Compare the highest-rated insulation professionals in Honolulu, Hawaii. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading energy solutions company in Hawaii, specializing in comprehensive home performance upgrades. They are well-known for their professional energy audits and implementing holistic solutions that combine air sealing, insulation, and ventilation to maximize comfort and reduce utility bills. Their strong focus on science-based building performance makes them a top choice.
Pro-Tech is a dedicated insulation contractor with a strong local presence. They are recognized for their expertise in all major insulation types and their knowledge of local building codes and rebate programs. Customers frequently praise their professional crews, clean work, and effective results in improving home comfort.
A certified BPI Building Analyst and Envelope Professional company, Hawaii Energy Works focuses on data-driven home performance solutions. They excel at diagnosing and solving complex comfort and moisture issues in Hawaii's unique climate, offering services from insulation and air sealing to HVAC consulting. They are particularly adept with older homes.
The insulation market in Honolulu is characterized by high demand driven by the city's warm, humid climate and some of the highest electricity costs in the nation. The market is moderately competitive, with a mix of a few specialized, high-quality energy performance companies and several general contractors who offer insulation as part of broader services. The top-tier providers distinguish themselves through Building Performance Institute (BPI) certifications, advanced diagnostic tools (e.g., blower doors, infrared cameras), and a deep understanding of how to manage heat gain and moisture in a tropical marine environment. Typical pricing is above the national average due to the high cost of living, materials shipping, and the specialized knowledge required. For example, blown-in attic insulation can range from $1,500 to $4,500+, while a full home spray foam application can easily exceed $10,000. However, these costs are often justified by significant long-term energy savings, and homeowners are encouraged to explore available rebates from Hawaiian Electric and federal tax credits to offset the initial 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 Honolulu regulations and climate
Get answers to common questions about insulation services in Honolulu, Hawaii.
For our warm, humid climate, spray foam insulation (especially closed-cell) is highly effective as it provides both a thermal barrier and a critical air and moisture seal, preventing humid outdoor air from entering your home. This helps combat mold growth and improves air conditioner efficiency. Blown-in cellulose or fiberglass batts in attics are also common, but their performance heavily depends on proper air sealing being done first.
Costs are generally higher than the national average due to material shipping and local labor rates. For example, attic insulation for a 1,500 sq. ft. home can range from $1,800 to $4,500+, depending on material and scope. Hawaii Energy offers rebates for qualifying insulation upgrades that improve energy efficiency, which can significantly offset your cost, so always ask your contractor about current incentive programs.
Insulation can be installed year-round, but the cooler, drier months (roughly November to April) are often more comfortable for the extensive attic work required. However, since air conditioning is used constantly, there's no "off-season," and scheduling during these popular months should be done well in advance. The key is to complete the project before the peak summer heat and humidity arrive.
All work must comply with the current Hawaii State Building Codes, which are based on the International Energy Conservation Code (IECC). Honolulu has specific requirements for insulation R-values in different parts of the home (e.g., attic, walls). A reputable, licensed contractor will pull the necessary permits and ensure compliance, which is crucial for both safety and if you plan to sell your home later.
Always verify the contractor holds a valid C-5 (Sheet Metal) or C-43 (Insulation and Acoustical) license from the Hawaii Department of Commerce and Consumer Affairs (DCCA). Ask for local references, proof of insurance, and detailed written estimates. Choose a company experienced with Honolulu's specific climate challenges, such as managing humidity and venting, and one that conducts a thorough energy audit or assessment before proposing a solution.