Teller County, CO Insulation Payback
Is attic insulation worth it in Teller County, CO?
DOE classifies Teller County as climate zone 5, cold — a real winter that drives most of the annual energy bill here. Its recommended attic R-value for bare joists is R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $2,286 a year in heating and cooling — a payback around 1.5 years. Few home upgrades pay back that quickly.
The breakdown behind the number
Heating accounts for about $2,282/year of that and cooling about $4/year — Teller County needs both. Nationally, Teller County ranks in the 93th percentile for insulation savings potential. Compared only against its own climate zone, Teller County places 4th out of 745. Against Colorado's own average of $2,043/year, Teller County runs 12% above that.
Where these numbers come from
Teller County's climate figures — 8,533 heating and 28 cooling degree days a year — are read from CRIPPLE CREEK 3NNW, CO US, 5.2 miles away, NOAA's nearest 1991-2020 normals station. That combined heating-and-cooling load ranks Teller County 272nd nationally by total degree days — the 91th percentile. Its moisture regime is classified dry, 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
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $333/year saved — roughly 6.8 years to break even. The math clears comfortably within a normal ownership horizon.
Next steps for a Teller County attic
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $3,480 as a starting estimate for a Teller County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Teller County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Teller 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.