# Repiping in East Austin: Holly and Govalle to Cherrywood and Windsor Park > Repiping in East Austin: galvanized pipe in older houses, slab houses on patches of expansive clay, and flagged service lines across 78702 to 78723. URL: https://gracklerepipingaustin.com/service-areas/east-austin/ ## What starts a repipe in East Austin Ticket A Two problems ### Rusty water and a warm spot on the floor An older slab house can have scaled galvanized branches and a leak under the slab at the same time. One plan should cover both. Ticket B Service line ### The meter in 78702 is flagged galvanized 78702 has 90 flagged service lines, third in Austin. The utility replaces the yard line; the inside pipe stays the owner's to plan. Ticket C Water or drain ### A neighbor's permit mentions tunnelling under the slab Most under-slab tunnelling in these ZIP codes is drain work. A supply leak is found and fixed differently, often without breaking the slab. Ticket D Old and new ### A 1940s house next to a new build Older houses here share streets with recent infill. The older house's pipe history, not the street's, decides the scope. ## Services in East Austin ### Galvanized pipe replacement Scaled, rusting galvanized steel supply pipe replaced with PEX or copper, with the restriction, rusty water and the service line sorted out first. Details → ### Whole-house repiping Every hot and cold supply line from the main shutoff to the fixtures replaced, permitted under Austin's plumbing code, pressure tested and patched. Details → ### Slab leak reroutes A leaking water line under the slab is confirmed, capped and abandoned, then replaced with a new line run overhead through the attic and down the walls. Details → ### Water line replacement The buried yard line from the meter to the house replaced by trench or bore, with a new customer valve, a permit and a pressure test before backfill. Details → ### PEX repiping A whole-house or partial repipe in PEX tubing, with the tubing type, fittings and layout chosen for the house and run to Austin's attic and pressure rules. Details → Two different reasons to replace supply pipe meet in East Austin. One is age: ZIP code 78722 has some of the oldest housing in Austin, with more than half its homes built before 1960. The other is ground: parts of 78702 and 78721 sit on Houston Black and Bergstrom clays, which shrink and swell under slabs. A house here can have both problems at once, and the plan has to account for that. [Grackle Repiping Austin](https://gracklerepipingaustin.com/) offers and manages repiping and slab-leak reroutes in Holly, Govalle, Rosewood, Cherrywood, French Place and Windsor Park, carried out by licensed and insured plumbing contractors with permits pulled by a City-registered responsible master plumber. The walk-through on an East Austin house checks for both problems before any scope is set. ## Four ZIP codes, four different starting points East Austin is not one housing story, and the four ZIP codes start from different places. The numbers below come from the Census Bureau’s American Community Survey, Austin Water’s service line inventory and City of Austin plumbing permits issued from October 2021 to October 2026. | | 78702 | 78721 | 78722 | 78723 | | --- | --- | --- | --- | --- | | Homes built before 1960 | 27.7% | 20.0% | 55.9% | 12.0% | | Homes built before 1970 | 33.6% | 41.5% | 62.4% | 36.8% | | Median year built | 2004 | 1985 | 1958 | 1983 | | Flagged galvanized service lines | 90 | 12 | 32 | 18 | | Water repipe and reroute permits | 12 | 6 | 4 | 18 | 78722, around Cherrywood and French Place, is the oldest. 78702, from Holly and Rosewood to Chestnut, has a large stock of prewar and postwar houses and a median year of 2004, which says how much new building has gone up beside them. 78721 sits between, with four in ten homes built before 1970, and 78723, which takes in Windsor Park, led East Austin in repipe and reroute permits. ## Galvanized pipe in the older houses Houses from the 1940s through the 1960s were commonly plumbed with galvanized steel. Where it has not been replaced, it scales from the inside until the smaller branches to showers and sinks pass far less water than they were sized for. Brown water after a shutoff and a toilet that takes a long time to refill are the usual first signs. In City plumbing permit descriptions, galvanized pipe is named 10 times in 78702, third in Austin after 78757 and 78703, and 6 times in 78723. The flagged service lines tell the same story from the yard. Austin Water’s inventory counts 152 meters in these four ZIP codes as galvanized requiring replacement, and the utility is replacing them from the meter to about five feet from the house. That work stops outside. If the pipe inside is galvanized too, a [galvanized pipe replacement](https://gracklerepipingaustin.com/galvanized-pipe-replacement/) or a [whole-house repipe](https://gracklerepipingaustin.com/whole-house-repiping/) is still the owner’s job, and it goes best when it is timed with the yard line so loosened scale does not clog new valves. The [water line replacement page](https://gracklerepipingaustin.com/water-line-replacement/) shows where the utility’s work ends. ## Clay under some slabs, not all The clay story in East Austin is patchy. Houston Black, the classic Blackland Prairie clay, cracks half an inch to four inches wide at a foot deep in dry periods, according to the federal soil survey, and swells again when it gets wet. A slab on that soil moves with the seasons, and copper or steel supply pipe where it passes through or under the slab takes that stress. Bergstrom and Houston Black are the main soils mapped at repipe permit locations in 78702 and 78721. Even so, 7 of the 10 permit locations in 78702 rate low for shrink-swell, and in 78723 only 1 of 18 sits on high shrink-swell soil. Corrosion, pinholes and pipe rubbing against concrete cause slab leaks on any soil. 78723 still stands out. It leads every Austin ZIP code in permit descriptions that mention slabs, with 110, a sign of how much slab work goes on there. Where a supply line under one of those slabs leaks, the usual local fix is the one City permits describe: abandon the leaking line in the slab and run a new one overhead through the attic. The [slab leak reroute page](https://gracklerepipingaustin.com/slab-leak-reroute/) explains how that works, and the [slab leak signs guide](https://gracklerepipingaustin.com/guide/slab-leak-signs/) covers what to watch for. ## Water pipe or drain pipe under the floor 78723 also leads the city in permit mentions of tunnelling, with 453. In permit descriptions that word refers to drain work: a tunnel is dug under the slab to reach cast iron or plastic waste pipe. A water supply leak is a different problem. Supply lines carry pressure, so a leak shows up as a running meter, a warm floor or a hissing sound, and the fix rarely opens the slab. Keeping the two straight matters when comparing estimates, because a sewer or drain repair is a separate trade job from a repipe. The guide on [whether repiping includes drain pipes](https://gracklerepipingaustin.com/guide/does-repiping-include-drain-pipes/) draws that line. ## Old houses beside new ones Where a 1940s cottage stands next to a new two-story build, the newer house tells you nothing about the older one’s pipe. Older houses here may have been partly updated over the years, leaving galvanized trunk lines with copper or plastic branches, so the material gets checked at several points: at the main shutoff, at the water heater and at a fixture or two. Where a house sits on piers, as in parts of 78722 and 78702, new lines can run under the floor. City permits mention pier-and-beam or crawlspaces 22 times in 78722 and 15 times in 78702. The [guide to identifying your pipes](https://gracklerepipingaustin.com/guide/what-kind-of-pipes-do-i-have/) is a good first step. ## The insurance question Homeowners east of I-35 report worry about under-slab plumbing and whether their policy covers it. Coverage depends on the policy. Insurers may pay to open the floor and for resulting water damage while excluding the pipe itself, and wear and tear is a common exclusion. The [slab leak insurance guide](https://gracklerepipingaustin.com/guide/slab-leak-insurance-texas/) explains how to read a policy before a claim. ## From walk-through to inspection On an East Austin house the walk-through answers two questions at once: what the supply pipe is made of, and whether anything is leaking under the floor. It also takes a static pressure reading from a hose bib, sizes up the attic or the crawlspace and picks the walls that can be opened. Permit, pressure test and wall patching are priced as separate items, which the [repipe cost guide](https://gracklerepipingaustin.com/guide/repipe-cost-austin/) breaks down. Each evening the water is turned back on. Walls stay open until the new lines pass a pressure test and the City inspector signs off; old pipe within reach is pulled, and anything buried in walls or slab is sealed off and left. ## Across I-35 and the river West of I-35, [North Central Austin](https://gracklerepipingaustin.com/service-areas/north-central-austin/) shares the galvanized history on firmer soil. Across the river, [South Central Austin](https://gracklerepipingaustin.com/service-areas/south-central-austin/) has the most flagged service lines in the city and a pressure-zone project near Oltorf. In [Northwest Austin](https://gracklerepipingaustin.com/service-areas/northwest-austin/), slab leaks happen on limestone rather than clay. ## Neighborhoods and coverage - Holly - Govalle - Rosewood - Chestnut - Cherrywood - French Place - Windsor Park - Johnston Terrace ### Landmarks - Huston-Tillotson University - French Legation Museum - Texas State Cemetery - Boggy Creek Greenbelt - Mueller Lake Park ### Routes - I-35 - East Cesar Chavez Street - East 7th Street - East 12th Street - Martin Luther King Jr. Boulevard - Manor Road - Airport Boulevard - Springdale Road 1. 1. Cedar Park 2. 2. East Austin 3. 3. Georgetown 4. 4. Kyle 5. 5. North Central Austin 6. 6. Northwest Austin 7. 7. Round Rock 8. 8. South Austin 9. 9. South Central Austin ## East Austin questions ### How much does a repipe cost in East Austin? A typical Austin-area range for a whole-house repipe is $4,500 to $15,000+, and about $4,500 to $9,000 for PEX with typical access. A slab leak reroute runs about $4,000 to $9,750 before leak detection. A small one-story house with a reachable attic or crawlspace sits lower; a second story, tile and a regulator with an expansion tank push it up. ### Are slab leaks more likely east of I-35? Some East Austin houses sit on Houston Black and Bergstrom clays, which shrink and swell with moisture and can stress pipe where it passes through a slab. Many permit locations here are on low shrink-swell soil, though, and corrosion and wear cause slab leaks on any soil. The soil is context, not a diagnosis for one house. ### My East Austin house has galvanized pipe and a slab leak. Should I fix both at once? It usually makes sense to plan them together. Rerouting one slab line overhead leaves scaled galvanized branches that will keep closing up, and a whole-house repipe through the attic or crawlspace can replace both at once. The estimate can price the reroute alone and the full repipe side by side. ### Is under-slab tunnelling for a drain the same job as a water reroute? No. Tunnelling under a slab is mostly done to reach cast iron or plastic drain pipe. A leaking water supply line under the slab is usually abandoned in place and replaced by a new line run through the attic or walls, so the slab is not opened at all. ### Does a new infill house in 78702 need repiping? Age alone is not a reason. Recent houses were plumbed under modern codes, typically with PEX. A newer house gets a repipe conversation only when something specific shows up, such as a failed fitting type, repeated leaks or a slab leak, and the scope then follows that problem. ## Related guides - Learn [What are the signs of a slab leak?](https://gracklerepipingaustin.com/guide/slab-leak-signs/)How a leaking water line under a slab shows itself, the meter check that confirms water is going somewhere, and what the signs can and cannot tell you about the cause. - Learn [Does repiping include drain pipes?](https://gracklerepipingaustin.com/guide/does-repiping-include-drain-pipes/)No. A repipe replaces the pressurized water supply lines, and drains, vents and the sewer line are a separate system with separate failures. This guide shows where the line falls, how to tell which system is leaking under a slab, and where the line from the meter fits. - Decision Guide [Is a slab leak covered by homeowners insurance in Texas?](https://gracklerepipingaustin.com/guide/slab-leak-insurance-texas/)Coverage depends on your policy. This guide explains how a slab leak claim splits into the pipe, the tear-out and the damage, what the Texas Department of Insurance says, and what to have ready before you call your insurer. - Learn [What kind of pipes does my house have?](https://gracklerepipingaustin.com/guide/what-kind-of-pipes-do-i-have/)You can identify most water pipe yourself in a few minutes by looking where it shows: the water heater, the main shutoff, under sinks and in the attic or crawlspace. This guide shows what each material looks like, what its age suggests and what each one tends to need. - Cost Guide [How much does a repipe cost in Austin?](https://gracklerepipingaustin.com/guide/repipe-cost-austin/)What a whole-house repipe typically costs in the Austin area, what sits inside that price, and the handful of things that move one house from the low end to the high end. ## Nearby service areas - [North Central Austin](https://gracklerepipingaustin.com/service-areas/north-central-austin/)Postwar galvanized lines; Austin Water replaces flagged galvanized service lines - [South Central Austin](https://gracklerepipingaustin.com/service-areas/south-central-austin/)Most flagged galvanized service lines in Austin; a utility pressure-zone project near Oltorf - [Northwest Austin](https://gracklerepipingaustin.com/service-areas/northwest-austin/)Slab leaks on limestone, not clay; rock pushes fixes overhead and pressure runs high