Why this score
- Price transparency. The price per square metre including installation is published openly.
- Years in business. The founding year named by the company was counted.
- Response to criticism. Yandex Maps shows a reply to every author of a low rating.
- Customer reviews. Listings on 2GIS and Yandex Maps were counted.
- Warranty. Seven years on installation, as the company states. The scoring rules are set out in the methodology.
What the company does
The website balkon-spb.com offers cold, semi-warm and warm glazing, replacement of developer-fitted frames with warm ones, and frameless, sliding and panoramic systems. Finishing, insulation and insect screens are available, with PVC, aluminium or timber profiles. The site mentions its own production. The company also handles approval with the building's management, joining a loggia to the room, high-rise work by industrial climbers and made-to-measure furniture, choosing the design by building series. The price list names the profile systems: Provedal from RUB 2,340 and Slidors from RUB 2,940 per m². The surveyor's visit is free and includes a design project, the contract fixes dates and the final price, and the site is cleaned after the job.
Warranty and years in business
The site description promises up to ten years, but the lower figure went into the calculation. The simplest cold glazing with installation cost from RUB 2,340 per m² on 8 October 2026.
Nearby places
Derevyannye okna SPb, one line higher, is ahead with a warranty one year longer. Oknosfera and StroyKomfort in sixth and seventh place score 9.4 and 9.3 for reviews, but both cover installation for five years only.
Questions and answers
How long is the warranty?
Seven years according to the company; the website mentions up to ten.
When was the company founded?
In 2011, by its own account.
Can developer-fitted frames be replaced?
Yes, cold glazing is replaced with warm glazing as a separate service.
How much does the simplest balcony glazing cost?
From RUB 2,340 per m² with installation.


