New Construction & Retrofit Insulation Installation Experts
Proper insulation installation is one of the most important steps in improving a home’s energy efficiency, comfort, and long-term performance. Without effective insulation, homes experience significant heat loss in winter and unwanted heat gain in summer, leading to energy loss, inconsistent temperatures, and higher utility bills. Northwest Weatherization provides expert insulation installation services using high-quality insulation materials and proven techniques designed to reduce air leaks and maximize home performance.
Our professional installers take a whole-home approach—addressing air sealing, insulation placement, and ventilation to ensure lasting results.
Call Northwest Weatherization Today for All Things Home Insulation and Weatherization
Are There Any Programs to Help with the Cost of My Insulation Installation?
There are quite a few programs out there to help with insulating your home, and we try to keep on top of any new programs that come out to help you save money. One that a lot of people in the Portland Metro area are familiar with, and you may be too, is Energy Trust of Oregon. What most people don’t realize is there are several different programs within Energy Trust. To name a few that we participate in: Savings Within Reach, On-Bill, and Existing Home. We also participate in the SHOW program, and there are others offered often through different utility companies. Ask the tech when they come out what you might qualify for.
Give us a call today or send in an audit request, and we can come check out your attic insulation and any other energy efficiency concerns you may have at no cost. You might be surprised at what you qualify for.
Our Insulation Installation Process
Insulation Installation for New Construction
In a new build, insulation is installed after framing, plumbing, and electrical systems are completed but before drywall is added. This stage allows full access to wall cavities, ceilings, and subfloor areas.
Our Process Includes:
- Energy Assessment & Planning – We determine the appropriate insulation products and R-value levels based on climate and building design.
- Air Sealing – Before insulation is placed, we seal air leaks around wiring, plumbing penetrations, ductwork, and framing gaps to prevent future energy loss.
- Installation of Insulation Materials – Fiberglass batts, blown-in insulation, or rigid foam insulation are installed in designated areas for optimal coverage.
- Final Inspection – We verify depth, fit, and proper installation to ensure maximum performance and energy efficiency.
Proper installation during construction ensures the home is built for comfort and efficiency from the start.
Insulation Installation for Retrofit Projects
In older homes, retrofit insulation improves performance without major structural changes. Many homes lose energy due to outdated insulation materials or insufficient coverage.
Our Retrofit Process Includes:
- Comprehensive Energy Assessment – We identify areas of heat loss, air leaks, and underperforming insulation.
- Air Sealing Improvements – Sealing gaps and penetrations is critical before adding new insulation.
- Upgrading Insulation – We may install blown-in insulation in attics or wall cavities, add fiberglass insulation where accessible, or apply rigid foam insulation in crawl spaces or basements.
- Performance Verification – We ensure insulation depth and coverage meet recommended standards.
Retrofit insulation is one of the most cost-effective ways to improve comfort and reduce energy loss in existing homes.
We Offer Insulation Installation Services In:
Aloha, OR | Beaverton, OR | Canby, OR | Estacada, OR | Gresham, OR | Happy Valley, OR | Hillsboro, OR | Lake Oswego, OR | Laurelhurst, Portland, OR
Milwaukie, OR | Molalla, OR | Mt Tabor, Portland, OR | Newberg, OR | Oregon City, OR | Portland, OR | Salem, OR | Sherwood, OR
SW Portland, OR | Tigard, OR | Tualatin, OR | West Linn, OR | Wilsonville, OR
About Our Insulation Services
According to the Harvard University School of Public Health, 46 million homes in the US are under-insulated. In the Portland area, any home over 10 years old is almost certain to be under-insulated, with most homes having no insulation under the house. Proper insulation installation is about precision. Gaps, compression, or uneven coverage can drastically reduce effectiveness. Our professional installers are trained to apply insulation products correctly, ensuring optimal R-value performance and long-term durability.
Our comprehensive approach—combining energy assessment, air sealing, and expert installation—delivers reliable improvements in energy efficiency and comfort.
Features of Our Services
- One-time quick install – no hassle
- Non-invasive installation
- No maintenance
- Proper installation of optimal
- R-Value standards
- Processing of all the rebate
- Paperwork for qualifying
- Weatherization projects
The Benefits of New Insulation
- Reduced energy costs
- Improved comfort
- Increased home value
- Increased durability
- Consistent home temperature
- Reduced carbon footprint
- Improved Indoor Air Quality
Types of Insulation & Where They Work Best
Northwest Weatherization works with a range of high-quality insulation products tailored to specific areas of the home.
Fiberglass Insulation
Fiberglass insulation is widely used due to its reliability and affordability. It is commonly available in fiberglass batts or loose-fill form.
Best used in:
- Wall cavities
- Attic floors
- Between floor joists
When properly installed, fiberglass insulation helps minimize heat loss and improve energy efficiency.
Blown-In Insulation
Blown-in insulation (often fiberglass or cellulose-based) is ideal for filling irregular spaces and covering large attic areas evenly.
Best used in:
- Attics
- Enclosed wall cavities
- Hard-to-reach areas
It provides consistent coverage and helps reduce air leaks that contribute to energy loss.
Rigid Foam Insulation
Rigid foam insulation delivers a high R-value per inch and provides both thermal resistance and moisture control.
Best used in:
- Crawl spaces
- Basement walls
- Exterior wall sheathing
It is especially effective for reducing moisture-related concerns and improving air quality in below-grade areas.
The Importance of Air Sealing
Even the best insulation materials cannot perform properly if air leaks remain unaddressed. Air sealing prevents conditioned air from escaping and outdoor air from entering. By sealing gaps around ducts, attic access points, plumbing penetrations, and framing joints, we significantly reduce energy loss and enhance overall performance.
Air sealing also contributes to improved air quality by limiting dust, allergens, and pollutants entering the home.
Upgrade Your Home’s Efficiency Today
If your home is experiencing drafts, rising energy bills, or inconsistent temperatures, professional insulation installation can make a measurable difference. Northwest Weatherization provides expert guidance, high-quality insulation materials, and precision installation to reduce heat loss and improve overall performance. Contact our team today to schedule your energy assessment and take the first step toward a more comfortable, energy-efficient home.
