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Verified Reviews for Lawn Fertilization And Treatment pros in Valley, WA
*The Angi rating for Lawn Fertilization And Treatment companies in Valley, WA 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 Valley, WA 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 December 11, 2025
Find Lawn fertilization and treatment specialists in Valley
Omega Spray Service
Omega Spray Service
Omega Spray Service is a locally, family owned and operated company based out of Spokane, WA. We are here to help you with any of your lawn and tree fertilization and pest control needs. Please reach out today!
"Omega contacted me immediately. They were clear about their schedule and came when they said they would. Their prices were very reasonable."
Rebecca K on August 2025
Omega Spray Service is a locally, family owned and operated company based out of Spokane, WA. We are here to help you with any of your lawn and tree fertilization and pest control needs. Please reach out today!
"Omega contacted me immediately. They were clear about their schedule and came when they said they would. Their prices were very reasonable."
Rebecca K on August 2025

Dundee Concrete and Landscape
Dundee Concrete and Landscape
Dundee is locally owned and operated and has been for over 19 years. We have experience in all areas of landscape, including, but not limited to, retaining walls, asphalt, pavers, astro turf, irrigation/sprinklers, sod/hydroseed, fill dirt, grading, water features, fire pits, french drains. We also specialize in concrete curbing, concrete driveways, patios, some excavation work, and full yard maintenance, commercial mowing, including custom fertilization, aerations/thatching, pest control/bugs and yard clean-ups. We would love to help you take care of any project and look forward to meeting your every expectation. Additional DBA - Dundee Excavation LLC.
Dundee is locally owned and operated and has been for over 19 years. We have experience in all areas of landscape, including, but not limited to, retaining walls, asphalt, pavers, astro turf, irrigation/sprinklers, sod/hydroseed, fill dirt, grading, water features, fire pits, french drains. We also specialize in concrete curbing, concrete driveways, patios, some excavation work, and full yard maintenance, commercial mowing, including custom fertilization, aerations/thatching, pest control/bugs and yard clean-ups. We would love to help you take care of any project and look forward to meeting your every expectation. Additional DBA - Dundee Excavation LLC.

Northscape landscaping
Northscape landscaping
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Jory was very professional and did a nice job. Would hire again"
david n on September 2025
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Jory was very professional and did a nice job. Would hire again"
david n on September 2025
Senske Pest Control
Senske Pest Control
Senske Servcies began as a small lawn care and pest control company in 1947 by Bill Senske in Spokane, Washington. During the 1960's, chemical weed and pest control began to grow, expanding the family business. In the 1080's, after four successful decades, Bill Senske handed over the reins to his youngest son, Chris. Chris expanded the family business into new territories including Yakima and Kennewick, Washington. Today, the company headquarters are located in Kennewick, Washington and helps supports all branch functions and growth. Today, Senske has developed quality and competent staff in an array of service areas who can offer residential and commercial services including: lawn care, tree care, weed control, grounds maintenance, pest control, irrigation services, Christmas Decor holiday Lighting, and snow and ice removal. Today, the company continues to strive for superior customer service in which the company was founded upon. Senske operates in the cities and surrounding areas of: Spokane, Yakima, Walla Walla and Kennewick, Washington; Coeur d'Alene and Boise, Idaho; and Salt Lake City and Ogden, Utah, and Las Vegas, Nevada. Additional DBA - Senske Land and Tree Care Senske Pest Control.
"Terrible. The guy was using a broken apparatus and the liquid mix for the injections was pouring onto the ground. I suspect that, because of loosing so much of it on the grounds, the trees did not receive the dosage required. Previous 2 years, not a problem and the bugs were gone. These trees are shade to my deck. Can't get anywhere near them now and Senske will not respond to re-treating the trees. I have emailed and I have called, countless time. No response to emails and calls are always the same story - "It will take 24-48 hours to get a response". Well, it's been lots of those! NOT ANYMORE! TWO and 1/2 YEARS and they're are a train wreck. Faulty equipment, failed services (that you have PAID FOR on your AUTOPAYMENT PLAN) and you can't get a response, at all, over WEEKS. My message to Senske: Maybe y'all should stop the endless office parties and start taking care of your customers. Try answering the phones or the email system that you recommend "Many of our Clients prefer to send an email for a for a Quick Answer On The Go". You never respond to anything, actually. SENSKE SERVICES has no idea what one office is, or any area based service, is doing -- 'SENSKE MOTTO: Let's give ZERO customer response and outlook while we F-around and party while good customers become our former customers.' Looks like a good place to start a new landscape company. Somebody will."
Lynn N on August 2022
Senske Servcies began as a small lawn care and pest control company in 1947 by Bill Senske in Spokane, Washington. During the 1960's, chemical weed and pest control began to grow, expanding the family business. In the 1080's, after four successful decades, Bill Senske handed over the reins to his youngest son, Chris. Chris expanded the family business into new territories including Yakima and Kennewick, Washington. Today, the company headquarters are located in Kennewick, Washington and helps supports all branch functions and growth. Today, Senske has developed quality and competent staff in an array of service areas who can offer residential and commercial services including: lawn care, tree care, weed control, grounds maintenance, pest control, irrigation services, Christmas Decor holiday Lighting, and snow and ice removal. Today, the company continues to strive for superior customer service in which the company was founded upon. Senske operates in the cities and surrounding areas of: Spokane, Yakima, Walla Walla and Kennewick, Washington; Coeur d'Alene and Boise, Idaho; and Salt Lake City and Ogden, Utah, and Las Vegas, Nevada. Additional DBA - Senske Land and Tree Care Senske Pest Control.
"Terrible. The guy was using a broken apparatus and the liquid mix for the injections was pouring onto the ground. I suspect that, because of loosing so much of it on the grounds, the trees did not receive the dosage required. Previous 2 years, not a problem and the bugs were gone. These trees are shade to my deck. Can't get anywhere near them now and Senske will not respond to re-treating the trees. I have emailed and I have called, countless time. No response to emails and calls are always the same story - "It will take 24-48 hours to get a response". Well, it's been lots of those! NOT ANYMORE! TWO and 1/2 YEARS and they're are a train wreck. Faulty equipment, failed services (that you have PAID FOR on your AUTOPAYMENT PLAN) and you can't get a response, at all, over WEEKS. My message to Senske: Maybe y'all should stop the endless office parties and start taking care of your customers. Try answering the phones or the email system that you recommend "Many of our Clients prefer to send an email for a for a Quick Answer On The Go". You never respond to anything, actually. SENSKE SERVICES has no idea what one office is, or any area based service, is doing -- 'SENSKE MOTTO: Let's give ZERO customer response and outlook while we F-around and party while good customers become our former customers.' Looks like a good place to start a new landscape company. Somebody will."
Lynn N on August 2022
Auto Rain Contracting LLC
Auto Rain Contracting LLC
Auto Rain Contracting LLC is a locally owned company. We offer lawn sprinkler installation and repair in eastern Washington & northern Idaho. We also offer lawn care & landscape maintenance in the Spokane area. In addition, we have technicians in Washington & Idaho certified for backflow assembly testing & repair.
Auto Rain Contracting LLC is a locally owned company. We offer lawn sprinkler installation and repair in eastern Washington & northern Idaho. We also offer lawn care & landscape maintenance in the Spokane area. In addition, we have technicians in Washington & Idaho certified for backflow assembly testing & repair.

C & C Yard Care
C & C Yard Care
Serving Spokane Since 1985. Locally owned and operated with employees that care about getting the job done right. Your satisfaction is 100% guaranteed. The job isn't done until you are happy. Call or click today. TREE SERVICE. SPRINKLER INSTALLATION AND MAINTENANCE. LAWN MOWING AND FERTILIZING. LANDSCAPING. SNOW REMOVAL.
"I had three services done by C&C before I canceled everything. Numerous times, during my quote and all phone calls, I asked them about only coming to do services on Monday or Tuesday as I’m home both of those days. Never did they respect my request for either of those days. They never once provided a courtesy call to let me know when they were on their way to provide any service. I did receive a call a day or two prior to them showing up but they did not respect whether I said yes or no. First they came to apply weed killer and fertilizer to the lawn. They left the weed killer particles all over my patio and walkways. I have a dog so I feel like that was super unsafe for them to just leave piles of it everywhere. Then they came to do some stump grinding. They called the day before to say that they would be coming tomorrow… I called and left a message saying that I wouldnt to be home so I don’t want them to come. They came anyway. No courtesy call prior to arriving ever. They had no care about my sprinklers, which were marked, and they covered it with rocks and ruined the pvc safety around the sprinkler. The final thing was pruning and shaping of my trees and shrubs. This was the worst! During the original quote it was mentioned that it would take about 6 to 8 weeks to perform. At eight weeks I had to reach out to find out if it was ever going to happen… They butchered one of my privacy trees in my front yard. Cut one side up 4 to 5 feet and left the other side touching the shrubs. The shrubs have no shape and look awful. The hedges in the back are uneven. They barely did any pruning of the trees whatsoever. There are still dead branches everywhere. The trees are also resting on the hedges. I did call and state that I was very unhappy for each service. The third and final call is when I asked for all of my future services to be canceled as I am unhappy with the service they have provided. The manager called back and said that they’ll cancel everything pending due to me being unhappy. No attempt was ever made to correct the issues. Never once did they send someone out to even check my sprinklers that they ruined on the stump grinding. When I called and said I was unhappy about the tree pruning and shrubs not once did they offer to come fix anything."
Robin S on September 2020
Serving Spokane Since 1985. Locally owned and operated with employees that care about getting the job done right. Your satisfaction is 100% guaranteed. The job isn't done until you are happy. Call or click today. TREE SERVICE. SPRINKLER INSTALLATION AND MAINTENANCE. LAWN MOWING AND FERTILIZING. LANDSCAPING. SNOW REMOVAL.
"I had three services done by C&C before I canceled everything. Numerous times, during my quote and all phone calls, I asked them about only coming to do services on Monday or Tuesday as I’m home both of those days. Never did they respect my request for either of those days. They never once provided a courtesy call to let me know when they were on their way to provide any service. I did receive a call a day or two prior to them showing up but they did not respect whether I said yes or no. First they came to apply weed killer and fertilizer to the lawn. They left the weed killer particles all over my patio and walkways. I have a dog so I feel like that was super unsafe for them to just leave piles of it everywhere. Then they came to do some stump grinding. They called the day before to say that they would be coming tomorrow… I called and left a message saying that I wouldnt to be home so I don’t want them to come. They came anyway. No courtesy call prior to arriving ever. They had no care about my sprinklers, which were marked, and they covered it with rocks and ruined the pvc safety around the sprinkler. The final thing was pruning and shaping of my trees and shrubs. This was the worst! During the original quote it was mentioned that it would take about 6 to 8 weeks to perform. At eight weeks I had to reach out to find out if it was ever going to happen… They butchered one of my privacy trees in my front yard. Cut one side up 4 to 5 feet and left the other side touching the shrubs. The shrubs have no shape and look awful. The hedges in the back are uneven. They barely did any pruning of the trees whatsoever. There are still dead branches everywhere. The trees are also resting on the hedges. I did call and state that I was very unhappy for each service. The third and final call is when I asked for all of my future services to be canceled as I am unhappy with the service they have provided. The manager called back and said that they’ll cancel everything pending due to me being unhappy. No attempt was ever made to correct the issues. Never once did they send someone out to even check my sprinklers that they ruined on the stump grinding. When I called and said I was unhappy about the tree pruning and shrubs not once did they offer to come fix anything."
Robin S on September 2020

Spokane Pro Care
Spokane Pro Care
Spokane Pro Care provides landscape maintenance, mowing, sprinkler, weed and pest control to take care of you lawn in Spokane, WA.
Spokane Pro Care provides landscape maintenance, mowing, sprinkler, weed and pest control to take care of you lawn in Spokane, WA.
G and S Landscape
G and S Landscape
Full Landscape Service - Installation and Maintenance
Full Landscape Service - Installation and Maintenance
"Was told it would be about 4-5 days. It took them8 days over a four week period. Crappy Home Depot sprinkler parts, most of which were clogged with pebbles and had to have another company fix. My 3-5 gallon shrubs at $60 each were only about 12" x 12"! Part of the sod died and had to be replaced. They did a half *** leveling job and I now have a small lake in the yard! Still fighting with them about that! I spent $15k total and am so sorry that I did ! If u want pics of this crappy job, let me know!"
Kelly H on August 2018
35 employees.
"Was told it would be about 4-5 days. It took them8 days over a four week period. Crappy Home Depot sprinkler parts, most of which were clogged with pebbles and had to have another company fix. My 3-5 gallon shrubs at $60 each were only about 12" x 12"! Part of the sod died and had to be replaced. They did a half *** leveling job and I now have a small lake in the yard! Still fighting with them about that! I spent $15k total and am so sorry that I did ! If u want pics of this crappy job, let me know!"
Kelly H on August 2018

Alderwood Landscaping
Alderwood Landscaping
We specialize in building 5 star backyard resorts! For more than 25 years, Alderwood has shown an uncompromising commitment to delivering the most beautiful landscapes to our clients. Our designers and construction crews have enhanced the beauty and the functionality of outdoor environments throughout the Inland Northwest. Contact our design offices in Bellevue and Spokane. We offer a free in-home design consultation with a licensed architect. To view a full gallery and scope of our projects, please visit our website: https://alderwoodlandscaping.com.
"Have used Alderwood twice on large backyard living space projects and recommend them highly. First, they take the time to work with you on a design (they have designers on staff) that incorporates all elements, provide you with material samples, pictures, etc. When we struggled to make decisions they took us “shopping” to see samples (light fixtures, paver types, etc) and helped us visualize. We’ve been really impressed by this process. The construction crews are highly professional. They are thoughtful and careful with neighbors when dealing with moving equipment in and out, noise, and those kinds of things. They are great communicators and set really good expectations about project length and other details. When we asked for tweaks or changes midstream there was never any grousing or grumbling - they were very focused on making sure we were 100% happy. The guys are our crew were Colin, Max and Michael, and Patrick was the Construction Manager. In both cases, the finished projects were even more stunning than we expected. Top notch."
Dave w on May 2023
We specialize in building 5 star backyard resorts! For more than 25 years, Alderwood has shown an uncompromising commitment to delivering the most beautiful landscapes to our clients. Our designers and construction crews have enhanced the beauty and the functionality of outdoor environments throughout the Inland Northwest. Contact our design offices in Bellevue and Spokane. We offer a free in-home design consultation with a licensed architect. To view a full gallery and scope of our projects, please visit our website: https://alderwoodlandscaping.com.
"Have used Alderwood twice on large backyard living space projects and recommend them highly. First, they take the time to work with you on a design (they have designers on staff) that incorporates all elements, provide you with material samples, pictures, etc. When we struggled to make decisions they took us “shopping” to see samples (light fixtures, paver types, etc) and helped us visualize. We’ve been really impressed by this process. The construction crews are highly professional. They are thoughtful and careful with neighbors when dealing with moving equipment in and out, noise, and those kinds of things. They are great communicators and set really good expectations about project length and other details. When we asked for tweaks or changes midstream there was never any grousing or grumbling - they were very focused on making sure we were 100% happy. The guys are our crew were Colin, Max and Michael, and Patrick was the Construction Manager. In both cases, the finished projects were even more stunning than we expected. Top notch."
Dave w on May 2023
FAQs for lawn fertilization and treatment projects in Valley, WA
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 Valley, WA homeowners’ guide to lawn fertilization and treatments
From average costs to expert advice, get all the answers you need to get your job done.
•Discover the cost to fertilize your lawn, including average prices, key factors, and tips to help homeowners budget for a lush, healthy yard.
•Get transparent power seeding cost info to learn what impacts pricing, how to save, and whether to DIY or hire a pro for your lawn’s best results.
•Discover average hydroseeding cost, key price factors, and ways to save. Get transparent estimates for your lawn project and make informed decisions for your home.

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