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A couple who are expecting their first baby, want a glass room built in the cellar area of their house. Emma and John's unique house built on stilts is lacking space. Tommy and Alan plan to create a glass-fronted room for them between the stilts.

A new structure has emerged on the stilts of Emma and John's house for the new room. Tommy now needs to keep the style consistent with matching windows. Tommy calls on his glazier friends to copy the window style from the upper rooms to keep the style consistent by matching the new windows.

Time is running out but Tommy and Alan still have a lot to do including fitting a sliding glass door and installing a spiral staircase reclaimed from elsewhere in the house.

Tommy and Alan recreate Spanish-style for Louise and Andrew, with a garden based upon the designs of Barcelona designer Gaudi, complete with a curved wall and wavy pergola.

Work in the garden continues and Tommy and Alan bring some of the Barcelona weather to Derby with an ingenious underfloor heating system fitted below the patio.

Tommy and Alan are challenged to convert a Reading Bungalow into a two-storey home for Jon and Helen Clark.

With all the preparation done, it's time for Tommy and Alan to install the staircase and to fit the handrails and spindles.

With the stairs in place, the old doorway comes out and the new porch is completed with a brand new roof, front door and side-lights.

Rosemary and Fraser McDonald enlist the help of Tommy Walsh and Alan Herd to turn an ex-pub in Wiltshire into a comfortable family home. The challenge for Tommy is to remove a massive steel joist which is no longer required and to build a new patio door out to the garden area.

Tommy and Alan fit the dining room patio doors under the arch, which brings about an amazing transformation as work on the pub cellar concludes.

In Lincolnshire, Tommy and Alan begin work to convert the spherical cap at the top of a windmill into a useable room, by installing a staircase and a new floor.

Tommy and Alan discover that renovating the cap of a converted windmill brings certain problems and is proving troublesome for Tommy, particularly as all the wood has to be individually cut to size.

With the flooring and windows still to do, Tommy and Alan are up against the clock to finish the converted windmill. Is it a challenge too far?

Debbie Greenstreet calls on Tommy and Alan's expertise to convert her double garage into a useable living space. Removing the garage door is their first task.

Tommy and Alan add the finishing touches to the garage conversion, including lighting, insulation and sound proofing.