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Experience you can depend on.

Founded in 2006, Four Walls, Inc. is an energy-efficiency consulting firm based in Portland, Oregon. We predict how buildings use energy, helping clients understand the energy and cost savings of their buildings. We serve builders, architects, engineers and real estate professionals throughout the Pacific Northwest.
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Portland Requires Home Energy Scores

Do you have your team in place?

Similar to the EPA’s fuel economy ratings for cars, the Home Energy Score estimates a home’s energy costs. Since Jan. 1, 2018, Home Energy Scores have been required for most single-family homes for sale in Portland, Oregon.

If you’re a homeowner or realtor needing a Home Energy Score, count on us for:

  • Accurate, reliable service.
  • Easy scheduling and payments.
  • Rapid turnaround for appointments and assessment reports.

We’re proud to work with some of the region’s finest builders and real estate professionals.

Schedule a Home Assessment





Your Energy Efficiency Partner

Four Walls, Inc. has more than 45 years of experience working with residential and commercial builders, architects, developers, real estate professionals and engineers throughout the Pacific Northwest. We have completed thousands of energy assessments for residential, commercial and multi-family buildings in the Portland-Vancouver Metro region. Our reputation for delivering quality service helped us earn Energy Star Partner of the Year in 2016 and 2017.

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