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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon185
    Verified insulation services reviews

Top-Rated Insulation pros in Woodstock - Updated Nov 2026

Avatar for Paragon Insulation
Paragon Insulation
4.8(
64
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Woodstock, IL and surrounding areas

Approved

In business since 1997

Free estimates

Warranties offered

"My attic was poorly ventilated — damp, musty, and overdue for attention. After deciding to bring in a professional, Randy came out to my home, thoroughly assessed the problem areas, and put together a detailed quote on the spot. The scope of work included removal of the existing insulation, air sealing around all attic entry points, sanitizing, air baffle installation, and installation of new Weather Blanket cellulose insulation. The new cellulose achieves an R-value that meets or exceeds Illinois code requirements. I couldn't be happier with the results. I've already noticed a meaningful improvement in temperature consistency and overall comfort throughout my home. If you're looking for a trustworthy, professional insulation contractor, I wouldn't hesitate to recommend Paragon Insulation & Services."
Additional Photos
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+24

Response time4 days
Response rate100%
5 neighbors recently requested a quote
Avatar for ARC INSULATION
ARC INSULATION
4.6(
96
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Woodstock, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Warranties offered

"Arc was great from the start. We were given a complimentary consultation by Steve Garrett, who gave us a detailed explanation on the issues we may have with our attic insulation and why our energy bills may be so high. We chose to have our attic insulated and our ducts sealed. Our ducts saw a 93.5% improvement, and we immediately noticed the difference in the temperature of our second floor. Even during this prolonged heat wave, we have been able to keep our temperatures much lower than before. The attic insulation has also decreased the temperatures of the upstairs. It has been a remarkable difference. We are fully expecting our house to be more comfortable in the winter as well. Steve is honest and reliable and we would not hesitate to recommend Arc to anyone who needs insulation and duct work."
Air Duct Cleaning Project
Additional Photos
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Additional Photos

+30

3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Attic Air
Attic Air
4.9(
257
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Woodstock, IL and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"It went really well. Robert Carroll really knows his stuff. Hire this guy. I say that without reservation of any kind. Don't look any further, believe me, I did. This is the smartest guy. He is honest, dependable, offers fair pricing, and his team can do all the work. I got several estimates from A+ rated insulation companies, but Robert was more knowledgeable than the other companies. He was the only one to point out that my soffits were not vented. Apparently, my house was built on the day no one was inspecting. The builder never cut open the soffits. That meant there was zero airflow going through my attic. The attic fan could run all day, but without air to move, it would not do any good. Only Robert noticed this and offered a solution to fix the problem! I asked some of the other A+ companies if they would vent the soffits and they all said they don't do that work, but they would be happy to add more insulation, which would not fix the problem if the attic was not vented."
Response time2 days
3 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Elite Insulators
Elite Insulators
4.8(
21
)
Injection Insulation - InstallSpray Foam Insulation - Install

Serving Woodstock, IL and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Kyle wen above and beyond my expectations! Very professional and knowledgeable! Every business should have someone like Kyle. I would highly recommend Elite Insulators. I have other projects coming up and he is already hired! Lol! THANK YOU Kyle!!"
Cathedral Ceilings
Ceiling/Wall
Walls
Amish Ice Box
Amish Ice Box

+56

Response time2 days
Recommended by57%of homeowners
Avatar for Daniel Nagel
Daniel Nagel
4.6(
42
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Woodstock, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Dan did a great job insulating my attic. He did exactly what he said he would do, on time and at the quoted cost. He was very thorough in his work, applied foam sealant, installed baffles, installed bathroom vent access thru roof and installed blow in insulation. Nice guy as well. I'd hire him again."
Response time1 day
Recommended by100%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
265
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Woodstock, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Home Genius Exteriors is amazing! I have been impressed throughout the whole process with their high level of professionalism and depth of expertise. Every person I have met throughout my project has been a dream! I honestly believe they care as much about my home and doing what is best for me and my family as I do. I highly recommend! Long story about my incredible experience so far below: Our roof and siding were older, losing grit and fading, and we had lost some shingles in a storm. After having another company out that was okay/average, I did some research and read a ton of reviews. Home Genius Exteriors really stood out from the rest, so we decided to setup an appointment. Our Home Remodeling Expert was named John and he was the best! He did a complete and thorough inspection of our home inside and out (including using a drone). He even went up into our attic mid-summer to see what was going on under the roof. He then took us though all of the photos and videos and explained what was happening. He also listened to what we were hoping to improve. He provided multiple options and recommendations and answered all of our questions and concerns. Next thing I knew we were creating models of our actual home and toggling between different colors, styles, materials, etc. John was extremely patient as it took a while for us to get it dialed in just right. He wrote up our project, helped to find some discounts and areas we could save money to stay within our budget without compromising the end result we were now in love with. We decided to get a roof, siding, windows, patio door, and gutter replacement to completely makeover and modernize our home. The next day we were contacted by our Home Genius project coordinators Tiffany and Beth to schedule our roof install and to have a technician out to remeasure and confirm our windows/patio door order. I figured it would be a while to get on the schedule...They blew me away. Measurement appointment tomorrow and roof install the next day! Our measurement technician was named Frank and he arrived on time, took off his shoes without being asked (love that), and his attention to detail was impeccable. He even went as far as to reconfirm our order and to walk us through what to expect with the windows and patio door install. That afternoon Brandon, our Home Genius Project Manager for the roof install, called to introduce himself and provide a detailed timeline for the day of the install and to see if we had any questions. He also informed us when the dumpster and materials would arrive that evening. The next morning Brandon and the roofing installation crew showed up at 7:00 and began prepping our home, including hanging tarps from the roof to protect our landscaping and even moving all of our deck & patio furniture out into the yard for protection. Then the work really started - the crew was incredibly fast and efficient! They had all of the old roof off in less than 3hrs. By lunch they were done laying the new underlayment and starting to put on shingles. They worked non-stop. The roof was finished by 8:00 and what I really appreciate, is they spent almost an hour cleaning up the jobsite and even using magnets to make sure no nails were left behind in the grass or landscaping. Brandon was terrific throughout the project. He provided detailed explanations of what was happening, provided updates on timing and progress, answered all of our questions, and made sure that the installation was perfect. He even came by the next day to do a second final walkthrough to make sure nothing was missed since it was getting dark the night before. Roof looks amazing and we could not be happier! Can not wait for the next stages of our home transformation!"
Windows
Windows
Windows
Windows
Windows

+58

Recommended by87%of homeowners
Avatar for GreenLink Energy Solutions, Inc.
GreenLink Energy Solutions, Inc.
4.7(
60
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Woodstock, IL and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Greenlink was an absolute breeze to work with. Estimating was fast and friendly, the work was very well done, the staff at our site were super professional, and the price was phenomenal. VERY highly recommend then for your next insulation project!"
Infrared Light Switch
Combustion Test
Water Heater Combustion Test
Cellulose Insulation Installation
Air Sealing Can Lights

+12

Response time1 day
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Hawx Insulation- Chicago
Hawx Insulation- Chicago
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Woodstock, IL and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

8 neighbors recently requested a quote
Recommended by75%of homeowners
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Insulation FAQs, answered by experts

Actually, condensation can mean that your windows are more energy efficient because the seal keeps cold air out and warm air in. In some cases, windows with poor seals can lead to more condensation, but they may allow the cold and warm air to mix and reduce condensation. If you’re worried about whether or not your windows are properly insulated, have a pro assess them.

Insulation can be easy to install, depending on the condition of your walls, but there are many safety considerations and potential challenges involved. For example, most types of insulation are made from materials that can cause irritation if inhaled or if they come into contact with your skin. Additionally, installing insulation incorrectly can actually make moisture issues in your home worse.

Yes, it is possible to have too much insulation, which can have detrimental effects. While more insulation might seem better for energy efficiency, a home needs to "breathe" or ventilate to release moisture that accumulates inside. Over-insulating can seal a house too tightly, trapping water vapor and leading to several problems, including mold, mildew, and condensation. Homes in warm, humid climates are particularly susceptible to mold, while those in colder climates can experience condensation from temperature fluctuations. Additionally, adding more insulation than the recommended amount for your climate may not provide recoverable energy savings. To avoid these issues, consult a professional insulation contractor who can determine the optimal amount of insulation for your home.

Yes, including recycled denim and cellulose from natural fibers.

Minimal, mainly occasional checks for damage or mold in extreme conditions.

The Woodstock, IL homeowners’ guide to insulation services

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