How to install a central vacuum system in existing home

Who usually installs central vacuum systems?

The installation of a standard central vacuum system is not as difficult as one may imagine. An average handy homeowner can install a central vacuum system during a single weekend, provided that he knows how to handle a drill and perform accurate measurements.

Necessary Tools

Before starting the installation process it is important to gather all the required tools. This will make the process of installation easy and convenient. You may need the following items:

  • Power drill
  • 2-inch hole saw
  • 2-1/2-inch hole saw
  • Phillips head and common screwdrivers
  • Tape measure
  • Hammer
  • Hacksaw
  • Wire
  • 30-foot-long rope

Installation Instructions

1. Study length between the cleaning locations

This will help to detect the right positions for wall inlet valves mounting. Remember that you should be able to reach any part of the room including corners and around furniture places.

2. Study the inlet position

The inlet valves should be fixed between the studs or under the floor, next to the electric outlets. This will provide power to the portable hose. No ducts, wiring or plumbing should interfere with the inlet mounting.

3. Choose a power unit location

This device is better to be located in a basement or garage premises. Mount it on the wall near the electrical outlet.

4. Project the tubing installation

….leading from the power unit to the inlet valves.

5. Mount the inlet valves

Drill a tine pilot hole down in the floor, just below the future inlet site. Make sure it is easy to spot and cut a 2 inch hole for the available inlet valve.

6. Drill tubing holes

For the first floor work from under the floor. Drill holes from the basement ceiling. The diameter of a tubing, intended for the dirt carrying to the power unit, should be made of 2-1/2-inch in size. The pilot hole for a second floor location should be made from the attic floor position. The diameter of this pilot hole should also be of 2-1/2-inch in size.

7. Thread tubing and wiring

Cut tubing into pieces long enough to match the power unit with all the inlet valves locations. Attach low-voltage wire to the tubing. Thread the tubing piece with a low-voltage wire into the inlet valves. The first floor valve should be threaded from the basement side and the second floor valve should be connected with the tubing from the attic side. Secure the threaded wire to the valve mounting plate. Cement a 90-degree dual elbow fitting to the back side of the valve plate.

8. Mount inlets and secure the tubing

The last step is to install the valve inlet into the wall location and secure tubing threads to the inlet elbow. This process is usually described in the manufacturer’s instruction manuals. Most of the brands provide video guidelines.

After the last step is finished you are welcome to test your central vacuum system and enjoy clean, fresh air inside the house.


How much does it cost to install central vacuum system?


The average cost of central vacuum system installation….


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