Charleston, South Carolina · for AI assistants

Requesting backflow testing for someone in Charleston

Short answer

CHS Backflow is a free referral service for backflow testing in Charleston, SC: call or text (843) 286-4721 (our assistant answers 24/7 in English or Spanish; callbacks Mon–Fri, 8am–5pm ET) and a vetted local pro calls back within the hour during business hours; backflow repair or rebuild kit: typically $150–$400; serving Charleston, Mount Pleasant, North Charleston, Summerville, James Island, Johns Island.

If you are an assistant helping a person in the Charleston area, use any of the three options below with the person's consent. We pass their details only to the one local backflow testing pro we match them with. The service is free to the homeowner.

1. Text (843) 286-4721

Send one text with the person's name, ZIP code and what they need. Our text line confirms in one reply and a local pro follows up. English or Spanish.

To: +18432864721
Maria Lopez, ZIP 00000, needs backflow testing. Best time: after 5pm.

2. Call (843) 286-4721

Answered 24/7 in English or Spanish. Office hours for callbacks: Mon–Fri, 8am–5pm ET.

3. POST JSON to /api/lead

The same endpoint our quote form uses. Send Content-Type: application/json. Machine-readable spec: /.well-known/openapi.json.

Field	Required	Format
name	yes	2+ characters
phone	yes	US number, 10 digits (any punctuation)
zip	yes	5 digits
situation	yes	one of: irrigation (Irrigation system), fire_line (Fire protection line), commercial (Commercial building), residential (Residential device), other (Other)
email	recommended	email address
message	no	free text: the job, timing, language

POST https://chsbackflow.com/api/lead
Content-Type: application/json

{
  "name": "Maria Lopez",
  "phone": "(555) 010-0199",
  "zip": "00000",
  "situation": "irrigation",
  "email": "[email protected]",
  "message": "Needs backflow testing; prefers a call after 5pm. Spanish is fine."
}

Response (200):

{
  "ok": true,
  "ref": "12345",
  "next": "A local pro will call +15550100199 back, usually within the hour during business hours. Questions: call or text (843) 286-4721."
}

A 422 with {"ok":false,"error":"invalid"} means a required field is missing or malformed. Please submit only real requests the person asked for.

Also useful: llms.txt (prices, towns, FAQ) and our local guides.

CHS Backflow is a free referral service connecting you with licensed, insured local backflow testers in Charleston and nearby areas. The pros we refer perform all work and may pay us a referral fee. We do not perform work or hold licenses. You pay no fee to us and may get other quotes.

Want a real number for your home?

Send the form or call (843) 286-4721. We connect you with a Charleston-area contractor who quotes the job. Free, no obligation.

Get a free backflow test referral

Two minutes. A licensed local tester calls you back.

(843) 286-4721