
Jackson Insulation serves Franklin, TN homeowners with spray foam insulation, attic upgrades, crawl space encapsulation, and whole-home insulation - licensed and permitted work with written estimates on every project.
We have been serving Franklin and Williamson County since 2023 and respond to every inquiry within 1 business day.

Franklin homes - whether a 1920s brick foursquare near the historic downtown or a 2008 build in Westhaven - share a common problem: air leakage that insulation alone cannot solve. Spray foam insulation addresses both the thermal barrier and the air infiltration in a single application, making it the most complete upgrade available for Franklin homeowners who want lasting results without two separate visits.
Franklin's newer subdivisions - Westhaven, Berry Farms, Fieldstone Farms - have homes that are now 15 to 25 years old. Attic insulation installed at the time of construction was code-compliant then, but falls short of the R-49 to R-60 performance level that today's energy costs and Tennessee's climate zone actually call for.
Williamson County's clay-heavy soil shifts with every wet and dry season, and that movement sends moisture into crawl spaces throughout Franklin. Insulating and encapsulating the crawl space stops that moisture from degrading floor joists, subfloor, and the insulation above the ground.
Franklin homes near the historic downtown core - many built before 1950 - were constructed without modern air sealing or insulation standards. A whole-home insulation upgrade addresses the attic, walls, crawl space, and rim joists together, rather than patching one area at a time.
Both Franklin's older downtown homes and its newer planned communities have meaningful air leakage that insulation alone cannot fix. Sealing gaps around recessed lights, top plates, and HVAC penetrations before new insulation goes in is the difference between a project that delivers real comfort and one that underwhelms.
Franklin's 50-plus inches of annual rainfall - much of it falling in heavy spring bursts - means crawl spaces without vapor control are consistently at risk for moisture damage. A properly installed vapor barrier paired with encapsulation keeps ground moisture out of the floor system year-round.
Franklin is the county seat of Williamson County, one of the wealthiest counties in the country, and the median home value here is well above $600,000. Homeowners in this market invest in their properties and expect work done correctly the first time. That expectation is reasonable - and it matters when it comes to insulation, because poor installation in a high-value home creates problems that show up years later in resale inspections, energy audits, and moisture damage to expensive finishes. The clay-heavy soil throughout Williamson County is a well-documented factor: it expands when wet and shrinks during dry summer spells, and that seasonal movement puts ongoing stress on crawl space walls, concrete slabs, and anything built close to the ground.
Franklin's climate mirrors the rest of Middle Tennessee - hot, humid summers with average highs in the low 90s, winter freeze-thaw cycles from December through February, and about 50 inches of rain per year. Those 50 inches do not fall evenly: spring storms drop heavy rain in short bursts that saturate soil and send moisture into crawl spaces and basements throughout the county. For a home with a crawl space foundation - which describes a large portion of Franklin's older housing stock near downtown - that means moisture intrusion is not an occasional concern. It is a seasonal reality that a properly encapsulated crawl space handles permanently rather than requiring repeated attention.
Jackson Insulation has worked in Franklin since 2023, and the team here is familiar with the two distinct housing populations that define this market. The homes near Franklin's historic core - the blocks around Main Street and the neighborhoods backing up to the Carter House and Carnton sites - are predominantly older construction, many predating 1950, with original brick exteriors and crawl space foundations that have absorbed decades of Williamson County's wet-spring, dry-summer cycle. These properties require a different approach than the newer planned communities. Spray foam and encapsulation work in an older home with original framing is hands-on in ways a standard subdivision job is not.
The newer subdivisions - Westhaven, Berry Farms, Sullivan Farms, and Fieldstone Farms - are now 15 to 25 years old, and the insulation installed during construction was code-minimum for that era, not for today's energy costs. Homeowners in these communities who have never had an insulation assessment are often surprised to find their attics performing well below current recommendations. The City of Franklin building department handles permits for residential projects, and we coordinate that process when permits are required so homeowners are not navigating it alone.
We also serve homeowners throughout the surrounding area. If you are in Brentwood, we cover that market with the same crew and standards - and the high-value housing stock there shares many of the same insulation and moisture challenges as Franklin.
We respond within 1 business day. A brief conversation about your home, its age, and what you have been noticing helps us show up to the estimate with the right information rather than starting from scratch.
We walk the attic, crawl space, or any area you want assessed and tell you exactly what we find. You receive a written estimate before any work begins, and the price does not change without your approval.
When a permit is required through the City of Franklin, we manage the application and coordinate any required inspection. You do not have to track down forms or follow up with the building department.
Most Franklin jobs are finished in a single day. We clean the work area before leaving and provide documentation of what was installed - which matters for high-value homes where a record of the work may be relevant to insurance, resale, or future renovations.
We serve all of Franklin and Williamson County. Written estimate, no obligation, response within 1 business day.
(731) 891-0854Franklin is a city of more than 85,000 people in Williamson County, about 20 miles south of Nashville on Interstate 65. It is best known for its well-preserved historic downtown, which includes the Carter House and Carnton - two of the most significant Civil War sites in Tennessee - along with local shops, restaurants, and 19th-century buildings listed on the National Register of Historic Places. The neighborhoods surrounding downtown include some of the oldest homes in the county, with original brick construction and the kind of craftsmanship that requires thoughtful, careful work when upgrades are needed. Franklin's character as an owner-occupied, long-term community is reflected in how homeowners here approach maintenance: they want it done correctly, not cheaply. Residents in nearby Smyrna face similar Middle Tennessee climate challenges and are also part of the market we serve.
Beyond the historic core, Franklin has expanded dramatically through planned communities and new development. Westhaven, one of the most recognized neighborhood names in the city, is built around a town center and features homes that now range from 10 to 20 years old. Berry Farms, Sullivan Farms, and Fieldstone Farms add thousands more homes on the south and west sides of town. Franklin is also the home of major employers including Nissan North America's U.S. headquarters and Community Health Systems, which has supported a stable, well-employed homeowner base that invests in long-term property improvements. Whether your home is steps from Main Street or in one of the newer subdivisions, the clay soil and Middle Tennessee climate affect every property here in similar ways.
High-performance spray foam that seals and insulates in one application.
Learn moreReduce heat loss and lower energy bills with professional attic insulation.
Learn moreLoose-fill insulation blown evenly into attics, walls, and crawl spaces.
Learn moreInsulate and condition crawl spaces to prevent moisture and heat loss.
Learn moreImprove comfort and efficiency with insulation in exterior and interior walls.
Learn moreDense, moisture-resistant foam with the highest R-value per inch.
Learn moreFlexible, breathable foam ideal for interior walls and sound control.
Learn moreHeavy-duty vapor barriers that block ground moisture from entering your home.
Learn moreProfessional installation of vapor barriers in crawl spaces and basements.
Learn moreCommercial-grade insulation for offices, warehouses, and retail spaces.
Learn moreCall us today or submit a request online. We respond within 1 business day and complete most Franklin insulation jobs in a single day.