Cost to Install a Reverse Osmosis System
Installing a reverse osmosis system means connecting a feed water adapter to the cold-water line, mounting a dedicated faucet, attaching a drain saddle, and routing tubing to the filter assembly and storage tank. It is a moderate DIY project because the under-sink layout, faucet-hole drilling, and leak-free plumbing connections all need careful attention.
Common reasons homeowners do this job
- Adding an under-sink reverse osmosis filtration setup
- Upgrading a kitchen with a dedicated drinking-water faucet
- Replacing a worn or damaged reverse osmosis system
- Updating the sink or countertop layout to accommodate a dedicated faucet
DIY or call a pro?
This can be a DIY project, but consider a professional if drilling into the sink or countertop, fitting the feed water adapter, or connecting the drain saddle feels uncomfortable. Shut off the main water supply fully before starting. Take care when drilling to protect the porcelain and nearby pipes, and verify every connection is secure to avoid water damage under the sink.
Frequently asked questions
- Can I install a reverse osmosis system myself?
- Yes, this is a legitimate DIY job for someone comfortable working under a sink and drilling a faucet hole. Have an adjustable wrench, power drill and drill bits, tubing cutter, screwdriver, and bucket ready. Consider hiring help if the sink material makes drilling uncertain or the cold-water connection differs from the feed adapter.
- What makes reverse osmosis installation cost more?
- The price can rise with the size of the job, labor time, and materials. For a small installation, a minimum or trip charge may also affect the total.
- What should I check before buying or mounting the system?
- Confirm there is enough under-sink space for both the filter assembly and storage tank. Also check the cold-water supply line size for feed-adapter compatibility, choose a suitable faucet location, and make sure the sink tailpiece has clearance for the drain saddle.
- Why does the RO faucet hole need extra care?
- The faucet requires a hole in the sink or countertop, so drilling carelessly can crack porcelain or damage nearby pipes. Plan the faucet location before drilling and use appropriate drill bits.
Have a different situation?
Every home is different. Describe yours to Gable Pro and get a diagnosis, a real cost estimate, and — if you want — a match to a vetted local pro.