Mercer Island Tree Removal, Tree Trimming, Landscaping & Hardscaping Services

Mercer Island's Tree & Landscaping / Hardscaping Expert

For over 20 years, MTS Tree & Landscape has been the trusted name for discerning homeowners on Mercer Island. We deeply appreciate the island's unique blend of natural beauty and refined residences, and our services are meticulously tailored to complement this distinct environment. Our commitment is to provide tree and landscape solutions that not only enhance the aesthetic appeal of your property but also ensure its safety and long-term health, reflecting the serene elegance of Mercer Island living. With over 1000 5-star reviews, our track record of quality on Mercer Island is clear.


When it comes to tree care on Mercer Island, our expertise is second to none. Our certified arborists are highly adept at safe tree removal, whether it's a challenging job near a water view or clearing space for new landscape features. We also perform meticulous tree trimming and pruning, essential for the well-being and graceful shape of your trees. Efficient stump grinding ensures a clean slate post-removal. For any urgent tree situations, our responsive emergency tree service provides prompt assistance. Furthermore, our arborist consultation offers invaluable expert advice, helping Mercer Island residents protect their valuable tree assets.


Beyond our specialized tree services, MTS Tree & Landscape crafts breathtaking outdoor spaces across Mercer Island. We excel in creating vibrant foundations with fresh grass, sod, or artificial turf, and designing captivating elements like custom planters and tranquil water features. Our hardscaping services include installing elegant natural stone and paver pathways, constructing sturdy retaining walls that enhance property lines, and building charming arbors, pergolas, and trellises that add architectural interest. Plus, our convenient mulch delivery service helps maintain your landscape's pristine condition. Partner with MTS Tree & Landscape to transform your Mercer Island property into the outdoor sanctuary you envision.

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MTS Tree & Landscape is the trusted partner for Mercer Island’s exclusive residential community. We provide expert tree felling, removal, fine pruning, and hedge trimming. Our team also specializes in high-end landscape design and premium hardscaping. This includes custom stone patios, structural retaining walls, and luxury waterfront outdoor living spaces.

Mercer Island is a unique 6-square-mile community in Lake Washington, accessible only via I-90. It is home to some of the most valuable waterfront and lakefront estates in the Pacific Northwest.

Because of the island’s mature tree canopy and strict city regulations under MICC 19.10, every project requires careful planning. Shoreline considerations and environmental protections mean that permitting is often a critical first step.

Logistics are also key to our success here. All equipment, materials, and crews access the island via the I-90 corridor, which we factor into every project schedule. Whether your property is a western lakeshore estate, a hilltop view lot, or an established interior home, we bring a level of precision that matches the high standards Mercer Island properties deserve.

Contact us online or call (425) 369-8733 to schedule your complimentary on-site consultation.

Expert Tree Felling and Removal Services on Mercer Island

Tree removal on Mercer Island often involves additional considerations. Many residential properties feature large conifers positioned within 15 to 30 feet of the home, over patios and pools, or along lakefront bluffs where root systems may contribute to slope stability. With homes valued from $2M to $15M or more, careful planning is essential.

MTS Tree & Landscape handles every type of tree removal scenario found on Mercer Island. We specialize in removing hazardous trees overhanging homes and clearing storm-damaged conifers from steep, lakeside lots.

Our team also manages dead or declining trees near foundations and removes those interfering with your views or new construction. Whether you need selective clearing for a landscape renovation or a full property cleanup, we bring the expertise required for the island’s unique terrain.

For homeowners searching for tree service companies near Mercer Island, experience with these types of property conditions is an important factor alongside equipment and crew capability.

How Much Does Tree Removal Cost on Mercer Island, Washington?

Tree removal on Mercer Island typically ranges from $400 to $20,000 or more, depending on tree size, species, access conditions, and whether crane assistance is required. Costs may be higher than some mainland projects due to logistics, access constraints, and site protection requirements.

Tree Size Height Range Typical Cost Common Mercer Island Species
Small Under 25 ft $400 to $1,000 Ornamental cherry, Japanese maple, birch
Medium 25 to 50 ft $1,000 to $3,200 Red alder, Western red cedar, vine maple
Large 50 to 80 ft $3,200 to $7,000 Douglas fir, Big Leaf Maple, large Hemlock
Very large / waterfront / crane-assisted 80+ ft $7,000 to $20,000+ Old-growth conifers on bluffs, lakefront specimens

Why Mercer Island Tree Removal Commands Premium Pricing

All equipment and materials must be mobilized across I-90, adding logistics complexity that mainland jobs do not carry. Many properties feature steep lakefront bluffs, narrow access driveways, and large trees positioned within feet of high-value structures.

Crane access is limited on certain island streets. These factors combine to make Mercer Island tree removal consistently more complex and labor-intensive than comparable mainland work, and that is reflected in project pricing.

Learn more about our tree removal services or call (425) 369-8733 for a free Mercer Island estimate.

Do You Need a Permit to Remove a Tree on Mercer Island, WA?

The City of Mercer Island regulates tree removal through its tree code (MICC 19.10). Permits are required for the removal of many significant trees on residential properties, and MTS Tree & Landscape can assist with that process.

What Are the City of Mercer Island Tree Removal Codes and Significant Tree Regulations?

Mercer Island’s tree code defines significant trees by diameter at breast height (DBH), with permits required before removal of trees meeting that threshold on residential lots.

Trees located within critical areas, such as shoreline buffer zones, steep slopes, and wetland buffers, may have additional restrictions that can affect removal approvals.

The city’s code also includes view-related provisions that may apply in certain situations, subject to formal review.

Can I Remove a Tree on My Own Property on Mercer Island Without City Approval?

Generally no. Unpermitted removal of a significant tree on Mercer Island can result in fines and replacement requirements. Limited exemptions may exist for hazardous or dead trees, but documentation is typically required.

MTS Tree & Landscape handles the full Mercer Island permit process, from application through compliance confirmation.

Does the City of Mercer Island Require Tree Replacement After Removal?

Yes, replacement planting is typically required. Ratios vary based on the size and location of the removed tree, and trees removed from shoreline zones or other critical areas may face enhanced replacement requirements.

MTS Tree & Landscape sources, delivers, and plants compliant replacement species as part of the removal project to ensure your permit closes without issue.

Mercer Island Tree Permit Quick Reference:

Permits required for removal of most significant trees on residential properties

Trees in shoreline zones, steep slopes, and critical areas face additional protections

View corridor provisions may apply but do not override tree preservation without formal review

Replacement planting is typically mandatory, with enhanced ratios in critical areas

Fines for unpermitted removal can be substantial

MTS Tree & Landscape handles all Mercer Island tree permit applications

Storm Damage Cleanup and Emergency Tree Removal on Mercer Island

Mercer Island’s exposed position in Lake Washington makes it a high-risk zone during Pacific Northwest windstorms. Because wind travels across open water with almost no obstruction, lakefront and hilltop properties face intense wind loading.

This is especially true for winds coming from the south and southwest. As a result, the island often sees downed trees at a higher rate than more sheltered mainland communities.

MTS Tree & Landscape provides 24/7 emergency tree removal and storm damage cleanup throughout Mercer Island. Our rapid-response team is specifically equipped to handle:

  • Waterfront Emergencies: Removing large trees fallen on lakefront homes or docks.
  • Road & Driveway Clearance: Clearing conifers blocking the island’s narrow residential road network.
  • Bluff Stabilization: Addressing trees destabilized by saturated soil and heavy rain on steep lakeside banks.
  • Debris Hauling: Providing full-site cleanup to restore your property’s safety and aesthetics.

For 24/7 emergency tree removal on Mercer Island, call MTS Tree & Landscape at (425) 369-8733 for immediate response.

Mercer Island Hedge Trimming, Property Line Clearing, and Fine Pruning

Many Mercer Island properties feature extensive hedgerows along property boundaries, including laurel, arborvitae, privet, and photinia, maintained at heights that provide meaningful privacy on the island’s more densely built interior streets.

Alongside those, established ornamental gardens showcase specimen trees that require skilled hands: Japanese maples, magnolias, stewartia, dogwoods, and weeping conifers that have been shaped over years to define the character of the property.

MTS Tree & Landscape provides hedge trimming and property line clearing as a standalone service or as part of a broader landscape maintenance program. For specimen ornamental trees, we follow ISA pruning standards and ANSI A300 specifications, preserving the form and long-term health of trees that represent a significant landscape investment.

What Is the Best Time of Year for Tree Trimming on Mercer Island?

  • Deciduous trees(maples, alder, birch): Dormant season, late fall through early spring.
  • Spring-flowering ornamentals(cherry, magnolia, dogwood): Immediately after bloom to preserve the following season’s flower buds.
  • Conifers(Douglas fir, cedar, hemlock): Late spring through early summer after new growth hardens.
  • Formal hedges(laurel, arborvitae, photinia): Two to three times per growing season, late spring, midsummer, and early fall.
  • Storm preparation thinning: Late summer through early fall before Pacific Northwest windstorm season.

Explore our tree trimming services or contact us for a Mercer Island pruning consultation.

High-End Landscape and Hardscape Design for Mercer Island Homes

Mercer Island’s homes range from well-maintained mid-century residences on the island’s interior streets to newly built waterfront estates with outdoor environments designed to maximize Lake Washington views.

In either case, the expectation for outdoor workmanship is high. MTS Tree & Landscape provides custom landscape design and installation calibrated to that standard, not templated suburban landscaping.

Services include custom landscape design, waterfront-specific planting for erosion control and shoreline stabilization, seasonal color programs, ornamental garden design with Japanese garden elements, native plantings integrated with formal garden structure, and full yard renovation for estate-level properties.

For homeowners searching for landscaping services on Mercer Island, experience with the island’s site conditions and regulatory requirements is an important factor in project planning and execution.

What Landscaping Designs Work Best for Mercer Island’s Waterfront Estates and Lakefront Climate?

On Mercer Island, successful landscape design is a balance of beauty and environmental stability. For lakefront properties, we often combine native shoreline plantings (i.e. red-osier dogwood, native willows, sedges, and rushes) to provide natural erosion control. These species thrive in the moist, windy conditions of Lake Washington while protecting the shoreline.

To maximize usable space on sloped lots, we integrate terraced planting beds with species adapted to the local microclimate. We also frequently install low-voltage landscape lighting to enhance evening visibility and safety. Our designs focus on minimizing glare to preserve the island’s dark-sky aesthetic while highlighting the natural features of your waterfront.

For interior Mercer Island lots, we focus on creating private, layered sanctuaries. This often involves:

  • Evergreen Hedging: Using Arborvitae or Laurel for year-round privacy screening.
  • Layered Ornamental Gardens: Combining Japanese maples, hydrangeas, and rhododendrons for seasonal color.
  • Understory Planting: Utilizing shade-tolerant natives like sword ferns and salal beneath your existing tree canopy.

Well-designed landscaping significantly boosts curb appeal and property desirability. While the exact impact on property value depends on design quality and market conditions, a functional, professionally maintained landscape is a primary differentiator for luxury Mercer Island estates.

How Do You Prevent Erosion Near Lake Washington?

Lakefront erosion control on Mercer Island properties typically involves a combination of structural and vegetative approaches. Structural solutions may include retaining walls, rock armoring, and engineered stabilization systems where appropriate. Vegetative solutions include deep-rooted native plantings, willow staking, and coir log installation to help stabilize soil as vegetation becomes established.

Work within shoreline areas is regulated under the Washington State Shoreline Management Act and local Mercer Island shoreline regulations. Permits are generally required for shoreline development, vegetation modification, and structural improvements. Property owners should confirm applicable requirements with the City of Mercer Island before beginning work.

See our full landscaping services for Mercer Island homeowners.

Custom Stone Patios, Retaining Walls, and Outdoor Living Spaces on Mercer Island

Hardscaping on Mercer Island waterfront properties is often designed to maximize lake and mountain views while creating functional outdoor living spaces.

Multi-level terraced patios descending toward the water, natural stone staircases to docks, outdoor fire features positioned for evening use, and covered living areas designed for year-round enjoyment are commonly requested on high-end waterfront properties.

Interior properties often focus on privacy-oriented outdoor rooms, covered living spaces, and formal garden hardscaping with natural stone and clean architectural lines. MTS Tree & Landscape designs and installs a full range of hardscape elements for Mercer Island properties, including:

  • Structural and decorative retaining walls
  • Custom paver and natural stone patios
  • Driveway paver installation
  • Outdoor kitchens and fire features
  • Water features
  • Stone staircases connecting terraced yard levels and lakefront access

How Much Does It Cost to Build a Retaining Wall or Custom Patio on Mercer Island?

Costs can vary widely depending on materials, site conditions, access, and permitting requirements. Typical project ranges based on regional contractor estimates include:

Project Type Cost Range (Installed) Notes
Natural stone patio (bluestone, basalt) $15,000 to $45,000+ Premium material; hand-set patterns
Paver patio (200 to 500 sq ft) $10,000 to $30,000 Includes excavation, base prep, and materials
Retaining wall (segmental block) $30 to $60 per sq face foot Standard residential applications
Retaining wall (natural stone) $45 to $85+ per sq face foot Decorative or high-visibility walls
Waterfront retaining / bulkhead support wall $50 to $120+ per sq face foot Engineered; shoreline permits often required
Outdoor kitchen / fire feature $15,000 to $60,000+ Custom-built installations
Stone stairway to dock or lakefront $5,000 to $20,000+ Based on height, materials, and access

What Premium Hardscaping Features Are Most Popular for Mercer Island Waterfront Properties?

Commonly requested waterfront hardscape features on Mercer Island reflect a focus on outdoor living and views. Multi-level terraced patios with Lake Washington and Cascade Mountain views are among the most popular features.

Natural stone staircases connecting upper property areas to the dock level are commonly found on lakefront properties. Gas fire pits and fireplaces, covered outdoor living spaces with heating, outdoor kitchens, and low-voltage landscape lighting are also frequently included in project designs.

Mercer Island’s Common Waterfront Hardscaping Features:

Multi-level terraced patios with lake and mountain views

Natural stone staircases connecting upper property to lakefront access

Gas fire pits and fireplaces for outdoor use

Covered outdoor living areas with heating

Low-voltage landscape lighting designed to enhance visibility and ambiance

Explore our hardscaping services or call (425) 369-8733 for a Mercer Island patio, retaining wall, or outdoor living consultation.

How Do I Find a Licensed, Bonded, and Insured Tree Service Company on Mercer Island?

On a property worth several million dollars, contractor verification is not optional. For Mercer Island homeowners, the standard checklist should include:

Mercer Island Homeowner Verification Checklist

  • Active Washington State contractor license (verify at lni.wa.gov)
  • General liability insurance ($2M+ recommended for waterfront and high-value properties)
  • Workers’ compensation coverage for all crew members
  • ISA Certified Arborist on staff for all tree work
  • Familiarity with City of Mercer Island tree code (MICC 19.10) and shoreline regulations
  • Experience with waterfront properties and lakefront erosion considerations
  • Portfolio of completed Mercer Island projects and verifiable local references

MTS Tree & Landscape carries full Washington State licensing, general liability and workers’ compensation insurance, employs ISA Certified Arborists, and has a demonstrated portfolio of work on Mercer Island residential and waterfront properties. We provide written, itemized estimates on every project and are glad to provide island-specific references.

Expert Viewpoint: Mercer Island Properties Require a Provider Who Understands Island-Caliber Standards

Mercer Island is unlike any other community on the Eastside. The combination of unique island logistics, one of the region’s most protective tree ordinances, and strict Washington State Shoreline Management Act requirements means the margin for error on any project here is essentially zero.

Managing waterfront bluff complexity alongside ultra-premium property values requires a specialized approach that goes far beyond standard landscaping.

A retaining wall on a lakefront bluff is a fundamentally different engineering challenge than a similar project in a flat suburban backyard.

Similarly, removing a massive Douglas fir just 20 feet from a multi-million-dollar home on a steep lakeshore lot requires a level of rigging precision and site protection that general crews simply cannot deliver.

The right provider brings ISA-certified arborist expertise, deep Mercer Island permitting knowledge, and specific shoreline construction experience. This ensures the quiet confidence needed to manage complex projects without disrupting the property or the client’s peace of mind.

From waterfront tree removal and fine ornamental pruning to lakefront landscape design and custom stone patios, MTS Tree & Landscape delivers the precision and quality Mercer Island homeowners expect. Contact us online or call (425) 369-8733 to schedule your complimentary on-site consultation.

Frequently Asked Questions About Tree and Landscaping Services on Mercer Island

Do I need a permit to remove a tree on Mercer Island?

Yes, the City of Mercer Island requires a permit for removal of many significant trees on residential properties, with additional protections for trees in shoreline zones and critical areas.

How much does tree removal cost on Mercer Island?

Tree removal on Mercer Island typically ranges from $400 to $20,000 or more, depending on tree size, access conditions, and project complexity. Waterfront, bluff, and crane-assisted removals are generally at the higher end.

Can I cut down a tree on my Mercer Island property without approval?

No, most significant tree removals on Mercer Island require city approval, and unauthorized removal can result in fines and required replacement planting.

What is the best time to trim trees on Mercer Island?

Deciduous trees are generally pruned during the dormant season (late fall through early spring), conifers in late spring through early summer, and formal hedges two to three times during the growing season.

Does Mercer Island require tree replacement after removal?

Yes, the City of Mercer Island typically requires replacement planting, with additional requirements possible for trees removed from shoreline zones and other regulated areas.

How much does a patio or retaining wall cost on Mercer Island?

Natural stone patios on Mercer Island commonly range from $15,000 to $45,000+, and retaining walls from $30 to $120+ per square face foot, depending on materials, site conditions, and permitting requirements.

What materials are best for waterfront hardscaping on Mercer Island?

Natural basalt, bluestone, and engineered concrete block are commonly used for waterfront hardscaping due to their durability in wet conditions and resistance to freeze-thaw cycles.

Do you offer emergency tree removal on Mercer Island?

Yes, MTS Tree & Landscape provides 24/7 emergency tree removal on Mercer Island for storm-damaged, fallen, and hazardous trees.

How do you prevent shoreline erosion on Mercer Island properties?

Lakefront erosion control typically combines structural solutions (such as retaining walls and rock armoring) with vegetative stabilization (including native plantings and willow staking). Most work within shoreline areas is regulated and may require permits.

Can landscaping increase property value on Mercer Island?

Well-designed landscaping can improve curb appeal and may contribute to property value, though the extent varies based on design quality, maintenance, and market conditions.

What are Mercer Island’s significant tree regulations?

The City of Mercer Island protects significant trees on residential properties through its tree code (MICC 19.10), requiring permits for removal and often replacement planting to maintain the tree canopy.

Service Areas:

King County, Sammamish, Issaquah, Bellevue, Mercer Island, Clyde Hill, Medina, Maple Valley, Newcastle, Woodinville, Redmond, Renton, Bothell, Seattle, Auburn, Tacoma, Federal Way, Covington, North Bend, Duvall