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Energy-efficiency home insulation in St. Louis & nearby

You don't need a degree in thermodynamics to know that heat always spreads out to fill in where it is depleted. In the wintertime, heat moves naturally from inside to outside. During hot summer months, heat "wants" to go the opposite way, moving inside the house to make spaces uncomfortably hot.

This process will cause your home to be uncomfortable, have uneven temperatures throughout the house, and will increase your heating and cooling costs. However, installing proper insulation can help fix these home energy issues.

As a full-service insulation contractor, Woods Basement Systems, Inc. provides expert home insulation services to improve areas such as walls, crawl spaces, basements, and garages in O' Fallon, Belleville, Florissant and throughout the surrounding areas.

We Offer the Best Insulation Solutions:

  • As an ActOnEnergy® affiliate we help you save thousands on insulation upgrades
  • Award-winning SuperAttic® Insulation System
  • The right material for the right job—always!

Insulation Services

Attic Insulation

Upgrading attic insulation is usually a top priority for improving comfort & energy efficiency.

Crawl Space Insulation

Insulating & sealing the crawl space will improve home comfort and indoor air quality.

Basement Insulation

Improve comfort, energy efficiency & air quality throughout the home with this important insulation upgrade.

Free Insulation Estimates In Illinois & Missouri

We provide free evaluations and estimates for all of our home insulation services!

Wall Insulation

Upgrade under-performing wall insulation to eliminate cold winter drafts and wasted energy.


Improve the performance of your HVAC system with properly sealed and insulated ducts.

Air Sealing

Sealing leaks in a home’s building envelope can eliminate cold drafts and help insulation work more effectively.

We provide savings on energy-efficient home insulation

Woods Basement Systems, Inc. is a Registered Program Ally

Ameren Illinois customers may be eligible for instant incentives up to $5200

» Contact Us to Learn How

St. Louis County Saves

3.5% Fixed Rate Financing Available on Energy Upgrades

» Contact Us to Learn if You're Eligible

Contact us for efficient insulation in your home

If you have uncomfortable temperatures in your house, uneven heating and cooling, or rising energy costs, Woods Basement Systems, Inc. is here to help. We provide complete home insulation services, including blown-in insulation, spray foam insulation, and rigid board insulation.

Woods Basement Systems, Inc. proudly services O' Fallon, Belleville, Florissant, Decatur, Ballwin, Belleville, Champaign, St. Peters, East Saint Louis and throughout the nearby areas. If you are interested in upgrading your existing insulation or would like new insulation installed, call us today at 1-844-204-8198 for a free estimate!

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve the following areas

Our Locations:

Woods Basement Systems, Inc.
524 Vandalia Street
Collinsville, IL 62234