How to Run HDMI Cable Through Wall: A Step-by-Step Guide

You may need to run HDMI cables through your walls for a clean, professional installation of your home entertainment system, but you don’t know how to run HDMI cable through wall. Running cables through walls makes it a useful skill to have for each do-it-yourselfer. You can connect cables between rooms without damaging them if you have some basic equipment and patience. 

This step-by-step guide will teach you how to fish HDMI wires through walls while properly connecting them, so they don’t get pinched or twisted.

By the end of this guide, your HDMI cables will have been routed through your walls, allowing you to mount your TV and connect devices without having to worry about visible connections.

With these helpful hints and safety measures, you’ll be able to run cables through more than simply walls inside.

Why & How to Run HDMI Cable Through Wall?

Installing HDMI cables through your walls has many benefits over exposed wiring. Hidden cables are safer, easier to maintain, and help minimize falling risks in the room. 

For the best results, plan your HDMI cable installation carefully before starting. Measure the distance between your HDMI source device like a cable box or Blu-ray player and your HDMI display such as a TV to determine how much cable you will need.

It is best to buy cable specifically intended for in-wall installation that is UL-rated as CL2 or CL3 for fire safety.

You will need to make holes in your walls to pass the HDMI wires between rooms or devices while installing them.

Locate the wall screws with a stud finder and cut holes in the center of the stud bays. Make pilot holes in the studs to fit the cables.

Feed the HDMI wires through the holes and attach them using cable clips or zip ties, so they don’t droop within the wall.

Fix the drywall holes and paint to match the color of your walls. As a result, there will be no visible cords and a professional-looking HDMI connection.

For a clean environment, your living room entertainment system will appear totally connected.

Running HDMI cables through walls requires some effort, but the improved look and performance of your home theater setup is definitely worth it.

Planning Your HDMI Cable Run

Select the best path for your HDMI cable run based on the locations of your input source and output device (HDTV) before you start.

Check the distance between them to make sure you buy an HDMI cable that is long enough. It is recommended to buy a cable rated for in-wall installation that is CL2 or CL3 for fire safety.

  • Look for any obstacles like wall studs, electrical wiring, or plumbing along your desired path. You may need to drill holes through wall studs or floor joists. Ensure there are no live wires or pipes in the wall before drilling.
  • For the most discrete installation, choose a path through closets, attics, basements or behind moulding. You can also install cable raceways or channels along the corners where walls and ceilings meet.
  • Once you determine your path, cut holes in the drywall at your input and output locations and any access points in between, like in the attic or basement.
  • Pull the cable through the holes and leave several feet of slack at each end in case you need to relocate equipment in the future.
  • Secure the cable to wall studs or joists every few feet using cable staples to prevent sagging.
  • Patch and paint the drywall holes, and you now have an HDMI cable cleanly installed through your walls for a professional finish.

Tools and Materials Needed to Run HDMI Through Walls

To run an HDMI cable through walls, you will need the proper tools and materials. Gather the following:

HDMI Cable

Choose a high-speed HDMI cable that is specifically rated for in-wall installation. A cable with a UL CL2 or CL3 fire resistance rating is required for routing through walls.

Fish Tape

A cable puller, sometimes known as a fish tape, is a long, flexible metal tape used to pull cables through walls and small areas. Choose a fish tape that is at least as long as the complete length of the HDMI cable.

Wall Plates

HDMI wall plates allow you to connect the HDMI cable to devices on both sides of the wall. Choose wall plates that match the style of your room and are suitable with the HDMI cable and plugs on your devices.

Instructions for Running HDMI Cables Through Walls

To run an HDMI cable through your wall, you will need to create an access hole, fish the cable through, and patch the hole. Follow these steps carefully to complete the installation process:

  1. Turn off power at the circuit breaker for the area of the wall you will be working on. Ensure all cables and wires in the wall are de-energized for safety.
  2. Use a stud finder to locate the studs in the wall. You will need to drill through the studs to run the cable horizontally through the wall. Mark the stud locations on the wall.
  3. Determine the paths for running the cable horizontally and vertically inside the wall. You will need access holes on opposite sides of studs and at top and bottom plates of the wall. Mark the locations of all necessary access holes on the wall.
  4. Use a drill to create pilot holes, then widen the holes to about 1 inch in diameter. Make holes at a downward angle for the top plates and upward angle for the bottom plates for easier cable installation.
  5. Install wall plates or low-voltage brackets over the access holes to protect the cable. Feed one end of the HDMI cable through an upper access hole until it emerges from the lower access hole.
  6. Attach a fish tape or fibreglass rod to the end of the cable and feed it back up through the lower hole and out the upper hole to pull the rest of the cable through the wall. Leave about 6 to 8 inches of slack at each end.
  7. Remove wall plates and patch holes with drywall compound. Let compound dry as directed, then sand smooth and paint to match wall.
  8. Connect HDMI cable ends to devices and test connections to ensure proper installation before turning circuit breaker back on.

Tips for Hiding HDMI Cables and Making Your Installation Look Professional

To achieve a professional installation, there are several tips to keep in mind when hiding HDMI cables.

Plan Your Cable Route

Before starting the installation, draw  the path you want the HDMI cable to take. Measure the total length needed and buy cable suitable for in-wall use. For the cleanest installation, plan how the cable will enter and exit the wall.

Use Cable Concealers

HDMI cables could be securely hidden between baseboards and borders using cable concealers such as cable covers, raceways, and wire channels.

These are simple to install and can be painted to match your walls. Choose concealer strips that closely match the color of your wall for the most covert installation.

Fish Tape

When running the HDMI cable through a wall, use fish tape or fibreglass rods to guide the cable.

Feed the fish tape through one of the holes, then take the end that comes out the other hole and connect your HDMI cable.

Then, taking the cable with it, pull the fish tape back through. This makes it easier to move the cable through the wall base.

Label Cables

Before pulling the HDMI wire through the wall, label each end with where it goes. This ensures that the helpful devices are connected and avoids confusion if you need to access the cords in the future for troubleshooting.

Seal Holes

Once the HDMI cable installation is complete, use silicone glue or drywall glue to repair any holes in the wall.

Apply in small layers, allowing each to dry between, until the hole is completely covered. For a professional finish, smooth out the area, so it combines in with the wall area.

Test the Connection

After sealing the holes, connect the HDMI cable to your devices and test that the signal is working properly.

Check that the image and sound are clear before closing up the wall. This allows you to address any issues immediately and avoid having to reopen the wall.

Frequently Asked Questions

Certainly, here’s some queries people usually have:

Q. What is an in-wall HDMI Cable?

A. An in-wall HDMI cable is a type of HDMI cable that is specifically designed to be installed inside walls. It has a fire-resistant jacket and is rated for in-wall use.

Q. What Kind of HDMI Cable Should I Use?

A. When running an HDMI cable through the wall, it is important to use a cable that is rated for in-wall use. Look for a cable with the CL2 or CL3 rating. These cables have a fire-resistant jacket and are safe to install inside walls.

Q. What Tools do I Need to Run an HDMI Cable Through the Wall?

A.To run an HDMI cable through the wall, you will need a drill, a hole saw, a fish tape, and electrical tape. You may also want to use a conduit to protect the cable.

Q. What if I have Trouble Running the HDMI Cable Through the Wall?

A. If you have trouble running the HDMI cable through the wall, you may want to consult with a professional electrician or installer.

They will be able to help you determine the best way to run the cable and avoid any potential problems.


As you are aware, how to run HDMI cable through a wall is a difficult but possible method for many people.

You’ll be enjoying your new cable setup in moments if you get ready before the time, get the right tools and materials, and follow the correct safety steps.

While the work present may appear hard, the final result of less mess and a better entertainment experience will make it all worth.

With a little patience and determination, you’ll learn an essential new skill and have your devices connected in a professional, seamless manner.

Slowly, double-check your work, and you’ll soon be able to sit back, relax, and enjoy your favorite shows without having a problem with twisted connections.