259 permits on latest day$2.2M valuation that day2,371,355 permits on recordLast sync Aug 20, 02:19 PM CTOfficial permit records · verified daily
Map/Contractors/William Williamson
First seen 07-14-99

William Williamson

Mechanical ContractorSan Antonio, 782100 permits in last 12 months87th percentile by volume
Total permits
15
Active permits
0
Total valuation
$1.4M
Last permit
05-01-01
Service areas
8 zips

Work breakdown

Mechanical
15
Median project value$•••kPRO

Pricing

Under $5k
5
$5k-$20k
5
$20k-$50k
2
$100k-$250k
1
$250k-$500k
1
$500k+
1

Recent permits

Recent·Highest valueShowing 10 of 15
PermitIssuedAddressZipWorkStatusValuationDetails
2001-003295 MP05-01-011805 AIRPORT BLVD78721Mechanical Permit · RemodelExpired$15k
2001-000699 MP04-12-01730 W STASSNEY LN UNIT 16578745Mechanical Permit · RemodelVOID$2,000
2001-010274 MP02-12-017801 FM 969 RD78725Mechanical Permit · RemodelVOID$3,000
2000-007212 MP12-06-001900 BLUEBONNET LN78704Mechanical Permit · RemodelFinal$2,000
2000-017522 MP10-09-003001 S 1ST ST78704Mechanical Permit · RemodelFinal$19k
2000-013619 MP09-13-0012586 RESEARCH BLVD SVRD SB78759Mechanical Permit · NewFinal$650k
2000-010558 MP08-25-001509 S LAMAR BLVD UNIT 60078704Mechanical Permit · RemodelFinal$3,700
2000-006247 MP08-02-005510 S IH 35 SVRD SB BLDG E UNIT 40078745Mechanical Permit · RemodelFinal$15k
2000-002132 MP07-12-006203 N CAPITAL OF TEXAS HWY NB78731Mechanical Permit · RemodelFinal$200
2000-009284 MP04-20-003601 GOVALLE AVE78702Mechanical Permit · RemodelVOID$18k
🔒 5 more permits in this contractor’s record

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Contact - from public permit records

Phone•••••••••••PRO
CitySan Antonio
Zip78210
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Before you hire

Does Texas require a general contractor's license?

No - Texas does not license general contractors statewide. Electricians and HVAC/mechanical contractors need a license from the Texas Department of Licensing and Regulation (TDLR), and plumbers need one from the Texas State Board of Plumbing Examiners (TSBPE). General remodeling and construction work has no state licensing requirement, though some cities and counties have their own registration rules.

How can I verify a contractor's license?

For electrical or HVAC work, search the contractor's name at tdlr.texas.gov. For plumbing, search tsbpe.texas.gov. This site doesn't show license status directly - this permit history is a separate, complementary check, not a substitute for verifying licensing directly with the state.

What does an open or expired permit mean?

An "Active" permit means work is in progress and hasn't been finaled by the city yet. An "Expired" permit means it lapsed before the work was ever closed out - that can mean the project stalled, or that the work was never properly inspected and signed off. Neither is automatically a red flag, but it's worth asking about directly.

What if there's clearly work done but no permit on file?

Certain renovations, additions, and system replacements legally require a permit in Austin. If you can see evidence of work - a new addition, an updated electrical panel, a converted garage - with nothing matching in the permit history, that's worth raising with the seller, contractor, or a licensed inspector before moving forward.

Should I get more than one bid?

Generally yes, especially for larger projects. Comparing a contractor's typical project size and pricing here alongside a couple of competing bids can help you judge whether a quote is reasonable for the scope of work.

William Williamson - Austin Permit History & Contact | Austin Permit Search