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Verified Reviews for Lawn Fertilization And Treatment pros in Washington, MO

*The Angi rating for Lawn Fertilization And Treatment companies in Washington, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Fertilization And Treatment needs.

*The HomeAdvisor rating for Lawn Fertilization And Treatment companies in Washington, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Fertilization And Treatment needs.

Last update on October 05, 2025

Find Lawn fertilization and treatment specialists in Washington

Locker Lawn Service, LLC

No reviews yet

Locker Lawn Service, LLC

No reviews yet

We utilize a gentle low-pressure SOFT WASH as a superior alternative to power washing. The 100% biodegradable cleaning solutions will leave behind a barrier for a longer lasting clean. CALL FOR A FREE ESTIMATE TODAY: Commercial & Residential -House washing -Driveways - Walkways -Roofs

We utilize a gentle low-pressure SOFT WASH as a superior alternative to power washing. The 100% biodegradable cleaning solutions will leave behind a barrier for a longer lasting clean. CALL FOR A FREE ESTIMATE TODAY: Commercial & Residential -House washing -Driveways - Walkways -Roofs

Elevate Outdoor

1112 Bryan Rd.
No reviews yet

Elevate Outdoor

1112 Bryan Rd.
No reviews yet
27 years of experience

Elevate Outdoor is the #1 landscape design-build company in the greater St. Louis area. We specialize in creating beautiful outdoor living spaces and gardens for high-end residential clients, as well as professionally constructed commercial projects. Our focus is to unify all elements of your outdoor environment to create beautiful settings, usable spaces, and functional properties.

Elevate Outdoor is the #1 landscape design-build company in the greater St. Louis area. We specialize in creating beautiful outdoor living spaces and gardens for high-end residential clients, as well as professionally constructed commercial projects. Our focus is to unify all elements of your outdoor environment to create beautiful settings, usable spaces, and functional properties.

Handyman

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Handyman

No reviews yet

I can do pretty much anything from lawn work, mechanical, building, cement work, to heavy equipment operating.

I can do pretty much anything from lawn work, mechanical, building, cement work, to heavy equipment operating.

Aspen Lawn Services

18 Highland Ave
No reviews yet

Aspen Lawn Services

18 Highland Ave
No reviews yet
7 years of experience

A Top-Tier Landscaping Service Since 2018, Aspen Lawn Services has built a reputation off reliability and supreme quality. Previously operating as Labrador Lawns, we have built our name in the industry in the state of Illinois and now we are the go-to Landscaping Service for the Greater St. Louis area. We are a team of experienced professionals, here to assist with your residential or commercial needs.

A Top-Tier Landscaping Service Since 2018, Aspen Lawn Services has built a reputation off reliability and supreme quality. Previously operating as Labrador Lawns, we have built our name in the industry in the state of Illinois and now we are the go-to Landscaping Service for the Greater St. Louis area. We are a team of experienced professionals, here to assist with your residential or commercial needs.

J&M Lawn Care & tree service

No reviews yet

J&M Lawn Care & tree service

No reviews yet

Here at J&M we thrive to make each and every customer 100% satisfied. We will leave your yard better thin we found it. J&M is not a large corporation we are a small family owned business. I myself have been in this business For 10 years

Here at J&M we thrive to make each and every customer 100% satisfied. We will leave your yard better thin we found it. J&M is not a large corporation we are a small family owned business. I myself have been in this business For 10 years

GROW Lawn Care

5581 HWY 21
2.38(
16
)

GROW Lawn Care

5581 HWY 21
2.38(
16
)
16 years of experience

We are the premier Lawn Care company in the St Louis area. We tailor our program to meet your needs rather than simply treating everyone the same way. Our goal is to get your lawn on track with a specific plan and then help you maintain a lawn that you will be proud of.

"These guys are crooks. Paid $475 for christmas lights in October 2023. Kept making excuses for why lights were not installed. Finally, two weeks before christmas, they told me they could not get to me and would refund all my money and put them up next year for free. Have called multiple times. It's now April and I still dont have my money back. Scammers....."

Harriet S on April 2024

We are the premier Lawn Care company in the St Louis area. We tailor our program to meet your needs rather than simply treating everyone the same way. Our goal is to get your lawn on track with a specific plan and then help you maintain a lawn that you will be proud of.

"These guys are crooks. Paid $475 for christmas lights in October 2023. Kept making excuses for why lights were not installed. Finally, two weeks before christmas, they told me they could not get to me and would refund all my money and put them up next year for free. Have called multiple times. It's now April and I still dont have my money back. Scammers....."

Harriet S on April 2024

Heartland Payroll & HR Solutions

...
No reviews yet

Heartland Payroll & HR Solutions

...
No reviews yet

Employee Management that focuses on unrealized tax credits, cash flow and compliance. Whether you are looking for a simple payroll solution or a complete hire to retire workforce management solution, myself and Heartland are here to help. Applicant Tracking, Electronic Onboarding, e-Verify, Scheduling, Timekeeping, Accrual Tracking, Payroll Processing, HR Administration. Video: https://www.youtube.com/watch?v=yvDotpAluqc

Employee Management that focuses on unrealized tax credits, cash flow and compliance. Whether you are looking for a simple payroll solution or a complete hire to retire workforce management solution, myself and Heartland are here to help. Applicant Tracking, Electronic Onboarding, e-Verify, Scheduling, Timekeeping, Accrual Tracking, Payroll Processing, HR Administration. Video: https://www.youtube.com/watch?v=yvDotpAluqc

Union Grass Company

890 N Oak
1.00(
1
)

Union Grass Company

890 N Oak
1.00(
1
)
8 years of experience

billing is by the job. 10% off first cutting.

"Bryan the owner does not do what he says he'll do. He lied about when he was going to finish my retaining wall project. It has now been 8 weeks and it is still not done!!!! It has been 3 days since they have been to my house!!! He refuses to return my phone calls or emails. I am in the process of getting another contractor to finish the job. One contractor found a bow in the wall that might have to be replaced. This man is a home owner worst nightmare!!!!"

Jim D on May 2018

billing is by the job. 10% off first cutting.

"Bryan the owner does not do what he says he'll do. He lied about when he was going to finish my retaining wall project. It has now been 8 weeks and it is still not done!!!! It has been 3 days since they have been to my house!!! He refuses to return my phone calls or emails. I am in the process of getting another contractor to finish the job. One contractor found a bow in the wall that might have to be replaced. This man is a home owner worst nightmare!!!!"

Jim D on May 2018

Dehn's Lawn Care, LLC

No reviews yet

Dehn's Lawn Care, LLC

No reviews yet

Dehn's Lawn Care, LLC provides a professional Lawn Care Service for people in Union, MO. So pick up the phone and call us now at (636) 584-2748 or visit our website. Make the right move by choosing our professionals.

Dehn's Lawn Care, LLC provides a professional Lawn Care Service for people in Union, MO. So pick up the phone and call us now at (636) 584-2748 or visit our website. Make the right move by choosing our professionals.

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FAQs for lawn fertilization and treatment projects in Washington, MO

The cost to reseed or overseed a lawn is about $1,050 on average, ranging from $450 to $1,700, depending on lawn size, seed type, and location. Popular seed types for residential lawns include bahia, fescue, and Bermuda. Keep in mind that it costs $0.10 to $0.20 per square foot to seed or overseed a lawn. Additional cost factors may include:

  • Fertilization: $80–$400

  • Soil testing: $700–$2,100

  • Yard cleanup and leaf removal: $200–$560

  • Treating weeds: $110–$325

  • Mowing: $50–$210

On average, the cost of lawn fertilization is $250, ranging from $80 to $400, depending on the size of the lawn, its current condition, additional treatments, number of applications, fertilizer type, and location. Keep in mind that labor, tools, and equipment make up 80% to 90% of the total cost of lawn fertilization. Additional lawn treatment options include:

  • Lime treatment: $100–$150 per 1,000 square feet

  • Crabgrass treatment: $30–$80

  • Grub treatment: $30–$80

  • Mulching: $150–$400

  • Dethatching: $265–$295

The frequency with which you should fertilize your lawn depends on its overall health. Healthy lawns with healthy soil may only need to be fertilized annually. On the other hand, you may need to fertilize lawns with shallow roots, poor soil, or neglected or over-fertilized every six weeks. To determine the best fertilizing schedule for your lawn, consider hiring a professional lawn fertilizing service and consult them about recommended frequency based on your lawn’s health.

Lawn aeration costs between $75 and $350 on average, depending on the size of the lawn, aeration type, slope of the lawn, soil type, lawn prep, and location. Keep in mind that it costs an average of $0.10 to $0.35 per square foot to aerate a lawn that’s less than 1,000 square feet. Different types of lawn aeration include: 

  • Spike aeration: $85

  • Core aeration: $200

  • Liquid aeration: $75

Whether organic or synthetic fertilizers are better for your lawn depends on your goals, budget, and plans for other lawn treatments. Organic fertilizer costs more but is likely to benefit your lawn more in the long run by improving the soil as well as feeding your grass. Synthetic fertilizers get faster results but don’t enrich the soil and may contaminate nearby bodies of water if you live on a shoreline. A hybrid fertilizer may be an option to give you the benefits found in both organic and synthetic fertilizers.

The Washington, MO homeowners’ guide to lawn fertilization and treatments

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

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