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Question DetailsAsked on 6/1/2011

Who to call for leaking windows

I have two windows (one in each room) that is on the same outside wall. The windows have developed leaks with the heavy rain we had. Who do I call? A roofer? I am afraid that even if its not the roof someone will take advantage (single lady) to tell me I need roofing. I feel it may be the cedar shakes since it only happens during a heavy rain with a lot of wind. What are your suggestions?

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3 Answers


My first call would be to whom ever the responsible party should be. example windows leaking call the window company that installed them, If its your siding call the siding contractor and if its your roof, call the roofing company that installed that for you. If these are honest companys they should come out and check to see whats wrong with out charging a service fee. If all these items came with the home you purchased contact the builder.

Answered 9 years ago by the new window man


Windows may leak or develop leaks if they're not installed perfectly, i.e. level and plumb. A poor installation will cause the window components, including weather stripping to be mis-aligned and therefore allow water leakage.
You can check this yourself using a 2' level. Hold the level against the side vertical rails of the window and if they're fairly far out of plumb, then that may cause a leak.
If you've had a lot of settling in your home, then that may cause the windows to mis-align and cause leaks just like a poor installation would.
Another cause of window leaks would be a lack of proper flashing above the windows. There should be sort of a "Z" shaped metal flashing out the outside of your home that tucks up behind the siding, bends across the top of the window itself, or above the horizontal trim board above the window. The flashing should then bend down the trim board by about 1/4". Properly installed flashing can prevent many window leaks.
Another possible fix would be to make sure the windows and adjacent siding/trim boards are all fully caulked. Exterior caulking is one of the most neglected items in home maintenance and it should be checked and repaired every couple of years or so.
You didn't say where the windows were leaking from (i.e. from the top, the sill area etc.). Without looking at it, I would suggest that you check to make sure the windows are installed level and plumb first. Then check the flashing and caulking.
These items will repair almost all window leaks. It's actually pretty rare that a roofing problem will cause a window leak without causing other damage such as stained drywall on the ceiling near the leak area.

Source: J. G. Hamm Construction - Ypsilanti, Michigan

Answered 9 years ago by JGHamm


I would call someone who installs windows for a living and have them come out. that's what I do for work. You can call me if you need help 206-979-5965 or I can recommend a company.

Answered 9 months ago by David206

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