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TRUSTED BY WEST COVINA, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon70
    Verified insulation services reviews

Find Insulation pros in West Covina

Avatar for Everguard Home Insulation Inc.
Everguard Home Insulation Inc.
4.8(
199
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving West Covina, CA and surrounding areas

Approved

In business since 1959

Free estimates

Emergency services offered

"It is rare these days to find a great company with good values. This is one of those instances; I cannot say enough, good things about the professionalism of the employees at the office and those that showed up on site to install wall insulation. They showed up at the beginning of the two hour window, which was fantastic and explained everything with upfront pricing. We even asked for additional insulation and they were able to accommodate. Our home walls are now insulated and we even noticed a difference right away. From the time of arrival to completion they were nothing but exemplary. Thanks again for running an honest and professional team! Highly recommend to anyone out there looking to insulate your home!!! Notability, they were well below other companies on pricing too!!!"
Additional Photos
Additional Photos
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Additional Photos

+7

Response time2 days
9 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Insulation Labs
Insulation Labs
4.9(
519
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving West Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Warranties offered

"In July 2024 I hired Insulation Labs to add more insulation to our attic. They showed up on time with a truck full of insulation, and a few hours later they had put all of it inside our attic. They did a good job up there. I am very pleased with how everything turned out. One thing that distinguished Insulation Labs from some other outfits is that they did not try to up-sell us with services we didnâ t need."
Fresh Insulation & New Ducts
Completed installation of solar panels
Roofing Projects
Spray foam insulation Projects
Old Insulation & Debris

+121

Response time11 hrs
Response rate90%
40 neighbors recently requested a quote
Avatar for Marathon Insulation
Marathon Insulation
5.0(
16
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+2 more

Serving West Covina, CA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"After talking with several attic clean out and insulation, wall insulation companies, I decided to go with Marathon Insulation. Johnathan was very helpful and professional, gave the best choices for my issues, without trying to upsell like some of the others. After getting the attic and walls insulated (with attic clean out) I can already feel the heat stay in the rooms much longer and the walls much less cold to the touch before. I highly recommend Marathon Insulation! They were always on time, delivered as promised, and cleaned up after."
Exterior wall drill fill
Newly constructed pool house ready for insulation
Exterior wall drill fill
Pool house insulated with brand new batt insulation
Exterior wall drill fill

+23

Response time7 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for Alpha Insulation
Alpha Insulation
4.6(
15
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving West Covina, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Miguel and Richard insulated the entire south side wall of my house, including my master bedroom. They were very professional, honest and very clean. They walked me through the process so I knew exactly what I was getting. They had the best prices and used all the left over material in empty spots in my attic. I would recommend them to everyone needing insulation work done. Removal and or install. We have remodeled our entire house and they were the most pleasant to work with. Best of luck fellas, god bless. Kevin"
Blow In
Insulation Removal and Air Seal
Insulation Removal
Air Seal
Air Seal

+46

Response time3 days
16 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Insulation Commandos of Southern California
Insulation Commandos of Southern California
4.2(
415
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving West Covina, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"After having a new air conditioning system installed, to replace an old inefficient one, we decided to make sure our attic had the correct insulation as well as the appropriate R-value. Since our home was built in the 1950's, the insulation throughout the attic was minimal. We hired Insulation Commandos to survey and provide us with the appropriate solution. The solution involved removal of the old insulation, cleaning the area, and installing the correct insulation based on our homes location. We now believe we can keep our energy costs down and provide less strain on our AC system. Great job team!"
before and aftert insulation install
insulation remocal service
about us
Wrapped trucks
513 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for ELM Insulation & Sound Solutions
ELM Insulation & Sound Solutions
5.0(
11
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving West Covina, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Me and my husband live in a condo in Los Angeles. About 6 months ago the neighbors upstairs rented their condo. The new neighbors are a family with two kids who are very sweet, but like to wake up early and throw stuff on each other. (At least thatâ s what itâ s sounds likeâ ¦) we talked to a few different contractors, most have offered us to inject insulation to the ceiling. We tried it, as it was not expensive, but, this did almost nothing. My husband who has very light sleep kept waking up every day at 5, what made our life very difficult. We did some due diligence and realized we need a much serious approach. When we talked to Eli at ELM, we understood right away thisbis the right contractor for us. His level of knowledge exceeded everyone else's, and he was wiling to make everything as clear as possible for us. The price wasnâ t cheap, as the construction included demo, installation of many materials and even lowering the ceiling. The project took about 2 weeks and we could see the difference right away. We could barely hear any thing!! What a huge difference! The crew were cleaning after every day of work and were very professional. I highly recommend ELM (make sure Eli is meeting youâ ¦.) for every Sound Proofing project. Thank you Eli (and pedro!)"
Wall insulation
Insulation
Insulation
Insulation
Air Sealing

+29

Response time5 hrs
Response rate98%
17 neighbors recently requested a quote
Avatar for Attic Construction OC, Inc.
Attic Construction OC, Inc.
4.4(
85
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving West Covina, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Stephan and his team were professional, on time, priced fair, protected the house well, and the removal of old/install of new attic insulation went very smooth. I requested they spread the work over 2 days in order to have electrical done in between, and they were able to accommodate that request. The electrician commented that they did a good job not disturbing existing electrical during the removal of old insulation. The result of the new insulation is a much more comfortable and efficient home. All in all, I would hire again, great job."
Before
Clean
Insulated
Response time5 hrs
Response rate93%
86 neighbors recently requested a quote
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Insulation questions, answered by experts

Yes, there are government incentives available in some regions for insulating air ducts as part of energy-efficient upgrades. These incentives aim to encourage homeowners and businesses to improve energy efficiency and reduce their carbon footprint. To determine whether you qualify for such incentives, check with your local utility company or government agencies. They often offer rebates, tax credits, or other financial incentives that can help offset the cost of duct insulation projects.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

A dehumidifier can reduce condensation on your ductwork by lowering humidity levels in the air. Condensation occurs when humid, warm air makes contact with cold ducts. A dehumidifier can help maintain your home's indoor humidity below or around 50%, minimizing moisture buildup. However, if condensation is caused by leaks, cracks, or other damage, a dehumidifier won’t solve the problem. 

There are many reasons one bedroom may be hotter than the rest of the house. The sun will quickly heat a south-facing bedroom with a large window, especially if it lacks quality curtains. If the room has poor insulation, this could let more warm outside air in. Upstairs bedrooms are often hotter than ground-floor rooms because heat rises. Finally, rooms further away from the air conditioning unit may heat up a lot if the system is not properly balanced.

The primary purpose of insulation is to maintain comfortable temperatures in a home, whether that’s cool air when it’s hot out, or warm air in winter, but that’s not all it can do. All options will also minimize heating and cooling needs, lowering both your carbon footprint and energy bills in turn. And some options, like rigid foam boards, even offer soundproofing benefits, too.

The West Covina, CA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.