Patio Doors in South Wales – Light, Style & Security

uPVC patio doors remain one of the most popular choices for homeowners who want reliable garden access without overspending. Combining affordability with energy efficiency and modern security, they are perfect for both traditional and new-build South Wales properties.

At Daimant, we supply and install uPVC patio doors, French doors, and sliding patio doors across Caerphilly, Cardiff, and the wider South Wales region. With FENSA-approved installation, PAS 24 security standards, and A+ rated glazing, our doors are designed to keep homes warmer, safer, and more stylish.

Highlights: 

• Supply and installation of uPVC patio doors including sliding and French doors.

• Affordable and low-maintenance compared with timber or aluminium.

• Energy-efficient A+ glazing with weatherproof seals.

• Secure fittings: multi-point locks, PAS 24 compliance.

• Customisable colours, finishes, and glazing options.

• Local expertise across Caerphilly, Cardiff, and South Wales homes.

uPVC patio doors are designed to provide wide, accessible openings to gardens, patios, and conservatories. They are available in two main designs:

• Sliding uPVC Patio Doors – Large glass panels that slide horizontally, ideal for saving space and maximising views.

• uPVC French Doors – Double doors that open outwards or inwards, perfect for smaller homes or traditional-style properties.

Both options use insulated frames and modern glazing, ensuring year-round efficiency and security.

Example: A homeowner in Caerphilly installed a 2-panel sliding patio door to connect their dining room to the garden, while a family in Pontcanna, Cardiff chose French doors for a classic look that matched their sash windows.

How secure are uPVC patio doors?

Security is a common concern with patio doors, but modern uPVC systems offer strong protection:

• Multi-point locking systems securing the door at multiple points.

• PAS 24 certification – meeting UK enhanced security standards.

• Toughened safety glass to resist impacts.

• Anti-lift tracks on sliding doors to prevent forced entry.

South Wales Police reports show that older patio doors with simple latches are common break-in points, while upgraded multi-locking uPVC systems reduce burglary risks significantly.

How energy efficient are uPVC patio doors?

uPVC patio doors are designed to prevent heat loss and draughts:

• A+ rated glazing with argon-filled units and low-emissivity coatings.

• Insulated uPVC frames with multi-chamber construction.

• Weather-resistant seals to block cold air and noise.

According to the Energy Saving Trust, replacing a single-glazed patio door with an A+ rated uPVC system can save £100–£120 per year in energy costs for a typical South Wales semi-detached home.

What design options are available with uPVC patio doors?

Daimant offers a wide range of design customisations:

• Colours & Finishes – classic white, anthracite grey, black, or woodgrain foils.

• Glazing Options – clear, frosted, patterned, or decorative glass.

• Thresholds – low threshold options for wheelchair access.

• Panel Configurations – 2, 3, or 4-panel sliding systems; French double doors.

• Handles & Accessories – chrome, brass, or contemporary bar handles.

Example: A Newport bungalow upgraded to French uPVC doors with woodgrain finish for a traditional look, while a modern Cardiff townhouse installed grey sliding uPVC doors to complement aluminium windows.

How much do uPVC patio doors cost in South Wales?

Costs depend on size, configuration, and glazing:

• uPVC French Doors: £900–£1,500 fitted.

• uPVC Sliding Patio Doors: £1,200–£2,500 fitted.

uPVC doors remain the most cost-effective option compared with aluminium bifolds or premium composites, making them a strong choice for budget-conscious homeowners.

How long do uPVC patio doors last?

With proper care, uPVC patio doors last 20–25 years. They do not rot or warp like timber, and modern finishes resist discolouration. Regular cleaning of tracks and seals ensures smooth operation for decades.