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Top-Rated Lawn care fertilize or treatment pros in Ontario - Updated Nov 2026

Avatar for Green Life Landscape Inc.
Green Life Landscape Inc.
5.0(
10
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"The Green Life crew did an amazing job with my landscape. We had hedges installed and they even added drip lines. I love their attention to detail and plant recommendations because I’m a little picky. They also keep my lawn looking green and healthy."
Vegetation removal & application of herbicide.
Vegetation removal & application of herbicide.
Vegetation removal & application of herbicide.
Additional Photos
Additional Photos

+1

Response time2 days
Response rate100%
Recommended by100%of homeowners
Avatar for NaturaLawn of America - Rancho Cucamonga
NaturaLawn of America - Rancho Cucamonga
4.6(
46
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"The technician always comes to the door before starting work to alert us that he is in the yard. The work is accomplished quickly and quietly. The technician leaves an invoice in a plastic bag on my front door knob. It is convenient to pay the invoice online. When my lawn gets enough water, which is my responsibility, it looks great. However, if this drought continues much longer, I may have to resort to xeriscaping.
"
Upland Customer
LaVerne Customer
Rancho Cucamonga Customer
Recommended by93%of homeowners
Avatar for Bottoms Up Gardens
Bottoms Up Gardens
4.5(
89
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"She provided input that the tree needed more miosture and she returned to administer fertilizer providing guidance as to the approriate fertilizer to use. She was friendly, and expert. One week later the tree is showing signs of new growth with less leaf loss.
"
WATER FALL
Recommended by98%of homeowners
Avatar for Richard's Sprinkler Company
Richard's Sprinkler Company
4.6(
329
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

In business since 1986

Credit card accepted

"Our new home is at the end of a cup-de-sac so therefore we have a very large pie-shaped yard with lots of sprinklers.  We had some areas of the lawn that were absolutely muddy and other areas where the grass was dead.  Richard came in and did a complete overhaul fixing broken lines, adding sprinkler heads and replacing all the sprinkler heads to achieve the proper application of water to the appropriate areas.  He added drip lines in planters, lines to potted plants, diverted water away from the house and also some fences that were being damaged by water.  He also raised three drains in the lawn that had sunk so low they were ineffective.  He went through every planter, including the one behind the pool and fixed everything. The drainage lines were also flushed out and are working beautifully.  He was very knowledgeable and efficient about what was needed to make the system work again.  We were, quite honestly, worried about having to start from scratch and replace everything but Richard told us that our system was fundamentally sound but had been neglected, had the wrong sprinkler heads everywhere and also needed a few more added to be optimal.  He explained every area of repair and why he was doing that particular repair.  They were on time, efficient and cleaned everything up after they were done.  I am so happy with their work and very relieved to not have to purchase a new system.  Definitely will call for all my sprinkler needs.
"
Recommended by89%of homeowners
Avatar for Jj’s perfect cute lawn service
Jj’s perfect cute lawn service
4.9(
9
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"We reached out for a quote for sprinkler system and possible lawn service, in which he (Juan) responded immediately. Came out on same day and we were satisfied with quote. He installed sprinkler system, in avery organized matter. His employees very professional and left everything very clean. We were satisfied with his work. We hired him for a complete clean up of front and back lawns. We are extremely satisfied with his work ethics, dependability, respectful. We ended up hiring him to be our permanent gardener with full service. We highly recommend J'J perfect Cut Lawn Juan offers various services. He also did some landscaping for us. In which we are satisfied and happy with him and his company."
Lawn Irrigation Project
Lawn Irrigation Project
Stone and Gravel Project
Additional Photos
Additional Photos

+34

Recommended by100%of homeowners
Avatar for California Arborist
California Arborist
4.4(
149
)
Lawn Care - Fertilize or Treat a Lawn

Serving Ontario, CA and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"It was a pretty good experience. He gave us a pretty good rate. His workers arrived on time and they were fast and cleaned up well after themselves. We would use them again. We are thinking of calling them again for root removal sometime soon. Our tree looked like it was dying and it was termite infested. They trimmed off all of the dead branches; they filled up all of the holes with foam and took care of all of the bugs. The guy told us that the tree would eventually need to be cut down; right now, we are using it to help cool down the house. It does not need to come down now, because it is not dying anymore."
Pool and Lighting
Golf Course Maintenance
Outdoor Kitchens
Recommended by88%of homeowners
Showing 1-10 of 43

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