Is your garage freezing in winter or sweltering in summer? If you have a bedroom or office above the garage or if you use the space as a workshop, gym, or storage area, poor insulation can seriously affect comfort, energy efficiency, and even indoor air quality.
At Spray Foam Long Island, we offer spray foam garage insulation for both attached and detached garages across Long Island. Whether you want to make the garage more usable or improve the comfort of rooms adjacent to it, we provide high-performance solutions that last for decades.
Most garages, especially older homes, have little to no insulation. That means air, heat, and even vehicle fumes can pass through the garage into your home. For attached garages, this affects any bonus rooms above, adjacent walls, and even interior air quality. For detached garages, insulation can help convert the space into a usable year-round workshop or hobby zone.
Pro tip: If you’ve converted your garage to an office, studio, or living area (ADU), proper insulation is essential to meet local energy codes and keep the space comfortable year-round.
We use both open-cell and closed-cell spray foam, depending on your garage layout, usage, and goals. Open-cell is excellent for interior sound dampening and can fill irregular cavities, while closed-cell offers a higher R-value and acts as a vapor barrier ideal for exterior-facing garage walls.
We assess your garage’s current insulation, wall/ceiling access, and goals (e.g., improved comfort, noise control, code compliance).
We protect any stored items and remove drywall (if needed) to expose cavities for spray application, or insulate during new construction.
Foam is applied to garage ceilings (beneath bonus rooms), shared walls between the garage and home, and exterior garage walls.
We ensure foam is trimmed as needed and discuss finishing options (e.g., re-drywalling, garage ventilation, thermal barriers if required).
Do you have a bedroom, nursery, or office above your garage that always feels too cold in winter or too hot in summer? This is a common problem caused by poor insulation between the garage ceiling and the floor of the room above.
Attached Garages:
These are directly connected to your home, often sharing walls or ceilings with living spaces. We typically recommend insulating:
Be sure to check out our Wall Insulation Services, since garage walls adjoining your home essentially function as exterior walls and need a solid thermal barrier.
Detached Garages:
These are often converted into workshops, art studios, gyms, or accessory dwelling units (ADUs). Spray foam makes these spaces usable year-round.
We insulate:
Interested in additional comfort? See our Attic Insulation Services to complete your building envelope.
Spray foam requires access to wall or ceiling cavities. If drywall is already in place, we may need to remove panels or in some retrofit cases, small holes can be drilled for foam injection.
The change is often dramatic. Insulating garages can:
Yes, spray foam seals gaps and cracks where fumes and odors from vehicles or chemicals can seep into the house.
We typically focus on walls and ceilings. For doors, we recommend rigid foam panels or reflective kits, and weatherstripping to seal gaps around the edges. We’re happy to advise!
Don’t let your garage be the weak link in your home’s comfort and efficiency. Whether attached or detached, spray foam can transform it into a comfortable, usable space year-round.
Contact us for a free garage insulation inspection and estimate, no pressure, just professional guidance.
