6 Specialist Inspections Worth Ordering in Williamson County
Buyer Guide · Texas

6 Specialist Inspections Worth Ordering in Williamson County

Buyers asking what inspections do I need buying a house in Central Texas start with the general inspection. TREC's Standards of Practice say plainly what that inspector is not required to inspect.

6 things to know T. Kerr Property Group

Those named exclusions are the whole point of this page. Each of the six specialists below closes one of them.

The six orders worth making, and the exclusion each one closes.

01

Why would I order anything beyond the standard home inspection?

Section 535.227(d) says the inspector is not required to inspect items other than those listed in the standards. The same subsection excludes wear and tear from ordinary use. It also excludes the cause or effect of deficiencies. And the inspector is not required to anticipate future events or conditions. A clean report covers the listed items on one day. It is not a forecast.

What a strong answer sounds like

A good inspector names the excluded systems before the visit. The standards do not prohibit a higher level of performance. An inspector with the competency may agree to inspect extra systems. So the first question is simple. Does the buyer's own inspector already cover these?

Red flag

A report with a blank section and no explanation is the warning sign. Section 535.227(f)(2) covers that. An inspector who departs from a required inspection must tell the client at the earliest practical opportunity. The reason belongs on the report too. In Georgetown, Round Rock and Liberty Hill, where T. Kerr Property Group works, acreage homesites are part of the mix. A gap with no reason attached becomes the buyer's problem after closing.

02

Do I need a septic inspection on a Williamson County property?

Section 535.233(a) does not require an inspector to inspect private sewage disposal systems. If the inspector agrees to inspect one, the standards for that system then apply. So the tank, the drain field and the pumps sit outside the standard scope. Nobody looks at them unless the buyer orders it. On a property with no city sewer that is the largest system on the land.

What a strong answer sounds like

The Williamson County Department of Infrastructure issues on site sewage facility permits. The exception is land inside the City of Austin. A good request is the permit file plus a licensed inspection of the tank and field. Applications are accepted only online through My Government Online.

Red flag

A Texas seller who says the system works fine, with no paperwork, is the red flag. Construction cannot begin on a facility until an Authorization to Construct is granted. A property owner must also receive authorization from the department to install a system. No authorization on file is a question for the county, not for the seller.

03

Does the home inspector test the water from a private well?

Section 535.233(a) does not require an inspector to inspect private water wells. The state does not regulate the water quality of a private well either. The well owner is responsible for addressing water quality problems. So the pump, the casing and the water all sit outside the standard report. On an acreage purchase that water is the household supply.

What a strong answer sounds like

Testing can cost from about $20 for the presence or absence of coliform and E. coli bacteria. A full drinking water standards analysis runs up to about $400. Some groundwater conservation districts test free or at reduced cost. The Texas Department of Licensing and Regulation licenses water well drillers and pump installers.

Red flag

A seller with no well registration is not hiding anything. Private well owners do not register wells with the state. The driller files a State of Texas Water Well Report instead. Reports from 2003 onward sit in the Submitted Drillers Reports Database. Earlier paper reports were scanned into the Water Well Report Viewer at the Texas Commission on Environmental Quality.

04

Should I get a sewer scope or a plumbing test on an older house?

An inspection does not require specialized equipment or any method employing destructive testing. A camera run down the sewer line is specialized equipment. So the line under the slab is not scoped on a standard inspection. Older Central Texas houses can carry cast iron or clay lines. A broken line out of sight does not show up in a clean report.

What a strong answer sounds like

Paragraph 7A of TREC Form 20-19 carries the rule that matters here. Hydrostatic testing must be separately authorized by the seller in writing. A good buyer's agent asks for that authorization early. Paragraph 7A also requires the seller to turn existing utilities on and keep them on. So the test can actually run.

Red flag

Assuming the general inspector scoped the line is the common mistake. Asking for a hydrostatic test after the option period is the expensive version. The seller has no obligation to agree once that date passes. Put the request in the first conversation, not the last.

05

Is the sprinkler system part of a standard home inspection?

Section 535.233(a) lists landscape irrigation systems among the systems an inspector is not required to inspect. A sprinkler system can pass through a whole sale with nobody running it. Central Texas heat does not wait for a slow repair. A broken zone turns up as dead turf weeks after closing.

What a strong answer sounds like

A licensed irrigator runs every zone and checks the controller. The report should name the zone numbers and what each one covers. Leaks at the valves and the heads get found the same way. If the buyer's own inspector agrees to inspect the system, the standards for it then apply.

Red flag

A seller clicking through one zone at the controller is not an inspection. Neither is a line on the report saying the system was not operated. Central Texas summers are long, and a season of broken zones costs real money. Ask for every zone to be run.

06

Does a home inspection cover termites, mold or other environmental hazards?

Section 535.227(d) says the inspector is not required to inspect the presence or absence of pests, termites or other wood destroying insects or organisms. The same subsection excludes lead based paint, mold and mildew. It also excludes any other environmental hazard, pathogen, carcinogen, toxin, mycotoxin, pollutant, fungal presence or poison. An inspection does not require environmental testing.

What a strong answer sounds like

A wood destroying organism report is a separate order from a separate licensed inspector. A good report names the structure inspected and the evidence found. On an environmental question, a good answer names the test and the laboratory result.

Red flag

An inspector who says the attic looked dry and clear of mold is offering an opinion the standards do not require. Mold, mildew and fungal presence are excluded by name. A Georgetown buyer with a specific worry should order the test. Section 535.227(d) also rules out anticipating future conditions.

This article is general information about the Central Texas market and is not legal, tax or financial advice. Statutes, rates, deadlines and district rules change. Confirm anything that affects a decision with a licensed attorney, a tax professional, the Williamson County Tax Assessor Collector or the Williamson Central Appraisal District before acting on it.

Side by side

The specialist order against the exclusion it closes

Each row names the exclusion in TREC's Standards of Practice that the specialist closes.

The specialist inspectionWhat the standard inspection is not required to coverWho to ask
Septic or on site sewage facilityPrivate sewage disposal systems, under Section 535.233(a)A licensed septic inspector, plus the permit file from the Williamson County Department of Infrastructure
Private well and a water testPrivate water wells, and the environmental testing an inspection does not requireA driller or pump installer licensed by the Texas Department of Licensing and Regulation, plus a testing laboratory
Sewer scopeSpecialized equipment, which a standard inspection does not requireA plumber or a sewer camera service
Hydrostatic plumbing testAny method employing destructive testingA licensed plumber, once the seller authorizes the test in writing under Paragraph 7A
Landscape irrigationLandscape irrigation systems, under Section 535.233(a)A licensed irrigator
Wood destroying organisms and environmental testingPests, termites, lead based paint, mold, mildew and other environmental hazards, under Section 535.227(d)A licensed wood destroying insect inspector, or an accredited laboratory
Common Questions

Frequently asked questions.

What is the new law in Texas about inspection?

There is no new Texas home inspection law. The last adopted revision of TREC's inspector Standards of Practice took effect 1 February 2022. The last adopted inspection report rule change took effect 7 March 2023. At its meeting of 20 July 2026 the Texas Real Estate Inspector Committee recommended that proposed changes be withdrawn for now and reproposed later. Nothing new is in force.

How much should a home inspection cost in Texas?

Cost varies, and this page carries no figure for it. A Central Texas buyer should call two or three licensed inspectors and quote the specific house. Texas Occupations Code Section 1102.103 requires a professional inspector license, so start the calls there. Each specialist order on this page is a separate quote.

Does a home inspector in Texas have to be licensed?

Yes. Texas Occupations Code Section 1102.103 says a person may not act as a professional inspector in Texas for a buyer or seller of real property without a professional inspector license. Section 1102.001(9) defines a real estate inspection as a written or oral opinion on the condition of the improvements. Paragraph 7A of TREC Form 20-19 lets the buyer use inspectors licensed by TREC or otherwise permitted by law.

Is the inspection report form set by TREC?

Yes. The form is the Property Inspection Report, REI 7-6, effective 1 February 2022. Section 535.227(c) requires the inspector to complete that standard report form. The same subsection has the inspector operate fixed or installed equipment in at least one mode, with ordinary controls at typical settings.

Can a buyer be there for the inspection?

Paragraph 7A of TREC Form 20-19 has the seller permit the buyer and the buyer's agents access at reasonable times. The buyer may have the property inspected by inspectors the buyer selects. Attending is worth the time. Section 535.227(c) has the inspector working from near proximity, and from inside the attic and crawl spaces.

Talk It Through

Georgetown realtors who read the inspection scope first

A standard inspection is a starting point, and the specialist orders have to be lined up before the option period runs out. T. Kerr Property Group works with buyers in Georgetown, Round Rock and Liberty Hill, including acreage homesites where the septic system and the well carry the most risk. Tanya Kerr was named an expert source on the Central Texas market by KeyCrew Media. Buyers who want a top real estate agent in Georgetown sequencing those orders can start with a conversation through the website.

Get In Touch!

(512) 851-8350

1003 South Austin Avenue

Social Links

Quick Links

ALL RIGHTS RESERVED 2026 | Copyright @2026 T. KERR PROPERTY GROUP.