Faucet leaks and malfunctions can often be resolved by replacing parts or the entire unit. While DIY replacement is possible if you follow the correct procedures, the required tools and precautions vary depending on the faucet type.
This article provides comprehensive coverage of faucet replacement methods by type, including required tools, cost estimates, and important considerations for rental properties.
What Types of Faucets Are There?
Faucets come in several types depending on installation location and purpose, with varying difficulty levels for replacement. First, identify which type of faucet is installed.
Single-Handle Faucet (Standalone)
Commonly used for washing machines and outdoor applications, this type supplies either cold or hot water only. With a simple structure and wide compatibility, installation is relatively straightforward.
Deck-Mounted Single-Hole
Frequently found in kitchen sinks and bathroom vanities, with both hot and cold water lines connected through one hole. Standard mounting hole sizes are 35mm for bathroom sinks and 33-39mm for kitchens. While cross-brand compatibility is possible with matching diameters, note that pop-up drain rod hole positions vary by manufacturer.
Deck-Mounted Two-Hole (Deck Type)
Commonly installed on bathtub rims, vanities, and kitchen counters, with separate holes for hot and cold water connections. Standard spacing is 203mm for kitchen faucets and 102mm for mini-kitchens and bathroom vanities. Upgrading from two-handle to single-lever is also possible.
Wall-Mounted Two-Hole
A wall-mounted type common in bathrooms and kitchen sinks. Most models are compatible if water pipe spacing falls within the 105-225mm range, and installation is relatively easy since you don't need to work underneath like with deck-mounted types.
Combination Type
Common in bathroom vanities, this type has separate control and spout components. Also called a shampoo faucet. Note that it's not compatible with standard two-hole products.
What Tools Are Needed for Faucet Replacement?
To perform DIY faucet replacement, gather the following tools:
Plumber's Tape (Teflon Tape)
Wrap around water pipe connections to prevent leaks. If dirt or rust is present, water can leak through gaps in the seal, so wrap cleanly in a clockwise direction about 15 times.
Hex Wrench (Allen Key)
Used to install and remove faucet parts on deck-mounted types. Sizes vary by product.
Adjustable Wrench (Monkey Wrench)
A tool that can handle multiple sizes of bolts and nuts. Be careful not to damage nuts by applying excessive force.
Water Pump Pliers
A tool for securing plumbing nuts, featuring an angled opening that makes turning nuts easier.
Phillips & Flathead Screwdrivers
Standard household screwdrivers are sufficient. The flathead screwdriver is used for opening and closing shut-off valves.
Bucket, Rags & Flashlight
Necessary for handling residual water in supply hoses and working in dark spaces. Having several rags and a bucket will make the job go smoothly.
What Is the Cost of Faucet Replacement?
Hiring a professional costs at least around $300, while DIY requires only the faucet unit plus tool costs.
Hiring a Professional
Installation fees typically range from $100-150, but total costs vary significantly based on the faucet price. High-performance faucets can bring the total to over $700.
DIY Installation
Since no labor costs are involved, you only need the faucet unit (approximately $60-180) and tools (under $50). However, improper installation carries risks of water leaks and equipment damage, so if you're not confident in your abilities, hiring a professional is the safer option.
How Do You Replace a Kitchen Faucet?
Kitchen faucet replacement procedures are explained by type.
Wall-Mounted Type Replacement Steps
Close the shut-off valve and drain residual water, then use an adjustable wrench to remove the old faucet and mounting legs. After cleaning around the water supply holes, wrap plumber's tape clockwise 10-15 times around the mounting legs and install them slightly loose. Mount the new faucet horizontally, open the shut-off valve, and check for leaks to complete the installation.
Deck-Mounted Single-Hole Type Replacement Steps
Close the shut-off valves under the sink, remove the adapter and nut from the old faucet, and pull out the faucet. After wiping away dirt, install the new base plate and faucet, then connect the adapter, check valves, and supply hoses. Confirm hot and cold markings when connecting, then open the shut-off valves to verify proper operation.
Deck-Mounted Two-Hole Type Replacement Steps
The basic procedure is similar to single-hole installation. When installing the new faucet, secure it firmly with gasket, washer, and nut in that order, and verify that no old gaskets remain.
How Do You Replace a Bathroom Vanity Faucet?
Bathroom vanity faucets come in two types: single-hole and two-hole.
Single-Hole Installation
Close the shut-off valve and remove the old faucet by turning counterclockwise. Clean the threads and pipe interior, wrap plumber's tape 5-10 times, then install the new faucet by turning clockwise. Check for level by hand, then tighten with an adjustable wrench. Open the shut-off valve and check for leaks.
Two-Hole Installation
After closing shut-off valves, remove nuts from hot and cold supply lines and the old faucet nuts. Install the new faucet with gasket, washer, and nut in that order, then secure with the top-mount adapter. Open the shut-off valves to verify completion.
What Should You Be Careful About When Replacing Faucets in Rental Properties?
In rental properties, the landlord owns the faucet, so always consult before replacement.
Consult Your Landlord or Property Manager First
For issues caused by normal wear and tear, property managers or landlords often cover the replacement costs. If damage is due to tenant negligence, tenants bear the cost. With well-managed properties, plumbing issues are typically handled smoothly.
For Condominiums
Replacement is often possible at your own expense, but it's advisable to confirm with the property manager or owner for peace of mind.
What Are the Precautions for DIY Faucet Replacement?
Understanding the following precautions in advance can help prevent problems.
Measure Diameter and Hole Spacing
Purchasing a new faucet without measuring may result in incompatibility. Standard single faucet inner diameter is 13mm, and wall-mounted mixer faucet spacing is typically 105-225mm.
Foreign-Made Faucets Have Different Standards
Foreign-made faucets often don't match Japanese standards and are likely incompatible. Forcing installation can cause additional problems.
Find a Professional for Emergencies
In case problems arise during DIY work, locate a nearby plumber in advance.
Check Drain Stopper Type
For bathroom vanity replacements, compatible faucets vary depending on drain stopper type: push-button, pop-up, or rubber stopper.
Hire a Professional for Old Plumbing
If your building is over 20 years old and plumbing has never been replaced, avoid DIY replacement. Old pipes are brittle and carry risks of water line damage.
What Are the Key Points When Hiring a Professional for Faucet Replacement?
To choose a trustworthy professional, check the following points:
Verify Experience and Reviews
Choose professionals by checking repair volume, customer satisfaction, and social media reviews.
Confirm Pricing Structure
In addition to base fees, check for additional charges. Transparent pricing is also an indicator of a trustworthy professional.
Verify the Technician
Professionals who display photos of their technicians on websites or blogs provide added reassurance.
Confirm After-Service Support
Warranty coverage is especially important. Choosing professionals with warranties helps minimize additional costs in case of problems.
Frequently Asked Questions (FAQ)
What happens if you replace a faucet in a rental property without permission?
Since the landlord owns the faucet, unauthorized replacement may constitute a contract violation. You may be required to restore it to original condition when moving out, so always consult beforehand.
How long does faucet replacement take?
For DIY, wall-mounted types typically take 30 minutes to 1 hour, while deck-mounted types take 1-2 hours. Professional installation also usually takes 30 minutes to 1 hour.
What is the lifespan of a faucet?
Faucet lifespan is generally 10-15 years. Consider replacement when symptoms like leaks, stiff handles, or unusual noises begin to appear.
What should you do if a leak won't stop after faucet replacement?
Close the shut-off valve for emergency response and contact a professional. The cause is often improper plumber's tape application or gasket issues, but there may also be plumbing problems, so avoid attempting repairs yourself.
