Soundproofing
At RetroGreen Energy, we provide soundproofing that minimizes noise and improves your buildings energy efficiency. We inject RetroFoam through discreet openings into hidden cavities, delivering quiet and comfort without invasive construction. Our quick, clean process ensures your space remains intact while you enjoy reduced noise and lower heating and cooling costs.
Energy Audits
RetroGreen Energy delivers precise, science-based energy audits to evaluate your homes efficiency. Our certified analysts use blower door tests, thermography, and pressure assessments to uncover air leaks, insulation gaps, and hidden spaces. The detailed reports we provide are invaluable for planning upgrades and verifying the impact of your energy projects.
Attic Insulation
Our attic insulation service combines expert diagnostics with meticulous installation to maximize your homes energy performance. We identify and seal critical air leaks, install proper ventilation, and apply the right insulation for each attic type. This holistic approach keeps conditioned air where it belongs and prevents issues like ice dams and moisture damage. Your comfort is our priority.
Wall Insulation
We offer wall insulation services using RetroFoam, an innovative injected material tailored for existing homes. Our expert installation fills cavities completely without damaging walls, enhancing efficiency, comfort, and structural integrity. Designed to resist settling, pests, and moisture, RetroFoam insulation is applied cleanly and quickly, delivering superior performance and long-term benefits to your home in just one day.
Jun 09, 2025
Highly recommend RetroGreen for quality of communication, timeliness, professionalism, and cleanliness.
They told us exactly which 2 days they would be at our place, brought a large crew those 2 days, and blew foam into our attic, walls, and crawl space. They were exceedingly polite, and cleaned up very very well afterwards.
Both days were rainy and muddy, so the hoses dragged mud inside, but they had dropped plastic and cardboard throughout the interior. Even covered appliances. With all the mud and rain, we expected to come out to quite a mess, but they cleaned and wiped every surface.
The a/c is running 1/2 as often to cool the house as prior to installation, so work was obviously effective as well.
Quality work by quality people
Jun 02, 2025
The experience I had with Retro Green was awesome. I had a lot of questions about the process and they were very knowledgeable and patient. Thanks Drew and Don!! Great guys that came out to do the install and they cleaned up very well. I have noticed a difference already in my lake cabin. Thanks again Retro Green.
May 25, 2025
I had expanding foam insulation installed in the walls of my 1954 house by RetroGreen of St. Cloud. (Although the blown in attic insulation I had hired 5 years prior helped utility costs tremendously, the old wall batting was making little difference in heat retention.Or keeping cool.The new furnace ran often.)
A great 3 man crew arrived on time; they were polite, got along well, worked efficiently, and clean up was like " they had never been there." My foundation plants survived very well and were treated with care. The double dutch lap siding was handled expertly.
Exterior sound from the neighborhood was reduced immediately. There's little doubt in my mind that propane and electricity usage will be reduced. It feels even more of a sweet, cozy little house now.
You have a great crew , Chris. Thank you for the thorough coverage of information and quote early on.I appreciate the immediate rebate application form being taken care of,too, Lupe.
Apr 08, 2025
Great crew - great work! Professional and reliable from bid to finished job. I had a really rough start trying to find a local company that would show up to look and actually provide straight answers and a solid bid. It was overwhelming and stressful.
From the moment Retrogreen took my first phone call, the stress was gone. The crew was great, my house is finally cozy.
From their general expertise, to the excellent customer service and fantastic work, I cannot recommend this company enough.
Mar 19, 2025
I was very impressed with their work. Everyone knew what their job was and worked great as a team. If I had a question, they explained to me what they were doing and how it was done. I was shown with the infrared camera how it looked before and after. They were done in no time. They all were very friendly and fun to talk with; a great bunch of guys. I'm very happy with their work. Thank you to a great crew.
Feb 25, 2025
We felt confident with RetroGreen because of Chriss architect expertise in understanding our pieced together cabin, and how insulation would help the efficiency of the cabin. The crew was efficient, skilled, and cleaned up after they were done.
Feb 20, 2025
The crews arrived right at the time expected, went right to work and everyone seemed to know just what their job was. Worked very well together and were very courteous and concerned whether or not I had any questions about the process. The job went very well and when they were finished, everything was cleaned up just like they had never been there. I am sure when winter comes we will notice a big difference in the warmth of our 100+ year old house.
Feb 15, 2025
Quite the operation, I loved that they were able to complete the (huge) job in one day.
Jan 24, 2025
The crew did great job! Once the project was complete what difference did it make! I would recommend Retrogreen Energy to anyone especially with older homes that have no insulation in the structure from roof to basement walls!
Jan 03, 2025
Great job insulating my house. It was a big job, and employees completed the job in a very timely manner. Very polite and courteous, cleaned up after the job was completed; very nice job. I was very pleased with the process.
Nov 09, 2024
Very professional and conscientious. The customer service was friendly and informative. They were very thorough and seemed to take great pride in their work. The clean up was immaculate. I would recommend to anyone.
Oct 31, 2024
Very professional and knowledgeable. Answered all my questions. They finished everything in the time they said and didnt leave a mess behind. Will definitely be contacting them again next year to do my walls. Thanks again!
Oct 03, 2024
Very professional group. Not pushy in selling me a project. Understood my needs and are complete experts when it comes to older homes and insulations. Felt comfortable working with them from day one of getting quote. Top notch group.
Aug 24, 2024
The crew got to us, did their tasks and cleaned up afterwards. Prices for our event was explained and agreed to, small down payment. Couldnt be easier. We are very pleased with the insulation install.
Jun 23, 2024
The guys showed up almost a month early (thank you Minnesota winter) at the appointment time and were ready to work within a short time. Very professional crew. Explained everything, didn't;t mind me watching over their shoulder, and when they left you couldn't't tell they had even been here. Now to wait and see what the difference in sound and heating/cooling bills will be.
Apr 01, 2024
Great experience! Nick and crew were professional and courteous. They arrived when promised, and promptly went to work! They cleaned up perfectly, to the point where it didnt even look like anyone had taken off siding, etc. I already notice the difference in less sound coming through the walls, and heat staying in. Thank you, to RetroGreen!
Feb 03, 2024
The guys did a great job, very considerate of the flowers and plants we had around the house, did a great job of cleaning up after they were done, asked if we had any questions, did a walk around after they completed the job, very pleased with the work.
Feb 02, 2024
These guys did an absolutely fantastic job. From the initial visit all the way to post-install cleaning up, where every last crumb of foam from the installation was policed up. After it was installed, they spent the time to show me where it was installed and provided me with a way to download and access the FLIR images. The on-site foreman walked me through where everything was installed and explained that my house was pretty much empty when it came to insulation between the outside walls and the studs; there was literally no insulation whatsoever between the studswith the post FLIR Images I was able to see where the foam insulation was pumped in, basically, I went from zero to hero in regards to my overall R factor in my home. He also explained that I would most likely be able to feel the difference immediately. And believe it or not, I was immediately able to feel the difference. When I had the insulation installed, it was a sweltering day here in Minnesota, the following day was just as hot. However, my air conditioner definitely ran much less than the previous day, before the installation. I will be keeping a close eye on my heating and air conditioning bills moving forward just to see exactly how much money I save between the years without the insulation versus now.
Jan 09, 2024
The retro green guys did a spectacular job insulating our almost 100 year old house. Super professional and made the whole process super easy. Highly recommend if youre looking to have your house insulated!
Dec 28, 2023
Got my garage insulation project done quickly and did a great job - and I can tell the insulation is working well! I hear my heater running a lot less already, despite the weather the last few days. Great work!
Dec 10, 2023
Great experience with Retro Green! I have an historic home and they carefully removed the siding to drill holes and put it all back in place when they were finished and touched up the paint. Excellent communication from start to finish.
Feb 27, 2023
RetroGreen made two visits for our project. The first was to remove all the existing insulation in our attic in preparation for replacing HVAC ductwork. The second was to spray foam the new ductwork and seal gaps where it penetrated walls and floors. Foaming took place in the attic, main level and a crawl.
At each visit the crews showed up exactly on time. They confirmed the work to be done and asked multiple times if we had any questions before starting. They were good humored and engaging which is a monster plus for me. They worked efficiently and quickly. The finished work is better than we expected.
5 Stars!!
Jan 30, 2023
This comes just a few days after the work was done, but very happy with the Work RetroGreen did for us. They took out all the old insulation, and foam sealed where it needed, and then blew in new insualtion. They also took care of a couple other little issues that needed repair. They said we gained about 30% efficiency, which they said was good. It's summer now, so we will see how well it works in the future, but for now, i'm very pleased with the work done.
Jan 01, 2023
RetroGreen Energy was a great experience from start to finish. It was clear from the start they were honest about what services and scope of insulation would be beneficial for our home, and more importantly what wouldnt be necessary to do. Great people from Chris, to customer service, to the entire crew. Great experience overall!
Dec 10, 2022
The entire process from start to finish was exceptional. The Retrogreen team that worked on removing and installing the insulation did a fantastic job. There was a bonus too! I should have installed an exhaust fan in the bathroom before their arrival
which didnt happen. They suggested having me purchase a fan and they would install it for me. This made the total project solid.
Their advertising sign is still standing proudly in my front yard. Great job men. Cheers!
Dec 03, 2022
As a business owner in the service industry, I was overly impressed with the amount of effort they took to protect the entire house. The entire crew worked their tails off. Nick, the foreman was hands down amazing and answered all of my questions.. Communicative, responsive and a pleasure to work with. Not only did the protection of the house amaze me, the clean-up was just as good. I highly recommend this crew!
Dec 04, 2021
Great job, from initial contact, thru energy audit, quote, and install. Every question I had was answered and explained. Paul and crew were on time, courteous, and did an awesome job! We had a few "problem areas", and they were taken care of on the same day. House is noticably quieter and temps inside are more even. Haven't had to run the furnace since they were here, but the AC definitely doesn't run as much as before! Now, can't wait to see how the house does this winter! Chris, Ruth, Drew, Paul and crew, thank you for a job well done!
Mar 22, 2020
We contacted Home Advisors who gave us 3 companies to contact for adding insulation to our home. RetroGreen had their "act" together and after doing an energy audit of our house, Paul pointed out the areas where we were lacking sufficient insulation and air leaks. Sam came and took the measurements and gave us a quote. We had to wait longer than we liked to have the work done but have found out that the busy contractors are usually the ones that do the best job. Cody brought the crew in yesterday (half hour earlier than we were told). They went right to work and vacuumed out the old insulation and sealed the areas that leaked, built boxes around fixtures that stuck up into attic. and made a frame around ladder going into attic. Then they sprayed R-60 cellulose insulation into attic, making sure the ventilation needed was there. They cleaned the work area up including the ladder. I highly recommend RetroGreenEnergy
Feb 24, 2017
The company representative at the home improvement trade show was knowledgeable and easy-going, which made it easier to ask for a home visit. The scheduler and estimator were friendly and responsive, and gave straight answers quickly. And the crew was best of all: punctual, professional, personable, and thorough. From first meeting to completed project was less than a month, and I'm very happy with the results.
Mar 12, 2016
Our experience was very good. The salesman was experienced and knowledgeable. The employees on the job were polite and efficient. It took about five hours, less than we thought. Before the job started our attic was rated R16, after R60. And the blower test before and after was impressive. We have a vaulted ceiling in the living room and dining room. Another company we contacted wasn't interested in insulating the vault but no problem for RetroGreen. We recommend the company.