1701 38th Avenue West
Spencer, IA 51301
(712) 339-1290
What a crazy summer it's been across most of the country. Whether you've had floods, hail, tornadoes, straight line winds, snow, blistering heat or any other craziness, it's been a season for the ages. With all of the unique pressures impacting many in the contractor market, it's been hard to get as many jobs as you'd like to get done. It brings up something an older gentleman told me a long time ago; working smarter...
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Thank the heavens, the snow is melting! If you're from anywhere north of Missourri you're probably thinking this. Winter was hard and long and while that meant many got some extra income via snow plow season, many others have had a delay to their start of the year and are in fear of losing jobs that won't be able to be done.

We are here to tell you there's a better way. Our product line was designed to save you time...
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Ground Effect is an innovative attachment line for construction, farm or landscaping use. Our flagship product is the soil finisher that comes in 3 different sizes and has mounts for most skid steers, dingo style machines, or tractors. Fully adjustable gauge wheels, rubber torsion pivot points, and collapsible flex link design are the key elements to superior functionality. This attachment requires no external power...
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Get a Jump on Spring with a Ground Effect Soil Finisher  
It's spring, and if Mother Nature wreaked havoc on your lawn with wind, snow, ice and run offs you may have a mess to clean up. It’s not too late to make your plans on how to deal with these issues on a permanent basis. Dirt work now will help your lawn to look beautiful come summer. You'll be ahead of the game this summer when you see your seeded areas thrive,...
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SIDEWALK & CURB EDGER

Do you have a hard time finding qualified help to run shovels? Is it more important to you to stick your quality help on jobs more important than running shovels?
If you've answered either of these questions with a yes then this piece of equipment deserves some serious consideration. This machine will save you time and allow you to get jobs done easier. There are attachment...

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Investing in Quality Equipment Increases Your Overall Profit Over Time
No matter the size of your landscaping business, it is important to invest in high-quality equipment right from the start. When you purchase equipment that has a solid reputation, you are making an investment in your own reputation. You won't waste money on equipment that will break down easily. It only makes sense that your business can only be as...
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The Ground Effect lineup of products are manufactured and assembled in our Simonsen Iron Works plant in Spencer, IA. We don't just manufacture our own products, we manufacture a variety of products for many known brands.

State-of-the-Art Manufacturing

Established in 1906, Simonsen Iron Works is a fully integrated, state-of-the-art, advanced manufacturing operation located in Spencer Iowa.  Simonsen specializes in...

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Our Ground Effect Soil Finisher is built to handle the toughest work on the job site or the farm. The Soil Finisher is perfect for horse arenas, new construction soil finishing, and landscaping or seed be preparation. You can even level out gravel and dirt for parking lots, baseball diamonds, or other high traffic track areas with uneven terrain.

The Soil Finisher works with a variety of attachments, including most...

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The Ground Effect Vegetation and Sod Cutter is one of our newest products and is quickly becoming a leader out in the field. This new addition to the Ground Effect lineup doesn’t take external power, has mounts for many equipment types, and is easy to operate.

It undercuts vegetation from construction sites or cuts traditional sod for resale or removal with your skid steer or 3-Point tractor. The Vegetation and Sod...

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At Ground Effect, we saw a need for a premium edger built for the toughest sidewalk and curb jobs. It was developed to save on man hours and complete concrete work quickly by limiting shovel work. For new construction or new pours, the Sidewalk and Curb Edger grades dirt directly to the pour, which works with a combination of attachments.

Blades are angular adjustable and come with a horizontal gauge wheel that...

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1701 38th Avenue West
Spencer, IA 51301
(712) 339-1290