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*The Angi rating for Lawn Irrigation companies in Spearfish, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Irrigation needs.

*The HomeAdvisor rating for Lawn Irrigation companies in Spearfish, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Irrigation needs.

Last update on May 22, 2026

Top-Rated Lawn irrigation specialists in Spearfish - Updated Nov 2026

Avatar for Valley Construction Co.
Valley Construction Co.
5.0(
2
)
Lawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - RepairSprinkler System for Lawn and Garden - Winterize or Activate

Serving Spearfish, SD and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

As a local member of the community, I have been in the construction industry for just over 10 years. With experience ranging from general construction needs, to light electrical, and plumbing I have the knowledge it takes to complete a job on time and with excellent quality. \n\nWhy pay more for a large contractor to provide you a simple service when you can save money and have some peace of mind knowing a local member of the community is taking care of your needs and providing exactly what you need.

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Avatar for Second Nature
Second Nature
0.0(
2
)
Lawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Install - For BusinessLawn and Garden Sprinkler System - Repair+2 more

Serving Spearfish, SD and surrounding areas

In business since 2005

Free estimates

Credit card accepted

Here at Second Nature, we have been serving Rapid City, SD and surrounding areas since 2005. We offer high quality service at a fair price. We provide the expertise you are looking for while delivering the professionalism you expect. We also understand that doing the job right, the first time, is of great value to our customers. Contact us today for more information.

Recommended by100%of homeowners
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J&J Construction
New to Angi
Lawn and Garden Sprinkler System - InstallSprinkler System for Lawn and Garden - Winterize or Activate

Serving Spearfish, SD and surrounding areas

In business since 1995

Free estimates

J&J Construction Inc. has a single mission: Complete Customer Satisfaction! We strongly believe in giving our customers the most for their money. So, we work with only the highest quality materials, experienced and professional craftsmen. We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience

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Avatar for Joe's Sights And Sounds
Joe's Sights And Sounds
New to Angi
Lawn and Garden Sprinkler System - Install

Serving Spearfish, SD and surrounding areas

In business since 2021

Free estimates

Joe's Sights And Sounds is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
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Lawn Irrigation FAQs, answered by experts

Slit seeding takes about two to three hours for a medium or large lawn. Even bigger lawns or commercial properties can be seeded in about one day. From there, it will take about two weeks for the grass to start growing and another six weeks for the grass to establish stronger roots.

While it’s possible to grow grass seeds by throwing them down, this isn’t the best way to plant them. By amending and prepping the soil beforehand, you’re providing optimal contact between seed and soil for a better chance at germination. If you throw them down without preparing the soil beforehand, seeds are more likely to blow away, get eaten by hungry birds, or never grow.

The best way to fix a lumpy yard depends on the cause. However, in many cases, you can address yard lumps by improving the health of your soil and turfgrass. Choose grass varieties that are best suited for your area and look for disease-resistant varieties. Fertilize and water your lawn as needed to keep it looking lush throughout the warmer months. Mow your grass at a height of 2 to 3 inches once or twice a week.

Services typically include mowing, edging, trimming, and debris cleanup. Additional options may consist of fertilization and weed control.

While hydroseeding is designed for bare soil, it is possible to apply it over an existing lawn with certain adjustments. For the new seed to be successful, it needs good seed-to-soil contact to germinate and take root. Without proper preparation, most of the new seed will fail to establish and will die. To hydroseed over existing grass, first mow the lawn as low as possible, then loosen and clear any exposed soil. It is also recommended to use a finer mulch mixture in the hydroseed spray, which helps the seeds penetrate the existing turf and reach the soil without suffocating the established grass.

The Spearfish, SD homeowners’ guide to lawn irrigation services

From average costs to expert advice, get all the answers you need to get your job done.

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