Seven Oaks, SC Climate Specs + Top-Rated Window Installers
ENERGY STAR groups Lexington County into its South-Central zone, the U-factor and SHGC target worth checking against any quote you get in Seven Oaks. Below that spec discussion sit 8 installers, their order set by Google rating, since Seven Oaks is outside this site's window license file. A high rating is worth a look, not a finished decision.
Google Maps ratings checked · How we rank
3AIECC climate zone · ENERGY STAR South-Central zone
Seven Oaks's climate zone, in plain terms
Seven Oaks falls in IECC climate zone 3A, and ENERGY STAR separately groups Lexington County into its South-Central zone for window certification.
Those two numbers, not the brand on the box, set the U-factor and SHGC worth checking on any quote you get in Seven Oaks.
A Columbia, SC contractor who can't name either one on request is worth a second question before you sign.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 6.9 mi away.
What FEMA's risk data says about Seven Oaks
FEMA scores Lexington County's winter-weather risk as Relatively Moderate and its flood risk as Relatively Moderate.
Winter risk in Seven Oaks weighs on U-factor and condensation resistance; flood risk weighs more on sill height and drainage detailing than on the glass package.
Treat these as two separate conversations with a Seven Oaks contractor, not one.
- Hurricane
- Relatively Moderate
- Strong wind
- Relatively High
- Winter weather
- Relatively Moderate
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Seven Oaks window bids come in
- How to Read an NFRC Window Label Four numbers on one sticker decide most of a window's real-world performance. Here's what each one means.
- ENERGY STAR Window Criteria by Climate Zone ENERGY STAR splits the country into four zones, each with its own numbers. Here they are, and why the Northern zone works backward from the other three.
- Impact Windows vs. Shutters in Florida's Hurricane Zones Florida gives homeowners two paths to a protected opening. Here's how each one is tested, and where the HVHZ raises the bar further.
Seven Oaks's top-rated window installers, by Google
The order below weighs a Google rating against its review count, the same way this site weighs a U-factor against a brochure claim: on the number, not the name. Treat it as a rating, never as proof of a license, bond or HVHZ approval.
- Window World of the MidlandsGoogle reviews
- Champion Replacement Windows of ColumbiaGoogle reviews
- Southern Industries Home ImprovementsGoogle reviews
- Taylors Window & Screen IncGoogle reviews
- West Columbia Window Replacement & DoorsGoogle reviews
- McKnight & Son's Glass Co LLCGoogle reviews
- Pella Windows and Doors Showroom of Irmo, SCGoogle reviews
- Palmetto State GlassGoogle reviews