Patio Door Replacement in Issaquah, Bellevue & Sammamish

The patio door is the hardest-working opening in most homes. It is used more than the front door, it is the biggest single piece of glass in the house, and when it starts dragging on its track or fogging between the panes, you notice it every day.

It is also the job our customers mention most often in their reviews.

The doors we replace

Sliding doors

The default in most East King County homes, and the right answer when floor space is tight — nothing swings into the room or onto the deck. Modern rollers and a properly prepared sill are the difference between a door that glides for twenty years and one that fights you after two.

French doors

Two hinged panels that open wide. Better for a formal elevation and for moving furniture, and they seal well because they close against a frame rather than sliding past it. They need swing clearance on one side.

Single-panel swing doors

A single hinged glass door — not quite a patio door, not quite an entry door. Common on a deck, a side yard, or anywhere a full patio door would be too much opening. If you are replacing a back door rather than a patio slider, this or an entry door is usually the right shape. See front, back and side doors.

Folding and stacking doors

Multiple panels that fold back or stack to one side, opening most of a wall to the outside. The most dramatic thing you can do to a room that faces a garden or a view. It is a structural conversation as much as a door one, and we will tell you honestly whether your opening supports it.

Materials

• Vinyl — the most common choice for sliding patio doors. Efficient, low maintenance, cost-effective.
• Wood — for period homes and interiors where the sightline matters. Needs a protected opening.
• Fiberglass — will not warp, rot or swell, and holds a dark exterior colour without trouble.

See more patio door projects in our gallery

Signs yours is due

• It drags, sticks, or needs a shoulder to move
• The glass is fogged or hazy between the panes — a failed seal, which cannot be cleaned
• You can feel a draft along the track or the meeting stile
• Condensation collects on the inside of the glass in winter
• The lock no longer lines up, or the door has to be lifted to latch

If the frame is sound and only the sealed unit has failed, we can sometimes replace the glass alone. We will tell you which job you actually need.

What it costs

Price moves with the opening width, the number of panels, the material, the glass package and the hardware. A standard two-panel slider and a four-panel folding wall are different projects entirely, so we quote yours rather than publishing a number that would be wrong.

You get an exact figure at the consultation, with no obligation. Financing is available.

PSE rebates. Patio doors are rated on their own U-factor band — 0.31 to 0.35 for the standard tier, 0.30 or lower for the upgraded tier. If PSE is your primary heat source you may qualify when replacing single-pane units. We spec to the rebate and help you file. Programme runs through 31 December 2026.

Where we work

Issaquah, Sammamish, Bellevue, Redmond, Renton, Bothell, Kirkland, Woodinville, Snoqualmie and the surrounding communities. See all service areas →

Get a free quote or call (425) 526-6810.

Frequently asked questions

Can you replace the door without replacing the frame?

Sometimes. It depends on the condition of the existing frame and sill, which is the first thing we check. Where the frame is sound it is a smaller and cheaper job.

Sliding or french — which is better?

Neither, in the abstract. Sliding wins on space, french wins on width of opening and on how it looks from the room. The deciding factor is usually whether you have clearance for a swing.

Will a new patio door help with noise?

Noticeably, yes. It is the largest piece of glass in the house, so it is doing more of the acoustic work than any single window.

Do you replace just the rollers?

We replace doors rather than service them. If the door is only a few years old and the rest of it is sound, we will say so rather than sell you a new one.

What is a patio door?

A patio door is a large glazed door that connects a living space to a deck, patio or garden. The common types are sliding doors, where one or more panels run on a track; French doors, where two panels swing on hinges; single-panel swing doors, which are a wide entry door with glass; and folding or stacking systems, which collect several panels to one side to open most of the wall. All of them are doing two jobs at once — a door and a window — which is why the glass and the weather seal matter as much as the hardware.

How wide is a standard patio door?

Two-panel sliders are most commonly 60, 72 or 96 inches wide, and French doors are usually 60 or 72. Standard heights are 80 or 96 inches. “Standard” is a starting point, not a promise — older homes and custom builds are frequently neither, and a door ordered to a catalogue size for an opening that is half an inch out will not seal. We measure the actual opening rather than assuming it matches a stock size.

Book a free measure