Pool Skimmer Repair
The skimmer is where the pool structure, the plumbing and the deck all meet, which is precisely why it is one of the most common leak points on any pool.
Why skimmers leak so often
A skimmer is a plastic box cast into a concrete shell, connected to buried plumbing, and surrounded by a concrete deck. Four materials with four different rates of thermal and structural movement, all meeting at one point.
Over decades that junction works loose. The most common failure is a crack or separation where the skimmer throat meets the pool wall — and because it sits right at the waterline, it produces exactly the symptom people notice: the level drops and then stops at the skimmer mouth.
Common problems
Cracked throat
A crack where the skimmer meets the pool wall. The most common skimmer leak, and often repairable with an epoxy or a throat repair kit.
Cracked body
The plastic housing itself has split, usually from freeze damage or ground movement. Generally needs replacement.
Failed weir door
The floating flap that holds debris in. Cheap to replace and it makes a real difference to skimming performance.
Broken basket or lid
Trivial parts, but a missing lid is a genuine trip and injury hazard.
Poor skimming
Usually water level rather than the skimmer — too high and debris floats past, too low and it draws air.
Equalizer line problems
The secondary line that prevents air ingestion if the level drops. A leak here is easy to miss.
What it costs
| Work | Cost | Notes |
|---|---|---|
| Weir door replacement | $30–$120 | Often a DIY part |
| Basket and lid | $25–$100 | DIY |
| Throat crack repair | $300–$800 | Epoxy or repair kit; pool level lowered |
| Skimmer reseal | $300–$900 | Where the leak is at the junction |
| Full skimmer replacement | $1,200–$3,000 | Requires cutting deck and shell |
| Deck reinstatement | $400–$1,200 | After a full replacement |
| Equalizer line repair | $400–$1,200 | Depends on access |
Full replacement is a real project
Replacing a skimmer body is not a swap. The unit is cast into the pool shell with the deck poured around it, so replacement means cutting the deck, breaking out the surrounding concrete, fitting the new skimmer, re-plumbing, patching the shell and reinstating the deck.
That is why throat repairs and reseals are attempted first wherever they are viable — and why, if the pool is due for resurfacing, doing the skimmer at the same time is dramatically cheaper than as a standalone job.
Getting skimming right
- Keep the water at mid-skimmer. Roughly halfway up the skimmer opening. Too high and debris floats past; too low and the pump draws air.
- Empty the basket regularly. A full basket stops skimming and starves the pump.
- Check the weir door moves freely. A stuck or missing weir dramatically reduces skimming effectiveness for a $30 part.
- Do not run the pool low. Repeatedly dropping below the skimmer damages the pump seal and can burn out the motor.
- Watch for cracking at the throat. Catching it early is the difference between a $400 repair and a $2,000 one.
What this project needs measured
Measurements are only requested when they change the price of the work you selected. Everything below is collected inside the estimator — you can enter dimensions you already know or measure as you go.
Required
No measurement required
This project is diagnosed from symptoms and equipment details rather than dimensions.
What the estimator will ask you
- What you are seeing — cracking, leaking, poor skimming
- How many skimmers the pool has
- Whether the water level stabilises at the skimmer mouth
- Whether the weir door moves freely
- Pool construction type
- Photos of the skimmer, inside and out
How to read a PoolSavr estimate
- Step 1
Instant estimate
Based on your project selections and general pricing assumptions. Useful for deciding whether a project is realistic.
- Step 2
Measured estimate
Uses your pool, spa, or deck dimensions to price the work against the areas actually being resurfaced, tiled, or replaced.
- Step 3
Contractor proposal
Prepared by a licensed professional after inspecting the site. This is the only number that becomes a contract.
PoolSavr is an estimating and matching platform. We do not perform pool work ourselves — licensed local professionals do. Contractors pay PoolSavr for qualified project leads, which is how the estimating tools stay free for homeowners. A PoolSavr estimate is a planning range, never a guaranteed quote — read thefull estimate disclaimer.
Frequently asked questions
- How do I know if my skimmer is leaking?
- The classic sign is water dropping to the level of the skimmer opening and then stopping. Water above that level escapes through the skimmer; below it, there is nothing left to leak. That observation alone usually identifies it.
- How much does skimmer repair cost?
- A throat crack repair or reseal runs $300–$900. Full skimmer replacement is $1,200–$3,000 plus $400–$1,200 for deck reinstatement, because the skimmer is cast into the shell with the deck poured around it.
- Can a cracked skimmer be repaired?
- Often, yes. Cracks at the throat where the skimmer meets the pool wall can usually be repaired with epoxy or a purpose-made repair kit. A crack through the plastic body itself generally means replacement.
- Why is my skimmer not picking up debris?
- Usually the water level rather than the skimmer. Aim for roughly halfway up the skimmer opening. Also check that the basket is not full and that the weir door swings freely — a stuck weir badly reduces skimming for the sake of a $30 part.
- Should I replace the skimmer during a remodel?
- If it is cracked or leaking, definitely. Replacement requires cutting the deck and breaking out shell concrete, all of which is far cheaper when the pool is already drained and the deck is in scope anyway.
Ready to see what your project costs?
Start with the work you are considering. You will get a preliminary range before anyone asks for your phone number, and you decide whether to request a contractor review at the end.