Franklin sits south of Indianapolis with a mix of 1800s frame homes around the historic downtown and mid-century ranches spreading out toward the newer suburbs. Those older homes around Main Street and the courthouse district carry empty wall cavities and drafty basements that leak heat all winter, while the post-war stock sits on crawl spaces with attics that bake at 130-plus degrees in July and drop below freezing when the January wind comes off the plains.
Homeowners in Franklin (46131) call Indianapolis Spray Foam Insulation because we know exactly what an 1880s balloon-frame cottage needs to stop drafts around the rim joist and why wall injection foam works where blown-in cannot reach, and we know how to handle the tight crawl spaces and finished attics that make this part of Johnson County hard to insulate any other way.
Spray Foam Insulation in Franklin (46131)
Franklin's building stock splits the problem in half. The historic core around the courthouse holds 1800s and early 1900s wood-frame homes with clapboard and brick exteriors, empty wall cavities, and basements or shallow crawl spaces that sweat in spring and freeze in winter. The rim joists and band joists around those foundations are where heat pours out and cold air leaks in, and the walls themselves have never seen cavity insulation. Spray foam fills those gaps where traditional batts cannot reach, and it seals the air leaks that blown-in insulation leaves behind.
The ranches and split-levels built from the 1950s onward sit on crawl spaces and slabs with attics that hold compressed or missing insulation, knee walls that ice dam every winter, and ductwork routed through unconditioned space. Attic temperatures swing from 130 degrees to below zero, and humidity flips with the season. Closed cell foam stops that swing and seals the air leaks that make rooms over garages and at the end of duct runs stay cold no matter what the thermostat says.
We have been serving Franklin and the Indianapolis area since 2012, with crews who know the old frame homes and the newer construction both, and we bring a written estimate with R-value and thickness specified so you know what you are paying for.
Our services in Franklin
- Attic Spray Foam Insulation in Franklin · Open-cell foam on the roof deck turns an Indianapolis attic into conditioned…
- Closed Cell Spray Foam Insulation in Franklin · Two-pound closed-cell foam delivers R-6.5 per inch with its own vapor retarder…
- Open Cell Spray Foam Insulation in Franklin · Half-pound open-cell foam air-seals attics and walls at a friendlier price per…
- Wall & Injection Foam Insulation in Franklin · Injection foam fills closed walls through small drilled ports, no demolition.
- Crawl Space Spray Foam Insulation in Franklin · Closed-cell foam on crawl space walls and rims stops cold floors and frozen…
- Rim Joist & Band Joist Spray Foam in Franklin · Basement and crawl space rim joists leak more cold air than almost anything in…
- Garage Spray Foam Insulation in Franklin · Garage ceilings under bonus rooms and shared walls are foam-sealed against July…
- Metal Building & Barndominium Spray Foam in Franklin · Closed-cell foam stops an Indiana pole barn from sweating in spring and…
- Commercial & New Construction Spray Foam in Franklin · Warehouses; offices; churches and production builders served on schedule.
- Insulation Removal in Franklin · Old blown-in and batts vacuumed out before any new foam goes in, never buried.
- Insulation Replacement & Re-Insulation in Franklin · The full reset: old material removed; gaps air-sealed…
- Air Sealing in Franklin · Top plates, can lights, chimney chases and attic hatches leak more heated air…
How a Job Works in Franklin
We start with a free on-site assessment. We walk your attic, crawl space, or walls, measure the area, look at what is already there, check for moisture or damage that has to be fixed first, and talk through open cell versus closed cell, thickness, and what the local building code requires at your address. We leave you with a written estimate that names the R-value, the thickness per pass, the total board feet, and the price. No surprises.
The work itself depends on the job. If we are spraying an attic, we set up mechanical ventilation so the space stays breathable during cure and the smell does not travel into your living areas. If we are injecting foam into walls or sealing rim joists, we work from the basement or crawl space and often finish in a day. If insulation has to come out first, we remove it, haul it, and dispose of it before we spray anything new. We work around your schedule and your family.
Once the foam cures, we clean up, walk you through the finished work, and give you a re-entry window of 24 to 48 hours before the space is back to normal use. We leave your property clean and your home tighter and more comfortable than it was.
Attic spray foam in Franklin typically runs from $1.50 per square foot for open cell to $1.20 per board foot for closed cell, depending on thickness and the R-value you need. A 1,500 square foot attic might cost $2,250 to $3,000 in open cell, or $3,000 to $5,000 in closed cell, depending on depth and whether old insulation comes out first. Wall injection foam runs from $2 per square foot and works well in those 1800s frame homes where the walls are empty. Crawl space jobs start at $2,500 and go up with square footage and moisture conditions. Rim joist and band joist sealing starts at $650 for a typical basement perimeter. Insulation removal runs from $950 depending on the volume and what has to be hauled. The biggest cost factors are the area to cover, the R-value and thickness you specify, whether you choose open or closed cell, and what has to be removed first. Call us at (463) 285-8584 for a free estimate on your Franklin home. We will measure, calculate, and give you a real number before you decide.
✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Franklin and nearby areas.
