Pre-Move-In Plumbing Guide

What to Check Before Living in an Older Home

Why Plumbing Comes First

Plumbing problems are the most common hidden risks in older homes, and they often stay invisible until major damage occurs. Aging valves, worn seals, and deteriorating pipes can leak quietly behind walls or inside cabinets. Before you move in, addressing plumbing ensures you avoid mold, rot, and unexpected repair costs. A careful inspection upfront protects both your home and your budget.

The Most Common Issues in Older Plumbing Systems

Older homes share predictable plumbing challenges that appear regardless of age. Typical issues include:

• Pinhole leaks in copper pipes and internal corrosion in galvanized pipes.
• Slow or clogged drains caused by buildup inside older plumbing lines.
• Worn or stuck valves that no longer shut off water safely.
• Leaky traps and joints under sinks, vanities, and shower connections.
• Failing waterproofing, such as cracked grout or missing silicone around wet areas.

These problems often start small, but become expensive once water penetrates walls or cabin

What Should Do Before Moving In

A few simple checks can prevent most common plumbing failures. Before settling in:

•Run all faucets and drains at full power to test for slow flow, leaks, or noises.
•Replace all supply hoses (toilets, faucets, dishwasher, fridge, laundry) with braided stainless steel.
•Inspect every cabinet, especially under sinks, for moisture stains, swelling, or soft wood.
•Re-seal tubs, showers, and sinks with fresh silicone to prevent hidden water intrusion.
•Test toilet stability and mechanisms to ensure no leaks at the base or from the tank.

These steps take little time but dramatically reduce move-in plumbing risks.

What a Plumber Should Professionally Inspect

Licensed plumber should verify system integrity before you occupy the home. Key tasks include:

•Whole-house water pressure testing to identify hidden leaks or weak points in the system.
•Inspection of exposed piping, looking for corrosion, aging joints, or incompatible materials.
•Evaluation of drain lines for early deterioration, partial blockages, or past repairs.
•Full water heater assessment, including age, sediment buildup, venting, and signs of corrosion.

Professional inspection helps detect deeper issues that are not visible during routine walkthroughs.

Why Plumbing Should Be Your First Pre-Move-In Priority

Focus on replacing aging hoses and valves, confirming leak-free drains, refreshing waterproofing, and ensuring the water heater and pipes are in good condition. A brief pre-move-in visit from a plumber costs far less than repairing hidden water damage later. By addressing plumbing first, you create a safe, dry, and reliable foundation before making any cosmetic upgrades to your new home.

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