Compare the highest-rated insulation professionals in Allentown, Pennsylvania. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, locally-operated branch of a national brand specializing in eco-friendly insulation solutions. They are known for their thorough energy audits, educational approach with homeowners, and use of recycled materials in their blown-in cellulose and fiberglass services.
A well-established, family-owned contractor with a strong focus on comprehensive home performance, including insulation and air sealing. They are recognized for their professionalism, deep knowledge of local building codes, and ability to handle complex projects from attic to basement.
A dedicated insulation contractor based in nearby Zionsville that serves the entire Lehigh Valley, including Allentown. They focus exclusively on insulation services, offering a wide range of materials and methods. Their expertise is often highlighted in customer reviews for both new construction and retrofit projects.
** The insulation market in Allentown is competitive and service-rich, driven by the city's mix of historic housing stock and newer developments, all subject to Pennsylvania's variable climate. The average quality of providers is high, with several long-standing, reputable contractors competing with specialized, newer companies. Homeowners are increasingly aware of energy efficiency, leading to high demand for services like air sealing and spray foam insulation. Typical pricing is market-rate, with attic blown-in insulation for an average home ranging from $1,500 to $3,500, and spray foam projects costing significantly more. Many providers are well-versed in local utility rebate programs, such as those from PPL, which can help offset project costs. The most successful contractors differentiate themselves through comprehensive home performance audits and certifications (like BPI), rather than just insulation installation alone.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Allentown regulations and climate
Get answers to common questions about insulation services in Allentown, Pennsylvania.
For Allentown's humid summers and cold winters, a combination of air sealing and high-R-value insulation is key. We typically recommend spray foam for its superior air-sealing properties or dense-packed cellulose/blown-in fiberglass for existing walls and attics. The target R-value for attics in our climate zone (Zone 5) should be R-49 to R-60 to ensure energy efficiency and comfort year-round.
Costs vary based on material, home size, and accessibility, but a typical attic insulation project in Allentown ranges from $1,500 to $4,500. Pennsylvania offers no direct state tax credits, but you may qualify for federal energy efficiency tax credits (like the 25C credit) for eligible upgrades, which can provide significant savings. Always get a detailed, written estimate from your local contractor.
While insulation can be installed year-round, the ideal times are late spring (April-May) and early fall (September-October). These periods typically offer milder weather, making it easier for contractors to perform air sealing and for materials like spray foam to cure properly. Scheduling during these shoulder seasons also ensures your home is prepared for both the intense summer heat and the harsh Pennsylvania winter.
Always verify the contractor is properly licensed and insured in Pennsylvania. Look for local companies with strong references in the Lehigh Valley and ask if they perform a pre-installation energy audit or use tools like blower door tests to identify air leaks—a critical step for our climate. Membership in organizations like the Building Performance Institute (BPI) is a strong indicator of expertise in whole-home performance.
Adding insulation is crucial, but air sealing is often the more critical first step for Allentown's historic and older homes. Drafts are caused by air leaks through gaps, not just insufficient insulation. A professional assessment should target areas like attic bypasses, rim joists, and around windows. Properly sealing these leaks before insulating prevents moisture buildup (which can lead to mold in our humid summers) and maximizes the effectiveness of your new insulation.