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Weinmayr/Jay Assoc. is a landscape architecture firm that describes itself as Watertown-based, and in a 2025 Google review a customer said David Jay listened to their wishes for garden rooms, lots of color, a non-grass, perennial-based landscape, and hardscaping in keeping with their Victorian house. That 2025 reviewer wrote that the result was still a joy years later and that David's selections of plantings were 95%+ successful despite many challenges on the site. The firm says Michael Weinmayr established it in 1969 and that David Jay assumed full control in 2012. The BBB gives Weinmayr-Jay Associates an A+ rating; the business is not BBB-accredited. A 2025 Google reviewer who said they had been collaborating with David for many years wrote that he understood the goals and ideas and provided solutions to meet the needs of the project.
David & I have been collaborating for many years, and he is a great designer & easy to work with. David understands the goals & ideas and provides solutions to meet the needs for the project.
David Jay listened to my wishes for garden rooms, lots of color, a non-grass, perennial-based landscape, and hardscaping in keeping with my Victorian house, and boy did he deliver! The result is still a joy years later, and David’s selections of plantings were 95%+ successful despite many challenges on my site. Highly recommended!
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2 changes recorded — last scanned Sep 8, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Weinmayr/Jay Assoc. Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$50 – $70
Typical landscaping service around $60
