Will these balloons ruin my wedding?

Quite. It's astonishing where people's priorities lie isn't it? I wish helium balloons would be banned and genuinely can't understand why people would prioritise frivolous nonsense like this over future medical use.

Add in the landfill issue for single use plastic and the potential danger to wildlife and it's even worse.

I love them iv never seen them before

OP, as balloons go yours don't bother me at all and who cares if other people think they're tacky?
We had favours at our wedding which is a big mumsnet no-no.

The environmental aspect is one thing but stylistically, if your vibe is fun they're absolutely fine.

If you want them have them. You'll really regret not going for it.
I regret not splashing out on the extras I chose not to have.

Helium is in short supply for medical use. Completely unnecessary at any wedding

if you're not aware about the existential threat to the finite supply of helium globally, and the fact it's used for medical testing, please increase your awareness because you or one of your family may be glad of it some day, so the toss up between an MRI scan and encouraging someone to have wedding balloons filled with helium will be a no brainer for you.

If you want the balloons OP then go for them!

Helium is in short supply for medical use. Completely unnecessary at any wedding.

When the venue wedding coordinator said "I wouldn't" are they meaning that, due to the heat, you're likely not going to get the effect you want? If you're relying on them to be a major element of your decor and a lot burst or don't float properly you might be left disappointed.

I work in historic houses, have the qualifications etc.

One place I worked we had a blanket ban on balloons for environmental reasons. For our use, guests, everyone. Because of the environmental impact of their creation, use of helium, and if any got out into the park the killing of wildlife.

Aside from that we banned glitter and confetti inside and absolutely only biodegradable confetti outside.

With these kinds of balloons id be concerned about the 'luminescence' on the inside, and what that would do to historic interiors when they popped. I'd have banned them too.

You want to get married in an historic house you play by their rules, and they will (and should be free) to say no to anything at any time. They are preserving something that's going to last longer than our lifetimes.

(It's why I chose a modern pub for my wedding reception instead!).

The problem with helium is not where it goes to but where it comes from.

I have a severe anaphylactic latex allergy so I’d not be able to come to your wedding if I was related to you

They are hideous

Putting those into a historic landmark is just a no.

I spend a lot of time in an old building that hires out as a wedding venue - my advice would be: Never hang decorations with trailing sparkly bits where they would be within reach of a drunk bloke sitting on the shoulders of a drunk bloke. Especially not decorations that look like they might contain enough helium to make a drunk bloke's voice go really really really SQUEAKY so that he can make the other drunk blokes giggle.

Personally, I think they're great fun and, as it's not an outright 'no' from the venue, you can go for it.
I appreciate that vibe is not everyone's cup of tea, but some PPs have been unnecessarily vitriolic.

Popping in the heat is a real issue, but if balloons are done professionally they will often have something called HiFloat in them which makes the latex stronger and makes them last longer.

Issues I remember there being at venues -
• mess from balloons containing glitter
• balloons floating to high parts of the ceiling (easily fixed by leaving a foil balloon with an extra long string on it, cover it with double sided tape, float up, fetch stray balloons)
• guests inhaling helium
• balloons being released outside - wildlife and farm animal risk

More venues are refusing balloons because they don’t fit their aesthetic.

I actually love them. And it's your special day not theirs!!

If it’s an elegant room, then keep it that way! No one cares about the decor once the party starts.

I like them and I think you’re right - people will have more fun in an environment that reminds them of a club so I think these are perfect!

I like them. Just check them out in the flesh before the day to check the quality etc

Helium and heat are not a good combination

Thermal expansion. Room full of hot sweaty people and lights. Heats up the balloons. The helium in the balloons expands with the heat, stretches the latex and the balloons pop. Causes a mess and looks shit.

I gathered the OP wanted the truth, if you don't like the truth or cannot handle it don't read it 😙

Even if you didn't read that poster's sarcasm she literally said it needed a sarcasm emoji. Not sure how you could miss that.

It's to go to landfill or pollute water/nature. And tacky, I would be so quick to leave a space like that.

I wasn't serious. I think helium balloons should be banned. This sort of crap being manufactured, transported across the globe and bought for a few hours use before being sent straight to landfill (best case, littering/killing wildlife worst case) makes me sick.