Snow Removal Contracts and Bidding: Per Push, Per Inch, Per Event and Seasonal

The main ways to charge

The Snow and Ice Management Association (SIMA) glossary defines the common fee structures, and contractors often blend them. It also lists time and materials (hourly) pricing, which suits extras.

Writing in Landscape Management, Phil Harwood notes that per-occurrence contracts leave the cost of readiness (equipment, supplies, staff) unpaid in a light winter, while unlimited seasonal contracts add equipment and staffing strain in a heavy one. He recommends hybrids, and historical weather data to show customers why they work.

Trigger depth and the other ways a contract starts service

SIMA separates several terms that often get mixed up. A trigger depth is the agreed, measurable amount of accumulated snow or ice at which service is dispatched. An accumulation threshold is the agreed maximum amount of accumulation the customer will accept, which is a different promise. Service can also start on a forecast, a written request from the client or a snow professional's judgment during an ice watch.

Pick the trigger with the customer's risk in mind. A medical office that has to be clear before opening may want zero tolerance, while a storage yard may be fine waiting until two inches are down. Whatever you choose, write the number, where it is measured and by whom.

What weather records to keep

SIMA says service verification (records of location, materials, weather and site conditions) supports accountability, billing, risk management and production rate tracking. For snow work, keep:

• Event start and end times, with the date.
• Snowfall at the site and how it was measured, plus the total from the official station named in the contract.
• Air and surface temperature when you treated, and any freezing rain, sleet or overnight refreeze.
• For each visit: arrival and departure times, the lot or route, services done and the weather at that moment, as in the SIMA service report.
• Materials applied, by type and amount, and photos or video before and after.
• The forecasts and official warnings that were in effect.

WDS business customers get certified, address-level snow reports automatically after measurable snowfall (see the snow removal solutions page). For one storm at one address, Free Snow Report, powered by 4070 and built by Weather Decision Solutions, gives three free verified snow reports per verified email for addresses in the lower 48 states and southern Canada.

Estimating and bidding with seasonal snowfall history

1. Pull the nearest long-record station. NOAA's NCEI climate normals are 30-year averages (the current set covers 1991 to 2020) of temperature, precipitation and other variables from nearly 15,000 stations.
2. Do not stop at the average. Count the events of each size in each of the last 10 or more winters, so you can see a light, a typical and a heavy winter. SIMA's resource allocation projection combines trigger depth, completion times and historical accumulation amounts and frequency.
3. Time the work. Use your own production rate (how long a crew and truck take on this lot) and cycle time (one pass of the site or route) to get hours and materials for one push.
4. Price each winter. Multiply pushes by your price per push for the light, typical and heavy cases, then decide how much of the swing you carry.
5. Add the cost of being ready. Equipment, standby labor and materials are spent even in a light winter.

Worked example (illustrative numbers)

Say a 2-acre lot is priced at $450 per push, and the nearest station shows a light, a typical and a heavy winter of 5, 9 and 14 pushes. These numbers are made up to show the arithmetic. They are not a price quote or an industry benchmark.

Per push pays for exactly the work done and leaves you holding readiness cost in the light winter. The flat fee collects $2,250 more than per push pricing in the light winter and $1,800 less in the heavy one. The hybrid gives you a floor in the light winter and still pays for the extra work in the heavy one. Show the customer all three winters side by side.

The WDS site-specific winter forecast, from $199 per site, is a long range outlook for preseason planning of staffing, salt and pretreatment. Daily dispatch calls need a short range forecast.

Measurement source and disputes

Most snow disputes start with one question: how much fell? The airport can report two inches while the lot has four. Put the answer in the contract.

Pick one source and name it: an official station by identifier, your own measurement taken in a stated way, or a third-party report. The NWS snow measurement guidelines describe a consistent method. Measure on a flat snow board placed where drifting is minimal, read to the nearest tenth of an inch as soon as the snow ends, and clear the board no more often than every 6 hours during an event. In windy places, average several readings (typically three or more) and leave out the largest drifts and plowed piles.

For a verified total at a specific address and storm, Free Snow Report covers storms of up to three days from the last ten years and emails two PDFs: a Verified Report with the storm total and a Full Report with the daily record at the official station and nearby observers. A contract can name a report like that as the tie-breaker. For heavier documentation, WDS prepares forensic weather reports signed by a degreed meteorologist.

Snow contract clause checklist

• Sites and the areas included (lots, walks, roofs, hauling).
• Fee structure and price for each service, plus an hourly rate for extras.
• Trigger depth and any other service initiator, and the accumulation threshold if there is one.
• Level of service and completion times (SIMA: expected surface conditions at specific times).
• Definition of an event: when it starts, when it ends, and how long a gap makes the next storm a new event.
• Ice events: whether freezing rain, refreeze and black ice calls are included, and who decides when to treat.
• Measurement source and method, and a tie-breaker source for disputes.
• Materials: type, whether included in the price, and any caps.
• Cap and floor for seasonal agreements, and the price beyond the cap.
• Records: service reports shared with the customer and how long you keep them.
• Dispute process: who raises it, how soon, what evidence each side supplies and who decides.
• Customer duties (access, moving vehicles) and what happens when work cannot be done.
• Insurance, indemnity, liability, term, renewal and termination. Ask your lawyer and your insurer.

To see how WDS works with snow and ice operations, or to time your treatments, read the guide to when to salt.

Frequently asked questions

Sources

Sources checked October 6, 2026. Worked-example numbers are illustrative and come from no source.

1. Snow and Ice Management Association, Snow & Ice Management Standard Glossary of Terms (updated December 1, 2017, PDF)Definitions of per event, per season, per service, trigger depth, accumulation threshold, service initiator, service report, service verification, cap and floor.
2. Phil Harwood, Selling win-win snow contracts, Landscape Management (August 17, 2020, updated November 3, 2023)Risk trade-offs of per-occurrence, unlimited seasonal and hybrid contracts.
3. NOAA National Weather Service, Snow Measurement Guidelines for National Weather Service Surface Observing Programs (September 2013, PDF)Snow board, tenth-of-an-inch reading, 6-hour clearing interval, averaging in windy places.
4. NOAA NCEI, U.S. Climate Normals30-year averages, the 1991 to 2020 period, and station coverage.

More guides

• When to Salt: Pretreat, Deice and Pavement TemperatureAnti-icing versus deicing, why pavement temperature matters, how salt weakens near 15°F, and sourced starting rates for lots.
• Construction Weather Delays and Concrete LimitsWhat counts as a weather day, how to document delays against climate normals, and cold and hot weather concrete limits.
• All 5 guides