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Troy Yost, President of our company, talks about why we are the right choice in Central PA for your window and door replacement.

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Kitchen Window

The Leader in
Central Pennsylvania
for Replacement Windows & Doors

We provide a fantastic selection of energy-efficient replacement windows & entry, front, storm and patio doors, in addition to professional high-quality installation. There are financing options available so you can have the windows & doors you want, right now. We are based in New Kingstown, PA, right outside of Mechanicsburg and serve the greater Harrisburg area and the Central Pennsylvania region.


Troy and Steve discuss a window replacement job we did on an entire house in Harrisburg.

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July Window & Door Promotion


  • Double Hung Windows one of the most popular styles of replacement windows. They have a lower and upper sash that allows for easy opening and closing.

  • Casement Windows swing out from hinges on the sides, opening vertically away from the window pane, while Awning Windows open horizontally. Both utilize a crank providing the most ventilation. 

  • Bay and Bow Windows will give your living room or den a spacious feel. Bay windows contain three separate window panels, while Bow windows have four to six window panels. 

  • Slider Windows are cost-effective, durable windows that easily glide from side-to-side open and close.

  • Picture Windows will frame the landscape outside your house, bringing beautiful views inside the home.

  • Custom Windows - if you can dream it, we can have it built. To accommodate spectacular views of a property or to enhance a specific room, we can customize a window to various shapes and sizes. 

To see all the windows we provide, please visit our Windows page.



Steel Door

Fiberglass Doors look and feel just like real wood through a proprietary technology called Nickel Vapor Deposition. Fiberglass Doors provide the look of real wood with the durability of fiberglass.


Steel Doors are great for home security, as they are the strongest, most durable door on the market. They are built with 20-gauge steel, which is 49% more galvannealed steel than standard 24-gauge doors in the marketplace.


Storm Doors come in a robust or slender frame and have heavy duty stainless steel retractable screens. Choose full view, three-quarter or half-view aluminum storm door styles. 


Patio Doors

We offer Sliding Glass Patio Doors, Hinged/Swinging Patio Doors and French Patio Doors.

Patio Door in Mechanicsburg
Storm Door in New Cumberland
Fiberglass Door in Camp Hill

Troy discusses a Front door and Storm door we installed on a Victorian home in New Cumberland.

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Satisfied Customers

Carol Caplinger-Lemons,

Boiling Springs

"This company is amazing. They give old fashioned and personal service: the customer is important. And they stand behind their product. No detail is too small. I would do business with them again. Thanks!"


Regina Marks-Lee,


"An awesome team! We have had multiple doors and windows installed by Chris, Troy and the team! Always thoroughly explained the costs, the process and project time line. The crews are awesome and understanding of the homeowners concerns! We won't use anyone else!! Cheers!! More importantly, give them a call!"


Ann Breithaupt,


"We have had a great experience with Grand Opening. The customer service has been amazing. We have had the owners follow up with us as well as the sales rep and Dennin who thoroughly checked the finished windows for quality assurance. Our installers did an excellent job and were pleasant and professional. I highly recommend this company. So happy they found me!!"


Our client Andrew in Camp Hill provides a client testimonial on the replacement windows we installed on his house.

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We Proudly Use

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Brand Products

See Some of Our Window & Door Work

Why Choose Us
Handyman on the Phone

Free Estimates

Our team will come to your home for free and

assess your needs.

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Hassle-Free Purchasing Process

Our knowledgeable staff will show you our wide array of replacement windows and doors to determine the right fit for your home.

Window Installation

Expert-Fit Installation

Our installers will use the utmost of care to ensure your windows and doors receive a perfect fit.

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Financing Options

We provide financing options, so you can have the windows and doors you want, to compliment your home.


Our customer Tawna in Mechanicsburg discusses her experience. 

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Our Location and Service Area:

Grand Opening provides replacement window and entry, front, storm & patio door sales and installation. We are based in New Kingstown, right outside of Mechanicsburg, Pennsylvania and service the greater Harrisburg area, which includes Harrisburg, Hershey, Mechanicsburg, Camp Hill, Lemoyne, Carlisle and York, as well as the Central PA region. Contact us for a free estimate!

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