5 Inch Box Curved End Cap - K-Style Crimp On Gutter Cap

Stop Corner Leaks Fast | Crimp On Installation - No Fasteners | Heavy-Duty .027 Inch Aluminum | 31 Factory Colors | Contractor and DIY | Damascus OR

CONTRACTOR LOCAL PICKUP - DAMASCUS, OREGON

End gutter corner leaks permanently with professional-grade 5 inch box curved crimp on end caps - the contractor-standard solution for fast, secure, leak-free gutter terminations!

Crimp On Design - No Fasteners Needed | Fastest Installation Method | 31 Factory Colors | Singles and 100pc Contractor Boxes | Geocel 2320 Sealant Recommended

5 Inch Box Curved Crimp On End Cap - Damascus, OR:

Leaking gutter corners cause expensive water damage to fascia boards, siding, landscaping, and foundations. Our professional-grade 5 inch box curved crimp on end caps create a permanent watertight seal using the fastest, most reliable installation method preferred by contractors. The crimp on design attaches securely without rivets or screws - simply apply Geocel 2320 sealant, position the end cap, and crimp with an end cap crimper tool. This method creates a stronger, cleaner connection that holds up better over time than fastener-based installations. The box curved profile provides superior water containment with a deeper channel that prevents overflow during heavy downpours. Built from heavy-duty .027 inch thick aluminum that resists denting and maintains its shape for decades. Available in left and right configurations and 31 factory colors to match any gutter system. For contractors who demand speed and reliability, and DIY homeowners who want professional results, the crimp on end cap is the industry-standard solution.

Contractor Local Pickup: Damascus, Oregon - Mon-Fri 7am-4pm, Sat 9am-2pm PST

Local Delivery: Portland metro area available

Shipping: Ships nationwide via standard shipping

Contractor Boxes: 100 pieces per box - call (503) 850-6784 for volume pricing

Why Crimp On? The Contractor-Preferred Installation Method

Professional gutter installers choose crimp on end caps for good reason. The crimp on method creates a mechanically superior connection compared to rivets or screws. When you crimp the end cap onto the gutter, the metal interlocks along the entire edge - not just at a few fastener points. This distributes stress evenly, eliminates potential leak points around fastener holes, and creates a cleaner finished appearance. Combined with Geocel 2320 tripolymer sealant, the crimp on connection provides decades of leak-free performance. The installation is also significantly faster - experienced contractors can install crimp on end caps in a fraction of the time required for fastener-based methods.

Box Curved Design - Superior Water Containment:

The box curved profile is specifically engineered to prevent the most common cause of gutter leaks - water escaping at end caps during heavy rainfall. Unlike flat end caps that can allow water to splash over during downpours, the box curved design features a deeper channel and curved upper edge that contains water even when gutters are running at full capacity. The curved profile also matches the natural flow of water through K-style gutters, reducing turbulence at the end cap that can cause splashing and overflow. This design has been proven in the field by thousands of professional installations to provide superior leak prevention compared to standard flat end caps.

K-Style Profile - Fits Standard 5 Inch Residential Gutters:

This end cap is designed specifically for 5 inch K-style (also called K Fascia or Ogee style) gutters - the most common residential gutter profile in North America. The K-style profile features a flat back that mounts flush against the fascia board and a decorative front that resembles crown molding. Our end caps match this profile precisely with dimensions of 4.5 inches top width, 4.5 inches height, and 2.5 inches bottom width - ensuring a perfect fit for watertight sealing. The 5 inch size handles standard residential roof areas efficiently.

Heavy-Duty .027 Inch Aluminum Construction:

Built from professional-grade .027 inch thick aluminum - significantly heavier than the thin end caps found at big box stores. This thickness provides the rigidity needed to maintain a tight seal against the gutter end, resist denting during installation and crimping, and hold its shape for decades. The heavier material also crimps more securely, creating a stronger mechanical connection with the gutter edge. Aluminum naturally resists corrosion without coatings, so these end caps will never rust like steel alternatives. All colors feature factory-applied baked enamel finish for UV resistance and long-lasting color retention.

Geocel 2320 Sealant - The Professional Choice:

We recommend Geocel 2320 tripolymer sealant for all crimp on end cap installations. This professional-grade sealant is specifically formulated for gutter applications and provides superior adhesion to aluminum surfaces. Unlike standard silicone caulk, Geocel 2320 remains flexible after curing to accommodate thermal expansion and contraction without cracking or losing adhesion. It can be applied to wet surfaces, cures quickly, and provides a permanent watertight seal that lasts for decades. The combination of crimp on mechanical connection plus Geocel 2320 sealant creates the most reliable leak prevention available for gutter end caps.

31 Factory Colors - Match Any Gutter System:

With 31 factory colors available, you can match virtually any existing gutter system or exterior color scheme. Our color selection includes standard whites (30 Deg. White, 80 Deg. White), popular browns (Royal Brown, Musket Brown, Beaver Brown, Buckskin Brown), sophisticated neutrals (Tuxedo Gray, Dove Gray, Colonial Gray), classic earth tones (Clay, Wicker, Safari Beige, Raffia Beige), specialty finishes (Rustic Copper, Herringbone, Copper Metallic), and premium options (Copper, Galvalume Plus, Paint Grip Metallic). All colors are factory-applied baked enamel for UV resistance and long-lasting color retention that matches your gutters for years.

Professional-grade 5 inch box curved crimp on end cap for watertight termination of K-style gutter runs. Also known as a gutter cap, gutter stop, gutter end piece, or crimp on cap, this essential component prevents water from escaping at gutter ends - one of the most common causes of gutter leaks and resulting water damage. The crimp on design is the contractor standard, providing the fastest installation and strongest mechanical connection without fasteners. Built from heavy-duty .027 inch thick aluminum for superior durability and rigidity. The box curved profile provides deeper water containment and superior leak prevention compared to flat end caps. Available in left and right configurations and 31 factory colors with baked enamel finish. Purchase singles for repairs or contractor boxes of 100 pieces for professional inventory. Dimensions: 4.5 inch top width, 4.5 inch height, 2.5 inch bottom width. Requires end cap crimper tool and Geocel 2320 sealant for installation (sold separately). Standard shipping nationwide, or pick up locally at our Damascus, Oregon location.

Key Benefits:

• Stop Corner Leaks: Box curved design contains water even during heavy downpours
• Fastest Installation: Crimp on method - no drilling, no fasteners, no extra holes
• Strongest Connection: Full-edge crimp distributes stress better than point fasteners
• Protect Your Home: Prevent water damage to fascia, siding, and foundation
• Heavy-Duty Construction: .027 inch thick aluminum resists denting and maintains shape
• Rust-Free Performance: Aluminum construction never corrodes or deteriorates
• No Fastener Holes: Eliminates potential leak points around rivets or screws
• Cleaner Appearance: No visible fasteners for professional finished look
• Left and Right Options: Terminate either end of any gutter run
• 31 Factory Colors: Match any existing gutter system perfectly
• UV-Resistant Finish: Baked enamel coating resists fading and chalking
• Precision Fit: Designed specifically for 5 inch K-style gutters
• Flexible Quantities: Singles for repairs, 100pc boxes for contractors
• Long-Lasting: 20-30+ year service life with proper installation

Technical Specifications:

31 Factory Color Options

All colors feature baked enamel finish for UV resistance and long-term durability.

Crimp On vs. Fastener Installation - Why Contractors Choose Crimp On:

Note: Crimp on installation requires an end cap crimper tool (sold separately). This specialized hand tool creates the mechanical connection that locks the end cap to the gutter edge.

Left vs. Right - Which Do You Need?

Tip: Most straight gutter runs need one LEFT and one RIGHT end cap. Gutters that turn corners use miter pieces instead of end caps at the corner.

Common Names - Same Professional Product:

Who Uses 5 Inch Box Curved Crimp On End Caps?

Installation Guide - Crimp On Method:

1. Clean the gutter end: Remove all debris, dirt, and any old sealant from the gutter end
2. Dry thoroughly: Wipe with a clean cloth and ensure the surface is dry (Geocel 2320 can be applied to damp surfaces if needed)
3. Apply Geocel 2320 sealant: Run a generous bead of sealant around the inside lip of the end cap where it will contact the gutter
4. Position end cap: Place the end cap onto the gutter end, ensuring correct orientation (left or right) and full contact on all edges
5. Crimp the connection: Using the end cap crimper tool, crimp along the entire edge where the end cap meets the gutter - work around all sides
6. Inspect the seal: Check that the crimp is uniform and the end cap is securely attached with no gaps
7. Apply additional sealant: Run a bead of Geocel 2320 along the inside seam where the end cap meets the gutter for extra protection
8. Allow to cure: Geocel 2320 skins over quickly but allow 24 hours for full cure before heavy rain exposure

Pro Tip: The crimp should create a visible fold along the edge where the end cap overlaps the gutter. A proper crimp will not pull apart when tugged. If the crimp seems loose, go around again with the crimper tool.

Frequently Asked Questions:

Custom Orders Welcome!

Need contractor boxes, specialty colors, or complete gutter component packages? We can help!

Our team works with contractors and homeowners on custom orders including high-volume contractor quantities (100pc boxes), specialty color matching, mixed left/right assortments, end cap crimper tools, Geocel 2320 sealant, and complete gutter component packages. Whether you are outfitting multiple job sites or need exact color coordination - contact us to discuss your needs.

GutterAll - Your Gutter Component Specialist

Professional gutter components for contractors and DIY homeowners. Our 5 inch box curved crimp on end caps stop corner leaks with the fastest, most reliable installation method. The contractor-standard crimp on design creates a stronger connection without fastener holes. Built from heavy-duty .027 inch thick aluminum with baked enamel finish, available in 31 factory colors and left/right configurations. Purchase singles for repairs or contractor boxes of 100 pieces. Geocel 2320 sealant recommended. Serving the Pacific Northwest and shipping nationwide.

GutterAll.com - Damascus, Oregon

Professional Gutter Installation and Supplies Since 2010