A Warsaw tenement flat stripped back to bare brick and lime plaster, with exposed timber joists, a steel prop under a new opening and the Palace of Culture through the window

Masonry, construction and interior finishing in Warsaw.

A Warsaw flat stripped back to brick · Generated illustration

We build, renovate and finish spaces in Warsaw.

PIWI Sp. z o.o. is a one-person company on the Warsaw register. The building work and the finishing sit with the same company, so there is no handover in the middle of a job where responsibility quietly changes hands.

What the work looks like

PIWI has no published portfolio. These are the kinds of work the company register supports, shown as illustrations rather than as records of completed jobs.

A wall opened up and propped with a steel post during renovation
01 Structural openings Cutting and spanning openings in existing walls. Generated illustration
Fresh brickwork with raked joints beside a new opening spanned by a steel lintel
02 Brick and block work The principal activity on the company register, 43.91.Z. Generated illustration
A wall part-way through being skimmed, a trowel resting on a plaster-covered hawk
03 Plaster and finishing Skim coats, junctions and the details that close a room. Generated illustration
A finished room with oak herringbone flooring and a tall window with a deep reveal
04 Finished interiors A flat or a single room brought back into use. Generated illustration

Our areas of work

Two activities are recorded on the company register and no more. What it records is a classification rather than a licence, so anything beyond it is worth confirming before you plan around it.

  1. Construction and masonry

    Masonry is the principal activity on the company register: brick and block work, walls, and the openings cut through them.

  2. Interior finishing

    The stage after the building work — surfaces, junctions and the details that decide whether a room is finished or nearly finished.

  3. Renovation and refurbishment

    Work on interiors that already exist, at any size from a single room to a whole flat or a small commercial unit.

A renovation starts with a clear reading of the space.

Start a conversation

Three practical steps

The same route on every job, whether it is one room or a whole flat.

  1. 01

    Understand the space

    Start with what exists, what needs to change and how the finished space should work.

  2. 02

    Define the work

    Clarify scope, priorities, timing and the information needed to prepare the project.

  3. 03

    Build and finish

    Carry the agreed work through from construction tasks to the details that complete the space.

On the public register

Company
PIWI SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
KRS
0001265221
NIP
1133212380
REGON
545701491
Registered
9 September 2026
Registered office
Kobielska 69/3, 04-371 Warsaw, Poland

The sole shareholder is also the only member of the management board. The whole entry can be read free of charge in the Ministry of Justice register under KRS 0001265221.

Before you call

Four things worth knowing, including what this company is not registered to do.

What kind of project can I discuss with PIWI?

Construction, renovation, refurbishment, masonry and interior finishing work for a home or a commercial space. Design work, and electrical or plumbing installation, are not among the activities on the company register, so ask before assuming they are included in a job.

Where is PIWI based?

The register gives one registered office: Kobielska 69/3, 04-371 Warsaw, in the Mazovian voivodeship. Ask about availability for your own address and dates.

Who would I be dealing with?

PIWI is a one-person company, so the person you contact is the person who decides rather than passing it along. The register entry shows both the ownership and the board.

How do I ask for pricing?

Call or email with a short description of the work, the project address, approximate timing, and any drawings or photographs you have. Pricing depends on the actual scope, existing conditions, materials and timing, so a proper conversation comes before any estimate. Whatever is agreed is then set out in a separate written contract; nothing is concluded through this website.

Start a conversation about your project.

There is no form here on purpose. Call or write and it reaches the person who decides, not a queue.

Call +48 665 590 261 Email [email protected] Registered office Kobielska 69/3, Warsaw (opens a map in a new tab)