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Sliding Glass Door Installation

If your sliding glass door leaks, sticks, or has drafts, you should consider replacing it. If you’d like to tackle the job yourself, here are the steps Peak Custom Remodeling recommends to get it done right the first time. Take note: only experienced DIY-ers should try this project, with at least one other person to help.
sliding glass doors

Choose the right materials.

Sliding glass doors come in various materials, such as wood, steel, and vinyl. Your chosen material will depend on your style, climate, and budget.


You can find the necessary tools and materials in most home and building supply stores and order them online. Be sure you have correctly measured the opening to get the right size.

Remove the old sliding glass door.

Pry off any exterior trim pieces and remove the old door panels one at a time before removing the frame. Remove the panel and bottom track where the sliding panel wheels rest.

Apply flashing and adhesive.

Clear out any dust and debris, and check that the floor under the door is level. You can correct it with shims placed under the sill if the floor is not level. Fill spaces with caulking.

Apply flexible flashing under the doorsill and a couple of inches up the side. Then, caulk the doorsill and rest it directly on the flashing, or add a “sill pan” for additional protection against moisture. Apply adhesive.

Place the new door.

Based on the manufacturer’s instructions, have at least one other person help you place the new door frame. If the door is not level, add shims around the door and secure the frame to the lumber with 2.5-inch wood screws.

Tip the stationary panel into the opening, then install any required angle clips, weather-stripping, or trim. Then, rest the sliding panel wheels on the tracks and place the sliding panel into the opening. One person should hold it while the other screws in the head stop.

Finish the small details

Once you’ve made sure the panels are even and slide smoothly, it is time to install the handle and lock. Add fiberglass insulation around the frame and filler strips to the exterior if necessary.

Not sure the job is for you?

If you’re a busy homeowner who would rather have a professional door contractor install your sliding glass doors, contact Peak Custom Remodeling today!


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