Plumbing guides
In-depth guides to common plumbing decisions: cost, repair vs replace, what to expect from a verified plumber, regional considerations.
Cornerstone guides
5 deep references covering the highest-value services: costs, repair vs. replace decisions, what to expect, and regional factors. See all cornerstone guides →
- Cornerstone
Sewer Line Repair: The Complete Guide
How sewer line repair works, what it costs in 2026, methods compared, and when to repair vs replace. Real per-city cost data with sources cited.
- Cornerstone
Slab Leak Repair: The Complete Guide
How slab leak repair works, what it costs in 2026, detection methods compared, and when to spot-repair vs full repipe. Per-city cost data + sources.
- Cornerstone
Tankless Water Heater Installation: The Complete Guide
How tankless water heater install works in 2026 — cost, gas vs electric, sizing, payback by gas rate, and per-city pricing with sources.
- Cornerstone
Whole-Home Repipe: The Complete Guide
How whole-home repipe works in 2026 — cost, PEX vs copper vs CPVC, when to repipe vs spot-repair. Per-city cost data with sources.
- Cornerstone
Hydro Jetting: The Complete Guide
How hydro jetting works, when it solves what snaking can't, 2026 cost, and when high-pressure water is the wrong answer. Per-city pricing + sources.
- Cornerstone
Drain Cleaning: The Complete Guide
How professional drain cleaning works — snake vs. hydro jetting, main line vs. branch, cost by method, when cleaning isn't enough. Sourced data.
- Cornerstone
Water Heater Replacement: The Complete Guide
How to replace a water heater in 2026 — tank vs. heat pump vs. tankless, sizing, IRS 25C credits, cost by type. Licensed plumber required.
- Cornerstone
Burst Pipe Repair: Emergency Response Guide
What to do when a pipe bursts — emergency shutoff steps, repair options, insurance documentation, freeze prevention, and cost. Complete guide.
- Cornerstone
Frozen Pipe Repair: Complete Guide
How to safely thaw a frozen pipe, recognize a burst, and prevent recurrence — emergency response steps, freeze-tolerance data, and cost by scenario.
- Cornerstone
Emergency Plumber: What to Expect
How to triage a plumbing emergency, what to do before the plumber arrives, how emergency pricing works, and red flags to avoid. Complete homeowner guide.
- Cornerstone
Water Softener Installation Guide
How water softeners work, how to size one correctly, ion exchange vs. salt-free systems, installation requirements, maintenance, and cost breakdown.
Troubleshooting guides
Symptom-based guides with step-by-step diagnosis, cost data, and repair-vs-replace guidance.
- Troubleshooting
Signs You Have a Slab Leak
Seven signs of a slab leak — warm floor spots, running-water sounds, and bill spikes — and when to call before foundation damage sets in.
- Repair vs Replace
Slab Leak Repair Cost: What Drives It
How detection fees, access complexity, and repair method combine to set the final cost — with permit fee context for Phoenix, Boston, and Minneapolis.
- Repair vs Replace
Sewer Line Repair Cost: What Drives It
Sewer line repair cost ranges from $175 for spot cleanout to $250/ft for open excavation. What drives the spread: access method, pipe material, and scope.
- Troubleshooting
Sewer Line Replacement: Signs You Need It
Camera findings, sewage backup patterns, and pipe material red flags that indicate your sewer line needs replacement, not just cleaning or spot repair.
- Troubleshooting
Signs of a Sewer Line Problem
Six signs of a sewer line problem — multiple fixture backups, gurgling, sewage smell, yard wet patches — and the right diagnostic step before excavation.
- Repair vs Replace
Sewer Line Replacement Cost: Full Breakdown
Sewer line replacement costs $4,000–$15,000 depending on length, access method, and market. This guide breaks down cost by method, pipe length, and city.
- Troubleshooting
Signs Your House Needs a Whole-House Repipe
Pinhole leaks, rust-colored water, and pressure drops — 6 signs your supply lines have reached the end of their service life and when to repipe.
- Repair vs Replace
Whole-House Repipe Cost: PEX vs. Copper
Whole-house repipe costs $5,000–$12,000 for most homes. Covers PEX vs. copper pricing, labor, permit fees, and the repipe-vs-spot-repair decision.
- Repair vs Replace
Water Heater Replacement Cost in 2026
Water heater replacement costs $800–$1,800 installed for a gas tank unit. Covers fuel type, labor, permits, and the IRS 25C heat-pump credit.
- Troubleshooting
Signs You Need a New Water Heater
Seven signs your water heater needs replacement — age, rust in hot water, sediment rumbling, T&P valve trips — and when repair stops making sense.
- Repair vs Replace
Drain Cleaning Cost: What Plumbers Charge
Drain cleaning costs $150–$650 depending on method and line type. Covers snaking vs. hydro jetting, camera fees, and main line vs. branch drain pricing.
- Troubleshooting
Emergency Plumber Cost: After-Hours Rates
Emergency plumber calls cost $150–$400 plus a $75–$200 after-hours surcharge. Covers trip charges, surge pricing, and what qualifies as a true emergency.
- Seasonal
Frozen Pipe Repair Cost: Thaw and Repair
Frozen pipe repair costs $150–$500 for thawing, more if burst. Covers detection, thawing methods, pipe repair after a freeze, and water damage.
- Troubleshooting
Leak Detection Cost: What Plumbers Charge
Leak detection costs $150–$400 for acoustic and thermal methods. Covers slab leak detection, in-wall leaks, pressure testing, and camera inspection fees.
- Troubleshooting
Signs You Have a Hidden Water Leak
Seven signs of a hidden water leak — bill spikes, the meter test, warm floor spots, and wall stains — and when to call for professional detection.
- Repair vs Replace
Tankless Water Heater Installation Cost
Tankless water heater installation costs $2,000–$5,000 for gas retrofit. Covers gas line upgrades, venting, permits, and whole-house vs. point-of-use.
- Troubleshooting
Burst Pipe: What to Do Immediately
Step-by-step emergency response to a burst pipe — shut off water, minimize damage, document for insurance, and what to tell your plumber when you call.
- Troubleshooting
Water Heater: No Hot Water Diagnosis & Fix
No hot water from your water heater? Diagnose the cause — pilot light, thermostat, element, or age — and learn when to repair vs replace.
- Troubleshooting
Water Heater Leaking: What To Do
Where water heater leaks originate, what each location signals, and when a repair is possible vs. when the tank has reached end of life.
- Troubleshooting
Tankless Water Heater: Common Problems
Error codes, cold water sandwich, inconsistent hot water, and scale buildup — the most common tankless water heater problems and what each actually means.
- How-To
Tankless Water Heater Sizing Guide
Sizing a tankless water heater by GPM demand and temperature rise. Why undersizing is the top install mistake and how to calculate the right BTU output.
- Troubleshooting
Low Water Pressure: Causes and Fixes
Why your water pressure dropped and how to fix it. Covers PRV failure, mineral buildup, supply-line leaks, municipal pressure, and when to call a plumber.
- Troubleshooting
Running Toilet: How to Diagnose and Fix It
Why your toilet won't stop running and how to fix it. Covers flapper, fill valve, float, and flush valve seat diagnosis with step-by-step repair.
- Troubleshooting
Clogged Drain: DIY Fix or Call a Plumber
How to unclog a sink, tub, or floor drain yourself — and when a clog signals something the plunger won't fix. DIY methods and when to call a plumber.
- Troubleshooting
Hydro Jetting: When Snaking Isn't Enough
When a drain snake fails and you need hydro jetting — how it works, what it costs, and when it is the right choice for residential drain cleaning.
- Repair vs Replace
Hydro Jetting Cost: What to Expect
Hydro jetting costs $350–$900 for residential applications. Covers cost by application, market, and pipe condition — and when it's worth it.
- Troubleshooting
Sump Pump Failing: Signs and Next Steps
How to tell if your sump pump is failing before it fails completely. Warning signs, DIY tests, and when to call a plumber for repair or replacement.
- Repair vs Replace
Sump Pump Repair vs. Replacement: Costs
When sump pump repair makes sense vs. replacement. Covers repair costs, age thresholds, battery backup decisions, and total cost of ownership.
- Troubleshooting
Sump Pump Repair Cost: Repair vs Replace
Sump pump repair costs $100–$350 for component fixes. Full replacement runs $300–$700 installed. Covers float switch, check valve, and battery backup.
- Troubleshooting
Garbage Disposal Not Working: How to Fix
Garbage disposal humming, completely dead, or leaking? Covers reset button, jam clearing, common failures, and when repair beats replacement.
- Repair vs Replace
Garbage Disposal: Repair vs. Replacement
When to repair a garbage disposal vs. replace it. Covers repair cost thresholds, age-based decisions, HP sizing, and what a plumber installs that lasts.
- Troubleshooting
Garbage Disposal Repair Cost
Garbage disposal repair costs $75–$200 for most service calls. Full disposal replacement runs $250–$650 installed. BLS and BuildZoom sourced.
- Troubleshooting
Dripping Faucet: Diagnose and Fix
A dripping faucet wastes 1,000–5,000 gallons per year. Covers cartridge, ball, and ceramic-disc faucet repair — and when replacement is smarter.
- Repair vs Replace
Faucet Repair vs. Replacement: Costs
Repair a leaking faucet or replace it? Covers cost thresholds, age factors, and when a plumber should make the call — not the homeowner.
- Troubleshooting
Faucet Repair Cost: Drips, Leaks, and More
Faucet repair costs $100–$250 for a dripping or leaking faucet. New faucet installation runs $150–$700 depending on type and location. BLS sourced.
- Troubleshooting
Toilet Repair Cost: What Plumbers Charge
Toilet repair costs $75–$350 for most fixes — flapper, fill valve, wax ring. Full toilet replacement runs $300–$800 installed. BLS and BuildZoom sourced.
- Troubleshooting
Water Heater Repair Cost: What to Expect
Water heater repair costs $75–$300 for component fixes — thermostat, element, anode rod, T&P valve — versus $700+ for full replacement.
- How-To
Water Softener Installation Cost
Water softener installation costs $800–$3,000 for a whole-house system. Covers unit types, sizing by hardness, salt vs. salt-free, and labor by market.
- Troubleshooting
Hard Water Damage to Pipes and Water Heaters
How dissolved calcium and magnesium destroy pipes, water heaters, and fixtures — and the repair-vs-prevention math for hard-water markets.
- How-To
Frozen Pipe Prevention: What Actually Works
Which pipes freeze first, at what temperatures, and the prevention methods that protect them — with frost line depth context for major US markets.