Williamson County construction: bids, contractors and projects
TxDOT lettings, listed contractors and project news for Williamson County, Texas, updated daily from public records.
Williamson County is part of our Austin District coverage area and falls under TxDOT Austin District, headquartered in Austin. The public records we draw on list 796 construction contractors with a Williamson County address: 19 TxDOT-qualified bidders and 777 TDLR-licensed specialty contractors. The largest single group is TDLR Air Conditioning & Refrigeration Contractor (415). Most are based in Georgetown, Round Rock, Leander.
TxDOT's statewide letting schedule currently has 1 upcoming proposal in Williamson County, the next on Nov 3, 2026. TxDOT districts also hold their own local lettings for smaller contracts, so check the district page too.
Upcoming TxDOT lettings in Williamson County
| Letting | Proposal | Major work type | Documents |
|---|---|---|---|
| Nov 3, 2026 | 11264012 | Routine Maintenance Project - Sealed 路 SH0045 |
Contractors based in Williamson County
Texas has no statewide general contractor license. Counts combine TxDOT's public vendor list (firms qualified to bid TxDOT work) with TDLR's open license data for air conditioning, electrical, elevator, appliance installation, electrical sign and water well contractors with a Williamson County address. Use them to find primes to team with or subs to price your bid.
- TDLR Air Conditioning & Refrigeration Contractor: 415
- TDLR Electrical Contractor: 317
- TDLR Appliance Installation Contractor: 21
- TDLR Elevator Contractor: 9
- TxDOT Qualified Bidder (Bidder's Questionnaire): 8
- TDLR Water Well Driller/Pump Installer: 8
- TDLR Electrical Sign Contractor: 7
- TxDOT Prequalified Prime Contractor (Confidential Questionnaire): 7
- TxDOT Qualified Maintenance Contractor: 4
Find Williamson County subcontractors Find Williamson County general contractors
Williamson County project news
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How to bid public work in Williamson County
State highway work in Williamson County is let by TxDOT. Most contracts go through the monthly statewide letting in Austin, and the Austin District also holds local lettings for smaller jobs (district page). Primes must qualify with TxDOT before they can get a proposal, and subcontractors don't need TxDOT prequalification. See how to bid TxDOT contracts.
State agency and university solicitations over $25,000 are posted on the Electronic State Business Daily (see the ESBD and CMBL guide). County, city and school district projects are advertised on each government's own procurement portal. Before you bid, check which trade licenses apply (licensing guide) and your payment protections (lien and bond basics).
Statewide rules that apply here
Nearby counties
Austin District region: Bastrop 路 Blanco 路 Burnet 路 Caldwell 路 Gillespie 路 Hays 路 Lee 路 Llano 路 Mason 路 Travis
Also in TxDOT District 14: (same as above)