Plumbers in Corsicana, Texas

Getting waste down through somebody else's ceiling

This is the whole project in one sentence. The building has drainage on the ground floor, serving a shop's restroom and a sink, and nothing upstairs. Every fixture you add upstairs has to reach that drainage, and the route runs through the tenant's space below.

So the first decision is where the stack goes, and it is decided from the bottom up rather than the top down. Find where the existing drainage runs and what it connects to, and place the upstairs bathrooms above that, even when the layout would rather they went somewhere else. Stacking bathrooms and kitchens over the existing line is what keeps a project affordable.

Where the stack has to pass through occupied commercial space, plan for boxing it in, for the noise it will make, and for the access panel that has to exist somewhere a shop owner will tolerate. A cast iron or heavy plastic stack is worth the extra cost here: somebody is going to be sitting underneath it.

Then confirm the building's lateral can take it. A line sized for one restroom and a mop sink is now serving four apartments, and the connection to the main may be older than anyone alive.

Old buildings hold one more surprise worth budgeting for: what is already in the floor. Cast iron stacks abandoned decades ago, capped lines from a restroom that was removed in the seventies, and occasionally a working drain nobody upstairs knew about. Opening the floor at the design stage, in one or two places rather than everywhere, turns those from mid-project discoveries into known quantities.

Venting, water and the things a 1910 building lacks

Venting is the second problem and it is often the more expensive one. Every new group of fixtures needs venting to atmosphere, which means getting a pipe to the roof through a building with no chase, or using an approved alternative where the layout genuinely will not allow it. This is not a corner to cut: an unvented upstairs bathroom gurgles, drains badly, and empties its traps into the room below's ceiling space.

Water is easier. A new supply riser to the upper floor is usually straightforward, though check what the building's service can deliver before assuming: an old half inch service feeding a shop will not run four apartments, and upsizing it means a new tap and a new meter, with fees and a timetable attached.

Hot water is a design decision worth making early. Individual small units in each apartment mean no shared cost and no arguments about who used it; a single central unit means one thing to maintain and a distribution problem. For four units or fewer, individual is usually simpler.

Fire protection, where it is required by the change of use, is a separate trade and a separate connection, and it has a habit of arriving late in the design. Ask early.

One more thing these buildings rarely have: a water heater location that makes sense. The obvious spots are all either in the apartment, where it takes floor space nobody has, or in a shared area, where a leak becomes everybody's problem. Wherever it lands, it needs a pan with a drain that goes somewhere visible, because a heater above a retail unit will eventually leak and you want to find out from a wet floor upstairs rather than from ruined stock below.

The business downstairs

Whoever is trading below is the constraint nobody puts in the budget. Work over their heads means dust, noise, and shutdowns that cost them money, and a shop with a lease has rights about that.

The way this goes well: agree the shutdown windows in writing before work starts, do the noisy and the messy in blocks rather than every other day, and keep the water on outside those windows even when that means temporary arrangements. A landlord who loses a ground floor tenant during an upstairs conversion has lost more than the plumbing cost.

Practical detail: protect the ceiling. Most of the damage claims in these projects come from a saw cut going further than intended or a temporary connection weeping overnight onto stock below. Cover it, and test every joint before leaving on a Friday.

There is also a long term point worth settling at the design stage. Once there are tenants upstairs, every future repair happens in an occupied building, so anything likely to need attention should be reachable without entering the shop. Valves for each apartment in a common area, cleanouts positioned outside the retail space, and an isolation point for the upstairs as a whole will save years of awkward conversations.

Metering deserves the same thought. Individual submeters for each apartment cost little while the walls are open and are almost impossible to add afterwards, and they settle the question of who pays for what before anyone has moved in.

Finally, agree who holds keys and who a tenant calls out of hours. During construction that is the contractor; afterwards it is the landlord or a manager, and the gap between those two arrangements is where a Saturday night leak turns into a claim because nobody could get into the building.

How we work on these

We start under the ground floor: find the existing drainage, camera the lateral out to the main, and establish the real service size. Those three facts decide the upstairs layout more than any drawing does, and they take a morning.

Then we work to a programme with the other trades, in blocks, with the ground floor's trading hours in the plan rather than as an afterthought. Where a building is being done in phases, which most of these are, we rough in for the later apartments while the floor is open rather than coming back to a finished ceiling.

Corsicana, Ennis, Kerens and Rice are all inside our area, and we are happy to look at a building before anyone commissions drawings.