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Crawl Space Insulation

Make your home more comfortable and less expensive to heat and cool with crawl space insulation from Dr. Energy Saver

See how Dr. Energy Saver air seals and insulates your crawl space to improve your home energy performance.

Most homeowners tend to avoid the crawl space, and they are often unaware of the problems that may be occuring in there. Crawl spaces are a major problem area in a home's building envelope, as air leakage often leads to energy loss, uncomfortably cold floors, and other problems.

Dr. Energy Saver specializes in insulating and sealing crawl spaces to create a clean, efficient space that will make your home more comfortable. If you have issues with cold floors above the crawl space or rising energy costs, contact us today to get a consultation and estimate!

The problem with traditional insulation in crawl spaces

fiberglass insulation

Fiberglass batts installed between joists in a crawl space absorb moisture, lose R-value, and often fall out of place, as shown above.

Unfortunately, far too many crawl spaces have the wrong type of insulation, if they have an insulation at all. In either case, this error causes a house to be uncomfortably cold or hot at different times of the year, and more expensive to heat and cool. A poorly insulated crawl space is also likely to be excessively damp, encouraging the growth of mold and wood rot.

The old-fashioned way to insulate a crawl space was to install fiberglass batts between the overhead joists in the crawl space. This is no longer recommended for several reasons.

In a crawl space, fiberglass insulation tends to absorb moisture, which causes it to lose R-value and fall out of place, rendering it totally ineffective. Damp fiberglass is also a breeding ground for mold and pests which can cause wood rot and threaten the stability fo your crawl space.

How we solve crawl space insulation problems

If you have high heating and cooling bills, cold floors above the crawl space, or uncomfortable rooms in the house, Dr. Energy Saver can help. Here are our solutions for crawl space efficiency.


Installed against foundation walls, rigid foam insulation won't lose R-value, fall out of place or be damaged by moisture.

Rigid foam insulation

To get the results you want, you need a type of insulation that can perform well in crawl space conditions. Unlike fiberglass insulation, rigid foam insulation won't absorb moisture, lose R-value or encourage mold growth. It won't compress or fall out of place either, giving you lasting protection.

In crawl spaces (and basements, too), rigid foam insulation is usually installed against the foundation wall. By changing the location of the insulation, the crawl space can be brought inside the building envelope, which improves overall home energy performance. This ensures that rooms above the crawl space are more comfortable and you aren't wasting energy.


crawl space floor insulation

Floor insulation with drainage matting helps seal your entire crawl space into your building envelope.

Floor insulation

Insulating crawl space walls will always take precedence over insulating the floor, but floor insulation can be a valuable improvement for several reasons. If you experience signficant heat loss, TerraBlock™ is a crucial addition because it eliminates a major source of energy loss.

If you have a dirt floor crawl space, our TerraBlock™ insulation can be installed with a drainage liner to ensure you don't have moisture issues. TerraBlock™ is also ideal for uneven floors, as it provides a durable finished surface that can be used for storage.


crawl space encapsulation

Encapsulating a crawl space provides the complete air sealing you need to ensure maximum efficiency.

Crawl space sealing

Many crawl spaces are vented to the outside, which creates several huge problems. First this allows outside air to enter, meaning your HVAC system has to work harder to heat and cool your home. Second, this air leads to excess moisture, which will inevitably cause mold growth, pest problems, and insulation damage.

At Dr. Energy Saver, we seal the crawl space off from the outside after it's fully insulated. This maximizes the effectiveness of your insulation, helping you save money and making your home as comfortable as possible. It also eliminates the risk of mold growth, wood rot, and other problems caused by excess moisture.


Dr. Energy Saver provides expert installation of crawl space insulation

You don't have to put up with cold floors, uncomfortable rooms, and high utility costs caused by poor crawl space insulation. Your local Dr. Energy Saver dealer will carefully evaluate your home and recommend the best solutions for your needs. We install quality insulation that is proven to make homes more comfortable and efficient. Call today for an estimate!

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Nick Nason completed an insulation evaluation and upgrade at our condo last winter. As a result of his excellent work our heating costs so far this winter are 50% of what they were last winter at this time, despite much colder conditions. In addition to the financial savings the level of comfort has improved tremendously.
- Sergio in Kennebunk, ME
Rich and Eric were both caring and hard working individuals. I would recommend them to anyone. They treated me with respect and treated my house like it was their own.
- Frank in Connecticut
I chose Dr. Energy Saver over the other companies because I knew they'd really save me money.
- Edward in Edwardsville, IL
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