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Paramount InsulationPlease wait while we prepare your content
Professional Basement Insulation Services
Transform your damp, cold basement into a comfortable, energy-efficient space with our professional insulation solutions.
Basements are often the most neglected space in a home, yet they represent significant energy loss and comfort issues. A properly insulated basement can reduce your heating and cooling costs by up to 30% while preventing moisture problems and mold growth. On Long Island, where many homes have full or partial basements, this represents a major opportunity for energy savings and comfort improvements.
Our basement insulation solutions address moisture control, thermal performance, and air quality to create a healthy, comfortable environment. Long Island's high water table, coastal humidity, and temperature extremes make basement insulation particularly important—and challenging. That's why professional installation with proper moisture management is essential for long-term success.
Whether you're finishing your basement for additional living space, trying to eliminate cold floors above, or simply want to reduce energy waste, proper basement insulation delivers multiple benefits. From preventing frozen pipes during harsh winters to controlling humidity in summer, basement insulation is one of the most cost-effective home improvements you can make in Suffolk and Nassau County.
Long Island's unique geology and climate create specific basement insulation challenges that require specialized solutions:
Long Island's proximity to the ocean and relatively high water table means many basements deal with moisture issues. Traditional fiberglass insulation can trap moisture and promote mold growth. Our solutions use moisture-resistant materials like closed-cell spray foam or rigid foam boards with proper vapor barriers to prevent water intrusion while insulating effectively.
Uninsulated basements in Long Island can be 10-15°F colder in winter and actually warmer in summer. This creates uncomfortable conditions, cold floors above, and significant energy waste as your HVAC system works overtime. Proper basement insulation creates a thermal barrier that maintains consistent temperatures year-round and reduces the load on your heating and cooling systems.
Many Long Island homes were built before modern building codes required basement insulation. Homes from the 1950s-1980s often have completely uninsulated basements with stone or poured concrete foundations. These older construction methods are particularly vulnerable to moisture issues and energy loss, making professional basement insulation and encapsulation especially beneficial.
Damp, uninsulated basements attract pests and provide ideal conditions for mold growth. Long Island's humid summers and temperature fluctuations create condensation that feeds these problems. Proper insulation with vapor barriers and air sealing eliminates the moisture and temperature conditions that pests and mold need to thrive, protecting your home's air quality and structural integrity.
Complete air sealing and moisture barrier. Perfect for finished or unfinished basements.
Durable panels that provide excellent moisture resistance and thermal performance.
Traditional insulation method for simple installations and budget-conscious projects.
Prevent water vapor from entering your basement, reducing mold and mildew growth.
Reduce heating and cooling costs by maintaining consistent basement temperatures.
Transform cold, damp basements into comfortable living or storage spaces.
Reduce allergens and improve indoor air quality with proper moisture control.
A finished, insulated basement adds significant value to your home.
Protect your home's foundation from temperature fluctuations and moisture damage.
Moisture & Mold
Prevent water vapor intrusion and mold growth
Cold Floors
Warm up floors above the basement
High Humidity
Control humidity levels and prevent condensation
Poor Air Quality
Improve ventilation and air circulation
Vapor Barriers
Prevent moisture from entering walls and floors
Rim Joist Insulation
Seal the critical junction between basement and first floor
Foundation Wall Insulation
Exterior or interior insulation for maximum thermal protection
Dehumidification
Control moisture levels for healthy indoor air
Real results from basement insulation projects across Suffolk and Nassau County:
1,600 sq ft | Built 1968 | Rim joist spray foam + fiberglass walls
Before:
After:
2,000 sq ft | Built 1973 | Closed-cell spray foam basement walls
Before:
After:
2,800 sq ft | Built 1985 | Full basement insulation and encapsulation
Before:
After:
Basement insulation requires careful attention to moisture management and building science. Our proven process ensures long-lasting results and maximum energy savings.
We inspect for moisture issues, test humidity levels, check for existing mold or water damage, evaluate foundation condition, and assess current insulation (if any). We use moisture meters and thermal imaging to identify problem areas that need special attention before insulation.
Timeline: 1-2 hours | Includes moisture testing and thermal imaging
If we identify active moisture problems, we address them before insulation. This may include repairing foundation cracks, improving drainage, installing or upgrading sump pumps, or applying waterproofing coatings. Insulating over moisture problems will only make them worse—we do it right the first time.
Timeline: Varies by issue severity | Essential for long-term success
The rim joist area (where your foundation meets the first floor) is a major source of air leakage and cold floors. We seal this area with spray foam insulation to create an airtight thermal barrier. This single improvement often makes the biggest impact on first-floor comfort and is critical for Long Island homes dealing with winter cold.
Timeline: 2-4 hours | Eliminates cold floor drafts
We install your chosen insulation system—spray foam, rigid foam boards, or fiberglass batts—based on your specific needs and budget. For maximum moisture protection, we recommend closed-cell spray foam or rigid foam with sealed edges. All work is done to code with proper fire blocking where required.
Timeline: 1-2 days depending on basement size
We install vapor barriers as needed, seal all penetrations and edges, ensure proper clearances around mechanicals, and verify complete coverage. If you're finishing the basement, we coordinate with your contractor to ensure proper installation sequence and building code compliance.
Timeline: 4-6 hours | Ensures moisture protection
Final inspection to verify all areas are properly insulated, moisture barriers are sealed, ventilation is adequate, and all work meets building codes. We document the installation with photos, provide care instructions, and explain how to maintain your basement's health long-term.
Timeline: 1-2 hours | Your peace of mind guaranteed
Stop wasting energy and dealing with moisture problems. Get your free basement insulation assessment.