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Blown in insulation install or upgrade pros in Longmont

Rocky Mountain Insulators
687 Gyrfalcon Ct Unit C
5.00(
1
)
Approved Pro
Rocky Mountain Insulators
687 Gyrfalcon Ct Unit C
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Rocky Mountain Insulators is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Professional and on time."

Homeowner on September 2023

Rocky Mountain Insulators is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Professional and on time."

Homeowner on September 2023


Avatar for Koala Insulation Northern Colorado
Koala Insulation Northern Colorado
418 8th Street SE Unit C2
3.67(
3
)
Approved Pro
Koala Insulation Northern Colorado
418 8th Street SE Unit C2
3.67(
3
)
Approved Pro
Customers say: Quick response
2 years of experience
Free onsite estimate

Koala Insulation of Northern Colorado 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.

"They did not spray evenly leaving several areas not sprayed or barely 1/2. They later said they would have to go over up to 4 times to get everything sprayed the right depth. They said they would cover up everything up but got over spray on walls, windows, curtains, etc. They said they would come back to respray to get the it right but they made such a mess my wife refused to return. We spent days cleaning and there is over spray on things. I expected Koala to spray it once and get it the right depth, cover everything up and leave it up until the job is done. I"

Kenneth C on September 2024

Koala Insulation of Northern Colorado 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.

"They did not spray evenly leaving several areas not sprayed or barely 1/2. They later said they would have to go over up to 4 times to get everything sprayed the right depth. They said they would cover up everything up but got over spray on walls, windows, curtains, etc. They said they would come back to respray to get the it right but they made such a mess my wife refused to return. We spent days cleaning and there is over spray on things. I expected Koala to spray it once and get it the right depth, cover everything up and leave it up until the job is done. I"

Kenneth C on September 2024


L.F. INSULATION LLC
1441 Ruth Dr
5.00(
3
)
Approved Pro
L.F. INSULATION LLC
1441 Ruth Dr
5.00(
3
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

L.F. INSULATION LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I want to recommend LF Insulation for your insulation needs. They specialize in spray foam insulation. Luis and his crew are professional, efficient and very affordable. In addition their attention to cleanliness even impressed my wife. Our exterior sunroom went from needing over 2 hours to warm up to now less than 30 minutes Support a family owned business"

richard l on February 2025

L.F. INSULATION LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"I want to recommend LF Insulation for your insulation needs. They specialize in spray foam insulation. Luis and his crew are professional, efficient and very affordable. In addition their attention to cleanliness even impressed my wife. Our exterior sunroom went from needing over 2 hours to warm up to now less than 30 minutes Support a family owned business"

richard l on February 2025


Avatar for RL Insulation
RL Insulation
2025 North College Avenue, Unit 62
5.00(
9
)
Approved Pro
RL Insulation
2025 North College Avenue, Unit 62
5.00(
9
)
Approved Pro
Customers say: Quick response
12 local quotes requested
4 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Insulation services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"RL Insulation LLC has been an incredible partner on several commercial projects for my company. Their team is reliable, efficient, and consistently delivers high-quality work. They complete projects quickly without sacrificing attention to detail, and their professionalism makes them a pleasure to work with. If you're looking for an insulation company that gets the job done right the first time, I highly recommend RL Insulation LLC!"

Amanda P on March 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Insulation services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"RL Insulation LLC has been an incredible partner on several commercial projects for my company. Their team is reliable, efficient, and consistently delivers high-quality work. They complete projects quickly without sacrificing attention to detail, and their professionalism makes them a pleasure to work with. If you're looking for an insulation company that gets the job done right the first time, I highly recommend RL Insulation LLC!"

Amanda P on March 2025


Eray Mechanical Insulators, Inc.
PO Box 912
5.00(
3
)
Approved Pro
Eray Mechanical Insulators, Inc.
PO Box 912
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

At Eray Mechanical Insulators, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"They were great. We will use them again."

Tom E on February 2019

At Eray Mechanical Insulators, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We are experts, and will always keep you educated about the work process. We look forward to earning your business!

"They were great. We will use them again."

Tom E on February 2019


A Quality Insulation Company
PO Box 1803
4.96(
14
)
Approved Pro
A Quality Insulation Company
PO Box 1803
4.96(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

David Fairbanks has become a staple of professionalism and quality work in insulation for years. With 30 plus years of experience, there is no job too small or too complex for our crew. Call today to schedule an appointment!

"They did a good job and everything was one in a timely manner"

Kacey R on July 2023

David Fairbanks has become a staple of professionalism and quality work in insulation for years. With 30 plus years of experience, there is no job too small or too complex for our crew. Call today to schedule an appointment!

"They did a good job and everything was one in a timely manner"

Kacey R on July 2023


Avatar for Thermal Home Insulation
Thermal Home Insulation
4270 South Deframe Street
4.98(
25
)
Approved Pro
Thermal Home Insulation
4270 South Deframe Street
4.98(
25
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
17 local quotes requested

Thermal Home Insulation has been serving Colorado homeowners since 1972 with the highest level of experience, expertise, quality workmanship, and customer service. Every home is unique and every homeowner has unique demands - we strive to make all our customers happy. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a detailed & professional manner. Our reputation is based on service, safety, quality, and most importantly: results - regardless of how large or small your job is. Thermal Home Insulation uniquely provides you with our 3-Step Perfect Attic solution that can cut your A/C bills in half - and save you a ton in the winter too. And since energy bills are skyrocketing here in Colorado: this can add significant value to your home. Lower operating costs can significantly increase your homes value. Everyone likes saving money and we do our best to maximize your energy efficiency & savings.

"They were on time and a job well done."

Doug S on May 2024

Thermal Home Insulation has been serving Colorado homeowners since 1972 with the highest level of experience, expertise, quality workmanship, and customer service. Every home is unique and every homeowner has unique demands - we strive to make all our customers happy. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a detailed & professional manner. Our reputation is based on service, safety, quality, and most importantly: results - regardless of how large or small your job is. Thermal Home Insulation uniquely provides you with our 3-Step Perfect Attic solution that can cut your A/C bills in half - and save you a ton in the winter too. And since energy bills are skyrocketing here in Colorado: this can add significant value to your home. Lower operating costs can significantly increase your homes value. Everyone likes saving money and we do our best to maximize your energy efficiency & savings.

"They were on time and a job well done."

Doug S on May 2024


Avatar for USA Insulation Boulder-Fort Collins
USA Insulation Boulder-Fort Collins
3989 South Valley Drive, Unit B
5.00(
1
)
Approved Pro
USA Insulation Boulder-Fort Collins
3989 South Valley Drive, Unit B
5.00(
1
)
Approved Pro
18 local quotes requested
2 years of experience

USA Insulation provides whole-home insulation solutions nationwide with our proprietary USA Premium Foam Insulation. Our injection foam provides incredible benefits by creating a solid barrier between your home and the outside environment.

USA Insulation provides whole-home insulation solutions nationwide with our proprietary USA Premium Foam Insulation. Our injection foam provides incredible benefits by creating a solid barrier between your home and the outside environment.


Bestway Insulation, LLC
10855 Empire Road
New on HomeAdvisorNew on Angi
Approved Pro
Bestway Insulation, LLC
10855 Empire Road
New on AngiNew on HomeAdvisor
Approved Pro
16 local quotes requested
49 years of experience

Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing. Where most companies are happing getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2012

Home Pro of the Year in 2010 (Service Magic)Home Performance Contractor of the Year for the last 8 out of 10 years. We are a company that specializes in re-insulating existing homes by using blown-in insulation and getting huge reductions on our customers energy bills by Air Sealing. Where most companies are happing getting 10%energy reductions on their clients homes, we want 50% or higher. Our family has owned and operated Bestway Insulation, LLC, in Colorado since 1976. Born & raised CO. Top Rebate producer for air sealing in 2009 - 2012


Avatar for Energy Saver Insulation LLC
Energy Saver Insulation LLC
1664 Windler St
4.77(
48
)
Approved Pro
Energy Saver Insulation LLC
1664 Windler St
4.77(
48
)
Approved Pro
Customers say: Quick response
13 local quotes requested
7 years of experience

Welcome to Energy Saver Insulation, we have over 26 years of experience! Proudly servicing all of the greater Denver area! Owner and operator, Felipe, takes great pride in his professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today! You will not be disappointed.

"The company did a great job in my home. The customer service was great, they kept me updated through the whole process. Manuel was very professional and his crews got the job done in a timely manner."

Josh P on May 2025

Welcome to Energy Saver Insulation, we have over 26 years of experience! Proudly servicing all of the greater Denver area! Owner and operator, Felipe, takes great pride in his professionalism and customer satisfaction. For fast, reliable, and efficient service give us a call today! You will not be disappointed.

"The company did a great job in my home. The customer service was great, they kept me updated through the whole process. Manuel was very professional and his crews got the job done in a timely manner."

Josh P on May 2025

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FAQs for blown in insulation install or upgrade projects in Longmont, CO

Many major home improvement retailers offer free machine rentals when you purchase a minimum quantity of insulation material, often 20 to 30 bags. These promotions vary by location and season, so calling ahead to confirm current offers is recommended. Be sure to understand any time limitations that apply to these free rentals, as they may restrict you to a specific return window, often 24 hours from checkout.

For most residential attics under 1,500 square feet, a standard consumer-grade blower available at rental centers will provide adequate performance. Larger spaces or projects requiring greater insulation depth may benefit from higher-capacity equipment. 

When consulting with the rental provider, mention your attic's square footage, desired insulation depth, and accessibility conditions to receive appropriate equipment recommendations for your specific situation.

DIY installation saves between $160 and $560 in labor costs for standard attic installations requiring four to eight hours of work. These savings must be weighed against equipment rental fees of $50 to $210 per day and the value of your personal time. For more complex installations like wall insulation, which can require 20+ hours of professional labor (costing $800 or more), the potential savings increase substantially, though so does the project complexity.

While there's a learning curve, most homeowners can master the basics with some practice. Key techniques include maintaining consistent material flow into the hopper, controlling hose direction effectively, and preventing clogs in the system. 

Starting in less visible areas allows you to refine your technique before moving to more prominent spaces. Thoroughly reviewing the equipment manual and watching instructional videos beforehand significantly improves first-time success rates.

Standard rental periods provide 24 hours of use, though specific terms vary by provider. Some locations calculate this as a calendar day, while others track a full 24-hour period from checkout time. Clarify the exact return deadline when renting, and plan your project timeline accordingly. Late returns often incur additional daily charges at the full rental rate, which can quickly increase your project cost if not managed carefully.

The Longmont, CO homeowners’ guide to blown in insulation install or upgrades
From average costs to expert advice, get all the answers you need to get your job done.
new spray foam insulation being applied in attic
Apr 28, 2025
Apr 28, 2025
Spray foam insulation costs depend on the area size, foam type and thickness, and how the pro installs it. We break down the cost to help you budget.
room in home with sound proofing panels on the wall
Apr 23, 2025
Apr 23, 2025
The cost to soundproof a room depends mainly on room size and the material you use. This guide can help you plan your project budget.
Wooden planks with building foam
Apr 16, 2025
Apr 16, 2025
Create a budget for new insulation using this cost guide, featuring the most important price factors to consider.
Worker installing new home roof insulation
Mar 31, 2025
Mar 31, 2025
Budget for radiant barrier costs based on factors such as foil type, attic size, material quality, ventilation type, labor, and more.
A worker spraying blown fiberglass insulation between attic trusses
Feb 11, 2025
Feb 11, 2025
Check out the cost to install blown-in insulation based on factors like R-value, insulation type, local labor rates, and more.
Batt and roll insulation installed by professional in protective gear
Feb 14, 2025
Feb 14, 2025
Our guide explains how much you should budget for insulation installation to help keep your home comfortable and your energy bills lower.
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