Pipe Repairs
Guides on pipe: stopping a leak now, repairing it properly afterwards, and choosing what to run when a section has to be replaced. You will find emergency steps for a burst or pinhole leak, how to find and shut the main, thawing and preventing frozen pipe, water hammer, galvanized pipe and when it has to go, and the material comparisons homeowners keep asking about — PEX against copper against CPVC, PEX-A against PEX-B, crimp against clamp, push-to-connect against compression. Sump pumps and backup pumps, outdoor spigots and seasonal checklists sit here as well, along with the cost articles for repipes and repairs.
Picks are made from hands-on trade experience: which fittings, valves and pumps hold up in real houses and which ones cause callbacks, checked against manufacturer specifications and plumbing code. No manufacturer pays to appear here. Some links are affiliate links, mostly to Amazon, and the site may earn a commission if you buy through one, at no extra cost to you.
Type K vs Type L Copper Pipe: Which One Do You Need
Type K and Type L are the same copper tube in two wall thicknesses. A licensed plumber on what the extra wall buys, what it costs, and which to buy.
Read more: Type K vs Type L Copper Pipe: Which One Do You Need
CPVC vs PVC Pipe: What Each One Is Rated For
CPVC vs PVC pipe from a licensed plumber: the published temperature ratings, why the fittings do not interchange, and which cement bonds which.
How to Remove a Stuck Compression Ferrule From Copper
A stuck compression ferrule is swaged on, not corroded on. When to cut the stub, when to use a sleeve puller, and how to split one without ruining the tube.
Read more: How to Remove a Stuck Compression Ferrule From Copper
Compression Ferrule Sizing: Match the Tube, Not the Pipe
A compression fitting is sized by tube outside diameter, so 1/2-inch copper takes a 5/8-inch ferrule. Plus brass vs plastic, and why they are single-use.
Read more: Compression Ferrule Sizing: Match the Tube, Not the Pipe
What Is a Wet Vent? The Rules That Make It Legal
One pipe, two jobs: how a wet vent legally drains one fixture while venting another — the three conditions people break, and the sizing table that is not optional.
Air Admittance Valve vs Vent: When an AAV Is Allowed
An AAV supplements your venting — it can never replace it. The code heights that fail inspections, and why you must ask locally.
Read more: Air Admittance Valve vs Vent: When an AAV Is Allowed
Dielectric Union vs Brass Nipple: Connecting Copper to Galvanized
The codes name the dielectric union — but it is also a known leak point. A licensed plumber on which transition actually lasts.
Read more: Dielectric Union vs Brass Nipple: Connecting Copper to Galvanized
Ball Valve vs Gate Valve: Which Shut-Off Should You Install?
A licensed plumber on why gate valves seize shut, the full-port spec that matters on a main, and why neither valve belongs half-open.
Read more: Ball Valve vs Gate Valve: Which Shut-Off Should You Install?
PVC vs ABS Pipe: Which Drain Pipe Should You Use?
Both are code-recognized DWV pipe with their own ASTM specs. A licensed plumber on what actually decides it, why ABS glues in one step, and the transition you must never glue.
Read more: PVC vs ABS Pipe: Which Drain Pipe Should You Use?
PEX Crimp vs Clamp: Which Should You Actually Use?
Copper crimp rings (ASTM F1807) and stainless cinch clamps (ASTM F2098) both make code-approved PEX joints. A licensed plumber on the tooling, the verification difference, and which to buy.
Read more: PEX Crimp vs Clamp: Which Should You Actually Use?
PEX-A vs PEX-B: Which Should You Actually Buy? (Plumber’s Answer)
PEX-A and PEX-B both meet ASTM F876 and both are potable-certified. The real difference is the fitting system — and it decides your tooling cost and how much bore you keep. A licensed plumber breaks down which to buy.
Read more: PEX-A vs PEX-B: Which Should You Actually Buy? (Plumber’s Answer)
Type L vs Type M Copper Pipe: Which Should You Actually Use?
Type L and Type M copper have the same outside diameter and use identical fittings — only the wall thickness differs. A licensed plumber on where Type M is fine, where it never is, and what code actually says.
Read more: Type L vs Type M Copper Pipe: Which Should You Actually Use?
How to Winterize Outdoor Faucets — and the Covers That Actually Work (Plumber’s Checklist)
A licensed plumber’s 15-minute fall checklist: disconnect, drain, cover. Which outdoor faucet covers work, why frost-free sillcocks still burst, and what to do if a pipe splits anyway.
Cost to Install a Sump Pump (2026 Plumber’s Guide)
What a sump pump really costs to install in 2026 – by pump type, labor vs. equipment, battery backup, and DIY vs. pro. A licensed plumber’s honest breakdown.
Read more: Cost to Install a Sump Pump (2026 Plumber’s Guide)
What Actually Keeps Your Basement Dry When the Power Dies (Battery vs. Water-Powered Backup)
A licensed plumber’s honest decision guide: battery backup vs water-powered sump backup — runtime limits owners learn the hard way, the insurance endorsement nobody buys, and the 5-minute monthly test.
Kitchen Sink Leaking Underneath? Causes & Fixes
Water under your kitchen sink? A licensed plumber’s step-by-step diagnosis — drain side vs. supply side — and the fix for slip nuts, P-traps, basket strainers, supply lines, and sneaky above-the-trap leaks.
Spring Plumbing Checklist: 10 Things to Check After Winter
Plumbing Picks is reader-supported. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. Spring is the plumbing season nobody thinks about, and that is exactly why it matters. Winter quietly stresses your pipes, freezing, expansion, ground shifting, and the damage often does not show until you turn things back…
Read more: Spring Plumbing Checklist: 10 Things to Check After Winter
Should You Replace Galvanized Pipes? Signs, Risks & Cost
If your home was built before the 1960s and still has its original water pipes, there is a good chance they are galvanized steel, and a good chance they are nearing the end of the road. Galvanized pipe was the standard for decades, and wherever it meets copper you also need the right dielectric transition…
Read more: Should You Replace Galvanized Pipes? Signs, Risks & Cost
Pinhole Leak in a Copper Pipe: Temporary Fix vs. Real Repair
Heads up: some links on this page are Amazon affiliate links — you pay no more, and as an Amazon Associate we earn from qualifying purchases. A fine spray, a steady drip, or a green-blue crusty stain on a copper pipe usually means a pinhole leak, a tiny hole eaten through the pipe wall from…
Read more: Pinhole Leak in a Copper Pipe: Temporary Fix vs. Real Repair
Outdoor Faucet Leaking? Frost-Free Spigot Fix
An outdoor faucet — a hose bib or frost-free sillcock — almost always leaks from one of three places, and where it leaks tells you exactly what to fix. This is a spring and summer job I get called for constantly, and most of it is a few-dollar washer you can swap yourself. Now’s the…
Summer Plumbing Checklist (Homeowner Guide)
Most plumbing advice is about winter, but summer puts its own load on a house – heavy storms, sprinkler systems, vacations, and constant outdoor water use. As a licensed plumber, here is the short seasonal checklist I run on my own house every summer. None of it takes long, and each item heads off a…
Sump Pump Not Working? A Plumber’s Troubleshooting Guide
Sump pump dead, running nonstop, or not pumping? A licensed plumber walks through the checks, from the float switch to the check valve, before it floods.
Read more: Sump Pump Not Working? A Plumber’s Troubleshooting Guide
Why Are My Pipes Banging? Water Hammer Causes & Fixes
Banging pipes when the water shuts off is water hammer. A licensed plumber explains the free fix, when you need an arrestor, and what else makes pipes noisy.
Read more: Why Are My Pipes Banging? Water Hammer Causes & Fixes
How to Thaw a Frozen Pipe Safely (and Prevent It)
A frozen pipe can burst fast. A licensed plumber shows the safe way to thaw it, the one method that starts fires, and how to keep pipes from freezing again.
Read more: How to Thaw a Frozen Pipe Safely (and Prevent It)
Cost to Repipe a House in 2026 (PEX vs Copper, Real Numbers)
What it really costs to repipe a house in 2026 — PEX vs copper, whole-home vs partial — and how to tell whether you genuinely need it, from a licensed plumber.
Read more: Cost to Repipe a House in 2026 (PEX vs Copper, Real Numbers)
How to Shut Off Your Water Main (and Find Every Shut-Off Before an Emergency)
The 90-second skill that turns a burst pipe from a disaster into a mop-up. A licensed plumber shows you where every shut-off is and how to use it.
Read more: How to Shut Off Your Water Main (and Find Every Shut-Off Before an Emergency)
How to Replace a Water Heater: A Plumber’s Step-by-Step Guide (and When to Call a Pro)
A licensed plumber’s honest, step-by-step guide to replacing a water heater – the tools, the real process, the safety steps people skip, and when it’s smarter to call a pro.
Read more: How to Replace a Water Heater: A Plumber’s Step-by-Step Guide (and When to Call a Pro)
Best Sump Pump Battery Backups in 2026 (Plumber-Picked)
A licensed plumber’s picks for the best sump pump battery backups in 2026 — keep your basement dry during the storms and power outages when your main pump quits.
Read more: Best Sump Pump Battery Backups in 2026 (Plumber-Picked)
Best Sump Pumps in 2026 to Keep Your Basement Dry (Plumber’s Picks)
A licensed plumber’s picks for the best sump pumps in 2026 — cast-iron Zoeller and high-capacity Wayne units that keep basements dry through heavy rain.
Read more: Best Sump Pumps in 2026 to Keep Your Basement Dry (Plumber’s Picks)
PEX vs Copper vs CPVC: Which Pipe Should You Use? (Plumber’s Verdict)
PEX vs Copper vs CPVC: a licensed plumber compares cost, durability, and ease of use — which to choose for your job and the mistakes that cause leaks.
Read more: PEX vs Copper vs CPVC: Which Pipe Should You Use? (Plumber’s Verdict)
Winterize Your Plumbing: A Licensed Plumber’s Cold-Weather Checklist
New to this? Start with our complete guide: Emergency Pipe Repair: How to Stop a Leaking Pipe. Quick answer: To winterize your plumbing and prevent frozen pipes: disconnect and drain garden hoses, insulate exposed pipes, cover outdoor faucets, seal drafts near plumbing, and on freezing nights let a faucet drip and open cabinet doors under…
Read more: Winterize Your Plumbing: A Licensed Plumber’s Cold-Weather Checklist
How Much Does It Cost to Replace a Water Heater? (2026 Plumber’s Breakdown)
New to this? Start with our complete guide: How to Replace a Water Heater: A Plumber’s Step-by-Step Guide. Quick answer: Replacing a standard tank water heater costs about $1,200–$2,500 installed (unit $400–$900 + labor $600–$1,500). Tankless runs $2,500–$5,000+ installed. The unit itself is cheaper than the install — most of the cost is labor, permits,…
Read more: How Much Does It Cost to Replace a Water Heater? (2026 Plumber’s Breakdown)
Compression vs Push-to-Connect Shut-Off Valves: Which Should You Use?
Compression vs Push to Connect Valves: a licensed plumber compares cost, durability, and ease of use — which to choose for your job and the mistakes that…
Read more: Compression vs Push-to-Connect Shut-Off Valves: Which Should You Use?
How Much Does It Cost to Fix a Burst or Leaking Pipe? (2026 Guide)
New to this? Start with our complete guide: Emergency Pipe Repair: How to Stop a Leaking Pipe. Quick answer: A small DIY pipe repair costs $10–$40 (repair clamp + a push-to-connect fitting). A plumber charges $150–$600+ depending on access and damage. An emergency or in-wall burst can run into the thousands once water damage is…
Read more: How Much Does It Cost to Fix a Burst or Leaking Pipe? (2026 Guide)
Emergency Pipe Repair: How to Stop a Leaking Pipe (Licensed Plumber’s Guide)
How to stop a leaking pipe: a licensed plumber’s step-by-step guide — the tools you need, what to avoid, and when to call a pro.
Read more: Emergency Pipe Repair: How to Stop a Leaking Pipe (Licensed Plumber’s Guide)
SharkBite vs Soldered Copper: Which Should You Use? (A Plumber’s Verdict)
SharkBite push-fit vs soldered copper: a licensed plumber’s honest take on which to use where, real costs, durability, and the mistakes that cause leaks.
Read more: SharkBite vs Soldered Copper: Which Should You Use? (A Plumber’s Verdict)
Best Frost-Free Outdoor Spigots (Sillcock Replacements) in 2026
A burst outdoor spigot can flood a wall before you notice. Here are the best frost-free sillcocks to replace an old hose bibb.
Read more: Best Frost-Free Outdoor Spigots (Sillcock Replacements) in 2026
Best Under-Sink Shut-Off Valves & Angle Stops in 2026 (Plumber-Picked)
A failing angle stop turns a simple faucet swap into a flood. Here are the best under-sink shut-off valves a homeowner can install themselves.
Read more: Best Under-Sink Shut-Off Valves & Angle Stops in 2026 (Plumber-Picked)
Best Water Hammer Arrestors in 2026 (Stop Banging Pipes)
A licensed plumber’s picks for the best water hammer arrestor — what actually holds up, what to skip, and how to choose.
Read more: Best Water Hammer Arrestors in 2026 (Stop Banging Pipes)
Best P-Trap Replacements for Kitchen and Bathroom Sinks in 2026
A licensed plumber’s picks for the best p trap — what actually holds up, what to skip, and how to choose.
Read more: Best P-Trap Replacements for Kitchen and Bathroom Sinks in 2026
Best Pipe Repair Clamps in 2026 (Emergency Fix for Leaking Pipes)
A licensed plumber’s picks for the best pipe repair clamp — what actually holds up, what to skip, and how to choose.
Read more: Best Pipe Repair Clamps in 2026 (Emergency Fix for Leaking Pipes)
Best Push-to-Connect Plumbing Fittings in 2026 (No Soldering Required)
A licensed plumber’s picks for the best push to connect plumbing fittings — what actually holds up, what to skip, and how to choose.
Read more: Best Push-to-Connect Plumbing Fittings in 2026 (No Soldering Required)