Home services · County · Texas
HVAC and plumbing companies in Williamson County, TX
The HVAC and plumbing companies in Williamson County, TX, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 64 out of 100: Upper middle
Ranked #377 of 1,707 scored counties
#26 of 120 scored counties in Texas
- Listings
- 213
- 8 chain locations (4%)
- Official establishments
- 267
- +23.0% since 2019
- Household spending a year
- $893.5M
- On home repairs, maintenance and insurance · $3,541 a household
- Spending per listing
- $4.2M
- 12% below the U.S.
- Listings per 10k households
- 8.4
- 33% above the U.S.
- Population, 2025
- 752,827
- +22.3% since 2020
See the HVAC and plumbing companies around any address in Williamson County
The site report maps the HVAC and plumbing companies on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
At $3,541 per household (17% above the U.S. average), households in Williamson County spend about $893.5M a year on home repairs, maintenance and insurance. Spread across 213 HVAC and plumbing companies, that is $4.2M per company, 12% below the U.S. figure of $4.8M. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies.
There are 213 HVAC and plumbing companies on map listings in Williamson County as of September 2026. Chain locations make up 4% of them, against 4% across the U.S. That is 8.4 per 10,000 households, 33% above the U.S. rate of 6.3.
In 2023, official counts showed 267 businesses with payroll in Williamson County classed as plumbing, heating and air-conditioning contractors, up 23.0% from 2019. That is one for every 945 households, against one for every 1,162 across the U.S. Since fiscal 2022, 13 SBA-backed loans worth $3.8M have gone to businesses classed as plumbing, heating and air-conditioning contractors in Williamson County.
Population estimates put the population change in Williamson County from 2020 to 2025 at +22.3%, faster than the U.S. (+3.1%). Williamson County scores 64 (upper middle) on the Groundwork market score for HVAC and plumbing companies, ranking #377 of 1,707 scored counties and #26 of 120 scored counties in Texas. That puts it in the top quarter of counties.
How Williamson County compares
The same measures for Texas and the whole U.S. Spending per listing divides a year of household spending on all home repairs, maintenance and insurance by the HVAC and plumbing companies counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Williamson County | Texas | U.S. |
|---|---|---|---|
| Listings per 10k households | 8.4 | 7.9 | 6.3 |
| Spending per listing | $4.2M | $3.8M | $4.8M |
| Households per official establishment | 945 | 1,226 | 1,162 |
| Official establishment growth, 2019–2023 | +23.0% | +14.1% | +7.6% |
| Population growth, 2020–2025 | +22.3% | +8.5% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $3,541 | $3,015 | $3,018 |
| Median household income | $111,340 | $78,476 | $80,734 |
| Groundwork market score | 64 | 50 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 217 → 267+23.0% over the period
- Employees, 2023
- 3,856
- Annual payroll, 2023
- $266.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 2138 chain locations
- Listings at the U.S. rate for this spending
- 188The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 13
- Amount
- $3.8M
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Williamson County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.
Population and households in Williamson County
- Population, 2025 estimate
- 752,827+22.3% since 2020
- Households
- 252,323
- Median age
- 38.2
- Homes lived in by their owners
- 66%
- Vehicles per household
- 1.9
- Land area
- 1,116 sq. mi.
- People per square mile
- 603
- Median household income
- $111,340+27.5% vs. 2015–2019, before inflation
- Average household income
- $140,407
- Median home value
- $447,000
- Jobs located here
- 238,920
- Daytime population
- 563,844Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Williamson County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the HVAC and plumbing companies on map listings by name and distance.
Or open the report at the center of Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHVAC and plumbing across Texas
Every Texas market ranked →The highest-scoring counties in Texas for HVAC and plumbing companies, numbered among those based in Texas, with Williamson County marked.
Top counties in Texas
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Chambers County, TX | 95 | 8 | 4.6 | $7.2M | +22.6% | #1 of 1,707 |
| 2Travis County, TX | 87 | 297 | 5.1 | $6.8M | +7.2% | #18 of 1,707 |
| 3Collin County, TX | 81 | 329 | 7.9 | $4.7M | +20.6% | #58 of 1,707 |
| 4Denton County, TX | 80 | 279 | 7.7 | $4.7M | +16.9% | #67 of 1,707 |
| 5Upshur County, TX | 76 | 5 | 3.2 | $8.3M | +8.2% | #93 of 1,707 |
| 6Atascosa County, TX | 74 | 7 | 4.2 | $6.4M | +8.7% | #132 of 1,707 |
| 7Rusk County, TX | 71 | 8 | 4.4 | $6.1M | +5.0% | #185 of 1,707 |
| 8Cherokee County, TX | 71 | 8 | 4.4 | $6M | +5.4% | #190 of 1,707 |
| 9Wilson County, TX | 70 | 9 | 4.9 | $6.3M | +12.2% | #202 of 1,707 |
| 10Bexar County, TX | 70 | 461 | 6.1 | $4.7M | +7.2% | #217 of 1,707 |
| 26Williamson County, TX | 64 | 213 | 8.4 | $4.2M | +22.3% | #377 of 1,707 |
Other business types in Williamson County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
- Home repair trades57
- HVAC and plumbing64
- Electricians71
- Roofing and gutters54
- Lawn, cleaning and pest control78
- Landscaping and lawn care88
- House cleaning76
- Pest control71
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Williamson County, TX?
As of September 2026, map listings count 213 HVAC and plumbing companies in Williamson County. 8 of them (4%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 267 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 23.0% from 2019.
How much do households in Williamson County, TX spend on home repairs, maintenance and insurance?
About $893.5M a year, or $3,541 per household. That is 17% above the U.S. average (an index of 117, where 100 is the U.S. average). Spread across the 213 HVAC and plumbing companies on map listings, it comes to $4.2M per company. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade. It is estimated from the incomes of the 252,323 households in Williamson County and national spending patterns by income.
How does Williamson County, TX compare with the U.S. for HVAC and plumbing companies?
Williamson County has 8.4 HVAC and plumbing companies per 10,000 households, 33% above the U.S. rate of 6.3. Spending per company is $4.2M, 12% below the U.S. figure of $4.8M. At the U.S. ratio of HVAC and plumbing companies to household spending, Williamson County would have about 188, against 213 on map listings. There is one business with payroll in the industry for every 945 households, against one for every 1,162 across the U.S. The official count rose 23.0% from 2019 to 2023, against +7.6% for the U.S.
How fast is Williamson County, TX growing?
Population estimates put Williamson County at 752,827 people in 2025, up 22.3% since 2020, faster than the U.S. (+3.1%). It has 252,323 households. Median household income in Williamson County is $111,340, 38% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 27.5%, before inflation.
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Williamson County scores 64 for HVAC and plumbing companies (upper middle), #377 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Williamson County. It maps the HVAC and plumbing companies on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
How the score works · Top markets for HVAC and plumbing companies · All 56 business types in Williamson County
Screening a site or an acquisition in Williamson County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.