Interior Door Installation: What to Expect from Start to Finish

October 1, 2025

Whether you're upgrading your home's aesthetics or replacing a worn-out door, interior door installation is a straightforward project, when done right. Understanding what to expect from start to finish can help you avoid surprises and feel confident throughout the process. From choosing the right style to the final touches, here's what the journey typically looks like.

1. Choosing the Right Door Style

The first step is selecting a door that fits both the function and the décor of your space. Interior doors come in a variety of styles, such as panel, flush, French, barn, or pocket doors. Each type has a different use and aesthetic value. Solid wood doors offer soundproofing and a premium feel, while hollow core doors are more budget-friendly. At this stage, you'll also decide on finishes, colors, and hardware to match the interior design of your home.

2. Measuring and Prepping the Space

Before installation, accurate measurements are critical. A professional will measure the existing door frame’s height, width, and depth to ensure the new door fits properly. If the old door is being replaced, it will be removed, and the frame inspected for damage or warping. If there’s structural repair needed, it will be addressed before proceeding. A level base and properly aligned frame are key to the door opening and closing smoothly.

3. Installing the Door Frame and Hardware

Once the frame is prepped, the next step is installing the new door and any required hardware. This includes hinges, latch plates, and the door handle or knob. If it’s a pre-hung door (a door already attached to its frame), installation is typically quicker and easier. The door is leveled and secured to the wall studs, and shims are used to adjust gaps and alignment. Once the frame is secure, hardware is installed with attention to precision to ensure proper operation.

4. Finishing Touches and Cleanup

After the door is in place, trim and casing are added around the frame for a finished look. If the door needs painting or staining, it may be done either before or after installation, depending on the project plan. Any gaps between the frame and the wall are filled with caulk or foam insulation to improve energy efficiency and sound control. Finally, the work area is cleaned up, and the door is tested for functionality and fit.

5. How Long Does It Take?

In most cases, a single interior door installation takes 1–3 hours, depending on whether it’s a simple replacement or a new install with additional framing work. Multi-door projects or custom installations may take longer. Working with a professional ensures accuracy and minimizes delays, especially when dealing with unusual openings or older homes with settled frames.

Trust Local Experts for Seamless Door Installation

If you’re planning an interior door installation in your home, trust the experts at Ortiz Quality Doors in Aurora, Colorado. With over 15 years of experience, our team is known for professional craftsmanship, reliable service, and attention to detail. Whether you're replacing one door or upgrading your entire home, we make the process smooth from start to finish. Contact us today to schedule your installation or get a free quote.

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