Verified record
Typical your area range for this kind of work, from regional averages — not a quote from Svendsen & Keller. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$50 – $70
Typical landscaping service around $60
Svendsen & Keller describes itself as a landscape design firm creating gardens integrated with homes and properties of all styles and sizes, and says it has been in business 30 years. A local paper has described Keller and his wife, Ilsa Svendsen, as earning their living landscaping, with clients around Fairfield County and nearby New York state. A 2024 customer said Ilsa and Joe executed a plan within their budget, with native low-maintenance trees and plantings and a woodland path through a shaded garden. A 2023 customer said the company completely redesigned multiple garden beds around their home and pool with native, colorful plantings. A 2023 reviewer who asked for a native, low-maintenance planting for pollinators and birds wrote that Monarch butterflies had stopped to feed. A 2022 customer said Ilsa and Joe replaced a retaining wall, including steps at both ends, reseeded an area of their roadway and restored a gravel driveway. A 2022 customer who had the front yard of a home in Westchester landscaped said the project came in under budget. A 2025 customer said they spent over $10K and essentially paid for a backyard of all weeds and no grass. That 2025 customer wrote that after emailing the company, they were told it could charge for more pesticide treatments. Connecticut lists its home improvement contractor registration, HIC.0701130, as active, held by Svendsen & Keller LLC.
“Ballard Garden following 2018-2020 restoration. Design assistance, Ilsa Svendsen, Svendsen & Keller.”
“Keller and his wife, Ilsa Svendsen, earn their living landscaping — their business, Svendsen & Keller, has clients around Fairfield County and nearby New York state.”
“Keller and his wife, Ilsa Svendsen, earn their living landscaping — their business, Svendsen & Keller, has clients around Fairfield County and nearby New York state.”
I was initially pretty happy with how my backyard came out last year, but spending over $10K with this company has become my biggest regret. Not only did I get severely overcharged, but I essentially paid for a backyard of all weeds and no grass. I can’t look at my backyard without getting upset with all the money I threw down the drain. I’ve emailed them and told them my backyard is 75% weeds, and they told me they can charge me for more pesticide treatments. For all the money I paid for a grass, I should not have to be spending more money! I am sorry to have to write this review, but no one should look at their backyard and cry and think about all the money they lost.
We have been so fortunate to engage Ilsa and Joe for their knowledge and expertise. I actually can’t remember when we first started this journey, but they have been endlessly patient with our musings, and ultimately executed a plan that is realistic, practical and within our budget. Over the years we have witnessed the transformation of our property to a beautiful palette populated with native low maintenance trees and plantings that we enjoy throughout the seasons. And complete with a delightful woodland path that meanders through a peaceful shaded garden. Our garden is filled with honey bees, butterflies and birds, and even a family of rabbits!
Ilsa and Joe worked with us to bring to life our front yard. They took our very basic description of what we were looking for and somehow completely nailed our inarticulate vision. How, I have no idea! - but it is brilliant. They have worked with us to phase the different sections of our yard (front and back) bringing quietly efficient, spot on project management, fantastic advice on planting and maintenance and a flexibility that we have enormously appreciated. We are thrilled with the results so far (admired by many and appreciated daily by us!) and can’t wait to begin phase 2 next year :)
I couldn't be happier with the work done by Svenden & Keller. They completely redesigned multiple garden beds surrounding my home and pool. I asked for native, colorful plantings and their design exceeded my expectations. I know the importance of native plantings, but I didn't realize how much I would enjoy the plethora of butterflies that visit my garden beds. The colors flow from one color scheme to another in a subtle way, and the variations make the garden more aesthetically pleasing. Installation was seamless and maintenance is great too.
Svendsen & Keller are fantastic. They listened to what my vision and with their expertise they made it come to life. They created a gorgeous garden that fit the landscape to perfection. The gardens are constantly changing their pallet! The company was professional and always quickly responded to my questions and needs. The photos do not do the garden justice. I look forward to working on more gardens with them.
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1 change recorded — last scanned Oct 13, 2026.
Ten years caring for one property4.6
Native plant garden plan3.7