Flat Roof Balcony

Flat Roof Balcony or Balustrade

Thinking of creating an outdoor area on a flat roof? A flat roof balcony provides safety, adds a touch of class and with a glass balustrade you also get some protection from the elements.


A Common Problem

Adding a balcony to a flat roof usually  involves doing things in stages – measuring for and inserting the posts, sealing the holes for waterproofing, then finishing the roof, finally adding the glass. This often means delays as your builder waits on parts to be fabricated, which can be time-consuming and costly.

The seals where the posts fit through the waterproof membrane also have to be perfect, or the roof will begin to leak.


Our Solution

Our suggested process is to fabricate a rectangular box section steel sub-frame for the roof. This can be installed by your builder and then your balustrade bolted onto to this, making the job much quicker.

The sub frame sits on top of the membrane and doesn’t require holes drilling into the roof, preventing possible leaks later on. It also means that any future maintenance is simpler.

So if you’re thinking of adding a balcony or balustrade to a flat roof, give us a call. The subframe costs £200 per metre including VAT.

We can make and supply any size or design or balcony in steel or glass, to your specification.

“I thought I’d just drop you a note to let you know how pleased we are with the (flat roof) balustrade. It went together like a dream. I attach a couple of photo’s for your info. I was very impressed with your service and will not hesitate to recommend you to others.”

photo: Flat Roof Terrace juliet balcony

photo: Sub-frame juliet balcony


Call 0161 241 9872 / 0792 935 8127 to order or get a quote – open until 7pm, monday to saturday.

Or email sales@crdirect.co.uk.


In our workshop – a flat roof subframe with balustrade.




Call 0161 241 9872 / 0792 935 8157 to order or get a quote – open 9am to 7pm, monday to saturday.

Or email sales@crdirect.co.uk.



Your quality guarantee

If for any reason you are not completely satisfied with the service we provide, simply return the unused goods to us within 2 weeks for an immediate replacement or refund. All balconies are Hot dip galvanised (to BS729) to prevent corrosion. Included are stainless steel fixings, touch-up paint and plastic bolt covers to achieve a professional finish.