LANDSCAPING CONTRACTOR IN BEAVERTON, OREGON
Serving the Portland Metro Since 1987 | 285+ Five-Star Reviews | LCB# 7419 Get A Free QuoteLandscaping Services in Beaverton, Oregon
Beaverton is one of the largest residential cities in Washington County, with neighborhoods that range from mid-century homes on established lots in Cedar Hills and Five Oaks to newer construction in the developments spreading west toward Bethany and South Cooper Mountain.
Monaghan’s Landscaping has been serving Beaverton homeowners since 1987, installing retaining walls, sod lawns, automatic sprinkler systems, artificial turf, custom paver projects, and drainage solutions across every part of the city.
From the mature, tree-lined yards in Murray Hill and Garden Home to the family-sized lots throughout Sexton Mountain and Progress Ridge, we bring firsthand knowledge of Beaverton’s soil conditions, lot layouts, and seasonal drainage patterns to every project 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 Beaverton, OR
Retaining Wall Installation
Parts of Beaverton have more slope than homeowners expect, especially on properties near West Slope and the higher ground through Highland where yards drop off toward the back lot line. A properly engineered retaining wall from Monaghan’s controls that grade change, creates usable flat space for patios or lawn areas, and holds up through Oregon’s wet winters without shifting or settling. We’ve completed hundreds of retaining wall installation projects across Washington County and bring that depth of experience to every Beaverton property we assess.
New Sod Lawn Installation
Beaverton’s older neighborhoods around Vose and Greenway often have compacted, thinning turf that’s been declining for years under the cycle of wet winters and dry summers. Newer builds toward South Cooper Mountain come with builder-grade soil that struggles to support healthy grass without proper prep. Monaghan’s installs premium sod suited to Washington County’s climate, including perennial ryegrass and fine fescue blends recommended by OSU Extension for western Oregon lawns. Every installation includes full soil prep and grading so new sod roots quickly and establishes evenly.
Sprinkler System Installation
Portland-area summers are deceptively dry, and Beaverton is no exception. The area routinely goes five to eight weeks without meaningful rain between July and September, and hand-watering rarely keeps pace with a full lawn and planted beds through that stretch. Monaghan’s designs and installs automatic sprinkler systems throughout the Beaverton, OR area, with multi-zone setups built to handle the varied lot sizes you find across the city. Smart scheduling keeps water bills manageable while keeping grass green through the dry months. Ask about our sprinkler installations and system upgrades.
Artificial Turf Installation
Beaverton’s mature tree canopy in neighborhoods like Oak Hills and Murray Hill creates heavy shade where natural grass thins out and stays damp and muddy from fall through spring. High-traffic backyard areas get worn down to bare soil well before summer. Synthetic turf from Monaghan’s holds up under all of it: no muddy paws, no re-seeding, no brown patches under the canopy. 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 for Beaverton families with kids, dogs, or both.
Paver Installation
Beaverton’s mid-century neighborhoods in Cedar Hills and Five Oaks have some of the oldest residential concrete in Washington County. Cracked driveways, sunken walkways, and aging patio slabs are common on properties where the original flatwork has been settling for forty or fifty years. Monaghan’s installs paver patios, driveways, and walkways using precision base prep that prevents the shifting and heaving common on Beaverton’s older lots. The result is a long-lasting, attractive surface that adds real curb appeal and value to your property.
Drainage Solutions
Washington County’s clay-heavy soil drains slowly, and many Beaverton properties in areas like Somerset and Sexton Mountain hold water through the rainy season in ways the original grading never accounted for. We install French drains, catch basins, and regrading solutions that move water away from foundations and off saturated lawn areas before it causes damage.
Beyond our five core services, we handle a full range of residential and commercial landscaping projects across the Portland metro area.
Beaverton Landscaping Contractors
Monaghan’s Landscaping is a Beaverton landscaping company with nearly four decades serving Washington County and the greater Portland area. Our crews have completed hundreds of projects throughout the city, from sod and sprinkler installations on the flat suburban lots through Cedar Hills and Five Oaks to retaining walls and drainage work on the sloped properties near West Slope and Highland. 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.
Beaverton is the largest city in Washington County and one of the biggest residential markets in the Portland metro. That means local homeowners have plenty of contractors to choose from, but not all of them know the difference between working on compacted clay in Somerset and prepping a base on the sandy loam closer to Fanno Creek. Monaghan’s has been handling those site-specific conditions on Beaverton properties 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 Beaverton, 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. Whether you’re replacing an aging patio in Cedar Hills or installing a new lawn and sprinkler system on a recent build near South Cooper Mountain, call (503) 847-9110 or use the contact form below to get started with a free estimate from a Beaverton landscaper who knows the area. We also serve neighboring Portland, Lake Oswego, and Tigard.
Frequently Asked Questions
Quick Reference
Monaghan's Landscaping LLC
7925 SW Canyon Ln, Portland, Oregon 97225
Monday through Saturday, 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 Beaverton do you serve?
Monaghan’s Landscaping serves all of Beaverton, Oregon, including Cedar Hills, Five Oaks, Murray Hill, West Slope, Highland, Sexton Mountain, Progress Ridge, Oak Hills, and the newer developments near South Cooper Mountain and Bethany. We also cover all of Washington County, Multnomah County, and Clackamas County. Call (503) 847-9110 or use the contact form below to confirm service to your address.
Q: What type of sod grows best in Beaverton?
Perennial ryegrass and fine fescue blends are the top-performing varieties for Beaverton’s wet winters and dry summers, and are the varieties recommended by OSU Extension for lawns throughout western Oregon. These blends establish quickly, handle foot traffic well, and stay green through the cooler months. Monaghan’s uses these as the standard for all sod installations in the Beaverton area.
Q: Do you work on older mid-century homes in Beaverton?
Yes. Many of Beaverton’s mid-century homes in Cedar Hills, Five Oaks, and Vose were built in the 1950s through 1970s with original concrete and grading that has shifted or settled over the decades. Our crews regularly handle paver replacements for cracked driveways and patios, drainage corrections for yards where the original grading no longer moves water away from the foundation, and retaining walls on properties where slope conditions have worsened over time.
Q: What permits are required for retaining walls in Beaverton?
In the City of Beaverton, retaining walls over four feet in height generally require a building permit. Walls on slopes, near property lines, or supporting surcharges like driveways may have additional engineering and setback requirements under Washington County and City of Beaverton building codes. Monaghan’s is familiar with local permitting for residential retaining wall projects and can help guide you through what’s needed for your specific site.
Q: Does Beaverton’s clay soil cause problems for landscaping?
Yes, it’s one of the most common issues we deal with on Beaverton properties. Much of Washington County sits on clay-heavy soil that drains slowly, holds moisture, and expands and contracts with seasonal temperature changes. That affects everything from how we prep a base for paver patios to the drainage layers we install behind retaining walls. Properties near Fanno Creek and in lower-lying parts of the city tend to have the heaviest clay conditions.
Q: Do you work on newer construction homes in Beaverton?
Yes. Newer developments around South Cooper Mountain, Bethany, and Progress Ridge often come with graded but unfinished yards, compacted builder soil, and minimal established landscaping. Monaghan’s works regularly on new construction properties throughout Beaverton, including sod installation, sprinkler systems, and paver work on lots where builders have left the final landscaping to the homeowner.
Q: How does Beaverton’s rainy season affect landscaping projects?
Beaverton receives roughly 37 to 40 inches of rain per year, with the heaviest months running from November through March. That affects project scheduling, but it doesn’t shut work down entirely. Retaining walls and drainage installations can often proceed through the wet season with proper site management. Sod installs actually benefit from fall and early spring moisture, which helps new turf root in quickly. We schedule around weather windows and communicate timing clearly during the estimate process.
Q: How do I get a free estimate for my Beaverton landscaping project?
Call us at (503) 847-9110 or fill out the contact form below with a brief description of your project. We’ll get back to you quickly to schedule a site visit and provide a written estimate at no charge.
Why Beaverton Homeowners Choose Monaghan’s Landscaping
When you’re investing in landscaping projects for your property, you want a contractor who understands Portland-area soil, climate, and terrain. Here’s why homeowners across the metro area trust Monaghan’s.
38+
years in Portland
285+
five-star reviews
A+
BBB rating
3 yr
workmanship warranty
Licensed, bonded, insured — Oregon LCB# 7419 👈 click to verify
Free 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
Committed to cleaner, quieter landscaping
We're committed to using clean, renewable energy. We've deployed all-electric mowers, trimmers, and blowers across our fleet. No exhaust fumes, no 85-decibel noise at 7 AM. Our electric equipment runs at conversation level, and we're converting our remaining vehicles to electric and hybrid next. Your neighbors will thank you.
Neighborhoods We Serve In Beaverton, OR
- Bethany
- Cedar Hills
- Central Beaverton
- Cooper Mountain
- Denney Whitford
- Five Oaks
- Garden Home
- Greenway
- Highland
- Hiteon
- Marlene Village
- Murray Hill
- Neighbors Southwest
- Oak Hills
- Progress Ridge
- Raleigh West
- River Terrace
- Sexton Mountain
- Somerset
- South Beaverton
- Triple Creek
- Vose
- West Beaverton
- West Slope
Areas We Serve
Don't see your area? Give us a call, we probably serve your area too! Call (503) 847-9110
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