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[Solved] Removal of the gas pipe from the apartment in the block of flats.

stomat 47421 18
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How can I completely remove the gas pipe from my apartment in a block of flats?

You can remove only the section that belongs to your apartment; the riser/common pipe stays, and any change needs approval from the housing community and the gas supplier, not DIY work. [#18159559] [#18159615] [#18160176] [#18160209] If the pipe is part of your installation behind the meter, a certified fitter can cut it, thread the end, and screw on a plug/cap; one user reported that this was exactly how it was done in practice. [#18160089] [#18291652] Before cutting, the line should be shut off and purged/filled with inert gas to avoid explosion risk. [#18160176] [#18160214] Several replies warned not to cut or grind it yourself and to notify the other residents/community first. [#18159589] [#18160010] [#18160209]
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  • #1 18159530
    stomat
    Level 39  
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    Hi, there is a flat in a 70's block of flats, of course. The block is managed by the community, the flat has been bought. It is on the top floor. I'm going to give up gas. Currently, it is so that a 1 or 1.5 inch pipe comes out of the kitchen floor in the corner, a gas meter outlet is welded under the ceiling, and the pipe is threaded above it, a socket and a plug are screwed in. I would like to terminate the contract, remove the gas meter, throw away the pipes from the gas meter to the stove, all this is not a problem, but what to do to get rid of this pipe completely? Cut and cork in the floor? It would be best for the neighbor below. How do you go about it?
    Removal of the gas pipe from the apartment in the block of flats.
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  • #2 18159559
    stanislaw1954
    Level 43  
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    It is possible to remove the pipe from the apartment, behind the meter, but not the main one, especially when it goes even further. In this case, it ends up in this apartment, so maybe it's real, but you have to deal with your gas supplier.
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  • #3 18159589
    Ssaab
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    You have to ask at the cooperative or the gas supplier. Don't do anything yourself!
  • #4 18159615
    vodiczka
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    stanislaw1954 wrote:
    In this case, it ends up in this apartment, so maybe it's real, but you have to deal with your gas supplier.
    Rather with the community. "Outdoor" installations are common, such as the pipe BEFORE the meter.
    The gas supplier owns the installations outside the building (upstream of the main gas valve), exceptions may apply.
    I understand that you have no intention of selling the apartment, but should that happen, the buyer must be able to restore the gas supply.
  • #5 18160010
    palmus
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    I would put a cork at the height of my floor.
    The most risky is to turn the gas vertically and unscrew it again. You absolutely must notify the other residents!
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  • #6 18160019
    stanislaw1954
    Level 43  
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    palmus wrote:
    I would put a cork at the height of my floor.
    After all, this main pipe is fully welded, how do you imagine the cork fitted?
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  • #7 18160068
    stomat
    Level 39  
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    Not completely, because there is a muff with a plug on the top. Screwed. I also imagined threading a pipe near the floor and screwing it with a plug, but there may not be enough space for the tap.
  • #8 18160089
    vodiczka
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    stanislaw1954 wrote:
    then how do you imagine putting on the cork?
    Fit the reduction with the plug thread and put it on :)
    Of course, not himself, but a certified welder.
    Before cutting the pipe, it must be emptied of gas and well ventilated to avoid BUM !!!
  • #9 18160092
    stanislaw1954
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    stomat wrote:
    Not completely, because there is a muff with a plug on the top.
    It must end with a thread, because how to install a valve. or counter?
    stomat wrote:
    I also imagined threading a pipe near the floor and screwing it with a plug, but there may not be enough space for the tap.
    It is best to cut with an angle grinder, without closing the gas, then maybe you will be blown up in the air together with a piece of block.
  • #10 18160154
    stomat
    Level 39  
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    Did you see the photo I pasted? Can this pipe not be terminated the same as it is now terminated only below? This sleeve is not welded on, but screwed onto the pipe.
  • #11 18160176
    robokop
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    stomat wrote:
    How do you go about it?

    From investigating the matter in the community. I doubt if anyone would let you remove the gas pipes, and if you could do it at your neighbor's place, forget it. Any cutting and fire treatment is excluded - because the installation should be cut off from gas and blown / filled with inert gas.
  • #12 18160209
    vodiczka
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    stomat wrote:
    Can this pipe not be terminated the same as it is now terminated only below? This sleeve is not welded on, but screwed onto the pipe.
    The pipe was probably threaded before it was welded into the installation. If you see the possibility of threading it after cutting it at a height of approx. 10 cm from the floor, try remembering our comments
    robokop wrote:
    the installation should be cut off from gas and purged / filled with inert gas.
    vodiczka wrote:
    Before cutting the pipe, it must be emptied of gas and well ventilated to avoid BUM !!!

    Either way, you should start by notifying the community board and getting approval.
  • #13 18160214
    robokop
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    vodiczka wrote:
    Before cutting the pipe, it must be emptied of gas and well ventilated to avoid BUM !!!
    Not aired. It is filled with an inert gas that displaces the air from it.
  • #14 18160609
    stomat
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    Of course, I am not going to do it alone in the wild, I would only like to hear your opinions about the possibilities to propose something in this community. But I can see most believe that IT CANNOT. This inert gas is a theory and so they probably do when welding the "Przyjaźń" pipeline. Gas in a pipe without air does not explode. Just as a tank full of gasoline does not explode like in the movies, vapors mixed with air are dangerous.
  • #15 18160689
    stanislaw1954
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    stomat wrote:
    Did you see the photo I pasted?
    A muff with a plug at the end of the pipe, as I guess, is on the customer's installation, because the photo does not allow you to look at the meter to determine where the inlet and outlet are.
  • #16 18160709
    vodiczka
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    stanislaw1954 wrote:
    A muff with a plug at the end of the pipe, as I guess, is on the recipient's installation,
    According to the art, it should be at the top end of the riser (that's how it is for me). The second is at the lower end of the riser.
  • #17 18160714
    stanislaw1954
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    vodiczka wrote:
    According to the art, it should be at the top end of the riser (that's how it is for me). The second is at the lower end of the riser.
    I am still wondering if this pipe (ended with a stopper) is behind or in front of the meter.
  • #18 18160716
    stomat
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    It is at the end of the riser, in front of the counter. Apparently in accordance with the art.
  • #19 18291652
    stomat
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    And now on the pipe. It turned out to be much simpler than it looked. Just like I thought, the pipe was cut, threaded and the cork was screwed on. The neighbor did not agree to cut him off. Nobody was blowing anything with noble gas, they didn't even turn off the gas, they were doing it "under the gas". The block is still standing. Removal of the gas pipe from the apartment in the block of flats.
    Don't look at the mess, the apartment is under renovation.
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Topic summary

✨ The discussion revolves around the removal of a gas pipe in a top-floor apartment within a 1970s block of flats. The user seeks advice on how to completely eliminate the gas pipe, which currently connects to a gas meter. Responses emphasize the importance of consulting the community management and gas supplier before taking any action. Suggestions include cutting the pipe and using a threaded plug to seal it, but caution is advised regarding safety and compliance with regulations. The community's approval is crucial, and any work should be performed by certified professionals to avoid risks associated with gas installations. The conversation highlights the complexities of gas pipe removal, including potential implications for future property sales.
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FAQ

TL;DR: Typical cut-and-cap happens about 10 cm above the floor; "start by notifying the community board." This FAQ explains approvals, safe methods, and options to remove or cap a gas riser stub in a block flat. [Elektroda, vodiczka, post #18160209]

Why it matters: This is for flat owners decommissioning kitchen gas who need a safe, compliant way to remove or cap the riser stub without risking leaks or disputes.

Quick Facts

Can I remove the gas riser pipe from my flat entirely?

Usually, no. The riser before your meter is communal infrastructure. The community can deny removal if it serves others. Expect a local cut-and-cap in your unit instead. Full removal across neighbors is rarely approved. “Any cutting and fire treatment is excluded” on live gas. Coordinate all access and methods through the community first. [Elektroda, robokop, post #18160176]

Who do I contact first: gas supplier or the building community?

Contact the community first. The pipe before your meter is part of the building’s common installation. The supplier owns installations outside the building, upstream of the main gas valve. The community must authorize changes to shared risers. This sequence avoids jurisdiction conflicts. [Elektroda, vodiczka, post #18159615]

Can I remove the main riser, or only the section after my meter?

You can remove your private piping downstream of the meter with approval. You cannot remove the main riser, especially if it continues past your flat. If the riser truly ends in your unit, discuss a formal termination with stakeholders before any work proceeds. [Elektroda, stanislaw1954, post #18159559]

How do pros safely cut and cap a riser stub?

They isolate the section and fill the pipe with inert gas to displace air. This prevents an explosive mixture during cutting. After purging, they cut, thread, and install a threaded cap. Ventilation alone is not the control; inerting is the standard method. [Elektroda, robokop, post #18160214]

Is it acceptable to work “under gas” without shutting off the riser?

One resident reported a cut‑thread‑cap performed under gas when a neighbor refused disconnection. The building remained intact. Treat this as an exception handled by professionals under strict controls. Policies and safety rules may forbid it. Never DIY live‑gas work. [Elektroda, stomat, post #18291652]

Can I cap the riser at floor level with a threaded plug?

Yes, with professional methods. Pros cut near the floor, machine threads, and install a plug via a reduction fitting. “Fit the reduction with the plug thread and put it on.” A certified welder or gas fitter must perform the work and remove flammable gas from the work zone first. [Elektroda, vodiczka, post #18160089]

Do I need my downstairs neighbor’s consent?

Yes, if work would occur in their unit or affects their supply. In the thread case, the downstairs neighbor refused a disconnection. The contractor then worked only inside the poster’s flat and left the neighbor’s line intact. Expect similar constraints. [Elektroda, stomat, post #18291652]

Where is the ownership boundary—before vs after the meter?

Piping before your meter is common building installation. The gas supplier owns networks outside the building, upstream of the main valve. Your private installation begins downstream of the meter outlet. Plan requests accordingly. [Elektroda, vodiczka, post #18159615]

What thread size or pipe dimensions am I likely dealing with?

In many 1970s blocks, residents encounter 1–1.5 inch riser pipes. Confirm on site before ordering fittings. A pro will measure, then select the right reduction and cap. [Elektroda, stomat, post #18159530]

What approvals or documentation should I prepare?

Request written permission from the community board to alter a shared installation. They may require a reversible termination so a future buyer can restore gas. The supplier’s remit is outside the building and upstream of the main valve. Align your plan with these boundaries. [Elektroda, vodiczka, post #18159615]

What are the risks of using power tools or hot works on a gas line?

Ignition and explosion. Open flame or grinding on a gas‑filled line can light an explosive mix. “Any cutting and fire treatment is excluded.” Pros isolate and purge with inert gas before cutting. Do not treat live‑gas work as acceptable. [Elektroda, robokop, post #18160176]

What tools and fittings are used for a clean finish?

Contractors use a pipe cutter or saw, a threader, sealing compounds, and an approved reduction plus a threaded plug. A certified welder or gas fitter executes and leak‑tests the joint for tightness and compliance. [Elektroda, vodiczka, post #18160089]

How do I plan a compliant cut‑and‑cap?

Follow these steps with a licensed contractor:
  1. Get written approval from the community board.
  2. Arrange isolation and purge; pros displace air with inert gas.
  3. Cut about 10 cm above the floor, thread, cap, and verify tightness. [Elektroda, vodiczka, post #18160209]

Will removing the riser affect resale or future reinstatement?

Yes. Leave a capped, accessible termination so a buyer can restore gas later. Communities expect reversibility. Removing communal sections may block reinstatement and complicate resale. Plan a neat, reversible cap at your floor. [Elektroda, vodiczka, post #18159615]

Should I DIY any part of this?

No. “Don’t do anything yourself!” Gas work demands licensed competencies, building approvals, and controlled procedures. Hire authorized contractors only and coordinate with the community board. [Elektroda, Ssaab, post #18159589]
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