Reglazing Guide
Read all instructions carefully before attempting this procedure. If you have any questions about your ability to
complete this procedure, call Andersen at 1-888-888-7020 for further direction. Andersen WindowCare® service
center hours are Monday through Friday, 7 a.m. to 7 p.m. Central Time and Saturday 8 a.m. to 4 p.m. Central
Time. Thank you for choosing Andersen® products.
Every assembly and installation is different (windloads, structural support, etc.). Andersen strongly recommends
consultation with an Andersen supplier or an experienced contractor, architect, or structural engineer prior to the
assembly and installation of any Andersen product. Andersen has no responsibility in regard to the post-manufactured
assembly and installation of Andersen products.
Use caution when working at elevated
heights and around unit openings.
Follow manufacturers’ instructions
for ladders and/or scaffolding.
Failure to do so may result in injury
or death.
Follow manufacturers’
instructions for hand or power
tools. Always wear safety
glasses. Failure to do so may
result in injury and/or product
damage.
Windows and doors can be heavy. Use
safe lifting techniques and a reasonable
number of people with enough strength
to lift, carry and install window and
door products to avoid injury and/or
product damage.
“Andersen” is a registered trademark of Andersen Corporation. All other marks where denoted are trademarks of Andersen Corporation.
©2012 Andersen Corporation. All rights reserved. Instruction Guide 112849 C Revised 08/24/12
Reglazing Guide
for Andersen® Architectural Casement Windows
(Units manufactured January 2005 to Present)
Parts Included
(1) Instruction Guide
(1) Replacement Glass
(4) Interior Stops (optional)
Tools Required
• Safety Glasses
• Pry Bar
• Caulking Gun
• Miter Saw
• Putty Knife
• Pencil
• Utility Knife
• Hammer
Supplies Required
• Sealant
• 1 ¼" Finish Nails
• Filament or Duct Tape
• Alcohol
• Glazing Tape
• Phillips Screwdriver
• Flat Screwdriver
• Punch
• 1/16" Hex Wrench
• Oscillating Saw
with Hook and
Scraper Blade
Oscillating Saw Scraper Blade
Hook Blade
1
1. Tape Broken Glass
Wear gloves, safety glasses, goggles, or eye shields
when handling glass. Tape broken glass with filament
or duct tape before removal to reduce glass
fragmentation. Failure to do so may result in injury,
product and/or property damage.
• Remove interior removable grille, if present. Keep
grille for reinstallation.
• Tape broken glass with filament or duct tape to
reduce glass fragmentation.
Interior View
Filament or
Duct Tape
Glass
Interior
Removable
Grille
Glass
Suction grips will not
hold if placed over
seam of film to lift or
move unit. Unit will
fall causing damage or
injury.
Sealants will damage
exterior coating on glass.
• Tempered or laminated safety glass is not standard and must be special ordered. Check local building codes.
• Leave protective film in place until after construction is finished.
• Remove protective film within nine months of installation and when temperature is above 32 degrees F.
• Remove protective film from seam or corner using plastic scraper if needed.
• Leave (NFRC) performance label in place until final inspection.
Film
Seam
Suction Grip
Static created when
removing film can ignite
flammable materials or
cause a shock.
See warning label on
glass.
Dispose of film immediately after removal. Film
may pose suffocation hazard to children.
2
Reglazing Guide
2. Remove Sash from Window
• Open Sash.
• Disconnect Operator from Sash by
removing screws from Operator Track
with Phillips screwdriver. Keep screws
for reuse.
• Loosen NRP (non-removable pin) set
screws in Hinges with 1/16" hex wrench.
• Tap out Hinge Pins with punch and
hammer while supporting Sash.
• Set Sash on clean flat work surface
exterior side up.
Windows and doors can be heavy. Use safe
lifting techniques and a reasonable number
of people with enough strength to lift, carry
and install window and door products to
avoid injury and/or product damage.
Units with Butt Hinges
Units with Concealed Hinges
• Open Sash 30º.
• Release Operator Arm Clip from Sash
Bracket using a flat screwdriver. Crank
Operator open.
• Pull back Hinge Arm Clip and remove
Hinge Arm from Hinge Track.
• Hold Sash firmly and slide Upper and
Lower Hinge Shoes from Hinge
Track and remove Sash.
• Set Sash on clean flat
work surface exterior
side up.
Hinge Pin
NRP Set
Screw
Sash
Frame
Hinge Leaf
Interior View
Interior
Exterior
Sash Bracket
Operator Arm Clip
Operator
Exterior
Interior
Hinge Arm Clip
Hinge Track
Sash
Hinge Arm
Hinge Shoe
Units with Butt Hinges
Units with
Concealed Hinges
Operator Arm
3
Reglazing Guide
• Cut though sealant between exterior stop and
glass around entire perimeter of glass.
• Flip Sash interior side up.
• Cut through glazing tape between interior stop
and glass around entire perimeter of glass with
utility knife (or oscillating saw with hook blade).
• Score finish between interior stop and Sash with
utility knife, if interior is finished.
3. Cut Seal Between Glass and Stops
• Insert putty knife between interior stop and Sash
in center of longest interior stop.
• Insert a pry bar behind interior stop against putty
knife.
• Lift the pry bar, pulling interior stop from Sash.
Putty knife is to help protect Sash from damage.
• Repeat process for all interior stops. Remove
curved stops last.
• Remove all nails from Sash and interior stops.
Putty Knife
Interior Stop
Pry Bar
Nail
4. Remove Interior Stops
Existing interior stops can be reused if required.
DO NOT damage interior stops if reusing them.
Interior Stop
Glass
Utility Knife
Sash
Exterior
Stop
Interior
Exterior
Interior Side Up
Interior Stop
Glass
Utility
Knife
Interior Stop
Glass
Utility Knife
Exterior
Stop
Interior
Exterior
Clad Unit
Wood Unit
Sash
Sash
Interior Stop
Pry Bar
Putty Knife
Interior Side Up
Clad Unit
Shown
Interior
Exterior
4
Reglazing Guide
5. Remove Glass
• Remove glass from Sash. Save glazing shims for
reinstallation.
• Scrape old sealant from exterior stop with putty
knife. Do Not damage exterior stop.
Windows and doors can be heavy. Use safe lifting
techniques and a reasonable number of people with
enough strength to lift, carry and install window and
door products to avoid injury and/or product
damage.
Old Sealant
Glazing
Shim
Glass
Exterior Stop
Using New Interior Stops
Reusing Existing Interior Stops
New interior stops are not precut to length. Interior
stops are sent long and must be cut to fit on site.
• Apply glazing tape to new interior stops if needed.
• Miter cut interior stops to fit frame.
• Use old interior stops as guide for length and cut
angle.
• Clean old glazing tape from interior stops using
putty knife (or oscillating saw with scraper blade).
Use alcohol to soften glazing tape if needed.
• Apply glazing tape to interior stop keeping glazing
tape 1/32" from top of interior stop. Trim ends of
glazing tape flush with ends of interior stops using
utility knife.
Interior
Stop
Old
Glazing
Tape
1/32"
1/32"
Putty
Knife
Interior
Stop
Glazing
Tape
Interior Stop
Glazing
Tape
Interior
Stop
Miter
Cut
Clad Unit
Shown
6. Prepare Interior Stops
Sash
Exterior
Interior
5
Reglazing Guide
• Clean new glass with alcohol. Allow alcohol to
dry.
• Apply 3/8" continuous bead of sealant on inside of
exterior stop around perimeter of window. See
drawing for location.
• Place glazing shims along bottom rail of Sash
2" from each side and every 12" between. Reuse
old glazing shims if possible. Do Not use wood
shims.
• Lift glass into Sash and set on glazing shims.
Press glass into sealant until glass is
approximately 1/16" from exterior stop. Do Not let
glass touch exterior stop.
• Install shims between glass and Sash as required
to center glass within Sash. Do Not distort Sash
when installing shims.
• Pull tape backer from glazing tape on interior
stops. Install interior stops against glass.
Secure interior stops in position using 1 ¼" finish
nails. Install curved stop(s) first.
• Clean excess sealant from exterior of glass.
• Apply fillet bead of sealant between glass and
exterior stop.
Sealant must be compatible with all materials it
contacts. Follow sealant manufacture’s
instructions for application of sealant. Failure to
do so may result in water infiltration.
1 ¼" Finish
Nail
3/8" Bead Sealant
Glazing
Shim
Glass Light
Interior Stop
Glazing Tape
Interior
Exterior
Interior
Exterior
Fillet Bead Sealant
1/16"
Exterior
Stop
Glass
Exterior Stop
7. Reinstall Glass
Sash
Identification logo on glass light goes in bottom right
corner viewed from interior.
Identification Logo
Interior View
Clad Unit
Shown
8. Reinstall Sash
• Install Sash into frame by reversing all steps in
Step 2
Sash
6
Reglazing Guide
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