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Existing Homes

Improving the energy efficiency of your existing home can be a daunting task. With all of the information out there, making decisions on what will give you the biggest bang for your buck can give you quite a few sleepless nights. This is when you should call in the experts at LaGrange Consulting. We can guide you through all the salesmanship, and get right to the source of your home’s inefficiencies. Our trained professionals can inspect your home and offer expert advice based on building science principles, not the latest gadget or gizmo craze. Our recommendations are suitable for our hot humid climate, where keeping out moisture becomes a key factor in efficiency, comfort and sustainability.


Our goal is to bring your home as close to being a high performance home as possible.

The Louisiana Department of Natural Resources (DNR) has defined a high performance home as:

• Energy Efficient (less expensive to own and operate)
• Comfortable (no drafts or hot and cold spots)
• Good Indoor Air Quality (less dust, mold, etc.)
• Quiet (less outdoor noise)
• Long lasting (durable) (less moisture-induced rot)
• Better for the Environment (causes less air and water pollution)

Living in a hot, humid climate presents a number of challenges in keeping our houses comfortable, durable and cost efficient. Over the years our staff has gained experience and insight into the best energy efficiency practices particular to our region. Participating in current, hands-on energy efficiency projects and scientific research keeps us up-to-date with the most recent developments in the field. We use all of this information to help customers like you lower their utility bills while making their homes more comfortable and long-lasting.

For existing homes, check out these services that we can offer you:

• Office consult based on owner-provided blueprints
• Customized Energy Efficiency Manual
• Manual J-load (HVAC sizing)
• Manual D (HVAC design)
• Commissioning of new projects
• Energy Star Certification
• HERS score
• Foam Insulation