KTK logi — PVC window and door solutions
Reliable partner in Riga and surrounding areas
Aluminum and PVC windows and doors for various projects: apartments, private houses, new buildings, commercial premises, and other properties.
PVC window replacement in apartments
Quick replacement without mess in panel and brick houses.
PVC windows for private houses (installation)
Warm installation, panoramic windows, and sliding terrace systems.
PVC window installation in new buildings
Deadlines and volume according to schedule, safe work area.
Showcase and window replacement in commercial spaces and offices
We offer PVC and aluminum window solutions with warranty and precise deadlines.
Why clients choose KTK logi
5+ years of experience in PVC window installation
Responsive and precise specialists
400+ satisfied clients in Riga and surrounding areas
Recommendations and repeat orders
Warranty for PVC window installation
After completion — ongoing support
For private houses
PVC windows for private houses — installation and replacement in Riga and surrounding areas
Energy-efficient PVC windows for private houses: warm installation, panoramic windows, and sliding terrace systems.
- Triple-glass units + warm PVC window installation
- Panoramic windows and sliding terrace systems
- Measurements within 1–2 days, dismantling and disposal of old windows
- Warranty for installation and materials, after-service
Free consultation by phone • Service in Riga/region
Most popular GEALAN window systems
GEALAN S 8000 IQ — PVC window profile system
An energy-efficient and reliable PVC window system with 5 or 6 chambers. Ideal for homes where thermal insulation and security matter.
Learn moreGEALAN S 9000 — premium PVC window profile
A modern PVC window system with innovative triple sealing and excellent thermal insulation. Suitable for windows, doors, and sliding structures.
Learn moreGEALAN LINEAR MD — modern PVC window system
A stylish, energy-efficient PVC window system with clean lines and a contemporary design. Ideal for new builds and modern renovations.
Learn moreWhat is a 5- or 6-chamber window profile?
People often misunderstand — the number of chambers in a window profile is not the same as the number of panes.
Chambers are dedicated air channels in the PVC window frame that improve thermal insulation, sound insulation, and structural strength.
Important to remember: there’s no need to overdo profile thickness or the number of chambers. We will help choose the optimal solution for your needs so you don’t overpay and the window performs efficiently.
Chambers are dedicated air channels in the PVC window frame that improve thermal insulation, sound insulation, and structural strength.
- The more chambers, the better the window’s thermal performance and indoor quiet
- 5–6-chamber profiles are a modern, energy-efficient solution for homes with higher requirements
- Chambers are visible in a cross-section of the profile — they are the hollow air channels inside the structure
Important to remember: there’s no need to overdo profile thickness or the number of chambers. We will help choose the optimal solution for your needs so you don’t overpay and the window performs efficiently.
How do glazing units differ?
Beyond profile construction, the number of panes — i.e., the glazing unit — plays a major role:
- 1 pane — an outdated solution with very poor thermal insulation
- 2 panes — a standard double-glazed unit still used in some homes
- 3 panes — a triple-glazed unit with improved thermal and noise insulation
Our vision
PVC window replacement in Riga and surrounding areas, tailored to your needs.
Our mission
To provide a convenient and reliable window replacement service — from measuring to quality installation.
Our values
Precision and quality. We work carefully and on time — windows are the foundation of your home’s safety and comfort.