About Us

Moisture Sources and Solution, LLC defines our success by achieving the highest level of customer satisfaction possible.  We specialize in;



  • Mold removal/Encapsulation
  • Creosote odor removal
  • Removal of pet and urine odors


We are proud to say we partner with EnviroShield-USA 






                                      Salvatore Costanzo

               Founder │CEO │Director of Sales │Operations


Salvatore Costanzo founded Moisture Sources and Solutions, LLC in 2003. He is also the founder and CEO of EnviroShield, LLC which provides the main products used by our experts.


He has been in the encapsulation industry for over 25 years. Working extensively with home owners, realtors, and business owners across the country; he is a proven provider of an affordable, permanent solution to mold, creosote, and unwanted pet odors.

Introducing Dr.John Sloyer


Dr.John Sloyer received his Master’s and Doctoral Degrees from West Virginia University School of Medicine. His expertise is Infectious Disease Microbiology and has held positions in Medical Schools, Industry, and the Federal Government. Dr. Sloyer has developed a variety of test systems focusing on rapid diagnostics and is currently the Science Officer for Moisture Sources and Solutions focusing on the control of microbial growth especially mold.



Dave Previti





I am a results-driven executive who thrives on building strategy and vision for high performing sales and technology organizations. A self-directed highly motivated strategic thinker with a track record of large team success. I have been a leader with a strong passion for customer service and performance. My expertise includes a combination of Operations, Recruiting/Retention, Sales Coaching/Leadership, Strategic Innovation, General Management. I possess exceptional people skills and a demonstrated ability to work with cross-functional teams and personnel at varying levels within organizations.

Worked on strategic key initiatives including piloting/rolling out a new National Mortgage Partnership Plan and as part of a selected team for creation/implementation of DOS, District Operating Standards.

         Responsible for overall operations, budget, employee recruitment, development & training for the District.

•        Strategic Team member that created and implemented training & program strategies. Driving my District to attain top performance among other Districts throughout the Country.

•        Assisted RVP & National Sales Director in rolling out new compensation plan in the Country.

•        Worked directly with SVP of Sales, VP of Marketing  over a one year period, creating, implementing & testing a localized marketing program unique to our Online Business model.

•        Adapted and embraced corporate philosophy. Learned to reach out and create team culture amongst the peers within the organization.



* Recruiting/Retention

* Sales & Service Education

* Strategic/Technical Initiatives

* Extensive CRM Systems Experience      

* Internet Lead Conversion Maximization 

* Multi Location Leadership

* SEO/SEM      

* Compensation Analytics

* Multi-Million Dollar P&L Management    

* Forecasting/Reporting/Analysis

* Vendor Negotiation        

* Executive Level Presentations       

  • Mega Size Team Coaching/Leading

  • Real Estate Sales & Marketing Training

  • 12+ years Real Estate Sales

  • 4+ years as the District Director, Real Estate, of a large South Shore & Cape Cod office.

  • Operations Technical Manager of a $7MM Start-Up 1/2hr photo industry business. Including the Designing, Hiring, Training & Development of 1/2 Photo Kiosks for the Supermarket Industry throughout the Country.

  • Ability to train and motivate Teams.

  • Navy Veteran

    Yearly Volunteer Wounded Warriors Project



Want to find out more about our company and the products we use.? Read what our customers have to say.

Please contact me directly with any questions.

Where to Find Us:

Moisture Sources and Solutions,LLC

Phone: (508) 339-0414

Email: salcos43@outlook.com




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  • Home/Medical Buildings
  • Commercial Buildings
  • Commercial Storage
  • Attics
  • Basements
  • Crawl Spaces
  • Creosote Odor Removal
  • Pet Odor Removal
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