Serving St. Louis, St. Louis County, Ballwin, Wildwood, Chesterfield, Arnold, University City, Oakville, Maryland Heights, Fenton and beyond Attic Insulation St. Louis

Premium customer service and work product Mar 7, 2026

In an era where it seems like a lot of businesses are running their employees ragged, with quick visits and cheap materials, optimizing margins, you forget what good, thoughtful customer service along with a good work product can be like. Grant spent hours evaluating my home and explaining the plan in detail. I was on a budget, so he broke my plan down into sub-projects in order of priority. The interaction felt like a consultancy and not a sales pitch, providing useful information, without constant follow-ups to close some sort of deal. In other words, it felt like I was interacting with a professional, confident business. He was actually present throughout the project, checking in with his team and myself. Ironically, this wasn't necessary with his team. Elijah, Tim, and Clayton were equally professional. Everyone actually cared about the quality of their work. They were actually normal, kind people who actually cared about the quality of their work, while remaining intentionally mindful and respectful of being in someone's home. The work performed was air sealing and insulation. The team had diagnostic tests, including blower assessments and thermal imaging, with before and after comparisons for a data-driven/supported approach. They actually cleaned up after themselves so well I think my house might have been left cleaner than how they found it. You might have noticed I said "actually" a lot. That's because with this old house I've had a lot of local well-known companies taking on projects, and those experiences have caused me to expect less. Building Envelope Experts offers a premium customer service experience and work product at normal, competitive pricing. This is not some paid, or worse, AI review. If you have issues, call them up and give them a chance to earn your confidence. You're only risking some of your time.

Doug Hammerstroem

Very professional and thorough Feb 20, 2026

Grant and his whole team were very professional and thorough with my attic insulation and air sealing job. Grant sat down with me for 2 hours to discuss everything about insulation, air sealing, HVAC, and really create a whole game plan for the home. We discussed multiple options and price points. The work was a lot less disruptive than I had expected. It is a multi-day job, but the crew cleaned up after themselves every day. Really looking forward to talking with Grant one day in the future when I need a new HVAC system.

Adam Treaster

The difference in home comfort was noticeable Sep 24, 2025

We had a new roof installed only to find out afterward that our attic had almost no intake ventilation due to blocked soffits—definitely not ideal. That’s when we contacted Building Envelope Experts, and working with Grant Vogel was a game changer. Grant took the time to thoroughly assess our home, walk us through our options, and customize a plan that addressed everything—from creating real attic airflow to venting bathroom fans properly, adding high-quality insulation, sealing vulnerable areas, and more. The crew was professional, the work was completed on schedule, and the difference in home comfort was noticeable almost immediately. Even better, when a minor issue came up after the work was done, Grant responded right away and made sure it was fixed quickly and completely. If you're serious about improving your home’s energy efficiency and long-term durability, I highly recommend Grant and the team at Building Envelope Experts. They really know their stuff and stand behind their work.

Amanda Lee Venezia

Great Job Insulating Our House Jan 15, 2025

Grant, Elijah, and Tim did a great job insulating our house. They are very thorough and committed to making sure everything is done correctly. We would recommend them to everyone.

Cathy Schmitt

Definitely worth it! Nov 21, 2024

Very pleasant experience and the improvement to the comfort of my home was apparent the very first night and following day. A cold front moved in overnight, but my furnace is working less (it didn't even turn on overnight, and the house stayed warm) and it is noticeably quieter inside (although it is very windy outside). Definitely worth it!

Kurt Schmid

Love my new front door Aug 6, 2024

Highly recommend Building Envelope Experts. They recently completed 2 projects for me. Both were smooth processes, from planning to execution. Excellent follow-through in planning process, and work crews were easy to work with and have around. Attic insulation is a helpful but hidden update. Love, love, love my new front door. Light coming into the north-facing living room from the half-glass door has totally changed how the room looks and feels.

jacky bloom

Service is excellent Feb 22, 2024

I've used BEE multiple times, and they do what they say they are going to do. Their prices are reasonable, and their service is excellent. And for the OCD property manager like me, they clean up after their work.

James Zirngibl

Truly a professional local business Feb 9, 2024

Received a very positive estimate for installation of a more effective layer of insulation in our home. The job was done on the projected date as stated. Job was done professionally and cleanup was top-notch. If we had to rate on a scale of 1 to 10, it would be a 12. Truly a professional local business. Totally recommend.

Larry D. Hale

Integrity and professionalism Feb 8, 2024

Building Envelope Experts is an excellent group of folks who bring integrity, professionalism, and responsiveness, all which you hope for, and you realize when you have them seal your attic, in my case. We had zero degrees in STL for a week, just after they finished, and no worries knowing that the upstairs bathroom pipes that previously froze at 25 degrees are now safe and sound. I would use these folks in a minute.

Kevin Lynch

Best work we've ever had Nov 13, 2023

We had a lot of sealing work and attic insulation improvement. Elijah, Grant, and Jake were great. Best work we’ve ever had done at our house. Everything was done completely and meticulously. I would definitely hire them again.

Wesley Haynes

Superb Insulation Job Jan 17, 2022

We used Building Envelope Experts for our insulation. They did a superb job, not only adding insulation on top, but taking out the old insulation, sealing up any air leaks, and then adding new insulation on top. Not only have our heating needs gone down significantly, but our house is so much more quiet now. My kids woke up during every thunderstorm for years and now sleep through them all!

Meg Carosello