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TRUSTED BY SYLMAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon108
    Verified insulation services reviews

Top-Rated Insulation pros in Sylmar - Updated Nov 2026

Avatar for Everguard Home Insulation Inc.
Everguard Home Insulation Inc.
4.8(
199
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Sylmar, 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!!!"
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+7

Response time2 days
15 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 Sylmar, 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%
38 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 UpgradeInjection Insulation - Install+2 more

Serving Sylmar, 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%
11 neighbors recently requested a quote
Avatar for Insulation Commandos of Southern California
Insulation Commandos of Southern California
4.2(
417
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Sylmar, 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
532 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for ELM Insulation & Sound Solutions
ELM Insulation & Sound Solutions
5.0(
11
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Sylmar, 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 Hawx Insulation-Los Angeles
Hawx Insulation-Los Angeles
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Sylmar, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
All Type Insulation Services, Inc
New to Angi
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install+1 more

Serving Sylmar, CA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

All Type Insulation Services, Inc. is an experienced insulation company specializing in residential and commercial properties throughout Southern California. Our corporate structure consists of various departments that contribute to the overall company's mission and goals, ensuring you will receive the knowledge needed to ask the right questions during your project.

35 neighbors recently requested a quote
Avatar for Lancaster Insulation, Inc.
Lancaster Insulation, Inc.
4.6(
70
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Sylmar, CA and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"Charlie provided a reasonable estimate and challenges they may encounter during the installation. He was punctual, straightforward and honest. The installation team work hard for 2 days and got the job done with no issues. They were respectful and professional. I would hire them again for insulation needs. Thank you Lancaster team!"
Wall
Wall 2
Wall 3
Wall 4
Wall 5

+32

Response time1 day
Recommended by100%of homeowners
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Showing 1-10 of 133
Insulation FAQs, answered by experts

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

You can buy pipe insulation materials in your local hardware store or in major home improvement stores. You can also shop for insulation online, where you may be able to more easily buy in bulk. When shopping, make sure you know your pipe's dimensions so you can buy the correct size of pipe insulation materials for your pipes.

You won’t find anything inside a cupola on a house because it’s hollow (think of an upside-down cup), allowing air to ventilate out of a roof via vents and light to come in via windows. They also usually have a base, vents around the middle (usually louvers), and a pointed cap at the top.

It depends on your needs and preferences, though many homeowners think it is worth it. Not only is blown-in insulation easy to install, but it is highly efficient with thermal regulation. Most types are mold-resistant, flame-resistant, insect-resistant, and, most importantly, completely safe.

Insulating ductwork improves your HVAC system's energy efficiency by protecting the air from external conditions and preventing energy loss as it travels through the ducts. This means your system doesn't have to work as hard to heat or cool your home, leading to lower energy bills and a reduced carbon footprint. Additionally, insulated ducts help maintain a more consistent and stable indoor temperature, enhancing comfort. Proper insulation also improves indoor air quality by reducing the entry of allergens and pollutants and helps prevent problems like condensation and mold formation within the ductwork.

The Sylmar, CA homeowners’ guide to insulation services

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