King County
Plumber in Redmond, WA
Redmond's housing is young: the median home dates to 1993 (Census ACS 2024 five-year estimates), 40 percent of its 35,104 units were built in 2000 or later, 34 percent from 1980 to 1999, and only 26 percent before 1980.
Key facts
- Serving
- Redmond, WA
- ZIP codes
- 98052, 98053
- From our shop
- About 20 driving miles from Monroe
- Water
- City of Redmond (its own wells plus Tolt water bought through the Cascade Water Alliance). Depends on the side of town: groundwater about 90 mg/L (6 grains per gallon), moderately hard; Tolt water about 20 mg/L (1.2 grains per gallon), soft (City of Redmond figures)
- Estimates
- Free, upfront flat-rate pricing
- Emergencies
- 24/7 at (425) 845-3535
Plumbing in Redmond
Redmond runs a hybrid water system. About 40 percent comes from city wells tapping a shallow aquifer, 5 to 15 feet below ground, under Downtown, Avondale Road and Southeast Redmond; the rest is Tolt River water bought through the Cascade Water Alliance. Homes east of Lake Sammamish and the Sammamish River generally get well water, sometimes blended with Tolt, while the west side, Redmond Ridge and Trilogy get Tolt water.
Each source is treated to protect household plumbing. The Tolt supply gets calcium oxide and carbon dioxide to temper its natural corrosiveness, and Redmond's wells run through aeration towers that raise the groundwater's pH from about 6.5 into the 7.5 to 7.8 range, corrosion control the city has used since 1983. The city's October 2024 inventory found no lead service lines, and 100 pressure-reducing valve stations help keep pressure steady at the tap.
Neighborhoods we serve
Downtown Overlake Education Hill Grass Lawn Idylwood North Redmond Bear Creek Southeast Redmond Sammamish Valley Willows & Rose Hill
Near Marymoor Park, Idylwood Park, Redmond Central Connector, and everywhere in between.
Local know-how
What's hard on plumbing in Redmond.
Scale on the well-water side
Groundwater east of the Sammamish River runs about 90 mg/L, moderately hard, versus about 20 mg/L for Tolt water. USGS notes heating hard water forms scale that can shorten a water heater's life, so flush tanks and descale tankless units regularly; we service both.
Polybutylene in 1980s and 1990s builds
About 34 percent of Redmond homes were built from 1980 to 1999, and polybutylene supply pipe was installed from roughly 1978 to 1995. If your home dates from those years, we can check what's behind the walls and repipe with PEX or copper.
Water heaters from the 2000s boom
Forty percent of Redmond homes were built in 2000 or later, and tank water heaters typically last 8 to 12 years, so many original units may be at or past that age. We replace tank and tankless models, gas or electric.
Water running right now?
Shut off the main water valve, turn off the water heater, and call us. Our emergency line answers 24/7.
Services
Our services in Redmond.
- 01Plumbing
Drain cleaning in Redmond
Slow sinks, backed-up showers and main-line clogs cleared with professional cable machines and hydro-jetting, with a camera inspection when we need to see what's causing it.
- — Kitchen, bathroom, laundry and floor drains cleared
- — Main sewer line cleaning from the cleanout
- — Hydro-jetting to scour grease, scale and roots off the pipe walls
Typical price: $250–$550 for a standard drain cleaning
Learn more - 02Plumbing
Water heaters in Redmond
Tank and tankless, gas and electric: same-day repairs, code-compliant replacements and upgrades, with the unit sized to your household.
- — Diagnosis and repair of thermostats, elements, gas valves, igniters and leaks
- — Tank water heater replacement, same day when possible
- — Tankless water heater installation and upgrades
Typical price: $2,200–$4,000 for a replacement, depending on the unit
Learn more - 03Plumbing
Leak repair in Redmond
Leaks found with electronic detection instead of guesswork, then fixed for good: pipes, fittings, valves, fixtures, slabs and burst lines.
- — Leak detection behind walls, under floors and in slabs
- — Pipe, fitting and valve repairs (copper, PEX, galvanized, CPVC)
- — Burst and frozen pipe repair
Typical price: $500–$1,100 for most leak repairs
Learn more - 04Plumbing
Repiping in Redmond
Aging galvanized or polybutylene supply lines replaced with PEX or copper, with small access openings, a pressure test and a written warranty.
- — Whole-home PEX or copper repipe
- — Galvanized steel and polybutylene replacement
- — New shutoff valves at fixtures
- 05Plumbing
Sewer lines in Redmond
Main sewer lines camera-inspected, cleaned of roots and grease, and repaired or replaced when the pipe itself has failed.
- — Sewer camera inspection with the footage explained
- — Main line cleaning and root cutting
- — Hydro-jetting for grease and root buildup
- 06Heating & cooling
HVAC in Redmond
Furnaces, heat pumps, air conditioners and ductless mini-splits repaired, maintained and installed, plus duct cleaning and repair.
- — Furnace repair, maintenance and replacement
- — Heat pump repair and installation
- — Air conditioner service and installation
Also available in Redmond: faucet, toilet and fixture installation, 24/7 emergency plumbing, and the Dam Good Defenders Club membership.
- Upfront, written flat-rate price before any work begins
- Dam Good Guarantee: if something we fixed isn't right, we come back and make it right, no charge.
- WA contractor license BEAVEPI741J3
Good questions
Redmond plumbing FAQ.
Don't see your question? Call or text (425) 845-3535. A real person answers, 24/7.
Is Redmond's water hard?
It depends which side of the river you're on. Redmond says its groundwater, served mostly east of Lake Sammamish and the Sammamish River, is medium-hard at about 90 mg/L (6 grains per gallon). Tolt water on the west side and in Redmond Ridge and Trilogy is very soft, about 20 mg/L. USGS notes that heating hard water can leave calcium carbonate scale in water heaters.
Does my Redmond sprinkler system need a backflow test?
Yes. Redmond's water report says state law requires a backflow prevention assembly on irrigation systems, as well as fire systems, boilers, spas and water features, and each assembly must be tested every year by a Washington-certified tester. The city mails reminder letters for assemblies on file; if you never get one, contact its Cross-Connection Program. Leaks in the line feeding your sprinklers are a repair we handle.
Nearby areas we serve
Sources for local facts on this page
- https://redmond.gov/DocumentCenter/View/28402/2026-Water-Quality-Report
- https://www.redmond.gov/FAQ.aspx?QID=175
- https://www.redmond.gov/891/Neighborhoods
- https://en.wikipedia.org/wiki/Redmond,_Washington
- https://censusreporter.org/profiles/16000US5357535/
- https://www.usgs.gov/special-topics/water-science-school/science/hardness-water
Plumbing problem in Redmond? Let's fix it right.
Free estimates, upfront flat-rate pricing, and a 24/7 emergency line at (425) 845-3535.