Last minute preparations underway at Berkshire church where Pippa Middleton will marry James Matthews in front of Kate and Wills on Saturday

THE FINAL touches are being added to a church in Berkshire where Pippa Middleton will marry James Matthews in front of Kate and Wills on Saturday.

Lights, cables and chairs were seen being delivered to St Marks Church in Englefield under the watchful eye of the wedding planner, while staff appeared to be arriving ahead of the big day.

A peak inside the church shows Gothic stained glass windows and a stunning embellished alter.

Resident priest the Reverend Nick Wynee-Jones will officiate the marriage at the venue, which was extensively restored by Sir George Gilbert Scott in 1857.

Around 150 guests are expected to attend the intimate and historic church, including the Duke and Duchess of Cambridge themselves.

Some estimates say that there may even be more guests than expected, as the building capacity is 350.

Prince George and Princess Charlotte will play star roles in the ceremony as a flower girl and page boy.

The reception will be held at her parents’ £6million home in nearby Bucklebury, Berks.

She is said to be wowing guests with a Spitfire display that will take place in the skies over the reception.

The couple have already splashed out an estimated £100,000 on a 140ft glass marquee for their guests.

The pair met in 2006 on the Caribbean island of St Barts and had an on-off relationship before they became a steady couple in 2014.

James, 40, popped the question to Pippa in July – less than a year into their relationship – and proposed with a hefty octagonal diamond ring, which comes with a central 4 carat Asscher-cut diamond stone.