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Find Insulation pros in Bethel Island

Avatar for ThermaCore Insulation Inc.
ThermaCore Insulation Inc.
5.0(
20
)

Serving Bethel Island, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"ThermaCore Insulation did a great job from start to finish. They removed our old insulation, installed new insulation, completed sanitation, and did rodent proofing as well. The crew was professional, respectful, and explained everything clearly. Overall, I’m very happy with the service and would recommend them to anyone needing insulation or attic work."
ThermaCore Insulation
applying 2-inches closed- cell spray foam
shipping container
project preparation
first code completion

+28

18 neighbors recently requested a quote
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)

Serving Bethel Island, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I love this company! Garrett came to my home and assessed how efficient our current insulation, etc was. He was very informative and friendly — explained what we needed and how they could help. At the time, I decided to hold off and he never pushed the sale. When I was ready, he was quick to accommodate my schedule. His team: Angel, Luis, Tommy and TJ were great! They arrived early, were professional, courteous, kind, very helpful with my questions and were above and beyond to help fix things that I wasn’t even aware of. They also were more than happy to help with small problems that I had no idea how to fix. They worked quickly and cleaned up afterwards. You could tell they cared about their work which makes me feel confident that the job was done right. They were also fun to have around — my Great Dane loved them too! Garrett and Dave checked in with me during and afterwards to make sure things were going well and if I had any questions. I highly recommend Eagle Shield."
Additional Photos
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Additional Photos

+9

2 neighbors recently requested a quote
Recommended by84%of homeowners
Hawx Insulation-Sacramento
4.1(
361
)

Serving Bethel Island, 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
Avatar for American Attics
American Attics
5.0(
8
)

Serving Bethel Island, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"American Attic was everything they promised. Met with the owner , Sam, within a day to get a quote for removal of old insulation, rodent control and install of new insulation. He was professional and explained everything in detail of what was work was going to be done and how long it would take. We scheduled within a week at a reasonable price. His crew were neat, organized and finished on time! We were notified of some extra things that were found while they were on the job but were not pressured to have those things done. We recommend American Attic to friends or family and would definitely use them again."
Additional Photos
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Additional Photos

+52

8 neighbors recently requested a quote
Recommended by37%of homeowners
Avatar for Insulation Alliance
Insulation Alliance
5.0(
2
)

Serving Bethel Island, CA and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"When Insulation Alliance came, they were very professional. They laid down plastic everywhere in the hallway and the bedroom. They cleaned out the whole attic. They took out the old insulation and put in the new Insulation which was R 44. They cleaned up everything and everything was clean when they left. They also sanitized the attic. You will not be disappointed that you hired."
Attic Cleaning
Attic, Crawl Space and Basement Decontamination
ATTIC, WALL, CRAWL SPACE INSULATION
THERMAL INSPECTION
REMOVING INSULATION

+86

11 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for AD Insulation
AD Insulation
5.0(
1
)

Serving Bethel Island, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We specialize in insulation services. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

18 neighbors recently requested a quote
Avatar for All Seasons Insulation
All Seasons Insulation
4.9(
46
)

Serving Bethel Island, CA and surrounding areas

In business since 1986

Free estimates

Credit card accepted

"Joel and the team were fantastic and did a great job on my insulation removal and replacement. They answered all of my questions and gave me honest opinions on the job I wanted quoted, and which I then hired them for. They were punctual on both days of work, and they did clean and efficient work. I recommend them to anyone who needs insulation work done."
Attic before and after
Wall Being Drilled
Finished wall Insulation Injection
Wall insulation from Interior
Attic Insulation Upgrade

+6

Response time10 hrs
Response rate93%
Recommended by100%of homeowners
Avatar for JM Insulation, Inc.
JM Insulation, Inc.
4.7(
64
)

Serving Bethel Island, CA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"Javier and his team were prompt every day, took care to cover anything even slightly near the worksite and leading to it in plastic, and removed all existing insulation in one day (using a large vacuum, which also removed rodent droppings). They then built a great 8'x8' raised storage area (with insulation underneath) and replaced the old material with blown-in cellulose. Between removal and new insulation, they crawled all around the attic and covered up any potential rodent entry points, pointing several out on the inside and outside of our home. They also filled a large opening that went behind our BR closet and filled the areas above the knee walls so our sloped master ceiling now had insulation. Exceptional!"
Removal
Removal
Removal
Air seal
Air seal

+38

Response time2 days
Response rate90%
Recommended by98%of homeowners
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FAQs for insulation service projects in Bethel Island, CA

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.

The Bethel Island, CA homeowners’ guide to insulation services

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

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