Replacement Windows Done Right: A Guide for Upgrading Your Windows

Upgrading your windows can significantly boost your home’s energy efficiency, comfort, and look without the need for extensive renovations. In the video above, This Old House expert Tom Silva demonstrates the proper installation of double-hung replacement windows.

Understanding Replacement Windows

Replacement windows are designed to fit into existing window openings, making them a great choice for homeowners who want to upgrade without altering their home’s structure. These windows come in various styles and materials, each offering its own benefits. Understanding what type of window and materials work best for your home can help you make an informed decision.

Types of Replacement Windows

When selecting replacement windows, homeowners have several options to choose from:

• Double-hung windows: Feature two operable sashes that move up and down, which are popular for their versatility
• Casement windows: Hinged on one side and open outward, offering excellent ventilation and unobstructed views
• Sliding windows: Move horizontally along a track, making them easy to operate and clean
• Bay or bow windows: Protrude from the exterior wall, creating additional interior space and adding dimension to the interior’s design

Materials for Replacement Windows

Your choice of material can impact the window’s performance, durability, and upkeep needs:

• Vinyl: Low-maintenance and energy-efficient, making it a popular choice for many homeowners
• Wood: Has a classic appearance with excellent insulation, though it may require more maintenance
• Fiberglass: Durable and resistant to warping, providing a long-lasting window frame
• Aluminum: Lightweight and strong, ideal for modern designs and large window openings

Benefits of Installing Replacement Windows

Upgrading to new windows can provide a ton of advantages for homeowners. These benefits extend beyond mere looks and are practical improvements to daily life.

Energy Efficiency

Modern replacement windows are designed with energy conservation in mind. They often feature:

• Double or triple-pane glass for improved insulation
• Low-E coatings to reflect heat and harmful UV rays
• Argon or krypton gas between panes for better thermal performance

These features can lead to significant savings on heating and cooling costs, making replacement windows a wise investment for energy-conscious homeowners.

Improved Home Comfort

Replacement windows can also increase the overall comfort of your living space by:

• Reducing drafts and cold spots near windows
• Minimizing outside noise 
• Providing better temperature control throughout the home

Enhanced Curb Appeal

New windows can dramatically boost your home’s outward appearance. With a wide range of styles, colors, and finishes available, homeowners can choose windows that complement their home’s architecture and personal taste, giving their house a refreshed and updated look.

Preparing for Window Replacement

Before installing replacement windows, follow these steps to avoid common pitfalls and set up for a successful installation.

Measure for Replacement Windows

Accurate measurements are key to a secure fit:

1. Measure the width and height of the existing window opening at multiple points to get the most accurate measurements.
2. Check for square alignment by measuring diagonally from corner to corner, making sure the opening is even.
3. Account for any out-of-square conditions when ordering windows, as adjustments may be needed during installation. A window is out of square (also known as uneven, unlevel, or crooked) when its angles are not 90 degrees. 

Choose the Right Window Style

Consider factors such as:

• Your home’s architectural style: Match the window style to your home’s design, choosing more rustic windows for craftsman styles and sleeker windows for modern homes.
• Desired functionality (e.g., ventilation, ease of cleaning): Think about what features are most important for your lifestyle, and find a window that meets those specifications.
• Local building codes and regulations: Check that you’re compliant with local standards and restrictions.

Selecting a Qualified Installer

While some homeowners may want to install windows as a DIY project, hiring a professional can provide peace of mind and guarantee your windows are put in correctly. When selecting an expert to do your installation:

• Check for proper licensing and insurance: These are signs of a reputable and qualified installer.
• Read customer reviews and ask for references: This will provide insight into their quality of work and customer satisfaction.
• Get multiple quotes to compare pricing and services: This helps you get a fair price for quality work.

The Installation Process for Replacement Windows

Installing replacement windows requires attention to detail and vigilant technique. In the video, Silva guides us through the installation of double-hung replacement windows, using a sponge-balancing system, highlighting key steps in the process.

Removing the Old Window

The first step involves carefully removing the existing window:

1. Remove interior trim and sash stops by gently prying them off.
2. Cut any sash cords or chains to make sure they’re free from the weight system.
3. Remove the sashes and parting strips
4. Clean the opening and inspect for any damage, and make any necessary repairs before installing the new window.

Installing the New Window

Once the opening is prepared, the new window can be installed:

1. Install a sponge balancing system on each side of the window per the manufacturer’s instructions, paying careful attention to line it up with the window frame.
2. Using a mallet or your fist, tap the balance system into place to make sure it’s secure.
3. With a couple of helpers, hold the window horizontally as you fit it into the balance system, slipping it into the slots carefully.
4. Once you get the window level, drop it down into the system.
5. Stand it up and slide it right into the spring balancers, using a slight bit of pressure.
6. Once it’s in the balancers, push the window up, making sure it’s locked in (wait until you hear a clicking sound, and it stays up on its own).

Testing and Finishing

After installation, it’s important to:

• Open and close the window to make sure it’s operating correctly.
• Check for proper weatherstripping and sealing, and make sure there are no gaps or leaks.
• Apply any final trim or caulking you might need for a clean finish.

Replacement Window Maintenance and Care

Regular upkeep can extend the life of your replacement windows and keep them performing at their best. 

Cleaning Tips

Regular cleaning helps keep up the appearance and function of your windows:

• Use a mild soap and water solution for general cleaning.
• Avoid abrasive cleaners that can damage window surfaces.
• Clean tracks and weep holes to ensure proper drainage, and check these areas periodically to prevent build-up.

Seasonal Maintenance

Perform these tasks annually to keep your windows in tip-top shape:

• Inspect weatherstripping and replace it if worn to keep a tight seal.
• Check for any gaps in caulking and reseal as needed.
• Lubricate moving parts with silicone spray to keep the window moving smoothly.

Cost Considerations When Replacing Windows

The cost of replacement windows can vary widely based on several factors, such as:

• Window size and style
• Material choice
• Energy-efficient features
• Installation complexity

On average, homeowners can expect to pay around $750 for the window itself and an additional $100–$350 per window for installation. While the initial investment may seem substantial, the long-term energy savings and increased home value often justify the expense. Consider getting multiple quotes and evaluating the benefits to make the best decision for you.

Potential Rebates and Incentives

Many regions offer rebates or incentives for installing energy-efficient windows. Check with your local utility company or government programs. These rebates can sometimes offset the initial cost of installation. Additionally, energy-efficient windows can often be included in tax credits, further reducing the financial burden.

Our Conclusion

Replacement windows offer a practical and effective way to improve your home’s energy efficiency, comfort, and appearance. With careful consideration of style, material, and installation methods, replacement windows can be a valuable investment in your home’s future. Whether you take on the project yourself or hire a professional, quality new windows can lead to substantial savings and higher levels of comfort for many years.