Floor Underlayments

For new construction or renovation, over concrete or wood floors, ceramic tile, mastic or VCT, we have a self-leveling floor underlayment to meet your needs.

Gypsum underlayments can be applied to almost any structurally sound substrate from a featheredge to 3 inches in one pour.  Gypsum underlayments offer reliability and superior results, with compressive strengths up to 5,000psi.

    • cap uneven, rough, cracked or spalled concrete
    • can pump as high as 30 stories from ground level
    • level entire floors up to 40,000 square feet in one day
    • no shrinkage cracking
    • top precast planks in new construction
    • install over old floor coverings including vinyl asbestos tile and mastic
    • provide fire and sound control over wood frame construction
    • provide a new, workable surface in 2-4 hours after application

Portland cement underlayments can be applied to structurally sound, clean concrete substrates from a featheredge to 3 inches in one pour.  Portland cement underlayments offer a truly self-leveling application and compressive strengths up to 6,000psi. 

    • cap uneven, out of level, or spalled concrete
    • water resistant
    • applied above, on, or below grade
    • exceeds all standards set by leading floor goods manufacturers
    • level entire floors up to 40,000 square feet in one day

Radiant flooring underlayment, is formulated specifically to radiate heat and withstand fluctuating temperatures.  Poured over hot water tubes or electric heating cables, this product meets the special challenges of radiant floor heating with:

    • a thin thermal mass that enhances heating system responsiveness
    • a smooth, tough surface that accepts many floor coverings
    • no shrinkage cracking
    • can be easily applied over wood substrates
    • seals perimeter walls and keeps out base board drafts

If you are interested in our extensive flooring services, you have any questions, or you would like to request additional information, please contact us, or fill out our online inquiry form.



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Alliance Specialty Trades, Inc.
1318 Marquette Dr #8,
Romeoville, IL 60446