SKU: 76142597543

Part Q Composite Door - Minster Sunburst

$429.08 $476.76
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Description

Part Q Composite Door - Minster SunburstGRP Composite Door: The Minster Sunburst GRP Composite Door is a high security, low maintenance entrance solution designed for durability, thermal efficiency, and timeless aesthetics. Constructed with a Glass Reinforced Plastic (GRP) skin, it replicates the traditional look of timber while providing exceptional resistance to weathering, warping, and impact. Featuring a sunburst style glazed panel, this door allows natural light to enhance your

GRP Composite Door:

The Minster Sunburst GRP Composite Door is a high-security, low-maintenance entrance solution designed for durability, thermal efficiency, and timeless aesthetics. Constructed with a Glass Reinforced Plastic (GRP) skin, it replicates the traditional look of timber while providing exceptional resistance to weathering, warping, and impact.

Featuring a sunburst-style glazed panel, this door allows natural light to enhance your entranceway while maintaining privacy, security, and insulation. Engineered to British security and energy efficiency standards, the Minster Sunburst door includes a multi-point locking system, reinforced core, and high-performance glazing options. Available in a variety of colors and configurations, it is the perfect combination of style, security, and energy efficiency, making it an ideal choice for both residential and commercial properties.

With Secured By Design accreditation, the Minster Sunburst door ensures long-lasting performance and enhanced home security.

Technical Spec:

  • Brand: GRP Composite Doors
  • Product Type: Composite Entrance Door
  • Sightlines (mm): Standard sightline dimensions with reinforced frame
  • Colour Options: Available in 5 standard colours 
  • Configuration: Multiple configurations are available, including traditional and contemporary models. 
  • Cill: 150mm
  • Trickle Vents: Available upon request
  • Beading: Internally beaded for enhanced security
  • Glazing: Double-glazed glass with a satin obscure finish. 
  • Furniture: A range of door handles, letter plates, knockers, and spy holes are available 
  • Security:
    • Multi-point locking system with high-security steel hooks
    • Kubu smart technology integration
    • Anti-bump, anti-drill, and anti-pick lock cylinders
    • PAS 24:2016 & Secured By Design certification
  • U-Value: Achieves a minimum 1.6 W/m²K for thermal efficiency
  • Part L Compliance: Meets and exceeds thermal efficiency requirements
  • Part F Compliance: Compliant with ventilation regulations where applicable
  • Part Q Compliance: Fully compliant with security standards for new builds

Guarantee:

  • 10-Year Manufacturer Guarantee covering structural integrity, colour stability, and weather resistance
  • 1-Year Guarantee on standard gold and chrome hardware

FAQS

Q: What is a GRP composite door?

A: A GRP (Glass Reinforced Plastic) composite door is a high-performance entrance door designed to mimic the appearance of traditional timber while offering superior durability, security, and insulation. It features a tough GRP skin, a high-density polyurethane foam core, and a reinforced frame to provide long-lasting performance with minimal maintenance.

Q: Are GRP composite doors energy efficient?

A: Yes, GRP composite doors are highly energy-efficient. They feature a high-density polyurethane foam core that significantly reduces heat loss, making them up to 20% more thermally efficient than solid timber doors. They also meet and exceed UK Building Regulations for thermal performance, with U-values that ensure excellent insulation.

Q: How secure are GRP composite doors?

A: GRP composite doors are designed for maximum security. They come with a multi-point locking system, high-security steel hooks, and reinforced door frames to prevent forced entry. The doors also include Secured by Design-certified hardware, anti-bump, anti-drill, anti-pick, and anti-snap locking cylinders for added protection.

Q: Do GRP composite doors require maintenance?

A: No, GRP composite doors are virtually maintenance-free. Unlike timber doors, they do not require painting, staining, or regular upkeep. The durable GRP skin resists weathering, scratches, and fading, ensuring a long-lasting and attractive finish with just occasional cleaning.

Q: How long do GRP composite doors last?

A: GRP composite doors are built to last decades with minimal upkeep. Thanks to their durable GRP skin, reinforced core, and weather-resistant design, they do not warp, crack, or fade like traditional wooden doors. With proper care, a high-quality GRP composite door can last 25 years or more, making it a long-term investment for your home.

Q: Are GRP composite doors weather-resistant?

A: Yes, these doors are designed to withstand harsh weather conditions. They feature a high-performance weather seal system, strong stainless steel hinges, and robust gaskets that prevent water ingress, ensuring long-term durability and protection against the elements.

Q: Do GRP composite doors comply with UK building regulations?

A: Yes, GRP composite doors meet all relevant UK Building Regulations, including:

  • Part L Compliance (energy efficiency)
  • Part F Compliance (ventilation where applicable)
  • Part Q Compliance (security standards for new builds)

Q: Can I install a smart lock on a GRP composite door?

A: Yes, GRP composite doors are Kubu smart-ready, meaning they can integrate with the Kubu smart lock system. This allows homeowners to monitor their door’s locking status in real-time via a smartphone app, providing enhanced security and peace of mind.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76142597543

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4.8 ★★★★★
Based on 6 reviews
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Product Reviews
J
Verified Purchase
J. S. Kline
Massapequa, US
★★★★★ 5
Excellent Cabinet for someone good at mounting a cabinet
Color: White, Style: Wall Cabinet
The cabinet arrived very well packaged with an instruction booklet, hardware, and an Allen wrench. The booklet says you will just need a Phillips screwdriver, but you will also need a drill with an appropriate bit (more on the bit later) to mount the cabinet on the wall. Assembling the cabinet was simplified by how well the cabinet pieces and hardware were labeled and referenced in the instruction booklet. The holes in all the cabinet parts lined up nicely. The doors swing on spring loaded pivots. They are not adjustable, but work well and are probably much less expensive than European style hinges. I was concerned that the doors would not line up, but they look fine. The Magnetic Latch also works well, but the little piece of wood that it mounts on fell off during assembly so I glued it back in place. This was the only problem I had assembling the cabinet. I let the glue dry overnight and mounted the cabinet the next day. The wood support plate they ship with the cabinet is a great way to hang a cabinet, however I did have some problems using the supplied anchors. I recommend having some other anchors and screws available in case you have similar issues. Skip this paragraph if you do not care about the details: I mounted the cabinet on drywall. The instructions said to drill 11/32” holes for the supplied plastic wall anchors. I did not have an 11/32” bit so I used a 5/16” bit. Even though my holes were 1/32” smaller than specified, the anchors slid into the drywall very easily without having to tap them. I recommend using a 5/16” bit or even a 9/32” bit instead of the 11/32” they specify. Next I mounted the support plate with the supplied screws, but I could not get the screws tight enough to hold the plate securely in place. It felt like the screws were too small in diameter so I used some slightly larger screws. That worked fine for one of the screws holding the plate and the two lower screws, but the second screw through the plate would not bite and hold the plate firmly. Fortunately I had one HILTI 3/16” hollow wall metal anchor left over from a previous project and was able to get the plate very solidly attached to the wall. My wife is very pleased with the cabinet. I did have some trouble with the latch and the install so I was tempted to knock off a star, but I think this is a 5-Star item considering the low cost and how well the the cabinet parts aligned with each other.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2025
M
Verified Purchase
Monica G.
Bozeman, US
★★★★★ 5
Love and amazing for the price!
Color: White, Style: Wall Cabinet, Color: White, Style: Wall Cabinet
Perfect! I'm a renter and didn't want to spend an arm and a leg on something that might not work in the next place so this looked like it would be a good fit. I really wasn't expecting much for the price point but I was VERY pleasantly surprised. It's a great piece. I love assembling things (I'm an Ikea pro) but this had literally the easiest and most explicit instructions I have ever seen. Every piece is clearly labeled. The hardware comes in a bubble pack, again clearly labeled. Rhe instructions are very clear. Another thing I appreciated was the mounting mechanism which is a French cleat. It is much easier to level and screw in a cleat than to recruit help and try to hold a cabinet in place and try screwing it in. I'm a fat middle age woman and I had no problem mounting it by myself. Notice there are no screws visible on the outside. That was a huge selling point for me. Only con is that for the quality of everything else, the shelves are on the thin side, placing anything substantial would definitely make them bow. Background is a scrap of peel-and-stick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
K
Verified Purchase
Ken
West Palm Beach, US
★★★★★ 5
Good cabinet choice
Color: White, Style: Wall Cabinet
I needed a wall cabinet for a recessed area above the toilet. This one fits the area perfectly and provides a good amount of storage in an otherwise wasted space. It looks good as it coordinates well with my white shaker style cabinets elsewhere in the room. It was easy to assemble, doors lined up perfectly, and mounting was a breeze with the included screws and hardware. It doesn't get hard use in this location, but seems sturdy after almost a year.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2025
A
Amazon Customer
Houston, US
★★★★★ 5
Versatile Room Divider With Easy Assembly and Strong Coverage
Size: 3 Panel 12FT W
I picked up this Siebwin 3-panel folding room divider mainly for privacy and room separation, and overall it works very well. Assembly is very straightforward, and the divider can be set up, taken apart, and stored without much effort. The fabric quality feels good, and the frame construction is stronger and more stable than expected. The support tubes especially feel well built and help keep the divider standing securely. One feature I really liked is the flexibility of the design. The panels can be used together as a complete divider or separated depending on the setup and available space. That makes it much more versatile for different room layouts or temporary privacy needs. The coverage is also very good, and the size matches the manufacturer’s description accurately. The fabric blocks light and background visibility well enough to provide solid privacy without feeling overly heavy. The wider feet also help improve stability compared to thinner folding dividers. Another positive detail is that everything arrived complete with no missing parts or damaged pieces, which made assembly much easier and faster. Compared to cheaper privacy screens, this one feels more durable and easier to customize depending on the situation. In terms of value for the money, it feels like a very practical and worthwhile purchase considering the size, flexibility, and build quality. Overall, a versatile and well-built room divider with easy assembly, strong privacy coverage, stable construction, complete included parts, flexible panel configuration, and excellent everyday functionality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
F
Fred
Port Orchard, US
★★★★★ 5
Stable, flexible in deployment configuration, creates true privacy and looks great.
Size: 3 Panel 12FT W
This is the second room divider panel I have installed, and there are several features about this one that I like much better than my older one. The fact that there are no gaps and that the material is thicker means you get more privacy or more hiding power, if you wish. My older divider has vertical spaces between each of the panels and the panels are half as wide as the Siebwin panels, so there are many vertical spaces. The Siebwin divider really creates privacy. Another feature that I really appreciate is that the legs are wider and stand off from the floor. On my older one the legs are flat and they're rather awkward to adjust because they create more drag on the floor. The feet on the older one also loosen if you turn them counter clockwise, so adjustments of configuration that require the feet to be moved are more complex. The older divider also must be deployed in a zig-zag fashion because he feet are not as wide, but this new one can be deployed and stable in a straight, an "N" shape or an arc. They are both the same length, but because the older one must be use in a zig-zag deployment it doesn't reach to the length of the new one. The Siebwin divider definitely costs more at $103.48, but it sports several features and advantages over the other brand, so it does a better job and is worth the extra cost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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