Build Window Well Cover: DIY Guide (Step-by-Step)

18 minutes on read

Imagine transforming your home's exterior by learning how to build window well cover and prevent debris from entering your basement. Window wells themselves, often installed by companies like ACM Window Well, are vulnerable to filling with leaves, snow, and even small animals, causing potential water damage. The process of building a custom cover involves precise measurements using tools like a digital measuring tool, to ensure a snug fit that keeps unwanted elements out. Plus, completing this DIY project adds a touch of personal craftsmanship to your home, showcasing your skills and saving you money compared to purchasing a pre-made solution from a supplier like Granger.

Protecting Your Home with a DIY Window Well Cover

Window well covers: those unsung heroes of home maintenance. They might not be the flashiest addition to your property, but they quietly and diligently protect your basement windows and, more importantly, your home's foundation. Let's be honest, window wells without covers are just open invitations for trouble.

Why Bother with Window Well Covers?

Think of them as shields against the elements and unwanted guests (both animal and debris-related). They're designed to keep water, leaves, snow, and critters out of your window wells, preventing potential headaches down the road. A properly installed cover makes a world of difference.

The DIY Advantage: Why Build Your Own?

Now, you might be wondering, "Why not just buy a pre-made cover?" Good question! While store-bought options are available, building your own offers several compelling advantages:

  • Custom Fit: Pre-made covers often come in standard sizes, which might not perfectly fit your window wells. Building your own ensures a snug, custom fit, maximizing protection.

  • Cost Savings: Let's face it, home improvement projects can be expensive. DIY window well covers can be significantly cheaper than buying pre-made ones, especially if you have multiple window wells to cover.

  • Durability Control: You get to choose the materials! This means you can opt for higher-quality, more durable materials than what's typically offered in mass-produced covers.

  • Personal Satisfaction: There's a certain satisfaction that comes from building something yourself. Plus, you can customize the design to match your home's aesthetic.

Safety First: Protecting Your Family

Safety is paramount, especially if you have children or pets. Open window wells can be a fall hazard. A sturdy, well-built cover eliminates this risk, providing peace of mind.

Debris Defense: Keeping Things Clean

Leaves, twigs, and other debris can quickly accumulate in window wells, creating a breeding ground for moisture and pests. A cover acts as a barrier, keeping your window wells clean and dry.

Energy Efficiency: Saving Money on Bills

Believe it or not, window well covers can even contribute to energy savings. By preventing drafts and insulating the window well, they help maintain a consistent temperature in your basement, reducing your heating and cooling costs.

The Dry Foundation Advantage

A dry window well is a happy window well – and a happy foundation. Excessive moisture can lead to:

  • Water Damage: Seeping through cracks and causing structural issues.
  • Mold Growth: Creating unhealthy living conditions.
  • Foundation Problems: Leading to costly repairs.

Investing in a DIY window well cover is an investment in your home's long-term health and well-being.

Planning is Key: Assessing and Preparing for Your Build

Before you even think about picking up a saw or drilling a single hole, a solid plan is your best friend. Rushing into this project without proper preparation is like navigating a maze blindfolded – you might get through it, but chances are you'll end up with a few bumps and bruises along the way.

Taking the time to carefully assess your needs, gather the right materials, and understand any potential hurdles will save you time, money, and frustration in the long run.

Measuring Your Window Well: Precision is Paramount

Forget "close enough." When it comes to measuring your window well, precision is paramount.

Grab your measuring tape and get ready to be meticulous.

Measure the length and width of the window well at its widest points. Don't assume the dimensions are uniform; window wells can be surprisingly irregular.

Next, measure the depth from the top edge of the well to the bottom.

This measurement is crucial for determining the overall size and shape of your cover.

Also, take note of any obstructions like pipes, rocks, or oddly shaped edges.

These will need to be factored into your design to ensure a snug and functional fit.

Sketching a rough diagram of the window well with all the measurements and obstructions clearly marked is highly recommended.

Drainage Check: Ensuring Proper Water Flow

A window well cover is designed to keep water out, but it's equally important to ensure that any water that does get in can drain properly.

Check the bottom of the window well for signs of standing water or poor drainage.

If water tends to accumulate, it's a sign that the drainage system is clogged or inadequate.

The simplest solution is often to add a layer of gravel to the bottom of the well.

This will help to improve drainage and prevent water from pooling around your basement window.

You might also consider checking the drainpipe itself for obstructions.

A garden hose can sometimes be used to flush out any debris that may be blocking the flow of water.

Material Selection: Choosing the Right Components

Choosing the right materials is critical to the longevity and functionality of your window well cover.

You'll need to consider both the cover material itself and the framing material.

Cover Materials: Balancing Durability and Cost

The cover material needs to be durable enough to withstand the elements and clear enough to let in sunlight. Here are a couple of solid contenders:

  • Polycarbonate Sheets: These are known for their exceptional durability, clarity, and UV resistance.

    They can withstand impacts and extreme temperatures, making them a great choice for long-term use.

    The main downside is the cost, as polycarbonate sheets tend to be more expensive than other options.

  • Acrylic Sheets: Acrylic sheets are a more budget-friendly option that offers good clarity and scratch resistance.

    However, they are more brittle than polycarbonate and may be more prone to cracking or shattering upon impact.

Framing Materials: Strength and Aesthetics

The frame provides structural support for the cover and can also enhance its appearance.

  • Aluminum Framing: Aluminum is a lightweight, rust-resistant material that's easy to work with.

    It's a great option if you want a clean, modern look.

    Aluminum framing can be a bit more expensive than wood, but its durability and low maintenance make it a worthwhile investment.

  • Wood Framing: Wood offers a more traditional aesthetic and can be a cost-effective choice.

    However, it's important to use weather-resistant wood, such as cedar or redwood, and to properly seal and paint or stain the wood to protect it from moisture and rot.

    Regular maintenance will be required to keep a wooden frame in good condition.

Essential Hardware: Holding it All Together

Don't skimp on the hardware! Investing in quality components will ensure your cover lasts.

You'll need:

  • Screws
  • Bolts & Nuts
  • Hinges
  • Latches/Clamps
  • Sealant/Caulk
  • Hardware Cloth/Mesh (for ventilation)

Tool Checklist: Preparing Your Arsenal

Having the right tools on hand will make the building process much smoother and more efficient.

Here's a list of essential tools you'll need:

  • Measuring Tape
  • Saw (Circular, Jigsaw, or Miter Saw)
  • Drill/Driver
  • Square
  • Level
  • Clamps
  • Safety Glasses
  • Gloves
  • Utility Knife
  • Caulk Gun

Building Codes and Permits: Knowing the Rules

Before you start building, it's essential to check your local building codes and regulations regarding window well covers.

Some municipalities may have specific requirements for materials, dimensions, or safety features.

Ignoring these regulations could result in fines or the need to redo your project.

It's also possible that you may need to obtain a building permit before constructing your window well cover. Contact your local building department to inquire about permit requirements.

Cost Estimation: Budgeting for Your Project

Creating a budget before you start building will help you stay on track and avoid any financial surprises.

The cost of your DIY window well cover will depend on several factors, including the size of the window well, the materials you choose, and the cost of labor (if you decide to hire someone to help).

Research the cost of materials at your local hardware store or online retailers.

Don't forget to factor in the cost of any tools you may need to purchase or rent.

Building the Frame: Foundation of Your Cover

Planning is Key: Assessing and Preparing for Your Build Before you even think about picking up a saw or drilling a single hole, a solid plan is your best friend. Rushing into this project without proper preparation is like navigating a maze blindfolded – you might get through it, but chances are you'll end up with a few bumps and bruises along the way. With your materials selected and measurements meticulously taken, you're now ready to build the very skeleton of your window well cover: the frame. This section will guide you through the process, ensuring that you have a sturdy and well-fitted frame to build upon.

Cutting the Frame Materials: Precision Cutting for a Perfect Fit

Think of the frame as the backbone of your entire project. Accurate cuts are absolutely crucial for a snug fit and a professional-looking finished product.

So, grab your measuring tape and double-check those measurements one last time. It's always better to be safe than sorry!

Using a circular saw, jigsaw, or miter saw (whatever you're most comfortable with), carefully cut the aluminum or wood framing to the dimensions you determined earlier.

A miter saw can be extremely helpful for making precise, angled cuts if you're opting for a more decorative frame design.

Take your time, and don't rush the process. Remember to always wear safety glasses to protect your eyes from flying debris.

Accuracy here directly translates to a better fitting, stronger, and longer-lasting cover.

Assembling the Frame: Creating a Solid Structure

With the pieces cut, it's time to assemble the frame. This is where your vision really starts to take shape.

Lay out the pieces on a flat surface, and get ready to transform them from individual components into a cohesive structure.

Start by joining the corners using screws or bolts and nuts. If you're using wood, consider using wood glue in addition to screws for extra strength.

This is especially important if you live in an area with heavy snowfall or strong winds.

A square is your best friend during this step! Constantly check that the corners are perfectly square.

Even a slight deviation from 90 degrees can throw off the entire cover and cause problems later on.

Clamps are also invaluable here. Use them to hold the pieces together tightly while you're screwing or bolting them.

This ensures a solid, gap-free connection. Don't overtighten and strip the screws though! That is a headache you do not want to deal with.

Adding Hinges and Latches: Functionality and Security

A window well cover that’s difficult to open is hardly better than no cover at all. That's why we’re adding hinges.

Strategically position your hinges to allow for easy access to the window well. Typically, two hinges are sufficient for a standard-sized cover.

For larger covers, you might want to consider using three hinges for added support.

Mark the positions for the hinges and attach them to both the frame and the cover using screws.

Make sure the screws are long enough to provide a secure hold but not so long that they poke through the other side.

Now, for security! Latches or clamps will prevent the cover from accidentally opening, especially during strong winds or storms.

Choose latches or clamps that are weather-resistant and easy to operate. Install them on the opposite side of the hinges.

Think about ease of use here. You want to be able to quickly and easily open and close the cover when needed.

Ensure that the latches or clamps securely fasten the cover to the window well frame, preventing any unwanted access or accidental openings. A well-secured cover is a safe cover!

Installing the Cover Material: Creating a Protective Barrier

Now that you have the frame built, it's time to add the actual cover, the protective shield that will keep your window well safe and dry. This step involves carefully cutting and attaching your chosen material – polycarbonate or acrylic – and incorporating ventilation to prevent condensation.

Cutting the Polycarbonate or Acrylic Sheet: Achieving a Clean Cut

Precision is key when cutting your polycarbonate or acrylic sheet. A clean, accurately sized piece will ensure a snug fit and a professional finish.

Measuring and Marking for Accuracy

First, lay the sheet on a flat, stable surface. Carefully measure the inside dimensions of your frame opening. Remember to double-check your measurements!

Use a permanent marker to clearly mark the cutting lines on the sheet, using a straight edge. Account for any overlap you want on the frame. The goal is to mark the sheet so that it fits seamlessly within your frame.

Scoring and Snapping: A Controlled Break

For thinner sheets (typically less than 1/4 inch), the score-and-snap method works well. Using a sharp utility knife and a straight edge, score along the marked line several times. Apply moderate pressure with each pass.

The goal isn't to cut all the way through. Instead, you want to create a deep groove.

Once you have a good score, carefully align the scored line with the edge of a table or workbench. Apply firm, even pressure on both sides of the line. The sheet should snap cleanly along the score.

Prioritize Safety First

Always wear safety glasses when cutting polycarbonate or acrylic. These materials can produce sharp shards when cut or broken. Gloves are also recommended to protect your hands.

Attaching the Sheet to the Frame: Securing the Cover

With your sheet cut to size, it's time to attach it securely to the frame. Screws are typically the best option, providing a strong and reliable hold.

Pre-Drilling: Preventing Cracks and Breaks

Polycarbonate and acrylic can be prone to cracking if you drive screws directly into them. To prevent this, always pre-drill holes before inserting screws. Use a drill bit that's slightly larger than the screw diameter.

Space the holes evenly around the perimeter of the sheet, about every 6-8 inches. This will distribute the stress and prevent warping.

Securing the Sheet: Even Pressure is Key

Position the sheet carefully within the frame. Align the pre-drilled holes with the frame. Use screws with a flat head to avoid creating pressure points.

Tighten the screws gradually. Avoid over-tightening, as this can also cause cracking. The goal is to create a snug fit without stressing the material.

Adding Hardware Cloth/Mesh for Ventilation: Preventing Condensation

Condensation can be a real problem in window wells. It can lead to mold growth and other moisture-related issues.

Adding hardware cloth or mesh to your cover provides ventilation. It helps to prevent condensation from forming.

Cutting the Mesh: A Snug Fit

Measure and cut the hardware cloth or mesh to fit an opening in your frame. This could be a section you specifically designed for ventilation, or an existing opening. Use wire cutters to cut the mesh to size.

Attaching the Mesh: Secure and Even

Attach the mesh to the frame using staples, small screws, or even strong adhesive. Make sure the mesh is pulled taut and is securely fastened to prevent it from sagging or coming loose. Proper ventilation helps ensure your window well remains dry and problem-free.

Finishing and Installation: Completing Your Project

Installing the Cover Material: Creating a Protective Barrier

Now that you have the frame built, it's time to add the actual cover, the protective shield that will keep your window well safe and dry. This step involves carefully cutting and attaching your chosen material – polycarbonate or acrylic – and incorporating ventilation to prevent condensation. But the job isn't quite done yet! It's time to put the finishing touches on your new window well cover and get it securely installed.

Sealing the Edges: Creating a Waterproof Barrier

Creating a waterproof seal around the edges is a critical step. Water can find its way into even the tiniest gaps, so meticulous sealing is essential for protecting your window well and your home's foundation. This is where sealant or caulk comes in handy.

Applying a bead of sealant prevents water from seeping between the frame and the cover material.

Choosing the Right Sealant

Selecting the right sealant is important for long-lasting protection. Opt for a high-quality, exterior-grade sealant specifically designed for use with the materials you've chosen for your cover.

Look for sealants that are UV-resistant, waterproof, and flexible. Flexibility is key, as it allows the sealant to expand and contract with temperature changes without cracking.

Mastering the Caulk Gun

Using a caulk gun might seem intimidating, but with a little practice, you'll get the hang of it.

Start by cutting the tip of the sealant tube at a 45-degree angle. The size of the opening will determine the thickness of the bead. Load the tube into the caulk gun and apply steady pressure to the trigger.

Move the gun slowly and smoothly along the edges of the cover, maintaining a consistent bead. For a professional finish, smooth the bead with a wet finger or a sealant smoothing tool immediately after application. Wipe away any excess sealant with a damp cloth.

Installing the Cover: Positioning and Securing

With the sealant applied and dried, it's time for the moment of truth – installing the cover over your window well.

Proper Positioning

Carefully position the cover over the window well, ensuring it aligns properly with the opening. Take your time and make sure it sits evenly.

Use a level to check that the cover is perfectly horizontal. This will prevent water from pooling on the surface and ensure proper drainage.

If your window well is not perfectly square, you may need to make minor adjustments to the cover to ensure a snug fit.

Securing the Cover

Now that the cover is in place, it's time to secure it. This will prevent it from shifting or blowing away in strong winds.

Final Checks for Stability

Before you call the job complete, give everything a final once-over.

Double-check that all latches or clamps are securely fastened. Test them to make sure they hold the cover firmly in place.

Give the cover a gentle push to make sure it doesn't wobble or shift. If it does, identify the source of the instability and make any necessary adjustments.

With these final checks completed, you can rest assured that your DIY window well cover is securely installed and ready to protect your home.

Maintenance and Safety: Protecting Your Investment

Now that your DIY window well cover is installed, it's essential to understand how to properly maintain it and ensure it remains a safe and effective solution. Think of it as an investment – a little ongoing care will significantly extend its lifespan and protect your home for years to come. Neglecting maintenance or disregarding safety precautions can quickly undo all your hard work, leading to costly repairs or, worse, potential hazards.

Regular Inspections: Catching Issues Early

The cornerstone of any good maintenance plan is regular inspection. Make it a habit to visually inspect your window well covers at least a couple of times a year – ideally in the spring and fall.

Why? Because seasonal changes can bring different challenges, from heavy rain and snow to falling leaves and debris.

What should you be looking for?

  • Cracks or damage: Check the polycarbonate or acrylic sheet for any signs of cracking, chipping, or warping.
  • Frame integrity: Ensure the frame is still sturdy and that there are no loose screws or signs of rust (if using metal).
  • Sealant condition: Inspect the sealant around the edges to make sure it's still intact and forming a watertight barrier.
  • Hinge and latch functionality: Test the hinges and latches to confirm they are operating smoothly and securely.

Addressing minor issues promptly can prevent them from escalating into major problems. A loose screw can be tightened, a small crack can be sealed, and a worn hinge can be replaced – all relatively simple fixes that can save you from having to rebuild the entire cover down the road.

Cleaning: Keeping Things Clear and Functional

A clean window well cover is not only more aesthetically pleasing but also more functional. Over time, dirt, leaves, and other debris can accumulate on the cover, blocking sunlight and potentially hindering drainage.

Make it a point to clean your window well covers at least once a year, or more frequently if you live in an area with heavy foliage or dusty conditions.

How do you clean a window well cover?

  1. Remove debris: Start by sweeping away any loose leaves, twigs, or other large debris.
  2. Wash the surface: Use a mild soap and water solution to wash the cover, using a soft brush or sponge to remove dirt and grime. Avoid harsh chemicals or abrasive cleaners, as these can damage the polycarbonate or acrylic.
  3. Rinse thoroughly: Rinse the cover thoroughly with clean water to remove any soap residue.
  4. Dry: Allow the cover to air dry completely before replacing it.

By keeping your window well covers clean, you'll ensure that they continue to provide optimal protection and allow natural light to enter your basement.

Weight Capacity: Understanding the Limits

While a well-built window well cover can be surprisingly strong, it's crucial to understand its limitations regarding weight capacity. These covers are generally not designed to support the weight of a person, heavy objects, or large accumulations of snow.

Walking on or placing heavy items on the cover can cause it to crack, warp, or even collapse, potentially leading to injury or damage.

Be mindful of the weight limitations, and never use the window well cover as a step or platform. If you live in an area with heavy snowfall, it's a good idea to clear the snow from the cover periodically to prevent excessive weight buildup. Also, when choosing materials, aim for the most durable option affordable for your budget and project.

By following these maintenance and safety tips, you can ensure that your DIY window well cover remains a reliable and effective solution for protecting your home for many years.

FAQs: Building Your Own Window Well Cover

What materials will I need to build a window well cover?

You'll typically need lumber (like pressure-treated wood), polycarbonate sheets for the top, screws, measuring tape, a saw, a drill, and potentially paint or sealant. The specific amount depends on the size of your window well. The DIY guide outlines the exact materials needed to build a window well cover.

How do I measure my window well for the cover?

Accurately measure the width and length of your window well at the top. Add a few inches to each dimension to allow for an overhang. This overhang helps prevent water and debris from entering. The guide provides detailed instructions for precise measurements for your build window well cover project.

Is it difficult to build a window well cover myself?

The difficulty depends on your DIY experience. The "Build Window Well Cover" guide breaks down the process into manageable steps with clear instructions and diagrams. With basic carpentry skills and patience, most homeowners can successfully build a window well cover.

Why is it important to have a window well cover?

A window well cover keeps out debris, leaves, snow, and small animals, preventing them from accumulating in your window well. It also adds a layer of safety, preventing accidental falls into the well. A properly constructed build window well cover enhances safety and protects your basement window.

And that's it! You've successfully learned how to build a window well cover. Now, go forth and protect those window wells – and enjoy the peace of mind that comes with knowing you tackled this DIY project yourself! Happy building!