UPVC Sliding Sash 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 sliding sash windows in China, also supports customized service. Please feel free to wholesale high quality upvc sliding sash windows for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
uPVC Sliding Sash Windows
If you are replacing original timber sliders or specifying windows for a new traditional-style build, you already know the headaches of wood. It rots, it rattles, and it requires endless repainting.
Our made to measure uPVC sliding sash windows deliver the exact aesthetic of classic timber box sashes, but without the upkeep. Built for the trade and savvy homeowners, we offer a dedicated supply only service, giving you premium double glazing straight from the manufacturer at a highly competitive price point.
Forget the cheap, shiny plastic look of the 90s. These are highly engineered, energy-efficient plastic sash windows designed with authentic detailing-including run-through sash horns, mechanical joints, and traditional astragal bars-to easily pass planning permissions, even in many conservation areas.
Why Specify Our uPVC Sash Windows?
- Authentic Traditional Styling: Choose from smooth white or textured woodgrain foils (like Rosewood, Irish Oak, or Chartwell Green) that mimic the grain of real painted timber.
- A-Rated Energy Efficiency: Stop draughts dead. Our standard double glazed units feature argon-filled gaps and low-E glass, achieving exceptional U-values that exceed modern building regulations.
- Built-in Security: Secured by Design (SBD) upgrade options available. Every window comes standard with toughened glass, premium key-locking fitch catches, and robust travel restrictors.
- Tilt-and-Clean Functionality: Both top and bottom sashes tilt inward, making it safe and easy to clean the exterior glass from inside the building.
- Smooth Operation: Heavy-duty, pre-tensioned spiral balances ensure the sashes slide effortlessly and stay exactly where you leave them.
Product Parameters
| Feature | Specification Details |
| Material | High-impact, multi-chambered uPVC (Vinyl) |
| Profile Depth | 128mm outer frame (standard box sash replacement) |
| Glazing | 24mm Double Glazed (Argon filled, Low-E glass). Toughened as standard. |
| Energy Rating | 'A' Rated standard / U-Value down to 1.4 W/m²K |
| Hardware Colors | Chrome, Gold, Satin Silver, White, Black, Antique Brass |
| Sash Horns | Optional: Run-through or clip-on decorative horns |
| Ventilation | Concealed trickle vents available (complying with Part F) |
| Manufacturing Limit | Max Width: 1600mm | Max Height: 3000mm |
| Warranty | 10-year guarantee on profiles and color fastness; 5 years on glass |
Product Application
Our factory
Customer visit
FAQ
Q: How much do double glazed plastic sash windows cost?
A: Because we offer a bespoke supply-only service, the exact cost depends on your dimensions, color choices, and hardware. However, a standard white uPVC sash window is typically 40% to 50% cheaper than its timber equivalent. Contact us with your measurements for an instant, no-obligation quote.
Q: Can I get plastic box sash windows made to measure?
A: Yes. Every single window we manufacture is built precisely to your millimeter specifications. We do not hold "off-the-shelf" stock sizes, ensuring a perfect, weather-tight fit for your rough openings.
Q: Will these traditional style uPVC sash windows be approved for conservation areas?
A: In many cases, yes. Our Heritage range features mechanically jointed frames (which look like timber mortise and tenon joints) and authentic woodgrain finishes. While you must always check with your local Local Planning Authority (LPA), these windows are specifically designed to mimic timber closely enough to pass strict architectural reviews.
Q: How do I measure for a supply-only order?
A: Always measure from the outside. Take three width measurements (top, middle, bottom) and three height measurements (left, middle, right). Supply us with the smallest width and the smallest height, deducting 10mm from each to allow for fitting tolerance and sealant.
Q: How to clean upvc sash windows easily?
A: Our windows feature a clever tilt-in facility. By releasing the restrictor catches, both the top and bottom sashes tilt inwards on a pivot. You can wipe down the outside glass with warm, soapy water from the comfort of your living room. No ladders required.
Q: Do you sell replacement parts for plastic sash windows?
A: Yes, we stock a full range of replacement hardware for the windows we manufacture, including fitch catches, pole eyes, travel restrictors, and spiral balances.
Q: How energy efficient are these windows compared to old timber sashes?
A: Night and day. Old timber single-glazing usually operates at a U-value of around 5.0 W/m²K (highly inefficient). Our double glazed, multi-chambered uPVC frames achieve a U-value of 1.4 W/m²K. You will notice an immediate reduction in draughts, outside noise, and heating bills.
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