Folding door
WZ-80 Aluminum Folding Door
Explore a folding-panel layout for your opening. Discuss panel arrangement, finishes and glass options with DERCHI.
DERCHI Super September: Save 10% on Eligible Windows and Doors
Plan your upgrade
A new view. A better time to upgrade.
Planning a home renovation, a new build, or your next residential project? Choosing windows and doors means balancing your design ideas, everyday needs, and budget.
The DERCHI September sale offers 10% off eligible hot-selling and regular products. Whether you are comparing window styles or planning a new connection between your home and garden, explore your options and request a quotation tailored to your project.
The September offer
Two product ranges. The same 10% saving.
From August 20 through September 30, eligible products in both our hot-selling and regular ranges receive the same discount. Start with the products that suit your project, then confirm the selected models and configurations with our team.
Hot-selling products
10% OFFRegular products
10% OFFPromotion exclusions: Special edition items are not eligible for discounts. Motorized products and blind products are excluded from all promotional offers.
For orders containing different product types, request a breakdown of eligible items. The offer should not be interpreted as a discount on every cost associated with your project.
Find your next window or door
Featured windows & doors
A room window, a patio entrance, and a wide garden opening serve different purposes. Compare the following models from DERCHI’s main product collection, then review how each option fits your dimensions, layout, and everyday use.
Before choosing: These are featured catalogue models, not a sales ranking or a confirmed list of discounted configurations. Ask DERCHI to confirm the eligibility of your selected model and configuration.
Sliding door
WT-143 Series Sliding Door
Compare a sliding-door configuration for your patio or living area. Confirm dimensions, track layout and everyday access.
Sliding door
WT-103 Ultra-Narrow Sliding and Sling Door
Consider an ultra-narrow design for your interior layout. Review the opening arrangement and selected configuration before ordering.
Sliding window
WT-95 Thermal Break Sliding Window
Explore a thermal-break sliding-window option. Share room dimensions and discuss the glass and finish required for your project.
Sliding window
WT-94 Thermal Break Sliding Window
Add this sliding-window series to your shortlist. Ask DERCHI to confirm opening sizes, hardware and configuration details.
Casement window
WY-143 Thermal Break Aluminum Casement Window
Review a casement-window option for your rooms. Discuss opening direction, glazing and the finish that suits your space.
Product names and images are sourced from DERCHI’s official main product collection. Images show reference configurations; confirm the specification included in your quotation.
Choose for your space
Make the discount part of a well-planned upgrade
The promotion helps with the purchase decision, but product selection should still begin with your requirements. A suitable opening arrangement, a finish that complements your home, and a clearly specified glass package all deserve attention before an order is finalized.
Use the quotation process to discuss the details that matter to your home or development. For a whole-home renovation or a multi-unit project, a room-by-room product schedule helps you compare quotations based on the same sizes, quantities, and specifications.
| Dimensions & layout | Provide opening sizes, quantities, and drawings where available. Review opening direction and clear passage. |
|---|---|
| Appearance | Discuss frame colors, finishes, and the visual relationship between different rooms. |
| Glass & hardware | Identify the options you want included in the proposed configuration and itemized quotation. |
| Performance requirements | Request documentation relevant to the selected model, configuration, and project location. |
| Project schedule | Share your intended installation timeline and confirm production and delivery arrangements. |
From shortlist to quotation
Request your promotional quote in three steps
Share your project
Tell us your project location and whether you are renovating, replacing existing units, or building from scratch. Include product types, approximate dimensions, quantities, and preferred styles. Identify any measurements that are still preliminary.
Review products & eligibility
Review suitable models and configurations with our team. Confirm eligible items and identify any excluded special edition, motorized, or blind products. Discuss finishes, glass, hardware, and outstanding specification questions.
Confirm your quotation
Review eligible product pricing alongside any other charges. Before proceeding, confirm the applicable order and payment requirements, as well as the proposed production and delivery arrangements.
Before you enquire
Frequently asked questions
Are customized windows and doors eligible?
Eligibility depends on the selected product and configuration. Ask our team to confirm your proposed specification; customization alone does not confirm that an item qualifies.
Can I enquire before all measurements are finalized?
Contact DERCHI with the project information you have and identify which measurements remain preliminary. Final specifications and pricing will need to be confirmed as the details become available.
Does the discount include shipping, taxes, or installation?
The announced offer covers eligible products. Ask for an itemized quotation and confirmation of how shipping, taxes, installation, and any other charges are treated.
Can this promotion be combined with another offer?
Ask our team to confirm how the promotion applies alongside any existing quotation or other offer before placing your order.
August 20 – September 30
Start planning your DERCHI project
Bring your window and door plans to DERCHI during Super September. From a room-by-room renovation to a larger residential project, start with the products and configurations that suit your needs.
Enjoy 10% off eligible hot-selling and regular products. Share your project location, dimensions, and quantities with our team to confirm eligibility and request your quotation.
Special edition items are not eligible for discounts. Motorized products and blind products are excluded from all promotional offers.
