Skimmer Equipment /
How to Replace a Pool Skimmer: Planning and Knowing When to Call a Pro
Replacing a pool skimmer starts with identifying the failed part, checking compatibility, and deciding whether the housing, throat, lid, or plumbing needs professional replacement.
Archive date: this article was written for PoolSkimmer on Oct 7, 2026 and given the earlier archive date of Nov 7, 2025 so the blog reads as an organized archive. It was not published on that date.
Confirm the nature of the failure first
There is no point in tearing out a pool skimmer if you have not made a proper diagnosis. Many of the issues that prompt a call for replacement are nothing more than a cracked lid, a leak at the pipe, or a worn basket and weir; the skimmer body itself is often fine.
Check for any of these indicators:
- Cracks in the housing or throat
- Water leaking from behind the wall or around the unit
- Air being pulled into the line at the opening
- A basket that will not sit flush
- Any rust or shifting on the deck or wall
Turn the pump off before you get to the basket area and put on your gloves and eye protection as per the equipment manual. Never put your hands in operating suction equipment.
Part swap or full replacement?
In most cases a part swap is sufficient. If it is the gasket, faceplate, or lid that has given way, replace only what is necessary.
You will be looking at a more involved job with a complete skimmer replacement if the body is cracked, the box has come away from the pool wall, or the plumbing has collapsed. It could also be that the old skimmer is simply too difficult to match with anything new. Compatibility is key in both inground and aboveground pools; the new unit has to work with your existing model, the wall, and the equipment connections. With an older pool, it is wise to have photos and details on the old faceplate and basket on hand so a pro can verify the fit.
Do some planning ahead of time
Replacing a skimmer can have implications for the waterproofing, the deck and the plumbing. A little forethought will prevent damage and ensure you do not end up with the wrong part in hand.
Make note of the model number and see how cleanly the skimmer abuts the pool wall. Look for any movement or concealed leaks. Find out if your locality requires permits or an inspection and get a written quote from a contractor that itemizes labor, parts and any structural work. In the case of an embedded box or a concrete/vinyl pool, the process is rarely as straightforward as changing a part.
Leave it to a professional when warranted
If there is any question of compatibility, or if you are dealing with plumbing and electrical matters near the pool equipment, a qualified pool professional should be the one doing the work. This goes for skimmers set in concrete where the wall might be compromised during removal.
Seek assistance if the water is going down fast, the skimmer area is unstable, or you notice cracking in the coping or shell. An odd noise from the pump after skimmer trouble is another reason to call in help. And under no circumstances should one swim in the water if there are electrical faults or safety concerns.
Pitfalls to steer clear of
It is easy for a homeowner to force a universal fit or go after the wrong component. Some common errors include:
- Tearing out parts without pinning down the source of the leak
- Reaching for the basket while the pump is on
- Overlooking a leak hidden behind the wall
- Putting back in a seal or piece that is already damaged
- Treating all skimmers as though they are the same
The way forward
To replace a pool skimmer, first zero in on what is broken. Determine if the problem is confined to the basket, weir or lid, or if the entire body and its plumbing are at issue. When in doubt, or if the job is of a structural nature, have a professional come by for an evaluation and a quote before any work is done.