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Question DetailsAsked on 10/3/2017

Is it possible to change the window panels to sliding door in prefab modular panel sunroom?

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Almost always yes, assuming you mean the glazing units - the internal aluminum glazing frame (which holds the glass) and the glass itself in multi-pane doors, or the sheet of glass in single-pane units (which are real rare these days). Sometimes the glazing unit (glass and glazing or mounting crimped aluminum frame which fits inside the door frame) can be taken out by removing a sealing/lock strip around it (almost always on the outside) and cutting the caulk and tilting it out of the door frame. Other times, and more commonly with prefab modular construction, the actual door has to be lifted out or a retaining guide strip removed (usually takes a few minutes to figure out how it is designed to release and come out and whether it comes in or out - at least 5 different ways I have seen to remove a sliding glass door from the outer door frame, and some like mine the door comes out to the inside but the fixed unit comes out to the outside after removing any sliding screen door guide strips) and the door (or fixed panel) tilted into the room, then frame screws taken out to partly disassemble the door unit frame to change out the glazing unit.

Obviously, because you are talking a large glass area and safety glass (by law for sliding glass doors), not cheap - can sometimes cost as much to replace sliding glass door glass as a new door unit costs because the glass itself is commonly $15-25/SF of door glass expanse, or say about $300-500 just for the glazing unit depending on number of layers of glass and any special coatings or films on it. But since installation of a totally new door unit is commonly 1/2-3/4 the cost of a new sliding glass door unit installation, glass replacement (to repair broken glass or a leaking seal in a double or triple-pane window which is causing fogging/streaking between the panes) should still be a good deal cheaper than the typically $1000-3000 for a totally new door installation, assuming it is in decent shape.

Sliding glass door glass replacement, assuming no difficult access problems and not one of the few newer units designed not to ever by taken apart and replaced (showing up in some vinyl and fiberglass windows), commonly runs in the $400-700 range per door (so $700-1200 range if both sides need replacing at same time - the sliding and fixed unit both. Might get it down into the $300-400 range for a single pane door, but I would not count on it - especially if the glass unit has to be shipped in from a distance away (ours come from about a thousand miles away, for instance).

Note these prices are a lot higher than in some of the links below - including some of my prior answers - because window glass and window prices have really shot up in the past couple of years - almost 100% in our area.

Some Window companies do this, but normally Glass and Mirror would be the Search the List category to find well-rated glass replacement companies to do this job.

Here are links to several related and similar previous questions FYI:

Answered 3 years ago by LCD

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