Are you struggling with high energy bills in an older home or uncomfortable winter drafts?
Injection foam insulation fills empty wall cavities without removing drywall, helping homeowners brave frigid NEPA winters with comfort, reduce energy waste, and eliminate air leaks.
Many homes throughout Northeast Pennsylvania–especially older homes in Scranton, Wilkes-Barre, Stroudsburg, and surrounding communities–were built before modern insulation standards.
Residents of older homes with poor insulation often experience uneven temperatures, higher energy bills, and constant strain on the HVAC system.
Injection foam insulation solves this problem without demolition. By filling existing wall cavities through small access points, injection foam expands to seal gaps, block air movement, and improve thermal performance from the inside out.
Whether you own an older home with no wall insulation or a property with underperforming fiberglass batts, injection foam delivers measurable comfort improvements without demolishing finished spaces.
How Retrofit Injection Foam Benefits NEPA Homeowners
- Lowered Utility Bills
- Reduced Drafts
- Increased Home Comfort
- Flexible Installation
- Unintrusive
- Reduced Risk of Mold or Mildew
- Noise Reduction
Why NEPA Residents Trust EnergySmart for Their Injection Foam Services
- 4.7-Star Rated Local Company: Trusted by homeowners throughout Scranton, Wilkes-Barre, the Poconos, and surrounding Northeast Pennsylvania communities.
- Specialists in Older Homes: Experience insulating homes built before modern energy codes, where wall cavities are often empty.
- Minimal Disruption Process: Finished walls are insulated without large-scale demolition or reconstruction.
- Precision Installation: Even cavity fill that provides air sealing and improves whole-wall performance.
- Clear Project Communication: Detailed inspections and straightforward recommendations before work begins.
Even With Insulation, Your Walls Could Still Be Allowing Cool Airflow
Traditional insulation materials like fiberglass batts are designed to slow heat conduction, but they do little to stop heat convection, or air movement.
When air can move freely inside wall cavities, it carries heat with it. That means cold outdoor air can circulate through your walls in winter, and hot, humid air can infiltrate in summer.
The result is:
- Noticeable drafts along exterior walls
- Cold wall surfaces in winter
- Uneven room temperatures
- Higher heating and cooling bills
- Limited sound control between rooms
If wall cavities are partially insulated, poorly installed, or completely empty—a common issue in older Scranton and Wilkes-Barre homes—airflow can continue unchecked behind finished drywall.
Injection foam addresses both conduction and airflow by filling gaps and reducing air movement inside enclosed wall spaces.
Expert Foam Injection Fills Finished Spaces with Little Disruption
Injection Foam insulation is a cost-effective material designed to re-insulate older homes, even if the wall cavity is partially filled with old, ineffective insulation.
By creating an air seal, the insulation foam injection material can prevent airflow, trap noise, and limit heat transfer, helping eliminate cold drafts during winter.
This makes injection foam a very affordable alternative to many other insulating materials, including spray foam or blown-in fiberglass, especially for older homes.
In turn, homeowners can enjoy many benefits from investing in foam injection insulation, including:
- Improved comfort in finished rooms
- Reduced air infiltration
- More consistent indoor temperatures
- Better overall energy performance
Because the process works within existing walls, homeowners can upgrade insulation without sacrificing finished living space.
FAQs
How does injection foam work?
Injection foam flows through gaps and across old material to fill the wall cavity, blocking heat convection and conduction. In turn, the foam creates an air seal that fully insulates your walls and increases their R-value.
Injection foam consists of an environmentally safe resin material that’s mixed with water and a foaming agent that allows it to expand easily. However, once inside your walls, the material will settle and remain still throughout its lifespan.
How is retrofit wall insulation installed?
EnergySmart features a team of professionals ready to handle all your insulation needs. The process is simple: our team will remove a panel of siding, drill a hole into your studs, and then inject the foam material into your walls, where it will fill any available space to create an air seal.
Our foam injection material can be used with any type of siding, including vinyl, wood, aluminum, concrete, and brick.
Depending on your type of siding, injection foam can be inserted through the interior or exterior of the home.
In some cases, such as concrete, multiple holes may need to be drilled into the siding to allow the foam material to be installed. Nevertheless, injection foam is the perfect solution to insulate Concrete Masonry Units and hollow walls in new construction and older homes.
How do I know if my walls are uninsulated?
Homes built before the 1980s in Northeast Pennsylvania often have little to no wall insulation. Common signs include cold exterior walls in winter, noticeable drafts, uneven room temperatures, and higher heating bills. Our inspectors can confirm whether wall cavities are empty or underperforming.
Will injection foam stop drafts?
Yes. Unlike traditional fiberglass batts, injection foam expands to reduce air movement inside wall cavities. Limiting airflow (convection) helps eliminate drafts that occur even when some insulation is present.
Can injection foam improve sound control?
Yes. By densely filling wall cavities, injection foam can help reduce sound transfer between rooms and from outside noise sources, especially helpful in older homes with thin exterior walls.
Will my siding or drywall be damaged during installation?
Installation requires small, controlled access points that are sealed and restored after the foam is injected. The process is far less disruptive than removing drywall or opening walls completely.






