Hardin County, TX Insulation Payback
Is attic insulation worth it in Hardin County, TX?
Hardin County, Texas is zone 2 under DOE's climate map (Hot-Humid), which means long, muggy summers and mild winters, where cooling dominates the energy bill. An uninsulated attic there should be built up to R-49. Going from R-2 to the recommended R-49 costs roughly $2,820 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 3.2 years at an estimated $871/year saved. That is a solid payback as home upgrades go.
Where the savings come from
Heating accounts for about $437/year of that and cooling about $434/year — Hardin County needs both. Nationally, Hardin County ranks in the 8th percentile for insulation savings potential. Compared only against its own climate zone, Hardin County places 82nd out of 233. Against Texas's own average of $1,035/year, Hardin County runs 16% below that.
Hardin County's actual weather, not a national average
The heating and cooling degree days behind this estimate — 1,646 HDD and 2,722 CDD (base 65°F, 1991-2020 normals) — come from LUMBERTON, TX US, the nearest NOAA station with published normals, 13.9 miles from Hardin County's center. That combined heating-and-cooling load ranks Hardin County 2911th nationally by total degree days — the 8th percentile. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
If the attic isn't bare
A shallower starting point changes the math: with R-11 already down, only the gap to R-38 needs filling, at roughly $1,620 for an estimated $117/year saved (~13.8-year payback). Whether that is worth it depends on how long you plan to stay.
Quotes and materials for this job
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $2,820 figure above as a planning number for Hardin County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Hardin County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Hardin County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.