Meet The Owner
Meet owner Rusty Tweed, leading with a passion for eco-friendly solutions. With extensive experience, Rusty ensures safe, effective mold removal.

Rusty Tweed, Owner of MOLD ZERO
Meet the owner and founder of Mold Zero, LLC. Rusty Tweed is originally from Waterloo, Ontario where he studied Mechanical Engineering. Realizing early on that working in a cubicle crunching numbers all day was great for his mathematical skills, but horrible for his social and business skills, Rusty struck out on his own in 1980 to be an entrepreneur and hasn’t looked back since. Over the years Rusty has had various successful businesses, but he was always looking for a business that helped people, had no side effects for anyone or the environment and was affordable to those who needed it.
When his wife Carol, who began having health issues from an unseen mold problem, came across the “Signature Fog” technology, Rusty and his wife spotted an opportunity to build a great business. Today Rusty still is involved in his other business ventures and has left the day to day operations to his son and partner Cassidy along with Dominic, but still keeps a hand overseeing and working on ways to expand the mold elimination business in both Clearwater, FL and Los Angeles, CA.


Rusty Tweed’s History with Mold and its Effects
Prior to 2014 I had no awareness of mold and it’s potential damaging effects on a person’s health. In 2002 we moved into a beautiful old Mediterranean home (built in 1926) in Los Angeles, that my wife had found and we had fallen in love with. Unfortunately we had no idea that our dream home was loaded with a hidden, but very lethal growth, mold…
Scroll forward 10 years and we find my wife having issue after issue with her immune system, feeling terrible and not doing well physically. She would have medical handlings, would improve then 4-6 months later would find herself in a decline with her health all over again. Finally after years of this pattern, she had a particular blood test which showed that she had fungus in her blood. Initially this was a mystery to us, but after some research we decided to have our home tested for mold.

Rusty Tweed’s History with Mold
Prior to 2014 I had no awareness of mold and it’s potential damaging effects on a person’s health. In 2002 we moved into a beautiful old Mediterranean home (built in 1926) in Los Angeles, that my wife had found and we had fallen in love with. Unfortunately we had no idea that our dream home was loaded with a hidden, but very lethal growth, mold…
Scroll forward 10 years and we find my wife having issue after issue with her immune system, feeling terrible and not doing well physically. She would have medical handlings, would improve then 4-6 months later would find herself in a decline with her health all over again. Finally after years of this pattern, she had a particular blood test which showed that she had fungus in her blood. Initially this was a mystery to us, but after some research we decided to have our home tested for mold.

Rusty Tweed’s History with Mold and its Effects
Prior to 2014 I had no awareness of mold and it’s potential damaging effects on a person’s health. In 2002 we moved into a beautiful old Mediterranean home (built in 1926) in Los Angeles, that my wife had found and we had fallen in love with. Unfortunately we had no idea that our dream home was loaded with a hidden, but very lethal growth, mold…
Scroll forward 10 years and we find my wife having issue after issue with her immune system, feeling terrible and not doing well physically. She would have medical handlings, would improve then 4-6 months later would find herself in a decline with her health all over again. Finally after years of this pattern, she had a particular blood test which showed that she had fungus in her blood. Initially this was a mystery to us, but after some research we decided to have our home tested for mold.

Identify Potential Mold Issues in Your Home or Office
Mold thrives in moist environments, often hidden from plain sight. While Mold Zero specializes in mold removal and remediation, it’s crucial to recognize potential signs of mold in your property, and confirm via testing. Understanding these signs can help you determine the need for our expert remediation services in the greater tampa bay area.

Confirmed Mold? Trust Mold Zero for Guaranteed Remediation
If mold testing has confirmed the presence of mold in your property, Mold Zero is ready to address and resolve the issue with our cutting-edge technology. We will eradicate mold, bacteria, and viruses from your environment, ensuring your safety and health.





Reviews can appear in a number of places on the web but the glue that binds all of these sources of reviews together is Google.

NORMI (National Organization of Remediators and Mold Inspectors) is committed to developing the best training for professionals in the fields of Indoor Air Quality, Drinking Water and Mold.

IICRC (Institute of Inspection Cleaning and Restoration Certification) a non-profit organization for the Inspection, Cleaning, and Restoration Industries provides training and certification, that is recognized as the standard in most states.

BBB Accreditation signifies trust and integrity, and an unwavering commitment to consumers.
Mold Zero is a fully certified firm and maintains a high standard in remediation and customer care. We are proud to be listed as a trustworthy business.

For 21 years, the Angie’s List Super Service Award has honored excellence among top reviewed companies.
Angie’s List has been a trusted name for connecting consumers to top-rated service professionals. Mold Zero is proud to have earned the home service industry’s coveted Angie’s List Super Service Award (SSA).

Porch’s aim is to connect homeowners with prescreened, local service professionals to carry out homeimprovement, maintenance and remodeling.
- Abatement Services
- Mold Removal Services
- Mold Remediation
- Whole Home Sterilization
- Emergency Water Dry-out
- Water Damage Restoration
- Interior Storm Damage Restoration


What Our Customers Say
EXCELLENT Based on 270 reviews Eric Cantor2025-03-06Trustindex verifies that the original source of the review is Google. I had a positive experience with Mold Zero. They focused on minimizing demolition while still fully addressing the mold issue, which I appreciated. Matt was attentive, responsive to questions, and even stopped by a couple of times during the job to make sure everything was on track. Justin and Tony handled the demolition cleanly and efficiently. There was one minor-issue which arose during the job which was immediately addressed without issue. Overall, a professional and well-done job Lyndsie Ezell2025-03-06Trustindex verifies that the original source of the review is Google. Matt with Mold Zero was great to work with! I reached out on a Tuesday, and Matt came for an in person quote the next day, and they were able to fit our service in that week! The whole team from admin/coordinators to the remediation team were very communicative. They called when they were on their way, when they were leaving, and let me know the schedule for the following day/service. We purchased our house last year and our master bedroom always had a damp mildew smell. It is now gone after Mold Zero's service! Worth every penny! Kimberly Turnbull2025-02-13Trustindex verifies that the original source of the review is Google. Matt, Randy and Anthony were great to work with and they did a thorough job remediating the subsequent mold in our home after hurricane Helene flooded it. Larry Hooker2025-02-07Trustindex verifies that the original source of the review is Google. Professional service. Responsive and timely Howard Silver2025-02-07Trustindex verifies that the original source of the review is Google. Justin was easy to work with. Communication was excellent througho Joel and Chamille did fantastic work. The hose is in good shape and the job finished on time and on budget. Shirley Taylor2025-02-06Trustindex verifies that the original source of the review is Google. We recently had mold damage in our condominium, the technicians came out and did an excellent job: Jon Turner2025-02-04Trustindex verifies that the original source of the review is Google. I am a happy Mold Zero customer. Quoting/pricing was responsive and timely, they got onsite and kicked off the project in days. The crew of Matt and Jonai (I know I spelled that incorrectly) did a fantastic job. I needed holes cut in ceilings, and the work was done cleanly with proper barriers and cleanup. That was just one part of a two part job. The other side of the house required getting mold out of boots and ventilation. I was worried I would require a mass rebuilding but they got in there, cleaned it out, treated everything…I am very pleased. Thanks! TD2025-02-04Trustindex verifies that the original source of the review is Google. Brian, Randy and team did an excellent job. Karin Deleurand2025-01-31Trustindex verifies that the original source of the review is Google. Mold Zero provided excellent work! I can highly recommend their services. Matt came out to home immediately and addressed our concerns with an excellent plan. Anthony and Jayjon carried out the job perfectly shortly thereafter. Both Matt and Anthony were very responsive to our requests and concerns prior to and after the mold mitigation. We can highly recommend this Mold mitigation team of experts. After hurricane Milton, we now have a home where we can breathe freely again! Thank you! Giancarlo Sainato2025-01-30Trustindex verifies that the original source of the review is Google. I contacted Mold Zero after Hurricanes Helene and Milton damaged the inside of our 14k sq ft commercial warehouse. Special thanks to Anthony, Jayion, Matt, and Bryan and especially Anthony for running the job on site. The entire team was diligent in finding any and all mold even some that was outside of our initial scope. Highly recommend Mold Zero.
100% Guaranteed Clean Bill of Health
Mold Zero services provide a protective barrier over your entire home or office making it impossible for mold spores to thrive.
Professionally Certified Staff

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