ᐅ Additional Costs for Anthracite Color on Windows, Front Door, and Garage Door?

Hello,

unfortunately, we contractually agreed on white for the windows, front door, and garage door.

What do you estimate the additional costs would be if we switch to the color anthracite?

1 garage door for a double garage
1 front door, 1.10 m (3 ft 7 in) wide
11 windows
11 patio doors

Thank you very much for your estimates!

Over 8,000 euros

The front door has no additional cost for us.
Windows according to the list are supposedly just over 4,000 special price 2,600 in the calculation. (13 windows, 4 patio doors)
Garage door no idea.

If you keep the window sills in aluminum, you might be able to stay under 2000.

The only price change we have noticed is for the garage door.

I only had offers averaging between 4,000 and 6,000 euros for 10 windows and 2 patio doors.