Johnston Plumbing company — IA
Repair, installation, replacement — licensed plumbers cover the full plumbing range across Polk County, and every Johnston visit starts with a flat-rate quote in writing and ends under a 10-year workmanship guarantee. Homes here sit in Iowa's continental-climate region, where freeze-thaw cycles that crack pipe and split fittings and deep winter cold that freezes exposed and uninsulated supply lines do the real damage — so we spec pipe and fittings for it. CSLB #1098234, family-owned since 1974 — and stocked trucks mean most jobs finish in a single visit.

What we do in Johnston, IA: every plumbing service, done right.
Plumbing Repair in Johnston, IA
Everything under plumbing repair in Johnston, IA is handled by the same licensed local crew — start with the complete Plumbing Repair guide for symptoms and costs, or jump straight to the specific job below. Every visit is quoted flat-rate before work starts.
Plumbing Repair
Leaks, running toilets, worn valves & fixtures — one truck, one visit.
Johnston, IA plumbing repair, Polk County-wide: written flat-rate quotes.
Learn moreDrain Cleaning
Slow or clogged drain? Fast, no-dig clearing.
Drain Cleaning across Johnston, IA and Polk County — priced flat, in writing.
Learn morePipe Replacement
Corroded, leaking, or undersized runs — replaced clean.
Serving Johnston, IA and Polk County with pipe replacement at a written flat rate.
Learn moreEmergency Plumbing
Flooding, no water, or an overflow? Rapid response in under 90 minutes.
Emergency Plumbing for Johnston, IA homes across Polk County — flat-rate, quoted in writing.
Learn morePipe Repair
Pinhole, split, or leaking joint? Fixed without a full repipe.
Pipe Repair across Johnston, IA and Polk County — priced flat, in writing.
Learn moreLeak Detection
Hidden leak driving up your bill? We find it without demolition.
Local leak detection in Johnston, IA (all of Polk County), flat-rate and in writing.
Learn moreSewer Line Repair
Cracked, root-choked, or collapsed main line? Repaired — often no-dig.
Sewer Line Repair for Johnston, IA homes across Polk County — flat-rate, quoted in writing.
Learn moreFixture Installation
New faucet, sink, toilet, or shower fixture set right and sealed.
Fixture Installation for Johnston, IA homes across Polk County — flat-rate, quoted in writing.
Learn moreGarbage Disposal
Humming, jammed, or leaking disposal? Repaired or replaced today.
Serving Johnston, IA and Polk County with garbage disposal at a written flat rate.
Learn moreBurst Pipe Repair
Pipe burst and flooding? Water stopped and repaired fast.
Burst Pipe Repair across Johnston, IA and Polk County — priced flat, in writing.
Learn moreSewer Backup & Drain
Sewage backing up into the house? Emergency clearing now.
Serving Johnston, IA and Polk County with sewer backup & drain at a written flat rate.
Learn morePlumbing Installation across Johnston, IA
Everything under plumbing installation in Johnston, IA is handled by the same licensed local crew — start with the complete Plumbing Installation guide for symptoms and costs, or jump straight to the specific job below. Every visit is quoted flat-rate before work starts.
Plumbing Installation
Full-service install for fixtures, lines & appliances.
Flat-rate plumbing installation for Johnston, IA and the wider Polk County, quoted in writing first.
Learn moreRepiping
Whole-home repipe in PEX or copper — from quote to finished.
Local repiping in Johnston, IA (all of Polk County), flat-rate and in writing.
Learn moreCommercial Plumbing
Restaurants, retail, offices & multi-unit — code-compliant, low-downtime.
Serving Johnston, IA and Polk County with commercial plumbing at a written flat rate.
Learn moreResidential Plumbing
Your whole-home plumbing team — leaks, clogs, fixtures & more.
Local residential plumbing in Johnston, IA (all of Polk County), flat-rate and in writing.
Learn moreBathroom Plumbing
Remodel rough-in — move fixtures, set valves, run supply & drain.
Serving Johnston, IA and Polk County with bathroom plumbing at a written flat rate.
Learn moreWater Filtration
Cleaner, better-tasting water — whole-house filters, softeners & RO.
Water Filtration across Johnston, IA and Polk County — priced flat, in writing.
Learn moreWater Heater Services across Johnston, IA
Everything under water heater services in Johnston, IA is handled by the same licensed local crew — start with the complete Water Heater Repair guide for symptoms and costs, or jump straight to the specific job below. Every visit is quoted flat-rate before work starts.
Water Heater Repair
No hot water? Pilot, element, thermostat — fixed today.
Water Heater Repair across Johnston, IA and Polk County — priced flat, in writing.
Learn moreWater Heater Installation
New installs, upgrades & tankless conversions — sized & vented to code.
Flat-rate water heater installation for Johnston, IA and the wider Polk County, quoted in writing first.
Learn moreSmart Plumbing Controls
Automatic shutoff valves and app control that stop a leak fast.
Smart Plumbing Controls across Johnston, IA and Polk County — priced flat, in writing.
Learn moreLeak Sensor Installation
Point sensors under sinks, heaters & washers that catch a leak early.
Johnston, IA leak sensor installation, Polk County-wide: written flat-rate quotes.
Learn moreWater Heater Replacement
Old or failed heater swapped for a new one — sized right, hauled away.
Local water heater replacement in Johnston, IA (all of Polk County), flat-rate and in writing.
Learn moreFaucet Repair
Dripping, stiff, or leaking faucet? Fixed at the cartridge.
Johnston, IA faucet repair, Polk County-wide: written flat-rate quotes.
Learn moreSmart Water Systems
Whole-home water intelligence — monitor, soften, filter & protect.
Serving Johnston, IA and Polk County with smart water systems at a written flat rate.
Learn moreTankless Water Heater
Endless hot water, half the space — Navien, Rinnai & Rheem.
Tankless Water Heater for Johnston, IA homes across Polk County — flat-rate, quoted in writing.
Learn moreBoiler Repair
Cold radiators, kettling, or lockout codes — hydronic heat restored.
Flat-rate boiler repair for Johnston, IA and the wider Polk County, quoted in writing first.
Learn moreJohnston, IA: Plumbing Maintenance
Everything under plumbing maintenance in Johnston, IA is handled by the same licensed local crew — start with the complete Plumbing Maintenance guide for symptoms and costs, or jump straight to the specific job below. Every visit is quoted flat-rate before work starts.
Plumbing Maintenance
Preventive maintenance plans that pay for themselves.
Johnston, IA plumbing maintenance, Polk County-wide: written flat-rate quotes.
Learn morePlumbing Inspection
23-point whole-home plumbing safety inspection.
Flat-rate plumbing inspection for Johnston, IA and the wider Polk County, quoted in writing first.
Learn moreSeal & Gasket Repair
Leaks at the toilet base, tank, or under-sink seals — resealed.
Johnston, IA seal & gasket repair, Polk County-wide: written flat-rate quotes.
Learn moreWater Pressure Repair
Weak showers or banging pipes? Pressure diagnosed and fixed.
Water Pressure Repair across Johnston, IA and Polk County — priced flat, in writing.
Learn morePressure Regulator Service
PRV worn out or missing? Set your pressure to a safe range.
Pressure Regulator Service across Johnston, IA and Polk County — priced flat, in writing.
Learn moreToilet Repair
Running, clogged, or leaking toilet? Fixed at the source.
Local toilet repair in Johnston, IA (all of Polk County), flat-rate and in writing.
Learn moreBackflow Prevention
Certified backflow testing and assembly install to protect your water.
Johnston, IA backflow prevention, Polk County-wide: written flat-rate quotes.
Learn moreSump Pump Service
Keep the basement dry — pump install, repair & battery backup.
Serving Johnston, IA and Polk County with sump pump service at a written flat rate.
Learn moreJohnston: leaks fixed, systems installed, done right.
Johnston installs and repairs run on one rule — a free on-site quote and a written flat rate, with no add-ons after, anywhere in Polk County. Same-day finishes are the norm for water heaters and repipes, the old equipment leaves with us, and so does the mess.
- Free quote within 24 hours
- Workmanship guaranteed for 10 years
- Lifetime warranties on water heaters & fixtures
- Financing as low as $39/mo

Johnston, IA: plumbing repair, installation & water heater service
Our coverage map centers on Johnston and extends through Polk County, working Hyperion, Winwood, and Green Meadows West. Polk County, Iowa, takes in Johnston and the communities around it. Homes here sit in Iowa's continental-climate region, and we tailor every job to it. Whatever the job, it runs from a stocked truck at a written flat rate, with a 10-year workmanship guarantee behind it.
Johnston sits in Iowa's continental-climate region, which brings a humid continental climate — hot, humid summers and cold, snowy winters, with sharp freeze-thaw swings between seasons. The plumbing consequences are freeze-thaw cycles that crack pipe and split fittings, deep winter cold that freezes exposed and uninsulated supply lines, and summer heat and humidity that strain water heaters and sweat pipes, so pipe, fittings, and equipment all get specced corrosion- and freeze-rated for these conditions.
In Johnston, the repair calls that come in most are for corroded service lines from road salt and groundwater, running toilets and worn fill valves, and frozen exterior spigots and hose bibs. The causes are local: 144 days below freezing a year freeze and split supply lines and outdoor spigots, 38 inches of snow and a long frost season keep buried lines cold enough to crack at the joints, and 59% are detached houses with their own service lateral, water heater, and outdoor spigots to maintain. That's the wear our Johnston trucks are stocked against, one-visit fixes included.
Polk County, Iowa, takes in Johnston and the communities around it. Wherever you sit between Johnston and the rest of Polk County, the treatment is identical: short dispatch, flat-rate quotes in writing, and a 10-year guarantee on workmanship.
NOAA's 1991–2020 normals put Iowa at 38 inches of snow and 144 days below freezing a year — real weather load we plan for when we size, insulate, and protect Johnston plumbing.
In Johnston, Census figures show 10% of homes built before 1980 (median build year 2003). Plumbing that old is usually well past its service life — original galvanized or polybutylene supply pipe, corroded fittings, and long-in-the-tooth water heaters — so we plan for age-related wear, not just the fault you called about. 59% of Johnston homes are detached single-family houses (median value ~$332k) — the housing type most likely to have its own water heater, service lateral, and outdoor spigots to maintain.
For Johnston homes in Iowa's continental-climate region, prevention comes down to a short list: insulate exposed supply lines and disconnect garden hoses before winter — 144 freezing days a year can freeze and split unprotected pipe; keep outdoor spigots and any exposed pipe runs clear of snow and ice so they can't freeze solid (38 inches fall here in a normal year); newer homes — the 27% of local homes built since 2010 — mainly need an annual water heater flush and a quick check of shut-off valves and supply lines while everything's still under warranty; and run an annual water heater flush and shut-off-valve check on a detached home with its own service lateral.
Service doesn't stop at the Johnston line — nearby Grimes, Urbandale, Saylorville, and Windsor Heights get the same crews and flat-rate pricing, across Polk County. Locally, that means Hyperion, Winwood, Green Meadows West, Sheldahl Heights, and Waterford and the streets between them. On the ZIP grid: 50131.
"plumbing company near me" — the Johnston answer
Searching "plumbing company near me" from Johnston? You've found a genuinely local option, working Hyperion, Winwood, and Green Meadows West every day — the tech who shows up actually knows your area, not a national call center routing the job out of Polk County.
Plumbing service costs in Johnston, explained
Johnston pricing is simple — flat-rate, written, quoted up front: a service call starts at $49, clearing a blocked drain from $99, hot-water service from $189, and renewing a home's piping from $1,499. Local homes run a median value near $332k, but a plumbing quote tracks the fixture and the pipe — never the neighborhood. Seniors (65+) and military get 10% off labor, and financing covers jobs over $1,500 at 0% APR for 12 months.
Johnston is part of our greater Des Moines, IA metro service area.
FAQs from Johnston homeowners
Do you cover the whole Polk County area, not just Johnston?
How does the climate in Johnston, IA affect my plumbing?
Which Johnston neighborhoods and ZIP codes do you serve?
More answers on our FAQ page.
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