Is part of your renovation replacing your HVAC system?
You want to hire the absolute best residential contractors you can find if you need to replace your heating and cooling system during your renovation process. Many times, not just one company can perform all of the task required for a home renovation project. You may have to hire more than one company to have the project completed successfully.
This is especially true if you need to replace the entire central air system for the home. This is usually an area general contractors do not have the most experience in. In this situation, you should probably contact a local heating and air company and ask them how much they would charge to for the job. Before to see photos and details of previous jobs performed just like yours before you hire them. You also want to make sure that they will be able to work together with the company you have hired for the renovation work.