Dos

Construction LLC

Washington state (WA)

My name is David Semenov, and I am the founder and owner of Dos Construction. I have been working with tile for many years, mastering all the details and techniques of installing tiles of any size and format. Before starting my company in the United States, I worked in various European countries, gaining extensive experience with a wide range of materials — from brick and concrete to modern finishes.

Our company has been operating successfully in the U.S. for over two years, offering clients precision, attention to detail, and European-quality craftsmanship. We handle projects of any complexity, carefully select materials, and focus on creating beautiful, long-lasting results.

Contact us! Tell us about your tile project today.

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All About 45° Miter Cuts: Precision and Craftsmanship

45° Miters: Elegant Precision in Every Detail

Imagine two tiles meeting at a perfect angle, creating a seamless, almost invisible transition. This is the 45-degree miter — a fine detail that turns a standard interior into a masterpiece:

  • Precision and Harmony
    When performing a 45° miter, the exact thickness of the tile is trimmed so the joint is flawless. No metal trim pieces — just craftsmanship, attention, and precise geometry.

  • Premium Style
    Using 45° miters gives the surface a sense of lightness and clean design. This approach is seen as an architectural accent, guiding the eye and highlighting intentional design choices.

  • Aesthetic Value
    In modern interiors, visual details matter more than ever. A 45° miter creates a feeling of unity and sophistication — as if the tile grew naturally from the space rather than being installed onto it.

  • An Investment in Satisfaction
    This choice isn’t just about style; it’s an investment in the pleasure of your living space. Want a shower that impresses? Fewer distractions, maximum effect — the 45° cut delivers.

Professional Preparation and Waterproofing for Tile Installation

The quality of tile installation starts with proper surface preparation. We carefully inspect every surface: leveling walls and floors, meeting building tolerances and industry standards (ANSI, TCNA).

For reliable results, we use premium waterproofing systems:

  • Kerdi, Vedi, and other professional-grade membranes;

  • Full waterproofing systems certified under ANSI A118.10;

  • Additional crack-isolation membranes to extend the life of your tile work.

These solutions provide 100% protection against moisture in showers and bathrooms, preventing hidden leaks and damage. We don’t use cheap alternatives—only trusted brands that guarantee long-lasting reliability.

Our approach:

Every project begins with meticulous preparation: a solid foundation, high-quality waterproofing, and strict adherence to installation standards. This ensures durability, a flawless finish, and complete confidence in the results.

  1. Geometry is the foundation of quality
    Quality tile installation starts with precise geometry: all corners should be leveled, joints aligned, and edges finished cleanly and accurately.

  2. Tile quality matters
    Even brand-new tile can have size variations, especially if it’s not premium-grade. Before starting work, a professional should show the client these differences and explain how they may affect the final look.

  3. The installer’s skill is 80% of success
    A skilled tile installer can make even uneven tile look neat, but a perfectly flawless result is only possible when using high-quality materials.

  4. Transparency and honesty
    The installer should explain all the details of the installation process, show samples, and discuss possible compromises if the tile has variations or manufacturing defects.

What Clients Should Know About Tile Installation