Insulation Installation Services Across the Greater Seattle Area
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Insulation Installation Across the Greater Seattle Area
Whether you want to improve your home’s energy efficiency or enhance indoor comfort, your search for professional insulation installation services ends here.
Our expertise in installing insulation and our knowledge of insulation materials and energy efficiency are at your service. Volcano Builders opened in February 2021, led by Bar with over 20 years of experience.
You can choose from several insulation materials, and our crew installs them with current techniques.
Transparent pricing
Insulation Prices in the Greater Seattle Area
Insulation we install across the Greater Seattle Area starts at $5,000+ for an attic up to 1,500 sq ft, $6,000+ for a crawl space and floor and $12,000+ for a whole house.
Price depends on three things: the area insulated, the condition of the old insulation, and the method. Pick an area to see what each level includes.
Attic Insulation
Up to 1,500 sq ft attic
Typical size: Up to 1,500 sq ft
Common scope: Top up · Remove and replace · Spray foam
Typical timeline: 1 to 4 days on site, after permits
Basic
Functional + affordable
Starting at
$5,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Inspection and photos
- Air sealing at top plates and penetrations
- Blown in insulation to code depth
- Baffles at the eaves
- Access hatch insulated
- Cleanup
Best for: Lower bills fast
Mid-Range
Style + durability
Starting at
$8,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Old insulation removed and hauled away
- Area vacuumed and sanitized
- Full air sealing
- New insulation to code
- Vapor barrier where needed
- Ventilation check
Luxury
Design + premium finish
Starting at
$15,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Spray foam insulation
- Full air seal in one step
- Higher R value per inch
- Moisture control
- Rim joists sealed
- Before and after report
Methods: Basic is a blown in top up with air sealing. Mid-Range removes the old insulation and installs new. Luxury is spray foam.
Not included in starting prices: Asbestos or vermiculite removal · Rodent cleanup beyond normal debris · Electrical repairs found during the work · Drywall work for wall insulation. We price these in writing if your project needs them.
Crawl Space and Floor
Under the floor
Typical size: Typical crawl space
Common scope: Floor batts · Vapor barrier · Spray foam
Typical timeline: 1 to 5 days on site, after permits
Basic
Functional + affordable
Starting at
$6,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Inspection and photos
- Air sealing at top plates and penetrations
- Blown in insulation to code depth
- Baffles at the eaves
- Access hatch insulated
- Cleanup
Best for: Lower bills fast
Mid-Range
Style + durability
Starting at
$10,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Old insulation removed and hauled away
- Area vacuumed and sanitized
- Full air sealing
- New insulation to code
- Vapor barrier where needed
- Ventilation check
Luxury
Design + premium finish
Starting at
$16,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Spray foam insulation
- Full air seal in one step
- Higher R value per inch
- Moisture control
- Rim joists sealed
- Before and after report
Methods: Basic is a blown in top up with air sealing. Mid-Range removes the old insulation and installs new. Luxury is spray foam.
Not included in starting prices: Asbestos or vermiculite removal · Rodent cleanup beyond normal debris · Electrical repairs found during the work · Drywall work for wall insulation. We price these in writing if your project needs them.
Whole House
Attic, walls and crawl space
Typical size: Whole house
Common scope: Attic · Walls · Crawl space
Typical timeline: 2 days to 2 weeks on site, after permits
Basic
Functional + affordable
Starting at
$12,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Inspection and photos
- Air sealing at top plates and penetrations
- Blown in insulation to code depth
- Baffles at the eaves
- Access hatch insulated
- Cleanup
Best for: Lower bills fast
Mid-Range
Style + durability
Starting at
$22,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Old insulation removed and hauled away
- Area vacuumed and sanitized
- Full air sealing
- New insulation to code
- Vapor barrier where needed
- Ventilation check
Luxury
Design + premium finish
Starting at
$40,000+
Includes a standard material allowance. Upgrades are priced from your selections.
- Spray foam insulation
- Full air seal in one step
- Higher R value per inch
- Moisture control
- Rim joists sealed
- Before and after report
Methods: Basic is a blown in top up with air sealing. Mid-Range removes the old insulation and installs new. Luxury is spray foam.
Not included in starting prices: Asbestos or vermiculite removal · Rodent cleanup beyond normal debris · Electrical repairs found during the work · Drywall work for wall insulation. We price these in writing if your project needs them.
What's Included by Tier
| Feature | Basic | Mid-Range | Luxury |
|---|---|---|---|
| Inspection | Included | Included | Included |
| Air sealing | Key gaps | Full | Spray foam seal |
| Old insulation removal | Not included | Included | Included |
| Insulation | Blown in | New to code | Spray foam |
"Starting at" prices reflect typical completed projects in the Greater Seattle Area and are not a quote. Final pricing depends on size, layout changes, material selections, permits and what we find behind the walls. Every project is priced in writing after a site visit.
Insulation Cost Questions
How much does insulation cost in the Greater Seattle Area?
Insulation starts at $5,000+ for an attic up to 1,500 sq ft, $6,000+ for a crawl space and floor and $12,000+ for a whole house.
Blown in or spray foam?
Blown in costs less and works well in attics. Spray foam seals air and insulates in one step and costs more.
Are there rebates?
Puget Sound Energy offers insulation rebates for its customers through approved contractors. Ask us when we visit.
How long does it take?
On site: 1 to 4 days for an attic, 1 to 5 days for a crawl space and up to 2 weeks for a whole house.
Do you remove old insulation?
Yes, in the Mid-Range and Luxury levels. Wet or rodent damaged insulation should come out.
What warranty do you give?
Every insulation job carries a 2-year workmanship warranty, extendable to 5 years. Materials carry their manufacturer's warranty.
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Consultation
We start with a consultation by appointment to assess your home’s insulation needs.
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Customized Plan
Based on your specific requirements, we create a tailored insulation plan.
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Expert Installation
Our skilled technicians install your insulation with precision and care.
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Final Inspection
We perform a thorough inspection to ensure everything meets our high standards.
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Workmanship Warranty
Our 2-year workmanship warranty covers installation and labor. It can be extended up to 5 years for an added charge and is not transferable. Materials carry the manufacturer’s warranty. See our warranty.
Plan Your Insulation Project
Your Local Offices
We work across the Greater Seattle Area from our main office in Bellevue and our offices in Seattle, Monroe, Tacoma and Renton, serving 132+ cities in 8 counties.
- Bellevue (main office)
- Seattle
- Monroe
- Tacoma
- Renton
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