Heathrow Airport to Mayfair - Limousinen transfer

https://www.blackberrycars.com/

Thank you.

Can anyone else confirm that the company is good?

I don't have personal experience, but many contributors to the forum have used them and been happy.

Addison Lee is my prefered private hire car firm for executive-level transfers.

https://www.addisonlee.com/

"Can anyone else confirm that the company is good?"

If you do a search on this forum, you will see the company recommended. Some examples:

https://community.ricksteves.com/travel-forum/england/ride-service-to-heathrow

https://community.ricksteves.com/travel-forum/england/london-heathrow-to-hotel-transfers

https://community.ricksteves.com/travel-forum/england/best-way-to-get-to-hotel-37928338-9015-431b-bc27-c24d3510d021

https://community.ricksteves.com/travel-forum/england/affordable-car-service-suggestions-from-heathrow-to-the

Thanks for the information. I did some research and often read that sometimes People have to wait a long time for the transport services or that they don't come at all. Then I would have to phone the company. My phone is very old and the contract doesn't work for foreign countries. Sorry. And I did read Drivers and/or cars are sometimes in a dirty condition.
I wanted to take the express train, but it will not run because of construction work. So sad.
Now I'm thinking about the Elisabeth Line. But I keep reading that the train is very full. That makes me panic. Heathrow Airport to Bond Street. Is the train then very full? Have I researched this correctly?

The Heathrow Express would not be of use to you anyway. You would get to Paddington but then have to negotiate a change to the Elizabeth line or to a taxi so your small time saving would disappear.

The Elizabeth line starts at Heathrow, so there are plenty of seats available when you get on, as well as room for your luggage. Depending on the time of day the train could get busy beyond Paddington but Bond St is only one stop beyond there. You will be fine.

Take seats close to the doors so that you easily get off when you get to Bond St. the doors will open on the right hand side there. Cost will be £13.30pp and this will go towards a zone 1-6 cap for the day so any more travel on the day will cost little more. You will be able to afford a decent meal with the saving from a car service.

Ok. That sounds good. That's how we'll do it. Elisabeth Line to Bond Street and take a seat near the door at the airport.
For the return journey I was able to buy tickets from Paddington Station to the airport because the Express Train will be running again.
Thank you very much for your help!!

It would have made much more sense to travel back on the Elizabeth line rather than have to get to Paddington from your hotel.

Yes, you are right. Sorry, but I bought tickets for the Express -online-. Like, to try this way for the way back to the airport. My hope, that the train will be not crowded.

"My hope, that the train will be not crowed."

Trains are often crowded, but on both the Elizabeth Line and Heathrow Express passengers are used to tourists with luggage, so you won't have a problem. The Heathrow Express has luggage racks.

I Often take the Heathrow Express. And it’s never been crowded. Maybe there are times when it is but a lot of times I have a whole car to myself.

And before everyone, tells me how much money I’m wasting. No, I’m not. I buy very far in advance and at most it is a couple of pounds over the Elizabeth line and sometimes it’s less.

In my experience neither the HEX or the Elizabeth Line are crowded from Heathrow to Paddington. Maybe the latter at peak rush hour times but I suspect not too bad even then.

The important fact for the OP is that s/he is not going to Paddington but further on where the Elizabeth Line can take them but with the HEX a need to change counteracts the small time saving.

In the morning peak the Elizabeth Line gets very crowded eastbound into London, and westbound from London in the evening peak. I can tell you that from personal experience in the evening peak. I've seen it at crush loading as far west as Hayes and Harlington.
Eastbound you will be on before the crowds. But Heathrow Express is the way to go towards the Airport in the evening peak, especially if you have got one of the cheap fares, which are only fractionally more than the Elizabeth Line fare (less than £2 more if you buy far enough in advance).

In the context of the overall cost of the vacation a few pounds more is of little or no consequence.

We have to take the Express Train back to the Airport in the early afternoon. The ticket was 17 £ per adult. I thought, this is not really expensive. In Mayfair I think, we will not walk to the Bond Street Station, because I‘m to afraid that the Elizabeth Line back to the Airport will be to crowded. I think we will pick up a taxi for the few minutes way (google shows 15 min drive) to Paddington Station. If the weather will be good (= no rain), it could be, that we would decide to walk ( google maps shows a 40 min. walk). So we can do a little bit more sightseeing walking (maybe a little bit shopping -;) ) by our last few hours in London.