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Avatar for Attic Shield
Attic Shield
5.0(
20
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Potrero, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"Elliott and his team came out and did a great job! They removed our old insulation and installed new blown-in insulation. Not only is the house quieter and more comfortable, but we?ve noticed a big improvement in the overall indoor air quality. I really appreciated the fact that the crew was respectful of our home. They worked hard and got the project done in 1 day."
Batts Insulation
Final Install
Final Installation
Air Sealing
Cleaning

+17

Response time8 hrs
Response rate93%
8 neighbors recently requested a quote
Avatar for Ecotech Pro Inc
Ecotech Pro Inc
5.0(
17
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, 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
Response rate100%
26 neighbors recently requested a quote
Avatar for California Attic & Build Corp.
California Attic & Build Corp.
4.5(
17
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Potrero, 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 rate96%
144 neighbors recently requested a quote
Avatar for Phoenix Insulation Inc.
Phoenix Insulation Inc.
5.0(
1
)
Spray Foam Insulation - Install

Serving Potrero, 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
4 neighbors recently requested a quote
Avatar for Attic Construction, Inc.
Attic Construction, Inc.
4.3(
82
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Potrero, CA and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"Tyler asked questions and listened to our answers to help us choose the insulation options that made sense for our home. The 3 workers prepared the area to protect our floors and doorways from any damage before they started work. Everyone was professional. Even though they put in a long day everything was cleaned up thoroughly before they left."
Before, Middle, After
Before
Removing Debris and Batt Insulation
During Vacuuming
During Vacuuming

+9

Response time4 hrs
Response rate85%
Recommended by90%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Since this remodeling was the first remodeling that we decided to do after a long time since we did our last remodeling that required to hire a contractor to do it. The kitchen that we wanted to remodel, need to includes the cabinets, floors, island, counter tops, hardware, paint and lighting. We also wanted to do as many energy efficient features that will help us reducing the bills during time. Our search was for high quality and low quality and reputable construction companies that can service my area. Landmark construction energy crew was the great find that I was able to talk to and hire. First off their service was top notch. They were very responsive from the first meeting we had, patiently and really wanted to know what I’m trying to do in the kitchen. They were in touch with me during the whole work and made sure to provide me with updates regard anything that was complete and what will be next. What I liked most was that they were extremely detail-oriented. I very much appreciated that, especially given the Major scope of my project and plans. The end results were more than I expected. All the low voltage lightings, the special insulation that they used, the extra protection that they installed in the window that I have in the kitchen and more… All of this features improved the energy protection at the kitchen. They followed up with me the following day after all the final documents were signed off by me about the work in order to make sure that I was happy with the final results. I'm happy to mention that kitchen remodeling project was completed a little bit before the due date."
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

Founded in 2000, for over 20 years Mega Power has been one of the premier solar companies in all of California, including many cities like Los Angeles, Riverside, Santa Clara, Granite Bay, Van Nuys, San Francisco, San Jose, Pasadena, Sacramento. Complete customer satisfaction, personalized approach and attention to details are our company’s intrinsic core values. We are providing the highest quality service as we enable our customers to save money, increase their property value and help improve the environment. Our team of certified professionals takes genuine pride in giving smooth, practical, Eco-friendly and positive solutions to our residential, commercial and industrial customers’ needs. All equipment and services meet both National Electrical Code requirements and local building codes. Mega Power offers a range of options toward green and energy-efficient solutions to all electrical power needs. We have extensive experience in building a complete solar panel system of all sizes on the roof or on the ground. Mega Power installs them with interconnection to the utility provider so that you could successfully sell excess electricity.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
Avatar for HealthyHomes4U Inc
HealthyHomes4U Inc
4.1(
37
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, CA and surrounding areas

In business since 2011

Credit card accepted

"They did a fabulous job on the analysis. They were here for 5 and a half hours so it was very thorough. They tested the air flow through the ducts and everything. I was blown away by the thoroughness for the analysis. They were extremely professional and explained why they were recommending what they recommended. They followed up by sending a pdf of their estimate and their explanation. We did not have the company install insulation, but it wasn’t due to their lacking. What they proposed was definitely the best solution."
Recommended by62%of homeowners
Avatar for Just Do It Builders Inc
Just Do It Builders Inc
4.4(
215
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, CA and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"I bought an Angie's list deal for dry wall repair but really they just spread some spackle on it and left it rough. I had to scrape off the blobs of spackle left on the ceiling. My boyfriend could have done the same job. I wanted them to actually replace the dry wall where it was cracking. Mainly they wanted to sell me more jobs and pushed me to sign on with them to get new insulation in the attic. I had them give me an estimate on rain gutters while they were here. Their estimate/prices are very high. I think they have to pay for all those people manning the phones. It sounds like a boiler room when they call."
Additional Photos
Additional Photos
Additional Photos
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Additional Photos

+29

Recommended by70%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Potrero, CA and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
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Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Showing 1-10 of 23
Insulation questions, answered by experts

There are many ways to keep your house cool without central air. In fact, ductless mini-split AC systems are a solid alternative to central AC for situations when you can’t install ducts in your home. If you’re looking for a more budget-friendly cooling solution, consider using window AC units or portable air conditioners.

If you’re using faced insulation with paper, face the paper toward the inside of the room during the installation process. 

A good way to remember this is that the paper should face the “warm side” as it’s the vapor barrier, meaning it should face toward where the heat will be coming from.

The R-value is a rating that measures an insulation's thermal resistance—in other words, how well it insulates. A higher R-value provides more protection for your pipes, and all pipe insulation materials should have an R-value listed on the product description or label. Each insulation type has its own R-value, which typically falls between one and five for most pipe insulation. When making a selection, Energy.gov recommends choosing a pipe wrap that is at least one inch thick, and the International Code Council (ICC) suggests choosing a material with an R-value of at least 3.

The average cost to install insulation is around $1,800, but you could pay anywhere between $500 and $4,500, depending on various factors. Some of the things that have a significant influence on your pricing include the following:

  • Size of the area 

  • Type and R-value of the insulation 

  • Whether your space is finished or unfinished

  • Accessibility of the area

  • Your geographical location

  • Amount of site preparation, especially for blown-in insulation

  • Whether or not you need old insulation removed

Asbestos has many beneficial properties, including fire resistance, strength, and chemical resistance. It is also an excellent insulator, which is why it was used in pipe insulation and other building materials for decades. For all its benefits, asbestos is dangerous for human health, which is why it was eventually banned from use in certain products.

The Potrero, CA homeowners’ guide to insulation services

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