How to Price an Irrigation Job: Zones, Heads, Pipe, Margin

Price an irrigation job by designing it first: measure the water supply, lay out the zones, and count every head, valve, and foot of pipe and wire. Cost those parts at what you actually pay, add the backflow preventer, the controller, and the permit as their own lines, and cost labor by phase at a loaded rate for the hours your crew really works. Add the trencher or pipe puller and your overhead, then divide by one minus your target margin: Price = (materials + loaded labor + equipment + permit + overhead) ÷ (1 − target margin). A price per zone or per head is a result of that math, never the starting point. CRMb costs those hours from your crew's punch-ins and prices parts at real average cost, so the next irrigation bid starts from what the last one actually took.

Irrigation is sold by the zone and lost by the foot. Two yards with six zones each can differ by 400 feet of pipe, a rock ledge under the back lawn, and a water meter on the wrong side of the driveway. A flat rate per zone treats them as the same job. This guide builds a sprinkler system price from the water supply out, shows a full worked example, and covers the lines that most often go missing from an irrigation bid.

The seven things every irrigation job costs

1. The point of connection: the tap into the main, the shutoff, and the backflow preventer.
2. Control: the controller, a rain or soil sensor, and the wire to every valve.
3. Valves and manifolds: one valve per zone, valve boxes, and manifold fittings.
4. Heads and emitters: rotors, sprays, nozzles, swing joints, and drip tubing for beds.
5. Pipe and fittings: mainline, lateral lines, tees, elbows, clamps, and glue.
6. Labor: layout, trenching or pulling pipe, assembly, wiring, testing, and cleanup, at a loaded rate.
7. Equipment, permit, and overhead: the trencher or pipe puller, the permit and backflow test where they are required, and the share of trucks, insurance, and office time this job has to carry.

A bid that covers heads and pipe and forgets the backflow assembly, the permit, or the day of machine rental can be several hundred dollars short before the crew arrives.

Step 1: measure the water before you count a single head

The water supply decides how many zones the yard needs, and the zone count drives almost every other cost. At the walkthrough, record:

• Static pressure at a hose bib, with a gauge.
• Flow, in gallons per minute. Time how long the supply takes to fill a five-gallon bucket, or read the meter size and service line.
• Where the water comes in, and how far that is from where the valves will sit.

Each head uses a known flow. Add up the heads you want on one zone, and if the total is more than the supply can deliver with a safety margin, that zone becomes two. A yard with strong flow might run on five zones. The same yard on a weak supply needs eight, which means three more valves, more wire, more pipe, and more hours. Pricing before you know the flow is guessing at the largest variable in the job. A job site walkthrough checklist keeps these readings from being skipped.

Step 2: lay out zones and count heads

Sketch the property and group areas by what they need:

• Lawn in full sun and lawn in shade on separate zones, because they need different run times.
• Rotors and sprays on separate zones. They put down water at very different rates and cannot share a valve.
• Beds and shrubs on drip, on their own zone with a filter and pressure regulator.
• Slopes on their own zone when runoff is a risk.

Place heads so each one throws to the next (head-to-head coverage), then count: rotors, sprays, nozzles, and feet of drip tubing. This count is the takeoff. It is also the first thing to revisit after the job, because a design that needed four more heads than you drew is four heads you did not charge for.

Step 3: cost pipe, wire, valves, and fittings from the layout

Measure the runs on the sketch:

• Mainline from the point of connection to each valve or manifold.
• Lateral lines from each valve to its heads. Add about 10% for routing around roots, walks, and utilities.
• Wire from the controller to every valve, plus a spare conductor or two for a future zone.
• Sleeves under driveways and walks. If there is no sleeve, boring under concrete is its own line with its own hours.

Fittings, swing joints, clamps, primer, and glue are a real cost, commonly a tenth or more of the parts bill. Price them as a line, not as a rounding error. Mark up parts deliberately; the materials markup guide covers how much and why. If you stock common parts on the truck, cost them at what you paid on average, not at the last receipt.

Step 4: put the backflow preventer, controller, and permit on their own lines

These three are the same on a small yard and a large one, which is why a per-zone rate handles them badly.

• Backflow preventer. Most water authorities require one on an irrigation system, and the type they accept varies by area. Check the local rule before you quote; the wrong assembly is a failed inspection and a second purchase.
• Controller and sensor. Price the one you will actually install. Offering a basic and a smart controller as options is an easy good, better, best quote.
• Permit and backflow test. Where they are required, they are a pass-through cost plus the time to file and meet the inspector. Put both on the quote.

Call the utility locating service before digging, and state in the scope of work that private lines the locator does not mark, such as lighting wire, invisible dog fence, and drain lines, are the owner's to point out.

Step 5: cost labor by phase, from real hours

Break the install into phases and estimate crew-hours for each:

• Layout and flagging
• Main tap, backflow, and manifold
• Trenching or pulling pipe
• Heads, swing joints, and drip
• Wiring and controller
• Flush, pressure test, adjust, and customer walkthrough
• Backfill and cleanup

Multiply the total by a loaded rate, not the wage. The labor burden rate guide shows how to add payroll taxes, workers' comp, and benefits.

Soil changes the hours more than anything else. A pipe puller in soft loam can lay a zone in under an hour. The same zone in rocky or root-bound ground, or in a finished yard where every trench has to be cut and re-laid by hand, can take four times as long. Note the soil at the walkthrough and price it. If you keep hours by phase on past jobs, you will know your own number for each condition instead of borrowing someone else's.

Step 6: add equipment and overhead, then price to a margin

A trencher or pipe puller is a job cost whether you rent it or own it. If you own it, charge the job an hourly rate that covers payments, fuel, repairs, and replacement; the equipment cost per hour guide shows how to set it.

Then add overhead as a rate per labor hour (the overhead rate guide has the method), and price to a margin, not a markup. A 30% markup on cost is a 23% margin. The markup vs margin guide explains the difference. To price to a margin, divide total cost by one minus the margin.

A worked example: a six-zone residential system

A quarter-acre lot with front and back lawn and planting beds along the house. The supply supports five lawn zones and one drip zone: 14 rotors, 22 sprays, and drip in the beds. Soil is workable, there is a sleeve under the front walk, and the town requires a permit and a backflow test. These figures are an example; use your own prices and hours.

Materials

Labor (crew of three, loaded rate $46 per hour)

Everything else

• Pipe puller rental, one day: $260
• Permit and backflow test: $185
• Overhead at $22 per labor hour × 44 hours: $968

The price

• Total cost: $2,370 + $2,024 + $260 + $185 + $968 = $5,807
• Target margin 30%: $5,807 ÷ (1 − 0.30) = $8,295
• Gross profit: $2,488

That works out to about $1,383 per zone, or $230 per head across the 36 heads. Now look at what a flat per-zone rate hides. The controller, backflow assembly, permit, and machine rental come to $945 in cost and would be the same on a four-zone yard, where they would push the true cost per zone well above this one. And if the back lawn had turned out to be rocky, pulling pipe could have doubled from 14 hours to 28, adding $644 in labor and $308 in overhead to a job whose price was already signed.

Per zone, per head, or by the job

• Estimate internally from the takeoff and the hours. It is the only method that sees the difference between two yards.
• Quote the customer a total with clear lines: system installation, backflow and permit, controller, drip for beds. A customer who can see the lines is less likely to compare your total with a competitor's per-zone teaser.
• Check yourself with per-zone and per-head figures after the math. If this job comes out far above or below your usual range, find out why before you send it.

Repairs, additions, and seasonal service

Not every irrigation job is a new system.

• Repairs need a minimum charge that covers the trip, the diagnosis, and the first hour, with parts on top. Finding a broken wire or a buried valve is skilled time; bill it.
• Adding a zone depends on whether the controller has a spare station, the manifold has room, and the supply has flow to spare. Check all three before quoting.
• Spring start-ups, mid-season checks, and winterization are the steadiest revenue in the trade. Price them per visit by zone count and sell them as an annual agreement at the time of install. The recurring maintenance contracts guide covers how to structure and price one.

If the same customer also buys mowing or bed work, the landscaping pricing guide and the lawn mowing pricing guide use the same cost-plus-margin method.

Protect the bid: rock, roots, and what is already buried

Write the unknowns into the quote before they cost you:

• State that the price assumes soil that can be trenched or pulled with standard equipment.
• Give an hourly rate for hand digging and for rock or heavy roots, billed after the customer approves it.
• Exclude repair of unmarked private lines.
• Say what restoration is included: backfill and seed along the trench lines, not new sod across the yard, unless you priced sod.

When the crew hits rock on the second zone, stop and write a change order at the rate already in the quote. Collect a deposit before work that covers the parts order, since a controller and backflow assembly bought for one yard are not always easy to return. After the job, a post-job profitability review of hours by phase turns this install into a better estimate for the next one.

Frequently Asked Questions

How do you price a sprinkler system installation?

Design the system first, then price the design. Measure pressure and flow, lay out the zones, count heads, valves, pipe, and wire, and cost them at what you pay. Add the backflow preventer, controller, permit, labor by phase at a loaded rate, equipment, and overhead. Divide the total cost by one minus your target margin.

How much should I charge per zone for irrigation?

There is no single right rate. The fixed parts of a system, such as the backflow assembly, controller, and permit, cost the same on four zones as on ten, so the true cost per zone falls as the system grows. Build the price from the takeoff and hours, then divide by the zone count to see your rate.

How many sprinkler heads can go on one zone?

As many as the water supply can run at once. Add the flow of each head on the zone and keep the total under the available gallons per minute with a safety margin. Rotors and sprays go on separate zones because they apply water at different rates.

Should the backflow preventer be a separate line on the quote?

Yes. It is a required part in most areas, it often needs a permit and a test, and its cost does not change with the size of the yard. A separate line shows the customer what it is and keeps it from being absorbed into your per-zone price.

How do I price irrigation work in rocky soil?

Price the base job for soil you can trench or pull with standard equipment, and state that assumption in the quote. Add an hourly rate for hand digging, rock, and heavy roots, and bill it as a change order the customer approves when the crew finds them.

How long does it take to install a residential sprinkler system?

It depends on zone count, soil, and how much of the yard is finished landscape. A crew with a pipe puller in workable soil moves several times faster than the same crew hand trenching through roots. Track your own hours by phase on each install and estimate from those.

Getting started with CRMb

Price your next irrigation job from the design. Measure the water, lay out the zones, count heads and pipe, put the backflow preventer, controller, and permit on their own lines, cost labor from the hours your crew actually works, add equipment and overhead, and send a quote the customer can approve from their phone.

CRMb brings the CRM, scheduling, average-cost inventory, purchasing, quotes and invoices, and job costing on real punched hours into one app, on Mac, iPad, and the web. Start your 14-day free trial and bid your next job on numbers you can trust.