Work With the Most Trusted Window and Door Company

Get the windows and doors you want at Bethlehem Windows LLC. We sell, install and service all types of windows and doors. In business since 1968, let us put our more than 50 years of industry experience to work for you and your home.

We are the Lehigh Valley's largest and most trusted window and door company. We offer a 24-month workmanship window warranty and a lifetime non-prorated transferrable window warranty. Call (610) 866-9500 for a FREE estimate.

Why Choose Bethlehem Windows LLC?

Bethlehem Windows LLC's dedicated team provides exceptional window and door sales, installation and service to the Bethlehem, PA community. We have more than 50 years of industry experience to put to work for you. We offer FREE estimates and no high-pressure sales. Get beautiful windows and doors with Bethlehem Windows LLC. Don't wait—call now or fill out our form to schedule your FREE estimate and see the Bethlehem Windows LLC difference for yourself.

In Business Since 1968

Senior and Veteran Discounts

FREE Estimates

No High-Pressure Sales

Family Owned

Ideal Windows

Joyce Manufacturing

Simonton

Windows & Doors

ProVia Doors

Window Installations Come With a 24-Month Workmanship Warranty

We’re proud to represent the brands above as certified installers of their products. When you choose Bethlehem Windows LLC for your window or door installation in Allentown, PA, you put your trust in a family-owned company with over 50 years of experience in the industry. You can rest easy knowing your new window or door will be installed with the utmost quality.


For more information on our products or services, don’t hesitate to reach out to our team! You can use our Contact page to get in touch or give us a call at the number above. We’d love to start a conversation about how Bethlehem Windows LLC can help you. We look forward to working with you soon!

Here's what our satisfied customers are saying...

At Bethlehem Windows LLC, we take pride in providing exceptional window and door products, installation and service to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us to improve and helps others make informed decisions. Please take a moment to leave a review of Bethlehem Windows LLC and let others know what you think.

Frequently Asked Questions

  • What types of home improvement services does your company specialize in for local homeowners?

    Our dedicated team focuses on providing high-quality exterior remodeling solutions that enhance the energy efficiency and aesthetic appeal of your residence. We specialize in the installation of premium replacement windows, durable siding, and secure entry systems. One of our most sought-after services is professional door installation in Allentown, PA, where we help homeowners select the perfect materials to match their architectural style. We understand that your home is your greatest investment, so we use only the most reliable products on the market to ensure long-lasting results. Whether you are looking to lower your monthly utility bills with better insulation or you want to boost your curb appeal, our crew has the expertise to handle the project from start to finish.

  • How do I know when it is the right time to replace my existing entry or patio doors?

    There are several warning signs that indicate your current entryways are no longer performing as they should, such as drafts, visible light around the frame, or difficulty opening and closing the unit. If you notice that your cooling and heating costs are rising unexpectedly, it might be due to air leakage through an aged threshold. When you contact us for a professional door installation in Allentown, PA, we perform a thorough assessment of your current setup to determine if a replacement is necessary. Often, older wood doors warp or rot over time, leading to security concerns. By choosing to upgrade with our team, you ensure that your home remains protected against the elements while enjoying a refreshed look for your entryway.

  • What should I expect during the actual process of upgrading the doors in my home?

    We believe in a transparent and streamlined process that minimizes disruption to your daily routine while maintaining the highest standards of craftsmanship. Our process begins with a detailed measurement of your opening to ensure a custom fit that prevents gaps and air infiltration. Once your custom product arrives, our factory-trained technicians arrive on-site to perform the door installation in Allentown, PA with precision and care. We take great pride in our clean workspace policy, meaning we protect your flooring and furniture during the job and dispose of your old materials once the work is complete. Our team finishes by testing the hardware and weatherstripping to make sure everything operates smoothly and provides the airtight seal you expect.

  • Are there specific energy-efficient features I should look for when selecting new products?

    Energy efficiency is at the core of everything we do, and we offer a variety of products designed to keep your home comfortable regardless of the season. When we discuss options for your door installation in Allentown, PA, we often recommend insulated fiberglass or steel cores that offer significantly higher R-values than traditional wood. You should also look for features like multi-paned glass with Low-E coatings and argon gas fills if your door includes a window element. These technologies reflect infrared light and keep heat inside during the winter while blocking solar heat gain during the summer. Our experts will guide you through the various ratings available so that your new installation provides the maximum possible return on investment.

  • How does your team ensure that the new products will match my unique architectural style?

    We recognize that every home in our community has its own personality, ranging from historic colonials to modern suburban builds. To ensure a perfect match, we offer an extensive catalog of styles, colors, finishes, and hardware options for every door installation in Allentown, PA. Our design consultants work closely with you to choose decorative glass patterns or sidelights that complement your home's exterior palette. We can provide wood-grain textures that offer the beauty of natural timber without the maintenance headaches, or sleek modern designs for a more contemporary aesthetic. By customizing every aspect of the unit, we help you create a grand entrance that makes a lasting impression on visitors.

  • What kind of maintenance is required to keep my new exterior fixtures looking their best?

    One of the primary benefits of the modern materials we use is that they require very little upkeep compared to older, traditional products. When we complete a door installation in Allentown, PA, we provide you with simple care instructions to help extend the life of your investment. Generally, a simple cleaning with mild soap and water is all that is needed to keep the finish looking vibrant and new. Unlike wood, our fiberglass and vinyl options do not require frequent sanding, staining, or painting to prevent rot or fading. We also recommend checking the weatherstripping once a year to ensure it remains pliable and clear of debris, which helps maintain the energy-efficient seal we established during the initial setup.

  • Why is it important to hire a professional contractor rather than attempting a DIY replacement?

    While many homeowners enjoy tackling small projects around the house, exterior entryways require a level of precision that is difficult to achieve without professional tools. A poor fit can lead to structural damage, water leaks, and a total loss of energy efficiency. When you rely on our team for your door installation in Allentown, PA, you are benefiting from years of specialized training and a deep understanding of local building codes.

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