Step-By-Step Guide: How To Replace An Interior Door
Replacing Interior Doors: Why It’s a Smart Upgrade
If you’re wondering how to replace an interior door, you’re not alone. Many homeowners decide to change their inside doors to improve style, fix damage, or make their home quieter and safer. Whether it’s a bedroom, bathroom, or hallway, replacing interior doors can make your whole house feel updated. The great news is, it’s a job you can do yourself with a few tools and some time. In this guide, we’ll walk you through the entire process step by step. At Warrior Windows & Doors, we believe every homeowner should feel confident making small changes that improve their home.
Knowing When It’s Time to Replace Interior Doors
Before you start any project, it’s important to know when door replacement is needed. Look at your door closely. If it has cracks, water damage, or doesn’t close properly, it might be time for a change. Some people decide on replacing interior doors to switch from hollow core to solid core doors for better soundproofing. Others want a new look to match a remodel. If you feel a draft or the door squeaks even after fixing the hinges, it’s probably worn out. A fresh door can make a big difference.
How to Replace an Interior Door: Getting Started
To begin, take a few minutes to prepare. First, take down the old door by removing the hinge pins with a screwdriver and hammer. If you're just replacing the door slab, make sure to note the hinge placement and size. If you’re doing a full door and frame replacement, you’ll need to be more careful when removing the frame. Whether you’re doing a full swap or just a slab, plan your steps so everything fits properly. This will make your project go much more smoothly from start to finish.
Tools and Materials You’ll Need Before You Begin
Before you jump in, make sure you have the right tools. Here’s what you need:
Tape measure
Screwdriver or drill
Hammer
Wood shims
Level
Pencil
Pry bar (if removing the frame)
New hinges and door (either slab or pre hung)
Having these items ready helps you avoid delays and mistakes. You don’t need fancy tools just the right ones. Also, check if your new door is prefinished or if you’ll need to paint or stain it later. Planning ahead saves time.
Removing the Old Door Safely and Neatly
Start by removing the hinge pins while holding the door so it doesn’t fall. Set the old door aside. If you’re keeping the frame, check the hinges to see if they’re in good shape. For replacing interior door frames, use a pry bar to gently remove the trim and frame. Be careful not to damage the wall or nearby trim. If the frame is nailed in, use the hammer to tap the nails out from the inside. Clean the opening and remove leftover debris before installing the new door.
Replacing a Slab Door vs. Pre hung Interior Door
There are two types of doors you can install: slab doors and pre hung doors. A slab door is just the door itself no hinges or frame. It’s best when your current frame is still in good shape. You’ll need to measure carefully and transfer hinge locations from the old door to the new one. Replacing pre hung interior doors means you’re using a door that already comes attached to a frame. This is good if your old frame is damaged or not level. It takes a bit more work to install, but gives a clean, secure fit. Decide which kind you need based on the condition of your old frame.
How to Replace an Interior Door with a Pre hung Door
To install a pre hung interior door, place the door and frame into the rough opening. Use wood shims to make sure the door is level on all sides. Check that it opens and closes smoothly. Then, screw through the frame into the wall studs using long wood screws. Once the frame is secured, trim off any extra shim material with a utility knife. You can now add casing or trim around the door to cover gaps. Pre hung doors are great when you're doing a full update, especially if your old doors didn’t hang right or were out of square.
How to Replace a Bedroom Door the Easy Way
Bedroom doors are among the most common to replace. To replace a bedroom door, start by removing the old one as described earlier. Measure the door’s height, width, and thickness. Most bedroom doors are 80 inches tall and 30 or 32 inches wide. If you’re using a slab door, match the hinge and knob placement. If it’s a pre hung door, make sure it fits the opening properly before screwing it into place.
Many people choose solid-core doors for bedrooms. They block sound better and make the room feel more private. A good fit also keeps the room more energy-efficient.
Installing the New Interior Door Correctly
Now it’s time to install your new door. For slab doors, line up the hinges with the existing ones on the frame. Screw them in tightly. Make sure the door opens and closes without rubbing or sticking. Adjust if needed. For pre hung doors, keep checking the level and use shims to adjust the frame. Don’t overtighten screws or nails. Once in place, test the swing and latch. Then, reattach the door casing or trim. You can paint or stain the door now, or wait until later. A smooth finish helps protect the door and makes it look great.
Common Mistakes to Avoid When Replacing Interior Doors in Casa Grande
In Casa Grande, homes may have shifting foundations or humidity changes that affect door frames. Always measure carefully before ordering a new door. Double-check the swing direction, left-hand or right-hand, before buying. It’s easy to get this wrong. Another common mistake is not using shims when needed. Shims help keep the frame square and level. Skipping this step can lead to uneven gaps. Also, avoid using short screws in hinges. Use 2.5- to 3-inch screws to go into the studs and hold the door securely.
What’s the Cost to Replace Interior Doors and When to DIY
The cost to replace interior doors can vary. A basic hollow-core slab door may cost $50–$100. Solid-core doors or custom styles cost more. A pre hung door with frame might cost $150–$300. If you’re hiring a pro, labor can add another $100–$200 per door. But if you do it yourself, you save that amount. DIY is best for people who are patient and can use basic tools. If you’re replacing many doors or fixing damaged frames, a pro might be faster. At Warrior Windows & Doors, we help homeowners decide what works best for their time, budget, and skill level.
Conclusion
Replacing an interior door may seem like a small project, but it can change the entire look and feel of a room. With the right tools, accurate measurements, and a bit of patience, you can do it yourself and enjoy lasting results. Whether you’re changing just one bedroom door or updating your entire home, this project is a smart upgrade that boosts comfort, style, and value. And if you ever feel stuck or want help, remember that Warrior Windows & Doors is always ready to lend a hand with expert advice and high-quality products.
