Our Services

Patio Door Replacement and Installation

Free Post-Storm Inspection

Hail, Wind & Storm Damage - Your Insurance May Cover It*

Viwinco and Andersen Patio Doors for Eastern Pennsylvania Homes

A new patio door can make a room feel brighter, easier to use, and more connected to the outdoors. It can also solve the everyday frustrations that come with an older door, such as sticking panels, cold drafts, poor locks, fogged glass, or a frame that no longer seals properly.

Lehigh Gap Exteriors installs Viwinco and Andersen patio doors for homeowners across Eastern Pennsylvania who deal with these issues. We often recommend Viwinco because their patio doors are built for durability, regular use, and changing weather conditions. Their products are designed to resist common problems like warping, hardware failure, and seal failure. We also offer Andersen patio doors for homeowners who prefer that product line. Our team helps you choose a patio door that fits your home, your opening, and the way you use the space.

Learn more about Viwinco’s doors:
https://www.viwinco.com/s-series-sliding-glass-patio-door

Patio doors usually get used often and used hard. Viwinco builds its new construction and replacement patio doors to stand up to constant use and abuse and keep on performing to your high standards.

Patio Door Options We Install

Most patio door projects come down to two key decisions: the product line and the finish. We keep the process simple by walking you through practical options that make sense for Pennsylvania homes.

Vinyl Patio Doors: These are a popular choice because they’re low-maintenance, durable, and built to hold their shape through seasonal temperature swings. Vinyl doesn’t need to be painted or stained, and it resists moisture damage over time.
Wood Interior Finishes: This is a good option for homeowners who want a warmer, more traditional look inside the home. If your trim, cabinetry, or interior doors have a classic wood appearance, a wood interior patio door can help the new door feel more natural in the room. The exterior side is still built to handle the weather, giving you the look of wood inside without the same maintenance demands outside.

Neither option is the right answer for every home. Vinyl is usually the simpler, lower-maintenance choice. Wood interiors offer a more traditional finish. During your estimate or showroom visit, we will help you compare both. We can also help you with other door options.

Related Service Categories

Entry Doors

Patio Doors

Storm Doors

Sliding Patio Door Options for Replacement and New Construction

Sliding patio door replacement is one of the most common patio door projects we complete throughout the Lehigh Valley and surrounding areas. If your current door drags, sticks, leaks air, will not lock properly, or has fogged glass between the panes, it may be time to consider replacement.

For replacement projects, we work within the existing opening whenever possible. Before installation begins, we inspect the current frame, threshold, and surrounding structure to identify any hidden issues such as water damage, rot, or shifting. If the opening is in good condition, the new door can usually be installed cleanly. If adjustments are needed, we explain that before the project moves forward.

We also install patio doors for remodels, additions, and new openings. These projects require a different level of planning because the door has to be properly framed, sized, sealed, and tied into the surrounding wall and exterior materials.

Our goal is not to force a standard product into your home. We match the patio door to the opening, the structure, and the door's performance requirements.

What to Expect During Patio Door Installation

A good patio door installation starts with a careful look at the existing door, frame, opening, and surrounding structure. That early review helps us spot potential issues before work begins, so the installation is more predictable.

1. Review the Existing Door and Opening: We inspect your current patio door, rough opening, frame, threshold, and nearby exterior materials. If there are signs of water damage, shifting, storm damage, or structural concerns, we identify them before the old door comes out.

2. Remove the Old Patio Door: Once the project is ready to begin, we carefully remove the existing patio door and prepare the opening for the new unit. This includes checking the surrounding area and making any needed adjustments before installation.

3. Install and Seal the New Door: The new patio door is set, leveled, secured, and sealed around the frame. Proper sealing helps reduce drafts, protect against water intrusion, and support smooth long-term operation.

4. Check Operation and Final Details: Before the job is complete, we check that the door opens smoothly, locks securely, aligns correctly, and looks finished inside and out. Every patio door installation is backed by our 10-year workmanship guarantee, which covers the quality of our installation work separate from the manufacturer’s product coverage.

You can also view our project gallery to see examples of completed work or read homeowner feedback.

Our Service Areas

Lehigh Gap Exteriors serves homeowners across Eastern Pennsylvania from our showroom in Walnutport, PA. Our primary service counties include Lehigh, Northampton, Monroe, Carbon, and Bucks.

That gives us easy reach across the Lehigh Valley, the Poconos, Bucks County, and surrounding communities. Because we work in this region every day, we understand the local climate, common home styles, and the installation details that matter in Pennsylvania weather. Check out our full list of service areas.

Common Questions About Patio Door Replacement

Replacement may make more sense if the frame is warped or damaged, the panel drags or will not stay on track, the glass is fogged between panes, or you feel drafts even when the door is fully closed. Some hardware problems, like worn rollers or a failing lock, can sometimes be repaired. When the frame, seal, or glass unit has failed, replacement is often the better long-term option.

We install Viwinco and Andersen patio doors. These product lines give homeowners reliable options for different styles, budgets, and performance needs.

Yes. Vinyl patio doors are durable, low-maintenance, and a strong choice for many Pennsylvania homes. Wood interior finishes provide a warmer, more traditional look and work well in homes with classic trim or millwork. We can walk you through both options during your estimate or showroom visit.

Yes. We inspect the existing frame and opening before installation. If the opening is in good condition, the replacement is usually straightforward. If we find structural concerns or hidden damage, we explain what needs to be addressed before the new door is installed.

Yes. In addition to replacing existing patio doors, we can install patio doors as part of a remodel, addition, or new opening. These projects involve additional planning for framing, sizing, sealing, and exterior integration.

Yes. Ask about our low monthly payment options when you contact us for an estimate.

Yes. Our showroom in Walnutport, PA, lets you compare patio door options in person. This is especially helpful if you are deciding between vinyl and wood interior finishes or want a better feel for the door's size, operation, and appearance.

Our 10-year warranty backs every patio door installation. This covers the quality of our installation work and is separate from the manufacturer’s product coverage.

Get a Free Estimate for Your Patio Doors

If your patio door is hard to open, drafty, damaged, outdated, or no longer right for your home, Lehigh Gap Exteriors can help you choose a better replacement. You can start with a free estimate, visit our Walnutport showroom to see options in person, and ask about low monthly payment options. Contact us to schedule your free patio door estimate.