John Hassler, Jr. (J.D.)

Indoor Environmental Management

Title: Engineering Director

John Hassler, Jr. (J.D.) from Indoor Environmental Management

J.D. is Indoor Environmental Management’s Operations Manager. With a background in Engineering, John Hassler, Jr. is a valuable asset to the team. He has gone through many hours of through training to increase his knowledge of the industry. J.D.’s certifications include CMR, CIE, and most recently is a certified radon mitigation and measurement technician through the National Radon Defense program. 

Customer Reviews
About Me
  • By Sal A.
    Tallahassee, FL

    "Good follow-up with customer on survey results."

    Customer Review

    By Sal A.
    Tallahassee, FL

    Good follow-up with customer on survey results.

  • By Tyler M.
    Tallahassee, FL

    "Hardwood floors are now separating - this was mentioned as a possibility, but I wonder if it is more of a probability."

    Customer Review

    By Tyler M.
    Tallahassee, FL

    Hardwood floors are now separating - this was mentioned as a possibility, but I wonder if it is more of a probability.

  • By Lorin B.
    Tallahassee, FL

    "Great work! Thank you."

    Customer Review

    By Lorin B.
    Tallahassee, FL

    Great work! Thank you.

  • By Richard G.
    Tallahassee, FL

    Customer Review

    By Richard G.
    Tallahassee, FL

Testimonials
from customers I've helped!
  • "John Hassler and the entire team were true professionals." Read Full Testimonial

    Richard G. of Tallahassee, FL

    Customer Testimonial

              I am a very satisfied customer of Indoor Environmental Mgmt. John Hassler and the entire team were true professionals. They went above and beyond to insure that our crawl space concerns were addressed. He (John) took ownership of the problem which gave us confidence that the remedy (encapsulation and structural) would be done the right way even if it exceeded the original quote. Additionally, our job was completed ahead of the schedule and I have never seen such a hard working implementation crew as Carlos's team. Everyone we dealt with at IEM was responsive and professional.
    Richard G.
    Tallahassee, FL
  • "The basement already feels drier. Mr. Hassler is such a great guy, I have already referred him and Indoor..." Read Full Testimonial

    Donald G. of Tallahassee, FL

    Customer Testimonial

              It was about a year after we bought our house we started to notice flooding in the basement. On a consistent basis whenever it would rain back to back we would get about an inch and half to two inches of rain and then it would slowly go away. Then after one very heavy rain the basement had about 7 or 8 inches of standing water; you can see the line on the basement walls. It was finally time to call a professional. We first reached out to the previous owner of the home to see if they recommended anyone, and they gave us Mr. Hassler’s name. We also met with other groups and did some research. When we did a walk thru with Mr. Hassler I was more than pleased with his outstanding knowledge and historical data of the problems. He not only knew some ideas of where the problem could be coming from, but he also knew information regarding the rain patterns. Apparently when the house was built there was not as much rain as we get now. He explained that the detailing of the house needs to be updated for the upper trending of rain in our region. I was very pleased to have him on board. At the beginning of the project, Mr. Hassler gave me a quote for the entire job. Not one time did he ever change that quote or add expenses that were not discussed with me prior. I thought that was very honorable, and would love a chance to work with him again, but hopefully we won’t need his help or services! At first I was nervous about the pump because of the amount of water, I wasn’t sure if it would work. We turned it on during a super heavy rain and it worked like a charm. The basement already feels drier. Mr. Hassler is such a great guy, I have already referred him and Indoor Environmental Management to my neighbors and co-workers.
    Donald G.
    Tallahassee, FL

our service area

We serve the following areas

  • Atlantic Beach
  • Brooker
  • Bryceville
  • Callahan
  • Day
  • East Palatka
  • Elkton
  • Fernandina Beach
  • Flagler Beach
  • Fleming Island
  • Florahome
  • Glen Saint Mary
  • Green Cove Springs
  • Greenville
  • Hampton
  • Hastings
  • Hilliard
  • Jacksonville
  • Jacksonville Beach
  • Jasper
  • Jennings
  • Keystone Heights
  • Lake Butler
  • Lake City
  • Lawtey
  • Lee
  • Live Oak
  • Lulu
  • Macclenny
  • Madison
  • Mc Alpin
  • Melrose
  • Middleburg
  • Monticello
  • Neptune Beach
  • Orange Park
  • Palatka
  • Palm Coast
  • Pinetta
  • Ponte Vedra
  • Ponte Vedra Beach
  • Raiford
  • Saint Augustine
  • Saint Johns
  • Sanderson
  • Starke
  • Waldo
  • Wellborn
  • White Springs
  • Yulee
Our Locations:

Indoor Environmental Management
8821 W Tennessee St
Tallahassee, FL 32304
1-850-634-4017


Indoor Environmental Management
University Blvd
Jacksonville, FL 32216
1-904-323-4475