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Find Insulation pros in Sunnyvale

NxT Level Insulation
5.0(
9
)
Insulation - Install or Upgrade

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Last summer, even with the AC running constantly and the thermostat set at 72 degrees, the temperature inside the house would reach 80 degrees or higher. This summer is much better; the thermostat is set to 70 degrees, and the house actually stays at 70. Our electric bills are also reflecting this improved energy efficiency. Thank you Dillon, NxT Level Insulation for the outstanding work and exceptional customer service."
Additional Photos
9 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Harsin Energy Services - The Energy Savers
Harsin Energy Services - The Energy Savers
4.7(
167
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"Mr. Harsin inspected my attic and fully explained options and trade offs to improve my insulation. His crew came next day, were knowledgeable, completed the work and cleaned up afterwards."
An energy Efficient attic, with radiant barrier.
 A good insulation job. R-38. Formaldyhide free.
Radiant barrier installed. Now insulation.
old can lights waist $20 a year. I can fix that.
 Attic view. They are why you have so much dust.

+23

Response time8 hrs
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Remington Insulation and Ventilation
Remington Insulation and Ventilation
5.0(
25
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"Remington Insulation and Ventilation did a great job on our home. The crew was professional, on time, and easy to work with. We noticed the difference right away and really appreciate the quality of their work. Highly recommend."
Added R50
Added R50
Solar attic fan
Response time4 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Koala Insulation of Dallas
Koala Insulation of Dallas
4.8(
15
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"They had fair pricing. They were on time, efficient, communicated well, and cleaned up well before leaving. Very nice people to hire for insulation installation."
Professional, Friendly, Knowledgeable
Bluffview Insulation Upgrade
Response time7 hrs
20 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Attic Construction
Attic Construction
4.4(
86
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I wanted insulation blown in above the ceiling of my condo to lessen the noise from my neighbors above. Darren was very responsive and professional and knew exactly what I was looking for. The crew arrived on time, was very nice, and covered the house in plastic sheeting to protect everything from the incredible amount of dust created by drilling dozens of holes in the ceiling to shoot the insulation. Their subcontractor Robert arrived the next day to repair the holes and repaint the ceilings. He also was able to install can lights in my living room (separate job and quote from the job Attic Construction was doing). During installation of the lights, we discovered that some of the cavities that should have been filled by new insulation were not, due to a problem with the old insulation. One call to Darren and the insulation guys showed up early the next morning to take care of it. Robert the drywall guy and his helper Carlos did an amazing job repairing all the holes, you can't even tell that my ceiling looked like swiss cheese at one point. The reduction in sound coming from upstairs is noticeable due to the new insulation and I love my new lights. Be aware though that a job like this is incredibly messy and dusty but Attic Construction OC made it as easy as possible."
Dirty attic
Clean attic
Insulated attic
Response time6 hrs
Response rate96%
6 neighbors recently requested a quote
Avatar for Energy Attic
Energy Attic
4.3(
34
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"They were a bit over the rest of the company’s that I had out. But the pease of mind that I had knowing that they were going to do it right was worth it. During the bid Mike answered all my questions before I was even able to ask them. Made a great impression on me. They also worked well with me removing my old insulation myself. PLUS , they hauled off the old stuff for me at a great price!! Thx guys!"
Best Fiberglass installers in the world!
100 yr old house Foil and Fiberglass
Foil and Fiberglass
Tall Attic Foil and Fiberglass
Radiant Barrier and Fiberglass Insulation

+6

Response time2 days
10 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Climate Doctors
Climate Doctors
4.8(
3,289
)

Serving Sunnyvale, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Credit card accepted

"We had two separate appointments, one for duct cleaning and one to add insulation. Both crews were professional, clean, efficient and polite. They were all responsive to questions and feedback. I will definitely hire Climate Doctors again in the future and will have no problems referring them to friends, family, co-workers, and my Real Estate clients!"
Response time1 day
Response rate100%
25 neighbors recently requested a quote
Avatar for Team Enoch Eco DFW
Team Enoch Eco DFW
4.7(
400
)

Serving Sunnyvale, TX and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"I have never in my 70 years of living work with ANY company more professional than the Team Enoch HVAC Company!!! Starting with the owner to the office staff and the installers!!!! What a pleasurable experience. Thank you to all."
Recommended by94%of homeowners
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FAQs for insulation service projects in Sunnyvale, TX

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 Sunnyvale, TX 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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