# Home Energy Audit & Performance Testing ## Home Performance Evaluation & Energy Assessments ### Blower Door Testing A [blower door uses a powerful fan](/blog/preventing-ice-dams-with-blower-door-testing/) that we will mount in the frame of one of your exterior doors. The purpose of the fan is to pull air out of your home, which will lower the pressure inside, allowing the outside air pressure to flow through any unsealed cracks and openings that exist in your home. Our trained specialist will walk through your home with a smoke pencil that will allow them to pinpoint your troublesome areas when conducting the energy assessment. ### FLIR Thermography Audit To Identify Air Leaks We use a FLIR Infrared Imager that will take thermographic scans of your home which measure surface temperatures by using infrared video. Using this energy efficiency audit, in conjunction with our blower door testing, will help find air leaks in your home by showing up as black streaks on the infrared imager. This technique can also help detect roof leaks because wet insulation conducts heat faster than dry insulation.   ## Energy Audit Checklist for Twin Cities & Western WIsconsin Homeowners  - If you burn wood in your home, make sure that your fire is completely out. This includes even any coals, before your specialist arrives. - Make sure that your attic, crawl space, closets and any unused rooms are easily accessible. - All air inlets in your home will need to be closed such as fireplace dampers, doors, windows etc. - Fossil fuel appliances will need to be shut down temporarily, so they don’t fire during the test. - Be sure to set aside a few hours for the test to allow the technicians to be as thorough as possible. ## Our Insulation Services Reviews: Recently, I had great service from Bryan Sydow at Lindus Construction. This company must create an environment for honesty and putting forth the best interests of their customers. After seeing a detailed video of the possible need for adding [additional insulation](https://structurem.lindusconstruction.com/insulation/) to my home, it was determined that the ROI would not be it. I would definitely contact them for possible other projects. I was very impressed with their integrity." Lorraine S. Northfield, MN April 24, 2026 "I've had two free inspections of my home. Both were very complete and done in a friendly courteous way. I am very pleased and would not hesitate to do business with Lindus." Robert B. Centerville, MN April 21, 2026 "Very professional and installation went very smooth. Great at communicating and was happy with the job that was done." Jane P. Shorewood, MN February 15, 2026 "I signed another contract with Lindus Construction — this time to spray foam and fully seal my attic, followed by an additional top layer of insulation. This is not a simple job. My home has a very complex Unico high-velocity air conditioning system running throughout the attic, and Lindus still took it on without hesitation." Kevin K. St. Paul, MN February 2, 2026 We have worked with Lindus to insulate above our garage. They did excellent work, timely, efficient, and clean. Super friendly. Now, in 2026 we had a leak in our ceiling so we called Lindus. Matt came out and went in the attic and found the source - not a roof leak or anything Lindus could fix...it was an HVAC issue. Matt was exceptional and professional. They did not charge me for the inspection or for finding the problem. They believe in building trust and long-term customers. I will continue to use Lindus because of these values." John M. Rosemount, MN January 13, 2026 "Jake Calleja’s service was prompt, knowledgeable, and thorough with excellent follow up. His manner was so pleasant—Lindus Construction is lucky to have him." Barbara K. Hugo, MN January 29, 2026 ## Learn More About Insulation & Home Performance Evaluations: [![spray foam insulation](https://structurem.lindusconstruction.com/wp-content/uploads/2022/02/insulation623-5-768x512.jpg) View Project](https://structurem.lindusconstruction.com/blog/what-influences-the-cost-of-an-insulation-project/) [Insulation](https://structurem.lindusconstruction.com/blog/category/insulation/) [What Influences the Cost of an Insulation Project?](https://structurem.lindusconstruction.com/blog/what-influences-the-cost-of-an-insulation-project/) Learn the key factors that influence attic insulation costs, including vermiculite removal, rodent damage, wet insulation, and more. [![Mold in attic](https://structurem.lindusconstruction.com/wp-content/uploads/2019/04/attic-mold-768x423.jpg) View Project](https://structurem.lindusconstruction.com/blog/blog-prevent-mold-growth-home/) [Insulation](https://structurem.lindusconstruction.com/blog/category/insulation/)[LeafGuard Gutters](https://structurem.lindusconstruction.com/blog/category/leafguard-gutters/) [5 Ways To Prevent Mold Growth In Your Home](https://structurem.lindusconstruction.com/blog/blog-prevent-mold-growth-home/) [![Brick house in the winter](https://structurem.lindusconstruction.com/wp-content/uploads/2019/12/winter-house-scaled-1-768x447.jpeg) View Article](https://structurem.lindusconstruction.com/blog/six-winter-specific-insulation-problems/) [Insulation](https://structurem.lindusconstruction.com/blog/category/insulation/) [Six Winter Specific Insulation Problems](https://structurem.lindusconstruction.com/blog/six-winter-specific-insulation-problems/) If you’re experiencing any of these six scenarios, it’s a silent signal from your home that more insulation, ventilation, and attic air sealing are likely needed. 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