At RetroGreen Energy we are locally owned and have years of experience with "state of the art" equipment to make your home or business a truly and energy efficient asset! We specialize in maximizing the energy performance within your home or business. RetroGreen Energy is Minnesota's specialty insulation contractor. We focus on using high performance insulation and building science to improve home performance and energy efficiency. Our work encompasses all types of existing buildings including residential, multi-unit residential, agricultural, industrial and commercial buildings. As an independent family owned business, we take pride in our work, reputation and relationships. By offering only the highest quality home performance solutions, we can GUARANTEE improved comfort and lower utility bills. Chris Froelke the owner has spent almost two decades in construction, Chris and is team are the go to experts in solving energy related problems with exiting structures.
"Excellent company! Excellent work!"
Andrea R on July 2023
At RetroGreen Energy we are locally owned and have years of experience with "state of the art" equipment to make your home or business a truly and energy efficient asset! We specialize in maximizing the energy performance within your home or business. RetroGreen Energy is Minnesota's specialty insulation contractor. We focus on using high performance insulation and building science to improve home performance and energy efficiency. Our work encompasses all types of existing buildings including residential, multi-unit residential, agricultural, industrial and commercial buildings. As an independent family owned business, we take pride in our work, reputation and relationships. By offering only the highest quality home performance solutions, we can GUARANTEE improved comfort and lower utility bills. Chris Froelke the owner has spent almost two decades in construction, Chris and is team are the go to experts in solving energy related problems with exiting structures.
"Excellent company! Excellent work!"
Andrea R on July 2023
Koala Insulation of St. Paul is the area's certified insulation expert providing high-quality insulation services to homeowners, contractors and property owners. We work with new construction, retrofit applications, and properties affected by natural disasters or that have suffered significant damage. We provide all types of insulation including blown-in cellulose and fiberglass, spray foam, and batt-insulation. Furthermore, we provide a number of energy efficiency upgrades such as air sealing, thermal imaging, hatch and can light covers. If it involves insulating or improving energy efficiency within a building envelope, we can handle it. We offer competitive prices and free insulation evaluations. We are locally owned and operated, fully insured and licensed, and our services come with a limited lifetime warranty.
"Did good job "
Douglas R on February 2025
Koala Insulation of St. Paul is the area's certified insulation expert providing high-quality insulation services to homeowners, contractors and property owners. We work with new construction, retrofit applications, and properties affected by natural disasters or that have suffered significant damage. We provide all types of insulation including blown-in cellulose and fiberglass, spray foam, and batt-insulation. Furthermore, we provide a number of energy efficiency upgrades such as air sealing, thermal imaging, hatch and can light covers. If it involves insulating or improving energy efficiency within a building envelope, we can handle it. We offer competitive prices and free insulation evaluations. We are locally owned and operated, fully insured and licensed, and our services come with a limited lifetime warranty.
"Did good job "
Douglas R on February 2025
Professional Mechanical Services offers a wide range of HVAC and plumbing services, including air quality control, energy cost reduction, water filtration, and services for your plumbing and sump pump in Maple Lake, MN and the surrounding areas. Family-owned and locally based in Big Lake, Minnesota, Professional Mechanical Services provides superior HVAC and Plumbing services for residential and commercial properties. We service and repair all brands of HVAC equipment! Looking for new equipment? Professional Mechanical Services is proud to offer Daikin products – the leading brand of HVAC equipment.Water heater or other important household equipment not working and you needed it fixed yesterday? We provide SAME-DAY emergency services. We’ll even work with your insurance company and handle all paperwork if you need us to.
"Nathan has helped us fix the issue by getting a correct team in place, He was professional and gentle. It was nice working with him."
Krishna D on April 2025
Professional Mechanical Services offers a wide range of HVAC and plumbing services, including air quality control, energy cost reduction, water filtration, and services for your plumbing and sump pump in Maple Lake, MN and the surrounding areas. Family-owned and locally based in Big Lake, Minnesota, Professional Mechanical Services provides superior HVAC and Plumbing services for residential and commercial properties. We service and repair all brands of HVAC equipment! Looking for new equipment? Professional Mechanical Services is proud to offer Daikin products – the leading brand of HVAC equipment.Water heater or other important household equipment not working and you needed it fixed yesterday? We provide SAME-DAY emergency services. We’ll even work with your insurance company and handle all paperwork if you need us to.
"Nathan has helped us fix the issue by getting a correct team in place, He was professional and gentle. It was nice working with him."
Krishna D on April 2025
We are your one stop shop for all your insulation needs. Century Insulation is proud to offer quality work with experienced Technicians at affordable pricing. Free estimates.
"I had a great experience with Century Insulation, they were happy to answer all my questions, offered a fair price and the work went smoothly."
Stuart W on November 2023
We are your one stop shop for all your insulation needs. Century Insulation is proud to offer quality work with experienced Technicians at affordable pricing. Free estimates.
"I had a great experience with Century Insulation, they were happy to answer all my questions, offered a fair price and the work went smoothly."
Stuart W on November 2023
We are a family owned company that does all types of insulation work. Services include Spray Foam Insulation, Fiberglass/Cellulose Batt and Blown Insulation. We do vac outs of attics and insulation removal. We have been in business for 15 years. We pride ourselves in honesty and integrity. We insulate attics, additions, remodels, and entire houses. We also insulate shops, garages, office buildings, sheds, and other out buildings. Please call us for a free estimate.
"Joe and his team were awesome to work with. Their attention to detail and responsiveness to questions prove they are the best in the business."
Marcell D on August 2024
We are a family owned company that does all types of insulation work. Services include Spray Foam Insulation, Fiberglass/Cellulose Batt and Blown Insulation. We do vac outs of attics and insulation removal. We have been in business for 15 years. We pride ourselves in honesty and integrity. We insulate attics, additions, remodels, and entire houses. We also insulate shops, garages, office buildings, sheds, and other out buildings. Please call us for a free estimate.
"Joe and his team were awesome to work with. Their attention to detail and responsiveness to questions prove they are the best in the business."
Marcell D on August 2024
We are a CenterPoint Energy and Xcel Energy rebate eligible contractor with over 20 years of experience. We have all your home insulation needs covered! Please give us a call for a free estimate today!
"We had Freedom Insulation air seal, add chutes, and increase our attic insulation. Their work drastically improved comfort of our home, almost immediately. Great company, highly recommend!"
Brandon C on March 2024
We are a CenterPoint Energy and Xcel Energy rebate eligible contractor with over 20 years of experience. We have all your home insulation needs covered! Please give us a call for a free estimate today!
"We had Freedom Insulation air seal, add chutes, and increase our attic insulation. Their work drastically improved comfort of our home, almost immediately. Great company, highly recommend!"
Brandon C on March 2024
Cozy Insulation is a Owner/operator company. The owner is the salesman, and the installer. We have a 4-5 man crew
"I contracted Cozy Insulation for a garage + bonus room job. We couldn't be happier with the quality of the final outcome, service and overall experience. Jason and his crew were professional, timely and skilled for the duration of the project, and Jason was forthright and consistent with his estimate and final price. Five stars."
Dave V on June 2024
Cozy Insulation is a Owner/operator company. The owner is the salesman, and the installer. We have a 4-5 man crew
"I contracted Cozy Insulation for a garage + bonus room job. We couldn't be happier with the quality of the final outcome, service and overall experience. Jason and his crew were professional, timely and skilled for the duration of the project, and Jason was forthright and consistent with his estimate and final price. Five stars."
Dave V on June 2024
Contact us today to schedule your FREE insulation inspection and estimate. Homeowners may be eligible for up to $1,850 in rebates for Angi Customers. We are BPI Certified and a rebate eligible installer for Centerpoint Energy, Xcel Energy, and MN Energy Resources. Snap Construction is a locally owned and operated company offering full roof, siding, 3+ window replacements, and insulation. Financing available.
"Tarik and Alexis were friendly, diligent, and did a fantastic job insulating our attic. I recommend Snap Construction and Tarik and Alexis."
Sean Q on March 2025
Contact us today to schedule your FREE insulation inspection and estimate. Homeowners may be eligible for up to $1,850 in rebates for Angi Customers. We are BPI Certified and a rebate eligible installer for Centerpoint Energy, Xcel Energy, and MN Energy Resources. Snap Construction is a locally owned and operated company offering full roof, siding, 3+ window replacements, and insulation. Financing available.
"Tarik and Alexis were friendly, diligent, and did a fantastic job insulating our attic. I recommend Snap Construction and Tarik and Alexis."
Sean Q on March 2025
For over 10 years NES Spray Foam & Coatings has grown to become one of the most respected, knowledgeable and quality spray foam insulators in Minnesota. We apply open cell (Icynene type) 3.8 R value per inch, closed cell (ridged) R-7 per inch and foundation foam/polyurea (a premium foundation system) Based in Minnesota, NES is the largest spray foam applicators in the Midwest with 10 mobile units. We can service anywhere in the United States. Completed jobs in - Louisiana: New Orleans, Lockport, Shreveport, and Monroe, Mississippi: Jackson, Iowa: Des Moines, Council Bluffs, and Cedar Rapids, Missouri: Kansas City, Kansas: Kansas City, and varies locations in both Wisconsin and Minnesota. NES gives on-the spot field inspections and a product that refuses to sacrifice quality or performance. We cannot afford to offer our customers anything but the best in insulation products and services. Call today to schedule a free quote!
For over 10 years NES Spray Foam & Coatings has grown to become one of the most respected, knowledgeable and quality spray foam insulators in Minnesota. We apply open cell (Icynene type) 3.8 R value per inch, closed cell (ridged) R-7 per inch and foundation foam/polyurea (a premium foundation system) Based in Minnesota, NES is the largest spray foam applicators in the Midwest with 10 mobile units. We can service anywhere in the United States. Completed jobs in - Louisiana: New Orleans, Lockport, Shreveport, and Monroe, Mississippi: Jackson, Iowa: Des Moines, Council Bluffs, and Cedar Rapids, Missouri: Kansas City, Kansas: Kansas City, and varies locations in both Wisconsin and Minnesota. NES gives on-the spot field inspections and a product that refuses to sacrifice quality or performance. We cannot afford to offer our customers anything but the best in insulation products and services. Call today to schedule a free quote!
Owner operated. Also services Sherburne & Stern counties & portions of Chisago county. Also serves Northern MN. Award winning. Additional email - info@lewisinsulation.com. Additional contact name - Nancy Lewis.
"Lewis Insulation came out for work on my home for ice dam issues. Lewis Insulation was to air seal our attic and add insulation. We decided to move forward. Lewis Insulation allegedly performed the work, but unfortunately the ice dam issues persisted. In short, we flushed thousands down the drain by going with Lewis Insulation. Xcel energy performed a home energy audit for us after Lewis Insulation performed the work. The Xcel home energy audit revealed that air sealing was missed during the air sealing process. After confronting Lewis Insulation, the team claimed some of these areas were inaccessible. This includes our furnace flue, which gives off a ton of heat in the winter. For those who may not be aware, this is egregious because of how much heat comes off that pipe. At no point did Lewis Insulation inform me that they were unable to air seal specific areas, including the flue. Lastly, they failed to insulate our basement rim joists properly. In short, we paid to have the team air seal our home and help with ice dams. They failed to eliminate the ice dams, and Xcel suggested we get our home air sealed again. I cannot recommend this company to anyone."
Christopher C on August 2024
Owner operated. Also services Sherburne & Stern counties & portions of Chisago county. Also serves Northern MN. Award winning. Additional email - info@lewisinsulation.com. Additional contact name - Nancy Lewis.
"Lewis Insulation came out for work on my home for ice dam issues. Lewis Insulation was to air seal our attic and add insulation. We decided to move forward. Lewis Insulation allegedly performed the work, but unfortunately the ice dam issues persisted. In short, we flushed thousands down the drain by going with Lewis Insulation. Xcel energy performed a home energy audit for us after Lewis Insulation performed the work. The Xcel home energy audit revealed that air sealing was missed during the air sealing process. After confronting Lewis Insulation, the team claimed some of these areas were inaccessible. This includes our furnace flue, which gives off a ton of heat in the winter. For those who may not be aware, this is egregious because of how much heat comes off that pipe. At no point did Lewis Insulation inform me that they were unable to air seal specific areas, including the flue. Lastly, they failed to insulate our basement rim joists properly. In short, we paid to have the team air seal our home and help with ice dams. They failed to eliminate the ice dams, and Xcel suggested we get our home air sealed again. I cannot recommend this company to anyone."
Christopher C on August 2024
Blown-in insulation offers several advantages over traditional insulation methods. This insulation option is fire-resistant, long-lasting, and more energy-efficient, providing superior thermal regulation for your home. Blown-in insulation fills gaps in walls and hard-to-reach spaces effectively, reduces noise transmission, enhances indoor comfort, and can increase your home's overall resale value.
Installing blown-in insulation in a 1,500-square-foot house costs between $2,625 and $11,250. Your total cost will depend on the type of insulation material you choose, labor rates in your area, and any additional work required, such as mold remediation or electrical adjustments. Hiring an insulation professional ensures proper installation, and labor costs typically range from $40 to $70 per hour. Getting detailed quotes can help you budget accurately for your project.
The cost of spray foam insulation ranges from $0.45 to $1.50 per board foot, while blown-in cellulose insulation costs between $0.60 and $2.30 per square foot. Spray foam insulation is less expensive per unit and offers excellent air sealing properties with higher R-values. Blown-in cellulose, made from recycled materials, is slightly more expensive but provides superior soundproofing and is environmentally friendly. Choosing between the two depends on your specific insulation needs, budget, and preference for eco-friendly materials.
Blown-in insulation is generally cheaper to install than batts. Batt and roll insulation can cost up to $2,500 on average, whereas blown-in insulation often results in cost savings due to lower material and labor expenses. Additionally, blown-in insulation fills gaps and irregular spaces more effectively, improving energy efficiency. Opting for blown-in insulation can save you money while providing better coverage and performance compared to traditional batts.
The best R-value for blown-in insulation depends on the area of your home you're insulating and your specific climate zone. Generally, attics in the U.S. should have an R-value between 30 and 60, with colder regions requiring higher values for optimal energy efficiency. Walls typically need R-values between 13 and 21. Consulting with a professional can help determine the ideal R-value for your insulation project based on local building codes and energy requirements.
Your decision to remove old insulation before installing blown-in insulation depends on the condition of the existing material. If the old insulation is damaged, moldy, or infested with pests, you should remove it to prevent health hazards and ensure effectiveness. If the existing insulation is in good condition, you can often install blown-in insulation over it to increase R-value and improve efficiency. Consulting with a professional insulation installer can help determine the best course of action for your specific situation.