Landscaping Contractors Logo


About The Knotted Grotto

The Knotted Grotto was a temporary art installation commissioned by Project HOME that celebrated the World Meeting of Families and the September 2015 visit of Pope Francis to Philadelphia.



with Steam Chamber, Starlite Productions, Robert O'Sullivan Landscaping And Those Who Struggle. For more information and to learn more > click here



About Us

A full service commercial / residential landscape contractor beautifying Main Line, Delaware, Montgomery and Chester County properties since 1984

property maintenance
property maintenance
property maintenance

Commercial Property Maintenance 


Creating great first impressions!


Robert O'Sullivan Landscaping Contractors: The Landscape Company trusted by prestigious Delaware Valley Companies:

Delaware County Landscape Contractor
Montgomery County Landscape Contractor
Knotted Grotto



It was an honor and a highlight of my professional career to be chosen to work as part of Meg Saligman's amazing team on the "Knotted Grotto" project which celebrated  the September 2015 visit of Pope Francis to Philadelphia


Lawn Maintenance:


Lawn Care, Weekly Cutting, Weeding, Scheduled Feedings, Fertilizers, Reseeding, Aerating, Turf Install. 


Annual Maintenance Contracts Available.



Serving Delaware, Chester, Montgomery Counties and the Main Line.


Lots Cleared:


Grading, Trees / Brush Cleared, Wood Chipping and Stump Grinding Services


Custom Walkways, Driveways, Retaining Walls and Ponds Installed:


Interlocking Pavers, Flagstones, Cobblestones and more. We work with and are certified to install most commonly available brands.

Property Maintenance Services:


Residential / commercial / public / industrial. Annual Contracts.

Lawn Care and Maintenance
walkways and patios
Snow Plow and Ice Removal Services
Stump grinding and lot clearing.

Snow Plowing, Salting and Ice Removal Services:


Residential / Commercial / Public / Industrial - Contracts Available.

Commercial Property Maintenance


Robert O'Sullivan Landscaping 

• Request A Quote•



First Name:

This field is required.

Thank You For Contacting Robert O'Sullivan Landscaping!


The form has been successfully sent.

Second Name:

This field is required.

Phone Number:

This field is required.

E-Mail Address:

This field is required.

How Can We Help You?:

This field is required.

Street Address 1:


Street Address 2:




State and Zip Code


Robert O' Sullivan Landscaping Contractors


Highland Park

Delaware County

Pennsylvania 19082

Request a landscaping quote.
Request a landscaping quote.
Request a landscaping quote.
Request a landscaping quote.
Request a landscaping quote.
Request a landscaping quote.
Request a landscaping quote.

Robert O'Sullivan Landscaping Contractors - Delaware County Landscape Contractor Service Area A To Z:


BoothwynBortondale, Broomall, Cheyney, Concord, Crum Lynne, Drexel Hill, Elwyn, Folsom, Garden City, Garnet Valley, Garrett Hill, Glen Mills, Gradyville, Haverford, Haverjtown, Holmes, Lenni, Lima. Linwood, Moylan, Radnor, Riddlewood, Rosemont, Rose Tree, Secant, St. Davids, Strafford, Villanova, Wallingford, Wawa, Wayne, Woodlyn.


Robert O'Sullivan Landscaping Contractors - Montgomery County Landscape Contractor Service Area A To Z:


Abington Township, Ambler Borough, Bridgeport Borough, Bryn Athyn Borough, Cheltenham Township, Collegeville Borough, Conshohocken Borough, Douglass Township, East Greenville Borough, East Norton Township, Franconia Township, Green Lane Borough, Hatbox Borough, Hatfield Borough, Hatfield Township, Horsham Township, Jenkintown Borough, Lansdale Borough, Limerick Township, Lower Frederick Township, Lower, Gwynedd Township, Lower Merion Township, Lower Moreland Township, Lower Pottsgrove Township, Lower Providence Township, Lower Salford Township, Marlborough Township, Montgomery Township, Narberth Borough, New Hanover Township, Morristown Borough, North Wales Borough, Pennsburg Borough, Perkiomen Township, Plymouth Township, Pottstown Borough, Red Hill Borough, Rockledge Borough, Royersford Borough, Salford Township, Schwenksville Borough, Skipjack Township, Souderton Borough, Springfield Township, Telford Borough, Towamencin Township,Trappe Borough, Upper Dublin Township, Upper Frederick Township, Upper Gwynedd Township, Upper Hanover Township, Upper Merion Township, Upper Moreland Township, Upper Pottsgrove Township, Upper Providence Township, Upper Salford Township, West, Conshohocken Borough, West Norton Township, West Pottsgrove Township, Whitmarsh Township, Whitman Township,Worcester Township.


Robert O'Sullivan Landscaping Contractors - Chester County Landscape Contractor Service Area A To Z:


Atglen, East Nottingham, Londonderry, Schuylkill, West Chester, Borough,Avondale, East Pikeland, Lower Oxford, South Coatesville, West FallowfieldBirmingham, East Vincent, Malvern, South Coventry, West Goshen, CalnEast Whiteland, ModenaSpring City, West Grove, Charlestown, Easton, New Garden, Thornbury, West Marlborough, Coatesville, Elk, New London, Tredyffrin, West Nantmeal, Downingtown, Elverson, Newlin, Upper Oxford, West Nottingham.


Request a landscaping quote.

I appreciate you taking the time to visit our corner of the Internet and remember, I'm here to help make your landscape project a reality. Please contact us  or call me at 610-789-7675 for a fair and competitive landscaping quote.


Kind Regards,


Robert O'Sullivan


Walkway Installation

Hi there, I'm Robert O'Sullivan, the mind behind Robert O'Sullivan Landscaping Company and the owner of


Let me share a bit of our story.

After the Korean War, my dad,

Michael (everyone called him

Mr. Mike), laid the foundation

for O'Sullivan Landscaping



His journey was all about

unwavering hard work and

integrity. He built the business

client by client, relying on his reputation for honesty and

quality work.My dad was a incredibly hard worker, a trait only surpassed by my mother who impressively raised ten kids!


Landscaping Contractors

Landscaping Contractors, your premier landscaping expert in Pennsylvania, proudly serving Delaware County, Montgomery County, and Chester County. Our expert team offers top-notch lawn care, garden design, and tree services in thriving cities like Media, Norristown, and West Chester. Whether you're in Wayne, Ardmore, or King of Prussia, we're committed to transforming your outdoor spaces into breathtaking landscapes. Our services extend to the charming towns of Bryn Mawr, Lansdowne, and Malvern, where we specialize in eco-friendly and sustainable landscaping solutions. Experience unparalleled professionalism and creativity with Robert O'Sullivan Landscape Contractor, your go-to choice for all your landscaping needs in Pennsylvania's most picturesque counties.​

Growing up, I was practically born into landscaping, handling machinery almost as soon as I could walk. By 16, I was already a seasoned pro in the field, balancing hard work with a bit of youthful rebellion.
Fast forward to 1984, when I graduated from West Chester University with a business degree and a burning desire to create my own path in landscaping, guided by the simple principles of delivering top-notch service at fair prices.
Now, 36 years later, we've maintained the loyalty of our original customers and earned the trust of respected businesses in the Delaware Valley. We continue to grow, one client at a time, just like my father did.​


(610) 789-7675

Copyright© 2023 Robert O'Sullivan Landscaping Contractors /


Serving Our Neighbors In Delaware Co. , Montgomery Co., Chester Co. & The Mainline in Pennsylvania Since 1984

(610) 789-7675

O'Sullivan landscape Contractor 610-789-7675

(610) 789-7675