Gypsum Underlayment for Commercial & Residential Projects

Fire-Rated. Sound-Control.

ATR installs gypsum underlayment systems for a wide range of projects — from large-scale commercial developments to multi-family housing and residential remodels. Our team is experienced in pumping and finishing high-performance gypsum-based materials that create a smooth surface ready for tile, vinyl, hardwood, or carpet.

Whether you’re building a high-rise apartment complex, renovating a hotel, or preparing a single-family home for new flooring, our gypsum underlayment services are fast, clean, and code-compliant.

Key Benefits of Gypsum Underlayment:

Smooth finish for any flooring type
Enhanced fire resistance for multi-unit structures
Excellent sound control (STC/IIC ratings)
Fast-drying with minimal jobsite disruption
Compatible with radiant heat systems
Pumpable for speed and efficiency on large projects

Our Process: Gypsum Underlayment Installation

We begin with a site evaluation and slab preparation, carefully assessing substrate conditions to ensure compatibility with the gypsum system. Once evaluated, we mechanically clean and prime the surface to ensure a strong, lasting bond.

The gypsum underlayment is pumped to the precise depth required and expertly finished to create a flat, even surface that’s ready for flooring.

After the pour, the material enters the drying and curing phase. Most floors are walkable within a few hours and fully ready for finished flooring installation within 1 to 3 days, depending on the type of materials, depth, and environmental conditions such as temperature and humidity.

Trusted Materials from Industry Leaders:

We install systems from top manufacturers like USG Levelrock®, ensuring code compliance, warranty support, and compatibility with a wide range of floor coverings.