Verified record
MainStay Landscape describes itself as an Osterville-based landscape design-build, fine gardening, masonry and estate care company serving Cape Cod, Greater Boston and southern New England. The company says Jay MacMullan established it in 2015 after a prior 25-year career in the Green Industry. Its Massachusetts home improvement contractor registration, number 197194, is active on the state registry. A 2016 Houzz customer described a backyard job in detail: Jay designed a 480 square foot bluestone patio with a Pennsylvania stone, dry-stack retaining wall on one side that curves around a cherry tree, plus 5 LED wall lights and two up-lights for the tree. That 2016 customer said Jay was straightforward and accurate with his pricing, and that the build took 2 weeks. A 2016 customer said they hired MainStay to redesign their front gardens and window boxes and reclaim a beachfront that had eroded and been taken over by invasive plants; that customer wrote that Jay managed a complicated permit process with Town Conservation. A 2016 customer described a complete renovation and redesign of the gardens at the family's summer residences in Oyster Harbors, MA, with Jay involved in the design and management. A 2026 Google customer said MainStay handled both the design and build of their outdoor space. A 2026 customer said Jay and his team worked on 2 of their homes and that they would hire them again. On Google the company shows 4.3 stars from 12 ratings; Houzz shows 5.0 stars from 5 ratings. A 2025 Google reviewer described lackadaisical management and a project that had been drawn out for eons, with workers standing around. A 2026 Google reviewer, a visitor on a property where MainStay was that day, said crew leaders spoke disrespectfully and rudely about their own employees.
“Anthony Crusafelli/MainStay Landscape Inc.”
Jay and his team did a fantastic job on 2 of my homes. Reliable, skilled, and easy to work with. They brought our vision to life and exceeded expectations. Would absolutely hire again.
We have had the pleasure of working on numerous jobs with Jay and his crew at MainStay Landscaping. Their designs, installations and maintenance are second to none. We will continue to use and recommend MainStay to all of our clients and friends.
We had such a great experience working with MainStay. They handled both the design and build of our outdoor space, and everything came out even better than we expected. They were incredibly easy to work with and took the time to understand our vision - what I thought would be overwhelming they made feel simple and effortless. The quality of their work is exceptional, everything is thoughtfully maintained, and we’ve gotten so many compliments since they finished. The team was professional, detail-oriented, and genuinely cared about getting everything just right. I would absolutely recommend them and look forward to future projects.
As a visitor on a property where Mainstay was that day, I witnessed crew leaders speaking disrespectfully and rudely about their own employees. It was uncomfortable to hear and gave a very poor impression of the company. Prior, I was thinking about using them but after this incident, I’ve recommended all of my friends and clients steer clear. I can’t support a business that engages in that behavior and I don’t recommend them to anyone. Do better. *Update to company response: it seemed to be the gardening supervisors in June/July, I’m unable to share the property’s address as it is a client of mine
Lackadaisical management, project has been drawn out for eons. Workers standing around listlessly, don't hire if you want a job done on time
Specializes in
Also offers
Service area
3 changes recorded — last scanned Sep 30, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from MainStay Landscape Inc.. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$50 – $70
Typical landscaping service around $60
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Detailed craftsmanship5.0
Custom sheds5.0
Fence & carpentry work5.0
Wood and block retaining walls4.9
Creative backyard landscape plan3.7
