What R-value should attic insulation be in North Carolina?

The U.S. Department of Energy recommends R-49 for attics in North Carolina's climate zone. Homes below R-49 lose conditioned air year-round through the ceiling. Carolux installs to R-49 on every full attic job. Bringing an under-insulated attic up to R-49 is typically where homeowners feel the difference in comfort and in monthly energy bills.

What is the difference between blown-in and batt insulation?

Blown-in is loose fiberglass or cellulose blown across the attic floor, so it fills the gaps and odd corners that pre-cut pieces miss. Batt is fiberglass cut to fit between framing, hand-fitted between crawl space floor joists. Carolux uses whichever suits the space — and sometimes both in one home.

Is air sealing included with insulation installation?

Yes — Carolux includes air sealing on every full insulation install at no extra charge. Before insulation goes in, leaks around light fixtures, plumbing penetrations, and wall top plates are sealed. Skipping that step is the most common reason insulation underperforms. Air sealing is not included on small top-off jobs; Carolux will say so upfront.

Does Carolux carry insurance, and is an insulation contractor license required in NC?

Carolux carries full general liability insurance. North Carolina does not require a contractor license for residential insulation work, so no insulation crew holds one for this scope. Carolux co-owner Tony Kermis is a former NC home inspector — the person who reads your attic knows what he is looking at.

Will new insulation actually lower my energy bills?

Yes. The EPA's ENERGY STAR program estimates that air sealing plus proper insulation reduces heating and cooling costs by up to 15%. Results vary by home; they depend on your HVAC efficiency, habits, and how under-insulated your attic is now. Carolux provides an honest projection during the free energy audit. Savings vary. Find out why in the seller's fact sheet on R-values. Higher R-values mean greater insulating power.

Do I need a vapor barrier in my crawl space?

Yes, for most Charlotte-area homes. North Carolina's humid summers push moisture up through bare-dirt crawl spaces and into the subfloor above, raising energy bills and accelerating wood rot. A heavy-duty vapor barrier keeps humidity down where it belongs. Carolux installs the liner and checks drainage in the same visit.

What areas around Charlotte does Carolux serve?

Carolux serves Charlotte, Huntersville, Pineville, Matthews, Mint Hill, Concord, Harrisburg, Gastonia, Belmont, Cramerton, Lowell, Mount Holly, and Stanley, NC — plus the surrounding Piedmont. If your town isn't on the list but you're near the metro, call (704) 228-2729. There's a good chance the area is covered.

How long does insulation installation take?

Most attic insulation jobs wrap up in a single day. Crawl space work can run longer depending on size and moisture conditions found on-site. Both Carolux owners — Tony and Juan — are present from start to finish, and a walkthrough of the finished work happens before the crew leaves.

Mecklenburg County · Insulation Contractor

By Tony Kermis, former NC Home Inspector & co-owner, Carolux Insulation · Last updated June 2026

Charlotte Insulation Contractor, Free Estimate

Carolux Insulation serves Charlotte, NC — owner-operated attic blown-in insulation, crawl space fiberglass batt, and vapor barrier installation. Both owners on every job. Air sealing included on every full install at no extra charge. Free energy audit with same-day written quote. Call (704) 228-2729.

Charlotte's insulation market has no shortage of crews. What most don't offer: the owners actually doing the work, air sealing included on every full install, and a specialty contractor's price instead of a franchise overhead markup.

Insulation Services in Charlotte

Three services, every one installed by the owners.

Blown-In Attic Insulation

Fiberglass or cellulose blown to R-49 — the DOE standard for North Carolina. Air sealing is done before any material goes in, at no extra charge. Most Charlotte attics finish in a single day.

Learn more about attic insulation →

Crawl Space & Vapor Barrier

Heavy-duty vapor barrier to stop ground moisture from migrating into the floor structure above. North Carolina's humid summers make crawl space moisture a real cost driver for homes in Charlotte and throughout Mecklenburg County.

Learn more about crawl space insulation →

Fiberglass Batt Insulation

Hand-fitted batt between crawl space floor joists — no gaps, no shortcuts. Tony and Juan cut and place every piece themselves; that's what separates properly-fitted work from a hurried crew install.

Why Charlotte Homeowners Choose Carolux

Four things most insulation companies don't offer.

Owner-Operated

Tony and Juan are on the job at every Charlotte project — not a crew you've never met. You get the owners' direct contact and they pick up the phone.

Air Sealing Included

Air sealing on every full installation at no extra charge. Many contractors skip it or bill it separately. It's the highest-impact step and the one that separates a real upgrade from a temporary fix.

III

2-Year Guarantee

If anything Carolux installed isn't performing correctly within two years, the owners come back and make it right. No questions, no hassle, no fine print.

Inspector-Grade Diagnosis

Tony spent years as a North Carolina home inspector before Carolux. He reads the whole house — moisture, airflow, where your money is escaping — before recommending anything.

Common Questions: Charlotte Insulation

How much does attic insulation cost in Charlotte, NC?+

Charlotte attic blown-in insulation typically runs $1.00–$5.00+ per square foot installed across the market. Specialty owner-operated crews generally fall in the $1.25–$2.50/sqft range; large multi-service home-comfort companies with more overhead often quote $3.00–$5.00/sqft for the same R-49 install. A free energy audit gives you a firm, all-in number for your specific home.

See full Charlotte price guide →

What R-value does a Charlotte attic need?+

The U.S. Department of Energy recommends R-49 for attics in North Carolina's climate zone, which covers all of Charlotte and Mecklenburg County. Most Charlotte homes built before 2010 fall well short of R-49. The gap is where your conditioned air — and your money — quietly escapes year-round through the ceiling above.

Does Carolux serve all of Charlotte?+

Yes — Carolux works throughout Charlotte, from South End and Ballantyne to NoDa, Plaza Midwood, Steele Creek, University City, and every neighborhood in between. Both owners are present on every job, regardless of which part of the city. Call (704) 228-2729 to confirm availability for your specific address.

Does air sealing make a real difference, or is it just an upsell?+

Air sealing is not an upsell at Carolux — it's included on every full installation at no extra charge. Sealing gaps around light fixtures, plumbing penetrations, and top plates before insulation goes in is the step that makes the R-value actually perform. Skipping it is the most common reason Charlotte homeowners don't feel the difference after a re-insulation job.

Get a Free Estimate in Charlotte

Free energy audit for Charlotte homeowners. No commitment — just a clear picture of what your home needs and what it costs. An owner gets back to you within a few hours.

Call (704) 228-2729

Serving Charlotte and the surrounding Mecklenburg County communities

Carolux Insulation · Charlotte Price Guide