Attic Insulation Company in Cupertino: Blown-In, Batt & More
The Leading Attic Experts in the Cupertino Area
Unbeatable Warranty, Turnaround Time, and More
A surprising amount of heat and air loss starts in the attic. Many homes in Cupertino still rely on insulation that was installed decades ago, and in many cases, that material has settled, absorbed moisture, or been damaged by pests. When insulation no longer does its job, homeowners feel it in the form of drafty rooms, uneven temperatures, and rising utility bills.
At EM Energy & Air, we help homeowners in Cupertino replace aging attic insulation with clean, high-performance materials. Our crews complete most insulation jobs in one day, and every project begins with a free inspection and on-the-spot estimate. We install fiberglass, cellulose, and mineral wool insulation, and we include unlimited installation warranties with every attic insulation service.
Your Old Attic Insulation May Be Working Against You: We Can Help
Anthony and Judy Price
I highly recommend EM Energy & Air!! We had them remove and replace our attic insulation, clean and sanitize our attic and install new insulation and a heat shield in our home. The crew was awesome. They laid down plastic for the pathway, and around the entire area where work was to be performed. It took about 5 hours and they were non-stop working to completion. We got a few quotes and were well worth our cost. Can’t say enough good things about the entire process, from initial meeting, quote to work completed!!
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Chris Lofaso
As a Professional Engineer and HVAC business owner, I can certainly recommend E&M. I pursued multiple bids and Eilon was by far the most knowledgeable, thorough and professional. His field team was courteous, worked neatly, and finished the project on time. We already notice that the HVAC system runs less and the house holds temperature better. Strong endorsement from me.
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Pieter Spinnewyn
we are very pleased having hired EM Energy & Air trough Eilon to tackle our attic project. From scheduling an appointment to getting the job done all went smoothly and faster than we expected. After reaching out on Sunday our attic got renovated within 1 week time frame: removing the old insulation, clean up of the attic, installing a whole house fan, redoing the HVAC pipes and insulation. I am very pleased with work done and professionalism of the crew. They worked very clean and swiftly ( all work was done in 1 day).
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Ayank Gupta
I recently hired EM Air & Energy to clean up and re-insulate my attic and handle some heating work at my home. I’m thrilled with the results and highly satisfied with their service! Elion visited my home to assess the attic and heating setup. He was thorough, knowledgeable, and gave me valuable suggestions tailored to my needs. The contractors who came to do the actual work were efficient, hardworking, and professional throughout. The pricing was fair, and I truly feel I received excellent value for the cost. The entire process was seamless, and I’m happy to recommend EM Air & Energy to anyone looking for top-quality service.
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Nayak Rakshit
I recently had EM Energy and Air replace the insulation in my attic, and I’m extremely pleased with the experience. Eilon and his team arrived on time, worked efficiently, and left everything neat and tidy. Eilon took the time to explain the process and provided various insulation options along with competitive pricing, making it easy to choose the best option for my home. The team’s professionalism and attention to detail were outstanding. I highly recommend EM Energy and Air for anyone needing quality insulation work done!
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Nelson
I called up these folks initially to get an estimate to clean out my attic. They provided me the best bid I received in terms of details and price. After a candid conversation with Eilon, I decided to have EM energy and air also install new insulation and seal off my attic. The crew were very thorough in sealing off all the possible rodent entry points and did a great job with the cleaning. And the insulation came just in time for the heat wave. It made a 10 degree difference in the inside temperature of my home. Great experience, would highly recommend them.
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Peter Csiba
Installing two heat pump with EM was a breeze; communication was very timely and the job was done well and as agreed. Quote process: They got me a fair quote same-day by just from sending them info over text (while other companies took weeks) and the price was fair. Change orders: I decided later I want two units, and again it was a smooth process. Also later there was an equipment change – and it made it convenient for me. Job Day: 4 guys arrived as agreed and get it done same day. I talked to most of them and all were polite, nice and upbeat. They let me inspect the work closely, made sure I am happy and give me tips on next steps. TLDR; Would hire them again and I am happy to recommend to my neighbors!
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Why the Attic Matters More Than You Think
Heat rises, and without proper insulation, much of it escapes straight through the attic. In summer, attics absorb radiant heat from the sun and spread that heat downward into the living space. Poorly insulated attics trap hot air in winter and struggle to block out heat in warmer months, forcing your HVAC system to run longer and more often.
The attic also plays a role in indoor air quality. If the insulation is old, damp, or damaged, it can release dust, allergens, or even mold spores into the air. This contamination often spreads through your ductwork, affecting the entire home.
What We See During Attic Insulation Inspections in Cupertino
Every attic tells a different story. In some cases, we find insulation that looks intact but has lost its ability to resist heat flow. In others, the material may be falling out of place or chewed up by rodents. We also look for signs of roof leaks, ventilation problems, and signs of contamination.
When insulation is matted, discolored, or clumped together, it has likely absorbed moisture or suffered damage. That material not only underperforms but may cause odors or indoor air issues. Our inspection process helps identify which areas need to be replaced and whether the attic needs sealing, ventilation upgrades, or additional protection.
Insulation Materials That Work Well in Attics
We offer a variety of insulation types to match your home and budget. Fiberglass batts remain one of the most popular options for attics, offering consistent R-values and quick installation. Loose-fill fiberglass and cellulose are ideal for topping off existing insulation or filling irregular gaps in the attic floor. Mineral wool provides extra fire resistance and sound control while maintaining strong thermal performance.
Every material we install is chosen for long-term durability and energy efficiency. If your attic has specific challenges, such as unusual framing, limited access, or ventilation issues, we help select the right solution to match.
A Few of Our Projects
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How Attic Insulation Affects Heating and Cooling
Many homeowners in Cupertino notice that their upstairs rooms are hard to keep comfortable. That often has more to do with insulation than the HVAC system itself. A poorly insulated attic allows heat to pass freely between your home and the roof cavity. In summer, that creates hot spots upstairs. In winter, it forces your furnace to run longer to compensate for heat loss.
Improving attic insulation can ease the burden on your heating and cooling systems, extending their life span and reducing energy use. It can also solve uneven temperature problems, especially in older homes with ductwork running through the attic.
Other Forces That Damage Insulation Over Time
Rodents and pests often find their way into the attic and make nests in old insulation. This contamination is not only unsanitary but can also damage the insulation’s structure and effectiveness. Roof leaks are another common culprit, allowing moisture to seep in and cause mold or mildew growth.
Even without visible damage, insulation naturally settles over time. After 20 to 30 years, it may lose up to half of its original effectiveness. In homes that have undergone remodeling or roof work, it’s also common to find sections of attic insulation removed and never replaced.
Our Installation Process from Start to Finish
We begin by removing any insulation that is damaged, compacted, or contaminated. From there, we inspect for air leaks and seal areas where heat may be escaping. This might include sealing around plumbing penetrations, light fixtures, or vents. Once the attic is properly sealed, we install the new insulation to the recommended depth for energy savings and comfort.
We treat every attic insulation project as an opportunity to make the home more comfortable and energy efficient. If ventilation or ductwork adjustments are needed, we address those at the same time to keep everything working together.
Add-Ons That Help Your Insulation Perform Better
In some homes, insulation alone may not solve the full problem. That’s why we often recommend pairing attic insulation with upgrades like radiant barriers or attic fans. A radiant barrier reflects heat away from the attic in summer, helping the insulation work more efficiently. Attic fans promote air movement and keep the space from overheating.
If ductwork runs through the attic, we may also recommend duct sealing or insulation to reduce air loss. These improvements work together to reduce your utility bills and keep your home more stable year-round.
Why Homeowners Choose EM Energy & Air
We’re known throughout Cupertino for honest advice, clear pricing, and fast turnaround. Most attic insulation jobs take a single day, and we provide detailed estimates during your inspection. All work is covered by an unlimited installation warranty, and we offer free financing to make upgrades more accessible.
As a full-service HVAC and insulation contractor, we can address underlying issues like air leaks, duct problems, or attic ventilation all in one visit. That saves time, money, and frustration for homeowners who want a reliable team they can trust.
Get a Free Attic Insulation Quote in Cupertino
If your home feels drafty upstairs, your energy bills are climbing, or your insulation is more than 20 years old, it may be time to schedule an attic inspection. Contact EM Energy & Air for a free visit and on-the-spot estimate. Our team will walk you through your options, explain the best materials for your home, and complete the work quickly with no hidden fees or surprises.
We stand behind our work!
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