Frequently Asked Questions

HomeGuide lists $1.50 to $5.00 per square foot installed: open cell $1.50 to $3.50, closed cell $3.00 to $5.00. Many jobs have a $1,000 to $2,000 minimum. We measure and give you a written price.

Blown-in and batts cost less per square foot; HomeGuide lists blown-in at $1.00 to $2.80. Foam costs more but seals air and handles moisture, so it earns its price in crawl spaces, rim joists and under roof decks.

Usually because of bad installs: foam sprayed too thick at once, off-ratio mixes that leave an odor, or foam on a roof deck hiding a leak. Proper product choice, ventilation and a written record of what was installed avoid most of it.

Most removals are foam in the wrong place, such as on a roof deck that now needs inspection, or a bad mix. We look first and price removal in writing if it is needed.

In many humid-climate homes, closing vents, laying a heavy vapor barrier and insulating the walls keeps summer moisture out. It needs a plan for drying the space, which we explain during the visit.

Dickson Electric System partners with TVA on EnergyRight programs. TVA EnergyRight offers rebates for air sealing and home insulation installed by a Quality Contractor Network member, who files the claim. Check the QCN directory before you count on one.

If your HVAC unit and ducts are in the attic, foaming the roof deck can cut cooling losses a lot. It also makes the deck harder to inspect, so we recommend it only where it makes sense.

HomeGuide advises at least 24 hours for the sprayed area. We ventilate during and after spraying and explain the plan for your house.

It costs more per square foot, needs cure time and is hard to remove if put in the wrong place. Careful placement avoids most issues.

No. Leaks need repair first. Foam over a leak hides the damage.

HomeGuide lists $3 to $10 per square foot, $3,000 to $15,000 for most homes. A vapor barrier alone runs $1,200 to $4,000. We measure and price in writing.

Usually moisture. Humid air condenses in them, they get heavy and fall. Encapsulation and wall insulation fix the cause.

It usually helps, especially when ducts run through the crawl space, because the air around them is no longer hot and humid.

Many sealed crawl spaces need one or a small supply of conditioned air. We explain the options.

HomeGuide lists a typical job at $1,000 to $2,700, about $1,800 on average, and air sealing at $350 to $3,000.

Tennessee's code summary lists R-38 for ceilings in Zone 4. That is a sensible target.

When the HVAC system and ducts are in the attic, it often is. Otherwise, sealing and blown-in is usually the better value.

Only if it is wet, soiled, moldy or in the way of sealing.

We do. Closed-cell foam on sheds, shops and metal buildings is a regular part of our work around Dickson County.

Yes. Closed-cell foam on the steel keeps humid air off the cold metal.

HomeGuide lists closed cell at $3.00 to $5.00 per square foot installed. We measure walls and roof and price in writing.

It depends on the county and how the building is used. Check with your local building office.

HomeGuide lists $1.00 to $2.80 per square foot and $900 to $3,600 for an attic. Fixr lists $1,750 to $5,500 for about 1,500 square feet.

Both work. Cellulose slows air slightly better; fiberglass does not absorb moisture. We explain the trade-offs.

Loose fill settles slightly, so we blow to the settled depth for your target R-value.

Yes, if it is dry and clean, after sealing.

HomeAdvisor lists $1 to $2 per square foot, with typical jobs around $600 to $1,200; removal plus replacement averages about $1,852.

Usually not. In humid Middle Tennessee, encapsulating and foaming the walls lasts longer than batts between the joists.

Yes. Soiled insulation comes out so the space can be sealed and refilled.

Yes, by cutting and scraping. It costs more than removing loose fill.