Insulation under cold floors, over crawl spaces, garages and cantilevers, so the floors above feel warm underfoot.
A cold floor is one of the most noticeable comfort problems in a home. Floors over a vented crawl space, a garage or a cantilevered bump-out lose heat in winter, and the floor surface gets cold even when the room is warm.
We insulate between the joists with batts held in place by supports, with blown-in insulation behind netting or with foam applied to the underside of the subfloor. Each method needs its own details to keep the insulation tight to the floor and protected from moisture.
Floor insulation must touch the underside of the subfloor to work, because a gap lets air circulate behind it. We use supports, netting or spray foam to keep it tight.
Floors over a vented crawl space need an air barrier on the underside and careful moisture control. We often pair floor insulation with a vapor barrier on the ground.
Rooms over a garage and overhanging bump-outs are classic cold spots. Air sealing plus a dense insulation layer solves most of the problem.
Floor insulation in a damp crawl space can hold moisture or invite pests. We address the humidity first or choose a material that handles it well.
Drag the handle to compare.
BeforeAfterSupports keep contact with the floor.
Matched to access and moisture.
Stops wind washing under the floor.
Crawl space humidity addressed.
Cold rooms made comfortable.
A noticeable difference underfoot.
Every topic has its own page with what to expect and how we approach it.
Project situationCrawl Space HomesIn our humid climate, the crawl space shapes the comfort of your floors and the air in your…Learn more 
Project situationHot and Cold RoomsOne room is always too warm and another is always too cold. Here is why it happens and…Learn more 
Material guideFiberglassThe most common insulation, in batts and loose-fill. Here is how it performs, where it works well and…Learn more Enter the wall or floor area and the stud spacing to see how many batts or rolls to plan for, with an allowance for waste.
You tell us what is going on, which rooms bother you and what you hope to change, and we set a time that fits your day.
We walk the attic, walls, crawl space and equipment, measure depths and use thermal imaging when it helps.
We protect the house, seal air leaks, place baffles and fix small problems so the insulation can do its job.
Loose-fill, batts, foam or board goes in to the planned depth, with clean edges and clear markers.
We measure the result, take photos and test air leakage when the scope includes it.
We walk the finished work with you, answer questions and leave the site clean.
Cold air under the floor and gaps in the insulation above it are the usual causes. Air sealing and tight insulation fix most cases.
It depends on whether the crawl space is vented or closed. We explain both approaches and recommend one for your house.
It can if the space is damp and open. A closed crawl space or a pest-resistant material reduces the risk.
Yes. We use dense insulation and an air barrier to keep the room above comfortable.
Yes. We work from below through the crawl space or garage.
Crawl Space InsulationInsulation on the walls or under the floor, chosen for your crawl space so the house above stays…Explore 
Crawl Space EncapsulationA sealed, dry, conditioned crawl space with a heavy vapor barrier, so humidity, mold and cold floors stop…Explore 
Garage InsulationWalls, ceilings and doors insulated so your garage is easier to use in every season, and the rooms…Explore 
Rim Joist InsulationThe leaky band around the top of your foundation, sealed and insulated so drafts and cold floors stop…Explore Tell us about the project and we will call you back to talk it through.
Or call (615) 357-7797 to talk now.
