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TRUSTED BY SUQUAMISH, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon104
    Verified insulation services reviews

Top-Rated Insulation pros in Suquamish - Updated Nov 2026

Avatar for Insulation Northwest
Insulation Northwest
4.8(
108
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving Suquamish, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Insulation NW did an excellent job of removing old inadequate insulation from an attic and crawlspace and replacing it with new insulation and wrapping the ductwork. They had two crews, one for the attic and one for the crawlspace, working for many hours to complete the job. A vapor barrier was also installed in the crawlspace. We paid a very reasonable price after the large PSE Rebate was applied."
Additional Photos
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16 neighbors recently requested a quote
Recommended by73%of homeowners
A G INSULATION LLC
5.0(
10
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Suquamish, WA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

A G 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. \n

Recommended by22%of homeowners
Avatar for Acorns Attics & Crawls, LLC
Acorns Attics & Crawls, LLC
5.0(
17
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Suquamish, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"I’m very satisfied with the insulation work performed under my house. My home is now toasty warm on my feet. Phillip and his worker showed up on time, went about their work and cleaned up the mess created in the process. I am greatful that I found such a competent company."
Response time4 hrs
Response rate100%
31 neighbors recently requested a quote
Pacific Spray Systems LLC
5.0(
6
)
Spray Foam Insulation - Install

Serving Suquamish, WA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

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 spray foam 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!

Response time2 days
Recommended by100%of homeowners
Avatar for WASHINGTON RETROFOAM LLC
WASHINGTON RETROFOAM LLC
4.8(
6
)
Injection Insulation - Install

Serving Suquamish, WA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

We have over 27 years of experience and over 100k homes insulated. RetroFoam is a non-toxic, odor-free, tripolymer-based resin that acts as both an insulator with a high R-Value and an air seal. This injection foam doesn't off-gas, is Class One Fire Rated, and safe to have in your home. It is an excellent choice for existing exterior walls and can be installed from outside the home. \n\nCascade RetroFoam understands that your home is your biggest investment and you don't want to waste time and money dealing with an uncomfortable home and high energy bills. We offer PREMIER service to the following neighborhoods: * Shoreline, Bellevue, Magnolia, Ballard, Queen Anne, West Seattle, Capitol Hill, Wallingford, University District, Magnolia, Seward Park, Fauntleroy, Laurelhurst, Bothell, North Bend, Snoqualmie, Renton, Kent, Des Moines.

My jobs
My jobs
My jobs
My jobs
My jobs

+22

Response time2 days
Response rate100%
14 neighbors recently requested a quote
Avatar for WA EVERGREEN INSULATION LLC
WA EVERGREEN INSULATION LLC
4.4(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Suquamish, WA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I recently had the pleasure of working with Evergreen Insulation, and I cannot speak highly enough of their professionalism, expertise, and commitment to delivering tailored solutions. From start to finish, their genuine dedication to providing top-notch service left me thoroughly impressed and confident in their abilities for future projects. From the moment I contacted the insulation company, their team demonstrated a deep understanding of my specific insulation needs. They took the time to listen attentively and analyze the problem, ensuring they fully grasped the unique challenges of my property. This attention to detail instilled in me a sense of trust and confidence in their ability to provide a customized solution. Throughout the process, the insulation team displayed a remarkable level of professionalism. Their expertise was evident as the very beginning they knew the exact insulation requirements of my property, leaving no stone unturned. Their attention to detail and commitment to excellence were truly commendable. What truly sets this insulation company apart is their ability to provide tailored fixes. Rather than offering a one-size-fits-all approach, they took the time to understand the specific needs of my property and designed a solution accordingly. Their personalized approach ensured that every aspect of the insulation work was precisely tailored to maximize energy efficiency and cost-effectiveness all within a very competitive price. I genuinely believe they are the best choice in Washington."
After Picture Fixed and well protected
Before Picture (DANGEROUS for crawlspace!!)
New Construction Insulation
Protected and Sanitized Crawlspace
Before Picture Of No Insulation and fire hazard

+2

Response time9 hrs
Response rate93%
Recommended by83%of homeowners
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Insulation FAQs, answered by experts

On average, insulating an attic costs about $2,500, with a typical range of $1,500 to $3,500. The final price often depends on the attic's size, with costs generally falling between $1 to $3 per square foot. For example, insulating a 1,800-square-foot attic would likely cost between $1,800 and $5,400.

If the project involves removing old insulation, this can add an average of $900 to the total cost, bringing a full removal and reinsulation project to around $3,000.

Several factors influence the overall cost:

  • Insulation Type: Prices per square foot vary significantly by material.

  • Reflective: $0.50–$1.50

  • Blown-in: $1–$4

  • Batt: $2–$4

  • Loose-fill: $2–$5

  • Spray foam: $2–$5

  • Structural insulated panels (SIPs): $4–$7

  • Project Complexity: Factors like sealing air leaks, poor attic accessibility, and required inspections can add to the cost.

  • Removal Issues: The discovery of mold, asbestos, or pests during the removal of old insulation can substantially increase the price.

The most obvious con of injection foam is the cost. It’s much more expensive to install than fiberglass or spray foam, but it may be your only option (unless you want to remove entire walls around the home). Another con is that it involves drilling into existing material, which has to be repaired after the foam is injected. Some injection foams are made from products that aren’t environmentally friendly, and improper installation can lead to trapped moisture, which can lead to expensive mold remediation down the road. 

Several types of insulation are effective for crawl spaces, with spray foam and rigid foam boards being two of the best options. Closed-cell spray foam insulation is a strong choice because it effectively repels moisture, resists biological growth, seals the air, and provides excellent thermal protection, especially in hard-to-reach areas. Rigid foam insulation boards are another excellent material as they insulate well, resist water damage, and will not settle over time like fiberglass or cellulose.

You can buy pipe insulation materials in your local hardware store or in major home improvement stores. You can also shop for insulation online, where you may be able to more easily buy in bulk. When shopping, make sure you know your pipe's dimensions so you can buy the correct size of pipe insulation materials for your pipes.

All garage doors, particularly newly installed models, add value to your home. Higher-quality and higher-priced doors increase the ROI, so a well-insulated custom garage door increases the value of your home more than a poorly-insulated stock model. Updating a garage door boasts the second-highest home improvement ROI, at nearly 95%.

The Suquamish, WA homeowners’ guide to insulation services

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