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11 June 2025
Older homes have character, charm—and often—air leaks, drafty rooms, and sky-high energy bills. At Custom Insulation Company, Inc., we specialize in helping homeowners bring their historic or aging homes up to modern energy-efficiency standards without sacrificing their unique appeal. One of the best solutions? Spray foam insulation.
Spray foam is incredibly versatile, making it ideal for retrofitting insulation in hard-to-reach or problem-prone areas. Here are the best places to use spray foam insulation in an older home:
Attics are one of the biggest sources of energy loss in older homes. Spray foam can be applied directly under the roof deck or between rafters to create a tight thermal seal. This not only prevents heat loss in the winter but also keeps hot air out in the summer.
Pro tip: Spray foam helps regulate temperature and prevents ice dams in colder climates.
The rim joist—the area where the foundation meets the wooden structure—is a common source of drafts and moisture infiltration. Spray foam seals this vulnerable gap, helping to improve comfort and prevent mold growth.
Bonus: Helps keep basements drier and more comfortable year-round.
Older homes often lack adequate wall insulation. Spray foam can be injected into wall cavities through small holes, making it a minimally invasive way to upgrade insulation without major demolition.
Result: Improved indoor comfort, less outside noise, and better energy savings.
Crawl spaces are notorious for bringing in cold air and moisture. Closed-cell spray foam insulation acts as both a vapor barrier and an insulator, protecting your home from below.
Tip: Combine spray foam with crawl space encapsulation for best results.
In Cape Cod or bungalow-style homes, knee walls (short walls under sloped ceilings) often have little to no insulation. Spray foam seals these small, oddly shaped spaces efficiently.
Why it matters: Helps prevent uneven room temperatures upstairs.
Even if the rest of your home is insulated, small gaps around windows, doors, and pipe entries can lead to major heat loss. Spray foam expands to fill these gaps completely, stopping air leaks cold.
Result: Less draft, lower utility bills, and a cozier living space.
Older construction wasn't designed with modern insulation in mind. Unlike traditional materials like fiberglass or cellulose, spray foam expands to fill gaps, seals air leaks, and adds structural strength. It's also ideal for irregular spaces and tight areas that are common in older buildings.
Retrofitting an older home with spray foam insulation requires precision and experience. At Custom Insulation Company, Inc., we’ve been helping homeowners across Massachusetts and beyond upgrade their comfort and energy performance for decades.
4 June 2025
So you’ve made the smart decision to insulate your home with spray foam—great choice! Whether you're aiming to boost energy efficiency, eliminate drafts, or reduce noise, spray foam is one of the best long-term investments you can make in your home.
But before installation day arrives, there are a few key things you’ll need to do to get your home ready. At Custom Insulation Company, Inc., we want your install process to be smooth and successful. Here’s how to prepare for spray foam insulation day like a pro.
Our technicians need full access to the areas being insulated—whether that’s the attic, basement, crawl space, or walls. Be sure to:
Spray foam installation involves specialized equipment, noise, and temporary exposure to strong odors. For their safety and comfort:
In some cases, it’s best for everyone to vacate the home for a few hours post-install (we’ll advise based on your project)
If your attic or walls house electrical wires or plumbing, let us know in advance. We may need to:
Not sure if you need to remove drywall? Wondering about cleanup or timelines? Give us a call. At Custom Insulation Company, Inc., we believe in transparency. We’ll walk you through:
Our team will arrive on time, prepared, and ready to deliver high-quality results. We take extra care to:
Apply spray foam cleanly and evenly
With decades of experience, we’re here to make sure your investment in spray foam pays off for years to come.
Prepping your home is the first step toward a quieter, more comfortable, and energy-efficient space. If you have any concerns or questions about what to do before your appointment, contact Custom Insulation Company, Inc.
25 May 2025
As homebuyers become more focused on energy efficiency, comfort, and sustainability, the demand for high-performance homes is rising fast. And when it comes to meeting those standards, more and more builders are turning to spray foam insulation as their go-to solution.
At Custom Insulation Company, Inc., we work closely with homebuilders throughout the region to deliver insulation solutions that go beyond code—and spray foam consistently comes out on top.
A high-performance home is designed and built to:
To meet those goals, every part of the home’s envelope needs to work in harmony—and insulation is a critical component.
1. Unmatched Air Sealing
Unlike fiberglass or cellulose, spray foam expands on application, sealing even the smallest gaps and cracks. This minimizes air leakage, which is one of the leading causes of energy loss in homes.
Result: A tighter building envelope with better control over indoor temperatures and moisture.
2. Superior R-Value per Inch
Closed-cell spray foam has a high R-value (around R-6.0 to R-7.0 per inch), offering better thermal resistance than traditional insulation. This allows builders to meet or exceed energy codes with less material and wall thickness.
3. Structural Strength
Closed-cell spray foam adds rigidity to walls and roofing systems, making homes more resilient against wind and weather—especially beneficial in storm-prone regions.
4. Moisture Barrier
Spray foam resists moisture, helping prevent mold and mildew. This is especially important in basements, crawl spaces, and attics where condensation and humidity can lead to costly damage.
5. Fewer Callbacks
Builders appreciate fewer homeowner complaints related to drafts, cold spots, or uneven temperatures. Spray foam delivers consistent performance year-round, reducing the likelihood of post-construction issues.
With building codes becoming stricter—especially in energy-efficiency and air-sealing requirements—spray foam helps builders stay compliant while adding long-term value to the home. It’s an investment that pays off in both performance and buyer satisfaction.
At Custom Insulation Company, Inc., we specialize in spray foam solutions tailored to your building needs—whether you're working on a custom home, subdivision, or energy-efficient remodel.
From consultation to professional installation, we’re here to support your project and deliver results that exceed expectations.
20 May 2025
When most homeowners think about insulation, they think about comfort and energy savings. But did you know the right insulation can also help you breathe easier and live healthier? At Custom Insulation Company, Inc., we believe your home should be a sanctuary — and spray foam insulation plays a key role in making that happen.
Spray foam insulation forms an airtight seal that reduces the amount of outdoor pollutants, allergens, and dust entering your home. Unlike traditional fiberglass insulation, spray foam doesn’t leave gaps or allow air to leak in, keeping airborne irritants where they belong — outside.
Fewer allergens in the air = easier breathing for everyone, especially those with asthma or allergies.
Spray foam doesn’t just insulate — it also acts as a moisture barrier. By sealing cracks and crevices, it helps prevent humid air and condensation from getting into walls, attics, and crawl spaces. This is crucial for avoiding mold growth, which can cause respiratory issues and long-term structural damage.
A quieter home is a more peaceful home. Spray foam helps to dampen sound by filling in gaps where noise typically travels. Whether it’s outside traffic or room-to-room noise, spray foam adds an extra layer of soundproofing comfort.
Because spray foam tightly seals all the nooks and crannies, it creates a barrier that’s tough for insects and rodents to get through. That means fewer unwanted guests in your home — and less risk of contamination or health hazards from pest infestations.
By eliminating drafts and hot/cold spots, spray foam helps maintain stable temperatures throughout your home. Not only does this boost comfort, but it also reduces the strain on your HVAC system — promoting better air circulation and reducing indoor humidity swings that can trigger allergies.
At Custom Insulation Company, Inc., we specialize in professional spray foam installation that enhances comfort, saves energy, and supports better health. Whether you’re building new or upgrading your current insulation, we’re here to help you make smart, lasting improvements.
Contact us today to schedule a consultation or learn more about how spray foam can transform your home — from the inside out.
12 May 2025
At Custom Insulation Company, Inc., we believe sustainability isn’t just a buzzword — it’s a commitment to smarter, healthier, and more energy-efficient construction. That’s why we proudly specialize in spray foam insulation, one of the most impactful ways to support green building practices from the ground up.
Exceptional Energy Efficiency
Spray foam acts as both insulation and an air sealant, dramatically reducing heat loss in the winter and heat gain in the summer. The result? Lower energy use, reduced utility bills, and a significantly smaller carbon footprint over the life of the building.
Healthier Indoor Air Quality
By sealing cracks, gaps, and air leaks, spray foam keeps out allergens, pollutants, and moisture — reducing the risk of mold and improving overall indoor air quality. That makes it a win for both the planet and your family’s well-being.
Long-Term Durability
Unlike traditional insulation that can sag or degrade over time, spray foam is designed to last. This longevity reduces the need for replacement, saving materials, labor, and waste in the long run.
Supports LEED, ENERGY STAR & Green Certifications
For homeowners and builders aiming for LEED certification or Energy Star compliance, spray foam plays a crucial role. Its performance characteristics directly contribute to points in energy efficiency, indoor air quality, and building envelope performance.
If you're a builder, architect, or homeowner looking to create a more sustainable, energy-conscious building — spray foam should be part of your foundation.
Learn more about our spray foam solutions and how we’re helping New London build better. Contact Custom Insulation Company, Inc. today!
30 April 2025
When it comes to insulation, homeowners are often told to "look at the R-value." But what does that really mean? At Custom Insulation Company, Inc., we believe in helping our customers make informed decisions, and understanding R-value is key to choosing the right insulation for your home.
R-value measures how well a material resists heat flow—essentially, how good it is at insulating. The higher the R-value, the greater the material’s insulating power. This means better energy efficiency, more consistent indoor temperatures, and lower utility bills.
Think of it like wearing a coat: a thicker, better-insulated coat (higher R-value) keeps you warmer in the winter. The same principle applies to your home.
Here in Massachusetts, we deal with cold winters and hot summers. Proper insulation helps maintain a comfortable indoor environment year-round, reducing the strain on your HVAC system and keeping energy costs in check.
The recommended R-value depends on your home's location, age, and specific area being insulated (attic, walls, basement, etc.). In New England, here are some general guidelines:
Our team at Custom Insulation can assess your home and help you choose the right insulation to meet or exceed these recommendations.
Spray foam insulation, one of our specialties, offers some of the highest R-values per inch compared to other materials.
Beyond R-value, spray foam also seals air leaks, adds structural support, and helps with moisture control—a triple win for your home.
If you’re wondering whether your insulation is doing its job, or you're planning a new build or remodel, understanding R-value is just the first step. At Custom Insulation Company, Inc., we’re here to help you make the best choice for long-term comfort and savings.
26 April 2025
Spring cleaning isn’t just about closets and garages—it’s the perfect season to think about what’s above and below your living space: your attic and crawl space. If your home isn’t properly insulated, you could be losing valuable energy (and money) all year long. The good news? Spring is the ideal time to upgrade your insulation—especially with energy-efficient spray foam.
Here’s why:
As the weather warms up, attics can become hot zones, making your air conditioning work harder—and your energy bills climb. Spray foam insulation forms an airtight seal that keeps cool air in and hot air out, helping your home stay comfortable all summer long.
Spring temperatures are just right—not too hot, not too cold—for spray foam application. This means better curing, better performance, and fewer delays in installation. Whether it's your attic or a damp, musty crawl space, conditions are ideal for sealing things up properly.
Crawl spaces and attics are prime entry points for pests like mice, insects, and even squirrels in warmer months. Spray foam insulation fills gaps and crevices where unwanted guests sneak in, helping you prevent infestations before they become a problem.
Spring allergies? A poorly insulated attic or crawl space can let pollen, dust, and mold spores into your home. Spray foam acts as a barrier against allergens and moisture, improving the air you and your family breathe every day.
The sooner you insulate, the sooner you start saving. Spray foam insulation not only improves energy efficiency but can also qualify you for local rebates and tax incentives—many of which are available now for 2025.
At Custom Insulation Company, Inc., we specialize in high-performance spray foam insulation for homes across CT. Whether you're prepping for summer or just want to make your home more efficient year-round, spring is the time to act.
Call us today or request a free estimate online. Let’s make your attic and crawl space spring-ready!
18 April 2025
If you're looking to make your home more energy-efficient and put hard earned cash back into your wallet, one of the best places to start is with your insulation. At Custom Insulation Company Inc., we’ve seen firsthand how upgrading to spray foam insulation can drastically improve home efficiency and reduce your overall carbon footprint. Let’s break down how it works—and why it matters.
Your carbon footprint is the total amount of greenhouse gases—mainly carbon dioxide (CO₂)—that your household produces through activities like driving, heating, cooling, and electricity use. A major contributor to that footprint? Energy loss through poor insulation. Where Energy Loss Happens
In most homes, heating and cooling account for nearly half of the energy bill. But what many people don’t realize is how much of that energy is wasted due to:
Spray foam insulation is a high-performance solution that:
By requiring less energy to maintain a comfortable temperature, you use less electricity or fuel—which translates directly to fewer emissions.
Switching to spray foam insulation can:
And with the added benefit of durability—spray foam can last 20+ years—you’re making a long-term investment in sustainability.
At Custom Insulation Company Inc., we specialize in high-quality spray foam applications that are tailored to your home’s specific needs. Whether you’re building new or upgrading your current insulation, we’re here to help you take real, measurable steps toward a greener, more energy-efficient future.
Contact us today for a free consultation and energy assessment!
8 April 2025
If you own and/or rent commercial real estate space, you understand the role that operations cost plays in your profitability. Climate control and electricity in general play a major factor in the bottom line, your net profit. Reducing energy cost every month is a path to improved profitability. Spray foam insulation services can keep your revenue in your pocket, and not throw it away through the roof.
At Custom Insulation Company, Inc., we’re proud to offer spray foam insulation that supports profitable energy efficiency. Here’s how it helps:
Spray foam creates an airtight seal that reduces energy loss, making it one of the most effective insulation options for maintaining consistent temperatures and improving energy efficiency. This is essential for earning points in certifications like LEED.
Spray foam is a long-lasting, eco-friendly solution. Unlike traditional insulation, it doesn’t degrade over time and requires fewer replacements, helping to reduce waste and support sustainable building practices.
Spray foam helps seal gaps and cracks, reducing moisture buildup and preventing pollutants from entering. This contributes to a healthier indoor environment, a key factor in certifications like Well Building Standards.
Spray foam provides an excellent moisture barrier, preventing mold growth and water infiltration. This is critical for meeting certification standards that focus on moisture management and building longevity.
Spray foam is also effective at soundproofing, reducing noise transmission between rooms and improving the acoustics of the space—another benefit that can help meet green certification criteria.
At Custom Insulation Company, Inc., we specialize in providing spray foam insulation that meets the highest standards of energy efficiency, sustainability, and performance. Our team is here to help you achieve your green building goals while reducing energy costs and creating healthier, more comfortable spaces.
Interested in learning how spray foam insulation can help your building earn a green certification? Contact us today to find out more!
31 March 2025
At Custom Insulation Company, Inc., we understand that keeping your commercial property comfortable, energy-efficient, and cost-effective is a top priority. That’s why spray foam insulation is the perfect solution for your building.
At Custom Insulation Company, Inc., we specialize in spray foam insulation for commercial properties. Our team of experts will ensure the job is done right, providing a seamless application that meets your needs and exceeds expectations.
16 Jacques Street - Rear
Worcester, MA 01603
Phone: 508-755-2315
Fax: 508-756-1941
E-mail: info@custominsulation.com
