Plumbers in Denton, TX

Three housing stocks, three different answers

Denton is unusual for North Texas in how wide its range of building ages is, and it means the first useful question about any plumbing problem here is how old the house is.

Around the Square and through the Oak-Hickory and Bell Avenue districts there are houses built before the First World War. Some still carry galvanised supply pipe and cast iron or clay drainage in part, and their problems are the problems of pipework that has been in service for a century.

Spreading out from there is a large mid-century and later stock, mostly slab-on-grade, where the issues are the familiar North Texas ones: clay movement, slab leaks on hot-side copper, and drainage now several decades old.

On the edges, construction is still going on, with PEX and PVC and nothing yet worn out except, increasingly, the water heaters.

Same city, three completely different failure lists.

The pressure problem with no leak

In the oldest Denton houses there is a complaint that comes up repeatedly and confuses people, because nothing appears to be wrong.

The showers have got weaker over the years. Running a tap in the kitchen kills the pressure in the bathroom. Nothing is leaking, nothing has broken, and no plumber has found a fault.

That is galvanised steel supply pipe reaching the end of its life. It corrodes from the inside, and the corrosion builds as a thickening, rough layer that gradually closes the bore. An original half-inch pipe ends up passing a fraction of what it should.

From outside it looks perfectly sound, which is exactly why it goes undiagnosed. And no repair improves it, because there is nothing broken to repair. Replacing the affected runs is the only thing that restores flow.

A rental city, and what that does to plumbing

With two universities, a large share of Denton housing is rented, and the plumbing profile reflects it.

Shared houses use fixtures harder than families do. Disposals meet things that should not have gone in. Wipes and other non-flushables reach laterals that were never designed for them. And small problems, a slow drain, a running toilet, a weeping valve, tend to go unreported by tenants until they become large problems for the owner.

For landlords, the gap between tenancies is the cheapest hour in the year. Exercising and replacing seized shutoff valves means the next repair does not require turning off the whole house. Replacing ageing braided supply connectors removes the most likely cause of a flood in an empty property. Flushing the water heater and noting its age turns a future emergency into a planned replacement.

None of it is expensive. All of it is much cheaper than the call it prevents.

The soil is not the same across town

One thing that catches Denton homeowners out is that foundation experience varies enormously between neighbourhoods, and there is a reason.

Denton sits near the transition between the heavy Blackland Prairie clays to the east and the sandier Cross Timbers soils to the west. Clay swells and shrinks with the seasons and moves slabs. Sandier soil does far less of it.

So a homeowner on the clay side watering a foundation through August, and a homeowner a few miles west who has never thought about it, can both be doing the right thing.

It also means slab leak risk is not uniform here. If your part of the city sits on the heavy clay, a meter that turns with everything off deserves attention sooner rather than later.