Insulated Outdoor Swimming Pool in Cheltenham | Quad-Lock ICF

This outdoor swimming pool project in the Cotswolds, near Cheltenham, used the Quad-Lock insulated concrete formwork (ICF) system to create an insulated pool shell. The design brought together insulation, automated water treatment, efficient circulation and a choice of swimming and hydrotherapy features.

Quad-Lock ICF Pool Construction

The pool was constructed using a Quad-Lock insulated concrete formwork shell, with insulation on both the internal and external faces of the walls. The project also included insulation to the pool floor and pipe runs, helping to limit unwanted heat loss.

For more information about the construction method, see our ICF swimming pool construction guide and our earlier Quad-Lock pool construction project.

Swimming and Wellness Features

Alongside its insulated construction, the outdoor pool included:

An automatic, remote-controlled insulated slatted pool cover
Colour-changing fibre-optic lighting
High-specification stainless steel pool fittings
A counter-current swim jet unit
Twin hydrotherapy water jets

Heating, Filtration and Water Treatment

The project combined several systems intended to support efficient operation and straightforward maintenance:

Automatic chlorine and pH dosing with ozone treatment
A variable-speed IntelliFlo filtration and feature pump
Automatic backwashing and water-feature control using BESGO valves
An air-source heat pump
Solar heating
Water-saving equipment

These features were selected to help manage seasonal running costs. Actual savings depend on how the pool is used, the heating settings, weather conditions and maintenance.

Insulated Outdoor Swimming Pools in Gloucestershire

This Cheltenham-area project illustrates how the pool shell, cover, heating and filtration can be considered together rather than as separate choices. For homeowners planning an outdoor pool, these decisions can make a significant difference to comfort and ongoing operation.

Explore our advice on swimming pool insulation, or contact Pool Build to discuss an outdoor swimming pool project.