RetroGreen Energy

Home Improvement Company in Saint Cloud, MN
Home Improvement Company in Saint Cloud, MN RetroGreen Energy is a fully licensed and insured insulation contractor based in St. Cloud, Minnesota, proudly serving Central Minnesota, the Twin Cities and greater Minnesota. For over a decade, our ENERGY STAR Certified team has specialized in advanced injection and spray foam insulation, attic removal and installation, crawl space and foundation insulation, comprehensive energy audits and soundproofing solutions.

As an Authorized RetroFoam Dealer, we utilize proprietary foam technology to deliver up to 30 percent savings on heating and cooling costs, enhanced indoor comfort and superior air sealing. We hold Building Performance Institute (BPI) certification and maintain an A+ rating with the Better Business Bureau. At RetroGreen Energy, it is our mission to improve home performance, reduce carbon footprints and educate homeowners on sustainable building science.
Business Details
  • Licensed and insured
Highlights & Specialties
  • BPI-certified energy audits in St. Cloud area
  • Comprehensive blower door air leakage testing
  • Infrared thermography reveals hidden heat loss
  • Room-by-room outdoor connection pressure analysis
  • Customized testing packages with detailed reports
  • Proven results backed by client testimonials
Social Profiles

Contact Details

Address
3312 Southway Drive
Saint Cloud, MN
56301
Phone
Driving Directions

Products & Services

Wall Insulation
read moreOur wall insulation service with RetroFoam offers homeowners an advanced solution for inefficient walls. Using precise injection techniques, we fill your wall cavities completely while preserving the beauty of your homes exterior. This non-toxic, maintenance-free insulation provides higher thermal resistance, better soundproofing, and added fire safety, giving you immediate and lasting comfort with a one-day installation.
Attic Insulation
read moreOur team delivers professional attic insulation services that address energy loss, indoor comfort, and moisture control. By creating a complete thermal envelope, sealing every gap, and improving airflow, we transform your attic into a key component of your homes performance. Using only proven materials and techniques, we ensure your attic functions efficiently all year long.
Energy Audits
read moreOur energy audit service combines industry-leading expertise and advanced diagnostics to evaluate your homes performance. We perform detailed tests, such as infrared thermography and blower door measurements, to expose areas of inefficiency. Every audit includes a thorough report with clear findings that empower you to optimize comfort, save energy, and maintain home value.
Soundproofing
read moreAt RetroGreen Energy, we offer professional soundproofing solutions designed to reduce unwanted noise and create a quieter environment. By injecting RetroFoam insulation into walls, ceilings, or floors, we minimize disruptive sounds without major construction. Our method is clean, efficient, and preserves your buildings structure while enhancing comfort and energy efficiency.
Theresa Frericks
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.
Diana Nelson
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.
Eric Falk
May 17, 2025
Highly, highly recommend! From the thorough assessment of needs, to the clear estimation (broken into priority levels), to the exacting completion of the job, to the positivity, friendliness, and cleanliness of the work crew, to the completed project we have been extremely pleased! Already notice a difference particularly in the upstairs but also throughout the house. Excellent experience!
Jason Lampel
May 01, 2025
These guys were great. Sales/quote was very thorough and informative, good communication and follow-through on rebate applications. As for install, the crew of 4 or 5 worked well together, showed up on time, answered my questions, knocked out my retrofoam install in 6 or 7 hours, did a respectable job cleaning up afterward, and I can't even tell which pieces of siding they removed.

Good work fellas!
L. K.
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.
Vernon Hedlin
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.
Angie Einerson
Feb 15, 2025
Quite the operation, I loved that they were able to complete the (huge) job in one day.
Dennis Grabuski
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!
Steve Modica
Dec 08, 2024
Retrogreen insulated my older cabin. They were really fast, they made sure the foam didn't get inside and make a mess, and they cleaned everything up when done. I was very impressed. Special thanks to Nick, Nate, Scott and Lupe. Also, the foam seemed to make a difference right away. The place stays warmer when its cold out.
Marcus Tolbert
Nov 22, 2024
For insulating my old home's attic they were careful, thorough, cleaned up after the work was done, and finished everything in one day.
Haley Tsuji
Sep 25, 2024
RetroGreen was great to work with! After coming to them with concerns about temperature fluctuations in our 2nd floor, they were quickly able to identify the problem (literally no insulation), and come back with a quote. They were able to fit us in quickly after receiving the down payment and clearly laid out all the tax and rebates available to us. Were very happy with the work and are excited to not freeze this winter!
Elizabeth Carlson
Sep 05, 2024
From start to finish, the RetroGreen team was great to work with. Quality people, quality communication, and quality service with very little disruption to our 100 year old house.
Paul Joseph Greene
Aug 16, 2024
RetroGreen Energy is the best! 5 STARS is NOT ENOUGH!

We are so grateful for RetroGreen's commitment to excellent work, and to treating us with respect.

That started from the very first moment Don arrived for our estimate, and never stopped. He was knowledgable, thoughtful, and responsive even after we had made our final payment. The crew was professional, courteous, and businesslike throughout.

When we noticed a minor oversight, and brought it to their attention, in less than an hour we heard from a member of the team who scheduled a time to come out and make things right. And that's just what they did.

They even helped us with energy rebates that made it possible for us to afford this attic and sunroom insulation project.

We say again: 5 STARS is NOT ENOUGH!
Craig Burlingame
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.
Kara Newman
Jun 10, 2024
RetroGreen did a nice job insulating my attic with spray foam. Both the sales team and installation team were easy to work with. I would definitely hire them again.
Scott Hemink
Jun 09, 2024
Great experience and extremely professional crew! They insulated the attic spaces in our 1 1/2 story house. This reduced our air leakage by 38% Seriously! Executed a combination of foams and blown fill exactly as planned, arrived and completed on schedule, and kept everything extremely clean! Even sent me pictures of the final installation for my records! I wish all my contractors were this professional!
Barbara Chirinos
Apr 24, 2024
Everyone associated with this project was professional and pleasant from the owner who provided the initial overview and quote to the crew who worked in the hottest weather of the summer to complete my project on time. It was a sizable investment in my 1949 home. I immediately noticed the reduction in outside noise and an improvement on what was a drastic difference in temperatures between main level and second story.
Vern Voss
Apr 11, 2024
Excellent Service.
Chris had a large crew doing our attic crawl space. Several trucks and lots of equipment. They had to open up the roof to access this tight space. The crew removed the old crappy insulation, foamed in new for R-60, repaired the roof with matching shingles. They where finishing up as the rain came. Excellent timing guys.
I am glad the team was so well prepared and did good job of cleaning up. We can feel the difference in our home already.
Jennifer Posusta
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!
Nathan Niblick
Nov 24, 2023
I couldnt be happier. By far the most knowledgeable and professional salesperson and installers of any that quoted me. I see why they have such a great reputation in the industry. I would 100% recommend them for any of your insulation needs.
Northland Steam Cleaners
May 20, 2023
The team at Retro Green did a fantastic job on our house. They showed up when they said they would, left our place clean, were very responsive and professional. We would highly recommend!
Tom Eggleston
Apr 12, 2023
Super professional and very knowledgeable. The whole process was awesome from the quote to the job getting done. The crew even left the house cleaner then it was when the got here. Can already tell the difference in air quality and my home is much more comfortable already. Definitely would call these guys with future projects
Janel Weinkauf Yasgar
Mar 07, 2023
We are very happy that Retro Green was able to help us with our Insulation in our Roof/attic and our exterior walls.
Having an older home, things were not as they should have been. Lack of insulation as well as lack of venting in the attic caused many issues. Having very little insulation in the walls as well, made for a cold house in the winter and hot in the summer!! The furnace and fireplace seemed to never shut off and the AC was the same!!
I highly recommend them as they are very easy to work with and the guys that do the work are very professional. Any question I had, they answered without any hesitation. They know their stuff!!
We are excited to see our propane bill be lower this year!!
Eric Larson
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!!
Dick Taylor
Feb 23, 2023
I had RertroGreen remove and reinstall attic insulation in our 25 year old house as it was apparent what was in there, wasn't doing the job. Our furnace ran constantly when temperature got below 10 F, and we had 5 foot icicles growing off the roof, even when temperatures were below freezing. Ergo, there was a massive heat loss. RetroGreen came in and in the space of 2 days, removed the old insulation, sealed and wrapped anything that needed it, (which was a lot!) and replaced it with new insulation. This was impressive to me as this is a large attic 3000+ sq.ft..
While it has been less than a week since they finished their work and I should actually give it more time before I make any permanent judgements, I can state at this time that during the recent snowstorm and subsequent sub-zero temperatures, the house stayed warm and draft free and the furnace spent more time off than on!
I am very happy with the results. There was a 30% reduction in air loss after the insulation was installed.
William Orr
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.
Paul Udstrand
Dec 20, 2022
We used RetroGreen to replace attic insulation and inject insulation into our bedroom walls. The entire crew was friendly, courteous, and extremely willing to answer any questions. They arrived on time and finished in a few hours. Everything from the dumpster delivery to the arrival of the crew was on time as scheduled. The quality of the work is outstanding. I would recommend RetroGreen to anyone looking for insulation installers.
Mike Wegner
Nov 18, 2021
We had Retro Green come and insulate our home the was built in the late 60's. They where very reasonable and had a great product. I believe the house is less drafty and is much quieter! Their crew was friendly and hardworking! Thank you for a great job!!
Mike & Edee Conner
Nov 10, 2021
The crew led by Paul was on time and extremely responsive to my questions and concerns. The work they did, taking out the old attic insulation and replacing it with foam and blown in insulation was amazing. I am completely impressed by their workmanship and professionalism. My wife was excited with the cleanliness of the project. We would have to say JOB WELL DONE.
Andy Juelich
May 19, 2021
Fantastic group of people. From the sales team (Sam) explaining all aspects of the scope of work, with detailed photos and examples, to the team of installers that spent the time to explain the process and demonstrate how everything works. Paul (on site Supervisor) and his team (Andy, Jake and Vince) worked through some challenging conditions (rain and wind) without any concerns or complaints.

As a homeowner I wanted to ensure the team understood what my main concern was (drafty windows and doors), Paul spend additional time to discuss my main concerns with me and the team to ensure they were going to alleviate the issues I had. Paul, Andy, Jake and Vince were very professional while on site and prioritized their time to complete this project in the time they stated. This house was a bit of a challenge with previous renovations (the house was built in 1890) but Paul and the team worked with me to ensure we were able to achieve the intended outcome.

As a costumer I was very happy with the support and attention to detail that Paul and his crew preformed. I would highly recommend that anyone with insulating needs reach out to this group of devoted, determined, and highly skilled professionals. I'm very PROUD of the team and willing to answer any questions folks may have as I will continue to support this company.

And yes I'm a real person. Please see attached picture of the project.
Hours of Operation
Monday09:00 AM÷05:00 PM
Tuesday09:00 AM÷05:00 PM
Wednesday09:00 AM÷05:00 PM
Thursday09:00 AM÷05:00 PM
Friday09:00 AM÷04:00 PM
SaturdayClosed
SundayClosed
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