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25 August 2025
As the construction industry evolves to meet the challenges of climate change and rising energy costs, more homeowners and builders are turning to Net-Zero and Passive House standards for long-term sustainability, comfort, and efficiency. At Custom Insulation Company, Inc., we’re proud to play a part in this movement by providing high-performance insulation solutions—especially spray foam insulation, which has become a critical component in meeting the demanding requirements of these energy-conscious building practices.
Spray foam insulation is known for its superior thermal performance, high R-value, and ability to create an effective air and moisture barrier in one application. Unlike traditional insulation materials, spray foam expands to fill gaps and cracks, significantly reducing air leakage—one of the leading causes of energy loss in both new and existing structures.
Passive House (or Passivhaus) buildings rely on a highly insulated and airtight envelope to drastically reduce heating and cooling needs. Because the Passive House standard permits minimal air infiltration, spray foam is an ideal choice to meet those criteria. Its airtight seal minimizes thermal bridging and maintains a stable interior environment with minimal mechanical intervention.
Net-Zero buildings aim to produce as much energy as they consume over the course of a year. Achieving this requires not only the addition of renewable energy systems like solar panels but also a dramatic reduction in energy demand. Spray foam insulation plays a critical role in helping to lower heating and cooling loads, making it easier for the home’s renewable systems to meet or exceed total energy needs.
Whether you're building a certified Passive House, aiming for Net-Zero performance, or simply want to improve energy efficiency and comfort, spray foam offers long-term value. It contributes to better indoor air quality, moisture control, and structural durability—all while significantly cutting energy consumption.
At Custom Insulation Company, Inc., we’ve worked with countless homeowners, builders, and architects to deliver insulation systems that support the highest levels of building performance. We understand the demands of energy-efficient construction and are here to help you make informed choices every step of the way.
Contact us today to learn more about how spray foam insulation can help you reach your Net-Zero or Passive House goals.
18 August 2025
When it comes to improving your home's energy efficiency and comfort, one of the most important steps you can take is sealing air leaks. Small gaps and cracks throughout your home may seem insignificant, but over time, they can lead to major energy loss, uncomfortable drafts, and increased utility bills. This is where spray foam insulation stands out. Unlike traditional materials such as fiberglass or cellulose, spray foam doesn't just insulate — it seals.
Spray foam insulation begins as a liquid and is applied directly into wall cavities, crevices, or gaps. Within seconds, it expands dramatically, filling every space it touches. Once it cures, it hardens into a durable material that creates an airtight barrier. This expansion allows it to reach areas that traditional insulation simply can’t — places like rim joists, plumbing penetrations, attic hatches, crawl spaces, and around ductwork or recessed lighting. These are the common sources of air infiltration that can quietly undermine your home’s overall efficiency.
What makes spray foam so effective is its ability to both insulate and block air flow at the same time. While materials like fiberglass batts may slow down the movement of heat, they don’t stop the movement of air. Spray foam, on the other hand, completely closes off these pathways, significantly reducing the exchange of indoor and outdoor air. This means your heating and cooling systems won’t have to work as hard to maintain a consistent indoor temperature, which translates to lower energy bills and improved year-round comfort.
Beyond energy savings, spray foam offers other key advantages. By sealing up gaps and cracks, it helps improve indoor air quality by keeping out allergens, dust, and outdoor pollutants. It also prevents moisture from entering through air leaks, reducing the risk of mold and mildew. And since it fills voids completely, it can even act as a barrier to pests and insects that often find their way in through the tiniest openings.
Although spray foam insulation involves a higher upfront cost compared to traditional insulation materials, it is widely recognized as a long-term investment. Many homeowners notice a difference in comfort and energy savings almost immediately. With proper installation, spray foam can last the life of your home without sagging, settling, or breaking down.
At Custom Insulation Company, Inc., we specialize in professional spray foam installation designed to seal and protect your home. Whether you're building new, remodeling, or just looking to improve your home's efficiency, our experienced team can help you determine where air leaks are occurring and how spray foam can solve the problem at its source.
If you're ready to make your home more comfortable, energy-efficient, and sealed against the elements, reach out to Custom Insulation Company, Inc. today. We'll walk you through your options and provide a custom recommendation based on your home's needs. With the right insulation, you can enjoy lower energy bills, fewer drafts, and a healthier indoor environment all year long.
13 August 2025
When investing in spray foam insulation, one of the most important questions homeowners and businesses ask is: “How long will it last?” At Custom Insulation Company, Inc., we believe that understanding the lifespan and durability of spray foam is key to making informed decisions about your insulation needs.
Spray foam insulation is renowned for its superior performance in energy efficiency, air sealing, and moisture resistance. Unlike traditional insulation materials, spray foam expands to fill gaps and creates a tight seal that prevents air leaks and reduces energy loss. But how does it hold up over time?
The good news is that spray foam insulation can last for decades—often 20 years or more—when installed correctly and maintained properly. This longevity is due to its durable chemical composition, which resists settling, shrinking, and degradation over time.
Several factors influence the lifespan of spray foam insulation:
Quality of Installation: Proper installation by trained professionals is critical. Poor application can lead to gaps, uneven coverage, or premature breakdown. At Custom Insulation Company, Inc., we prioritize precise application techniques to maximize durability.
Environmental Conditions: Exposure to UV light, moisture, and temperature fluctuations can affect spray foam. While closed-cell foam offers excellent moisture resistance and structural stability, open-cell foam is more susceptible to water damage if not protected.
Building Movement: Natural settling or structural shifts in buildings can impact the foam’s integrity, but spray foam’s flexibility allows it to adapt better than rigid insulation materials.
Maintenance: Although spray foam requires little maintenance, regular inspections help identify any potential issues early, such as damage from pests or accidental punctures during renovations.
Compared to other insulation options, spray foam's ability to maintain its form and insulating properties over many years makes it a cost-effective choice in the long run. It not only improves comfort and energy savings but also contributes to a healthier indoor environment by reducing drafts and preventing moisture buildup.
At Custom Insulation Company, Inc., we’re committed to delivering high-quality spray foam insulation installations that stand the test of time. If you’re considering spray foam for your home or business, contact us today to learn more about how we can help you achieve lasting energy efficiency and comfort.
1 August 2025
At Custom Insulation Company, Inc., we believe energy efficiency starts from the inside out—and that means looking at your home’s insulation.
If you're working toward building a net-zero home or simply want to make your house more energy efficient, spray foam insulation is one of the smartest upgrades you can make. Unlike traditional insulation, spray foam expands to seal every gap, crack, and air leak—creating a tight thermal envelope that minimizes energy loss.
This superior air-sealing ability means:
Spray foam acts as both an insulation and air barrier, which plays a critical role in meeting the high-performance standards required for energy-efficient and net-zero buildings. Whether you’re building from the ground up or upgrading an existing structure, our team can help you design a solution that meets your energy goals—without sacrificing comfort.
If you're serious about reducing your carbon footprint, increasing your home’s value, and saving money on utilities, spray foam isn’t just an option—it’s a must.
Ready to build a smarter, more sustainable home? Let Custom Insulation Company, Inc. help you get there.
31 July 2025
If you live in a high-humidity region—like much of the Northeast—you already know the toll that constant moisture can take on your home. From musty basements to moldy insulation, excess humidity creates serious challenges for energy efficiency, indoor air quality, and overall comfort. That’s where spray foam insulation really shines.
At Custom Insulation Company, Inc., we often recommend spray foam for homes and buildings located in damp or humid environments. Unlike traditional insulation materials, spray foam isn’t just a barrier against heat loss—it also creates a powerful air and moisture seal that helps prevent many of the issues common in high-humidity areas.
One of the most significant advantages of spray foam is its ability to limit moisture infiltration. High humidity can seep into your home through tiny gaps in walls, floors, and attics, especially around vents, pipes, and crawl spaces. Spray foam expands to fill these gaps, creating a seamless layer of protection that reduces the likelihood of condensation and moisture buildup—two major contributors to mold growth and wood rot.
Closed-cell spray foam, in particular, offers excellent moisture resistance. Its dense structure acts as a vapor barrier, making it ideal for below-grade applications like basements, as well as areas with poor ventilation. Unlike fiberglass or cellulose, which can absorb and trap moisture, spray foam won’t sag, mold, or degrade when exposed to damp conditions.
In addition to protecting your home’s structure, spray foam insulation also helps control indoor humidity levels by keeping unwanted outside air from entering. This makes your HVAC system more efficient and helps maintain a more stable, comfortable indoor climate year-round—even on the stickiest summer days.
Proper installation is key. Our team at Custom Insulation Company, Inc. has the training and experience to assess your home’s unique needs and apply the right type of spray foam in the right areas. We ensure every job is done correctly so you get maximum moisture control, energy savings, and long-term performance.
If you’re tired of fighting against musty odors, high energy bills, or moisture-related damage, spray foam may be the solution you’ve been looking for.
Contact Custom Insulation Company, Inc. today to schedule an estimate or learn more about how spray foam can help protect your home in high-humidity environments.
19 July 2025
Spray foam insulation is one of the most effective ways to create a more energy-efficient, comfortable home—but like anything in your house, it doesn’t last forever. One of the most common questions we hear from Massachusetts homeowners is: “How do I know when it’s time to reinsulate with spray foam?”
If your home is drafty, your energy bills keep climbing, or rooms are unevenly heated or cooled, your insulation might be underperforming. Even high-quality spray foam can degrade over time, especially if it was installed decades ago, exposed to moisture, or applied incorrectly.
Another red flag? If your insulation is visibly shrinking, cracking, or pulling away from surfaces in the attic, basement, or walls. That means air is getting in—and your money is going out. Even newer homes may need attention if the original insulation wasn’t applied properly or was never designed to handle New England’s extreme seasonal temperature swings.
Reinsulating with spray foam can significantly improve energy efficiency, reduce HVAC strain, and boost indoor comfort—all while sealing out drafts, moisture, and allergens. It's also a smart upgrade if you're planning a remodel, adding an addition, or converting an attic or basement into livable space.
At Custom Insulation Company, Inc., we offer expert evaluations to help you determine whether your current insulation is still doing its job—or if it’s time for an upgrade. Our team uses top-quality spray foam products and proven techniques to ensure long-term results that you can feel year-round.
Not sure what’s hiding behind your walls or above your ceiling? Give us a call. We’re here to help you make informed decisions that protect your home and save you money.
9 July 2025
If you’ve ever walked from one room in your home to another and noticed a sudden drop (or spike) in temperature, you’re not alone. Uneven indoor temperatures and drafty rooms are some of the most common complaints among homeowners—especially in older homes or those with outdated insulation. Fortunately, there’s a powerful solution that can tackle both issues at once: spray foam insulation.
At Custom Insulation Company, Inc., we specialize in helping homeowners throughout Massachusetts create more comfortable, energy-efficient homes. And when it comes to fixing drafts and temperature inconsistencies, spray foam insulation is one of the most effective tools in our toolbox.
In many homes, the root cause is air leakage. Gaps, cracks, and poorly insulated areas—especially around windows, doors, attics, basements, and crawl spaces—allow conditioned air to escape and outdoor air to creep in. This not only makes your rooms feel uncomfortable but also forces your HVAC system to work harder, raising your energy bills in the process.
Even if your walls are insulated with traditional materials like fiberglass, they may not be enough to seal air leaks. That’s where spray foam shines.
Spray foam insulation expands when applied, filling even the tiniest cracks and crevices that other insulation types can’t reach. It creates an airtight barrier that keeps warm air inside during the winter and blocks heat and humidity from entering during the summer.
This means your home maintains a consistent, even temperature from room to room. Drafty bedrooms, chilly living rooms, and stuffy upstairs areas can all be transformed into spaces that feel just right, all year long.
Spray foam also works as a moisture barrier, which helps reduce the risk of mold, mildew, and allergens — especially in basements and attics where drafts are common.
Not only does spray foam make your home more comfortable, but it can also:
At Custom Insulation Company, Inc., we’ve helped countless homeowners across Central Massachusetts upgrade their homes with professional spray foam installation. Whether you're dealing with drafty rooms, inconsistent temperatures, or simply want to make your home more energy-efficient, we’re here to help.
30 June 2025
When summer hits New England, so do high electric bills and uncomfortable indoor temperatures. If your home still struggles to stay cool despite cranking up the AC, the problem may not be your HVAC system — it could be your insulation.
At Custom Insulation Company, Inc., we help homeowners take control of their energy use with spray foam insulation — a powerful solution that does more than just insulate. In fact, it’s one of the most effective ways to stay cool and cut costs during the summer.
Unlike traditional insulation, spray foam expands to fill gaps, cracks, and crevices, creating a tight seal that blocks out hot, humid air. This air sealing effect is key in the summer, where even the smallest leaks can let in heat and force your AC to work overtime.
By keeping the cool air inside and the hot air out, spray foam allows your cooling system to run more efficiently — and your energy bills to drop.
Benefits of air sealing in summer:
Solar gain — the increase in temperature from sunlight streaming through your roof and walls — can turn attics into ovens. Spray foam insulation minimizes solar heat gain, especially in attics, crawl spaces, and exterior walls.
By reflecting and resisting heat transfer, spray foam helps:
Most of our customers report a 20-40% reduction in cooling costs after installing spray foam insulation. It’s not just about comfort — it’s a long-term investment that pays for itself through energy savings.
Don’t let another summer drain your wallet or your AC. Let Custom Insulation Company, Inc. show you how spray foam insulation can transform your home into a cooler, more efficient space.
25 June 2025
As awareness about climate change grows, many homeowners and businesses are looking for ways to reduce their environmental impact. One highly effective strategy is improving your building’s energy efficiency—and spray foam insulation is a powerful tool to help you do just that.
At Custom Insulation Company, Inc., we specialize in spray foam insulation that not only keeps your home or facility comfortable year-round but also plays a significant role in lowering carbon emissions. Here’s how spray foam can help shrink your carbon footprint:
Spray foam insulation creates an airtight seal in walls, ceilings, and crawl spaces, preventing heated or cooled air from escaping. This dramatically reduces the amount of energy your heating and cooling systems need to maintain a comfortable temperature. Since much of the energy used in buildings comes from fossil fuels, cutting your energy demand directly translates into fewer greenhouse gas emissions.
Unlike traditional insulation materials, spray foam also stops air infiltration—a major cause of energy loss in older buildings. By filling cracks and gaps that would otherwise let outdoor air sneak in, spray foam keeps your indoor environment stable and efficient. This means your HVAC system runs less often, reducing wear and energy consumption.
Another environmental benefit is the longevity of spray foam insulation. Because it doesn’t sag or settle over time like fiberglass or cellulose, spray foam maintains its performance for decades. This reduces the need for replacement or additional insulation, lowering waste and resource use over the life of your building.
At Custom Insulation Company, Inc., we use eco-conscious materials and cutting-edge application techniques to maximize both efficiency and sustainability. Upgrading your insulation with spray foam is a smart step toward a greener home and a healthier planet.
Ready to reduce your carbon footprint and save on energy costs? Contact Custom Insulation Company, Inc. today to schedule a consultation and learn how spray foam insulation can benefit your property and the environment.
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.
16 Jacques Street - Rear
Worcester, MA 01603
Phone: 508-755-2315
Fax: 508-756-1941
E-mail: info@custominsulation.com
