Compare the highest-rated insulation professionals in Northport, New York. All contractors are licensed, insured, and verified through our rigorous screening process.
A family-owned and operated business with a stellar reputation for comprehensive insulation and air sealing services. They are known for their professionalism, deep expertise in both new construction and retrofit projects, and their focus on improving home energy efficiency. They often assist homeowners with understanding available rebates.
This provider specializes in high-performance spray foam applications but offers a full suite of insulation services. They are praised for their technical knowledge, clean installation practices, and effectiveness in tackling difficult moisture and air leakage problems in basements and crawl spaces.
As the name implies, this company takes a holistic, diagnostic approach to home performance. They often begin with energy audits to identify the root causes of energy loss, then provide targeted solutions including insulation, air sealing, and ventilation services. They are particularly strong with older homes common in Northport.
** The insulation market in and around Northport, NY, is robust and competitive, driven by the region's cold winters, humid summers, and high energy costs from providers like PSEG Long Island. The average quality of service is high, as contractors must adhere to strict New York State and local building codes. There is a strong emphasis on energy efficiency, with many homeowners seeking to take advantage of rebate programs from NYSERDA (New York State Energy Research and Development Authority) which the leading contractors are well-versed in. The competition level is moderate to high, with several established local players dominating the market. Pricing is typically at a premium compared to national averages, reflecting the higher cost of living and business operations on Long Island. For a standard attic blown-in cellulose job, homeowners can expect to pay between $1,500 - $3,500, while more complex spray foam installations or full-home retrofits can range from $5,000 to $15,000+. The most reputable contractors are often in high demand, so scheduling consultations well in advance of the heating or cooling season is advisable.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Northport regulations and climate
Get answers to common questions about insulation services in Northport, New York.
For Northport's humid, coastal climate with cold winters and warm summers, spray foam insulation is often highly recommended for older homes. It provides an excellent air and moisture barrier, which is critical for preventing mold and improving energy efficiency against our seasonal nor'easters. However, for attics, blown-in cellulose or fiberglass can be a very effective and cost-efficient choice, especially when addressing the significant heat loss common in historic Northport Village homes.
For a standard 1,500 sq ft attic in Northport, adding blown-in insulation to reach the recommended R-49 for our climate zone can range from $1,500 to $3,000, depending on material and accessibility. Homeowners should check for rebates from the New York State Energy Research and Development Authority (NYSERDA), which offers incentives through participating contractors, and also inquire with PSEG Long Island for potential programs that can significantly offset the upfront cost.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is important for certain insulation materials and for ventilating your home during installation. Scheduling in these off-peak seasons also ensures better contractor availability compared to the last-minute rush many experience heading into our cold Long Island winters.
Always verify the contractor is licensed and insured to work in New York State and specifically familiar with Suffolk County building codes. Look for established local companies with strong references in the Northport area, as they will understand the specific challenges of our older home stock and coastal weather. Crucially, ensure they provide a detailed, written estimate that includes the R-value, material specifications, and a clear scope of work.
Absolutely. Proper air sealing and insulation are the primary defenses against the persistent drafts and uneven temperatures common in Northport homes exposed to winds off the Long Island Sound. By sealing leaks in attics, basements, and walls, you directly combat the cold spots and drafts, leading to a consistently comfortable home year-round, quieter interiors by buffering outside noise, and of course, lower heating and cooling costs.