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What is an Energy Recovery Ventilator (ERV)?

An ERV is a ventilation system that exchanges stale indoor air with fresh outdoor air while transferring heat and moisture to improve energy efficiency and comfort.

What are the benefits of an ERV?

  • Improved indoor air quality

  • Balanced humidity control

  • Reduced energy costs by pre-conditioning incoming air

  • Lower risk of mold and allergens

Do you need an ERV in your home?

Consider an ERV if your home has:

  • Tight construction with minimal natural ventilation

  • Persistent indoor odors or stale air

  • High humidity in summer or dryness in winter

Can an ERV replace my kitchen or bathroom exhaust fan?

No, ERVs are designed for whole-home ventilation. Exhaust fans are still necessary for high-moisture areas like bathrooms and kitchens.

Is an ERV energy-efficient?

Yes, ERVs reduce the load on your HVAC system by pre-conditioning incoming air, making them a cost-effective solution in the long run.

What size ERV do I need for my home?

Sizing depends on your home's square footage and number of occupants. A professional assessment can help determine the ideal unit for your space.

Are ERVs noisy?

Most modern ERVs are designed for quiet operation, especially when properly installed and maintained.

Learn More About Energy Efficiency.

Case Studies

Testimonials

  • "We have REALLY noticed changes in the house! It’s amazing. It feels so much more comfortable… I couldn’t be more pleased."

    — Larissa, Blacksburg

  • "My husband is exceptionally pleased with the quality of the work and materials – and he is particular about these things. The guys on the crew have been neat and considerate as they go about their tasks. We couldn’t feel better about taking on this project, and especially about having chosen your firm as our contractor. Thanks again."

    — Carol & Dave

  • "The audit was fascinating and the report more thorough than I had imagined. We learned a lot about a house we’ve been in for 20 years and look forward to getting some potential problems taken care of."

    — Dave, Blacksburg

  • "Words seem inadequate to express my sincere gratitude for all you have done to improve my health and home. Your work over the last weeks has positioned me for long-awaited healing and enhanced health."

    — Allison, Blacksburg

  • "You all did a marvelous job. I wasn’t sure what to expect as to what the audit would show. I didn’t feel pressured into doing any of it. Thanks again. And I have already told friends about you."

    — Martha, Christiansburg

  • "Our use of electricity is down a great deal, it’s more comfortable, it’s quieter and more even in terms of temperature."

    — Bill, Blacksburg

  • "Thank you, Chris, for all the hard work and helping make our home warm and more environmentally friendly!"

    — Joseph & Ari, Blacksburg

  • "We are very pleased with the energy efficiency work we had done at our house. We’ve noticed a huge difference in our comfort levels. I’ve noticed that the interior temperature stays very constant even during very cold/hot days."

    — John, Blacksburg

  • "Thanks for following up and checking in! We’ve been very happy with the work, especially seeing that it got tested pretty well over the weekend! That area stayed pretty consistent with the rest of the flooring, so they did a great job! We did learn that the kitchen range’s vent must be missing the backdraft damper, so that’ll be something to work on soon. Beyond that, they were very open to letting me watch and check in. I asked questions every so often and both guys were great with answering them. So, I’d definitely recommend friends to invite them over and let them work on their home. Great work!"

    — Michael

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