Compare the highest-rated insulation professionals in Lewiston, Idaho. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading regional contractor specializing in comprehensive home performance upgrades. They are highly regarded for their energy audits and advanced insulation solutions, particularly spray foam and dense-pack cellulose. Their strength lies in a whole-house approach, combining air sealing with insulation for maximum energy efficiency.
A well-established local contractor with a strong focus on both residential and commercial insulation. They have a long track record in the community and are known for reliable service and expertise in all major insulation types, including blown-in attic insulation and basement/crawl space solutions.
While based in the broader Palouse region, EcoPro is a dedicated insulation and home performance company that frequently serves the Lewiston area. They emphasize eco-friendly materials and modern techniques, receiving consistent praise for their professionalism, cleanliness, and effectiveness in solving difficult insulation problems in attics and walls.
The insulation market in Lewiston, Idaho, is characterized by a mix of long-standing local contractors and regional home performance specialists. Due to the city's climate with cold winters and hot summers, demand for quality insulation is consistent. The market is not oversaturated, leading to healthy competition among a handful of established, reputable providers. The average quality of service is high, with several companies holding relevant building performance certifications (like BPI). Pricing is generally competitive for the region; for standard blown-in attic insulation, homeowners can expect costs in the range of $1,500 - $3,500 depending on square footage and existing conditions, while spray foam projects are a premium service typically starting from $3,500 and going significantly higher. Many local providers are well-versed in the available utility rebates from companies like Avista Utilities, which can help offset the cost of energy efficiency upgrades.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Lewiston regulations and climate
Get answers to common questions about insulation services in Lewiston, Idaho.
For Lewiston's climate, which features hot, dry summers and cold winters with occasional humidity, a balanced approach is key. We most often recommend high-quality attic insulation as the top priority to prevent heat loss in winter and heat gain in summer. For attics, the U.S. Department of Energy recommends R-49 to R-60 for our region, which typically requires about 16-20 inches of blown-in cellulose or fiberglass. Properly insulating your walls to at least R-13 or R-15 is also crucial for year-round comfort and energy savings.
Costs vary significantly by home size, existing insulation, and material choice, but a full attic insulation project for an average Lewiston home often ranges from $1,500 to $3,500. Idaho Power offers valuable rebates for Lewiston residents who add qualifying insulation, which can cover a substantial portion of the cost—it's essential to check their current program details and ensure your contractor is familiar with the application process. Always get multiple, detailed quotes from local providers to understand the scope and fair pricing for your specific project.
The ideal times are during Lewiston's milder shoulder seasons—late spring (April-May) and early fall (September-October). This avoids the extreme heat of summer, which can be challenging for installers working in attics, and the potential for winter moisture issues when sealing a home. Scheduling during these periods also ensures your home is prepared for the more extreme temperatures ahead and helps you secure a booking before local contractors become fully booked for winter prep work.
First, verify they are licensed, bonded, and insured to work in Idaho. Look for established local companies with strong references and experience specifically with our valley's older home stock and climate challenges. A reputable contractor should provide a detailed energy audit or assessment, discuss moisture control (critical given our proximity to the rivers), and be knowledgeable about Idaho Power's rebate programs. Avoid providers who offer a one-size-fits-all solution without inspecting your home's unique needs.
Absolutely. In fact, air sealing is often the critical first step, especially in older Lewiston homes where gaps around windows, doors, and attic penetrations allow the Snake and Clearwater River winds to infiltrate. Adding insulation on top of significant air leaks is less effective and can even trap moisture, leading to potential mold issues. A professional assessment will identify these leakage points; sealing them with caulk, foam, or other methods can dramatically improve comfort and the performance of your new insulation, leading to greater energy savings.