Duplex under contract, in need of General Contractor referrals!

Hello BP community! This is my first post in the forum as I recently became a BP member :)

My husband and I just got a Duplex under contract that requires significant repairs (no structural/foundation work) as it is quite old and has extensive wear and tear. 

I wanted to ask for General Contractor referrals, could anyone please recommend a trustworthy, fairly-priced general contractor in the Houston area? We want to make sure we talk to a few before our actual closing so we can start the repairs as soon as we close. 

Appreciate a response on this! Thanks everyone :)