We hired Kozak Renovation (owner – Yuriy) to renovate the main floor of our house, including the kitchen, bathroom, and ceiling. At first, everything seemed fine, but recently we discovered something shocking: both the bathroom and kitchen exhaust fans were not vented outside at all — they were simply dumped into the attic.
As a result, mold started to grow inside our roof structure, and our children, who suffer from allergies, began having serious allergic reactions. When we called a professional mold inspection service, they confirmed that the ventilation was installed incorrectly and did not meet Ontario Building Code requirements.
Now we are facing significant... read full review
November 2025
There are a lot of mistakes in work. he doesn't want to fix it.
November 2025
We hired Kozak Renovation (owner – Yuriy) to renovate the main floor of our house, including the kitchen, bathroom, and ceiling. At first, everything seemed fine, but recently we discovered something shocking: both the bathroom and kitchen exhaust fans were not vented outside at all — they were simply dumped into the attic.
As a result, mold started to grow inside our roof structure, and our children, who suffer from allergies, began having serious allergic reactions. When we called a professional mold inspection service, they confirmed that the ventilation was installed incorrectly and did not meet Ontario Building Code requirements.
We hired Kozak Renovation (owner – Yuriy) to renovate the main floor of our house, including the kitchen, bathroom, and ceiling. At first, everything seemed fine, but recently we discovered something shocking: both the bathroom and kitchen exhaust fans were not vented outside at all — they were simply dumped into the attic. As a result, mold started to grow inside our roof structure, and our children, who suffer from allergies, began having serious allergic reactions. When we called a professional mold inspection service, they confirmed that the ventilation was installed incorrectly and did not meet Ontario Building Code requirements. Now we are facing significant... read full review
There are a lot of mistakes in work. he doesn't want to fix it.
We hired Kozak Renovation (owner – Yuriy) to renovate the main floor of our house, including the kitchen, bathroom, and ceiling. At first, everything seemed fine, but recently we discovered something shocking: both the bathroom and kitchen exhaust fans were not vented outside at all — they were simply dumped into the attic.
As a result, mold started to grow inside our roof structure, and our children, who suffer from allergies, began having serious allergic reactions. When we called a professional mold inspection service, they confirmed that the ventilation was installed incorrectly and did not meet Ontario Building Code requirements.
Now... read full review