Friendswood lives with water in a way most suburbs never think about. Between the bayous, the Gulf Coast storms, and the low-lying streets near Clear Creek, plumbing here has to handle both the everyday and the deluge. Plumbing Pros keeps Friendswood homes dry, draining, and running across the 77546.

Content last reviewed September 30, 2026

Need a plumber in Friendswood? Plumbing Pros handles sump pumps, backwater valves, heaters and leaks across the 77546. Call (877) 401-2673 today.

Plumbing where the water table is always near

Friendswood began as a Quaker settlement and grew into a Gulf Coast suburb straddling Galveston and Harris counties, southeast of Houston. The neighborhoods run from 1970s and 1980s ranch homes along Friendswood Drive to newer master-planned communities like West Ranch. It is a handsome, established city, and it sits in some of the flattest, wettest country in Texas.

The defining local fact for a plumber is the flooding. Hurricane Harvey put water in thousands of Friendswood homes, and the city's own drainage studies counted more than 2,500 of them. The gauge on Mary's Creek near North Friendswood Drive measured rainfall totals that rewrote the record books. Homeowners here think about water the way hill-country homeowners think about fire: as a when, not an if.

That shapes the work. Sump pumps in low-lying homes, backwater valves where the sewer can push back during a storm, water heaters raised off garage floors, and post-flood sanitation of anything the water touched. Plumbing Pros installs and services all of it, and we know which streets near Clear Creek, FM 2351, and Whispering Pines need the full protection package.

Day to day, Friendswood's water comes from two directions. The city buys treated surface water from Houston, drawn from Lake Livingston and the Trinity River, and it also pumps from six deep wells into the Gulf Coast Aquifer. The city's own consumer report measured total hardness around 141 parts per million, which is moderately hard: enough to scale heaters and spot fixtures over time.

Under the lawns is Gulf Coast gumbo clay, which shifts with the seasons and moves slabs and buried lines. The housing stock adds its own age: 1970s and 80s homes with cast-iron drains and galvanized branches, sitting beside new builds with PEX and modern fixtures. Whatever era your house belongs to, call (877) 401-2673 and Plumbing Pros will diagnose it properly.

The flood-season plumbers

Storm protection and everyday plumbing for Friendswood

Most plumbers meet you at the leak. In Friendswood we meet a lot of homeowners at the weather forecast. Plumbing Pros crews here split their time between storm protection, sump pumps, backwater valves, raised heaters, flood cleanup plumbing, and the ordinary work of leaks, drains, and repipes. We carry battery-backup sump systems, backwater valve assemblies, and the camera and listening gear for slab work on every truck. When the sky turns dark over Clear Creek, our customers already know their pump will run and their sewer cannot push back. That confidence is the product; the plumbing is how we deliver it.

  • Flood-protection specialty: sump pumps, battery backups, and backwater valves sized for this watershed.
  • Post-storm recovery: sanitizing, heater replacement, and sewer restoration after floodwater recedes.
  • Evidence-first diagnosis: cameras and acoustic listening precede any demolition work.
  • Written options and firm prices: you approve the plan and the number before work begins.
  • Gumbo-clay fluency: slab leaks and shifted sewer lines diagnosed for local soil movement.
  • Clean, documented work: photos and readings you keep, work areas left tidy.

What Friendswood gets from Plumbing Pros

Seven reasons, tested in storm season

  • Storm-season readiness: we inspect and test sump pumps and backwater valves before the Gulf weather turns, not after it floods.
  • Right-sized sump systems: pump capacity matched to your home's low points, with battery backup that carries through an outage.
  • Backwater valve expertise: installed where the municipal sewer can reverse in a storm, protecting the whole house from one device.
  • Flood-damage triage: fast, honest assessments of what floodwater ruined and what can be sanitized and saved.
  • Documented drain inspections: a camera goes down on repeat backups, and you watch the footage before any quote.
  • Heater placement smarts: replacements sited and elevated with local flood history in mind, not just code minimums.
  • Straightforward scheduling: real arrival windows, text confirmations, and emergency dispatch when water is winning.

Friendswood's familiar plumbing troubles

Sewer lines that reverse in big storms

In a big Gulf rain event, the municipal sewer system can surcharge, and sewage pushes back toward the house through the lateral. The lowest drain, usually a shower or floor drain, is where it appears. A backwater valve on the main lateral stops that reversal cold: it lets wastewater out and slams shut against anything coming back. We install them with accessible cleanouts and test them yearly, because a valve nobody maintains is a valve that fails silently. For homes near Clear Creek and the low streets off FM 2351, it is the single most valuable device we install.

Sump pumps that quit at the worst moment

Homes in Friendswood's low pockets depend on sump pumps to keep groundwater and seepage out of living space. The failure pattern is always the same: a float switch sticks, the pump burns out quietly, or the power dies in the same storm that fills the pit. We install primary pumps with battery or water-powered backups, alarms that text you when the water rises, and check valves that actually hold. Annual testing before storm season is cheap insurance; call (877) 401-2673 and we will put your system on that schedule.

Water heaters drowned by floodwater

Garage and ground-floor water heaters are the first casualties when water comes in. Floodwater ruins gas valves, control boards, and burners, and a heater that sat in water is never trustworthy again, even if it relights. After a flood we assess fast: what must be replaced, what can be sanitized, and how to site the new unit higher and safer. We also strap and elevate replacements with the local flood history in mind, so the next storm does not claim the new heater the same way.

Cast-iron drains in the 70s and 80s stock

The ranch homes along Friendswood Drive and the older sections carry cast-iron drain lines that are now forty to fifty years old. Decades of flow have left the interiors flaking and narrowed, while the clay laterals outside offer roots an opening at every joint. The symptoms are the classics: gurgling toilets, slow tubs, backups that return to the same cleanout. We camera the line, mark depths and defect points, and quote only the failing section. Most of these homes call for a single focused repair rather than a yard-wide replacement.

Moderate hard water, long-term scale

At around 141 parts per million of hardness, Friendswood's water is not the hardest in Texas, but it is hard enough. Over a decade it crusts showerheads and cartridges, bakes sediment into water heater tanks, and films dishwasher interiors. The heater works longer for the same hot shower and gives up sooner. We descale fixtures, flush tanks, keep anode rods fresh, and where a tap test justifies it, size a softener properly. Small maintenance, big added years.

Slab leaks where the gumbo clay moves

Gulf Coast gumbo clay swells in the wet months and shrinks in the dry ones, and slab foundations ride that cycle. Water lines under the slab crack or pull at fittings as the concrete moves. The tells: a warm spot on the floor, a meter spinning with everything off, water sounds in a quiet house, a bill climbing for no reason. We locate the break with acoustic listening and pressure isolation, then lay out the options: spot repair, overhead reroute, or tunneling from outside. The trade-offs go on paper and you choose.

Galvanized branches in the oldest homes

The earliest Friendswood homes still carry some galvanized steel supply branches. Galvanized pipe rusts from the inside, so pressure fades fixture by fixture and the water runs rusty at first draw. It also sheds rust flakes that clog cartridges and heater inlets. When the rust shows, the pipe is telling you its remaining life. We repipe in PEX, section by section or whole-house, with new shutoffs at every fixture so the next repair is simple.

How we handle a Friendswood call

  1. You tell us the story: The backup, the dead pump, the warm floor, the flood damage: describe what happened and when. Reach us at (877) 401-2673 and we will work through the scoping questions before the truck rolls.
  2. We look with instruments: Cameras in the drains, listening gear on the slab, gauges on the pressure, eyes on the sump pit and the backwater valve. We pin down the failure and its cause, then show you the evidence.
  3. You approve the plan: Written options, firm prices, ranked by durability. You pick one and approve it before we begin. If the honest answer is a different trade or an insurance claim, we say so.
  4. We do the work clean: Floor protection down, water shut off and tagged, old equipment hauled away. Afterward we test everything: pump cycles, valve function, pressure, flow, drainage. You see it all working.
  5. We set the rhythm: Sump tests before storm season, backwater valve checks yearly, heater flushes on schedule. We put your home on a maintenance rhythm so the next storm is boring.

Our Friendswood service area

We run daily routes through the 77546 and 77549, from the neighborhoods along Friendswood Drive and FM 528 to West Ranch, Blackhawk, Whispering Pines, and the streets near Clear Creek and Mary's Creek. Flood-prone or high and dry, every home gets the same discipline: instruments first, written options, a firm price before work begins. Most in-city calls land on same-day or next-day slots, and storm-season emergencies get priority dispatch around the clock. We cover Lake Crossing, Autumn Creek, and the new streets going up along FM 528 with the same routines as the oldest blocks near Friendswood Drive. If your address carries a Friendswood mailing address but sits outside the city line, in the unincorporated stretches between Friendswood, Pearland, and League City, call and ask. One short call to the dispatcher settles it in most cases, and many of those addresses fall inside our daily routes. Don't see your ZIP code? Call (877) 401-2673: we will confirm whether your Galveston County street sits inside our Friendswood routes.

Zip Codes We Serve in Friendswood

77546, 77549

Testimonials

After the last big storm pushed sewage into our shower, they installed a backwater valve and a new sump system with battery backup. The next storm rolled through and the house stayed bone-dry. Worth every penny.
Homeowner near Clear Creek
Our water heater sat in floodwater and two companies said to just relight it. Plumbing Pros showed us why that was unsafe, replaced it, and raised the new one. Honest work, clean install.
West Ranch resident
Cast-iron drains from the seventies, backing up every few months. They camera'd the line, fixed the one bad section, and it has been two years without a gurgle. The invoice landed exactly where the written quote said it would.
Friendswood Drive homeowner

Frequently Asked Questions

Should I install a backwater valve on my Friendswood home?

If your street has ever seen the sewer surcharge in a big storm, yes. A backwater valve on the main lateral lets wastewater flow out and slams shut against anything pushing back in, which is exactly what happens when the municipal system overloads. It protects every drain in the house from one device. We install them with accessible cleanouts and test them yearly. Call (877) 401-2673 and we will tell you honestly whether your street's history justifies one.

My sump pump runs all the time. Is that normal?

In Friendswood's low pockets during wet weather, frequent cycling can be normal, but constant running deserves a look. It can mean a stuck float switch, a failed check valve letting water fall back into the pit, or groundwater overwhelming an undersized pump. We test the full system: pump, switch, check valve, discharge line, and backup. A pump that runs nonstop is a pump heading for burnout, so call before it quits in the next storm.

Is Friendswood's water hard?

Moderately. Friendswood blends purchased Houston surface water with its own deep Gulf Coast Aquifer wells, and the blend lands in the moderately-hard range. That is enough to scale water heaters, crust fixtures, and film dishwashers over the years, though it is gentler than the very hard well water in some surrounding areas. One test at your tap settles the exact number, and we set softener sizing and anode schedules from it.

What should I do about plumbing after a flood?

Do not relight a water heater that sat in floodwater, and do not assume drains are fine because they look clear. Floodwater contaminates everything it touches and ruins gas valves, control boards, and water heater burners. We triage fast: sanitize what can be saved, replace what cannot, and document everything for insurance. Call (877) 401-2673 before you turn things back on; the order matters for both safety and your claim.

My ranch from the seventies still has its original cast-iron drains. Now what?

Not necessarily all at once. Cast iron at forty-plus years is living on borrowed time, but a camera inspection shows whether yours is flaking shut or still serviceable. We mark the defect points with depths and quote the failing sections. Many Friendswood ranches need one targeted repair and a maintenance plan, not a whole-house drain replacement. The footage is yours to keep either way.

Some days my water smells strongly of chlorine. Why?

That is the disinfectant. Friendswood's water carries a chlorine or chloramine residual from treatment, and the smell is stronger when the system adjusts dosing, often in warm weather. It is not a sign of contamination, but heavy chloramine does wear out rubber toilet flappers and washer hoses faster. If the smell is strong enough to bother you, a whole-house carbon filter takes it out. If your toilet parts keep failing young, that is the same chemistry at work.

Can a slab leak wait until after storm season?

It should not. A slab leak is pressurized water escaping under your foundation every minute, and waiting lets it erode soil, heave the slab, and grow mold. Storm season only makes access harder. We locate the break with acoustic listening, often the same day you call, and lay out spot repair, reroute, or tunneling. The longer it runs, the bigger the repair.

Do you offer emergency plumbing service in Friendswood?

Yes, around the clock. Sewer backups in a storm, dead sump pumps with water rising, burst pipes, and flood-damaged heaters get priority dispatch anywhere in the 77546 or 77549. Day or night, (877) 401-2673 reaches a dispatcher who will give you a straight arrival window. If water is rising inside, shut the main valve and move valuables upstairs; we will talk you through it by phone.

Which ZIP codes do you cover in Friendswood?

The 77546 and the 77549 are our daily routes. If your street carries a Friendswood mailing address but sits in unincorporated Galveston or Harris County, call (877) 401-2673: the dispatcher checks your street against our routes and answers straight away, and most such addresses fall inside. Neighborhoods between Friendswood, Pearland, and League City are in the gray zone we confirm most often.

Local Weather Risk

Galveston County has recorded the following severe weather events since 2015, per NOAA's National Centers for Environmental Information:

  • Flash Flood: 50 recorded events (2015–2024)
  • Thunderstorm Wind: 49 recorded events (2015–2025)
  • Hail: 19 recorded events (2015–2024)
  • Tornado: 12 recorded events (2015–2024)
  • Flood: 1 recorded event (2025–2025)

Source: NOAA NCEI Storm Events Database.

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