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DIY or call a pro?

Three questions, one honest answer — based on Washington licensing rules and how our guides rate the work.

Cost lookup

Real price ranges from 182 WA guides — type a job or problem to filter. Every row links to the full guide.

182 entries

• Backed Up Drains in Multiple Fixtures: What It Means and What to Do $175–$350 main line snake · $500–$800 hydro jetting
• Basement Flooding Prevention in Seattle: Causes and Fixes $500–$15,000 depending on the cause and fix
• Bathroom Remodel Plumbing Cost Seattle: What to Expect $1,500–$15,000 depending on scope
• Bathroom Sink Aerator: How to Clean, Remove, and Replace It $0 to clean · $3–$10 to replace
• Bathtub Drain Clogged With Hair: How to Clear It Fast $0–$25 DIY · $95–$175 if plumber needed
• Buildup Inside Galvanized Pipes: What It Is and What to Do $0 to check · $4,000–$15,000 to repipe
• Burst Pipe Emergency Repair: What to Do Right Now $300–$2,500 for repair · $1,000–$40,000 with water damage
• Burst Pipe Repair Cost Seattle: What to Expect $300–$2,500 for pipe repair · $3,000–$40,000 with water damage
• Burst Pipes in Winter: Prevention, Signs, and What to Do $300–$2,500 repair · $3,000–$40,000 with water damage
• Cast Iron Drain Pipe Problems: Diagnosis and Solutions $300–$15,000 depending on problem and scope
• Cast Iron Pipe Corrosion: Causes and What It Means for Your Plumbing $500–$20,000 depending on extent
• Cast Iron Pipes in Older Homes: What to Know $2,000–$20,000 depending on scope of replacement
• Cast Iron Sewer Line Replacement: Options and Costs $3,000–$20,000 depending on method and scope
• Cast Iron vs. PVC Pipe Replacement: What to Choose $500–$20,000 depending on project scope
• Clay Sewer Pipes Replacement: When to Replace and What It Costs $4,000–$20,000 depending on length and method
• Clay Tile Sewer Line Problems: Causes, Signs, and Fixes $300–$20,000 depending on repair scope
• Clogged Drain from Tree Roots: Signs You Have a Root Problem $150–$500 to diagnose and clear
• Clogged Drain: How to Clear It and When to Call a Plumber $0–$300 depending on approach
• Clogged Toilet Backing Up: What to Do When the Plunger Fails $0–$300 depending on approach
• Contractor License Requirements Washington: Plumbing Guide Free to verify
• Could a Burst Pipe Be Causing Your Low Water Pressure? How to Tell $300–$1,500+ for pipe repair · $1,500–$4,000+ if underground
• Crawl Space Moisture Issues: Causes, Fixes, and What It Costs $500–$15,000 depending on scope
• Discolored Water From the Tap: Causes, Safety, and What to Do $0 to diagnose · $4,000–$15,000 if repipe needed
• Do I Need a Plumbing Permit? Seattle Guide $150–$800 permit cost
• Drain Camera Inspection: What It Costs, What They Find, and When You Need One $150–$350 residential · $250–$500 full sewer scope
• Drain Cleaning Service: What It Costs, What They Do, and When to Call $95–$350 standard service · $350–$800 hydro-jetting
• Drain Smells Like Rotten Eggs: Causes and Fixes $0–$300 depending on cause
• Drain Snake vs. Hydro Jetting: Which One Do You Actually Need? $95–$250 snaking · $300–$800 hydro jetting
• Dry P-Trap Sewer Smell: How to Fix It $0–$100 depending on cause
• Electric vs. Tankless Water Heater: Which Is Right for Seattle Homes? $800–$2,500 electric tank · $2,000–$5,000 tankless
• Emergency Plumber Seattle 24/7: What to Know Before You Call $200–$500+ for emergency service calls
• Everett Plumbing and Sewer: Homeowner Guide $120–$180/hour; sewer repair $2,000–$20,000+
• Faucet Cartridge Replacement: How to Do It Right the First Time $10–$40 DIY · $125–$250 with a plumber
• Faucet Leaking at the Base? What Causes It and How to Fix It $5–$20 DIY · $95–$225 with a plumber
• Faucet O-Ring and Washer Replacement: Why Faucets Drip and How to Fix Them $3–$15 DIY · $95–$200 with a plumber
• Foul Odor from Drain: Causes and How to Get Rid of It $0–$200 depending on cause
• Freeze-Thaw Cycle Pipe Damage: Why Pipes Fail After Temperature Swings $200–$10,000 depending on damage
• Frozen Pipe Repair Cost: What to Expect in Seattle $200–$1,500 for pipe repair · $3,000–$15,000 with water damage
• Frozen Pipes Bursting: Water Damage Response and What It Costs $1,000–$50,000+ depending on damage extent
• Frozen Pipes in Older Homes: What Makes Them More Vulnerable $500–$5,000 burst pipe repair · $50–$200 prevention
• Frozen Pipes: What to Do Right Now $0 (DIY thaw) to $500+ (plumber)
• Frozen Water Line Replacement: Costs, Options, and When to Replace $500–$4,000 repair · $3,000–$10,000 full replacement
• Galvanized Pipe Corrosion: Signs, Risks, and What to Do $0 visual check · $5,000–$15,000 full repipe
• Galvanized Pipe Lifespan: How Long They Last and When They Fail $0 to assess · $4,000–$15,000 to repipe
• Galvanized Pipe Replacement Cost: What to Expect and How to Plan $4,000–$15,000 depending on home size and scope
• Galvanized Pipes and Low Water Pressure: What to Do in an Older WA Home $0 diagnosis · $8,000–$15,000 full repipe
• Galvanized Pipes in Older Homes: What to Know Before You Buy or Renovate $150–$300 assessment · $4,000–$15,000 repipe
• Garbage Disposal Installation: Permit, Cost, and Process $200–$600 installed
• Gas Water Heater Venting: Requirements, Problems, and Fixes $150–$600 vent repair · $300–$900 vent replacement
• Grading: How to Slope Water Away From Your Foundation $200–$5,000 depending on scope
• Grease Clogged Kitchen Drain: How to Clear It and Keep It Clear $0–$15 DIY · $125–$400 professional
• Gurgling Sounds from Drain: What They Mean and How to Fix It $0–$300 depending on cause
• Gurgling Sounds in Pipes: Causes and What to Do $0 (minor fix) to $3,000+ (drain line repair)
• Hair and Soap Scum in Drains: How to Clear It and Keep It Clear $0–$25 DIY · $95–$175 if plumber needed
• Hard Water in Seattle: What It Does to Your Pipes and How to Fix It $20–$60 test kit · $800–$2,500 water softener installed
• Heat Pump Water Heater in Washington State: Worth It? $1,600–$3,200 installed · $200–$750 in rebates available
• High Water Pressure in Your House: How to Diagnose and Fix It $0 to test · $350–$700 to install PRV
• Hiring a Plumber in Bellevue: What Homeowners Need to Know $120–$200/hour; varies by project
• Hiring a Plumbing Contractor in Spokane: Homeowner Guide $100–$160/hour; varies by project
• How Long Do Galvanized Pipes Last? A Realistic Assessment $0 to assess · $4,000–$15,000 to repipe
• How to Fix Low Water Pressure: Every Option Ranked by Cost and Effort $0 DIY fixes · $95–$15,000 depending on cause
• How to Increase Shower Water Pressure (And Why It Dropped) $0 DIY fix · $95–$350 if pro needed
• How to Prevent Frozen Pipes in Washington State (WA Homeowner Guide) $0–$200 for prevention · $1,000–$10,000 if pipes burst
• How to Remove Roots from Pipes: Methods and What Actually Works $300–$900 for professional clearing
• How to Test Your Home Water Pressure (And What the Numbers Mean) $10–$15 for a gauge · $95–$175 for a plumber visit
• Hydro Jetting Tree Roots: What It Does and When to Use It $400–$900 for residential lateral
• Hydro Jetting vs. Snaking: Which One Is Right for Your Drain? $95–$350 snaking · $300–$800 hydro jetting
• Hydro Jetting: What It Is, What It Costs, and When You Need It $300–$800 residential · $800–$2,500 main sewer line
• Insulating Pipes for Winter: Best Materials, Methods, and Where to Focus $30–$200 DIY materials · $200–$600 professional installation
• Is a Partially Closed Valve Causing Your Low Water Pressure? How to Check $0 — this is a DIY fix in almost every case
• Is Mineral Buildup Causing Your Low Water Pressure? (How to Fix It) $0 DIY for fixtures · $150–$600+ for pipe or heater issues
• Island Sink Plumbing Installation: Seattle Homeowner Guide $2,000–$6,000 installed
• Kitchen Faucet Spray Head Replacement: Fix or Replace Guide $15–$50 DIY; $150–$300 with plumber
• Kitchen Sink Plumbing Renovation: Seattle Homeowner Guide $500–$5,000 depending on scope
• L&I Plumber Licensing in Washington: What Homeowners Need to Know Free to verify (check L&I website)
• Landscape Drainage Solutions: Options for Standing Water and Wet Yards $300–$12,000 depending on the approach
• Lead Caulked Joints in Clay Pipes: What They Are and What to Do $4,000–$15,000 for lateral replacement
• Leak Under the House Foundation: Signs, Causes, and Repair $1,500–$12,000 depending on repair approach
• Leaking Drain Trap Nuts: How to Tighten or Replace Them $5–$100 depending on DIY or plumber
• Leaking Temperature Pressure Relief Valve: Causes and Fixes $15–$40 for T&P valve · $150–$250 if expansion tank needed
• Leaking Toilet Base: Wax Ring or Something Else? $150–$400 repair
• Leaking Water Heater: What It Means and What to Do $0–$200 if repairable · $900–$1,600 if replacement needed
• Leaky Kitchen Faucet? How to Find the Source and Fix It $10–$40 DIY · $125–$350 with a plumber
• Limescale Buildup on Pipes and Faucets: How to Remove It and Stop It Coming Back $0–$15 DIY · $95–$150 professional descale
• Low Flow Aerator: What It Does, What It Saves, and Whether You Need One $3–$15 per aerator
• Main Line Blockage from Tree Roots: Signs and How to Clear It $250–$500 to clear; $5,000–$20,000 to repair
• Main Line Clog Symptoms: How to Know If Your Sewer Line Is Blocked $175–$350 snaking · $500–$800 hydro jetting
• Main Water Line Leak: Signs, Causes, and Repair $2,000–$12,000 depending on repair approach
• Mineral Deposits on Your Showerhead: How to Clean It and Keep It Clear $0–$15 DIY · $95–$175 if aerator or showerhead replaced
• Multiple Bathroom Sink Plumbing: Double Vanity Guide $500–$3,000 to add a second sink
• Musty Smell in Basement: Causes and How to Fix It $100–$8,000 depending on the cause
• Natural Drain Cleaner Alternatives: What Actually Works $0–$15 DIY
• Old Cast Iron Drain Smell: Causes and Fixes $0 (dry trap fix) to $10,000+ (pipe rehabilitation)
• Old Toilet Replacement for Efficiency: When It Makes Sense $400–$800 installed
• Orangeburg Pipe Replacement: What It Is and What to Do $4,000–$15,000 depending on length and method
• P-Trap Plumbing Problems: What Goes Wrong and How to Fix It $5–$200 depending on problem
• P-Trap Replacement Under Sink: Step-by-Step Guide $10–$100 depending on DIY or plumber
• Perimeter Drain Installation: French Drains, Costs, and What to Expect $2,500–$10,000 depending on length and type
• Pinhole Leaks in Copper Pipes: Causes, Detection, and What to Do $200–$600 per repair · $8,000–$18,000 full repipe
• Pinhole Leaks in Copper Pipes: Causes, Repair, and When to Repipe $150–$400 per repair · $5,000–$15,000 full repipe
• Pipe Lining vs. Replacement: How to Choose in Seattle $5,000–$20,000 depending on method
• Plumbing Code Seattle SDCI: What Homeowners Need to Know Free to understand; varies by correction needed
• Private Sewer Lateral Responsibility: Who Owns It and Who Pays $4,000–$20,000 for repair or replacement
• Puget Sound Plumbing: Maintenance Guide for Western Washington Homes $150–$500 for a plumbing inspection
• Rerouting Plumbing Pipes in a Renovation: Seattle Guide $1,500–$10,000+ depending on scope
• Root Barrier for Sewer Lines: Prevention and When It Works $200–$1,500 depending on method
• Root Intrusion in Sewer Lateral: Assessment and Repair Options $300–$800 clearing · $3,000–$12,000 permanent repair
• Running Toilet Fill Valve: How to Fix or Replace It $15–$200 depending on DIY or plumber
• Rust and Discolored Water From Galvanized Pipes: Causes and Fixes $20–$60 water test · $4,000–$15,000 to repipe
• Rusted Cast Iron Sewer Pipe: Assessment and Options $500–$20,000 depending on assessment findings
• SDCI Permit Requirements Seattle: Plumbing Guide $150–$1,000 permit fees depending on project
• Seattle Plumbing Permit Cost: What to Expect $150–$800 for most residential permits
• Seattle Tap Water Quality: Is It Safe, and What Affects the Taste? $0 (public data) · $40–$100 if testing needed
• Septic Backup: What to Do and How to Prevent It $400–$600 emergency pump-out; cleanup $1,000–$5,000+
• Septic Drain Field Problems: Causes, Signs, and What to Do $3,000–$25,000+ depending on repair type
• Septic System Failure Signs: Washington Homeowner Guide $3,000–$30,000 to repair or replace
• Septic System Inspection Requirements Washington: Buyer & Seller Guide $200–$500 for a septic inspection
• Septic System Replacement Cost in Washington: What to Expect $10,000–$40,000+ depending on system type
• Septic Tank Pumping Frequency: How Often and What It Costs $300–$600 per pump-out
• Sewage Smell in the House: Causes and How to Find It $0 (dry trap fix) to $5,000+ (sewer line repair)
• Sewer Lateral Camera Inspection: What to Expect and What It Costs $150–$400 for a residential sewer scope
• Sewer Lateral Permits: What’s Required and How the Process Works $250–$800 for permits depending on scope
• Sewer Lateral Repair Options: Repair vs. Replace and What Each Costs $300–$20,000 depending on scope and method
• Sewer Lateral Replacement Cost: What to Expect in Seattle $4,000–$20,000 depending on length and method
• Sewer Line Backed Up from Tree Roots: What to Do $400–$900 emergency clearing · $3,000–$12,000 permanent fix
• Sewer Repair in Tacoma: What Homeowners Need to Know $500–$15,000+ depending on scope
• Side Sewer Lateral Failure: Signs, Causes, and What to Do $4,000–$20,000 depending on scope and method
• Side Sewer Permit Seattle: What Homeowners Need to Know $300–$800 permit fee; $5,000–$20,000+ repair cost
• Signs of a Failed Sewer Lateral: How to Tell Before It’s Too Late $4,000–$15,000 for repair or replacement
• Signs of Failing Cast Iron Pipes: What to Watch For $500–$20,000 depending on extent of failure
• Signs You Have a Hidden Water Leak (WA Homeowner Guide) $0 (DIY detection) to $500 (professional detection)
• Soft Water Pipe Corrosion: Why Soft Water Can Damage Copper Pipes $20–$60 water test · $500–$1,500 pH correction system
• Storm Drain Cleaning: Whose Responsibility and How to Fix Clogs $150–$800 for professional cleaning
• Strange Noises in Pipes: What Each Sound Means and How to Fix It $0–$50 DIY · $75–$400 if professional fix needed
• Sump Pump Installation: Cost, Process, and What to Expect $1,000–$3,500 installed with battery backup
• Thawed Pipes Leaking After a Freeze: What to Do $200–$2,500 for pipe repair · $3,000–$20,000 with water damage
• Toilet Fills Slowly: Causes and How to Fix It $15–$200 depending on fix
• Toilet Flapper Replacement: DIY Guide $5–$150 depending on DIY or plumber
• Toilet Gurgles When Shower Drains: Causes and Fixes $150–$500 depending on cause
• Toilet Repair vs. Replacement Seattle: When to Fix and When to Replace $150–$800 depending on repair or replacement
• Toilet Running Constantly: How to Fix It $5–$200 depending on the fix
• Toilet Seal Replacement Cost: Wax Ring and What to Expect $150–$400 with plumber
• Toilet Won’t Flush All the Way: Causes and Fixes $0–$30 DIY · $75–$250 if professional fix needed
• Tree Roots Clogged Drain: What to Do $300–$800 for clearing · $3,000–$12,000 for permanent fix
• Tree Roots in Clay Pipes: What to Expect and Your Options $300–$15,000 depending on repair approach
• Tree Roots in Sewer Line: Signs, Removal, and Prevention $300–$900 for cleaning · $3,000–$12,000 for repair
• Trenchless Cast Iron Pipe Repair: Methods and Costs $3,000–$10,000 depending on method and lateral length
• Trenchless Pipe Repair in Seattle: What It Is and When It Makes Sense $5,000–$15,000 depending on method and length
• Trenchless Sewer Lateral Replacement: How It Works and What It Costs $5,000–$14,000 for most residential laterals
• Under Sink Leak at P-Trap: Causes and How to Fix It $5–$150 depending on DIY or plumber
• Water Backing Up in Toilet: Causes and What to Do $0 (simple clog) to $3,000+ (sewer line blockage)
• Water Damage Restoration and Drywall Repair: What to Expect $1,500–$20,000+ depending on damage extent
• Water Hardness in King County: How to Test It and What It Means $10–$60 test kit
• Water Heater Installation in Seattle: Costs, Permits, and What to Expect $900–$2,400 installed (tank) · $1,800–$4,500 installed (tankless)
• Water Heater Noise: Rumbling, Popping, Banging, and Hissing Explained $0–$200 DIY flush · $75–$250 professional service
• Water Heater Not Heating Water: What to Check and How to Fix It $0–$60 DIY · $150–$500 if element or thermostat replaced
• Water Heater Permit Requirements in Seattle and Washington State $75–$150 permit fee · $50–$200 inspection fee
• Water Heater Permit Seattle: What Homeowners Need to Know $150–$450 permit fee
• Water Heater Replacement Cost: What to Expect in 2026 $900–$1,600 (tank) · $1,800–$4,500 (tankless)
• Water Heater Sediment Buildup: Signs, Effects, and How to Fix It $0 DIY flush · $75–$200 professional flush
• Water Heater Temperature Setting: What to Set and Why $0 to adjust
• Water Leak Detection Services: When to Call and What to Expect $250–$800 for detection · $500–$5,000+ for repair
• Water Leaking Around Toilet Base: Causes and Fixes $150–$600 depending on cause
• Water Pressure Drops: Why It Happens and How to Fix It $0 to diagnose · $75–$500 if professional fix needed
• Water Pressure Regulator: Signs It’s Failing and When to Replace It $250–$450 installed in Seattle (2026)
• Water Softener Installation in Seattle: Cost, Process, and Whether You Need One $800–$2,500 installed
• Well Water Contamination from Septic: Signs and Testing $100–$400 water testing; varies for remediation
• Wet Spots in Yard From Sewer Line: Causes and What to Do $4,000–$15,000 for lateral repair or replacement
• What Causes Low Water Pressure? (Every Common Reason Explained) $0 DIY diagnosis · $95–$450 if pro needed
• When Does Clay Sewer Pipe Fail? Signs, Timeline, and What Causes It $4,000–$15,000 for lateral replacement
• When to Replace Cast Iron Pipes: Decision Guide $2,000–$20,000 depending on scope
• When to Replace Galvanized Pipes: Signs It’s Time and How to Decide $4,000–$15,000 full repipe
• Whistling Noise from Toilet: Causes and Fixes $15–$150 depending on DIY or plumber
• Whole House Water Softener: Do Seattle Homes Need One? $800–$3,000 installed
• Why Did My Water Pressure Drop Suddenly? (Causes and What to Do) $0 if municipal issue · $95–$500+ if home plumbing
• Why Does Water Pressure Drop When Multiple Fixtures Run? (How to Fix It) $0 PRV adjustment · $250–$450 PRV replacement · $8,000–$15,000 repipe
• Why Is My Faucet Dripping? (How to Fix It and What It Costs) $5–$25 DIY parts · $95–$275 with a plumber
• Why Is My Hot Water Pressure Low But Cold Is Fine? (And How to Fix It) $0 DIY diagnosis · $95–$2,400 if pro needed
• Why Is My Shower Draining Slowly? Causes and Fixes $0–$30 DIY · $95–$250 if plumber needed
• Why Is My Water Bill Suddenly High? (WA Homeowner Guide) $0 (simple fix) to $5,000+ (if leak repair needed)
• Winter Plumbing Cold Snap: What to Do When Temperatures Drop Fast $0–$50 for immediate protection
• Yard Drainage Problems in Heavy Rain: Causes and Fixes $500–$10,000 depending on scope