yeah, like was said. Hundreds of companies make a tilt in double hung window. Decide what style of window and what materials you want it made of first, then shop for a company, and installer, who handles that brand.
If its a 'nice old house' its my opinion that you do not want to put on vinyl windows. Ideally you want to match the style of the house yet gain energy efficiency.
When I went through this on an 1800s cottage re-hab I knew I wanted casement, I wanted wood on the inside. I didnt care if it was true divided lites, simulated divided lites were fine for me. I didn't need low-e and pre-finished whie on the outside was perfect for my application. I also had some size requirements (small). Once I had all my criteria in mind I could go out and see what windows met my needs. Among those that did I shopped for the best price, availability and reputation. I was installing them myself so I didn't need to worry about installers. I ended up with Pella brand. They were the cheapest for what I wanted and needed.
Here is a link to Pella Double Hung
Window Materials and Styles with Pella | Pella.com
If you have any sashes in your old house that need new glass you may want to check this out
Episode #7 – Broken Glass