Hydroseeding Pricing Calculator
Price a hydroseeding job from tank loads: slurry loads, seed, mulch and tackifier at cost, crew time per load, travel and a job minimum. No price presets.
How this is calculated
The quote is a straight build-up from the area you measured, with the tank load as the unit the work is actually done in. Three things behave deliberately: loads round up, because a tank is mixed whole, so the tool prints how much ground the last load covers off the lawn and sizes the material on the mixed area unless you tell it otherwise; crew time scales with loads rather than area, because filling, mixing and rinsing is the same work whether a load sprays 2,000 or 3,000 sq ft; and drive time is tracked twice, landing in your cost in full and in the charge only for the share you choose to bill.
loads = ceil(area ÷ coveragePerLoad)
mixedArea = loads × coveragePerLoad
spare = mixedArea − area
matArea = mixWholeTanks ? mixedArea : area
lbs = (matArea ÷ 1,000) × ratePer1000 (seed, mulch, tackifier)
materials = (Σ lbs × pricePerLb + other) × (1 + markup)
onSite = loads × hoursPerLoad + extra
crewHours = onSite × crewSize
driveCrew = driveHours × crewSize
billedDrv = driveCrew × driveBillPct
labour = (crewHours + billedDrv) × chargeRate
quote = max(labour + materials + addOns, jobMinimum)
perSqFt = quote ÷ area
perLoad = quote ÷ loads
tax = quote × taxRate
cost = (crewHours + driveCrew) × costRate + materialsAtCost
margin = (quote − cost) ÷ quoteWorked example, the one the unit tests pin. A 10,000 sq ft lawn with a machine that covers 3,000 sq ft a load is 4 loads: 12,000 sq ft of slurry mixed, so 2,000 sq ft of it lands off the measured lawn. At 6, 45 and 3 lb per 1,000 sq ft that is 72 lb of seed, 540 lb of mulch and 36 lb of tackifier; at $4.00, $0.55 and $3.50 a pound plus $40 of fertilizer the materials cost $751, and marked up 15% they are charged at $863.65. At 0.75 hours a load plus half an hour of setup the job is 3.5 hours for one person, 7 crew-hours for two, and a further 1 paid crew-hour of drive. At $65 a crew-hour that is $455 of labour, so the quote lands at $1,318.65 before tax: about $0.13 per square foot, $329.66 a load and $164.83 per paid crew-hour. Put $45 a crew-hour of cost against it and the realised margin is 15.7%.
Why there is no seed, mulch or tackifier rate pre-filled. Those three numbers are a dosing decision, and the seed label, the hydromulch bag and the tackifier data sheet are the authority on them. A rate invented here would be a claim this page has no business making, so the boxes start empty. If you need the seeding rate for a species, the grass seed calculator carries the extension-cited figures in the same lb per 1,000 sq ft unit this page uses.
Coverage per load and time per load are placeholders, not benchmarks. Nothing published states how much ground one tank covers or how long a load takes, and it would not be one number if it did: coverage moves with your mulch rate, your machine and your nozzle, and load time moves with the water source and the hose pull. Both sit in editable boxes so the page has a shape on first load. Time and measure your own first three jobs, overwrite them, and the rest of the model becomes yours.
The margin check is all-or-nothing. With no cost per crew-hour the labour half of the job cost is unknown, so reporting a margin off the materials line alone would flatter every quote. Fill the box and the block appears; leave it empty and it stays hidden.
Everything runs in your browser. No account, no email gate, nothing stored or sent.
What this prices, and what it deliberately does not
Hydroseeding is priced badly more often than it is priced wrong, because the number most operators reach for is a rate per square foot they read somewhere. This calculator builds the quote the other way around: from the ground you measured, the tank loads that ground takes, the material those loads carry at your cost, and the crew-hours the loads consume. Then it runs the two checks a flat per-foot price hides, what the job returns per paid crew-hour and what the realised margin is once your crew’s loaded cost is set against it.
The load count is an intermediate line inside the price, not a takeoff. The tool counts loads because the labour and the material both scale with them, prints how much slurry the job mixes, and stops. If you want the ground measured first, the lawn area calculator runs the shape formulas and hands you the square footage this page starts from.
Every money field starts empty on purpose
Search for a hydroseeding price and you get two kinds of page: homeowner cost articles quoting each other, and equipment-vendor calculators pricing the finished job for the person buying it. Neither is an operator’s build-up, and nothing published by a regulator or a trade body sets an installed rate. Under this site’s cite-or-omit rule the tool ships with none of those figures, and it never presents a default as a market fact.
The material rates are blank for a different reason. The seed label, the hydromulch bag and the tackifier data sheet are the authority on how much of each goes in the tank, and a rate invented here would be a dosing claim this page has no business making. If you need a seeding rate by species, the grass seed calculator carries the extension-cited figures in the same pounds per 1,000 square feet unit the seed line here expects.
Coverage per load and time per load are the two numbers to make yours
Two boxes are pre-filled so the page has a shape on first load: how much ground one tank covers, and how long a load takes one person. Both are placeholders rather than benchmarks. Coverage moves with your mulch rate, your machine and your nozzle, and it drops the moment you thicken the slurry for a slope. Load time moves with the water source, the hose pull and whether the truck can get near the work.
Measure them once. Spray a job you have measured and divide, time three loads with a phone, then overwrite both boxes. From that point the rest of the model is yours rather than a sketch.
A tank is mixed whole, and that is a real cost
The coupling the tool refuses to hide: loads round up. A 10,000 square foot lawn at 3,000 square feet a load is four loads, which is 12,000 square feet of slurry, so 2,000 square feet of mixed material lands past the lawn. By default the seed, mulch and tackifier lines are sized on the ground the loads cover, because that is what actually goes in the tank and gets paid for. The page says how much of it lands off the job, and a single tick box sizes the material on the measured area instead when you genuinely carry the remainder to the next stop.
The second coupling is time. Crew hours come off the load count, not the area, because the fill, the mix and the rinse do not get shorter on a small lawn. That is why a scattering of small hydroseed jobs can fill a week and return less than one large one, and why the per-paid-crew-hour line on this page is worth more attention than the per-square-foot line under it.
Drive time is the line that decides a busy spring
Hydroseeding arrives in short seasonal bursts and the crew is paid for the whole day, windshield included. The tool tracks drive hours twice: they always land in your cost, because you pay for them either way, and only the share you nominate lands in the charge. Water runs and material runs are not drive time here, they are extra loads and extra load hours, which is where they belong.
The other way to establish a lawn
A customer choosing between hydroseed and sod is choosing between a cheap fast job with a wait and an expensive fast job with no wait, and it helps to have both numbers. Price the alternative on the sod installation pricing calculator, which builds the same way from pallets, tear-out and crew hours. If either job needs the grade built up first, the topsoil calculator sizes the cubic yards and you bring the cost back here as the materials line. This page prices the job, it does not size the soil.
Everything runs in your browser: no account, no email gate, nothing stored or sent. Estimate only, not a binding quote, and the product label and your machine manual are the authority on what goes in the tank.