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HVAC and plumbing companies in Suffolk County, NY
How Suffolk County, NY compares with other counties and the U.S. for HVAC and plumbing companies: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 53 out of 100: Upper middle
Ranked #738 of 1,707 scored counties
#53 of 56 scored counties in New York
- Listings
- 402
- 16 chain locations (4%)
- Official establishments
- 1,089
- +4.2% since 2019
- Household spending a year
- $2B
- On home repairs, maintenance and insurance · $4,071 a household
- Spending per listing
- $5M
- 5% above the U.S.
- Listings per 10k households
- 8.1
- 29% above the U.S.
- Population, 2025
- 1,546,090
- +1.6% since 2020
See the HVAC and plumbing companies around any address in Suffolk 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 Suffolk 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
Map listings as of September 2026 show 402 HVAC and plumbing companies in Suffolk County. Chain locations make up 4% of them, against 4% across the U.S. That comes to 8.1 for every 10,000 households, 29% above the U.S. rate of 6.3.
Households in Suffolk County spend about $2B a year on home repairs, maintenance and insurance, or $4,071 per household, 35% above the U.S. average. That is about $5M of household spending for each company on map listings, 5% above the U.S. figure of $4.8M. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Suffolk County was 1,089 in 2023, up 4.2% from 2019. That is one for every 454 households, against one for every 1,162 across the U.S. Since fiscal 2022, 41 SBA-backed loans worth $18.4M have gone to businesses classed as plumbing, heating and air-conditioning contractors in Suffolk County.
Between 2020 and 2025, the population of Suffolk County grew 1.6%, slower than the U.S. (+3.1%). Suffolk County scores 53 (upper middle) on the Groundwork market score for HVAC and plumbing companies, ranking #738 of 1,707 scored counties and #53 of 56 scored counties in New York.
How Suffolk County compares
The same measures for New York 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 | Suffolk County | New York | U.S. |
|---|---|---|---|
| Listings per 10k households | 8.1 | 4.7 | 6.3 |
| Spending per listing | $5M | $7.2M | $4.8M |
| Households per official establishment | 454 | 1,091 | 1,162 |
| Official establishment growth, 2019–2023 | +4.2% | +0.8% | +7.6% |
| Population growth, 2020–2025 | +1.6% | −0.6% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $4,071 | $3,373 | $3,018 |
| Median household income | $130,686 | $85,974 | $80,734 |
| Groundwork market score | 53 | 63 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 1,045 → 1,089+4.2% over the period
- Employees, 2023
- 7,975
- Annual payroll, 2023
- $651.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 40216 chain locations
- Listings at the U.S. rate for this spending
- 423The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 41
- Amount
- $18.4M
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Suffolk 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 Suffolk County
- Population, 2025 estimate
- 1,546,090+1.6% since 2020
- Households
- 494,405
- Median age
- 42.5
- Homes lived in by their owners
- 82%
- Vehicles per household
- 2.0
- Land area
- 898 sq. mi.
- People per square mile
- 1,620
- Median household income
- $130,686+29.4% vs. 2015–2019, before inflation
- Average household income
- $167,491
- Median home value
- $578,400
- Jobs located here
- 624,016
- Daytime population
- 1,340,805Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Suffolk 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 Suffolk 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 New York
Every New York market ranked →The highest-scoring counties in New York for HVAC and plumbing companies, numbered among those based in New York, with Suffolk County marked.
Top counties in New York
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Saratoga County, NY | 84 | 45 | 4.4 | $8.1M | +2.3% | #28 of 1,707 |
| 2New York County, NY | 82 | 209 | 2.7 | $14.2M | −1.3% | #44 of 1,707 |
| 3Schenectady County, NY | 82 | 29 | 4.3 | $7.2M | +3.0% | #45 of 1,707 |
| 4Otsego County, NY | 81 | 10 | 4.3 | $6.8M | +3.8% | #53 of 1,707 |
| 5Schoharie County, NY | 80 | 5 | 3.9 | $7.6M | +1.4% | #62 of 1,707 |
| 6Livingston County, NY | 78 | 6 | 2.5 | $12.2M | −0.2% | #75 of 1,707 |
| 7Madison County, NY | 78 | 7 | 2.7 | $11.4M | −1.2% | #76 of 1,707 |
| 8Ontario County, NY | 77 | 18 | 3.7 | $8.6M | +0.6% | #84 of 1,707 |
| 9Albany County, NY | 77 | 63 | 4.7 | $6.9M | +2.2% | #87 of 1,707 |
| 10Rensselaer County, NY | 76 | 27 | 4.0 | $7.9M | −0.2% | #94 of 1,707 |
| 53Suffolk County, NY | 53 | 402 | 8.1 | $5M | +1.6% | #738 of 1,707 |
Other business types in Suffolk 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 trades51
- HVAC and plumbing53
- Electricians44
- Roofing and gutters69
- Lawn, cleaning and pest control35
- Landscaping and lawn care35
- House cleaning47
- Pest control48
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Suffolk County, NY?
There are 402 HVAC and plumbing companies on map listings in Suffolk County as of September 2026. 16 of them (4%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 1,089 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 4.2% from 2019.
How much do households in Suffolk County, NY spend on home repairs, maintenance and insurance?
About $2B a year, or $4,071 per household. That is 35% above the U.S. average (an index of 135, where 100 is the U.S. average). Spread across the 402 HVAC and plumbing companies on map listings, it comes to $5M per company. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies. It is estimated from the incomes of the 494,405 households in Suffolk County and national spending patterns by income.
How does Suffolk County, NY compare with the U.S. for HVAC and plumbing companies?
Suffolk County has 8.1 HVAC and plumbing companies per 10,000 households, 29% above the U.S. rate of 6.3. Spending per company is $5M, 5% above the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Suffolk County would have about 423, against 402 on map listings. There is one business with payroll in the industry for every 454 households, against one for every 1,162 across the U.S. The official count rose 4.2% from 2019 to 2023, against +7.6% for the U.S.
How fast is Suffolk County, NY growing?
Population estimates put Suffolk County at 1,546,090 people in 2025, up 1.6% since 2020, slower than the U.S. (+3.1%). It has 494,405 households. The median household income in Suffolk County is $130,686 a year, 62% above the U.S. median of $80,734. That rose 29.4% from the 2015–2019 survey, 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. Suffolk County scores 53 for HVAC and plumbing companies (upper middle), #738 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Suffolk 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 Suffolk County
Screening a site or an acquisition in Suffolk 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 Suffolk 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.