LANDSCAPING CONTRACTOR IN GLADSTONE, OREGON
Serving the Portland Metro Since 1987 | 285+ Five-Star Reviews | LCB# 7419 Get A Free QuoteLandscaping Services in Gladstone, Oregon
Gladstone sits at the confluence of the Clackamas and Willamette Rivers, where flat river-bottom lots meet older established neighborhoods on rising ground above the waterfront.
Monaghan’s Landscaping has been serving Gladstone homeowners since 1987, from retaining walls and drainage work near the river to sod installations, automatic sprinkler systems, and custom paver projects throughout the city.
We know this part of Clackamas County well, from the mature yards near Gladstone Park to the riverfront properties along the Clackamas, and we bring that local familiarity to every job we take on.
NOTE: We serve all of Multnomah County, Clackamas County, And Washington County. If you feel you live outside of these areas, give us a call. Chances are we serve your area too.
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Landscaping Contractor Services In Gladstone, OR
Retaining Wall Installation
Gladstone’s riverside lots and sloped properties above the Clackamas River make retaining walls one of the most practical investments Gladstone homeowners can make. Whether you’re dealing with erosion near the waterfront or need to terrace a backyard on rising ground above the river corridor, a properly engineered retaining wall from Monaghan’s controls soil movement, creates usable flat space, and holds up through Oregon’s wet winters. We’ve completed hundreds of retaining wall Installation projects across Clackamas County.
New Sod Lawn Installation
Gladstone’s older established lots often have compacted soil and patchy turf that’s been struggling for years under Oregon’s cycle of wet winters and dry summers. Monaghan’s installs premium sod varieties suited to the Clackamas County climate, including perennial ryegrass and fine fescue blends recommended by OSU Extension for western Oregon lawns. Sod gives you instant green without waiting through a seeding cycle, and our installations include full soil prep and grading to ensure it roots quickly through the rainy season.
Sprinkler System Installation
Dry summers are harder on Gladstone yards than most local homeowners expect. The area can go weeks without meaningful rain from July through September, and hand-watering rarely keeps pace with a full lawn and planted beds. Monaghan’s designs and installs automatic sprinkler systems throughout the Gladstone, OR area, with multi-zone setups built to handle varied terrain and lot layouts. Smart scheduling keeps water use efficient while keeping grass green through the dry stretch. Ask about our sprinkler installations and system upgrades throughout Gladstone and the surrounding area.
Artificial Turf Installation
Gladstone’s proximity to the river and its extended rainy season create exactly the conditions where natural grass struggles, like persistent mud from fall through spring, shaded lots that never fully dry out, and high-traffic backyard areas that wear down to bare soil by mid-summer. Synthetic grass from Monaghan’s holds up under all of it: no muddy paws, no re-seeding, no brown patches. Modern artificial grass drains fast, looks realistic year-round, and stands up to Oregon’s wet winters without matting or fading. it’s a popular upgrade near the Meldrum Bar area and throughout the river corridor.
Paver Installation
Pavers are one of the top upgrades for Gladstone homeowners looking to replace aging concrete patios, walkways, and driveways on properties where the original flatwork has shifted or cracked over the years. Monaghan’s installs paver patios, walkways, and driveways using precision base prep that prevents the settling and heaving that’s common on Gladstone’s older lots near Gladstone Park and throughout the established neighborhoods above the river. The result is a long-lasting, attractive surface that adds real curb appeal and value to your property.
Drainage Solutions
Gladstone’s older neighborhoods often have original grading that’s settled or eroded over decades, sending water toward foundations instead of away. We install French drains, catch basins, and regrading solutions that correct years of gradual soil movement and protect your home.
Beyond our five core services, we handle a full range of residential and commercial landscaping projects across the Portland metro area.
Every project, from a simple mulch installation to a full outdoor kitchen build, gets the same treatment: a written proposal with line-item pricing and a defined scope before work starts.
Gladstone Landscaping Contractors
Monaghan’s Landscaping is a Gladstone landscaping company with nearly four decades serving Clackamas County residents. Our crews have completed hundreds of projects throughout the area, from sod and sprinkler installations on flat river-bottom lots to retaining walls and drainage work on the sloped properties above the Clackamas.
Every job comes with a workmanship warranty and a detailed written quote, and we won’t leave until the work meets the standard we set in the estimate. We’re not satisfied until you feel we deserve a 5-star review. As Gladstone landscapers who know this part of the county, we’re equipped to handle the drainage and erosion challenges that come with properties near the river corridor.
Gladstone’s location between the Clackamas and Willamette Rivers creates a distinct set of landscaping challenges that take real experience to handle well. Soil conditions near the river corridor are different from those on the higher ground above it, drainage requirements vary block by block, and the older lot sizes throughout the city require a contractor who knows how to work efficiently in tighter spaces.
Monaghan’s has been navigating those conditions on Gladstone properties for for more than 38 years, and that depth of local knowledge shows up in the quality of every estimate and every finished project we deliver.
Looking for a Gladstone, Oregon landscaper with a long track record in the area? No matter the scope of the project, Monaghan’s brings the same attention to detail we’ve applied to thousands of completed projects across the region. We serve all of Gladstone and the surrounding area, including Clackamas, Happy Valley, and Portland. Call (503) 847-9110 or fill out the contact form below for a fast, free quote.
Frequently Asked Questions
Quick Reference
Monaghan's Landscaping LLC
7925 SW Canyon Ln, Portland, Oregon 97225
Monday through Sunday, 7:00 AM to 6:00 PM
Fully licensed, bonded, and insured
A+
All of Multnomah, Clackamas, and Washington Counties
1987
Q: What areas of Gladstone do you serve?
Monaghan’s serves all of Gladstone, Oregon, including neighborhoods near Gladstone Park, the Clackamas River waterfront, Meldrum Bar, and throughout the established residential areas above the river corridor. We cover the full Clackamas County area and regularly work in neighboring cities including Milwaukie, Oregon City, and Happy Valley. No matter where your property sits in the Gladstone area, give us a call at (503) 847-9110 or fill out the contact form below and we’ll confirm your address is within our service range.
Q: Do you work on steep or hilly Gladstone properties?
Yes. Gladstone has a mix of flat river-bottom lots and properties on rising ground above the Clackamas, and our crews have extensive experience on both. We build retaining walls to manage slope and erosion, grade sites for sod and paver installations on uneven terrain, and design sprinkler systems that account for varied elevations throughout the property. Steep lots also often need drainage solutions built into the scope of work from the start, something we address during the free estimate process before any materials are ordered or work begins.
Q: What type of sod grows best in Gladstone’s climate?
Clackamas County’s mild, wet winters and warm dry summers favor cool-season grass varieties. Monaghan’s installs perennial ryegrass and fine fescue blends recommended by OSU Extension for western Oregon lawns. Perennial ryegrass handles traffic and establishes quickly, while fine fescues perform well in the shadier areas common on Gladstone’s older lots with mature tree cover. Both hold up through the rainy season and recover well from the summer dry stretch.
Q: How does Gladstone’s location near the river affect drainage and grading work?
Significantly. Properties near the Clackamas River corridor deal with a higher water table during wet season, and low-lying lots throughout the city can stay saturated from October through March. Proper drainage planning is essential on these properties, whether that means grading away from the foundation, installing a retaining wall that manages slope and runoff, or designing a sprinkler system that doesn’t compound existing moisture problems. Monaghan’s estimators flag drainage considerations on every Gladstone site visit and address them in the project scope before any work is scheduled.
Q: What permits are required for retaining walls in Gladstone?
The City of Gladstone and Clackamas County typically require permits for retaining walls above a certain height, generally four feet or taller measured from the bottom of the footing. On properties near the river or within flood-plain adjacent areas, additional review may apply depending on the site. Monaghan’s handles the permitting process as part of the project, including pulling the necessary permits and coordinating any required inspections. We confirm the specifics for your lot during the estimate before any work begins.
Q: Do you work on riverfront and waterfront properties in Gladstone?
Yes. Gladstone’s location at the confluence of the Clackamas and Willamette Rivers means a share of properties in the city sit on or near the water, where soil saturation, erosion, and flood-plain setback requirements all affect the scope of landscaping work. Retaining walls on riverside lots require careful engineering to handle seasonal moisture load, and grading work needs to account for drainage direction relative to the waterway. Monaghan’s assesses these sites carefully during the free estimate and confirms any applicable county permit or setback requirements before any work begins.
Q: Do Gladstone’s older lots require special preparation before installation?
Often, yes. Gladstone has some of the oldest residential lots in Clackamas County, and older properties commonly have compacted subsoil, settled grading, aging drainage infrastructure, and turf that has been declining for decades. Before installing sod, pavers, or a sprinkler system, proper site preparation makes the difference between a project that holds up long-term and one that needs repairs within a few seasons. Monaghan’s includes full soil prep and grading assessment in every installation estimate so the condition of the existing lot is addressed before materials go in.
Q: How do I get a free estimate for my Gladstone landscaping project?
Call us at (503) 847-9110 or fill out the contact form below and we’ll get back to you promptly. Free written estimates are available for all of our services, e.g. retaining walls, sod, sprinklers, artificial turf, and pavers. We serve all of Gladstone, Oregon and the surrounding Clackamas County area.
Why Gladstone Homeowners Choose Monaghan’s Landscaping
A landscaping project is one of the biggest investments you'll make in your property. That's why every Monaghan's project starts with a free on-site consultation and a written proposal with line-item pricing, material specs, and a clear timeline. No verbal ballparks. No vague estimates. No surprises.
38+
years in Portland
285+
five-star reviews
A+
BBB rating
3 yr
workmanship warranty
Licensed, bonded, insured — Oregon LCB# 7419 👈 click to verify
Line-item written estimates — on-site consultation, full scope before work begins
5-star commitment — we won't leave until we've earned your 5-star review, see our live Google reviews
Eco-friendly equipment — electric at 65-70 dB, quieter than conversation, no nasty exhaust fumes
65 dB
our equipment
85 dB
gas equipment
Your Neighbors Will Notice the Difference
We're committed to using clean, renewable energy. All-electric mowers, trimmers, and blowers running at 65-70 dB, roughly the volume of a normal conversation. Most landscaping crews show up with gas equipment at 85+ decibels with exhaust fumes drifting into open windows. We don't think that's acceptable anymore. No fumes. No noise complaints. Just the work getting done.
"The crew showed up on time and cleaned the site at the end of each day, and they were all incredibly talented and friendly. The final outcome exceeds expectations. The project was to remove marshy grass, put in drainage, then install architectural slabs with Mexican pebbles, topped off with low voltage lighting which is amazing."
Heather Gordon
Oregon City, Oregon
Neighborhoods We Serve In Gladstone, OR
- City Center
- Fairway Village
- Gladstone Park
- Glen Echo
- Meldrum Bar
- River Run
Areas We Serve
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