| Replacement Casement Sashes

Replacement Sash Note: Casco replacement casement sashes are sash-only products. The existing frame remains in place, and existing hardware is reused. Existing frame condition, hardware condition, sash fit, operation, water management, and field conditions must be reviewed before ordering.

• New replacement sash with extruded aluminum cladding.
• Treated pine interior.
• Cardinal insulated glass with 20-year glass warranty.
• Basic perimeter weatherstripping.
• Series-specific sash construction based on the existing window application and project requirements.

• Hardware: Casco replacement casement sashes do not include new operating hardware. Existing hardware must be reused when compatible and functioning properly.
• Window Frame: The original frame remains in place.
• Opening Control Devices / Limiters: Opening control devices and sash limiters are not included.
• Frame Repair: Existing frame repair, sill repair, trim work, and field modifications are not included with the sash.
• Field Labor: Field measurement, removal, installation, adjustment, sealing, finishing, and related field labor are handled by the installer or project team.

• Existing frame condition must be reviewed before choosing sash replacement.
• Existing hardware must be reviewed for compatibility and proper operation.
• Replacement sashes are not a substitute for full-frame replacement when the existing frame is damaged, out of square, leaking, or unsuitable for reuse.
• Glass package selection must be reviewed against applicable project energy requirements before ordering.
• Field measurements must be accurate because the replacement sash is built to fit the existing window condition.

For double-hung window openings, review Casco Aluminum-Clad Double-Hung Replacement Kits. Replacement casement sashes are used for compatible casement, awning, and picture window applications, while double-hung replacement kits are used for compatible double-hung window applications.

For full window replacement, review Casco Aluminum-Clad Casement Windows and Casco Aluminum-Clad Double-Hung Windows.

Warranty Note: Casco replacement casement sashes are covered in the same manner as Casco aluminum-clad products, including the applicable Cardinal 20-year insulating glass warranty, finish warranty coverage, and warranty coverage against water intrusion through the sash itself.

The warranty does not cover fitment of the replacement sash into an existing frame, existing frame condition, existing hardware, field installation, field adjustment, or air and water infiltration caused by the sash-to-frame fit after installation.

The installing party is responsible for confirming the existing frame is suitable to reuse, transferring and adjusting existing hardware, installing the sash properly, and verifying the final sash-to-frame fit and seal against air and water after installation.

Glass Selection Note: Replacement sashes can use the same Cardinal glass options available with Casco aluminum-clad windows, but the sash itself is not a complete rated window product. Glass U-values and glass performance information can be provided to help select a glass option, but a complete product energy rating is not available for the replacement sash by itself.

Base Glass Configuration

The base glass configuration for Casco Aluminum-Clad Replacement Casement Sashes is clear insulated glass with air fill. This base configuration may be used when the project does not require a specific Low-E package and the purchaser’s project requirements allow it.

Clear glass allows strong visible light, but it does not provide the same solar control, UV protection, or glass U-value performance as Low-E glass packages. When a project has a specific glass-performance need, Low-E glass package selection should be reviewed before ordering.

Replacement Sash Energy Rating Note

• Replacement casement sashes are component parts used within an existing frame.
• Replacement sashes are not complete rated window units.
• Complete product U-factor, SHGC, visible transmittance, and condensation resistance ratings are not available for the replacement sash by itself.
• Glass U-values and other glass performance information can be provided to assist with selecting a glass option.
• Glass performance values are glass-package references only and are not a full product rating for the installed replacement sash and existing frame condition.
• The purchaser or project team is responsible for selecting the glass package needed for the project requirements.

• U-factor measures heat flow through a window assembly. A lower U-factor means better resistance to heat loss. Replacement sashes do not have complete product U-factor ratings by themselves.
• SHGC measures how much solar radiation enters as heat. A lower SHGC helps reduce solar heat gain. Replacement sashes do not have complete product SHGC ratings by themselves.
• Visible Transmittance measures how much visible light passes through the glass. A higher visible transmittance means more daylight.
• UV transmission relates to fading protection. Lower UV transmission helps reduce fading potential for furniture, flooring, fabrics, artwork, and interior finishes.
• Glare control reduces harsh visible light in direct sun conditions.
• Privacy control can be handled through obscure glass, CLiC switchable privacy glass, or blinds-between-glass depending on whether the project needs permanent privacy, on-demand privacy, or integrated blind operation.

Laminated Glass

Laminated glass is available for Casco replacement casement sashes. Laminated glass can be ordered with the same Cardinal LoE glass options when the project requires laminated glass along with a specific Low-E package.

Laminated glass is commonly reviewed when the project requires added safety, sound control, security considerations, impact resistance considerations, or project-specific glass requirements. The correct laminated glass configuration should be reviewed with the required Cardinal LoE coating, glass performance needs, unit size, project location, and applicable code requirements before ordering.

Obscure Glass

Obscure glass is available for replacement casement sashes. It is commonly used in bathrooms, mud rooms, utility areas, and other locations where privacy is needed while still allowing light into the room.

CLiC Switchable Privacy Glass

CLiC switchable privacy glass is available where size, product configuration, wiring, project requirements, and availability allow. CLiC glass is used when the project needs on-demand privacy instead of permanent obscure glass or a traditional window treatment.

CLiC glass switches between clear and private. It is useful for bathrooms, bedrooms, offices, conference rooms, street-facing windows, side yards, and other openings where the customer wants privacy control while still allowing natural light into the space.

Because CLiC is a specialty glass option, electrical requirements, lead time, sash size, glass package, project requirements, and final application details must be reviewed before ordering.

Blink / ODL Blinds-Between-Glass

Blink / ODL blinds-between-glass options are available where size, product configuration, glass package, and project requirements allow. These options place the blind inside the insulated glass unit, helping protect the blind from dust, damage, and exposed cords.

Blinds-between-glass options must be reviewed for available sizes, glass type, Low-E requirements, operation type, warranty, lead time, and the purchaser’s required glass performance before ordering.

• Replacement sashes are available with the same Cardinal glass options offered with Casco aluminum-clad windows, where series, size, and project requirements allow.
• Clear insulated glass with air fill is the base glass configuration.
• LoE options are available when the project requires improved glass performance.
• LoE³-366^® is commonly used for balanced energy performance and clear appearance.
• LoE³-340+ is commonly used for direct sun and glare control.
• Quad LoĒ-452+ is commonly used for strong solar control with a clear, neutral appearance.
• LoE-i89 combinations are commonly used for improved winter thermal performance, northern climates, and lower glass U-value requirements.
• Laminated glass is available with the same Cardinal LoE options.
• Specialty glass and blinds-between-glass options must be checked against size limits, glass package availability, lead time, and project requirements.
• Replacement sashes are component parts and do not have complete product U-factor, SHGC, visible transmittance, or condensation resistance ratings.
• Glass U-values and glass performance information may be provided to assist with glass selection only.
• The purchaser or project team is responsible for selecting the glass package needed for the project.

Important: Casco manufactures the replacement sash only. No new frame is supplied. No new operating hardware is supplied. The purchaser and installer are responsible for selecting the correct sash series, providing accurate measurements, confirming the existing frame is in good condition so it can be reused, confirming the existing hardware is in working order so it can be transferred to the new sash, and completing the installation.

Before placing an order, confirm the replacement sash will work for the existing window condition. Casco supplies the custom sash based on the order information provided. The purchaser and installer take responsibility for the existing frame, existing hardware, measurements, installation method, and final fit.

• Confirm the existing frame is in good condition so it can be reused.
• Confirm the existing hardware is in working order so it can be transferred to the new sash.
• Confirm the correct replacement sash series: N-Series, D-Series, or L-Series.
• Confirm the correct measurement points for the selected series.
• Confirm the sash type: casement, awning, or picture/fixed sash.
• Confirm the selected glass package meets the purchaser’s project requirements.
• Confirm the selected exterior color, interior finish, grille layout, and weatherstrip details.
• Confirm the installer can complete any field adjustment, sealing, finishing, and installation work required.

Replacement sash measurements must be taken from the correct points for the selected sash series. N-Series, D-Series, and L-Series are not the same profile, and N-Series and D-Series do not have the same profile detail around the full perimeter.

• Identify the correct sash series before final measurement.
• Use the correct measurement points for that sash series.
• Measure each sash being replaced instead of assuming all openings are identical.
• Confirm whether the sash is operating or fixed.
• Confirm the existing frame is in good condition so it can be reused.
• Confirm the existing hardware is in working order so it can be transferred to the new sash.
• Provide photos when needed to help identify the existing sash profile, hardware, weatherstrip area, or frame condition.

Measurement Responsibility: Field measurements are the responsibility of the party ordering or installing the sash. Incorrect measurements, wrong series selection, hardware incompatibility, or unsuitable existing frame conditions can prevent proper fit or operation.

Casco replacement casement sashes are for compatible casement, awning, and picture window applications. For compatible double-hung window openings, review Casco Aluminum-Clad Double-Hung Replacement Kits.

Each replacement product has its own ordering requirements, measurement points, frame requirements, and installer responsibilities.

Downloadable Resources

Use this document to review Casco replacement casement sash product information, series details, available options, and general ordering support.

Related options include Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Double-Hung Replacement Kits, Aluminum-Clad Patio Doors, and Architect-Specified Windows & Doors.

These products may be useful when the existing frame is not suitable for sash-only replacement, when the project requires a full window replacement, or when the project includes multiple Casco aluminum-clad product types.

Quick Summary: Casco replacement casement sashes are sash-only products. They include a new aluminum-clad sash with treated pine interior, Cardinal insulated glass, and series-specific weatherstrip. They do not include a new frame, new operating hardware, opening control devices, field labor, frame repair, or installation. Existing hardware must be in working order so it can be transferred to the new sash, and the existing frame must be in good condition so it can be reused. Casco does not confirm or guarantee fit from photos or dimensions. Replacement sashes are component parts and do not have full product energy ratings; glass performance values may be provided only to assist with glass selection.

A replacement casement sash is the sash portion of the window that holds the glass. For operating casement and awning applications, the sash works with the existing window frame and existing operating hardware. For picture or fixed applications, the sash replaces the fixed sash within an existing compatible frame condition.

Casco Aluminum-Clad Replacement Casement Sashes are custom sash-only products manufactured from the series, measurements, and options supplied with the order.

A replacement sash can be a cost-conscious way to update an older wood window when the existing frame is still in good condition. It allows the customer to update the sash, glass, exterior cladding, grille layout, and appearance while leaving the existing frame in place.

This approach can reduce disruption compared with full-frame replacement, but it depends on the existing frame being suitable for reuse and the existing hardware being suitable to transfer.

Casco replacement sashes are commonly reviewed for compatible wood casement, awning, and picture window applications. The correct series and sash type must be selected based on the existing sash profile, existing frame, existing hardware, and field measurements.

No. Full window replacement replaces the window unit and frame. Replacement sash work keeps the existing frame in place and replaces only the sash. If the existing frame is damaged, out of square, leaking, deteriorated, or otherwise unsuitable for reuse, sash-only replacement may not be the right solution.

Casco supplies the custom replacement sash manufactured from the series, measurements, and options provided with the order. Depending on the selected series and options, the replacement sash includes the sash itself, extruded aluminum cladding, treated pine interior, Cardinal insulated glass, and series-specific weatherstrip.

No. Casco replacement casement sashes are sash-only products. No new frame is supplied. The existing frame remains in place and must be in good condition so it can be reused.

No. New operating hardware is not supplied with Casco replacement casement sashes. Existing hardware must be in working order so it can be transferred to the new sash.

The purchaser and installer are responsible for confirming that the existing hardware is compatible, functional, and suitable to reuse before ordering.

No. Opening control devices and limiters are not included. Any opening control device, limiter, field safety requirement, or code-related hardware requirement is handled by the purchaser, installer, or project team.

Removal, installation, adjustment, sealing, finishing, trim work, field modifications, frame repair, sill repair, and hardware adjustment are not included with the replacement sash. These items are handled by the installer or project team.

The existing frame must be in good condition so it can be reused. The purchaser and installer should confirm the existing frame, sill, exterior condition, interior condition, water management, and opening condition before ordering.

A replacement sash does not correct a damaged, rotted, out-of-square, leaking, or otherwise unsuitable existing frame.

The existing hardware must be in working order so it can be transferred to the new sash. This includes confirming the operator, hinges, locks, and any required hardware components are functional and compatible with the selected replacement sash.

If the existing hardware is damaged, missing, worn out, or incompatible, that must be addressed by the purchaser, installer, or project team.

No. A replacement sash does not correct bad frames, poor installation conditions, damaged hardware, sill problems, water management issues, or field-condition problems. These conditions must be addressed separately by the purchaser, installer, or project team.

Casco replacement casement sashes are available in N-Series, D-Series, and L-Series. Each series is built around specific existing sash profiles and compatible frame conditions.

N-Series is designed to fit many old Norco C-Series window applications and other compatible frames. It is not a guaranteed direct replacement. The purchaser and installer must confirm the existing frame condition, sash profile, measurements, hardware compatibility, and installation method before ordering.

D-Series is designed to fit many old Norco D-Series window applications and other compatible frames. It is not a guaranteed direct replacement. The purchaser and installer must confirm the existing frame condition, sash profile, measurements, hardware compatibility, and installation method before ordering.

L-Series is designed to fit many Lincoln/Casco window applications and other compatible frames. It is not a guaranteed direct replacement. The purchaser and installer must confirm the existing frame condition, sash profile, measurements, hardware compatibility, and installation method before ordering.

No. N-Series and D-Series do not have the same profile detail around the full perimeter. Profile details, weatherstrip location, existing frame condition, and measurement points must be reviewed by the purchaser and installer before ordering.

No. Brand names help identify common applications only. Existing windows can vary by age, production run, prior repairs, field modifications, frame condition, hardware condition, and installation conditions. The ordering party and installer must verify series selection, measurements, hardware transfer, existing frame condition, and final fit before ordering. Casco does not confirm or guarantee fit from photos or dimensions. Replacement sashes are component parts and do not have full product energy ratings; glass performance values may be provided only to assist with glass selection.

N-Series and D-Series use Norco-match stock metal colors as their standard colors: Off-White, Sand, and Brown. These colors are intended to coordinate with common Norco White, Norco Sandstone/Tan, and Norco Brown applications.

Other Casco clad colors may be reviewed as upgraded color options, similar to Estate Color handling, when project requirements allow. They are not treated the same as the Norco-match stock metal colors for N-Series and D-Series.

L-Series follows the normal Casco aluminum-clad color program. It is available in Casco clad colors, Estate Colors, and custom exterior colors where applicable. L-Series is not supplied in the Norco-match stock colors used for N-Series and D-Series.

Replacement casement sashes are available with standard raw pine interiors. Casco interior paint and stain finishes may also be available depending on the selected series and project requirements.

Weatherstrip varies by series. N-Series includes new black perimeter weatherstrip, with beige available upon request. D-Series includes new black weatherstrip at the top/head only. L-Series includes new black perimeter weatherstrip, with beige available upon request.

Weatherstrip style, color, and placement should be confirmed based on the selected series and existing window condition before ordering.

Provide the replacement sash series, quantity, sash width and height, operating type, handing when applicable, exterior color, interior finish, glass package, grille details, and weatherstrip requirements.

Photos can be helpful for the ordering party when identifying the existing sash profile, frame condition, hardware, weatherstrip area, or exterior detail, but the ordering party remains responsible for confirming the correct series, measurements, hardware transfer, existing frame condition, and final use of the sash.

The ordering party is responsible for confirming the existing frame is in good condition so it can be reused, the existing hardware is in working order so it can be transferred to the new sash, the correct series has been selected, the measurements are accurate, and the selected options meet the project requirements.

Casco does not review photos, dimensions, or project information as a guarantee that the replacement sash will fit or perform in the existing frame. Casco is providing a sash option for customers who choose to purchase it and use it for their application.

Yes. Photos can be helpful to the ordering party when identifying the existing sash profile, frame condition, hardware, weatherstrip location, and exterior detail.

Photos do not create a fit confirmation or approval by Casco. Casco does not confirm that a replacement sash will fit based on photos, dimensions, or project information. The ordering party is responsible for determining whether the selected sash option is appropriate for the existing window condition.

No. Casco does not confirm or guarantee replacement sash fit based on photos, dimensions, existing window brand, or project information. Photos and dimensions may support order entry or help the ordering party identify what they want to purchase, but final series selection, measurement accuracy, existing frame suitability, hardware transfer, installation method, and fit are the responsibility of the ordering party and installer.

Casco manufactures the sash option selected and ordered by the customer.

The purchaser or project team selects the glass package based on project requirements. Casco manufactures the sash with the selected glass package from the order information provided.

Replacement casement sashes are available with the same Cardinal glass options offered with Casco aluminum-clad windows, where the selected sash series, size, and project requirements allow. Available glass options may include clear insulated glass, Cardinal Low-E glass packages, tempered glass, laminated glass, obscure glass, CLiC switchable privacy glass, and blinds-between-glass options.

Because replacement sashes are component parts, not complete rated window units, they do not carry full product energy ratings such as product U-factor, SHGC, visible transmittance, or condensation resistance values. Glass performance values can be provided to help with glass-package selection, but a complete product energy rating is not available for the replacement sash by itself.

No. Replacement casement sashes are parts used within an existing frame, so they are not rated as complete window products and do not have complete product U-factor, SHGC, visible transmittance, or condensation resistance ratings.

Glass U-values and other glass performance information can be provided to assist with selecting a glass option, but those values are glass-package references only. They are not a complete product energy rating for the installed replacement sash and existing frame condition.

Base glass should not be assumed to meet all local energy requirements. The purchaser or project team is responsible for selecting the glass package needed for the project requirements, including any required U-factor, SHGC, climate zone, or local code requirement.

Because the replacement sash is a component part and not a complete rated window unit, a full product energy rating is not available for the sash by itself.

Yes. Available grille options may include grilles between the glass, simulated divided lite grilles, and interior removable pine grilles, with or without surround. Grille type and grille pattern should be selected based on the existing window style and project requirements.

Casco replacement casement sashes are covered in the same manner as Casco aluminum-clad products. This includes the applicable Cardinal 20-year insulating glass warranty, finish warranty coverage, and warranty coverage against water intrusion through the sash itself.

No. The warranty does not cover fitment of the replacement sash into an existing frame, existing frame condition, existing hardware, field installation, field adjustment, or air and water infiltration caused by the sash-to-frame fit after installation.

The installing party is responsible for confirming the existing frame is suitable to reuse, transferring and adjusting existing hardware, installing the sash properly, and verifying the final sash-to-frame fit and seal against air and water after installation.

Warranty Reminder: Casco covers the replacement sash itself according to the applicable product warranty. Sash-to-frame fit, field installation, adjustment, sealing, existing frame condition, existing hardware condition, and final air/water performance after installation are handled by the installing party.

This protects the customer by making the responsibility clear before ordering: Casco supplies the custom sash, and the installer makes the existing opening work.

Yes. Casco aluminum-clad products use heavy-duty extruded aluminum cladding, not roll-form aluminum or vinyl cladding. Extruded aluminum provides a more substantial exterior profile and durable exterior protection compared with lighter-duty cladding approaches.

Extruded aluminum cladding matters because it creates a stronger, more rigid exterior profile than roll-form or vinyl cladding. When comparing products, customers should confirm whether the exterior is heavy-duty extruded aluminum, thinner roll-form aluminum, or vinyl cladding.

Yes. Replacement casement sashes can coordinate with other Casco aluminum-clad products where project requirements allow, including Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Aluminum-Clad Double-Hung Replacement Kits, and Aluminum-Clad Patio Doors.

Replacement sash product information can be downloaded from the Casco Casement Replacement Sash Brochure.

Yes. Casco supplies replacement casement sashes through its supported dealer network for homeowners, contractors, remodelers, builders, architects, and project buyers.

Yes. Casco replacement casement sashes are used for compatible casement, awning, and picture window applications. For compatible double-hung window openings, review Casco Aluminum-Clad Double-Hung Replacement Kits.

Each replacement product has its own frame requirements, measurement points, ordering details, and purchaser / installer responsibilities.

Related products include Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Aluminum-Clad Double-Hung Replacement Kits, Aluminum-Clad Patio Doors, Architect-Specified Windows & Doors, Aluminum Storm Windows, and Aluminum Storm Doors.

Casco Aluminum-Clad Replacement Casement Sashes offer a sash-only replacement option for many existing compatible casement, awning, and picture window applications. They provide heavy-duty extruded aluminum cladding, treated pine interiors, Cardinal insulated glass options, grille options, series-specific weatherstrip details, and color selections based on the selected sash series.

The product is a strong option when the existing frame is in good condition and the existing hardware can be transferred. It gives customers a way to update aging wood sashes while preserving the existing frame and reducing the disruption that can come with full-frame replacement.

Casco manufactures the replacement sash from the series, measurements, and options provided with the order. The purchaser and installer are responsible for confirming the existing frame is in good condition so it can be reused, the existing hardware is in working order so it can be transferred, the selected series is correct, the measurements are accurate, and the installation can be completed for the existing condition.

Replacement sashes can use the same Cardinal glass options available with Casco aluminum-clad windows, but the sash itself is not a complete rated window product. Glass U-values can support glass selection, but a complete product U-factor, SHGC, or other full product energy rating is not available for the sash alone.

Additional replacement sash resources: Casco Casement Replacement Sash Brochure, Series & Colors, and How to Order.