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Splash & Skimmer

Pool Costs

The kit price is the smallest number in the project

Every semi-inground quote that shocks someone shocks them for the same reason: they priced the pool and the job priced the hole.

By Sawyer V., enthusiastLast updated
A freshly dug hole in garden soil

Heads up: we earn a commission if you buy through the links on this page, at no extra cost to you. It never decides the ranking — here is how we pick and here is the full disclosure. Prices are checked automatically; last verified October 8, 2026.

The short version

  • Six line items beyond the kit, and five of them are labor.
  • Drainage is the one people leave out and the one that causes the failures.
  • The barrier moves from optional to necessary, because burying the wall removes it.
  • Three local quotes beat any published average, including any we could write.

Why we will not publish a total

Because the total is mostly excavation, and excavation is the most local cost there is. Two identical kits, one on soft level ground with machine access and one on a clay slope behind a narrow gate, are not the same project and not remotely the same number.

What this page does instead is give you the complete list of lines, so that when you collect quotes you can tell whether a quote is complete. A cheap quote that has left out drainage is not a cheap quote.

The six lines beyond the kit

Everything a semi-inground project contains that a free-standing pool does not.
LineWhat it coversWho prices it
Site accessGetting a machine to the spotContractor — narrow access changes everything
ExcavationDigging to depth, flat and stableContractor, by the hour or the job
Spoil removalThe soil has to go somewhereOften quoted separately, often forgotten
Base preparationSand or crushed stone, compactedContractor
DrainageWater must not collect against the wallContractor — the invisible line
BackfillPlaced in stages as the pool fillsContractor
BarrierA fence, now that the wall is buriedSeparate trade or DIY
Permit and inspectionFar more likely than free-standingYou, before anything is dug
Everything a semi-inground project contains that a free-standing pool does not.

Two of those deserve expanding because they are the two most often missing from a quote.

Spoil removal. A pool-sized hole produces a pool-sized pile of soil, and it weighs a great deal. Either it is going somewhere on your property — which needs a plan and space — or it is being carted away, which is trucks and tipping fees.

Drainage. Water collecting behind a buried wall applies pressure inward and sits against the steel. It is entirely invisible once the job is finished, which is exactly why it gets value-engineered out. Every failure story in this category traces back to it. Our semi-inground roundup covers why the resin coating on both faces of the wall matters for the same reason.

How to get quotes that can be compared

Write the eight lines from the table above on one sheet, and ask each contractor to price against that list rather than giving you a single figure. Three things follow:

You can see what is missing. A quote with no drainage line is not cheaper, it is incomplete.

You can see where they differ. Two quotes usually differ on one or two lines, not uniformly, and that tells you what each contractor is actually worried about.

You get a real total. Which is the number to compare against the alternatives — a free-standing pool from our above-ground pool cost guide, or an inground quote via our above-ground versus inground comparison.

What DIY can and cannot save here

Our DIY versus paying guide is generally enthusiastic about doing pool work yourself. This is the page where it is not.

Sensible to DIY: the barrier, the surround, the plumbing to the pad if you are competent, and all of the ongoing maintenance.

Not sensible: excavation, drainage design and staged backfill. Those three decide whether the pool is still level and the wall still sound in five years, they are invisible once complete, and they are not learnable from a video. The cost of getting them wrong is the whole project.

What the ongoing cost looks like afterwards

Identical to any other vinyl pool of the same volume. The water, the chemicals, the pump hours and the covers are all the same numbers our annual cost guide derives — nothing about being lower in the ground changes the running cost.

Two long-term lines are worth noting. The liner is replaceable and eventually will be, which our liner replacement guide prices. And removal, if it ever happens, is demolition and backfill rather than a take-down — a point our home value guide covers, because permanence cuts both ways.

What to buy

Scores are our own reading of published specifications. They are not test results — we have not tested these products and we do not claim to.

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A sloped yard, or the look of an inground pool

Semi-Inground Pool Kit (52" Resin-Coated Steel Wall)

Various

A steel-wall pool built to be buried partly or almost entirely. It solves a sloped yard properly rather than working around one, and it turns a weekend purchase into an excavation project.

Key specs

Wall
52 in resin-protected steel, coated both sides
Burial
Partial to almost fully submerged, per manufacturer
Liner
Commonly 25-gauge overlap
Skimmer
Widemouth skimmer on most kits
Shapes
Round, oval and rectangular kits available
Install
Excavation, backfill and leveling — trade work

How it scoresour reading of published specs, not a test result

Build
9.0
Setup
3.0
Upkeep
7.5
Running cost
6.0
Value
6.5

Overall 7.0 / 10

What works

  • The only category on this site that genuinely solves a sloping yard
  • Resin-coated steel on both faces resists the rust that ends buried steel walls
  • Sits lower, so it reads as an inground pool without inground pricing
  • Longer expected life than any frame pool, and a replaceable liner

What doesn't

  • Excavation, backfill and drainage are all part of the job and none of it is DIY
  • Burying part of the wall removes the barrier an above-ground wall provides
  • Permits and inspections are more likely than with a free-standing pool
  • Removing it later is a demolition rather than a take-down

Skip it if: Being reversible. A frame pool is a purchase; this is a permanent alteration to the yard, and that is the trade you are making.

What it costs to run: The kit is the smaller half of the number. Excavation, backfill, drainage and the barrier you now need are the other half, and all four are local labor prices — get them quoted before comparing kits.

Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.

Specs from: Wilbar 'Meadows' 12 x 18 oval, 52" resin-protected steel wall — Amazon listing, Royal Swimming Pools — 52" steel wall semi-inground kits

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When the liner has failed, not before

Replacement Above-Ground Pool Liner

Various

The one repair that is genuinely worth doing rather than replacing the whole pool, provided the frame is sound. Measure twice: liner fit is unforgiving.

Key specs

Types
Overlap, beaded and unibead — they are not interchangeable
Measure
Diameter and wall height, exactly
Gauge
Published in mil — thicker lasts longer and is harder to fit

How it scoresour reading of published specs, not a test result

Retention
8.0
Durability
8.0
Handling
5.5
Running cost
9.0
Value
8.0

Overall 7.9 / 10

What works

  • Far cheaper than replacing a pool whose frame is still good
  • A thicker gauge liner outlasts the original on most budget kits
  • Beaded liners can be replaced without dismantling the top rail

What doesn't

  • Overlap, beaded and unibead are different fitting systems and buying the wrong one is a total loss
  • Fitting is a warm-day job — cold vinyl will not stretch into place
  • A liner failure often reveals a frame or base problem that caused it

Skip it if: A pool whose frame is corroded. Replacing the liner in a failing frame just moves the failure a few months out.

What it costs to run: The largest single unplanned expense of above-ground pool ownership, and it is mostly preventable: a ground cloth, a level base and a winter close done properly are what decide whether you ever buy one.

Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.

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A barrier between the yard and the water

Removable Mesh Pool Safety Fence

Various

Sectional mesh panels on stainless pegs that go in without concrete and come out for winter. The only item on this site that does anything about the risk that matters most.

Key specs

Panel height
4 ft is the common residential size
Panel length
Sold in 12 ft and 15 ft sections
Mesh
UV-stabilized, chlorine-resistant, around 320 GSM
Poles
Powder-coated aluminum, roughly 36 in spacing
Fixings
Stainless steel pegs into sleeved ground holes
Certification
Look for ASTM F2286 on the listing

How it scoresour reading of published specs, not a test result

Sizing fit
8.0
Running cost
10.0
Maintenance
8.5
Build
8.0
Value
8.5

Overall 8.6 / 10

What works

  • Removable — the sleeves stay in the ground, the fence does not
  • Mesh is see-through, so a child at the fence is still visible from the house
  • No footings, no concrete, and no permanent change to the yard
  • Sections can be reconfigured if the pool moves or the yard changes

What doesn't

  • Only certain listings state ASTM F2286 compliance, and that is the line worth paying for
  • Needs drilling sleeve holes into whatever surface surrounds the pool
  • A self-closing, self-latching gate is usually a separate purchase
  • Soft ground and sloped lawns both make a taut, secure run harder

Skip it if: Being a substitute for an adult watching. A fence buys time to notice; it does not remove the need to notice.

What it costs to run: Priced per linear foot, so the cost is set by your perimeter, not your pool. Measure the run you actually need to enclose before comparing listings — a 4-sided enclosure and a 3-sided one using the house wall are very different numbers.

Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.

Specs from: Removable mesh pool fences — current Amazon category listing

Questions people actually ask

How much does a semi-inground pool cost?
We will not publish a total, because most of it is excavation and excavation is the most local cost there is. Price the eight lines — access, excavation, spoil removal, base, drainage, backfill, barrier and permit — with three local contractors.
What gets left out of semi-inground pool quotes?
Spoil removal and drainage, most often. A pool-sized hole produces a pool-sized pile of soil that has to go somewhere, and drainage behind the buried wall is invisible once finished — which is exactly why it gets cut.
Can I dig a semi-inground pool myself?
The barrier and the surround, yes. The excavation, drainage design and staged backfill, no — those three decide whether the pool is still level and the wall still sound in five years, and they are invisible once complete.
Is a semi-inground pool more expensive to run?
No. Once it is in, the water, chemicals, pump hours and covers are identical to any other vinyl pool of the same volume. Nothing about being lower in the ground changes the running cost.

Sources