Industries / Plumbers
How to sell to plumbers by cold email
Updated November 7, 2026. Reply data read October 9, 2026; list counted September 3, 2026.
To sell to plumbers by cold email, start in one state, write to the owner about one job and expect about half the addresses to be on free mail. Our list holds 23,832 plumbing contractors. Across 12,547 construction contacts in our data, 87 replied with interest (0.69%).
This page is for companies that sell parts, tools, software, financing, marketing or services to plumbing companies. The numbers come from 336,257 contacts who got a first cold email from one of 20 Sales.co campaigns between March 6 and August 31, 2026, with replies read on October 9, 2026.
Quick picks: what are you doing?
| If you need | Pick | Price |
|---|---|---|
| Every contact we hold in this market, once | The plumbers list | $295 one time |
| Someone to write, send and answer replies | Sales.co service | $2,000 a month for up to 10,000 emails |
| The same service plus cold calls | Cold calls add-on | +$1,500 a month |
| A check on the list before you send | Free email list cleaner | Free |
What happened when real estate and construction contacts got cold email
| Who got the email | Contacts | Replied in person | Positive replies | Booked meetings |
|---|---|---|---|---|
| Real estate & construction | 12,547 | 161 (1.28%) | 87 (0.69%) | 1 (0.008%) |
| All 20 campaigns | 336,257 | 2,830 (0.84%) | 975 (0.29%) | 143 (0.043%) |
There is no plumbing row because no campaign of ours targeted plumbers alone. The figure comes from the real estate and construction bucket, which mixes general contractors, trades and property companies. Treat 0.69% as a rough bar and track your own replies from the first send. Of those 87 interested replies, 1 became a booked meeting, which points at the follow-up as the step to plan.
How many plumbers you can reach
Plumbing shares a Census code with heating and air conditioning: the 2023 count is 111,207 plumbing, heating and air-conditioning contractors with paid staff in 2023 (NAICS 238220), so the number is larger than plumbers alone. Our plumbers file holds 23,832 contacts across all 50 states and DC, counted September 3, 2026. With the HVAC contractors list the two reach 59,206, about 53% of the Census figure. Some firms do both trades and may be in both files; we have not counted how many.
| State | Contacts on our list | Census: plumbing, heating and air-conditioning contractors |
|---|---|---|
| California | 3,632 | 11,686 |
| Texas | 3,196 | 8,966 |
| Florida | 1,979 | 9,353 |
| New York | 1,285 | 7,061 |
Who is on the list
About half the addresses are on free mail, so write as if to a personal inbox. We have not checked who reads them.
| Field | Records | Share of 23,832 |
|---|---|---|
| Free mail (Gmail, Yahoo and similar) | 11,932 | 50.1% |
| The company's own domain | 11,900 | 49.9% |
| Has a phone number | 23,779 | 99.8% |
| Claimed Google listing | 15,873 | 66.6% |
Most records are tagged plumber (54.3%) or plumbing (39.8%). Water heater installers add 521 records and septic services 509, two niches with their own buyers. The mean Google rating is 4.55. Houston has the most contacts (361), then Los Angeles (208), Phoenix (204), San Diego (187) and Miami (185).
How to run it, step by step
- Start with one state. California gives you 3,632 contacts and Texas 3,196. Done is a file for one state.
- Run the file through the free list cleaner before sending. With 50% of addresses on free mail, typos and dead Gmail accounts are the first thing to remove. Done is a cleaned CSV.
- Write to the owner about one job: drain calls, water heater swaps, parts on account, scheduling software or job financing. Keep each email short. Done is three emails under 80 words each.
- Call back the same day a positive reply lands. 99.8% of records have a phone number, and in our construction data 87 interested replies became 1 booked meeting. Done is a time on the calendar or a no.
A worked example, with the numbers
This applies the positive reply rate above to the whole list and to one month of the $2,000 plan, with a 95% range around 87 positive replies from 12,547 contacts. It assumes the list behaves like the real estate and construction contacts in our campaigns, and three emails to each contact.
| Buy the list, send it yourself | Sales.co runs it | |
|---|---|---|
| You pay | $295 one time, plus your own sending tool, mailboxes and time | $2,000 a month, month-to-month, no setup fee |
| Contacts reached | 23,832, the whole file | About 3,333 a month (10,000 emails at 3 per contact) |
| Positive replies, likely range | 130 to 200 | 19 to 28 a month |
| Cost per positive reply, before sending costs and your time | $1.45 to $2.20 | $70 to $110 |
Sources
- Reply data: Sales.co campaign records, 20 campaigns, 336,257 contacts, first emails March 6 to August 31, 2026, replies read October 9, 2026.
- List counts: Sales.co plumbers list, counted September 3, 2026.
- Business counts: US Census Bureau, 2023 County Business Patterns, read October 30, 2026.
- Prices: sales.co/pricing and sales.co/email-lists, read November 7, 2026.
More on selling by industry
Plumbers list · Construction email lists · Best B2B email list providers compared · How to sell to financial advisors · How to sell to law firms · How to sell to doctors · How to sell to contractors · How to sell to insurance agents · How to sell to beauty salons · How to sell to HVAC contractors
FAQ
Where can I get a plumbers email list?
Sales.co's plumbers list has 23,832 plumbing, water heater and septic contractors in all 50 states and DC for $295 one time, counted September 3, 2026, with a free 25-row sample on the page.
How many plumbing companies are in the US?
The Census counts plumbing together with heating and air conditioning: 111,207 plumbing, heating and air-conditioning contractors with paid staff in 2023 (NAICS 238220). Florida has 9,353 of them and New York 7,061.
Do plumbers use business email addresses?
About half do. On our list 49.9% of addresses are on the company's own domain and 50.1% on free mail such as Gmail.
What does a plumber contact cost?
About 1.24 cents each on the $295 list. If you want Sales.co to run the outreach, plans start at $2,000 a month for up to 10,000 emails, month-to-month.