Meet the Team

Brandon Hartman

Wimmer Roofing & Exteriors

Title: General Contractor

Hometown: Windsor, CO

Brandon Hartman from Wimmer Roofing & Exteriors

Brandon Hartman, President of Wimmer Roofing, has been with the company for over 3 years. He is a General Contractor who takes a hands-on approach to running the business. On a daily basis, Brandon wears many hats, from taking out the trash to meeting with prospective customers.

Brandon loves when customers see the value that Wimmer can add to their home through restoration, and considers that his favorite part of the job. He finds success in being able to learn new things in order to be the best in his industry that he can be. “I firmly believe that if you really care about your customers, and always do what is best for them, success will naturally be the result,” says Brandon.

After working in the industry over the years, Brandon has some advice for potential customers who are thinking about hiring a roofing contractor. Brandon says, “Interview a number of contractors until you find someone you feel comfortable with. If you feel comfortable with a few of them, work with them to come to a spec sheet of what you want or need from your new roof. Make your contractors show value on your terms, not theirs.”

When Brandon is not working, you can find him home brewing, spending time outdoors with his wife of 3 years, and attending cheerleading events and soccer games for his two step-daughters. 

Customer Reviews
About Me
  • By Charles R.
    Greeley, CO

    Customer Review

    By Charles R.
    Greeley, CO

  • By Joanne M.
    Windsor, CO

    Customer Review

    By Joanne M.
    Windsor, CO

  • By Joseph B.
    Aurora, CO

    "After a brief struggle with some miscommunications about the contract in the beginning Monica Lowrey became involved and was our..."

    Customer Review

    By Joseph B.
    Aurora, CO

    After a brief struggle with some miscommunications about the contract in the beginning Monica Lowrey became involved and was our only contact person throughout the entire job. Her knowledge of working with uncooperative mortgage companies and the ins and outs of how to obtain the individual payments from the mortgage company was very impressive. She not only do the job of an office worker but she was quite adept at handling issues in the field with the construction workers and Painters. She even got up on a ladder one day with the painter to inspect some gutters that were not painted. She scheduled all of the contract labor and notified us on the day each crew would be at our house to complete their jobs and she gave us projected dates that were very accurate of completion of each other projects. When we received payment he came to our home to pick the checks up personally so we would not have to drive or leave my home do to my illness of cancer. I would recommend Wimmer Roofing to all my friends Neighbors and anyone else who is seeking to have a roof repaired house painted fence painted in gutters installed all because of the efforts of Monica Lowrey. I don't feel there are enough good things we can say about Monica and her customer service your thoughtfulness for consideration her knowledge of her job and for her personally accepting all responsibilities of the issues that were created in the beginning that made me and my wife very uneasy upset and stressed out. Please allow Monica to see this survey and it would be my opinion as a private business owner to do everything possible to keep Monica happy and pay her accordingly for the work she does and her commitment to Wimmer Roofing company . I was very disgruntled in the beginning of the project and was actually considering going with a different roofing company. Monica did not beg us to stay with him she simply asked us to give her a chance to make things right. She gave us her personal guarantee that she would see to everything being completed accurately Timely and with limited involvement from us. After every project was completed she came to the house to inspect it with us and make sure we were completely satisfied. We have been in the customer service business 14 years and we have never met a person or employee that can compare to monica. Without Monica it is highly likely we would have opted to go with a different roofing company. I've had the opportunity to but I would like to personally thank Monica and express our gratitude to her personally. It is not often in this day and age that we find employees that are that committed to their employer and Company. If Monica ever needed a job she would be the first person I called to ask her to come work for our company. Please make sure that Monica received all the credit she deserves. I would like to hear from her boss or the owner of the company so that I know she was recognized for going above and beyond to make sure we were completely happy with the repairs of our home. She is more than just an asset Wimmer Roofing. She is a very big reason this company is likely successful. I would be happy to speak with anybody that would like to call me to discuss anything else in reference to this company its employees and specifically Monica. Thank you Joseph

  • By Lori D.
    Lakewood, CO

    Customer Review

    By Lori D.
    Lakewood, CO

  • By Chuck T.
    Lakewood, Co., CO

    Customer Review

    By Chuck T.
    Lakewood, Co., CO

from customers I've helped!
  • "Wimmer was on it!" Read Full Testimonial

    Levi Y. of Elizabeth, CO

    Customer Testimonial

              Roof was put on in January. Install went rough but when I called Wimmer Roofing and Exteriors and they were on it to correct problems. There is re-work to be done. I am sure Wimmer Roofing will take care of as well.
    Levi Y.
    Elizabeth, CO
  • "Wimmer Roofing President Leads by Example! Wimmer Roofing and Exteriors- CLASS (2016) ACT! President,..." Read Full Testimonial

    Charyl R. of Windsor, CO

    Customer Testimonial

              I just want to say thank you for being a class act and person! We didn't have our roof done but our neighbor did here in Windsor, CO. It happened to be yesterday on my sons graduation day. We were having a graduation party. Although we were just going on with our party not overly bothered by the sound of the work going on next door we walked out to find a card for my son stuck in our door. It had an apology for the noise. A congratulations on his graduating and a gift for him as well. That for sure is a company run by a great person! Thank you! That made the/his day that much more special. It showed him that there really are caring people in the world.
    Charyl R.
    Windsor, CO
  • "Thank You!" Read Full Testimonial

    Patrick O. of Denver, CO

    Customer Testimonial

              Thank you for your sponsorship of the 2016 Trusted Choice Big "I" Jr. Classic held in the Greeley and Ft. Collins communities. Over 100 participants and their families recognized your support. We were successful because of you!
    Patrick O.
    Denver, CO
  • "Love My New Roof!" Read Full Testimonial

    Michael and Kim K. of Highlands Ranch, CO

    Customer Testimonial

              I love our new roof! I will definitely recommend your company to any of my friends, family and neighbors that need a roof. Thanks so much, Kim Krause
    Michael and Kim K.
    Highlands Ranch, CO
  • "You have been a pleasure to work with." Read Full Testimonial

    Peter and Jean K. of Arvada, CO

    Customer Testimonial

              Monica and Wimmer Team Thank you for your patience during the roof fiasco. You have been a pleasure to work with! Sincerely, Peter and Jean Kirk
    Peter and Jean K.
    Arvada, CO

Company Awards

View All Awards

Owens Corning Roofing Platinum Preferred Contractor
Owens Corning Roofing Platinum Preferred Contractor
Five Star Rated Certificate of Recognition- Boulder, CO
Five Star Rated Certificate of Recognition- Boulder, CO
Five Star Rated Certificate of Recognition- Colorado Springs, CO
Five Star Rated Certificate of Recognition- Colorado Springs, CO
Before and after photos from jobs I've worked on:
  • New Roof, Gutters, Paint and Fascia Repair in Aurora
    New Roof, Gutters, Paint and Fascia Repair in Aurora

    New Roof, Gutters, Paint and Fascia Repair in Aurora

    This was a complete exterior renovation.  From tearing off existing 3- Tab shingle then re-roofing with Owens Corning Duration Storm Shingle.  During this time roof deck was de-laminated in many areas.  New OSB sheathing was installed prior to underlayment and shingle installation.  Second, the low slope roof that covered the patio on the rear was constructed to increase the roof deck pitch to make a better water drainage system.  Next was soffit and fascia repair to water damage and wood rot areas before the gutters.  Then finally the exterior was refreshed by a complete new paint job.

our service area

We serve the following areas

  • Agate
  • Atwood
  • Ault
  • Aurora
  • Bennett
  • Briggsdale
  • Brighton
  • Byers
  • Calhan
  • Carr
  • Colorado Springs
  • Commerce City
  • Deer Trail
  • Eaton
  • Elbert
  • Elizabeth
  • Evans
  • Fort Lupton
  • Franktown
  • Galeton
  • Gilcrest
  • Gill
  • Greeley
  • Grover
  • Hereford
  • Hudson
  • Johnstown
  • Keenesburg
  • Kersey
  • Kiowa
  • La Salle
  • Lucerne
  • Merino
  • Milliken
  • New Raymer
  • Nunn
  • Padroni
  • Parker
  • Peyton
  • Pierce
  • Platteville
  • Ramah
  • Roggen
  • Severance
  • Simla
  • Sterling
  • Stoneham
  • Strasburg
  • Watkins
  • Windsor
Our Locations:

Wimmer Roofing & Exteriors
6830 Broadway, Unit A
Denver, CO 80221