Top Insulation Contractors in Seattle, WA
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Areas Of Expertise: House and Roofing Inspections, Painting: Residential and Commercial, Carpentry , and 1 more
"I hired them to repaint my kitchen cabinets. These guys are really good! Very professional and respectful, they did an amazing job and I couldn't be happier with the end result. They also did a great job of cleaning up after themselves and even took it upon themselves to replace a broken shelf pin and the electric outlets to match the color of the paint all without being asked. I can't say enough how impressed I am. Easily the best experience I've had from a contractor for any work."
Eric R. in July 2022
"Fast and professional. There not like the big corps. They tend to build a relationship with you. They put new vents all the way around my attic and clean out, then Installed new. Very happy with there service"
Moses D. in September 2022
Areas Of Expertise: Pest Control - Bugs and Insects, Pest Control - Termite, Pest Control - Rodents , and 2 more
"My experience was very positive. The person who came t o my home to give a bid explained everything in detail, answer all questions. He explained the type of materials he will use, approximated the length of time to do the job, and how they will do the job, i.e., spraying inside the attic to get rid to bird mites, etc."
Mary H. in December 2019
Service Pros
Areas Of Expertise: Insulation
"Super professional. They were so quiet, quick in their work and respectful of our home and space. In the end - we replaced the 30yr old insulation, the vapor barrier, vacuumed and sanitized 1300sf under the house. Also did rodent proofing and I am very pleased with Green Attic and thank them for doing a wonderful job!"
Sheri D. in August 2022
Areas Of Expertise: Air Blown Insulation, Rolled/Batted Insulation, Air Blown Insulation , and 4 more
"Felt like I got exactly what I asked for, from a gal with integrity. My attic was spotless when the job was done."
George G. in October 2022
Areas Of Expertise: Licensed & Insured, Additions & Remodels, Residential & Commercial
"They were a very fast and professional company providing a high quality of work. Leveled floors, hung drywall, painted, installed flooring, and thresholds etc. Restored our home faster than we anticipated. Great communication also!"
Mark S. in March 2023
In business since 2018
About us: "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. we have specials deals all year around. Above all, we are watchful of our customers interests and make their concerns the basis of our business. Please give us a call today!"
Areas Of Expertise: Residential / Commercial
"Evergreen Build did an amazing job with the tile! I get compliments any time anyone comes over with how great the tile was done and how good it looks. Thanks a bunch, highly recommend!"
Lucy S. in January 2023
Areas Of Expertise: remodeling, siding, roofing
"They were very personable, they did great work, and it was easy for another contractor to finish the job."
Brendan C. in January 2023
Areas Of Expertise: siding, Roofing, skylight
"The Owner and his Crew were very pleasant and respectful of my property and home. Any concerns that came up during the roofing resealing and the replacement of two failed carport roof support posts were quickly answer and/or resolved. I am very impressed with 925 Construction and happy with the completed work. I highly recommend 925 Construction and I will use them for future projects."
Mike G. in August 2020
Areas Of Expertise: Gutters, Roofing, general construction , and 1 more
"They are great people. They installed the roof on my house, and they did a very good job. That estimate that they gave me was very affordable, and their job is something that I can trust because it is warranted. I really recommend them."
Javier A. in January 2023
Areas Of Expertise: Power Washing, Cabinets & Countertops, Painting , and 2 more
"Jesse was very communicative and quick to respond to my questions and concerns regarding the redo of my crawl space insulation. The work was started and completed just as he said it would be. I was very happy with the outcome and would call for his services in the future. Thank you"
Rhonda L M. in October 2022
Areas Of Expertise: Repairs, Tear Offs/ Replacements, Roofing
"They did a good job, they were quick to response and to complete the job."
David C. in November 2022
Areas Of Expertise: Rodent Exclusion, HVAC & Duct Replacement, Mold Removal & Remediation , and 7 more
"They have saved me a tremendous amount of money! I was shocked! They go above and beyond what is expected! This crew was super nice and did such a great job. He even changed the format on his invoice so Seattle city light needed on it. I had all of that paper work ready the very day the job was done. They show up ahead of schedule, work very hard and even finished attic insulation on a 95 degree day in jumpsuits, masks and hoods. They were clean, put tarps and blankets down to protect everything and you wouldn't even know they were there."
Michelle S. in September 2017
"I am a DIY'r and Eastside was willing to go the part of my floor/rot issue that I couldn't do allowing me to continue with my project."
Millie M. in October 2014
Areas Of Expertise: Roofing, Remodels, Siding
"I had my deck and roof done, Great experience working with Revive Remodels!! I was worried because in the past I had bad experiences with other companies and I will say that moving forward I will be using Revive Remodels on every project! Great staff and great work that was completed on time!"
Dustin B. in January 2023
Areas Of Expertise: crawl space and attic cleaning, Pest damage repair and exclusion, Insulation removal and installs , and 2 more
"We had the crawl space insulation installed and more insulation blown in the attic. I'm glad it was pointed out during the inspection that there wasn't enough insulation up there. Thanks Tarah. My husband and I were happy with the finished results; to have such an awesome team of experts was fantastic and I would recommend them to everybody. The guys were very professional and courteous and went above and beyond to make sure everything was taken care of, even putting in a new fan vent on the roof that wasn't properly installed and fixing a couple other problems up in the attic without extra charge. I am thoroughly enjoying my nice "Warm Home" Thanks guys and gals for a job well done."
Donna C. in October 2021
Areas Of Expertise: Insulation, Sound Proofing, Spray Foam
"They were good and personable when they came."
Bob R. in February 2022
Areas Of Expertise: Chimney Cleaning, Dryer Vent Cleaning, Air Duct Cleaning
"Shawn came out the same day we requested the service and did a great job working through a challenging environment (impossible to get to roof, a hot and tight attic) to remove the blockage in the vent and get everything clear and working again."
Mark P. in May 2019
In business since 2012
Areas Of Expertise: Insulation
About us: "We are the experts when it comes to residential renovations. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction, in which we serve the client from the developmental stages of a project to final completion."
In business since 2022
Areas Of Expertise: Batt, Rolled or Reflective Insulation - Install or Upgrade, Blown-In Insulation - Install or Upgrade
About us: "CMQ Insulation Services, LLC, is a locally owned and operated company with over 8 years of experience. We specialize professional insulation services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life! Tambien se habla español!"
Areas Of Expertise: Major renovating, Roofing, Flooring , and 2 more
"My roof was ready for a replacement and after I contacted 5-6 roofing contractors I decided to go with Legacy Team Construction. They not only gave me great price, they were available in short time and I already heard many good things about them. Israel and his team started roofing replacement project on time, finished quick, and the quality of their work is excellent. I just couldn't ask for more!"
Ken M. in March 2022
Areas Of Expertise: Roof Repairs, Siding Repairs, Roofing Installation , and 4 more
"I just got my roof done with Roof4Life, everything was professionally done with high quality materials for our entire roof replacement. you get your money's worth, and there was no pressure during the process from the free estimate to completion. Follow up calls made sure we were happy. Highly Recommended!!!"
Michael H. in February 2023
"They did a really good work, and were really nice."
Yolanda F. in March 2023
Areas Of Expertise: Insulation Services, Window Services
"They turned them around a lot quicker than I anticipated. Very impressed!"
Eric S. in December 2022
Out of Network Insulation Contractors in Seattle, WA
- Guardian Roofing & Windows
2000 124th Ave NE B102
Bellevue, WA 98005
- Rainier Insulation Services, Inc.
11012 Canyon Rd. East, Suite 8-949
Puyallup, WA 98373
- Matthew's Construction Services, Inc.
P.O. Box 652
Seabeck, WA 98380
- Amy Works Home Maintenance & Repair
2825 S.W. Adams St.
Seattle, WA 98126
- ThisSaves.com
Kirkland
Kirkland, WA 98033
Frequently Asked Questions
What is insulation?
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What is insulation?
Insulation is material that provides a barrier within a home’s walls, ceilings, and floors to regulate temperature and noise. If your home gets overly hot in the summer and cold in the winter, it’s likely not insulated properly.
Insulation efficiency is measured by R-value, which determines how resistant different types of insulation are to heat flow (or energy loss). R-values are measured by inch of thickness. The higher the R-value, the better the performance and the higher the price.
How much does insulation cost?
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How much does insulation cost?
Our project data lists insulation costs between $1,400 and $6,300, but your final price will depend on the type of insulation you choose, its R-value, and how much you need.
- Fiberglass insulation: $0.30 – $1.50
- Blown-in insulation: $1 – $2
- Spray foam insulation: $0.50 – $2
- Radiant insulation: $0.20 – $1
- Rigid board insulation: $0.25 – $1
Luckily, insulation is one of the best investments you can make in your home—it has an ROI of at least 100%, meaning you’ll likely make back what you spend in a few years or so.
What is insulation made of?
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What is insulation made of?
Insulation is made of many different materials, which can also impact the R-value needed for energy efficiency.
- Fiberglass: The most common insulation material made from glass. Fiberglass is a skin and lung irritant, so you’ll need to wear gloves and clothing when working with fiberglass insulation.
- Cellulose: Made from recycled paper products, plus borate for fire and insect resistance.
- Foam: Made from polystyrene, polyisocyanurate, or polyurethane plastic. You can also install cement-based foam insulation using rigid foam boards.
- Mineral wool: Made of fire-resistant rock wool, a mix of natural materials, or slag wool, made from a molten metal product.
- Natural fibers: Made from various recycled natural materials, including cotton, sheep’s wool, and straw.
Where is insulation in a house?
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Where is insulation in a house?
If your attic is unfinished or you’ve ever demolished an interior wall, you might notice batt or spray foam insulation between the studs. Putting insulation between your walls and floors helps keep your home comfortable and your energy costs down. In addition to walls and attics, you can install insulation in your garage, in floors above vented crawl spaces, and basements.
- Garage Insulation: $0.50 to $1.25 per square foot
- Floor and crawl space insulation: $1 to $5 per square foot
- Basement insulation: $1.50 to $2.50 per square foot
- Wall insulation: $1 to $4 per square foot
- Attic insulation: $1,500 to $6,000
- Roof insulation: $1,500 to $4,500 or more
What are the different types of insulation?
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What are the different types of insulation?
There are a few types of home insulation, and they all are made of different materials— most commonly, fiberglass, cellulose, and foam. Insulation includes these materials in the following forms:
- Loose-fill: Also called “blown-in,” loose-fill is sprayed into wall cavities, attics, and other oddly-shaped areas using special equipment. This insulation is usually made of fiberglass, cellulose, or mineral wool.
- Batts: An affordable insulation blanket best for unfinished spaces, such as between framing, studs, or joists. They come in pre-cut sections suitable for DIY installation and are mostly made from fiberglass, though other versions are also available.
- Rolls: Similar to batt insulation, but comes in rolls. Its make-up leaves less chance for gaps between sections and is more efficient than other types.
- Foam board: One of the most popular insulation types that can be used almost anywhere in your home. Foam boards also have a high R-value.
- Spray foam: Expands and hardens to fill gaps, small and large. Can be closed-cell or open-cell, but closed-cell has a higher R-value, making it more expensive per square foot.
- Radiant barriers: Does not reduce heat flow but directs heat away from the home instead. Radiant barriers are DIY-friendly and affordable, but they won’t be as effective in the winter months.
Top Insulation Projects
HomeAdvisor Community Rating
Seattle Insulation Contractors are rated 4.8 out of 5 based on 1,519 reviews of 41 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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Recent Job Requests for Insulation Contractors in Seattle, WA
NewProject: Blown-in Insulation Install Location: Seattle, WADate: 03/09/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Ready to HireLocation of Installation: CeilingLocation of Installation: FloorLocation of Installation: Non-masonry wallsComment: We have a 1st floor room that is constantly around 51 degrees (infrared measurement of walls, ceiling and floor) despite having a central heating vent blowing in 75 degree air. Looking for the least disruptive yet effective insulation solution.NewProject: Soundproofing Location: Seattle, WADate: 03/08/23Residence Type: Single family residenceLocation: Home/ResidenceDesired Completion Date: 1 - 2 weeksRequest Stage: Planning & BudgetingSoundproofing Locations: WallsType of Noise: Conversation from a neighboring roomSoundproofing Locations: FloorsComment: We would like to sound proof the main floor from the basement as the basement is an Airbnb and sound carries to the basementNewProject: Spray Foam Insulation Install Location: Seattle, WADate: 03/07/23Nature of Project: Insulation for new construction/additionLocation: Home/ResidenceWhat type of insulation do you want?: Spray foamDesired Completion Date: 1 - 2 weeksRequest Stage: Ready to HireArea of Home: CeilingComment: We are building an ADU and need to find someone to provide and install spray foam for the ceiling only. The living space is only 800 sq ft.NewProject: Blown-in Insulation Install Location: Seattle, WADate: 03/07/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Ready to HireLocation of Installation: CeilingLocation of Installation: FloorLocation of Installation: Non-masonry wallsComment: Blow in wall insulation for 1500 sq.ft. 1940’s house. Various parts of house have existing insulation in crawl spaces and attic.NewProject: Spray Foam Insulation Install Location: Seattle, WADate: 03/05/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceWhat type of insulation do you want?: Spray foamDesired Completion Date: Timing is flexibleRequest Stage: Ready to HireArea of Home: AtticNewProject: Batt, Rolled or Reflective Insulation Install Location: Seattle, WADate: 03/04/23Desired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingLocation: Home/ResidenceNewProject: Batt, Rolled or Reflective Insulation Install Location: Seattle, WADate: 03/03/23Type of Insulation: Want recommendationRequest Stage: Ready to HireLocation of Installation: Foundation wallsLocation of Installation: AtticOther Services Selected: Interior sound proofingLocation of Installation: FloorLocation of Installation: Non-masonry wallsType of Insulation: Reflective or radiant barrierLocation: Home/ResidenceNature of Project: Insulation for new construction/additionLocation of Installation: CeilingDesired Completion Date: Timing is flexibleOther Services Selected: Blanket wrapping hot water heaterOther Services Selected: Insulating hot water pipesLocation of Installation: RoofType of Insulation: BattsLocation of Installation: Masonry wallsType of Insulation: RolledNewProject: Soundproofing Location: Seattle, WADate: 03/02/23Residence Type: Single family residenceLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingType of Noise: Exterior noise (traffic, airplanes, neighbors, etc.)Soundproofing Locations: WallsSoundproofing Locations: WindowsComment: I live next to a train and the squeal from the rail is almost unbearable, especially during the night. We are interested in soundproofing solutions for the bedroomProject: Blown-in Insulation Install Location: Seattle, WADate: 03/01/23Desired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingNature of Project: Insulation for existing homeProperty Owner: YesLocation: Home/ResidenceProject: Spray Foam Insulation Install Location: Seattle, WADate: 03/01/23Location of Installation: Non-masonry wallsLocation of Installation: AtticRequest Stage: Planning & BudgetingDesired Completion Date: Timing is flexibleNature of Project: Insulation for existing homeArea Description: No framing exposed - walls to remain intactLocation: Home/ResidenceComment: Our old house lacks insulation in some walls. Looking to hire a contractor that uses the best, most environmentally safe, low GHG, and safest injection foam insulation to improve our home's efficiency. I would also like a company that can use thermal imaging to ensure the areas that need it are covered.Project: Spray Foam Insulation Install Location: Seattle, WADate: 02/28/23Nature of Project: Repair/Replace existing insulationLocation: Home/ResidenceDesired Completion Date: More than 2 weeksRequest Stage: Planning & BudgetingArea Description: Not sureLocation of Installation: CeilingComment: Need to replace ridgid insulation in roof. Roof will be removed and new spray Insulation will need to be applied from the top before roof is replaced. Area is approx. 17x23'. 2% grade on roof.Project: Batt, Rolled or Reflective Insulation Install Location: Seattle, WADate: 02/28/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Ready to HireLocation of Installation: CeilingType of Insulation: Want recommendationLocation of Installation: AtticComment: Our house, built in 1955, has what I'm pretty sure is the original old insulation. (We'd owned it for ten years.) The garage ceiling, right under a couple of rooms, has none, and some of the other walls are poorly insulated too. I'm wondering if the electrical connections in the attic need to be upgraded as part of the project too.Project: Blown-in Insulation Install Location: Seattle, WADate: 02/28/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Ready to HireLocation of Installation: AtticProject: Soundproofing Location: Seattle, WADate: 02/27/23Residence Type: Single family residenceLocation: Home/ResidenceDesired Completion Date: 1 - 2 weeksRequest Stage: Planning & BudgetingType of Noise: Exterior noise (traffic, airplanes, neighbors, etc.)Type of Noise: Construction noiseType of Noise: Floor/stairs squeakingSoundproofing Locations: WallsType of Noise: Loud musicSoundproofing Locations: WindowsType of Noise: Conversation from a neighboring roomSoundproofing Locations: FloorsComment: Single small bedroom - the house is a rental; no damage or remodeling. I want the sound proofing to also accommodate for future LED light decor. Padding/sound proofing for the ceiling is also wanted.Project: Spray Foam Insulation Install Location: Seattle, WADate: 02/27/23Nature of Project: Insulation for existing homeLocation: Home/ResidenceDesired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingArea Description: No framing exposed - walls to remain intactLocation of Installation: Non-masonry wallsLocation of Installation: FloorLocation of Installation: RoofProject: Batt, Rolled or Reflective Insulation Install Location: Seattle, WADate: 02/26/23Location: Home/ResidenceWhat type of insulation do you want?: Batt, rolled or reflectiveDesired Completion Date: Timing is flexibleRequest Stage: Planning & BudgetingComment: Attic insulation