Stop leaking gutter corners with our professional-grade 5" Box Curved End Caps. Designed specifically to address one of the most common causes of gutter leaks – failing end caps and corner joints.

Unlike standard end caps that often leak after a few seasons, our box curved design creates a superior watertight seal that prevents water from escaping even during heavy rainfall. The precision-engineered fit and deeper channel effectively eliminate corner leaks that can damage your home's foundation, siding, and landscaping.

WHY BOX CURVED END CAPS PREVENT LEAKS

The box curved design creates a deeper channel and superior seal that prevents water from escaping at the corners – the most common location for gutter leaks.

WHY OUR END CAPS PREVENT LEAKS

• Superior Design - Box curved shape creates a deeper channel that contains water even during heavy rainfall
• Precision Fit - Manufactured to exact specifications for a perfect seal with K-Style gutters
• Quality Material - Professional-grade .027" aluminum resists warping and maintains its shape
• Durable Finish - Weather-resistant coating prevents corrosion and deterioration
• Proper Water Flow - Curved design guides water away from vulnerable corner joints
• Easy Installation - Designed for simple, secure attachment with rivets or screws
• Long-Lasting Performance - Maintains watertight seal for years longer than standard end caps

COMMON LEAK ISSUES OUR END CAPS SOLVE

Installation Diagram

PROFESSIONAL INSTALLATION TIPS:

• Temperature Matters: Install on a warm, dry day when the gutter metal isn't contracted from cold
• Use Quality Sealant: 100% silicone or specialized gutter sealant provides the best long-term results
• Proper Rivets: Use aluminum rivets that won't rust or corrode over time
• Clean Surface: The cleaner the surface, the better the sealant will adhere
• Multiple Fasteners: Use at least 3-4 rivets or screws per end cap for maximum security

WHY PROFESSIONALS CHOOSE BOX CURVED END CAPS

Professional gutter installers consistently choose box curved end caps because they virtually eliminate callbacks for leaking corners. The superior design and construction provide a permanent solution to one of the most common gutter problems, resulting in higher customer satisfaction and fewer warranty claims.

Why are my gutters leaking at the corners?

Gutters typically leak at corners due to improper end cap installation, damaged or low-quality end caps, or deteriorated sealant. The corners and end caps are common failure points because they're connection points where water can escape if not properly sealed. Standard end caps often don't provide enough depth to contain water during heavy rainfall, and their flat design doesn't account for the natural flow patterns of water. Professional-grade box curved end caps create a superior watertight seal because they're designed with a deeper channel and curved edge that prevents water from escaping even during heavy rainfall.

How do I fix leaking gutter joints and corners?

To fix leaking gutter joints and corners: 1) Clean the area thoroughly and allow it to dry completely; 2) Remove the old end cap if it's damaged; 3) Apply a high-quality gutter sealant to the inside edge of the gutter; 4) Install a professional-grade box curved end cap, ensuring it fits snugly against the gutter edge; 5) Secure with rivets or screws; 6) Apply additional sealant around the edges if necessary. Using a quality end cap like our 5" Box Curved End Cap is crucial as it's designed specifically to prevent leaks with its superior fit and deeper channel. For persistent leaks at seams, consider applying gutter seam sealant along the inside of the joint before installing the end cap.

What causes gutters to leak at the end caps?

Gutters leak at end caps due to several factors: 1) Poor quality or improperly sized end caps that don't create a tight seal; 2) Improper installation without adequate sealant; 3) Thermal expansion and contraction that breaks the seal over time; 4) Physical damage from ladders or falling debris; 5) Deterioration of sealant due to UV exposure and weather conditions. Standard flat end caps are particularly prone to leaking because they don't provide enough depth to contain water during heavy rainfall. Our professional-grade 5" Box Curved End Caps address these issues with their precision fit, deeper channel design, and durable aluminum construction that withstands environmental stresses.

Are box curved end caps better than standard end caps for preventing leaks?

Yes, box curved end caps are superior to standard end caps for preventing leaks because: 1) Their curved design creates a more natural water flow path that reduces pressure at the corners; 2) The box design provides a deeper channel that contains water even during heavy downpours; 3) They have a larger surface area for sealant application, creating a more reliable watertight seal; 4) The professional-grade aluminum construction resists warping and maintains its shape over time; 5) The precision manufacturing ensures a perfect fit to the gutter profile, eliminating gaps where water could escape. Professional installers consistently choose box curved end caps for these reasons, especially in areas with heavy rainfall or for customers who have experienced leaks with standard end caps.

How long do gutter end caps last before they start leaking?

Quality gutter end caps like our professional-grade 5" Box Curved End Caps typically last 15-20 years before they might develop leaks, compared to 5-10 years for standard end caps. Factors affecting longevity include: 1) Material quality - our .027" thick aluminum resists deterioration; 2) Installation quality - properly sealed and riveted caps last longer; 3) Climate conditions - extreme temperature fluctuations can stress connections; 4) Maintenance - regular gutter cleaning prevents debris buildup that can damage seals. With proper installation and periodic inspection, our box curved end caps provide one of the most durable solutions for preventing corner leaks, making them a cost-effective long-term investment for homeowners.

After dealing with leaking gutter corners for years and trying multiple fixes, I finally installed these box curved end caps. The difference was immediate - not a single leak since installation, even during the heaviest downpours. The quality is obvious compared to the standard end caps I had before. Worth every penny to finally solve this persistent problem.

As a professional gutter installer, I've switched to using these box curved end caps exclusively. They virtually eliminate callbacks for leaking corners, which used to be our most common service issue. The installation is straightforward, and the quality is evident. My customers appreciate the professional appearance and leak-free performance, and I appreciate not having to make warranty visits for corner leaks.

We had water damage to our siding from leaking gutter corners. After replacing the standard end caps with these box curved ones, the problem was completely solved. The deeper design clearly holds water better, and the quality of the aluminum is noticeably superior. I wish I had known about these years ago - would have saved us a lot of headaches and repair costs to our siding.

High-Performance Gutter Sealant

Professional-grade sealant specifically formulated for gutter applications. Creates a watertight seal that remains flexible and durable in all weather conditions.

$8.95

Essential for proper end cap installation and sealing leaking gutter joints.

Aluminum Gutter Rivets (50 pack)

Corrosion-resistant aluminum rivets designed specifically for gutter installations. Won't rust or deteriorate over time.

$12.45

Secure your end caps properly to prevent leaks and ensure long-term performance.

Gutter Seam Repair Kit

Complete kit for repairing leaking gutter seams and joints. Includes specialized sealant, reinforcement strips, and application tools.

$19.95

Address all your gutter leak issues with this comprehensive repair solution.

SHIPPING INFORMATION

Shipping options for 5" Box Curved End Caps:

• Standard Shipping: Available nationwide
• Processing Time: Orders typically ship within 1-2 business days
• Tracking: Provided via email for all shipments
• Bulk Orders: Special shipping rates available
• Local Pickup: Available at our Damascus, OR facility

RETURN POLICY

Our return policy for 5" Box Curved End Caps:

• Return Window: 30 days from date of purchase
• Condition: Items must be unused and in original packaging
• Restocking Fee: 15% applies to all returns
• Custom Color Items: Cannot be returned
• Defective Items: Report within 48 hours of receipt for replacement