The right crawl space window covers guard your basement or crawl space from debris, water, and weather while still admitting light. This guide highlights five top window well cover options and one additional vent cover, all chosen for outdoor durability, UV resistance, and easy installation. Read on to compare features and find a cover that fits your space and climate.
| Product | Brand | Size | Key Benefit | Amazon Link |
|---|---|---|---|---|
| Just Cover It 39″ W x 16″ L Window Well Cover | WINDOW WELL SUPPLY | 39″ W x 16″ L | UV-resistant, built-in backsplash, hardware included | View |
| Just Cover It 42″ W x 16″ L Window Well Cover | WINDOW WELL SUPPLY | 42″ W x 16″ L | Clear polycarbonate with strong aluminum bracing | View |
| Clear Polycarbonate Egress Window Well Cover Elongated JCI 42″W x 13″L | WINDOW WELL SUPPLY | 42″ W x 13″ L | Crystal clarity, 1.5″ flange for snug fit | View |
| Clear Polycarbonate Egress Window Well Cover Sloped Elongated 40″ W x 14″ L | WINDOW WELL SUPPLY | 40″ W x 14″ L | Heavy-duty, UV-resistant, corrosion-resistant bracing | View |
| Clear Polycarbonate Egress Window Well Cover Elongated JCI 40″W x 13″L | WINDOW WELL SUPPLY | 40″ W x 13″ L | 1.5″ flange, UV protection, keeps clarity | View |
Below are five product profiles to help you compare options side by side, followed by a buying guide with practical tips for selecting the right crawl space window cover.
Just Cover It 39″ W x 16″ L Window Well Cover
Brand: WINDOW WELL SUPPLY. Size: 39″ W x 16″ L. This high-strength polycarbonate cover includes hardware for installation and provides protection for window wells, crawl space vents, and egress openings. The UV-resistant coating helps prevent yellowing, and the 1-1/2″ built-in backsplash adds rigidity to withstand adverse weather. Ideal for outdoor window well protection while maintaining visibility and light.
Just Cover It 42″ W x 16″ L Window Well Cover
Brand: WINDOW WELL SUPPLY. Size: 42″ W x 16″ L. Features include hardware with installation, high-strength polycarbonate, UV-resistant coating, and a built-in 1-1/2″ backsplash for enhanced rigidity. The cover is designed to resist dirt and harsh weather while maintaining clarity and light entry to the space beneath.
Clear Polycarbonate Egress Window Well Cover Elongated JCI 42″W x 13″L
Brand: WINDOW WELL SUPPLY. Size: 42″ W x 13″ L. This cover uses 0.177″ thick polycarbonate with UV-resistant coating to maintain clarity. It includes a 1.5″ flange for a firm installation with a snug fit. The design emphasizes durability for outdoor use with reliable protection against debris and rain.
Clear Polycarbonate Egress Window Well Cover Sloped Elongated 40″ W x 14″ L
Brand: WINDOW WELL SUPPLY. Size: 40″ W x 14″ L. Features include heavy-duty polycarbonate, hardware included, UV protection, and rust-free aluminum bracing. The sloped design supports outdoor protection while maintaining visibility and natural light into the space below.
Clear Polycarbonate Egress Window Well Cover Elongated JCI 40″W x 13″L
Brand: WINDOW WELL SUPPLY. Size: 40″ W x 13″ L. Crystal-clear polycarbonate with UV-resistant coating and a 1.5″ flange for firm installation. This cover is designed to protect outdoor window wells from debris and rain while preserving light transmission.
Just Cover It 39″ W x 16″ L Window Well Cover (Alternate Angle)
Brand: WINDOW WELL SUPPLY. Size: 39″ W x 16″ L. Emphasizes UV resistance, built-in backsplash, and included hardware for outdoor window well protection. Suitable for use with crawl space vents and egress window wells, ensuring long-term durability in various climates.
Buying Guide: Key Purchase Considerations
- Size and fit: Measure your window well opening precisely. A snug fit minimizes water intrusion and wind lift. Look for a flange size (commonly 1.5 inches) that matches your installation needs.
- Material and clarity: Crystal-clear polycarbonate offers strong impact resistance and light transmission. UV-resistant coatings protect against yellowing and sun damage for years of use.
- Durability and climate: Choose rust-free aluminum bracing and UV protection for outdoor exposure. Consider built-in backstops or backsplashes to reinforce the cover in windy or rainy conditions.
- Installation: Hardware-inclusive packages simplify setup. Verify whether the metal window well structure is included or if separate components are needed for mounting.
- Light and ventilation: While blocking debris, ensure the cover still allows adequate light and airflow to prevent moisture buildup in the crawl space.
- Maintenance: Clear polycarbonate is easy to wipe clean; avoid abrasive cleaners that could scratch the surface. Regular inspection helps catch cracks or loosened fasteners early.
- Cost vs. longevity: Higher-quality covers typically cost more upfront but reduce replacement frequency and maintenance over time, especially in harsh climates.