Clay Duncan

Indoor Environmental Management

Title: Production Manager, Northeast Region

Clay Duncan has been in the field of home building, maintenance, fire and water restoration for 15 plus years. Clay has had extensive training and has complete knowledge of carpentry, flooring installation, and major construction maintenance. Clay’s certifications include IICRC WRT and ASD. 

When he is nor working, Clay enjoys spending time outdoors whether it is fishing, hunting, golfing, or playing disc golf. 

Customer Reviews
About Me
  • By Tanju C.
    Jacksonville, FL

    "I can highly recommend IEM. They were very professional, tremendously courteous, and surprisingly inexpensive regarding all the..."

    Customer Review

    By Tanju C.
    Jacksonville, FL

    I can highly recommend IEM. They were very professional, tremendously courteous, and surprisingly inexpensive regarding all the work that had to be done.

  • By Clint D.
    Jacksonville, FL

    "Having mold/mildew issues is a huge concern for families and to have a solution like yours to transform a crawl space and create..."

    Customer Review

    By Clint D.
    Jacksonville, FL

    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 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!
  • "I can highly recommend IEM. They were very professional, tremendously courteous, and surprisingly inexpensive..." Read Full Testimonial

    Tanju C. of Jacksonville, FL

    Customer Testimonial

              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.
    Tanju C.
    Jacksonville, FL
  • "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
Before and after photos from jobs I've worked on:
  • Crawlspace Encapsulation in Jacksonville, FL
    Before
    Crawlspace Encapsulation in Jacksonville, FL
    After

    Crawlspace Encapsulation in Jacksonville, FL

    The homeowner had experienced moderate damage to his subfloor in his living room. After contacting an engineer, the engineering firm explained that there was an excess of moisture buildup in the crawlspace that was causing his subfloors to bulge. After contacting us, we did determine that the best course of action was to encapsulate the crawlspace with CleanSpace vapor membrane and add a Triple Safe Sump Pump to monitor excess moisture since he lived in close proximity to a waterway and naturally had a high water table. Now, after a year of having the system installed, not only is the problem resolved, but the homeowner can live with a peace of mind of not worrying about moisture buildup in the crawlspace again!  

  • Basement Encapsulation & Waterproofing in Jacksonville, FL
    Before
    Basement Encapsulation & Waterproofing in Jacksonville, FL
    After

    Basement Encapsulation & Waterproofing in Jacksonville, FL

    There was a historic home on the waterfront, in which the basement would be prone to flooding. Apart from the dank, musty/mold smell, there would be physical water in the basement. Our crews came and after excavating down to the foundational wall discovered that the foundation wall was structurally failing. After rebuilding the foundation and applying waterproofing agent HML 5000, the crews then updated the basement systems by installing a Triple Safe Sump Pump and finished by installing the Cleanspace Vapor Barrier System and Sani-Dry Dehumidifier to monitor the humidity and control water. Now, the basement no longer smells and remains completely dry, even when there was a hurricane that hit the region!   

  • Cleaning & Disinfecting a Jacksonville Crawl Space
    Before
    Cleaning & Disinfecting a Jacksonville Crawl Space
    After

    Cleaning & Disinfecting a Jacksonville Crawl Space

    Our crew removed all debris and old insulation from this crawl space in Jacksonville, FL.  They then cleaned and disinfected the sub-flooring systems. 

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