The Best Insulation Contractors in Olympia, WA

Compare the highest-rated insulation professionals in Olympia, Washington. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Pacific Northwest Insulation

4.8
(180 reviews)
Verified

A highly-rated local contractor specializing in comprehensive home performance and insulation services. They are known for their expertise in spray foam and blown-in cellulose, and they strongly emphasize the combination of air sealing with insulation for maximum energy efficiency. They often handle complex projects including crawl space and attic encapsulation.

5720 Littlerock Rd SW, Tumwater, WA 98512

Specialties & Features

Spray foam insulation
Blown-in cellulose
Crawl space encapsulation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Sound Insulation & Supply

4.7
(110 reviews)
Verified

A well-established provider serving the South Sound region for over two decades. They offer a full range of insulation services for both residential and commercial properties. They are particularly recognized for their work in attic insulation upgrades and insulation removal/replacement projects, helping homeowners modernize older Olympia-area homes.

4600 S Washington St, Tacoma, WA 98409 (Serves Olympia area)

Specialties & Features

Attic insulation upgrades
Insulation removal and replacement
Wall insulation

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Evergreen Home Insulation

4.6
(90 reviews)
Verified

A dedicated local contractor focusing on energy efficiency retrofits for existing homes. They provide energy audits and are knowledgeable about local utility rebates, particularly from Puget Sound Energy. Their services are comprehensive, ensuring that insulation, air sealing, and ventilation are addressed as a complete system.

8220 8th Ln SE, Lacey, WA 98513

Specialties & Features

Energy efficiency audits
Air sealing services
Blown-in insulation installation

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Olympia

The insulation market in Olympia is characterized by a mix of a few specialized local contractors and larger regional companies based in Tacoma that serve the South Sound area. The competitive landscape is moderate, with high consumer demand driven by Olympia's cool, damp marine climate and the prevalence of older housing stock lacking modern energy efficiency. The average quality of service is good to high, with leading providers being well-versed in the critical combination of air sealing and insulation required for Western Washington's building science. Typical pricing is competitive but on the higher end compared to national averages, reflecting the West Coast cost of labor and materials. A standard attic blow-in insulation job for a 1,500 sq. ft. home can range from $1,800 to $3,500, while more complex spray foam applications or full crawl space encapsulations can range from $5,000 to $15,000+. Homeowners are increasingly aware of and motivated by available utility rebates and the long-term energy savings, which the top providers are adept at facilitating.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Olympia regulations and climate

Frequently Asked Questions About Insulation in Olympia

Get answers to common questions about insulation services in Olympia, Washington.

1What are the most important types of insulation for Olympia's climate, and where should I prioritize adding it in my home?

For Olympia's cool, damp marine climate, moisture resistance and air sealing are critical. Prioritize attic insulation (typically blown-in cellulose or fiberglass to at least R-49) to prevent heat loss, and ensure crawl space walls or floors are properly insulated and vapor-sealed to combat ground moisture. Wall insulation upgrades are also valuable for our long heating season, but a professional assessment can identify the most cost-effective areas for your specific home.

2How much does insulation installation typically cost for an Olympia home, and are there any local rebates or incentives?

Costs vary widely by home size and scope, but a typical attic insulation project in Olympia ranges from $1,500 to $3,500. Washington State offers significant incentives, including sales tax exemptions on eligible insulation materials and labor, and potential cash rebates through local utilities like Puget Sound Energy (PSE) or the Olympia Community Solar program. A qualified local contractor can provide a detailed quote and help you navigate available incentives.

3When is the best time of year to get insulation installed in Olympia, and how long does it usually take?

The ideal time is during our drier months, typically late spring through early fall (May to September), to avoid rain delays for exterior work like crawl space access. Most single-area projects (like an attic) are completed in one day, while whole-home retrofits may take 2-3 days. Scheduling in advance is recommended, as contractors book up quickly heading into the fall when homeowners are preparing for winter.

4What should I look for when choosing an insulation contractor in Thurston County?

Always verify the contractor is registered with the Washington State Department of Labor & Industries and carries proper insurance. Look for local experience with Olympia's building codes and climate-specific challenges, such as managing ventilation to prevent condensation. Check for strong reviews on local platforms and ask if they conduct a pre-installation energy audit and provide detailed documentation for utility rebates.

5My older Olympia home feels drafty and has high humidity. Will new insulation alone solve these problems?

Not entirely. While adding insulation is crucial, Olympia's high humidity requires a comprehensive approach. A professional should first perform an air sealing audit to close gaps in the building envelope, which is often the source of drafts and moisture intrusion. Proper ventilation strategies (like attic and crawl space vents) must be evaluated in tandem with insulation to manage indoor humidity and prevent mold, ensuring a healthy, durable upgrade.