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Certified Energy Testing & Code Compliance Experts for Austin Multifamily Builders

Austin is growing fast—and so are the demands on your projects. Lone Star Energy Efficiency helps you meet tight deadlines and strict energy codes with testing and documentation you can trust. From large apartment communities to mixed-use developments, we make compliance simple.

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Experience that Keeps Your Project Moving

Managing multifamily construction in Austin means juggling timelines, contractors, and city regulations. Our team has supported developments across Central Texas, delivering accurate testing and inspections and quick results that keep your build on track.

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Areas We Serve in Austin

We proudly serve residential projects throughout:

Central Austin
  • Bryker Woods
  • Caswell Heights
  • Downtown Austin
  • Eastwoods
  • Hancock
  • Heritage
  • Hyde Park (Historic District)
  • Judges’ Hill
  • Lower Waller Creek
  • North University
  • Oakmont Heights
  • Old Enfield
  • Old Pecan Street
  • Old West Austin
  • Original Austin
  • Original West University
  • Pemberton Heights
  • Rosedale
  • Ridgelea
  • Ridgetop
  • Shoal Crest
  • Shadow Lawn Historic District
  • West Downtown
  • Allandale
  • Balcones Woods
  • Barrington Oaks
  • Battle Bend Springs
  • Brentwood
  • Crestview
  • Estates of Brentwood
  • Hancock
  • Highland
  • North Burnet
  • North Campus
  • North Lamar
  • North Loop
  • North Shoal Creek
  • Saint John
  • Wooten
  • Windsor Hills
  • Windsor Park
  • Springdale Heights
  • Harris Branch
  • Canyon Creek
  • Great Hills / Arboretum
  • Northwest Hills
  • Copperfield
  • Wells Branch
  • Scofield Farms
  • Avery Ranch
  • Robinson Ranch
  • Jollyville

Services for Multifamily Developments

Residential Blower Door Testing

Identify and measure air leaks to meet IECC standards.

Duct Leakage Testing

Verify that your ductwork is sealed properly to avoid energy loss.

Insulation Inspections

Ensures that all installed insulation meets code requirements and is properly placed for energy efficiency and performance before drywall is installed.

Mechanical Ventilation

Verifies that a building’s ventilation system is delivering the correct amount of fresh air.

Energy Modeling

REScheck and Ekotrope modeling to confirm compliance before you build.

HERS Ratings

Measure your home’s efficiency and unlock potential incentives.

Let’s Plan Your Next Project Together

Have questions about your project? Connect with our local team today—we’re here to help you stay ahead of deadlines and pass inspections the first time.

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What Our Clients Say

“At Williams-Hirsch Custom Builders, we have been using Lone Star Energy Efficiency to do our energy ratings, testing and inspections for a while now. Brittany and Clay are very informative and helpful. They are also local and are very familiar with the local and surrounding municipal requirements as well as what is best for our local climate conditions and most suitable practices. I would highly recommend them to anyone needing any energy services.”
Greg Hirsch
Greg HirschWilliams-Hirsch Custom Builder
"Lone Star was fantastic to work with – they are efficient, communicate effectively, solve problems on-site with other trades, and always put the customer first. In both Austin and Houston, Texas, they have been quick to price, schedule, and execute the project at hand, all while going above and beyond our expectations and needs. I would highly recommend getting in touch with Clay and Brittany at Lone Star for your next project."
Grayson Edgemont
Grayson EdgemontLIV Development
“Lone Star is awesome. They made the experience very simple and were a pleasure to work with. Please consider them for any future projects or needs your company may have with energy testing for code compliance.”
Juan Segura
Juan SeguraRoers Company
"Lone Star helped us with an IB 167 inspection. Clay came out and performed a blower door and duct leakage test for us. We received the paperwork quickly. I recommend this company 100%."
Linda Burgess
Linda Burgess
"The whole team at this company was very easy to work with. They were incredibly professional and provided very helpful information in the report after their inspection of my house."
Mary Hamman
Mary Hamman
"The City of San Antonio requires IB167 so we called Lone Star Energy Efficiency to help us out. The whole process was simple and easy."
Mark Armand
Mark Armand