CSR Air Conditioning and Heating

Licensed Texas A/C contractor in Williamson County. License TACLB23286, Class B, active through November 9, 2027. No business website could be verified for this company, so it is listed here from state records but not scored or ranked.

Texas license record

A/C contractor licenseTACLB23286
ClassClass B: up to 25 tons cooling, 1.5 million BTU/hr heating
EndorsementCombined: environmental air plus commercial refrigeration
StatusActive, expires November 9, 2027
License holderRobb, Christopher S
County of recordWilliamson County, TX
Electrical contractor licenseNone found under this business name
TDLR enforcement ordersNone on record as of October 4, 2026
Business websiteNone we could verify as theirs

From TDLR open data and TDLR's public administrative-orders search, checked October 4, 2026. Orders are matched by license number and company name together. Verify on TDLR.

What we could not verify

Everything else that goes into a ranking on this site is read from a company's own website: the services it lists, whether it installs ductless mini splits or heat pumps, posted prices, financing, warranty terms and service area. We did not find a website we could confirm belongs to CSR Air Conditioning and Heating, so none of that is on record here. If this is your company, send us the site and it will be read and scored on the next update.

Verified, ranked alternatives in Williamson County

CompanyScoreSinceMini splitsPosted priceFinancingLabor warranty24/7Free estimates
1MLD Services LLC972009✓✓✓✓✓✓
2Jurnee Mechanical and Services95Not stated✓✓✓✓✓✓
3Texas Legacy Services LLC80Not stated✓✓✓✓✓
4Roznovak's Services,inc671979✓✓✓
5Morris Heating & Air65Not stated✓✓✓✓

Other licensed contractors in Williamson County

CDW AC and Heating Services LLC Class BCFMS LLC Class BCLB Family Investments Class BCPS HVAC Group LLC Class BCapital City Cooling rankedCapital Industries LLC Class ACapital One Enterprises LLC Class BCapitol Air Conditioning Services LLC Class A

All 437 licensed contractors in Williamson County →

Questions

Is CSR Air Conditioning and Heating a licensed HVAC contractor in Texas?

Yes. TDLR lists an active Texas A/C contractor license, TACLB23286 (Class B), with a business address in Williamson County, expiring November 9, 2027. How to verify it yourself.

Why is CSR Air Conditioning and Heating listed but not ranked?

Our ranking only scores companies whose own website we could confirm, because the score is built from what a company publishes: services, posted prices, financing and warranty terms. We found no website we could verify as CSR Air Conditioning and Heating's, so the company appears in the Williamson County directory unranked. The license itself is real and current.

What does the license class mean?

Class A has no size limit. Class B is limited to systems up to 25 tons of cooling and 1.5 million BTU per hour of heating, which still covers nearly every home. The C endorsement covers combined: environmental air plus commercial refrigeration.

How do I check CSR Air Conditioning and Heating before hiring?

Ask for the license number and look it up on TDLR's license search; confirm the name and expiration match this page. Ask who pulls the permit, whether the technician is an employee, and for the parts and labor warranty in writing. Then compare the quote against the posted prices on this site.