UPVC Crank Windows
2.Size: Custom sizes
3.Color: Customizable
4.Certifications: CE, 3C, AS, CSA, ENERGY STAR
5.Suitable for: Commercial buildings, villas, hotel projects, private residential projects, etc.
6.Trade Terms: DDP, CIF, FOB, EXW, CFR
Shaanxi SGL Doors&Windows Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of upvc crank windows in China, also supports customized service. Please feel free to wholesale high quality upvc crank windows for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Premium Custom Size uPVC Crank Windows
Stop struggling with off-the-shelf window sizes that require extensive framing modifications. Whether you are retrofitting an older home or specifying exact dimensions for a new build, our made-to-measure uPVC crank opening windows deliver a precision fit.
Designed for smooth operation and maximum thermal performance, these awning and casement-style windows open effortlessly with a heavy-duty folding crank handle-perfect for hard-to-reach areas like above kitchen sinks or deep countertops.
Why Choose Our uPVC Crank Windows?
- Precision Custom Sizing: Don't compromise on your rough openings. When you buy custom size uPVC crank windows online with us, you get exact millimeter precision, ensuring a weather-tight seal and a faster, cleaner installation process.
- Top-Tier Thermal Performance: Drafty windows cost you money. Ranked among the best energy efficient uPVC crank windows on the market, our multi-chambered uPVC profiles create an exceptional thermal barrier against both extreme cold and summer heat.
- Effortless Operation & Security: The heavy-duty rotary crank mechanism allows you to open the sash up to a full 90 degrees for maximum ventilation, all with minimal physical effort. Integrated multi-point locking systems engage automatically when cranked shut, pulling the sash tight against the weatherstripping.
- Glazing Options to Suit Your Climate: Choose standard double glazing for excellent everyday efficiency, or upgrade to uPVC triple glazed crank opening windows for superior acoustic insulation and ultra-low U-values in severe climates.
Product Parameters
| Feature | Specification Details |
| Material | UV-resistant, extruded Unplasticized Polyvinyl Chloride (uPVC) |
| Profile Depth | 70mm or 80mm options available |
| Opening Style | Casement (Side-hung) or Awning (Top-hung) crank out |
| Hardware | Heavy-duty steel folding crank handle, multi-point locking system, stainless steel friction hinges |
| Standard Glazing | 24mm Double Glazed (Low-E coating + Argon gas fill) |
| Upgrade Glazing | 36mm Triple Glazed (Available for enhanced acoustic/thermal performance) |
| Energy Rating | U-Value as low as 0.18 (depending on glass selection) |
| Weatherstripping | Dual-seal EPDM rubber gaskets |
| Color Options | White, Black, Anthracite Grey, Golden Oak (Woodgrain) |
| Custom Size Range | Width: 400mm - 900mm | Height: 400mm - 1800mm |
Product Application
Our factory
Customer visit
FAQ
Q: How do I properly measure to buy custom size uPVC crank windows online?
A: Measure the width and height of your rough opening in three places (top, middle, bottom for width; left, center, right for height). Take the smallest measurement for both. We recommend deducting 10mm to 15mm from your final smallest width and height to allow room for shimming and expanding foam during installation.
Q: What factors impact uPVC casement crank window prices?
A: The base price is determined by the exact dimensions of the window. Upgrades that increase the price include choosing color foils (like Black or Anthracite Grey instead of standard white), upgrading from double to triple glazing, and adding custom internal grids/muntins.
Q: Are crank windows more energy-efficient than sliding windows?
A: Yes. When a crank window closes, the locking mechanism pulls the sash tightly against the weatherstripping on all four sides, creating a compression seal. Sliding windows rely on brush seals which are inherently more prone to air leakage over time.
Q: Should I choose double or uPVC triple glazed crank opening windows?
A: Double glazing with Low-E glass and Argon gas is more than sufficient for most moderate climates. However, if you live in an area with harsh, freezing winters, or if your home is located on a busy, noisy street, upgrading to triple glazing is a smart investment for the added thermal and acoustic insulation.
Q: What happens if the crank mechanism breaks or the handle starts spinning?
A: Our windows use standard, easily accessible hardware channels. If the internal gears of the operator wear out after years of use, the crank operator mechanism can be swapped out from the inside in about 15 minutes using standard tools.
Q: Do you sell replacement hardware if I need it in the future?
A: Yes. We stock all replacement parts, including heavy-duty crank handles, left-hand and right-hand operators, and friction hinges specifically designed for our uPVC profiles.
Q: What is the typical lead time for custom-sized orders?
A: Because each window is fabricated exactly to your specifications, standard manufacturing time is 3 to 4 weeks. Transit time depends on your delivery location. We provide full tracking information the moment your windows leave our facility.
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