Sliding Patio Doors in Los Angeles & the San Gabriel Valley

Most patio door problems come down to one worn part. The rollers under the sliding panel flatten or seize, the aluminum track wears into a groove, the mortise lock inside the handle breaks, or the dual-pane glass fogs or cracks. Each can be fixed on the door you have. When the frame is bent or the track is worn past saving, we replace the whole door with a new Milgard sliding patio door.

Roller and lock repairs are usually done in one visit; glass replacement in an existing slider is typically 1-2 days for common sizes. Estimates are free, on site or from a photo, from a family-run shop in Rosemead licensed C-17 #1007507 and fully insured. We speak English, Tiếng Việt and 中文.

Patio door repairs and installs

Repair or replace: how we decide

A roller repair starts with lifting the sliding panel out of the frame. We remove the old rollers from the bottom of the panel, fit new ones of the same style and height, clean the track, set the panel back in and adjust it so it sits level and the latch lines up with the keeper. On most doors this is done in a single visit; if the roller style is unusual we photograph it, order the match and come back.

The track tells us whether the door is worth saving. An aluminum track worn into a groove can often be fixed with a stainless steel track cap, which gives the new rollers a smooth surface to ride on. Once the track is worn through or bent, or the frame has twisted so the panel will not stay square, new rollers will wear out again quickly. At that point we recommend a new door and show you why on site.

For replacements we install Milgard sliding patio doors: vinyl frames in white and other exterior colors, or thermally improved aluminum with slim sightlines, both with tempered dual-pane Low-E glass. A retrofit patio door fits inside the existing frame the way a retrofit window does, so the stucco and interior trim stay as they are.