Not to be picky, but there really aren't any "David Austin Climbers," of which I am aware.
The thing is that many of the Austin roses which are upright Shrubs in England,
act like climbers in much of the U.S.

In Southern California, many, but not all, of David Austin's roses grow up
to be "Jolly Green Giants."
But in colder climates, in shorter growing seasons, I suspect that
those same roses are likely to grow as the tall, upright Shrubs they were
intended to be.

Jeri

There actually are 2 bona fide climbers from DA. Both are very early Austins and both are once-bloomers: Chianti and Constance Spry. I don't know how tall they will grow in your climate, but in mine they both have reached 8-9 feet in 3 years. Constance Spry is a full pink bloom with myrhh fragrance. Chianti is related to Tuscany Superb and is dark red with a light fragrance.

I have heard others grow some Austins as climbers in the south, but in my climate CS and Chianti are the only two that grow to climbing length. Obviusly DA was not able to mix both the repeat-bloom and hardiness genes together. CS and Chianti are very very hardy for me, but only bloom once, unlike all my other Austins that repeat all summer.

I don't know what your climate zone is. Jeri is right about these roses growing differently in different places. I am in zone 8 in California. Here some of the Austins are "climbers".

I stopped by the home of an acquaintence the other day to see her daylillies and walk around her garden. She has a Constance Spry on a trellis, and the rose must be at LEAST nine feet "tall" and very full and healthy. She says it also hardly suffers any dieback during the winters, and we have pretty harsh ones here in northern Illinois 4b/5a. It is a once-bloomer like veilchen said, but reportedly has such an awesome, fragrant show in the Spring that it is very worth it.

I've lived in SE Ohio, probably a similar climate to yours and grew Constance Spry. It covered a 12 x 10 foot trellis and grew onto the 6' wire fence; did not die back despite our hilltop location. Yes, it only blooms once but what a show! Others that were good back in Ohio were Westerland (short climber/shrub), Blossomtime, Viking Queen, and New Dawn. If I moved back there now, I'd contact the local rose society as I'll bet Kordes has some newer climbers that would not die back to the ground & local rosarians can tell you which ones! Another good bet is to check the climbers planted at any public gardens near you. Another once-bloomer that's sort of an Austin lookalike, very hardy, is the glorious Alchymist...from guess who, the German breeder Kordes.

Graham Thomas and Evelyn will not "climb anywhere" in your climate zone. A shropshire Lad might become a low climber against a wall or in the microclimate a very sheltered courtyard offers. Some Austins that have grown very tall and that I have trained as low 8-10 feet climbers agains east, South and west facing walls are. Teasing Georgia and James Galway and onceflowering Chianti.

Austin has introduced some real climbers: Snow Goose and Malvern Hills. Both have flexible canes that are anything but - stiff and upright, but again I doubt they will do well in your climate. The best Austin Climber for your climate is Constance Spry. I wrote about it recently on my blog. Plant a late flowering clematis next to it and you will have something beautiful to look at for a long time.

Here is a link that might be useful: Constance Spry

I'm in a different zone but thought I'd chime in anyway. I grow Abraham Darby on a sturdy wooden trellis and its easily 7-8' tall. I just keep pruning it to go up rather than out. I love this rose. The colors are gorgeous and the fragrance is divine. Mine is about five years old and really put on a show with it's first flush.

Wow, none of my DA's are in bush form. They are all monster 'climbers', must be a zone thing. Don't even get me started on these Graham Thomas beasts. I have 3 Chianti's which are the only non-bare roots I've ever purchased (2 yr olds from Ashdown)and they are pretty sickly looking. They've never bloomed and frankly I don't think they like the Texas heat. They may do much better in the northern climates! I'd recommend trying Chianti if you don't mind a once bloomer. Just be careful, she's got some seriously violent thorns.

Michelle, Chianti has a lot of gallica in it, which may explain the stinginess in your southern climate.

David Austin USA is in Tyler, Texas.