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15 Years In Business

Company Details

Contact

P.O. Box 24224
Overland Park, KS 66223

Hours

  • Mon: 7:00 AM - 6:00 PM
  • Tue: 7:00 AM - 6:00 PM
  • Wed: 7:00 AM - 6:00 PM
  • Thu: 7:00 AM - 6:00 PM
  • Fri: 7:00 AM - 6:00 PM
  • Sat: 7:00 AM - 6:00 PM
  • Sun: Closed
View All Details & Credentials

Achievements

Service Details

  • Small Jobs Welcome

Areas of Expertise

  • Batt, Rolled or Reflective Insulation - Install or Upgrade
  • Blown-In Insulation
  • Energy Audit
  • Attic Fan, Roof Mounted Attic Fan, Gable Vent, and Whole House Fan
  • Solar Attic Fans
View All Offerings and Cities Served
Deals

Cost Information

  • Free Estimates
  • Warranty Offered
  • Credit Cards Accepted
  • Free Offer

    Free Offer! Get attic seal free when purchasing reflective i ...

    Claim This Deal

Ratings

4.9
230 Verified Reviews
  • 5
    219
  • 4
    8
  • 3
    1
  • 2
    0
  • 1
    1

Highly rated for

  • Overall Rating
  • Value
  • Customer Service
  • Quality
Showing 1-10 of 230 results
5.0 Brandy S. Kingsville, MO
6/3/2026

Stuart was very professional. He was timely and prompt and did exactly what he said he would do and for the cost quoted. I didn’t realize how rare that is becoming. He was communicative and explained things thoroughly and provided photo documentation of the work that was done in the attic. He even educated me that we have all the needed electrical wiring for an attic fan (we will be hiring him again for that to be installed at a future date).

5.0 Mel A. Kansas City, MO
2/25/2026

Work was done on time at the quoted price, which was significantly lower than competing bids. Highly recommended.

5.0 Lester M. Shawnee, KS
12/12/2025

Green Star Energy did a very good job. They listened to my concerns about the problems in my attic and provided a detailed action plan to correct those problems. Green Star Energy performed the work efficiently and in a timely manner. I would recommend Green Star Energy.

5.0 Andy B. Kansas City, MO
12/11/2025

A sole proprietor business, Green Star provided a very competitive itemized written bid. Stuart was very accommodating in considering old (>100 years) home challenges and discussing insulation options and solutions. Promptly arrived on scheduled date, his team was diligent in adding blow in insulation to attic and exterior wall space, as well as foam to basement sill plates, all in one day. Very friendly, knowledgable, professional and unobtrusive in providing their services.

5.0 Dorri T. Kansas City, MO
8/18/2025

Stuart was very professional and exceeded my expectations with service and quality. He always explained what he was about to do, even when he came to bid the job. After his inspection, he asked could he sit down and complete the bid. Stuart took the time to explained each line item and cost, then asked if I had questions. Once I accepted his bid, he explained in detail what would occur each day and gave approximate timeframe for job to be completed.He was on time each day and gave a progress report at the end of each day. Stuart, President of GreenStar Energy, was on the job everyday, all day . He takes pride in his company and it shows. I highly recommend this company for all your insulation projects. You will not be disappointed.

5.0 Mike H. Trimble, MO
8/14/2025

Stuart was great to work with. He was very reasonable, punctual and friendly. Job was completed as promised in two days. Highly recommend green star energy.

5.0 Michelle S. Blue Springs, MO
5/21/2025

I can’t begin to express how great the entire experience was from the estimate to the finished installation! Stuart is very professional. On time. Knowledgeable. Clean. Detailed. Highly recommend! He installed an attic fan. I will have him back to add insulation in my attic soon! Pricing is more than fair! I had other bids, they didn’t compare to Green Star Energy! For all that was done, it should have been the highest bid but it wasn’t. If you are looking for a company to install an attic fan or any insulation, ventilation work, you will not regret choosing this company. I should have taken more pictures! He had drop cloths from the front door down the hall to the end of the work area. He cleaned as he worked so there was never a mess. Very little dust at any given time I looked. When he finished, my house looked just like it did before he arrived plus a new fan! If I could give more than 5 stars I would! ⭐️ ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️ 10/10 - I recommend

5.0 Jennifer C. Kansas City, MO
5/18/2025

Stuart was great! Got the job done quickly for a reasonable price. Highly responsive. Highly recommend.

5.0 Kylie S. Olathe, KS
3/31/2025

Stuart was great! Other companies quoted me for thousands more and he was able to come in and just fix the problem instead of trying to scam me into a sale.

5.0 Lori C. Kansas City, MO
3/15/2025

Stuart was meticulous and great to work with. Thank you!

Photos

Green Star Energy
2
Craig K.
3
May Yim
3
Carl U.
3
Testerman Job
3
Bonanno Job
2
Larson Project

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