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TRUSTED BY NEWCASTLE, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon54
    Verified insulation services reviews

Top-Rated Insulation pros in Newcastle - Updated Nov 2026

Avatar for Clear Efficiency
Clear Efficiency
5.0(
57
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Newcastle, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"I met Jesse (owner) at the Auburn home. After setting an appt., he showed up on time as promised (can t say that for a lot of other companies). We reviewed what I wanted done which I appreciated because I ve had others suggest what they wanted done instead. He physically went up into my attic to access my old and inefficient insulation, including video recording it. He also spent time looking at my old windows (1980 s style) that I was also looking to replace. Jesse came up with the cost which was thousands of dollars cheaper then the several other estimates I have received. After agreeing on moving forward, Jesse played an active part in the entire project. He even provided me with his cellular number and always got back to me when any questions arose. The workers who came to install the insulation were very friendly and professional (I continuously talked to them, probably annoyingly). They took their time to assure that everything was done as promised and I even double checked their work. The next part of the project included a new slider and several windows. Jesse was on scene throughout the window installation and the final product was fabulous. Craftsmanship was impeccable and the windows and slider look great. Even after the project was complete, Jesse has contacted me to assure full satisfaction was met. I would recommend Clear Efficiency to anyone."
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System

+14

Response time20 mins
Response rate100%
20 neighbors recently requested a quote
Avatar for Hawx Insulation-Sacramento
Hawx Insulation-Sacramento
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Newcastle, 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 The Insulation Pros
The Insulation Pros
4.8(
35
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Newcastle, CA and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"I had called Insulation Pros for an estimate with very short notice as well as two other companies. Conrad was the second person to give me a detailed estimate also was more then pleased to come out to my house and write me a real in hand quote. He was on time and very informative on the project. The following Monday the 2 professional men came to my house and did the job that I was promised and within the time that was allotted. Cleaned up and was off to the next shortly after seeing if I was pleased with the job. These guys are awesome. I do recommend Insulation Pros to anyone thinking about getting insulation done.
Thank you and all your staff.
Chris K."
Blown-In Insulation
Batt Insulation
Insulation Removal
Air Sealing
Thermostat Controlled Attic Fans

+2

Recommended by96%of homeowners
Clear Efficiency Home Improvement
5.0(
48
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Newcastle, CA and surrounding areas

In business since 2019

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

Recommended by95%of homeowners
Avatar for Diamond Heating and Air
Diamond Heating and Air
4.8(
120
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Newcastle, CA and surrounding areas

In business since 1990

Free estimates

Credit card accepted

"They were fantastic! From Elaine who took my call to Eric who came to the house, the professionalism, courtesy, responsiveness and service I got from Diamond was top notch. On one of the hottest days of the summer when our A/C went out (naturally), they went out of their way to get to me ASAP. Then when Eric came to do the service call, he was efficient and thorough and very clear about what he was doing and why. 
I couldn't recommend this company more.
"
Additional Photos
Recommended by96%of homeowners
Showing 1-10 of 24
Insulation FAQs, answered by experts

Yes, covering exposed wires is necessary for several important reasons. Exposed electrical wires pose significant risks, such as electrical shocks, fires, short circuits, and potential damage to your home’s electrical system. By properly insulating and protecting the wires, you can minimize the potential for accidents, prevent electrical fires, and ensure your electrical system stays intact. 

Yes, an automatic pool cover retains heat. It can act as a thermal blanket because the heavy vinyl traps heat underneath, keeping the water warmer than if there wasn’t a cover. Keeping the pool cover closed when the pool’s not in use can also help reduce water utilities and save on pool chemical costs because there won’t be as much evaporation.

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

The primary reason that insulation saves you money over time is that it reduces your energy bills by making your home more energy efficient. A crucial part of an insulation system is a properly installed vapor barrier. Local building codes dictate whether your insulation requires a vapor barrier based on the type installed. While some high-quality wool insulation may not technically need a vapor barrier, most municipalities still require one to meet code.

Fiberglass is the best insulation for HVAC ducting because it's inexpensive, widely available, versatile, and long-lasting. Fiberglass also offers acoustic insulation in addition to thermal insulation, which can contribute to a more peaceful home environment. You can use other materials like mineral wool, but fiberglass is the industry standard.

The Newcastle, CA homeowners’ guide to insulation services

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