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First decide whether you need to remove only the crank-out sash—the panel that opens—or the entire window and frame. Those are different jobs. For an Andersen 400 Series casement, Andersen’s instructions say to open the sash about 30 degrees, support it continuously, release the operator arm, remove specified hinge screws, and slide the hinge shoes off their channels. That sequence is model-specific; identify your window and hardware before using it.
Choose what you are removing
A crank-out window has an opening sash attached to an operator and hinges. Removing that sash does not necessarily mean removing the frame from the wall.
| Approach | What comes out | What remains |
|---|---|---|
| Sash removal | The opening sash is detached from its operator and hinges. | The window frame remains in place. |
| Pocket replacement | The existing sashes, stops, and hardware are removed for a replacement installed within the existing opening. | The existing wood frame remains, if it is appropriate for the installation. Pella’s overview does not determine whether a particular frame is suitable. |
| Full-frame replacement | The entire window frame and sash are removed. | The old frame does not remain in the opening. |
Andersen distinguishes full-frame replacement from retaining an existing frame, while Pella describes pocket replacement in an existing wood casement or awning frame. Decide the project scope before removing trim or prying at the frame.
Before you start
- Identify the manufacturer, series, and operator and hinge arrangement. The detailed steps below are for Andersen 400 Series casement windows manufactured from 1966 to the present, not a universal method for all crank-out windows.
- Keep the sash supported throughout the work. Andersen warns that releasing the operator arm can let the sash swing freely and break free.
- Use care around glass and follow the tool maker’s instructions. Crestline’s separate casement-replacement instructions recommend safety glasses and careful sash movement to reduce the chance of glass breakage.
- At an elevated opening, take precautions against falls and do not leave the opening unattended, especially where children are present. Andersen warns that a fall from a window opening could cause serious injury or death.
Stop if the hardware is concealed, damaged, painted in, or unlike the manufacturer’s instructions. The documented instructions do not establish a safe workaround for an unidentified or damaged assembly. A flat-blade screwdriver is specified for releasing the Andersen operator-arm clip; hinge screws also have to be removed. Other fasteners and tool needs can vary.
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#1 Best Overall
25-5 2550 Window Balance Spring Replacement, Overall Length 27", Block and Tackle Cartridge Channel Balance, CWH Premium Window Balancer Replacement, Stamped Size 25-5
- EXACT DIMENSIONS SHOWN IN PICTURES: One (1 ea.) 25-5 or 2550 window sash balance; Overall Length Including Plastic Guides: 27 Inches; Metal Channel Length 26 Inches; Designed to support a 25 - 31 pound sash per pair. Block and tackle window balance replacement can easily be done in a few minutes per window! Cottonwood Hardware Window Parts come with the answers to your questions. We ship each window channel balance order with illustrated installation instructions and if you additional help, we will do whatever it takes to help you succeed!
- PLEASE LOOK CLOSELY AT THE IMAGE PROVIDED for your balance selection before finalizing your order. Identify your balances by the number stamped or printed on the window sash spring channel. Our cartridge window sash lift balances have winged end brackets, which provide stable operation and a smoother slide. If your coil spring window balance does not have these wings, our balance will still work and possibly work better than your original balance.
- The size of your block and tackle window balance springs are written as two numbers that represent the length of the metal channel (not including the plastic ends). This is followed by one or two numbers that represent the spring weight also known as the carrying capacity. Cottonwood Hardware window block and tackle sash balance s work in many brands of windows such as: milgard, jeld-wen, MI, Certainteed, CRL Windows, AMSCO, Jeld Wen, Alpine, Alenco, General Aluminum, BSI, and so many more!
- Cottonwood Hardware Block and Tackle Window Spring Balance s come with detailed installation instructions written by experts with decades of experience in the selling and installing window replacement parts. We provide you with expert tips and tricks so you will have the best outcome.
- Window channel balances fail over time even if the window is not used frequently and are simple to replace. DIY window springs replacement will save you hundreds of dollars per window and can be completed by almost anyone in minutes! Replacement window parts can be hard to identify but we are here to help!
Remove an Andersen 400 Series casement sash
Use this sequence only when the window and hardware match the Andersen 400 Series instructions. Have a helper assist with a large or heavy sash so it remains controlled while disengaged.
- Open the sash to about 30 degrees. Remove the stopper screws from the top and bottom hinge channels.
- Support the sash continuously. Use a flat-blade screwdriver to release the operator-arm clip from the sash bracket. If there is a control bracket, remove its screw and slide the bracket off the hinge plate.
- Remove the hinge screw from each of the top and bottom hinge arms and the window frame. Crank the operator open to clear the sash.
- Hold the sash firmly and slide the top and bottom hinge shoes off the ends of their hinge channels. Remove the sash and place it on a flat work surface with the interior side facing up.
Keep removed fasteners if they are needed for the repair or the next installation step. Use the manufacturer’s illustrated instructions to confirm the parts and their positions before proceeding.
Rank #2
26-4 2640 Window Balance Spring Replacement, Overall Length 28", Block and Tackle Cartridge Channel Balance, CWH Premium Window Balancer Replacement, Stamped Size 26-4
- EXACT DIMENSIONS SHOWN IN PICTURES: One (1 ea.) 26-4 or 2640 window sash balance; Overall Length Including Plastic Guides: 28 Inches; Metal Channel Length 27 Inches; Designed to support a 19 - 26 pound sash per pair. Block and tackle window balance replacement can easily be done in a few minutes per window! Cottonwood Hardware Window Parts come with the answers to your questions. We ship each window channel balance order with illustrated installation instructions and if you additional help, we will do whatever it takes to help you succeed!
- PLEASE LOOK CLOSELY AT THE IMAGE PROVIDED for your balance selection before finalizing your order. Identify your balances by the number stamped or printed on the window sash spring channel. Our cartridge window sash lift balances have winged end brackets, which provide stable operation and a smoother slide. If your coil spring window balance does not have these wings, our balance will still work and possibly work better than your original balance.
- The size of your block and tackle window balance springs are written as two numbers that represent the length of the metal channel (not including the plastic ends). This is followed by one or two numbers that represent the spring weight also known as the carrying capacity. Cottonwood Hardware window block and tackle sash balance s work in many brands of windows such as: milgard, jeld-wen, MI, Certainteed, CRL Windows, AMSCO, Jeld Wen, Alpine, Alenco, General Aluminum, BSI, and so many more!
- Cottonwood Hardware Block and Tackle Window Spring Balance s come with detailed installation instructions written by experts with decades of experience in the selling and installing window replacement parts. We provide you with expert tips and tricks so you will have the best outcome.
- Window channel balances fail over time even if the window is not used frequently and are simple to replace. DIY window springs replacement will save you hundreds of dollars per window and can be completed by almost anyone in minutes! Replacement window parts can be hard to identify but we are here to help!
When the frame is part of the replacement
For a pocket replacement, Pella’s overview describes removing the existing sashes, stops, and hardware, then installing the replacement in an existing wood casement or awning frame. Whether that frame is sound and suitable depends on its actual condition and the chosen installation method; the overview cannot assess an individual opening.
A full-frame replacement removes the entire frame and sash, according to Andersen’s description. If you are unsure whether the frame should stay, or whether it is suitable for a pocket installation, establish the scope and assess the frame before dismantling the opening.
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Rank #3
Prime-Line Vinyl Window Sash Lock, 2-1/16 in. Hole Centers, White (1 Set)
- Ideal Use: Replaces worn, loose, or missing sash locks on single- and double-hung vinyl windows to restore security and proper operation
- Dimensions & Compatibility: Fits windows with flush-mounted meeting rails and 2-1/16 in. mounting hole centers on both the lock and keeper
- Materials & Components: Durable diecast zinc construction with a white-painted finish; includes one lock, one keeper, and mounting fasteners
- Key Features: Cam-action design pulls the sash and keeper together for a tighter seal, improved insulation, and reduced drafts
- Fit Guidance: Designed for compatible vinyl window systems and is not universal; verify dimensions and hole spacing before purchasing
When to stop and get model-specific help
- You cannot identify the manufacturer or match the operator and hinge hardware to its instructions.
- The release mechanism is damaged, stuck, painted over, or different from the documented arrangement.
- You cannot keep the sash controlled while releasing the operator or hinges.
- You are uncertain whether the job calls for sash removal, pocket replacement, or full-frame replacement.
For an unidentified or damaged window, consult the matching manufacturer instructions or a qualified window professional rather than improvising a release method.
Quick Recap
Best Value
Window Sash Locks, 2 PCS Window Latches Replacement, Window Locks for up and Down Windows, Replacement Window Locks for Vertical and Horizontal Sliding Windows
- You will get: The package has 2 pieces of window locks with 8 screws, suitable for horizontal and vertical sliding windows, single-hung windows and double-hung windows, storage cabinets, etc., which can meet various uses and replacements in your daily life
- Cam Action Hook Design: The cam action sash lock features a cam action hook that holds the latches tightly when locked. The body of the window safety lock has anti-pry studs, installing this window lock on the window can prevent uninvited guests from breaking in. Your home is safer and more comfortable
- Easy To Install: When you receive the window locks, first determine the installation position of the window locks and mark them, you need to use a 3mm electric drill to drill holes on the edge of the window, then install the lock buckle and tighten the lock body
- Safe and Premium Material: The window locks are made of high-quality zinc alloy material, and the appearance adopts multi-layer electroplating process to make the window locks anti-corrosion and can be used for a long time
- Widely Used: Window latches can be used on left and right windows, widely used in vertical and horizontal sliding windows, single hung windows, double hung windows, wooden cabinets etc, effectively helping you manage home security
Rank #4
Prime-Line Cam Action Window Sash Lock, Antique Brass, 1-3/4 in. Centers
- Ideal Use: Replaces worn or damaged sash locks on single- and double-hung vinyl windows to restore security and proper operation
- Dimensions & Compatibility: Features 1-3/4 in. mounting hole centers; designed for compatible single- and double-hung vinyl window systems
- Materials & Components: Durable diecast construction with antique brass finish; includes sash lock, keeper, and mounting hardware
- Key Features: Cam-action hook draws the sash tightly against the keeper, while anti-jimmy studs help improve window security
- Fit Guidance: Installs with a Phillips head screwdriver; verify mounting hole spacing and dimensions before ordering
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
