When starting to estimate a Desjoyaux pool project, the final budget depends on very concrete parameters: soil type, access to the site, pool dimensions, and level of equipment. For a standard in-ground model, the cost today ranges from approximately 15,000 to 25,000 euros, but this figure can rise significantly with options and site constraints.
How excavation affects the cost of a Desjoyaux pool
Excavation is the item that most affects the total cost of a Desjoyaux project, sometimes by several thousand euros.
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A flat site with easy access for the digger is the ideal scenario. Marking out, digging, and laying the base remain within the initial quote. On a sloped, rocky site, or one with a high water table, the returns vary on this point, but excavation costs can represent a significant portion of the budget.
Three points should be checked before signing: the width of the access for machinery, the nature of the subsoil (clay, rock, fill), and the distance between the pool and the earth disposal point. A narrow access that requires the use of a mini-digger instead of a standard excavator extends the project timeline and the quote. It is recommended to consult the details on the price of a Desjoyaux pool to better calibrate your budget before the first appointment at the dealership.
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Desjoyaux quote for 6×3 m: breaking down the items line by line
For a rectangular pool of 6 x 3 m with a step at the end, a typical detailed quote shows a total of approximately 16,560 euros including tax. This amount includes supply and installation. Here’s how the main items break down:
- Excavation, marking, and base: approximately 2,000 euros excluding tax, which is the initial major work that directly depends on site accessibility.
- Assembly of the structure, reinforcement, and pouring of concrete: approximately 3,800 euros excluding tax, the core of the Desjoyaux modular system.
- Installation of the 75/100 liner, connection of the PFI 180 filtration system, and installation of the steps: these three items total approximately 4,500 euros excluding tax and determine the watertightness and operation of the pool.
- Copings, backfilling, and commissioning: approximately 3,500 euros excluding tax for the finishing touches and initial filling.
The integrated PFI filtration system is a Desjoyaux specialty that eliminates traditional buried pipes. This is a real technical argument: less piping means lower long-term leak risks and simplified maintenance.
This quote does not include a heat pump, a safety cover, or tiled decking. Once these options are added, the budget category changes.
Options and equipment: items that increase the pool budget
A testimony on ForumPiscine.com illustrates the gap well: for a Desjoyaux pool of 7 x 3 m with corner steps, a heat pump, a safety cover, and 21 m² of tiled decking, the quote reached 36,000 euros. We go from simple to double compared to the bare pool.
The options that weigh most heavily in the budget:
- The heat pump: it allows for an extended swimming season but represents a significant investment at purchase and an annual electricity cost.
- The safety cover or roller shutter: mandatory for safety (NF P90-308 standard), this item varies depending on the type of cover chosen.
- High-end decking and copings: upgrading from Classic copings to tiling or natural stone across the entire decking significantly increases the “landscaping” line.
- Automated water treatment (salt electrolyzer, pH regulator): real user comfort, but this is not included in the basic quotes.
Comparing the Desjoyaux “bare pool” quote with a fully equipped quote is the only way to avoid unpleasant surprises. It is advisable to systematically request two estimates: one with the bare minimum and one with the desired options.
Pricing position compared to other types of pools
To place Desjoyaux in the landscape, a complete polyester shell pool measuring 8 x 4 m ranges from 20,000 to 30,000 euros according to La Maison des Travaux. A masonry concrete pool of the same size starts at 35,000 euros and can exceed 60,000 euros.
The Desjoyaux model, with its modular panel structure and integrated filtration, is positioned in a mid-range category. The entry price remains lower than that of poured concrete, but the recent upward trend in materials brings the budgets for good quality polyester shells closer.
Hidden costs after installation: maintenance, taxation, and water
The price displayed on the quote is only part of the actual budget. The annual maintenance of a Desjoyaux pool includes the replacement of the liner (every ten to fifteen years depending on usage), water treatment products, electricity consumption for filtration, and, if applicable, for the heat pump.
Regarding taxation, an in-ground pool constitutes a fixed structure that increases the rental value of the property. The property tax is recalculated accordingly. A prior declaration of works must also be submitted to the town hall, or even a building permit if the pool surface exceeds a certain threshold.
The cost of filling with water and summer restrictions should also be anticipated. Some municipalities limit or prohibit the filling of private pools during drought periods, which can complicate the initial filling if the project ends in the middle of summer.
Before signing, it is beneficial to add up the cost of the pool, the selected options, any additional excavation costs, and an estimate of the maintenance budget over five years. This total over five years provides a more reliable basis for comparison between two competing quotes.