About Us

Indoor Enviormental Management has over 30 years of experience serving Northern Florida for all waterproofing and indoor air quality needs. We are also a proud member of the Basement Systems Network, a collective of highly trained waterpoofing contractors across the USA and Canada. With a wide variety of services geared towards making a happier and healtheir home for our valued customers. Reach out today for your free, no obligation estimate! 


Services Provided

  • +Basement Waterproofing

    • Basement Dehumidifiers
    • Basement Floor Crack Repair
    • Basement Wall Crack Repair
    • Basement Window Installation & Replacement
    • Basement Window Well Installation & Replacement
    • Exterior Basement Waterproofing
    • Interior Basement Waterproofing
  • +Crawl Space Waterproofing & Encapsulation

    • Crawl Space Access Doors
    • Crawl Space Encapsulation & Repair
    • Crawl Space Flood Vents
    • Crawl Space Pump Out Service
    • Crawl Space Vapor Barrier
    • Crawl Space Vent Covers
    • Dig Out Crawl Spaces
  • +Radon Testing & Mitigation

    • Multi-Family Home Radon Mitigation
    • Multi-Family Home Radon Mitigation System Inspection
    • Multi-Family Home Radon Testing
    • Radon Mitigation
    • Radon Mitigation System Inspection
    • Radon Testing
  • +Remodeling

    • Basement Flooring
  • +Sump Pump

    • Sump Pump Installation & Replacement
    • Sump Pump Repair & Service

Company Highlights

  • 24/7 Emergency Service
  • Residential & commercial services
By Allen
Pertains to all categories: I found the entire experience professionally and efficiently done.
By Sal
Good follow-up with customer on survey results.
By Tyler
Hardwood floors are now separating - this was mentioned as a possibility, but I wonder if it is more of a probability.
By Reggie
I had the honor of working with John Hassler of Indoor Environmental Management on a particularly dicey transaction. John Hassler was absolutely amazing dealing in with a disastrous mold situation. I was thinking this deal was dead in the water but Mr. Hassler navigated the ship through murky waters and we pulled it into harbor. There is no doubt that had it been anyone else but Mr. Hassler that deal would have died quickly! I would and have recommended Indoor Environmental Management to any one wanting the BEST IN THE BUSINESS! Not only was Mr. Hassler beyond professional in his knowledge he is capable of explaining the situation in terms buyers and sellers understand in a calming tone. Truly enjoyed my transaction with IEM and John Hassler!
By Lorin
Great work! Thank you.
By John
I cannot thank you all enough for sticking with me through a frustrating home selling experience. You added value to my home for me and the future owner.
By Andrea
Good Morning Jodie, I wanted to start off by saying that we are very happy this far with the work that has been done, The crawl spaces are looking absolutely amazing and we cannot wait to see what the finished product looks like and how it holds up
By Marie
Our architect and subcontractor are also very impressed with the quality of your work. Thank you.
By Tanju
I wrote a review on Angie's List as well.
By Clint
Having mold/mildew issues is a huge concern for families and to have a solution like yours to transform a crawl space and create a safe environment for the home is a blessing.
By Justin
By LUKE
By Peter
By Henrietta
By Gregg
By Belinda
By Patty
By Joanne
By Julianna
By Karen
H. S.
Tallahassee, FL
Just a note to tell you how appreciative I am for the effort you have put forth for me in the matter of the mold on the floor joists of the home I am selling. Selling a family home is always stressful but to find it has issues that I was unaware of raises the stress level. You have my genuine gratitude for the serviceand attentiveness you have provided. Thank you!
Richard G.
Tallahassee, FL
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.
Valerie B.
Tallahassee, FL
"John, Thank you! You were extremely helpful to me! -Valerie"
Tania P.
Tallahassee, FL
Greetings.  Now that the flood risk is over and things are getting back to normal, I just want to say thanks.  It meant a lot to know that if I needed to have the equipment moved from under the house that your company was on stand-by to do so.  I am very grateful.   Thanks! Tania
Dr. C.
Tallahassee, FL
John I just wanted to thank you for doing an excellent job and a beautiful job as always. You are a master at what you do and the Tennis court has never drained better. Thank you very much. 
Reggie J.
Tallahassee, FL
I had the honor of working with John Hassler of Indoor Environmental Management on a particularly dicey transaction. John Hassler was absolutely amazing dealing in with a disastrous mold situation. I was thinking this deal was dead in the water but Mr. Hassler navigated the ship through murky waters and we pulled it into harbor. There is no doubt that had it been anyone else but Mr. Hassler that deal would have died quickly! I would and have recommended Indoor Environmental Management to any one wanting the BEST IN THE BUSINESS! Not only was Mr. Hassler beyond professional in his knowledge he is capable of explaining the situation in terms buyers and sellers understand in a calming tone. Truly enjoyed my transaction with IEM and John Hassler!
Sandra R.
Tallahassee, FL
To everyone at IEM, Thank you, thank you, for your very propt service and wonderful crawl space reconditioning, everything was great! Highly recommend to anyone who needs this job done! 
Mr. C.
Tallahassee, FL
John B.
Tallahassee, FL
"Thanks to John Hassler for the portable A/C's - really made life much more bearable for my wife. By the way, it is really nice down there! They did a great job, all business, efficient, professional. Actually enjoy crawling around down there!"
Martha C.
Tallahassee, FL
The garage would flood every time it rained. The storm water came down the hill on the side of our home and shoot into the garage. My brother as well as a good family friend who is also a contractor in town both recommended we call John at Indoor Environmental Management. He specifically said, “you have to go with John Hassler and Indoor Environmental if you want the job done correctly.” I worked with both Todd and John and they were super helpful during the project. For the crew – I cannot say enough good. I never did cross paths with them, but my son did. The mammoth changes from day to day were amazing. I felt nothing but confidence in them. They left the yard and work space fastidiously clean. I am a master gardener and they took better care of my plants and replanted them better than I would have. This meant so much to me, and I could not be happier.   Once the job was done, I could tell an immediate difference in the smell and the way the floor felt. The house did not have a musty odor anymore and the floors were much sturdier. I do a lot of yoga in the back room where the wood rot was and now the floor does not shake as it used to. Overall, I enjoyed working with Todd, John, and the IEM crew. I would highly recommend them to anyone that was in need of their service. 
John L.
Tallahassee, FL
  When John L. was trying to sell his Tallahassee. FL home. a home inspector told him that the fiberglass insulation that was once installed in the crawl space, between the floor joists was in really bad shape and under such conditions, it was impossible to make a proper assessment. John L. had insulation removed and a second inspection revealed even more problems: there was mold and dry rot was beginning to compromise the structure. The high humidity was causing condensation and water was dripping from the air ducts onto the floor, creating puddles on top of a newly installed moisture barrier. In an attempt to find someone to fix these problems, John called several contractors. HVAC companies. Indoor Environmental Management and another area company that provides crawl space encapsulation services. "Only Indoor Environmental. not only said they would cover all of the basics: fixing the wood rot, fixing the moisture. the duct work, and basically cleaning it all up. They were also going to guarantee it for the future." -- explains John. "Going with Indoor Environmental, everything was finished, everything was done, the price was definitely better than having each thing done separately. So I can't recommend them anymore than that!"
Larry D.
Tallahassee, FL
I want to compliment you and your organization for the excellent job performed in the encapsulation of the crawl space of my residence.  Relative humidity in the crawl space is being maintained at the desired level. The work performed was of high quality and completed in a very expeditious manner.  In addition, your recommendations, suggestions, and answers to my questions were very helpful in my understanding of the work to be performed .  This gave me the confidence that your organization would do a good job. Thank you for a job well done.
Ward H.
Tallahassee, FL
Indoor Environmental Management did some great work for me.  I spoke to the owner, John Hassler, Sr, and the next day they were out at my house getting to work.  I never even saw the crew since I was at work all day, but I could see the progress they were making.  At the end of the job, they left the work area clean.  I didn’t have to pick up any mess at all.  I’ve been very happy with the work they did and I would definitely recommend them to everyone I know.
Sara C.
Tallahassee, FL
A few months ago we had an odor in our home that we couldn't figure out. We asked everything we could think of, the air condition repair man, pest control, the plumber. No one could find what the issue was. I started to think I was going crazy! Eventually, we called Indoor Environmental Management. They were professional and thoughtful and took time to answer all our questions. Best of all, they found the problem and fixed it! I'd recommend them any time. 
Julia G.
Tallahassee, FL
My husband and I were looking to buy a home, but it had a roof leak in the past. I'd heard a lot about mold on the news and I wanted to be sure our new home would be safe for our new family. We had the home inspected by Indoor Environmental Management and they found mold in the crawlspace. We hired them to fix the issue. I was a little nervous about it, but they made it a painless process. They were professional and prompt and got the job done! Now we can rest easy about starting a family in our safe, mold free home!
Donald G.
Tallahassee, FL
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. 
John L.
Tallahassee, FL
I cannot thank you all enough for sticking with me through a frustrating home selling experience. You added value to my home for me and the future owner. Todd was extremely helpful and understood my situation. I got other competitive estimates, however in my situation IEM offered a fair estimate that solved each issue. Everything was explained and the follow up was thorough. 
Big Bend Homeless Coalition
Tallahassee, FL
By helping the Big Bend Homeless Coalition, you help a neighbor experiencing homelessness reach their goal of stable housing. Thank you for your contribution. 
Steve S.
Jacksonville, FL
Andy; Just wanted to give you a quick report and BIG thank you.After all the rain we have had this week, our crawl space is DRY! I crawled under the house this morning and could not find any wet spots. The pump is working well and sending water out onto the driveway - as designed. The system is working perfectly. So thank you. In the past, we would have had significant standing water until I hooked up the pump. Also, with the dry system and dehumidifier, I do not have to worry about mold growing!Just wanted to let you know Andy and thank you. Have a great weekend.Cheers – Steve
Tanju C.
Jacksonville, FL
Our frame house is located right on the river and has a basement. Its size is approximately 1,500 square feet with about 1/3 on soil and 2/3 on concrete slab. The basement was quite damp and during strong rains could take on about 2 inch of water. The old sump pump could minimize the damage, but the accumulative damage was pretty strong. Especially in a frame house the structure is very susceptible to water and the damage and odor travels throughout the house. When we bought the property last fall we decided right away that this has has to be fixed right away. After researching a couple of companies we decided to go with IEM. They were courteous on the phone and were ready to dispatch a specialist the next day for a free estimate. PJ arrived at our house and did a thorough inspection. Since nothing had been done in the 100 years before (except for the old sump pump) and our location right on the river he recommended to encapsulate the basement and install further water barriers around the property. So in detail they performed the following: Basement Encapsulation: ---------------------------------- - remove old insulation, regrade the dirt, clean and disinfect the subflooring system - dig a trench around the perimeter of the basement - install a pipping system and and backfill the drainage system - remove all 15 windows units and replace it with newer windows - install drainage matting throughout the basement ground cover - remove old sump pump and install a sump pump with 2 failover systems - ensure all trench systems feed into the sump pump for max efficiency - install a 20 millimeter thick polythene membrane on the ground - install the polythene membrane on the wall to a height of 4 feet - install an industrial sized dehumidifier to eradicate any further excess moisture Foundation Wall Repair: -------------------------------------- - remove plants, pavers and anything else which might interfere with work progress - excavate soil around foundation wall completely around the building to about 2 feet - clean and prep foundation wall surface - repair mortar joints and concrete block surfaces - apply a coating of surface bonding cement to all foundation wall surfaces - apply commercial waterproofing compound on all of the surface areas of the foundation wall and footer- install a french drain system and a discharge line around parts of the perimeter   The contract price was set fixed at around $45k and IEM estimated a 2-3 week time frame. During the project Clay and his amazing team encountered tons of unanticipated issues. The strong roots from the trees around the building had disintegrated the walls much more than was visible at first. Many bricks where simply hollowed out and Clay and his team were rebuilding a good part of the wall foundation completely from scratch. Since we're located in a historic district IEM could not simply install new windows, but were painstakingly remodeling each of the 15 windows by hand (sanding down, paint in previous color, sand clean each glass plate, fix all joints) and now those historic windows look like new. IEM also took care of getting the permits from the historic society to make the necessary changes. Clay and his team worked highly professional and efficient. Nevertheless it took more than double the anticipated time to finish the project. All the trouble with the windows was neither in the contract nor was it anticipated. Nevertheless IEM did not charge us a dime extra. I can highly recommend IEM. They were very professional, tremendously courteous, and surprisingly inexpensive regarding all the work that had to be done. Moreover, there were so many aspects to consider and it was great to have the same points of contact for all those issues (Clay and PJ). Both were very responsive to any concern and addressed them all. Moreover, even the company owner and basement guru John come out several times to make sure everything went smoothly. We feel very happy that we chose IEM. Our once damp basement which was ruining our frame structure is now a dry basement and solid for the next 50 years! The odor is completely gone and the whole house should get less hot in summer and less cold in winter. 
  • Crawl Space Encapsulation in Tallahassee, Florida - Before Photo
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    Crawl Space Encapsulation in Tallahassee, Florida - After Photo
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    Crawl Space Encapsulation in Tallahassee, Florida

    This homeowner in Tallahassee was tired of being unable to use their old crawl space with ripping insulation and nasty looking walls. They called our office at Indoor Environmental Management and we sent out a crew to transform their crawl space right away. Our crew installed a patented CleanSpace Vapor Barrier system and now the homeowner is pleased with their healthy and attractive storage solution!

  • Waterproofing Job in Tallahassee, FL  - Before Photo
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    Waterproofing Job in Tallahassee, FL  - After Photo
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    Waterproofing Job in Tallahassee, FL

    The building had previously been waterproofed. The sealant had deteriorated and failed -- This was allowing water to infiltrate through the cinder block into the conditioned area. Our crew dug trenches along three of the four exterior walls, cleaned the debris and dirt off the walls, applied a waterproofing sealant, and lastly, filled the trenches back in. 

  • Crawlspace Encapsulation and Storm Water Drainage Solutions in Tallahassee, FL - Before Photo
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    Crawlspace Encapsulation and Storm Water Drainage Solutions in Tallahassee, FL - After Photo
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    Crawlspace Encapsulation and Storm Water Drainage Solutions in Tallahassee, FL

    The Indoor Environmental Management team cleaned and disinfected the entire wood floor system in the crawlspace. The original crawlspace access door and sump pump were also replaced. A proper vapor barrier was installed with complete coverage of the crawlspace soil floor, with no exposed gaps, up the foundation walls, and wrapped around all support piers. A Sanidry CX was also installed with discharge lines to the exterior of the residence. 

  • Retaining Wall to Stop Water Intrusion in Tallahassee, FL - Before Photo
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    Retaining Wall to Stop Water Intrusion in Tallahassee, FL - After Photo
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    Retaining Wall to Stop Water Intrusion in Tallahassee, FL

    The IEM crew built a retaining wall along the edge of the downhill slope on the side of the house. Behind the wall, they installed french drains and used membrane to keep water from seeping through the wall. 

  • Moldy Crawl Space Repaired in Tallahassee, FL - Before Photo
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    Moldy Crawl Space Repaired in Tallahassee, FL - After Photo
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    Moldy Crawl Space Repaired in Tallahassee, FL

    This homeowner in Tallahassee was having serious issues with mold growing in their crawl space. Not only can excessive mold hurt your property's value, a moldy crawl space environment can put your family's health at risk as well. The CleanSpace Vapor Barrier that our crew installed is made of completely inorganic materials and manufactured with an antimicrobial finish that will never support the growth of mold. The homeowner is now worry-free with a clean and healthy crawl space under their home.

  • Crawl Space Encapsulation in Tallahassee, FL  - Before Photo
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    Crawl Space Encapsulation in Tallahassee, FL  - After Photo
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    Crawl Space Encapsulation in Tallahassee, FL

    John L. was trying to sell his home in Tallahassee, Florida. During an inspection he was told there was mold and leaking duct work in his crawlspace. John immediately hired a company to spray for mold and he cleaned the area himself. 

    Right away a buyer put an offer on the home and as well had an inspection done on the home. STILL - there were many issues in the crawl space. John called HVAC people, Ductwork companies, and other companies that do encapsulation and got estimates from each. After much research he found that Indoor Environmental Management could do all of the work and guarentee the job!