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9. MEASURING TAPE Everything needs to 
measured twice and cut once. Make sure you 
have a good one.
10. BULB LEVEL AND PLUMB LINE - Windows 
and Doors work best when they are plumb and
square. A good bulb level makes sure your work 
is on the level. The “plumb bob” lets gravity make
your work perpendicular.
11. SCREWDRIVERS - Philips head and flat head,
in various lengths and sizes make installation and
adjustment of the new window or door better.and
offers 100% bug-free,  and draft-free ventilation.
12. OSCILLATING MULTI-TOOL -Many top-end
installers wouldn’t be without their oscillating 
multi-function tool. Developed in Europe, it can 
cut glazing putty, clean out between frame and 
old glass for re-glazing. It can even cut flush into
stucco to expose old windows in stucco walls with
minimum damage, to enable better sealing of the 
new window.  
Window Fitters Guide to Window Installation 
3                ©2022 AWDI, LLC Do not reproduce without permission
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Hardware
While most tools necessary for window and door
installation are brought by the installer, mounting
hardware is often supplied with the windows 
themselves.
13. SCREWS whether self-shimming or regular, are
the most often supplied accessory with the window
or door. The important thing is that they be quality
stainless steel There are different grades of stainless,
and the last thing you want besides deteriorating
anchors, is rust stains bleeding through wall board.
14. JAMB CLIPS are used with wood windows to
avoid penetrating the jamb all the way through with
a screw. These clips are screwed to the jamb, and 
then the tab is anchored to the rough opening 
and eventually covered with trim or other finish
materials. For uPVC windows, clips are made to
“snap-in” to a groove in the frame. “Simplex” style
nails are useful for installing pvc windows with fins.
15. SHIMS are now being included with many win-
dows and doors because of the importance of proper 
shimming. Each installer should have a ready supply
of shims because each installation situation can be
different and too few shims would not be advisable.
Other hardware may or may not be required, 
and/or supplied. Check with the brand you want 
to buy and/or install for their complete list.
SAMPLE MANUAL

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