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Best insulation pros near Crestline, CA

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TRUSTED BY CRESTLINE, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon19
    Verified insulation services reviews

Top-Rated Insulation pros in Crestline - Updated Nov 2026

Avatar for Next Level Insulation
Next Level Insulation
5.0(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Crestline, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Jesus and his crew at Next Level Insulation completed my attic needs (Insulation & cleaning) flawlessly. They are true professionals! Jesus was very responsive in keeping appointments, providing a quote and completing the job. He explained the job they were preforming and kept me informed every step of the way. I truly recommend Next Level Insulation."
attic insulation
New R21 insulation
attic vaccumed
new build
box truck

+33

Response time1 day
Response rate95%
Avatar for Alpha Insulation
Alpha Insulation
4.6(
17
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Crestline, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Alpha insulation is a good choice. Their installation was great. The guys cleaned up all their mess. Which is a plus for me. Miguel was easy to talk to. I told him what I wanted done to my house and he gave me a great price for what I asked for. So I hired him. I would recommend alpha insulation to friends and family."
Blow In
Insulation Removal and Air Seal
Insulation Removal
Air Seal
Air Seal

+46

Response time3 days
35 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Phoenix Insulation Inc.
Phoenix Insulation Inc.
5.0(
1
)
Spray Foam Insulation - Install

Serving Crestline, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I was very satisfied on efficiency these guys were working on my home ! Making my home feel like home again ! I’ll recommend them again 🫶and very affordable btw! thanks to them it saved me a lot of money ! Phoenix insulation is the best ! Thank you !"
Gallery
11 neighbors recently requested a quote
Avatar for Insulation Labs
Insulation Labs
4.9(
122
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Crestline, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"The professionalism and quality that the Insulation Labs team demonstrated from beginning to end should serve as a Master Class for any other service oriented company. Scheduling the estimate was effortless with clear, helpful and efficient communication from Diana, their first line of contact. Abraham arrived to do the estimate visit with kind patience and knowledge. He took the time to help us figure out how best to approach the insulation and was more than willing to answer all of our many questions. When we received the estimate we were appreciative of how easy it was to read and understand what the plan was. We knew exactly what to expect and how much it would cost. Today was the day of the insulation. Chris, Tzoc, and Moises spent a long full day doing the entire job. Throughout they were kind, professional, and did an outstanding, neat job. At all times, they cared for our space as if it were their's. We are so glad we chose Insulation Lab. There is no question we would recommend them to anybody."
Insulation | Batt Removal & Replacement | Los Angeles | Insulation Labs
Completed installation of solar panels | Insulation Labs | Los Angeles
Roofing Projects
Spray Foam insulation is a great choice of insulation for attics, walls, and crawl spaces.
Batt Insulation | Removal & Replacement | Los Angeles | Insulation Labs

+138

Recommended by98%of homeowners
Avatar for Innovative Insulation Services
Innovative Insulation Services
4.7(
15
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Crestline, CA and surrounding areas

Free estimates

Credit card accepted

"IIS is an excellent company to complete your attic project. Alex initially gave me a free inspection and good estimate then made sure all my questions were answered throughout the whole project. All the work was done within a day and it was great pricing for the work performed, beats most competitors."
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+27

Recommended by92%of homeowners
Avatar for Evergreen Air Duct Cleaning
Evergreen Air Duct Cleaning
4.9(
27
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Crestline, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Good company to work with! They were very nice and seem to be honest over the phone as well. They came on time and did the job. My A/C system didn't work good and a strange smell came out of the ducts when I turned the A/C on. 
Jose that did the work, checked everything and connected a machine to the system letting it run for a while and added a cleaning chemical that made this smell gone.
I will hire them for the future. it was a hassle free with this company.
"
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+58

Recommended by94%of homeowners
Fibers Insulation
5.0(
3
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Crestline, CA and surrounding areas

In business since 2025

Free estimates

Small jobs welcome

"Fibers Insulation was extremely professional right from the first call. I chose their service from Angie’s Lust and within minutes Geovany responded. He came out on a Saturday to provide a quote and followed up days later. Members of the company were here at the designated time and did a stellar job! I insulated my garage to add better barrier for my garage to enhance a new AC unit to offset summer heat. Geovany followed up after the installation to ensure all went well. To ensure a better look, taping will be added to keep it looking great. I will recommend them to others in my gated community as I am very pleased with the result."
Avatar for Best Builders Group Inc
Best Builders Group Inc
5.0(
167
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Crestline, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Zohar at Best Builders Group came out to our house in order to check and see how and what to change in the existing kitchen. Zohar and his team of people did a wonderful remodeling job from A to Z. We were very impressed and surprised from the high quality of the work and from the professionalism of the workers. During the work, several issues came up during the remodeling project but the team and Zohar handled all of them with no effect to the completion date and with no additional cost. We are looking forward to hire them soon and to remodel all of our bathrooms."
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+260

Recommended by99%of homeowners
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Insulation FAQs, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

For your safety, you should always wear a mask when cutting batts of fiberglass insulation. We also recommend wearing eye protection, safety gloves, and long sleeves to protect your skin. Properly suiting up helps you avoid several fiberglass issues, such as cuts from the tiny shards of glass and inhaling small bits of fiberglass.

Yes, doggie doors, like all entrances, can let both hot and cold air into your home. However, as with any door in your house, you can take steps to weather-strip your pet's entrance to prevent air leaks.

Air sealing isn't necessary for attic insulation, but it's incredibly helpful since it can help you identify and patch any existing air leaks. Failing to find these leaks before adding insulation can render your insulation less effective, leading to higher energy bills and potentially costly repairs down the line.

If you’re a savvy DIYer around the house, own the basic tools, and have enough time on your hands, you can definitely install fiberglass insulation yourself. Doing the work yourself will certainly keep overall insulation costs down. However, if you’re not confident in your handy skills around the house, call in a professional.

The Crestline, CA homeowners’ guide to insulation services

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