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Find Batt, rolled or reflective insulation install or upgrade pros in Seattle

Avatar for Lake Atitlan Insulation LLC

Lake Atitlan Insulation LLC

5.00(
12
)
Approved Pro

Lake Atitlan Insulation LLC

5.00(
12
)
Approved Pro
Customers say: Quick response
33 local quotes requested
4 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I?m very happy with the work Lake Atitlan Insulation did. First, they cleaned my entire crawl space. The next day, a plumber from another company I hired fixed the broken pipes. On the final day, the team came back to install new plastic, do the Rodent Exclusion, and add new insulation. Everything was done smoothly and professionally. My crawl space is now clean and protected, and I can feel the difference in my home. Highly recommended!"

ani z on October 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I?m very happy with the work Lake Atitlan Insulation did. First, they cleaned my entire crawl space. The next day, a plumber from another company I hired fixed the broken pipes. On the final day, the team came back to install new plastic, do the Rodent Exclusion, and add new insulation. Everything was done smoothly and professionally. My crawl space is now clean and protected, and I can feel the difference in my home. Highly recommended!"

ani z on October 2025


Avatar for Insulation Co., LLC - Removal & Clean Outs

Insulation Co., LLC - Removal & Clean Outs

4.96(
171
)
Approved Pro

Insulation Co., LLC - Removal & Clean Outs

4.96(
171
)
Approved Pro
Super Service Award
Customers say: True professional
16 years of experience
Free onsite estimate

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"Very easy to work with. Crews were efficient, conscientious and polite. They took photos of their work and took the time to explain what they were doing. Overall I was very pleased with the customer service and result."

Eric D on November 2025

Insulation Co. LLC has been Western Washington’s trusted attic and crawl space specialist since 2008. Based in Seattle, we provide far more than insulation—we offer complete attic and crawl space restoration. Our services include insulation removal and replacement, full cleanouts, mold remediation, duct insulation and sealing, rodent exclusion and proofing, vapor barrier installation, crawl space door upgrades, and comprehensive air sealing. For moisture issues, we also install sump pumps and French drains. We even offer specialized crawl space services for manufactured homes. Whatever your home needs beneath or above, our team ensures a clean, healthy, energy-efficient space built to last.

"Very easy to work with. Crews were efficient, conscientious and polite. They took photos of their work and took the time to explain what they were doing. Overall I was very pleased with the customer service and result."

Eric D on November 2025


Avatar for Stone Insulation Service

Stone Insulation Service

5.00(
2
)
Approved Pro

Stone Insulation Service

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Installed Batt insulation in my garage ceiling, did a good job."

Ray F on August 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Installed Batt insulation in my garage ceiling, did a good job."

Ray F on August 2024


We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!


Avatar for Attic Doctor LLC

Attic Doctor LLC

5.00(
15
)
Approved Pro

Attic Doctor LLC

5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
150 local quotes requested
2 years of experience

Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!

"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "

Anja C on July 2025

Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!

"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "

Anja C on July 2025


Avatar for WA EVERGREEN INSULATION LLC

WA EVERGREEN INSULATION LLC

5.00(
5
)
Approved Pro

WA EVERGREEN INSULATION LLC

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
70 local quotes requested

EVERGREEN INSULATION is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"The estimator was great, and we have already referred Evergreen twice!"

Sydney I on October 2024

EVERGREEN INSULATION is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 12 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"The estimator was great, and we have already referred Evergreen twice!"

Sydney I on October 2024


Avatar for Insulation Pro Inc.

Insulation Pro Inc.

5.00(
19
)
Approved Pro

Insulation Pro Inc.

5.00(
19
)
Approved Pro
12 local quotes requested
Free onsite estimate

Air ducts cleaning Mold remediation Insulation replacement Family operated from California. We take our 20 years a of experience to the table ! Protecting your home from top to bottom. Make your house into clean energy efficient. Insulation removal Air sealing Rodents exclusion Certified mold remediator Insulation install . Blown in / batting . Air duct & HVAC cleaning and sanitation

"Excellent job was performed by owners Eric & Abid and their 3 person crew."

Thomas H on November 2025

Air ducts cleaning Mold remediation Insulation replacement Family operated from California. We take our 20 years a of experience to the table ! Protecting your home from top to bottom. Make your house into clean energy efficient. Insulation removal Air sealing Rodents exclusion Certified mold remediator Insulation install . Blown in / batting . Air duct & HVAC cleaning and sanitation

"Excellent job was performed by owners Eric & Abid and their 3 person crew."

Thomas H on November 2025


Super Attic Solutions, Inc.

5.00(
1
)
Approved Pro

Super Attic Solutions, Inc.

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 local quotes requested

We specialize in insulation installation and upgrades as well as roofing repair. Each of our employees boasts over 20 years of industry experience! We take pride in commitment to the quality of work we produce, and the long-term relationships we build with our clients. We guarantee quality and complete satisfaction, featuring a 10 year warranty at no additional cost on all of our services. We set ourselves apart from our competitors by offering the highest quality of work combined with experience, guaranteed. Find another company with a lower price and we will beat the competitor's price by 10%. Call today for a free estimate!

"Super Attic solutions did a great job. They went above and beyond for me and everything that was promised was delivered. I am usually a very picky person but the job was done to my complete satisfaction. I used to get heat waves from the attic but ever since super attic solutions came by I haven't had that problem. Juan came to my house with a team of 5 people and cleaned all of the insulation from our attic, treated for mold ,installed new batts insulation, opened some new vents in the roof and installed a new solar fan for us in the attic. I would highly recommend them!"

Nir C on September 2022

We specialize in insulation installation and upgrades as well as roofing repair. Each of our employees boasts over 20 years of industry experience! We take pride in commitment to the quality of work we produce, and the long-term relationships we build with our clients. We guarantee quality and complete satisfaction, featuring a 10 year warranty at no additional cost on all of our services. We set ourselves apart from our competitors by offering the highest quality of work combined with experience, guaranteed. Find another company with a lower price and we will beat the competitor's price by 10%. Call today for a free estimate!

"Super Attic solutions did a great job. They went above and beyond for me and everything that was promised was delivered. I am usually a very picky person but the job was done to my complete satisfaction. I used to get heat waves from the attic but ever since super attic solutions came by I haven't had that problem. Juan came to my house with a team of 5 people and cleaned all of the insulation from our attic, treated for mold ,installed new batts insulation, opened some new vents in the roof and installed a new solar fan for us in the attic. I would highly recommend them!"

Nir C on September 2022


Avatar for EvergreenPro Insulation LLC

EvergreenPro Insulation LLC

5.00(
14
)
Approved Pro

EvergreenPro Insulation LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
30 local quotes requested
7 years of experience

When it comes to insulation, we’ve got you covered(literally)! Our top notch insulation services are designed to make your space more comfortable and energy-efficient. With our expertise, we'll help you save money on heating and cooling costs while keeping the temperature just right. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The guys did a great job very happy. I got the job within four days from signing the contract. Highly recommend."

Deedra S on April 2025

When it comes to insulation, we’ve got you covered(literally)! Our top notch insulation services are designed to make your space more comfortable and energy-efficient. With our expertise, we'll help you save money on heating and cooling costs while keeping the temperature just right. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"The guys did a great job very happy. I got the job within four days from signing the contract. Highly recommend."

Deedra S on April 2025


Avatar for SPF Insulation

SPF Insulation

4.88(
38
)
Approved Pro

SPF Insulation

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
15 years of experience

SPF Insulation 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 customer's interests and make their concerns the basis of our business. Please give us a call today!

"Excellent crew from SPF Insulation. Completely professional. On time, very efficient in completing attic project and area cleanup after. Very friendly while keeping me updated on progress toward completion of project. Highly recommend this contractor."

Steven B on September 2025

SPF Insulation 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 customer's interests and make their concerns the basis of our business. Please give us a call today!

"Excellent crew from SPF Insulation. Completely professional. On time, very efficient in completing attic project and area cleanup after. Very friendly while keeping me updated on progress toward completion of project. Highly recommend this contractor."

Steven B on September 2025

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FAQs for batt, rolled or reflective insulation install or upgrade projects in Seattle, WA

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The Seattle, WA homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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