Give your home controlled air flow movement with an air sealing upgrade and experience savings, good health, and home value!

Are you experiencing uncomfortable room temperatures, rising heating and cooling costs, or drafty areas? Air sealing is essential to having an energy efficient and comfortable home.

The experts from Koala Insulation of Boulder will inspect your attic for gaps or holes left by electricians, builders or spaces cause by damage, and provide you with a complete air sealing service. Average homes have gaps or spaces that allow air to escape having a huge impact on your Boulder home’s energy efficiency.

Once the gaps have been identified, our local experienced technicians will seal hidden air leaks, stopping unwanted air movement, moisture build up and increasing your home’s overall comfort.

Air sealing combined with the correct insulation is the most impactful thing that you can do to improve energy efficiency and home comfort.

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Ready to stop those drafts and reduce your budget breaking energy bills?

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Comfortable-person sealing

We’ll make your space comfortable

  • air-filter sealing
    Stop Air Leaks & have cleaner air

    Removing your current insulation and replacing with new fresh insulation will give you cleaner air in your home. Let us give you fresh, pure air!

  • power-plug sealing
    Lower energy bills

    According to the department of energy, by air sealing uncontrolled air leaks, you can save 10-20% on your heating and colling bills. Let us give you reduced monthly costs!

  • carbon-footprint sealing
    Reduced carbon footprint

    By reducing energy waste, you're helping the environment. Let us help you do your part for a brighter tomorrow!

  • cost sealing
    Pays for itself over time

    By saving on your electricity bill each month, your insulation upgrade will pay for itself over time and you’ll save money for years to come. Let us give you a return on your investment!

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Common Air Sealing Applications

Residential2 sealing

Residential

  • Attic
  • Exposed plumbing pipes
  • Garage
  • HVAC ductwork and vents
  • Attic Access doors and hatches
  • Recessed lights and ceiling fans
  • Electrical boxes and wiring entry points
  • Basement
  • Recessed can lights

Why Choose Koala?

  • Prompt

    We get there on time, every time.

  • Clean

    No mess left behind! We clean up after ourselves.

  • Experienced

    We have 15+ years of experience in construction and home services.

  • Knowledgeable

    We’ll help you choose the right insulation for your project.

  • warrantyr Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder
  • Boulder

See what our satisfied customers have to say about our air sealing & insulation service!

Just had David and his team do blown-in in our house and the service and install was the best. They were neat clean and right away notice a huge difference in our electric bill along with overhead noise from outside from airplanes....so happy with this investment to our home!

Lisa L.
Boulder

The Koala crew did a great job. The insulation job was promptly scheduled and reasonably priced. The additional insulation should reduce my electric bill. My house needed missing insulation to be reinstalled. Jeff, and the crew were professional and super nice to deal with. Thank you so very much.

Sarah J.
Broomfield

Great experience! Connor showed up on time for our consultation and he was extremely personable and real knowledgeable about all of the different insulation solutions Koala has available. I thought I would drive him crazy with all my questions, but he was patient and was able to give answers that really made sense. I decided on the spray foam, and I could not be happier with the results. I feel like I live inside a giant Yeti cooler now! I expected the foam to make a difference, but I had no idea just how effective it could be. On top of controlling the temperature, the house is a lot quieter now, which I hadn't considered when I decided to go this route. Don't hesitate to have Connor and his team out to your place. My only regret is not making this decision sooner. Thanks so much guys!

Ryan C.
Brighton

Koala did two great jobs for us. Very professional, great communication and service.

Steve B.
Denver

Very pleased. Would recommend to anyone that needs a good company for blown in insulation. Very professional. Arrived on time. Cleaned up afterwards. Folks were courteous and answered all my questions.

Mary B.
Golden

The Team at Koala Insulation provided an amazing service and deal for my attic insulation job which added additional R19 to my existing attic insulation. The team was on time and got to work immediately.

Tom M.
Boulder
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Ready to book your free insulation evaluation?

We have 3 convienant ways for you to get in touch

(720) 738-7825
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Book your appointment online

LEARN ABOUT air sealing!

One of the best ways to get the biggest return on your air sealing investment is to combine it with an insulation upgrade! Learn more about types of insulation that we use in our videos below!

Why air sealing is important

Insulation alone is not going to be as effective as with combining it with air sealing. To deliver the optimal improved energy efficiency, air sealing will act as a vapor barrier and stop any air from penetrating into your home.

By sealing all gaps and holes, it creates an air barrier, blocking air from passing through walls and the ceiling into the attic or outside air in filtrating into your home.

A properly sealed home will not only stop air leakage but will also keep water out, keeping your insulation in top condition. It also contributes to increased comfort, improved indoor quality, lower utility bills and controls moisture.

Koala insulation experts offer custom solutions to provide you with the right solutions for your specific needs. We offer air sealing services along with batt, spray foam and blown-in insulation products to guard against heat loss and moisture related problems.

CELLULOSE

Cellulose consists of fibers made from recycled newspaper, cardboard, or wood and is made with or without binders. Cellulose is a very common type of blown-in insulation as it is made from recycled materials and is chemically treated to resist pests, mold, and fire. Boric acid is the primary chemical used to treat Cellulose insulation and is found naturally in seawater, fruits, and plants.

FIBERGLASS

Fiberglass is made from plastic, glass, and other raw materials that are melted and spun into fibers that resemble the texture of wool. Fiberglass insulation has moisture and fire-resistant properties. Because fiberglass is made from sand and glass, it is naturally non-combustible. Fiberglass has significant recycled content with some loose-fill products containing up to 80% recycled glass.

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Read More of Our Reviews

Richard G

Koala installed all the foam insulation in our new construction residence.Before awarding the project we asked them to come over and do a walk through with the person who was going to actually do the work, Bernie. For us this stage of insulation was primarily air sealing the upper and lower rims, the stud bays, and the lid, including a 900 sf garage.. We needed to be sure that Bernie was confident about getting the foam to the parts of the construction that were difficult to reach, mainly in the basement and large crawl space. A couple of spots were missed and we called them back: they took care of the problem areas the next day. The house has a whole new feel. We'll follow up in a month or so self installing fiberglass batts. If the foam insulation is not done properly there is no way to really recover from those errors. Prior to the spray work starting he Koala crew covered all the windows and other house surfaces so foam did not spill on them, and they cleaned up well after the job was completed. Be careful about choosing your insulation contractor. We were extremely pleased working with the Koala Team. We recommend them highly.

Longmont, Boulder County

Pinnacle Disaster & Recovery Services

We have worked with several insulation companies over the past few months. Koala is extremely professional, reliable and dependable. They stand by their work and are experts at what they do. I highly recommend them.

Boulder County

Green Gable Roofing

We are a company as well and we needed an insulation company to work with. John and Chris have been amazing to work with. They attended to our customers efficiently and quickly. We will defiantly be using them for all our insulation projects and will be referring out to anyone who needs insulation removal and replacement.

Boulder County

Steven F

Koala did what they said they would do. The team came on time and worked hard for long hours to remove and replace the insulation. Really happy with them.

Louisville, CO

Peter P

We have worked with several insulation companies over the past few months. Koala is extremely professional, reliable and dependable. They stand by their work and are experts at what they do. I highly recommend them.

Louisville

Loraine B

We used Koala to replace our insulation after the Marshall Fire. They are exceptional, knowledgeable when answering questions and very personable. They treat your home as if it's their own and clean up is impeccable. I highly recommend Koala"

Louisville

Dennis Z

"They were professional, honest, very communicative, did a great job, and finished ahead of schedule. I would hire them again."

Louisville 80027

Brian S

Although we had a small hiccup with the insulation machine, the installers were very courteous, provided excellent customer service and fixed the issue quickly; they made sure I was happy with the work before leaving.

I would use them again and would recommend to others as well.

Golden

Greg M

Chris and his team were very professional. Great communication before hand to all my questions. Chris was on-time for the estimate and the actual work. His team were professional, clean, polite and considerate. They blew insulation in the ceiling, added 2 solar attic fans and also crawled under our newly enclosed deck with 20" of clearance and insulated with batting between all the joists. When finished they cleaned up and left no trace of being there.

Thanks Koala"

Thornton

Alex E

The Koala team did a great job installing insulation at my house"

Boulder, CO

Sergey

Koala installed attic insulation for me. Chris worked with me on the details of the specific job i wanted to do for my house. The crew was very professional, clean, and fast. Koala is a new company and they are working hard to earn their business. While they are not certified for the county and xcell rebates. Their prices and scope of work provides similar or better prices compared to companies that need to jump through all the hoops to qualify for a couple hundred dollars of county rebates

Boulder

Ed

Great service team! Would certainly recommend Koala for your attic.

Jefferson

Dennis

These guys are Pro's! Great Service, Price & Prompt

Longmont, Boulder County

Stan

John & Chris were very responsive, know the business and did quality work. Went above & beyond by sealing unforeseen gaps PLUS adding a cool shield over our attic access to provide additional insulation."

Erie, Weld County

Jacob

Koala Insulation of Boulder installed blow-in insulation in my attic space in order to bring it up to code. They were responsive and professional throughout the process. Highly recommended."

Boulder

Sharon

Excellent service very happy with the presentation.

Thank You

Sharon & Willie"

Brighton, Adams & Weld County

Rich

Easy to work with, responsive, knowledgeable. Reached out about quoting one solution for my garage and they recommended a different one that was a better fit for the job and under budget. Would recommend in the future."

Denver

Brandon

John and his team were prompt and professional. They arrived to my home to look at my attic and provide a quote and returned a week later to complete the job as scheduled. I highly recommend contacting them for your insulation needs!""

Brighton, Adams & Weld County

Karen

I highly recommend this company, They are professional and honest. John did an inspection of the insulation in my attic, which I suspected was lacking. There were rooms in the house that were overly hot in the summer and cold in the winter. After the addition of the insulation and a solar attic fan I have noticed a significant difference in the house and couldn't be happier."

Longmont, Boulder County

Stephen

Koala Insulation of Boulder were incredibly professional from the estimate all the way through the completion of the project. The quality of work was excellent and the crew did a great job of cleaning up afterwards. I would highly recommend."

Broomfield County

Ande

John and team were responsive, professional, and friendly. I called John and team and they were one of the only companies I could get a hold of, despite leaving messages with several competitors. John usually handles projects much bigger than the my small insulation project, but he provided a fair quote compared to competitors, and because of his responsiveness I offered the job to he and his team. They scheduled a time and day and showed up on time. Through my own communication error, they were unable to get access to the property and had no way to reach me other than email. They ended up having to leave and when I called them up to explain and apologize, John was understanding, though I would have expected to never hear from them again because of my miscommunication. They agreed to revisit the site in the SAME week. They ended up not being able to complete the project because of structural obstructions. They tried to blow insulation for two hours and they did not charge me since they were unable to successfully fill the space. They were incredibly kind, professional, and honest. I would hire them again in a heartbeat. Many thanks John and team for the five star service!!!"

Boulder

We Provide Insulation Services to the Following Boulder Areas

ELDORADO SPRINGS, BOULDER, JAMESTOWN, WARD, LONGMONT, LYONS, NIWOT, ARVADA, BROOMFIELD, LOUISVILLE, WESTMINSTER, LAFAYETTE, DACONO, ERIE, FREDERICK, BRIGHTON, FORT LUPTON, LITTLETON, DENVER, GOLDEN, IDLEDALE, INDIAN HILLS, KITTREDGE, MORRISON

Counties Served

BOULDER, JEFFERSON, BROOMFIELD, ADAMS, WELD

Zip Code

80025, 80301, 80302, 80303, 80304, 80305, 80309, 80455, 80481, 80501, 80503, 80540, 80544, 80005, 80007, 80020, 80021, 80027, 80031, 80023, 80026, 80514, 80516, 80530, 80601, 80602, 80603, 80621, 80127, 80214, 80215, 80228, 80401, 80403, 80419, 80453, 80454, 80457, 80465

We Look Forward To Hearing From You

We make the insulation process simple & easy.

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