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  • Verified reviews icon43
    Verified insulation services reviews

Top-Rated Insulation pros in Rockville - Updated Nov 2026

Avatar for Gunner Insulation & Roofing
Gunner Insulation & Roofing
4.8(
17
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Rockville, MN and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Ed was very professional, was able to answer my questions, recommended a solution, and was present onsite the day of the job to connect all the dots with the team completing the work. Would highly recommend for your insulation needs"
Attic Extraction
Blown sulation
Closed cell spray foam
Blower door test
Blower door testing

+2

Response time6 hrs
Response rate94%
10 neighbors recently requested a quote
Avatar for RetroGreen Energy
RetroGreen Energy
3.6(
58
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Rockville, MN and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Great customer service & great clean up. We are not living in the house yet, so I could only give 4 stars on the value for the money because not sure how much we will save on energy costs. Very happy with experience."
1890 historic retrofit w/
 1 course of siding rem.
 Brick chimney
2001RetroFoam retrofit
 Holes drilled every 16in

+22

Response time4 days
279 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for JS Custom Insulation LLC
JS Custom Insulation LLC
5.0(
4
)
Spray Foam Insulation - Install

Serving Rockville, MN and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

"We’ve had a great experience working with this company on several projects. They’ve completed batt insulation, spray foam, and blown-in insulation for us, and the quality of their work has always been excellent. Their team is knowledgeable, reliable, easy to work with, and does a great job keeping things clean and professional on the jobsite. We appreciate their attention to detail and consistent communication and would highly recommend them for any insulation needs!"
3 neighbors recently requested a quote
Avatar for M&J Insulation
M&J Insulation
5.0(
1
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade

Serving Rockville, MN and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion we work with you until the job is done. We thrive to take care of all of our clients' unique needs. We are ethical, honest and easy to communicate with. Call us today and you'll be pleased you did. Thank you

Duct work insulation
Duct work insulation
Duct work insulation
Duct work insulation
Duct work insulation

+3

10 neighbors recently requested a quote
Dufner Products, Inc.
4.1(
7
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Rockville, MN and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

With over 20 years of experience, We take pride in my quality craftsmanship. We are owner operated, and believe in building long-term relationships with our clients by delivering honesty along with exceptional work. We pride our company on reliability, great communication, integrity, and customer service. We are experts in our trade and will do our best to keep you as educated as we can on your particular project. Give us a call today! We look forward to working with you!

13 neighbors recently requested a quote
Recommended by100%of homeowners
Spray Foam Insulation System, Inc.
3.5(
11
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Rockville, MN and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"John and his team did amazing work removing the old, insufficient insulation in the attic of my nearly 120 year old home and replacing it with a much higher R-value blow-in insulation. The difference in the look of the attic is phenomenal, and I am confident it will be good for the energy efficiency of our home as well. The entire project took around 8 hours and the team even cleaned up to the point where you could hardly tell any work was done. I found dealing with John and Spray Foam Insulation Systems to be a very pleasant experience. Very honest and forthright, while offering a very fair rate for the work. I highly recommend working with them."
Response time1 day
Recommended by87%of homeowners
Wright Foam, LLC
4.7(
10
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Rockville, MN and surrounding areas

In business since 2013

Free estimates

Small jobs welcome

"The project: insulate the unfinished basement rim joist. The job looks great, very even, uniform depth, no big over-sprays, all cavities sealed and a good cleanup. I recommend them and would use them again."
Response time2 days
Recommended by100%of homeowners
Avatar for Snap Construction Inc
Snap Construction Inc
4.4(
960
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Rockville, MN and surrounding areas

In business since 2007

Free estimates

Warranties offered

"I contacted 3 different contractors and am very satisfied with my choice to use Snap construction for our attic insulation removal, air seal and blown insulation, and building a new attic access. The price was affordable, and included rebates. - Tarik and Alexis were professional, hard working and provided a summary and pictures of their work."
Roof Replacement - Plymouth, MN
Window Replacement - Eden Prairie, MN
Trex Deck - Eagan, MN
Roof replacement in Chanhassen, MN
Owens Corning TruDefinition Duration in Slatestone Gray.
Snap Construction Roof Replacement in Savage, MN - Owens Corning TruDefinition Duration Shingles in Estate Gray.

+165

Recommended by89%of homeowners
Avatar for Century Insulation
Century Insulation
4.4(
54
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Rockville, MN and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I could not be more impressed with Jesse and his team. They were so responsive, so professional, and so incredibly helpful. Great communication throughout. Great work product. Pricing that was very competative and reasonable. The next time I have an insulation need I won't even both to get bids from other shops. I will just use Century. Highly recomend."
Ice Dams
Ventilation
Insulation Installation
Attic Insulation
Response time2 days
Recommended by91%of homeowners
Showing 1-10 of 49
Insulation FAQs, answered by experts

Yes, you can use too much bubble wrap. If you overdo it with the wrapping, it can strain the top of your box and break open the taped seal, risking the chance that the contents of the box could fall out or break. Use enough wrapping to fully cover your item without compromising the security of your box.

Your house may be cold even if the heat is on because of bad insulation, gaps in doors, small holes pulling hot air from the home, or excess humidity. The heater itself might be malfunctioning. For this problem, you’d need to talk to an HVAC pro. If you have a gas heating system (most do) this should be considered an urgent job as natural gas could be leaking in your home.

Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.

The level of insulation is determined by both the material and the thickness of the door. Some garage door materials (such as wood) have natural insulating capabilities, while other materials (such as metal) do not. No matter the material, two-layer and three-layer garage doors have a higher R-value than single-layer garage doors, as insulation is fitted between the panels. 

You should not put fiberglass insulation in basements, since fiberglass is known to trap mold and mold is more commonly grown and produced in basements. You should also avoid placing insulation near water heaters, oil burners, or other hot appliances. For more information about the best and worst places to install insulation, consider hiring an insulation professional.

The Rockville, MN homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.