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Select the option that best describes your situation
Full House Repipe
Replace all supply lines
›
Partial Repipe
One area or floor only
›
Single Line Repair
Fix a specific pipe or section
›
Water Heater + Pipe
Combined pipe and heater project
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Other / Not Sure
I'll describe my project below
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Your Washington estimate
$11,850
$5,200 – $22,200 typical range in Washington
Based on your project and Washington's COL index of 148
FixItCosts› Whole-House Repiping› Washington, DC
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Plumbing

Whole-House Repiping Cost
in Washington, DC

📍 Washington, DC · Updated March 2026 · ✓ Verified Washington data · BLS cost-of-living adjusted
Budget
$5,200
Basic / entry level
Most Common
$11,850
Standard quality
Average
Premium
$22,200
High-end / complex
Price Spectrum — Washington vs National Average
$5,200$22,200
Washington: $11,850
National avg: $8,000
48% above national avg

Full Price Breakdown

Verified Washington contractor rates — COL-adjusted
Whole-House Repiping Cost in Washington — By Level
LevelPrice RangeWhat This Gets You
Budget$5,200Entry-level materials, basic spec, smaller crew
Standard$11,850Mid-grade materials, licensed contractor, permit included
Premium$22,200High-end materials, established firm, full warranty
Per unitAvg: $11,850Per project — Washington

📍 Washington vs national average: $11,850 in Washington vs $8,000 national avg for Whole-House Repiping. Data sourced from BLS Regional Price Parities and updated quarterly.

See Washington Quick Facts in the panel to the right — including how to verify any attorney's licence.
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Estimate Your Cost in Washington

🧮 Washington Whole-House Repiping Calculator
Pipe Material
Home Size
Estimated Cost in Washington
$11,850
$5,200 – $22,200 estimated range
📍 Washington tip: Always get 3 itemised quotes before committing. The cheapest quote is rarely the best value.
📐 Data source: BLS Regional Price Parities, adjusted for Washington. Estimates reflect market averages and may vary. Full methodology →
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Pipe material choice: PEX vs copper vs CPVCPEX (cross-linked polyethylene) is the most popular repiping material in Washington today — flexible, freeze-resistant, and easier to install, running $5,200–$9,480. Copper is the traditional premium choice at $9,480–$22,200 — longer-proven track record but more expensive and harder to install. CPVC is a midpoint option. In Washington, where varies by season, copper's susceptibility to pinhole leaks in acidic water makes PEX an increasingly preferred choice.
Home size and stories drive labour costRepiping cost scales with the number of fixtures (bathrooms, hose bibs, appliances) and floors. A one-story, 2-bathroom home runs $5,200–$8,295. A two-story, 4-bathroom home runs $9,480–$22,200. Multi-story homes require running pipes through walls between floors — accessing and patching these wall openings adds significantly to both labour and drywall repair costs. Get a fixture count from your contractor before accepting any quote.
Wall access and drywall repair is a major variableRepiping requires cutting access holes in drywall to run new pipes. The number of holes, their location (tile vs. drywall vs. concrete), and who handles patching dramatically affects total cost. Some plumbers quote pipe installation only — leaving you to hire a drywaller and painter separately. Confirm whether wall patching is included in your quote or a separate scope.
Water heater replacement is often bundled at a discountIf your water heater is more than 8–10 years old, replacing it during a whole-house repipe is significantly cheaper than doing it separately — the plumber is already on-site and the lines are already open. Ask for a bundled price. A tank water heater adds $1,185–$2,962 during a repipe vs. $2,370–$4,740 as a standalone call.
Water quality in Washington affects which material to chooseHigh-chlorine or low-pH (acidic) water accelerates copper pipe corrosion and is a primary cause of pinhole leaks that trigger repiping in the first place. If your original pipes failed from corrosion rather than age, PEX is the right replacement material. Ask your plumber specifically whether water quality contributed to your pipe failure — the answer should inform the material recommendation.
Permits and inspection protect your home's insurabilityWhole-house repiping requires a plumbing permit and inspection in Washington. Unpermitted repiping work can void your homeowner's insurance for water damage claims and create problems at resale when a home inspector finds evidence of unpermitted work. Always confirm permits are included. Post-inspection sign-off is your documentation that the work meets code.
Before You Hire in Washington
✅ Before Signing Anything
✓Verify contractor licence at dcra.dc.gov (DCRA)
✓Get 3 itemised quotes specifying materials and scope
✓Confirm permits are included in the quote
✓Never pay more than 10–20% upfront
✓Ask for proof of insurance and bonding
🚫 Red Flags
✗No written contract or scope of work
✗Quote excludes permits or disposal
✗Demands full payment upfront
✗Cannot provide local references
✗Unusually low quote with vague scope
📐
How we calculate Washington prices: Base cost data from industry surveys, adjusted by Washington's BLS Regional Price Parity index (148 vs US average 100). Reviewed quarterly. Full methodology →
March 2026
How much does whole-house repiping cost in Washington?
Whole-house repiping in Washington costs $11,850 on average, ranging from $5,200 for a small home using PEX to $22,200 for a large multi-story home with copper pipe or complex access. Washington's COL index of 148 puts local plumbing labour 48% above the national average. Home size (number of fixtures and floors), pipe material, and wall access complexity are the primary cost variables.
What are the signs that my Washington home needs repiping?
Key warning signs: multiple pinhole leaks (2+ in recent years), persistent discoloured or metallic-tasting water, significantly reduced water pressure throughout the home, visible corrosion or greenish staining around pipe connections, or pipes confirmed to be galvanised steel (common in Washington homes built before 1960). A single leak doesn't necessarily indicate repiping is needed — a licensed Washington plumber can inspect your pipe condition and give you an honest assessment.
How long does whole-house repiping take in Washington?
Most whole-house repipes in Washington take 2–4 days for the plumbing work itself, with an additional 1–3 days for drywall patching and painting. Your water will be shut off during the work days but restored each evening. Permits and inspections add 1–2 weeks to the overall project timeline. Confirm with your contractor whether drywall repair is included in their scope or whether you need to hire separately.
Should I choose PEX or copper pipe for repiping in Washington?
PEX is now the preferred material for most Washington repipes — it's flexible, freeze-resistant, faster to install (lower labour cost), and doesn't corrode. If your original pipes failed from corrosion in Washington's water conditions, PEX is the right replacement choice. Copper remains a premium option with a longer proven track record and is preferred by some homeowners for resale perception. Both materials, properly installed, will last 50+ years. The quality of the installation matters more than the material choice.
Does repiping increase my home's value in Washington?
Yes — whole-house repiping adds immediate equity in Washington's real estate market. Galvanised or failing plumbing is a significant red flag for home buyers and lenders; repiping removes it. Most Washington real estate agents report that disclosed repiping with a transferable permit and inspection record adds $7,110–$11,850 to a home's effective value or negotiating position. Always keep the permit, inspection sign-off, and contractor warranty documentation for disclosure at sale.

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Step 1 of 3 — What best describes your whole-house repiping project?
01
Roof Replacement — Washington, DCRoofing · Updated March 2026
$7,400–$26,650
02
HVAC Installation — Washington, DCHVAC · Updated March 2026
$5,600–$18,500
03
Bathroom Remodel — Washington, DCRemodeling · Updated March 2026
$8,150–$32,550
04
Kitchen Remodel — Washington, DCRemodeling · Updated March 2026
$17,750–$103,600
05
Window Replacement — Washington, DCWindows · Updated March 2026
$6,650–$26,650
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