Kedarnath Dham is open from April/May to November. In other months, the weather is not suitable for travel, and even the palki of Baba Kedarnath is brought down to Omkareshwar Temple in Ukhimath.
Thus, when you hire a cab from Dehradun for Kedarnath, be prepared for cold weather and carry basic cold medicines.
The last point where we can take you in a car is Sonprayag, which is 220 km from Haridwar and 16 km from Guptkashi, offering some good accommodation options. Other places where you can stay are Sitapur and Phata.
I would suggest knowing about all the points like Yatra dates, accommodation, weather conditions, and the registration process. For that, you can always contact us at 8509351141.