Lightweight Concrete For Floors, Engineered Fill, And Roof Decks

Serving The St. Louis Region Since 1953

About Elastizell of St. Louis

Serving General Contractors and Building Owners Since 1953

 Elastizell of St Louis specializes in lightweight cellular concrete floor underlayments, lightweight insulating concrete roof decks and engineered fill. We’ve been in business for over 53 years. The average tenure of our workforce is more than 20 years. We provide the utmost quality, service and customer satisfaction.

We manufacture and supply low-density concrete mixes that enable our construction and engineering customers to produce and install high quality, lightweight cellular concrete for a full range of applications.

We can produce low-density concrete at a controlled density that meet desired strengths based on your specific project requirements. Best of all, our mixes are not affected by long pumping distances or extended mixing.

 The many benefits of Elastizell Low-Density Concrete (LDC) include: 

  • Acoustic properties that ensure sound is absorbed, not reflected so it’s a much better for soundproofing than dense weight concrete or brick walls.
  • Reduced weight reduces transport and handling costs
  • Choose from a range of possible densities and strengths 
  • Cost advantages compared with dense weight concrete 
  • Quicker turnaround in the manufacturing process, plus fast construction speed compared with conventional construction methods
  • Ongoing savings on power/energy costs because of its thermal insulation qualities
  • Compressive strength can be varied according to requirements
  • Low water absorption because of its closed cellular structure

Applications include: Abandonment Fills, Acoustic Insulation, Annular Space Grouting, Building Acoustics, Cellular Foam Concrete, Curved Roofs, Filling Voids, Flat Roofs, Floor Leveling, Load-Reducing Backfill, Low-Density Concrete, Insulation, Open Cut Backfill, Prestressed Concrete Caissons, Protection of Timber Piles, Roof Decks Thermal Insulation, Soundproofing, Tunnel Backfill, Water Retention

Contact us today for a quote for your project – 636-225-4311  | | 


Experience, knowledge, and quality you can trust since 1953


Floor Toppings and Underlayments

We provide and install a wide range of gypsum, portland and hybrid cementitious toppings.  Let our leading  experts aid you in selecting the right product for your specific needs.


Engineered Fill

Our Lightweight Cellular Concrete is customized to different densities and strengths, batched on site  and pumped into place.  It is lightweight, flows easily into all spaces, requires no compaction, easily excavated and competitively priced.  Let our technical experts help you find a solution to your needs utilizing this unique product.


Roof Decks

Our Low Density Insulating Concrete Roof Decks have distinct advantages over other options  including improved life cycle costs, increased durability,  wind uplift resistance,  permanent R value,  positive drainage and many more.  Please let our experienced staff  evaluate your new or existing roof deck.


Floor Leveling

We provide many unique and cost effective solutions to any floor leveling project no matter how difficult.   Let our extensive knowledge help you with your challenge.



Geofoam is an ideal solution for projects with specific  weight limitations and compliments our Lightweight Cellular Concrete applications.  We are well experienced in Geofoam installation and have successfully completed many projects  across the Midwest.

Certified Woman Owned Business Enterprise

Elastizell is a Certified WBE by the State of Missouri Office of Administration and St. Louis Lambert International Airport


Jane Megown, President