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DIY SWIMMING POOL COSTS EXPLAINED

Building a DIY pool can offer numerous benefits, making it an appealing option for many homeowners. Firstly, it allows for significant cost savings compared to hiring professionals, as can manage labour and materials according to your budget. Additionally, building a pool as a DIY project gives you complete control over the design, size, and features, enabling you to create a personalised oasis suits your family's needs. Finally, the satisfaction of completing project like this can be immensely rewarding, as you enjoy the fruits of your labour for years to come.

To build a DIY swimming pool, you can choose from simpler options like a stock tank or a flat pack metal pool, or more involved projects such as an in-ground block and liner pool. Regardless of the option, you must prioritise safety, proper planning, and an effective filtration system.

 

For any permanent, in-ground installation, hiring a professional for key steps like electrical work is highly recommended.

 

Option 1: DIY stock tank pool

 

For a simple, affordable option, use a galvanised steel stock tank. Gather materials. You will need a stock tank of a suitable size, a pump and filter system, a pool hose kit, a drill, and a sealant.

Choose the location.

Pick a level area near a water source and an electrical outlet for the filter. Ensure the ground is firm enough to support the filled tank.

 

Install the filtration.

Following the pump manufacturer's instructions, drill holes for the filter intake and output fittings. Attach and seal the fittings to ensure they are watertight.

 

Connect and test.

Attach the pump and filter hoses. Before filling completely, add a few inches of water to check for leaks around the fittings.

 

Fill and maintain.

Fill the tank with water and begin running the filter. Use basic pool chemicals to balance the water and keep it clean.

 

Option 2: DIY flat pack timber pool

This above-ground method uses wooden panels to create the pool's structure.

Prepare the base.

Create a perfectly level area for the pool. Arrange the pallets into your desired shape and screw them together to form a sturdy frame.

 

Add support.

Use wood planks to reinforce the pallets and provide a smoother inner surface.

 

Line the pool.

Add a protective layer, such as tarps or old carpeting, inside the frame to shield the liner from screws and splinters. Then, install a waterproof pool liner, securing it neatly over the top edges.

 

Install the filter.

Cut holes and attach a pump and filter system, as described for the stock tank pool. Add the finishing touches. Build a small, simple deck or use pea gravel around the perimeter to finish the look.

 

Option 3: DIY block and liner in-ground pool

 

This is a more permanent and complex option that requires significant time, effort, and potentially professional help for excavation and electrical work.

Plan and prepare

 

Secure permissions and / or party wall agreements.

Check local regulations to see if you need planning permission for an in-ground pool, which is often not required for standard domestic installations.

 

Design and mark.

Create a detailed plan outlining the pool's dimensions and the location of the skimmer, returns, and pump. Mark the area for excavation.

 

Excavate the hole.

Dig the pool's shape and depth using a mechanical excavator. Ensure the ground is level for the foundation.

 

Lay the foundation.

Pour a concrete slab with a steel mesh for reinforcement to form the pool's floor.

 

Build the structure

Construct the walls.

Build up the pool walls with concrete blocks, typically nine courses high. Install a concrete ring beam behind the top of the walls for stability.

 

Add plumbing and electrical.

Install all plumbing for the filter system and any electrical connections for lighting. This electrical work should be done by a qualified electrician to ensure safety.

 

Render the walls.

Apply a layer of cement render to the walls and screed the floor. This provides a smooth, uniform surface for the liner and prevents punctures.

 

Finalise the pool

Install the liner.

Fit the liner lock around the perimeter of the pool. Stretch the heavy-duty vinyl liner over the pool, using a vacuum to remove all air and ensure a smooth, wrinkle-free finish.

 

Finish the surround.

Lay coping stones around the edge of the pool. Finish the area with paving stones or decking.

 

Set up the filter.

Connect and install the pump and filter in a nearby plant room, filling the filter with sand or glass media.

 

Fill and start up.

Fill the pool with water and add the necessary chemicals to balance the water before its first use.

One thing to note is that when you calculate the pricing for construction projects, you have to consider building materials, plant hire, and labour costs. Now while it is difficult to give a firm price without looking at actual site conditions,  and also since the work would be done by yourselves, the guide prices for materials and plant hire costs for good quality concrete pool shells are very rough but are mentioned below.

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GUIDE FOR DIY LINER POOL SHELL & FINISH

Please note that we are estimating long-lasting concrete pool shells finished in heavy-duty full patterned liner with insulating underlay (materials and plant hire only), assuming that all labor is provided by the client.

SMALL POOL 6m X 2.5m = 15 sqm

Excavation & backfilling plant hire £750 per week (max 2 weeks) = £1,500

Floor concrete including steel                 20 sqm @ £100 per sqm = £2,000

Wall concrete including steel                   30 sqm @ £100 per sqm = £3,000

Heavy Duty liner with underlay                   50 sqm @ £60 per sqm = £3,000

TOTAL ......................................................................................................................£9,500   

MEDIUM POOL 8m X 3m = 24 sqm

Excavation & backfilling plant hire £750 per week (max 2 weeks) = £1,500

Floor concrete including steel                 30 sqm @ £100 per sqm = £3,000

Wall concrete including steel                   40 sqm @ £100 per sqm = £4,000

Heavy Duty liner with underlay                   70 sqm @ £60 per sqm = £4,200

TOTAL .....................................................................................................................£12,700

LARGE POOL 10m X 4m = 40 sqm

Excavation & backfilling plant hire £750 per week (max 3 weeks) = £2,250

Floor concrete including steel                  45 sqm @ £100 per sqm = £4,500

Wall concrete including steel                   45 sqm @ £100 per sqm = £4,500

Heavy Duty liner with underlay                    90 sqm @ £60 per sqm = £5,400

TOTAL ......................................................................................................................£16,650

EXTRA LARGE POOL 12m X 5m = 60 sqm

Excavation & backfilling plant hire £750 per week (max 4 weeks) = £3,000

Floor concrete including steel                  70 sqm @ £100 per sqm = £7,000

Wall concrete including steel                   55 sqm @ £100 per sqm = £5,500

Heavy Duty liner with underlay                  125 sqm @ £60 per sqm = £7,500

TOTAL ......................................................................................................................£23,000

*All prices including VAT

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GUIDE FOR DIY TILED POOL SHELL & FINISH

Please note that we are estimating long-lasting concrete pool shells with mesh-based chemical-resistant waterproofing, insulation inside the pool, and glass mosaic tiling (materials and plant hire only), assuming that all labor is provided by the client.

SMALL POOL 6m X 2.5m = 15 sqm

Excavation & backfilling plant hire £750 per week (max 2 weeks) = £1,500

Floor concrete including steel                 20 sqm @ £100 per sqm = £2,000

Wall concrete including steel                   30 sqm @ £100 per sqm = £3,000

Mesh-based waterproofing                         50 sqm @ £40 per sqm = £2,000

50mm pool-grade insulation.                      50 sqm @ £40 per sqm = £2,000

Glass mosaic tiles with adhesive & grout  50 sqm @ £60 per sqm = £3,000

TOTAL .....................................................................................................................£13,500   

MEDIUM POOL 8m X 3m = 24 sqm

Excavation & backfilling plant hire £750 per week (max 2 weeks) = £1,500

Floor concrete including steel                 30 sqm @ £100 per sqm = £3,000

Wall concrete including steel                   40 sqm @ £100 per sqm = £4,000

Mesh-based waterproofing                         70 sqm @ £40 per sqm = £2,800

50mm pool-grade insulation.                      70 sqm @ £40 per sqm = £2,800

Glass mosaic tiles with adhesive & grout  70 sqm @ £60 per sqm = £4,200

TOTAL .....................................................................................................................£18,300

LARGE POOL 10m X 4m = 40 sqm

Excavation & backfilling plant hire £750 per week (max 3 weeks) = £2,250

Floor concrete including steel                  45 sqm @ £100 per sqm = £4,500

Wall concrete including steel                   45 sqm @ £100 per sqm = £4,500

Mesh-based waterproofing                         90 sqm @ £40 per sqm = £3,600

50mm pool-grade insulation.                      90 sqm @ £40 per sqm = £3.600

Glass mosaic tiles with adhesive & grout  90 sqm @ £60 per sqm = £5,400

TOTAL ......................................................................................................................£23,850

EXTRA LARGE POOL 12m X 5m = 60 sqm

Excavation & backfilling plant hire £750 per week (max 4 weeks) = £3,000

Floor concrete including steel                  70 sqm @ £100 per sqm = £7,000

Wall concrete including steel                   55 sqm @ £100 per sqm = £5,500

Mesh-based waterproofing                        125 sqm @ £40 per sqm = £5,000

50mm pool-grade insulation.                     125 sqm @ £40 per sqm = £5,000

Glass mosaic tiles with adhesive & grout 125 sqm @ £60 per sqm = £7,500

TOTAL ......................................................................................................................£33,000

*All prices including VAT

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To get the ball rolling, fill up this form. If you have sketches or drawings, please email them to spaziodesignlondon@gmail.com for a quicker and more comprehensive response.

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