I would like to highlight the quick response from the company to my request. I submitted a request for a cost estimate for a foundation slab on their website, and just 2 minutes later, an employee from IS-Stroy called me. They asked a lot of questions and provided guidance on construction prices. Additionally, there’s a nice bonus on the website – a coupon for a gift with the drainage system. A well as a gift – I took the coupon, and we'll see how the guys fulfill their promises next year when I order drainage from them!