Compare the highest-rated insulation professionals in Woodinville, Washington. All contractors are licensed, insured, and verified through our rigorous screening process.
A family-owned and operated business specializing in comprehensive home performance and insulation services. They are highly regarded for their expertise in energy audits, air sealing, and advanced insulation techniques like spray foam and blown-in cellulose. Their strong focus on solving moisture and comfort issues makes them a top choice for whole-home energy upgrades.
While originally known for pest control, Eco Pest has a highly-rated and dedicated insulation division that serves the same areas. They excel at insulation removal and replacement, particularly in attics and crawl spaces where old, contaminated, or rodent-damaged insulation is a problem. They combine insulation services with air sealing for a comprehensive solution.
A specialized contractor focused almost exclusively on insulation and air sealing. They receive consistently excellent reviews for their attention to detail, professionalism, and knowledge of modern building science. They are a strong choice for both new construction projects and retrofitting existing homes with higher performance insulation like blown-in fiberglass or cellulose.
The insulation market in Woodinville is characterized by a mix of large, general contracting firms and smaller, specialized "home performance" companies. Due to the prevalence of older housing stock built before modern energy codes, there is strong demand for attic and crawl space insulation upgrades, as well as air sealing to improve comfort and reduce energy costs. The competition is moderate, with a high bar for quality; successful companies differentiate themselves through deep expertise in building science, certifications (like BPI), and knowledge of local utility rebates from providers like Puget Sound Energy. Pricing is typically at a premium reflective of the Seattle-area market, with attic blow-in projects ranging from $1,500 - $4,500 and spray foam applications being a significantly higher-cost, high-performance option. Homeowners are generally well-informed and seek out contractors who can provide data-driven results, such as before-and-after blower door tests.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Woodinville regulations and climate
Get answers to common questions about insulation services in Woodinville, Washington.
Woodinville's marine west coast climate means cool, damp winters and mild, dry summers. The priority is creating a thermal and moisture barrier to retain heat and prevent mold. We recommend focusing on air sealing and using moisture-resistant insulation like closed-cell spray foam in basements and crawlspaces to combat the high humidity and average winter lows in the 30s.
Costs vary by home size, material, and scope, but a typical attic insulation upgrade in Woodinville ranges from $1,500 to $4,500. Washington's higher labor costs and the potential need for mold remediation in older homes can influence the price. Always get itemized quotes that include air sealing, as this is critical for efficiency in our climate and affects long-term savings.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer drier weather, which is crucial for proper installation of materials like spray foam or cellulose and for allowing adequate ventilation during attic work. Scheduling during these shoulder seasons also ensures your home is prepared before the rainy, cooler winter sets in.
Yes, installations must comply with the Washington State Energy Code (WSEC), which has specific R-value requirements for our climate zone. More importantly, Woodinville homeowners should explore rebates from the Snohomish County PUD or Puget Sound Energy, which often offer significant incentives for attic and wall insulation upgrades that improve energy efficiency.
Verify they are licensed, bonded, and insured in Washington State. Choose a provider with extensive local experience who understands vapor barriers and ventilation needs specific to our damp climate. Ask for references from nearby projects and ensure they conduct a thorough pre-installation energy audit to identify air leaks, not just insulation gaps.