Told I need bifold doors treatment - a con?

[Dylan T]

Hi all - I am currently trying to buy some aluminum bifold doors for a self-managed kitchen extension build; got a fair few quotes and went to purchase with one company who have now asked me if I live within 5 miles of the ocean (I technically) do so I said yes. They now are saying they have to apply a marine coating to my doors to protect against the salt which is an extra fee and said that without it they would corrode and the warranty wouldn't apply. I'm trying to work out if this is a con or not, so am reserving judgement till hopefully some helpful people can give me their thoughts. I see bifolds all the time on the coast, so do I assume they all have this coating? I'm about 1km from a tidal estuary (its not very exposed as its a built up area) but realistically about 12km before that estuary hits the ocean itself. The treatment will cost a fair bit more and add weeks onto my delivery so just want to make sure it's worth it.

Many thanks!

 

[crank39]

Ask them the name of this coating, how it's applied and how much it costs

 

[Dylan T]

I think it's a thicker coating of the same paint but I will ask, thanks

 

[johnny2007]

Send them an email thanking them for their quote which you are politely declining because too expensive compared to others.
The revised quote will follow almost immediately.

 

[foxhole]

Some info here.
https://www.aluminiumtradesupply.co.uk/14735/aluminium-windows-doors-coastal-locations/

 

[Doug99]

My daughter is in the process of buying a house with large folding multi panel patio doors. They were only installed 2 years ago and the outside frame coating is already peeling away badly. The house is on a high windswept location 3 miles from the coast. She's still waiting for confirmation of who installed them and whether any warranty exists. We probably wont know what caused the coating failure until its flagged up with the installers/manufacturer.

 

[johnny2007]

Sea salt corrodes everything, even concrete.