Serving Denver homeowners with patios, lighting, irrigation, and more for lasting outdoor beauty and function.
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Guaranteed Excellence Landscaping has been providing professional landscaping services in Denver for over 25 years. Rooted locally, we tailor each project to Colorado’s unique climate, ensuring plants and hardscapes thrive year-round. Our team focuses on creating beautiful, durable, and low-maintenance outdoor spaces that fit your style and budget. We believe quality materials and thoughtful design make all the difference in lasting landscapes.
Work With Us →Fully licensed and insured for your peace of mind.
We show up when we say we will, every time.
52+ five-star reviews on Google.
Low-impact products that protect your family, pets, and lawn.

Custom plans that blend aesthetics and function suited for Denver’s climate and your needs.

Durable and stylish patios designed for year-round outdoor enjoyment and easy maintenance.

Structures that manage slopes and add visual interest using materials suited for Denver’s environment.







We walk the property with you, listen to what you want, and outline the best approach — completely free.
You receive a detailed, itemized quote within 24 hours. No hidden fees, no surprises.
Our licensed crew arrives on schedule and transforms your yard with precision and care.
We walk you through the finished work and set up maintenance so your yard stays beautiful year-round.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
Guaranteed Excellence transformed our front yard from dated and disjointed to a beautiful modern show piece. Rafael and his team were great from start to finish. The communication was excellent in terms of expectations and pricing. The installation itself took a little over a week and the attention to detail was amazing to watch. Each person took pride in their work and ensured throughout the process that we were getting exactly what we wanted. We couldn't be happier with the final result which exceeded our expectations. We would highly recommend Guaranteed Excellence!
**Updated - added 2 photos from the end of the summer (8/20). Worked with Angie (designer), Alex (landscaping) to design our new-build backyard at Lyric in Lone Tree. Angie made excellent reccommendations on plants, trees and design options that fit what I wanted and helped curate the docs I needed to submit for HOA approval. The installation team is professional, detail-oriented and went above and beyond on a couple asks that came up during the install process. GE was competitively priced and I would use them again in the future. Lived up to the name!
I can’t even begin to share how pleased we are after using Guaranteed excellence to give us the back yard of our dreams. We recently purchased a home that had a backyard that consisted of dirt, weeds, and garbage. My husband and I decided we needed to have a professional handle the job. Angie was our first point of contact that assisted us with the design and gave us a very fair quote (8000$ less than their competitor for the exact same thing). We had all of the weeds and rubbish removed, added irrigation, rock edging, trees, added a sitting area, drip lines for raised beds, paver walk ways, and sod. (I will add my dad owned a sod farm/landscaping company for 30 years so I am well aware GE went above and beyond in the process and did everything to the book and the best way possible for the best results). GE completed the project in just 3 days. Alex was the lead guy on the job and he was wonderful to work with, checked in a lot to ensure we were happy with how it was going. The crew showed up early every single day and worked SOOOOO incredibly hard, it would have taken all summer for my husband and I to do the job ourselves and probably wouldn’t have turned out half as good. We couldn’t be more happy/giddy and will be looking to hire them again in the future to tackle the front of our house. Money well spent and we can’t wait to enjoy our new space!! The before and afters speak for themselves. Don’t think twice about hiring them.
Rafa and his team did a great job with our backyard. The before and after photos are night and day. The guys worked hard to get the job done quickly and the results are beautiful. Would recommend!
We used Guarantee Excellence landscape about 10 years ago for our backyard and they did excellent job back then. There were many times I wish I could recall their contact information for our landscape needs because other landscapers we used didn’t measure up to their performance. However, out of the blue we received one of their mailers and we hired them to regrade our front lawn, install a retaining wall, replace and reseed the lawn with lower water required seeds and install water efficient sprinkler heads. They did a great job at a very reasonable price and will use them again in the future. Update- low growth seeds did come up very nicely in the front lawn. We ended up hiring them again for more work in the backyard. They did excellent work filling the pond/foundation and converted into a paver patio and another patio across from it. We also had them build us a sunset viewing deck with 30 steps leading up to it. We are so very happy with their work and would strongly recommend them for any landscaping projects.
We offer a full range of landscaping services including patios, retaining walls, landscape design, turf space installation, tree planting and care, landscape lighting, and irrigation systems. Contact us for a free estimate tailored to your project.
You can request a free quote by calling us at (303) 922-7199, visiting our website, or filling out the contact form. We proudly serve Denver and surrounding communities and will schedule a consult at your convenience.
Our customers rate us 4.8 stars based on 52 Google reviews. They frequently praise our attention to detail, professionalism, and how we transformed their yards into beautiful, functional outdoor spaces.
We serve Denver and surrounding communities, bringing expert landscaping solutions to local neighborhoods throughout the metro area.
Yes, we offer free estimates and consultations. Simply call or contact us online to schedule a time that works best for you.
Get a free landscaping quote for your Denver property — no pressure, no hassle.
Have a project in mind? Fill out the form and we'll get back to you with a custom quote — usually same day.
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