Slider Windows We Back Our Work with 100% Satisfaction Guarantees

Slider Windows in Maryland

Top-Notch Customer Service & the Best Products Available

Our vinyl sliding windows are designed to maximize light when closed and increase ventilation when open. All Rooftop Designs, sliding windows are horizontal sliding windows that feature two panels that slide from side to side and are constructed using the highest-quality materials. Horizontal sliding window replacements ensure maximum durability and energy efficiency when compared to vertical sliding windows.

Our sliding windows are beautiful, easy-to-operate, and carry a no-hassle warranty and buyer protection guarantee. You can trust our sliding windows to deliver a sustainable return on investment.

To schedule a free quote, contact us online or via phone at (855) 741-0575.

what makes us different: 

  • Top 5 CertainTeed Dealers in the United States
  • Offering 50-Year Warranties on New Roofs
  • Backing Satisfaction with Our Work 100%
  • Over 11,000 Roofs Installed Across Several States
  • Using Our Own Crew - Never Day-Laborers

Hear from happy customers

  • Professional, ethical, caring... promises made, promises kept!

    “There are many people who want the job and the money. There are but a few who truly care about the work they do. Steve is one of these people.”

    - Walter R.
  • Would definitely recommend this company!

    “Thank you so much guys, keep up the great work!!!”

    - Angie D.
  • Everyone was super responsive, concerned, and friendly!

    “I would definitely recommend Rooftop Designs.”

    - April J.
  • I'm sorry that I can only give Rooftop Designs 5 stars!

    “They have been nothing but professional and timely.”

    - Bob S.
  • Very easy and reasonable to work with

    “I would recommend this company to family and friends in a heartbeat.”

    - Bradley H.