes. Usually new footings go in beside or through the deck for the roof posts.
How do infrared heaters perform?
They warm people and surfaces rather than the air, which is what works outdoors. On a covered patio with one or two walls, they make a 45-degree evening comfortable.
Does the roof need to match the house roof?
It reads best when it does, in pitch and material, or when it is clearly different on purpose, such as a low-slope metal roof under the eaves.
Do I need a permit?
Yes, in every Eastside city and Seattle. The drawings show the structure, the snow load and the house connection.
Tell us which door the patio sits outside. We will bring three roof options to the visit.