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TRUSTED BY SAN MARCOS, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon330
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in San Marcos - Updated Nov 2026

Avatar for Insulation Commandos of Temecula Valley and North San Diego
Insulation Commandos of Temecula Valley and North San Diego
5.0(
14
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Marcos, 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%
11 neighbors recently requested a quote
Avatar for ACH Insulation
ACH Insulation
4.6(
47
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Marcos, 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
8 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Ecotech Pro Inc
Ecotech Pro Inc
5.0(
17
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving San Marcos, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Did a great job...it was a very long day from start to finish however. They did a great job of keeping everything as clean as they could since our attic access was in the master closet! Yikes! Really made a difference and our house stayed much cooler with the fan and new insulation!"
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
Response rate100%
27 neighbors recently requested a quote
Attic Advisor
4.9(
14
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Marcos, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Rafael and his company are great people to work with. Their in-depth estimate and assessment of the attic is unparalleled, not to mention competitive. They were very flexible with accommodating our needs on our schedule. Very responsive Manager too, would reply to my calls and text almost immediately. I really appreciate how hard working and efficient these guys are. I had other workers doing work on our house at the same time and they were also impressed at how clean they left the attic before installing the new insulation. Rafael values your business and his work and attitude definitely demonstrate it. Call them you won't regret it."
Insulation clean up
Insulation clean up
Response time1 day
Response rate88%
22 neighbors recently requested a quote
Avatar for California Attic & Build Corp.
California Attic & Build Corp.
4.6(
19
)
Blown-In Insulation - Install or Upgrade

Serving San Marcos, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I had a fantastic experience with California Attic and Build! From start to finish, Dan and Ben were incredibly professional, knowledgeable, and attentive to my needs. They took the time to explain the entire process and made sure everything was done to the highest standard. The quality of their work exceeded my expectations, and their friendly attitude made the project enjoyable. I highly recommend California Attic and Build, especially if you get the chance to work with Dan and Ben—they truly go above and beyond!"
My jobs
My jobs
My jobs
My jobs
Response time1 day
Response rate96%
116 neighbors recently requested a quote
Avatar for Pro Service Insulation, Inc.
Pro Service Insulation, Inc.
4.9(
44
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Marcos, CA and surrounding areas

In business since 2017

Free estimates

Warranties offered

"Rob was amazing! I wanted to get my attic insulated, my house was built in the sixties and had never been updated to current standards. Was able to get an estimate within 2 days and when he came he inspected throughout to see if there were other problems which he found from when we replaced out AC ducts. Estimate was extremely reasonable and was able to get a insulation date the following week. Luckily we were able to get this done before the heat waves started and I already have noticed the improvement on retaining ideal temperature and my AC runs much more efficiently and has to run for less time. Cant recommend this company enough!"
Blown Fiberglass
Blown Fiberglass
Blown Fiberglass
Blown Fiberglass
Blown Fiberglass

+40

Response time12 hrs
Recommended by100%of homeowners
Avatar for Guardian Insulation, Inc.
Guardian Insulation, Inc.
4.7(
63
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving San Marcos, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"Love this company! Only good things to say. Price was very competitive or better. Showed up on time. Took care of attic insulation and wall insulation. I am going to hire them again and happy to recommend to anyone."
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
Showing 1-10 of 43
Drywall Insulation FAQs, answered by experts

Regular inspections, repainting, and avoiding moisture exposure help maintain integrity.

Plaster is a beautiful finish but is labor-intensive to install and remove. It’s vulnerable to cracking and more sensitive to moisture variance than drywall. Installing plaster on a new wall is an expensive process that can take days to weeks, depending on the scope. Removing a plaster wall can also be quite expensive and time-consuming.

While you can put new drywall over old drywall, it’s not always the best option. In some cases, drywalling over drywall can make it harder to find wires and pipes behind your walls and conceal more serious problems with your walls. It can also make the room smaller. On the plus side, putting drywall over drywall can improve soundproofing and insulation. Plus, it’s often less expensive than tearing down and adding new drywall.

With its breathability and flexibility, lime plaster is among the most durable of all plaster types. It's also fire-resistant and has a proven track record, as people have been using it for thousands of years.

However, all plaster types will last for many years with the right care and treatment. Proper preparation and installation will also help ensure your plaster walls look great for as long as possible.

It’s always better to follow proven drywall repair tips and fix the seams that look bad. However, if you simply want to make them less noticeable until you have time to fix them, you can use paint. A darker color of paint makes bad drywall tape seams less noticeable than light-colored paint. Matte paint hides bad seams better than glossy paint does, too.

The San Marcos, CA homeowners’ guide to drywall insulation services

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