Keep your home warmer, drier, and more energy-efficient starting from the ground up.
If your basement feels cold, damp, or drafty, chances are it’s under-insulated. At Rocket Insulation & Coatings, we specialize in high-performance basement insulation that helps Long Island homeowners reduce energy bills, prevent moisture problems, and enjoy year-round comfort.
Serving Great Neck, Suffolk County, Nassau County & surrounding areas.
Do You Need Basement Insulation?
Here are the most common signs your basement may be costing you comfort and money:
- Rising energy bills with no clear cause
- Cold floors or drafts near the basement
- Pests like rodents or insects sneaking in
- Moisture, leaks, or frozen pipes
- Uneven temperatures throughout your home
- High indoor humidity or musty odors
- Mold or mildew on walls or floors
If you’ve noticed any of these, it’s time to talk to a basement insulation expert.
Best Types of Basement Insulation
We offer a range of insulation materials tailored to your home’s structure, moisture levels, and budget. Our most popular options include:
| Insulation Type | Benefits | Best For |
| Spray Foam | Air seals + moisture barrier, mold-resistant, high R-value | Rim joists, walls, hard-to-reach areas |
| Rigid Foam Boards (EPS/XPS) | Water-resistant, easy to install, cost-effective | Basement walls, behind drywall |
| Mineral Wool Boards | Fire-resistant, soundproofing, moisture-tolerant | Between studs, sound-sensitive areas |
We’ll help you choose the right material based on your basement’s condition and your energy goals.
What R-Value Do You Need in Long Island?
Long Island is in Climate Zone 4, which means:
- Basement walls: R-10 to R-13
- Slab insulation: Minimum R-10
- Rim joists: R-13 to R-19 recommended
We adhere to all IECC building codes and local regulations to ensure your home meets compliance standards and is energy efficient.
Common Basement Insulation Mistakes to Avoid
Many homeowners unknowingly make costly errors when insulating their basements. Here’s what we help you avoid:
- Skipping air sealing before insulating
- Using fiberglass batts (they trap moisture)
- Ignoring rim joists (a major source of air leaks)
- Improper vapor barrier placement
- Over-insulating without moisture control
Our team ensures that every step—from preparation to installation—is done right the first time.
Why Choose Rocket Insulation?
- Local experts with deep knowledge of Long Island homes
- Fully licensed, insured & code-compliant
- High-performance materials from trusted brands
- Transparent pricing & detailed estimates
- Backed by the Installed Building Products family
Whether you’re finishing your basement or want to stop the drafts, we’ll help you insulate smarter.
Ready to Upgrade Your Basement?
Don’t let your basement be the weak link in your home’s comfort. Contact Rocket Insulation today to schedule your free consultation in Great Neck or anywhere on Long Island.