Growing a plumbing business takes more than showing up with a snake and a good attitude. Drain cleaning and sewer service is a competitive niche where the right systems, pricing, and visibility separate six-figure owner-operators from seven-figure companies. Use this checklist to find the gaps and close them.
Audit Your Current Service Offerings
Before you expand, know exactly what you're selling. Most drain and sewer companies leave money on the table by offering reactive unclogging without packaging higher-margin work alongside it.
Review your menu and ask whether you're offering:
- Hydro-jetting (typically $350–$600 per service) as a premium upsell to basic snaking
- Camera inspection and line locating ($150–$300 standalone, or bundled with clearing)
- Sewer line repair and pipe lining (CIPP lining jobs often run $3,000–$12,000+)
- Grease trap cleaning for commercial accounts
- Preventive maintenance contracts billed monthly or annually
If you're not offering at least three of these, you're sending revenue to competitors.
Systemize Your Estimating and Pricing
Random pricing kills growth. Techs who quote different rates for the same job create customer complaints and shrink your margins unpredictably.
Build a flat-rate pricing book specific to drain and sewer work. Include scope triggers—when a job moves from a standard main line clear to a camera inspection to a full liner replacement. Train every tech on how to present the upgrade honestly and confidently. Software like ServiceTitan or Housecall Pro can hold your price book and make quoting consistent across your whole crew.
Hire and Train Before You Need To
The most common growth mistake in the trades is waiting until you're overwhelmed to hire. By then you're training someone while running calls yourself, and quality drops.
Plan your next hire when you're at 75–80% capacity, not 100%. For drain and sewer specifically, look for:
- Technicians with hands-on experience with electric eels, hydro-jets, and camera systems
- A dispatcher or CSR who understands urgency triage (a backed-up main line is not a next-week problem)
- A part-time estimator if you're pushing into commercial or municipal sewer work
Invest in NASSCO certification training for techs doing pipeline inspections. It differentiates you from unlicensed competitors and justifies higher rates.
Expand Into Commercial and Municipal Accounts
Residential drain calls have volatile seasonality. Commercial and municipal contracts smooth out cash flow. Restaurants, property management companies, and municipalities all need recurring sewer service—and once you're on their vendor list, that revenue is stickier.
To break into commercial accounts:
- Build a one-page capability statement listing your equipment, certifications, and service radius
- Visit property managers directly—bring proof of liability insurance and any relevant licenses
- Offer a free first camera inspection to apartment complexes or restaurant groups as a foot-in-the-door
- Price preventive contracts at 10–15% below what an emergency call would cost them annually
Municipal work requires bonding and sometimes prevailing wage compliance, so factor that into your overhead before bidding.
Fix Your Digital Presence and Lead Flow
Most drain and sewer businesses get reviews sporadically and have a website built in 2017 with no booking capability. That's a growth ceiling.
Concrete steps to fix this:
- Set up automated review requests via text after every closed job—Google reviews above 4.5 with 50+ reviews meaningfully improve local pack rankings
- Make sure your Google Business Profile lists every service: sewer camera, hydro-jet, pipe lining, grease trap, etc.—not just "plumber"
- Add a real-time booking or callback request form to your site
- List your business on a marketplace like Mercoly, where homeowners and property managers actively search for drain cleaning and sewer specialists, so you can get found, capture leads, and showcase your services and products directly
Local SEO for drain cleaning is highly competitive, but long-tail terms like "hydro-jetting service [city]" or "sewer camera inspection near me" convert at a high rate and are often less contested than generic "plumber" queries.
Track the Numbers That Actually Matter
Revenue is vanity. Know your job profitability by service type. A $200 drain clearing that takes 45 minutes and requires no materials is more profitable than a $1,800 lateral repair that requires two techs, a permit, and equipment rental.
Track at minimum:
- Revenue per truck per day (target: $1,200–$2,000+ in drain/sewer)
- Average ticket by service type
- Lead-to-booked rate from every channel
- Customer acquisition cost by source
Review these monthly, not quarterly.
Growth in drain cleaning and sewer service is available to any operator willing to standardize pricing, build the right team ahead of demand, and put their business in front of customers who are actively looking—so start with the one checklist item that will move the needle fastest and act on it this week.