Get matched with top carpet installation pros in Cudahy, CA

The best underlayment for carpet on concrete is a sponge rubber underlayment. This type of carpet padding is durable enough to endure wear and tear on hard concrete yet soft enough to provide comfort underfoot. It also creates insulation from sound and temperature, providing warmth despite the concrete’s cold surface.

No, it works best under synthetic carpets in high-traffic or moisture-prone areas. Avoid using moisture barrier padding under natural fiber carpets like wool, which need air circulation. The barrier can trap the moisture against natural fibers and cause problems. Also, you can skip it in low-risk areas like upstairs guest bedrooms, where the extra protection often isn't worth the added cost.

When it comes to flooring installers, licensing laws vary from state to state. Even if your state doesn’t require your flooring installer to have a license, your municipality or city might, so it’s a good idea to check with your town before getting started. Be sure to check our state licensing tool to review the local general contractor guidelines. 

Hiring an unlicensed flooring installer could lead to poor quality work, costly future expenses, and potential code violations. 

As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:

• The owner, principal, or relevant manager passed a criminal background check

• Required to have applicable state and local licenses

• Maintain an average star rating of 3.0 or better on our network, if they have at least one review

• Paying to advertise their services

• Meeting any other eligibility criteria required by Angi

Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.

In most cases, you do not need to put padding or underlayment under carpet tiles. Unlike traditional carpet, which requires a separate pad, carpet tiles are designed to be installed directly onto a firm subfloor like plywood, concrete, or tile. Many carpet tiles come with a built-in underlay and attach with peel-and-stick adhesive, double-sided carpet tape, or glue. For a more comfortable, cushioned feel, especially in residential settings, you can opt for padded carpet tiles that have a thicker underlay attached. While it's generally not recommended to install a separate pad, a compact underlayment might be used in some situations, though this typically requires professional installation. An acoustic underlay may also be considered in commercial spaces or multi-level homes where noise reduction is a priority.