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Find Insulation pros in Bonsall

Avatar for Insulation Commandos of Temecula Valley and North San Diego
Insulation Commandos of Temecula Valley and North San Diego
5.0(
14
)

Serving Bonsall, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"The owner of the company Jason Taylor spent time in my attic before we contracted with them so he could give me good and correct information. He also participated in the work of shooting in the insulation. He was very hands-on. Donâ t usually expect this attention from the owner/boss Was very pleased."
Blow In Fiberglass
Attic Cleaning
Before
Insulation Commandos
On Jobsite

+3

Response time11 hrs
Response rate100%
32 neighbors recently requested a quote
Avatar for ACH Insulation
ACH Insulation
4.6(
47
)

Serving Bonsall, CA and surrounding areas

Approved

In business since 1991

Free estimates

Warranties offered

"Great company to work with. Very professional and courteous. They did a great job insulating my home and you canâ t tell where the work was done. They weâ re respectful of my property, worked fast & efficiently and cleaned everything up when completed. I highly recommend this company!"
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5

+15

Response time11 hrs
7 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Ecotech Pro Inc
Ecotech Pro Inc
5.0(
17
)

Serving Bonsall, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"On initial inspection, they discovered that our old heat registers were the kind with asbestos (house built in the 60's), so they had to sub out the abatement part of the job. Once abatement was complete, the workers showed up each day at the time they said they would arrive. They were all friendly and professional. They kept everything clean. The took pictures in the attic to show me before, during, and after the work. They explained what they were doing and showed me the new ducting they were installing (quiet ducts) and explained the more "up-to-date" way of putting in the duct work than what we had. After the work was complete, we noted that the furnace ran much quieter (due to new ducting), and it ran WAY less often. The house stayed much warmer while running the furnace much less often. Best of all, our gas bill dropped! Now that we're moving into summer, the house seems to be staying cooler on these warm days. We don't have A/C so we're hoping the new insulation will keep the house cooler as the days continue to warm up. Very happy with the company and all the work they did. I would recommend them!"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
New Attic blow-in insulation.
Heating and Air Conditioning Project

+55

Response time1 day
39 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Attic Shield
Attic Shield
4.9(
19
)

Serving Bonsall, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"Explained what was needed to be done. Arrived on time. Fast and efficient. removed all old insulation in attic-, sanitized and installed new insulation."
Batts Insulation
Final Install
Final Installation
Air Sealing
Cleaning

+17

Response time8 hrs
Response rate89%
5 neighbors recently requested a quote
Avatar for California Attic & Build Corp.
California Attic & Build Corp.
4.7(
14
)

Serving Bonsall, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"California Attic & Build was fantastic! The team was professional on time and left everything spotless. They explained the process clearly and showed before and after photos. My home already feels more comfortable. Highly recommended for insulation, cleanup, and rodent proofing!"
My jobs
My jobs
My jobs
My jobs
Response time1 day
Response rate94%
92 neighbors recently requested a quote
Avatar for Guardian Insulation, Inc.
Guardian Insulation, Inc.
4.7(
63
)

Serving Bonsall, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"They removed blown in insulation cleaned up rat feces sanitized attic then reinstalled insulation. They arrived on time did an excellent job and cleaned up."
Blown Cellulose
Installing Cellulsoe Insulation
Air Sealing Attic Penetrations
Exterior Wall Insulation
Exterior Wall Insulation Patching

+1

Response time1 day
Response rate93%
Recommended by96%of homeowners
Avatar for Guardian Home Energy
Guardian Home Energy
4.2(
111
)

Serving Bonsall, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"The crew was on time, worked hard and efficiently, and cleaned up the work site beautifully after they were done. The subsequent patching, stucco replacement, and painting were so superb one would never know the entirety of the house had been drilled into in dozens of places. As for the insulation product itself, I was able to feel the positive effects of the insulation almost immediately. Happy to recommend Guardian for wall insulation work."
Blown Attic Insulation
Fair Market Value
Response time1 day
27 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Attic Construction, Inc.
Attic Construction, Inc.
4.3(
82
)

Serving Bonsall, CA and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"Quick service - they were out within a few days to finish phase 2 of insulation. Billy and Wesley were quick and efficient and cleaned up our attic and surrounding area real well!"
Before, Middle, After
Before
Removing Debris and Batt Insulation
During Vacuuming
During Vacuuming

+9

Response time4 hrs
Response rate85%
Recommended by90%of homeowners
Showing 1-10 of 40

FAQs for insulation service projects in Bonsall, 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 Bonsall, 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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