Your rainwater harvesting business won't scale without skilled installers—but finding, hiring, and retaining the right people takes strategy. Knowing what roles you actually need, what to pay, and where to find talent separates growing companies from those stuck doing all the work themselves. Let's break down the installer landscape so you can build a team that moves projects faster and keeps customers happy.
The Core Installer Roles You'll Need
Most rainwater harvesting businesses operate with 2–4 core positions. A lead installer oversees site assessment, tank placement, and system integration; they typically earn $22–$35/hour or $45,000–$70,000 annually depending on region and experience. Plumbing specialists handle gutters, downspout routing, filtration connections, and pump installation—expect to pay $18–$28/hour. Greywater technicians focus specifically on graywater systems (shower, sink, and laundry water reuse), which require knowledge of local plumbing codes and valve configuration; they usually command $20–$32/hour.
For smaller operations, a versatile technician/installer who can handle both rainwater and basic greywater work is realistic at $16–$24/hour. Don't hire for a role you can't afford to keep busy; part-time or project-based contractors often make more sense early on.
Where to Find Qualified Installers
LinkedIn and Indeed remain reliable for posting, but they're crowded. Trade-specific forums and groups matter more—search Facebook Groups for "plumbers near [your area]" or "sustainable building professionals." Local plumbing unions and apprenticeship programs are goldmines; union members already have licensing and understand water systems.
Industry certifications raise your hiring odds significantly. Look for credentials like:
- ARCSA certification (American Rainwater Catchment Systems Association)
- IAPMO greywater installer training
- State-level plumbing licenses (varies by location; some states require them, others don't)
- Water management or stormwater certifications
Referrals from other rainwater companies (especially in non-competing regions) and local green builders often yield the best candidates. Don't overlook trade schools—instructors can recommend recent graduates hungry for field experience.
Wages & Benefits That Attract Talent
Skilled installers have options. Offering $20–$28/hour base for experienced technicians is competitive in most markets, but it's not just about hourly rate. Mileage reimbursement (typically $0.58–$0.67 per mile, or a fixed daily allowance) matters when installers travel between job sites. Tool allowances or tool provision (impact drivers, crimpers, trenching equipment) signal you're serious.
Benefits move the needle for retention:
- Health insurance contribution (even 50% of a basic plan keeps people longer)
- Paid time off (3–5 days annually for part-timers, 10+ for full-time)
- Equipment or uniform budget ($300–$500 annually)
- Fuel card or mileage tracking software
- Bonus for referrals or completing jobs ahead of schedule
A $24/hour technician with mileage reimbursement, a tool allowance, and health insurance buy-in costs you roughly $32–$35/hour fully loaded—but they're unlikely to leave.
Vetting Installation Skills (Beyond the Resume)
Experience matters, but specificity matters more. Ask candidates: "Walk me through your last rainwater system install, including tank sizing, overflow routing, and first-flush diverter configuration." Plumbers trained only on municipal water systems often miss rainwater-specific details like tank siting for sediment management or pump priming needs.
Request references from past employers, then actually call them. Ask about punctuality, code knowledge, and problem-solving (not just speed). A 30-minute site assessment with a candidate—watching how they measure, ask questions, and interact with a homeowner—reveals more than a phone screen.
Consider running a small paid trial project ($500–$1,500 scope) before bringing someone on permanently. You'll see their workmanship, communication, and reliability firsthand.
Getting Found and Growing Your Installer Base
Listing your services on Mercoly helps you get discovered by leads actively seeking rainwater and greywater installers, which means you can grow faster and keep your team busy. Consistent project flow makes hiring and retaining installers feasible.
Frequently Asked Questions
Q: Do I need to hire only licensed plumbers for rainwater harvesting installs? It depends on your state's plumbing codes; some require licensed plumbers for any water system work, while others allow certified technicians. Check your local building department's requirements before hiring anyone.
Q: What's a realistic on-boarding timeline for a new rainwater installer? Expect 2–4 weeks of job-shadowing and mentoring before they work independently, plus ongoing training as you take on more complex greywater or larger-capacity systems.
Q: Should I hire full-time or contract installers? Start with reliable contractors (1099s) until you have 3–4 consistent projects per month; that revenue predictability justifies a full-time salary.
Ready to scale? Post your installer needs and grow your team today.