Compare the highest-rated insulation professionals in Portage, Wisconsin. All contractors are licensed, insured, and verified through our rigorous screening process.
A-1 Insulation is a leading provider in Southern Wisconsin with a strong reputation for comprehensive home performance services. They are not just installers; they are energy efficiency experts who conduct detailed assessments to ensure their solutions—whether spray foam, blown-in, or batt insulation—are tailored to maximize comfort and savings. Their team is well-versed in local utility rebates.
Based in Lodi, All Comfort Insulation is a family-owned business that has built a strong reputation for quality workmanship and customer service in the communities surrounding Portage. They offer a full suite of insulation services with a particular focus on modern solutions like spray foam and dense-pack cellulose for existing walls.
Located in Baraboo, Energy Services is a trusted local contractor that specializes in making older Wisconsin homes more efficient and comfortable. They have extensive experience with insulation removal and replacement in attics and walls, and they pair this with professional air sealing to address the root causes of energy loss.
** The insulation market in Portage, Wisconsin, is characterized by a high demand for energy efficiency upgrades, driven by the city's mix of historic homes and newer constructions, all subject to harsh Midwest winters. While there are few dedicated insulation companies physically located within Portage city limits, the market is competitively served by established contractors from neighboring hubs like Baraboo, Lodi, and Madison. These providers bring professional expertise, proper licensing, and knowledge of programs like Focus on Energy rebates. The average competition level is moderate, ensuring good options for consumers. Typical pricing is in line with regional averages, with basic attic blown-in cellulose projects starting in the $1,500-$3,000 range, while more complex whole-home solutions involving spray foam and air sealing can range from $5,000 to $15,000+, heavily dependent on home size and scope of work. Homeowners are advised to seek multiple quotes and confirm that contractors perform a pre-work energy audit to justify the investment.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Portage regulations and climate
Get answers to common questions about insulation services in Portage, Wisconsin.
For our cold Wisconsin winters and humid summers, attic insulation is the most critical upgrade. Properly insulating your attic to at least R-49 (approximately 16-18 inches of blown-in cellulose or fiberglass) creates a thermal barrier that prevents heat from escaping through the roof in winter and keeps your home cooler in summer. This directly combats Portage's significant temperature swings and reduces strain on your heating and cooling systems year-round.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is crucial for proper installation, especially for materials like spray foam that require specific temperature ranges. Scheduling during these shoulder seasons also ensures the work is completed before the extreme cold sets in, allowing you to maximize energy savings during the peak heating season.
Yes, Portage homeowners should first check with Focus on Energy, Wisconsin's statewide energy efficiency program, which offers cash-back rebates for qualifying insulation improvements. Additionally, Columbia County or the City of Portage may occasionally have local programs, and federal tax credits for insulation are often available. A reputable local installer will be knowledgeable about current incentives and can often help you with the application process.
Look for a licensed, insured contractor with specific experience in Wisconsin's climate. Verify they conduct a thorough energy audit or inspection before providing a quote. Check for local references and reviews, and ensure they are familiar with Focus on Energy program requirements if you're seeking rebates. Local companies based in Columbia County or the surrounding area often have the best understanding of regional building practices and common issues in older Portage homes.
Air sealing is absolutely essential and should be done *before* adding new insulation. In an older home, drafts from leaks around windows, doors, and penetrations in the attic floor can undermine even the highest R-value insulation. A comprehensive approach that seals these air leaks first, then adds the proper amount of insulation, is the only way to achieve true comfort and efficiency, addressing both conduction and convection heat loss common in our windy Wisconsin climate.