# Can you stay home during a repipe, and how long is the water off? > How long the water is off during a repipe, why it is off only at cutovers, staying home through it and how two-flats share a shutoff. Plan your week. URL: https://chicagolakerepiping.com/guide/living-through-a-repipe/ Learn Why the water stays on through the bulk of a repipe and goes off only when a section is switched over, what the quote should name in advance, and how to plan a house or a two-flat around it. Last Updated: October 25, 2026 **Yes, households can stay home through a repipe, because the water is off only during the cutovers.** The new piping is run while the old system keeps working, and the water goes off when a section is switched from old pipe to new. The quote should name the working days and the water-off windows before work begins, so they can be planned around. [Chicago Lake Repiping](https://chicagolakerepiping.com/) offers and manages [whole-house repiping](https://chicagolakerepiping.com/whole-house-repiping/) and [two-flat repiping](https://chicagolakerepiping.com/two-flat-repiping/) across Chicago and nearby Cook County suburbs, with the work done by licensed and insured plumbing contractors. This guide explains how a repipe is staged around the people living in the building and what to ask before the first day. Key takeaways - New pipe is installed alongside the old, so the building keeps water while the routes are built. - Water is off only during cutovers, when a section moves from old pipe to new. - The quote lists the working days and the water-off windows in advance. - In a two-flat, the shared main cutover takes both units off at once and is named ahead of time. - Walls stay open until the new piping passes its pressure test. ## Why the water doesn’t have to be off for the whole job A repipe is mostly building new routes: running the main along the basement joists, carrying risers up through closets and chases, making each branch to a fixture. None of that needs the old pipe out of service. The old system keeps feeding the house while the new one goes in beside it. The water goes off when a part of the system changes over. At a cutover, the main shutoff is closed, the old section is drained, and the new section is connected in its place. A house can have one cutover or several, depending on how the work is divided: all at once at the end, or one floor or one bathroom at a time. More cutovers mean shorter windows each time but more of them; fewer mean less disruption overall but longer windows. Which plan fits depends on the building, the fixtures that have to stay in use and the people living there. What matters for planning is that the windows are known in advance. The quote should say how many cutovers there will be, on which days, and how long each one leaves the water off. The [cost guide](https://chicagolakerepiping.com/guide/repiping-cost-chicago/) notes that staging around an occupied building can add days to the job, which is part of the price. ## The main shutoff decides how cleanly the house isolates Every cutover starts at the [main shutoff](https://chicagolakerepiping.com/main-water-line-shutoff-replacement/), the valve near the meter where the service line enters the building. The first visit starts there for that reason. An old valve that will not close fully, or that is seized open, means the building cannot be isolated cleanly, and in that case replacing the shutoff becomes part of the scope. Work on the meter itself, or on the connection to it, needs a separate water permit in Chicago and is planned before the interior cutovers. At the end of the job, the new shutoffs are labeled so anyone in the house can find and close them later: the main, each branch valve and the stops under each fixture. ## What changes in daily life Between cutovers, the kitchen, bathrooms and laundry work as usual. The things that change are access, noise and the rooms where walls are open. - **Access.** The work needs clear paths to the basement, the meter, the water heater, closets on the riser routes and the space under sinks. Clearing them before day one saves time. - **Open walls.** Openings are cut at fittings and turns and stay open until the new piping is pressure tested and inspected. Furniture against those walls has to move. The [plaster walls guide](https://chicagolakerepiping.com/guide/repiping-plaster-walls/) explains where openings go and how they are closed. - **Hot water.** Reconnecting the water heater is one of the cutovers, so hot water is off for that window too. - **Dust and debris.** Cutting plaster makes dust. Ask before work starts how each opening is protected and cleaned up, and plan to cover or move what is near the openings. It helps to keep some drinking water on hand for each water-off window and to schedule laundry and dishwashing around the days in the quote. ## After each cutover When a new section comes into service, it is flushed to clear debris from the work. Scale knocked loose from old valves and galvanized pipe can travel to the first faucet downstream, so aerators and fixture screens are cleaned after the cutover. A burst of discolored water or air in the lines right after a cutover is debris and trapped air working out, and it is expected to clear as the lines are flushed. If it does not, say so. The [Chicago repiping permit guide](https://chicagolakerepiping.com/guide/chicago-repiping-permit/) covers the City inspection, which happens before the work is covered. ## Two-flats with a rented unit In a [two-flat](https://chicagolakerepiping.com/two-flat-repiping/), one basement main can feed both units, so the cutover of that shared main takes water from both households at once. That window has to be named in advance and agreed with whoever lives in the other unit. The upstairs riser may or may not have its own valve; where it does, some cutovers can be limited to one unit. Homeowners who rent out one floor ask whether the work can be done without affecting them. Not entirely, but with the windows planned and shared ahead of time, the disruption is limited to the cutovers. Plan the shutoff windows with the household in the rented unit and check what notice your lease and the City’s rental housing rules require before a planned shutoff. The [two-flat repipe cost guide](https://chicagolakerepiping.com/guide/two-flat-repipe-cost-chicago/) covers how staging around two households affects the scope. In a condo building, riser shutoffs reach every unit on the stack, and the association plans them with the contractor. Express permit work on condominium property needs the association’s approval letter, so that conversation starts before the permit; see [riser replacement](https://chicagolakerepiping.com/riser-replacement/). ## When moving out for a few days makes sense Being away for the heaviest days can make sense for a family with an infant, for someone working from home in a room with open walls, or in a one-bathroom house on the day its only shower is cut over. That is a choice, not a requirement of the work. Ask which days carry the most openings and the longest water-off windows, and decide from there. ## Where to start List the fixtures that have to stay in use, the days that are hardest to be without water, and anyone else in the building who needs notice. Bring that to the first visit. Call the number on this page or use the estimate form to set up a walk-through; the [galvanized pipes guide](https://chicagolakerepiping.com/guide/galvanized-pipes-chicago-homes/) covers the bigger decision of what the repipe should include. ## Questions about this guide ### How long is the water off during a repipe? Only during the cutovers, when a section is switched from old pipe to new. The rest of the time the building runs on whatever piping is still connected. How many cutovers there are, and how long each lasts, depends on the building and the plan, and the quote should list the working days and the water-off windows before work starts. ### How can I keep dust down while my house is repiped? Ask the contractor before work starts how each opening will be protected and cleaned up, and which rooms are affected on which days. On your side, clear the walls listed for openings, move what you can out of those rooms, cover what you cannot, and keep the basement, the meter and the closets on the route clear. ### Do I need to warn the people renting my unit before a repipe shuts off the water? Plan the shutoff with the household renting your unit well ahead and check what notice your lease and the City's rental housing rules require. In a two-flat, the cutover of the shared basement main takes water from both units at once, so that window should be named in the quote and agreed with that household in advance. ## Related service ### Whole-house repiping Whole-house repiping replaces every hot and cold supply line from the main shutoff to the fixtures in the material the local code lists, then pressure tests it before the walls close. ## More guides - Learn [How are plaster walls opened and patched during a repipe?](https://chicagolakerepiping.com/guide/repiping-plaster-walls/)How new supply pipe gets through a lath-and-plaster house, where the openings go and why, and how to read the restoration lines on a repipe quote so nothing is left to assumption. - Learn [Do you need a permit to repipe a house in Chicago?](https://chicagolakerepiping.com/guide/chicago-repiping-permit/)What the Department of Buildings' Express permit covers when repiping a Chicago building, what pushes a job into plan review, the documents a riser or condo job needs, and what the suburbs do differently. - Cost Guide [What does it cost to repipe a Chicago two-flat?](https://chicagolakerepiping.com/guide/two-flat-repipe-cost-chicago/)The typical range for a whole two-flat, how the City's per-unit permit fees add up, why risers and the floor between units change the job, and what a two-flat quote should spell out. - Cost Guide [How much does it cost to repipe a house in Chicago?](https://chicagolakerepiping.com/guide/repiping-cost-chicago/)Typical ranges for a single-family house and a two-flat, what sits inside the price, the City's permit fees, and why two quotes for the same house can differ. - Learn [Galvanized pipes in Chicago homes: what to do about them](https://chicagolakerepiping.com/guide/galvanized-pipes-chicago-homes/)How to tell whether a Chicago bungalow, two-flat or greystone home still has galvanized steel supply pipe, what its symptoms do and do not prove, and how Chicago's code, permits and lead rules shape the fix.