At Hillcrest Homes, every modular unit is engineered to meet—and often exceed—the strict IECC (International Energy Conservation Code) requirements for superior comfort and lower utility costs. Here’s how we make your home an energy champion:

• R-21 Exterior Walls

Dense insulation in every wall cavity keeps heat inside in winter and out in summer—so your HVAC doesn’t have to work overtime.

• High-Efficiency Furnaces

Our furnaces deliver up to 95% AFUE (Annual Fuel Utilization Efficiency), meaning more of your fuel turns into cozy warmth (and less goes up the flue).

• Low U-Factor Windows

We install windows rated to meet IECC’s U-factor requirements, minimizing heat transfer and cutting drafts.

• Tight Building Envelope

Factory assembly under controlled conditions means fewer gaps and air leaks compared to site-built homes—resulting in quieter, more comfortable living year-round.

• REScheck Verified

Every home passes a REScheck evaluation, calculating the entire building envelope to certify full IECC compliance.

Why It Matters:

Lower energy bills, more consistent indoor temperatures, and a smaller carbon footprint—without sacrificing style or affordability.

Contact us to learn more!

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