ThermaSphere

— What We Do —

Three ways we can help you

Cellulose Supply

Wholesale and retail cellulose insulation bags. Best prices in northeast Indiana. Pick up or we deliver to your job site.

SEE PRICING

Cellulose Install

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

HOW IT WORKS

Spray Foam

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

FOAM VS CELLULOSE

— Honest Pricing —

We publish our rates. Most contractors won't.

We know you're going to ask. So here it is. These are real ranges. Your exact price depends on square footage, project type, and access. But you'll never get a mystery quote from us.

$1.30

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.

$11.50 - 13.00

Per bag - DIY supply

Cellulose bags

Buy as few or as many as you need. Blower rental available free with purchase of 20+ bags.

$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

— Side By Side —

Cellulose vs spray foam
which one is right for you?

Factor

R value per inch

Installed cost

Air sealing

Eco friendly

Best for

Sound deadening

Cellulose (our specialty)

R-3.5

Good with dense-pack

Yes — recycled content

Attics and walls

Best

Open cell foam

R-3.8

Excellent

Partially

Open cavities, crawlspaces

Excellent

Closed cell foam

R-6.5

$$$

Best

Rim joists, exterior walls

Poor

— Common questions —

What people actually ask us

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.

Is DIY worth it vs hiring a pro? →

For accessible attics with decent headroom, absolutely. We rent blowers free with bag purchase and walk you through the whole thing. Tight spaces or walls? Call us.

How many bags do I need? →

Depends on sq footage and target R-value. A 1,000 sq ft attic going to R-45 needs roughly 60-65 bags. We'll calculate it exactly, for free.

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

           • DIY blower rental

Office

6324 East Indiana 124

Bluffton, Indiana 46714

Hours

Monday — Friday
7am — 5:30pm

Saturday
8am — 5:30pm