Top-rated lawn fertilization and treatment specialists.

Get matched with top lawn fertilization and treatment specialists in Langley, WA

Enter your zip and get matched with up to 5 pros

Need a pro for your lawn fertilization and treatment project in Langley, WA?

Select your specific project to find the pro for you.

TRUSTED BY LANGLEY, WA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon148
    Verified lawn fertilization and treatments reviews

Find Lawn fertilization and treatment specialists in Langley

Avatar for Senske Services of Seattle

Senske Services of Seattle

4.62(
17
)
Approved Pro

Senske Services of Seattle

4.62(
17
)
Approved Pro
Customers say: True professional
1948 years of experience
Free onsite estimate

Senske Services provides trusted lawn care, tree service and pest control to Seattle and its surrounding communities, including Kirkland, Kent, Everett, Bainbridge Island and beyond. Our expert team of lawn technicians and agronomists specialize in providing the best year-round lawn care and lawn treatment services. Our services are tailored specifically to your property to keep lawns healthy, lush and green. Senske improves the environment where our community lives, works, and plays through our services. As a company, Senske is built on: Legacy - We have been a family company since 1947. Integrity - The Senske Promise is solid. We offer the highest standards of service and satisfaction. Loyalty - Senske pledges our loyalty to our customers, and in return, they are loyal to us. Community - Senske serves our community through our hard work and charitable activities.

"The worst weed control I have ever seen. They bought custom weed control and ruined all of their goodwill."

Jim G on March 2025

Senske Services provides trusted lawn care, tree service and pest control to Seattle and its surrounding communities, including Kirkland, Kent, Everett, Bainbridge Island and beyond. Our expert team of lawn technicians and agronomists specialize in providing the best year-round lawn care and lawn treatment services. Our services are tailored specifically to your property to keep lawns healthy, lush and green. Senske improves the environment where our community lives, works, and plays through our services. As a company, Senske is built on: Legacy - We have been a family company since 1947. Integrity - The Senske Promise is solid. We offer the highest standards of service and satisfaction. Loyalty - Senske pledges our loyalty to our customers, and in return, they are loyal to us. Community - Senske serves our community through our hard work and charitable activities.

"The worst weed control I have ever seen. They bought custom weed control and ruined all of their goodwill."

Jim G on March 2025


Avatar for Pioneer Tree Service & Landscaping, Inc.

Pioneer Tree Service & Landscaping, Inc.

4.69(
18
)
Approved Pro

Pioneer Tree Service & Landscaping, Inc.

4.69(
18
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1986 years of experience

Welcome to Pioneer Tree Service & Landscaping, Inc., where there are numerous ways we can service your outdoor needs. With well over 20 services offered, we can handle your outdoor issues. We pride ourselves on fair prices and professional customer service. It is our goal to not only provide you with excellent service, but with a wealth of information regarding plant, tree and yard health. If you have any questions or for fair pricing please give us a call.

"Excellent work!"

Amber D on July 2024

Welcome to Pioneer Tree Service & Landscaping, Inc., where there are numerous ways we can service your outdoor needs. With well over 20 services offered, we can handle your outdoor issues. We pride ourselves on fair prices and professional customer service. It is our goal to not only provide you with excellent service, but with a wealth of information regarding plant, tree and yard health. If you have any questions or for fair pricing please give us a call.

"Excellent work!"

Amber D on July 2024


TnT Arbology

New on AngiNew on Angi
Approved Pro

TnT Arbology

New on AngiNew on Angi
Approved Pro
2014 years of experience
Free onsite estimate

At TnT Arbology, we are committed to excellence in every aspect of our business. We enjoy our work and are not satisfied until you are happy. As a small local company owned and operated by a veteran and a woman, we have a unique understanding of life on Whidbey. We are constantly expanding our knowledge and honing our skills. We only hire people from our community that are as meticulous as we are and that are willing to put in an honest days work. All of our staff are fully vetted and screened. We have 25+ years of combined experience in Design, Quality Control, Landscaping, and Project Management in and around Whidbey and Fidalgo Islands. At TnT Arbology, no job too big, or too small for our team. Call today and let us put our experience to work for you!

At TnT Arbology, we are committed to excellence in every aspect of our business. We enjoy our work and are not satisfied until you are happy. As a small local company owned and operated by a veteran and a woman, we have a unique understanding of life on Whidbey. We are constantly expanding our knowledge and honing our skills. We only hire people from our community that are as meticulous as we are and that are willing to put in an honest days work. All of our staff are fully vetted and screened. We have 25+ years of combined experience in Design, Quality Control, Landscaping, and Project Management in and around Whidbey and Fidalgo Islands. At TnT Arbology, no job too big, or too small for our team. Call today and let us put our experience to work for you!


Garner's Northwest Landscaping

4.90(
49
)

Garner's Northwest Landscaping

4.90(
49
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Garner's Northwest is an award winning landscape installation and maintenance company that has been in business since 1991. We have licensed pesticide applicators, certified paver installers and certified retaining wall installers on staff.

"I've been a customer of this company for the last five years. The first time I contacted Jeff Garner, he wrote a letter in support of my landscape plans that I was able to send to my homeowner's association to get their approval. I was impressed that he was willing to help me out even though initially his company didn't do work for me. Since then, he has taken care of a variety of projects involving all aspects of my landscape, and I am alway happy with the results. I trust his judgment and the work his folks do, and the fact that he always comes through with solutions that make my large landscape easier to take care of. My landscape received the Mill Creek Sustainable Landscape designation, and I've received the Beautiful Garden award from my association, so I think we are on the right track."

Barbara M on January 2018

Garner's Northwest is an award winning landscape installation and maintenance company that has been in business since 1991. We have licensed pesticide applicators, certified paver installers and certified retaining wall installers on staff.

"I've been a customer of this company for the last five years. The first time I contacted Jeff Garner, he wrote a letter in support of my landscape plans that I was able to send to my homeowner's association to get their approval. I was impressed that he was willing to help me out even though initially his company didn't do work for me. Since then, he has taken care of a variety of projects involving all aspects of my landscape, and I am alway happy with the results. I trust his judgment and the work his folks do, and the fact that he always comes through with solutions that make my large landscape easier to take care of. My landscape received the Mill Creek Sustainable Landscape designation, and I've received the Beautiful Garden award from my association, so I think we are on the right track."

Barbara M on January 2018


Avatar for Gallegos Landscaping

Gallegos Landscaping

4.90(
89
)

Gallegos Landscaping

4.90(
89
)
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Gallegos Landscaping has over twenty years in landscaping, lawn and yard work experience. We are very detail-oriented and our primary focus is on customer satisfaction. Our prices our reasonable and affordable. Please contact us for a free estimate today.

"Vary good work. Just didn’t like the price."

Andrew N on August 2020

Gallegos Landscaping has over twenty years in landscaping, lawn and yard work experience. We are very detail-oriented and our primary focus is on customer satisfaction. Our prices our reasonable and affordable. Please contact us for a free estimate today.

"Vary good work. Just didn’t like the price."

Andrew N on August 2020


Avatar for The Davey Tree Expert Company

The Davey Tree Expert Company

4.74(
54
)

The Davey Tree Expert Company

4.74(
54
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Call today for a free consultation. Our team of certified arborists provides expert tree services, trimming, removals, insect and disease prevention and more. All Davey Tree specialists are licensed, bonded and insured and committed to personalized client service and accomplishing your property goals. Contact us today to get started!

Call today for a free consultation. Our team of certified arborists provides expert tree services, trimming, removals, insect and disease prevention and more. All Davey Tree specialists are licensed, bonded and insured and committed to personalized client service and accomplishing your property goals. Contact us today to get started!



Avatar for GRASS MASTER HYDROSEEDING

GRASS MASTER HYDROSEEDING

5.00(
9
)

GRASS MASTER HYDROSEEDING

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Specialties We have multiple Hydroseeding trucks that are capable of top-mount spraying (large areas), as well motorized hose-reel mounted on the back of our trucks. Our trucks allow us to do jobs that most cannot. With that, we hold ourselves to a higher standard of quality work and communication. Our job is to spray a seed/mulch/water mixture and can guarantee growth. Depending on the season customers can have grass growth within 2-3 weeks, but also requires you keep the mulch moist like a wet sponge. Meet the Business Owner Business owner information Nicole T. Business Owner My dad started this business, and both me and my sister had started working here at a very young age. I run the material purchasing, job scheduling, and invoicing. Our clients are the best. We have worked with a bunch of different businesses over the years so much that some have been invited to our holiday parties! We can do any custom seed/mulch mixture that depends on your scenario, but most likely you need regular lawn/grass mix. Our most common jobs: 1. Landscapers hire us to spray grass seed on their client jobs 2. Homeowners hire us to spray grass seed at their houses 3. Big company/property-developers hire us for erosion control

Specialties We have multiple Hydroseeding trucks that are capable of top-mount spraying (large areas), as well motorized hose-reel mounted on the back of our trucks. Our trucks allow us to do jobs that most cannot. With that, we hold ourselves to a higher standard of quality work and communication. Our job is to spray a seed/mulch/water mixture and can guarantee growth. Depending on the season customers can have grass growth within 2-3 weeks, but also requires you keep the mulch moist like a wet sponge. Meet the Business Owner Business owner information Nicole T. Business Owner My dad started this business, and both me and my sister had started working here at a very young age. I run the material purchasing, job scheduling, and invoicing. Our clients are the best. We have worked with a bunch of different businesses over the years so much that some have been invited to our holiday parties! We can do any custom seed/mulch mixture that depends on your scenario, but most likely you need regular lawn/grass mix. Our most common jobs: 1. Landscapers hire us to spray grass seed on their client jobs 2. Homeowners hire us to spray grass seed at their houses 3. Big company/property-developers hire us for erosion control



Avatar for TruGreen - Redmond

TruGreen - Redmond

4.17(
82
)

TruGreen - Redmond

4.17(
82
)
Customers say: Super punctual
1980 years of experience

TruGreen is the nation's largest provider of lawn and landscape services. We make it easy for you by delivering customized care solutions that are effective, innovative and responsible. TruGreen® provides a full suite of tailored lawn and landscape services. From fertilization and aeration to tree & shrub services and much more, TruGreen delivers superior results backed by our Healthy Lawn Guarantee.®1 We also offer effective solutions to help control and prevent lawn damaging insects, like chinch bugs and grubs. Our passion for lawns sets us apart, and we’ll help you achieve a lawn you love. Contact us today to start your tailored lawn plan.

"Two big issues... last Summer they burned my lawn with fertilizer. Granted, they tried to fix it but the lawn didn't recover until this Spring. This year, they showed up but didn't apply moss control or lime to my full lawn. They only partially applied it in a couple of small strips. A few weeks after 'applying' moss control, they left me a note saying I need moss control."

David V on May 2022

TruGreen is the nation's largest provider of lawn and landscape services. We make it easy for you by delivering customized care solutions that are effective, innovative and responsible. TruGreen® provides a full suite of tailored lawn and landscape services. From fertilization and aeration to tree & shrub services and much more, TruGreen delivers superior results backed by our Healthy Lawn Guarantee.®1 We also offer effective solutions to help control and prevent lawn damaging insects, like chinch bugs and grubs. Our passion for lawns sets us apart, and we’ll help you achieve a lawn you love. Contact us today to start your tailored lawn plan.

"Two big issues... last Summer they burned my lawn with fertilizer. Granted, they tried to fix it but the lawn didn't recover until this Spring. This year, they showed up but didn't apply moss control or lime to my full lawn. They only partially applied it in a couple of small strips. A few weeks after 'applying' moss control, they left me a note saying I need moss control."

David V on May 2022

...
Showing 1-10 of 69
Lawn Fertilization and Treatment questions, answered by experts

You should apply sulfur to your lawn in the spring or fall when it is below 80 degrees Fahrenheit. Aim for a day with little to no wind so you can apply it with precision. You can apply sulfur to an established lawn or mix it into the top 6 inches of soil on an unplanted area.

The best time to fight crabgrass with pre-emergent herbicide is when forsythias tend to bloom. In the mid-Atlantic region, this is usually between April and May. Even if you're late to apply the herbicide, it’s effective as long as the crabgrass plant has fewer than five leaves.

You should water your lawn two or three days before putting down fertilizer to ensure it can properly absorb it. It's good to apply fertilizer if the ground is moist, but you want to avoid overwatering or flooding the area because it can prevent the grass from absorbing the nutrients. Consider weather conditions when scheduling your fertilizer treatment and read the instructions to see how long you should wait to water after application.

Yes, but the best approach is to apply fertilizer well before you actually sprinkle the seeds. Apply fertilizer with an NPK ratio somewhere around 10-10-20, or 10-10-10, depending on soil test results and the type of grass you're planting, about six to eight weeks before planting grass seed. This mix added to loosened soil will give the grass seed its best chance of getting off to a solid start. 

The cost of yard work depends on the type of work you need done. The average cost of lawn care is $300, but you could pay as little as $100 or up to $500.

The Langley, 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.