Business Details
20 Years
experience
Expert Insulation Solutions for Knoxville Homes
RetroFoam of East Tennessee has been delivering premium insulation solutions to homeowners in Knox County, TN and surrounding areas since 2006. As a licensed general contractor with over 18 years of industry experience, our locally rooted team approaches every project with the meticulous care of working on a family member's home. We specialize in advanced RetroFoam injection foam, spray foam, sound attenuation, attic, and crawlspace insulation systems that enhance energy efficiency while reducing utility costs. Our team maintains preferred contractor status with Owens Corning and certification through TVA EnergyRight and Andersen Windows & Doors, ensuring adherence to the highest industry standards.We prioritize client education over sales tactics, offering free consultations and guaranteed workmanship through our partnership with GES Custom Remodel. With membership in the Greater Knoxville Home Builders Association and comprehensive liability insurance coverage, we combine technical expertise with personalized service to deliver lasting home weatherization solutions.
Services
Injection Foam
SprayFoam Insulation
Sound Attenuation
Attic Insulation
Crawlspace Insulation
Details
- Year established: 2006
Highlights and features
- 18+ years of local insulation expertise since 2006
- Owens Corning preferred contractor with certified installers
- TVA EnergyRight program certification
- Fully insured with liability coverage
- Partnership with GES Custom Remodel for comprehensive solutions
Associations and certifications
- Owens Corning Preferred Contractor
- TVA EnergyRight Contractor
- Andersen Certified Contractor
- Greater Knoxville Home Builders Association
What people say
Saved 600 dollars
Super nice
Extremely respectful
Outstanding job
Highly recommend
Services
Injection Foam
RetroFoam injection foam creates seamless thermal barriers in existing walls without major renovations. This non-expanding open-cell foam achieves R16 insulation value when installed, reducing heat transfer by up to 95% while maintaining structural integrity. Ideal for homes with various siding types including vinyl, aluminum, brick, and wood.
SprayFoam Insulation
Our closed-cell spray foam forms airtight insulation layers in attics and crawlspaces. With superior R-value per inch compared to traditional materials, this solution prevents air leakage while resisting moisture infiltration. Recommended for both new construction and retrofit applications requiring maximum energy efficiency.
Sound Attenuation
Specialized foam insulation reduces airborne noise transmission between rooms and floors. This service enhances acoustic comfort in multi-family dwellings and homes near busy areas. The material dampens sound waves while maintaining thermal performance benefits.
Attic Insulation
Comprehensive attic insulation solutions prevent energy loss through the building envelope. Using blown-in or spray foam methods, we create thermal barriers that maintain consistent indoor temperatures while reducing HVAC workload. Includes proper ventilation maintenance to prevent moisture issues.
Crawlspace Insulation
Our crawlspace insulation systems control temperature and humidity in underfloor areas. By sealing and insulating these spaces, we prevent cold floors, reduce energy consumption, and mitigate moisture-related problems like mold growth. Combines insulation installation with vapor barrier application.
Questions
What types of insulation do you offer?
We specialize in RetroFoam injection foam, spray foam, sound attenuation, attic, and crawlspace insulation systems tailored to existing homes.
Can insulation be installed in existing homes?
Yes, our RetroFoam injection system works on existing walls without requiring full remodels, suitable for various siding types.
How much can I save on energy bills?
Customers typically see 40-60% reductions in heating/cooling costs, with some recovering installation costs within 2-3 years.
Do you serve areas outside Knoxville?
We serve Knox County and surrounding areas including Oak Ridge, Farragut, and Morristown in East Tennessee.
What's included in a free consultation?
Our consultation includes assessment of your current insulation, energy efficiency recommendations, and customized solution proposals.
Is financing available for installation?
Yes, we offer financing options to make energy-efficient upgrades accessible for homeowners.
Reviews (5)
Landon Shewmake
Dec 30, 2021
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I enjoyed working with Eddie during the sales process as he was extremely knowledgeable about building envelopes and how to properly insulate a home. Once the job started, Robert, Nathan, and Jacob showed up on time, worked hard, cleaned at the end of the day, and were a pleasure to work with. I would highly recommend Retrofoam if you are looking to insulate your home or business.
Trent Maxfeldt
Dec 28, 2021
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I've known of GES and Eddie Sanford's excellent reputation from friend's positive experiences. Although I only needed a small amount of foam insulation, I contacted Eddie for the job. It's been a huge improvement since adding the foam. It's been a few weeks with mild temperatures so hard to tell if my heat and air bill is less, BUT I know there will be! How do I know this? Because I can't hear the trash truck anymore at 6am! I highly recommend the retrofoam system with Eddie and his crew installing it!
Jeep Adventure
Dec 23, 2021
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Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Very fast and fluid crew of men, Robert,George and Jacob they did retro foam and spray foam for my family and it's only been a month but my electric bill has dropped at least 30 percent. WE WENT FROM NO INSULATION TO FULL. THE METHOD WAS PRETTY COOL TO WATCH AS WELL I RECOMMEND 100%
Services:Remodelling,Drywall repair
Very fast and fluid crew of men, Robert,George and Jacob they did retro foam and spray foam for my family and it's only been a month but my electric bill has dropped at least 30 percent. WE WENT FROM NO INSULATION TO FULL. THE METHOD WAS PRETTY COOL TO WATCH AS WELL I RECOMMEND 100%
Services:Remodelling,Drywall repair
Bobby Jones
Feb 24, 2021
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I highly recommend Retrofoam; it works. If you have an older home and need to get it insulated, you have two options.
1. Remove the walls and add insulation.
2. Retrofoam
We chose retro foam and are very pleased with our decision.
Pros:
Our home gets warm faster. Our home remains warm longer.
Rooms that were once colder than others are the same temperature as the rest of the house. Wind drafts through the house eliminated. Wind drafts around windows eliminated. Outside noise, reduced significantly, I mean reduced by a lot. We can now sleep with no white noise. Amazing. Overall improvement
1. Remove the walls and add insulation.
2. Retrofoam
We chose retro foam and are very pleased with our decision.
Pros:
Our home gets warm faster. Our home remains warm longer.
Rooms that were once colder than others are the same temperature as the rest of the house. Wind drafts through the house eliminated. Wind drafts around windows eliminated. Outside noise, reduced significantly, I mean reduced by a lot. We can now sleep with no white noise. Amazing. Overall improvement
Stephanie Hiller
Nov 16, 2020
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I had the exterior walls foamed first. The salesman was very patient, understanding, and helpful answering my many questions. Due to the distance, most of our communication was via phone, email, and text; all of which were prompt. The installation was efficient and methodical. They took their time to do it right. I got many explanations of how and why they were doing things. It took a little longer than expected due to the complexity of the project but I noticed a difference as soon as the walls were done. Quieter. The furnace didn't kick on as long or as often. I'm happy and it's only been 3 days
