ThermaSphere | Save Energy, Improve Comfort

— Northeast Indiana — Insulation Supply and Install —

Start Saving

Money.

ThermaSphere installs cellulose and spray foam insulation across northeast Indiana.

SEE OUR PRICING

GET A FREE ESTIMATE

‍R-60

Max attic rating with cellulose

‍30%

Average energy bill reduction

‍1-2

Day installs for most residential jobs

‍Testing

Building science enabled. Our work is tested to ensure a proper install.

— Pricing —

Your exact price depends on square footage, project type, and access.

$1.25

Per sq ft installed 14” (R-46)

Blown-in cellulose

Most common residential install. Attics up to 1,500 sq ft typically run $1800-2100 installed.

$150

Per building tested

Blower door testing

A proper test involves a standard air tightness test as well as a non-toxic smoke inspection. A standard test takes roughly 1.5 hours to complete.

$2.25

Per sq ft - closed cell foam

Closed cell foam install

Closed cell at 1” starts around $1.60 sq ft. Open cell at 5.5” runs $1.95. Rim joists quoted as a flat rate

Want a professional assessment of your project?

We do free estimates — usually by phone in under 10 minutes.

CALL OR TEXT US

— What We Do —

Testing

We offer blower door tests to determine if your house needs to be reinsulated. All houses that we insulate undergo air tightness testing.

SEE PRICING

Cellulose

We blow it in ourselves. Attics, walls, crawlspaces. Quoted by the job, not the hour. No surprise invoices.

HOW IT WORKS

Open and closed cell, installed through our trusted partner Hickory Lane Insulation. Tight seals for basements, rim joists, and new builds.

Spray Foam

FOAM VS CELLULOSE

— Side By Side —

Cellulose vs spray foam
which one is right for you?

Cellulose (our specialty)

Open cell foam

Closed cell foam

R value per inch

R-3.5

R-3.8

R-6.5

Installed cost

$$$

Air sealing

Good with dense-pack

Excellent

Best

Eco friendly

Yes — recycled content

Partially

Sound deadening

Best

Excellent

Poor

Best for

Attics and walls

Open cavities

Rim joists, exterior walls

— Common questions —

Can cellulose cause mold? ‍ ‍

Short answer: no, if it's installed right. Cellulose is borate-treated to resist mold and pests. The real risk is moisture intrusion, we flag that in every estimate.

What are the downsides of spray foam?‍ ‍

Cost is the biggest one, 3–5x cellulose. It also off-gasses during cure (24–48 hrs), and removal later is a pain. Great product, just not always the right call.

What is building science? ‍ ‍

Building science is the study of how a home works as a system; how heat moves, air leaks, and moisture builds up. When those three are out of balance you get high energy bills, cold spots, and comfort problems no amount of insulation can fix on its own..

Where are air leaks usually? ‍

Most air leaks aren't where you'd expect. The biggest culprits are attic hatches, recessed lights, plumbing and wiring penetrations, and the band joist where your floor meets the foundation.

How do I know if my insulation needs replacing? ‍ ‍

Drafts near outlets, high winter heating bills, or insulation that's visibly settled below joist tops. If your attic is under R-30, you're losing money every month.

What R-value do I need in Indiana? ‍ ‍

DOE recommends R-45 to R-60 for Indiana attics. Most existing homes sit at R-20 to R-30 that gap is costing you real money every winter.

• Licensed & insured in Indiana

• Free estimates

• No mystery pricing

• Northeast Indiana Locally Owned

Office

6324 East Indiana 124

Bluffton, Indiana 46714

Hours

Monday — Friday
7am — 5:30pm

Saturday
8am — 5:30pm