Renovations that pass inspection.
From fire-safety design and building permit through structural engineering and change-of-use to turnkey handover – including heritage protection. We take care of everything, from first site visit to final approval.
From idea to handover.
Give us your project — we handle the entire path. Authorities, fire safety, structure, building permit, change-of-use, heritage protection and turnkey construction.
- 01 Site survey
- 02 Fire-safety concept
- 03 Structure & engineering
- 04 Building permit & approval
- 05 Change-of-use
- 06 Heritage coordination
- 07 Turnkey construction
- 08 Final inspection & handover
All trades. One responsibility.
SEALDEX delivers complete renovations, fit-outs and fire-safety upgrades — with an in-house team and trusted partners for structure, building services and fire-safety engineering.
Permits & Change-of-Use
We guide your project through the Berlin building authorities – including change-of-use applications, submission documents and agency communication.
More →Fire safety
Fire-safety concepts and reports with certified specialists, F112/F113-compliant documentation up to building class 5.
More →Structure
Structural strengthening, roof extensions, ring beams, wall plates – with our structural engineers and inspectors.
More →Heritage
Construction within listed heritage stock, coordinated with the Lower Heritage Authority.
More →Turnkey renovation
From shell to handover. All trades, one point of contact, one schedule and one budget.
More →Interior fit-out
Drywall, plaster, paint, tile, flooring – cleanly aligned with plumbing and electrical.
More →Commercial fit-out
Medical practices, offices, hotels, sauna venues – with hygiene, acoustic and ventilation concepts.
More →Tile work · large-scale
Complete tile installations across Berlin's new-build districts – High Park, A SPACE, The Yard, Mauerpark MP3.2 and many more.
More →Projects that have been inspected.
Fire-safety final reports, partial occupancy approvals, heritage-compatible renovation — a selection of current and completed projects.
Rohbau & Dachtragwerk Milinowskistraße 11
Milinowskistraße 11, 14169 Berlin
Tesla Gigafactory Berlin-Brandenburg
Gigafactory Berlin-Brandenburg, 15537 Grünheide (Mark)
Am Treptower Park 39 – L&L Apartments
Am Treptower Park 39, 12435 Berlin
Konstanzer Straße 6 – Apartments City-West
Konstanzer Str. 6, 10707 Berlin
Wielandstraße 5 – Komplettsanierung & Apartments
Wielandstr. 5, 10629 Berlin
Berlin period buildings, fully refurbished.
Selections from current projects. Stucco preserved, parquet restored, bathrooms and kitchens rebuilt — with full responsibility for fire safety and structure.
Construction with one point of contact.
Owner-led by Z. Fridman. A permanent team in Berlin, bilingual (DE/RU), working closely with structural and fire-safety engineers and building-services planners.
We take projects end-to-end — from site survey through permit and approval to final acceptance and handover.
More about us
We listen to your project first.
Initial conversation, site visit and fixed-price quote — usually within a week.
Submit your project