Stump Removal & Grinding in Mercer Island, WA

MTS Tree and Landscape provides stump removal and stump grinding on Mercer Island for single stumps, multiple stumps, large tree stumps, tight-access yards, and properties being prepared for landscaping or construction.

For most properties, stump removal means grinding the stump below grade rather than excavating the entire root system. Full stump excavation is a separate, more disruptive option used when the next project requires the root ball or major roots physically cleared.

We've served King County since 2005 and are licensed, bonded, and insured in Washington.

Call (425) 369-8733 or request a free stump-grinding estimate.

Should You Grind the Stump or Remove It Completely?

Stump grinding is the right approach for most Mercer Island yards. Full stump excavation is generally reserved for construction, foundations, structural hardscape, or a specific root conflict that cannot be solved by grinding alone.

Grinding causes much less disturbance because most lateral roots stay underground and decompose over time.

Full excavation leaves a considerably larger hole and disturbs more surrounding soil.

Do Stump Grinders Remove All the Roots?

No. Stump grinding removes the stump and main root crown to the agreed depth, not the entire root system.

Some surface roots can be included when they interfere with lawn, planting, or another planned use. Deep lateral roots normally remain underground unless the project specifically requires targeted root removal or full excavation.

Tell us what you intend to do with the area before we quote the job.

How Much Does Stump Grinding Cost on Mercer Island?

Current MTS regional stump-grinding prices generally run from about $150 to $250 for a stump under 12 inches to $600 to $1,200 or more for a stump 36 inches and larger. Root flare, slope, access, depth, cleanup, and multiple stumps can change the final price.

These are regional planning ranges, not fixed Mercer Island quotes.

Cost usually changes with:

• Stump diameter and root flare
• Surface roots
• Wood density
• Slope
• Gate and equipment access
• Grinding depth
• Rocks or other obstacles
• Chip haul-away
• Topsoil or restoration
• Number of stumps

Multiple stumps can often be handled more efficiently during one mobilization, but the final price still reflects the size and work required for each stump.

For a faster initial estimate, send us clear photos and an approximate measurement across the widest part of the stump.

Request a free stump-grinding estimate.

How Deep Should a Stump Be Ground?

Standard stump grinding is generally about 6 to 12 inches below grade, but the correct depth depends on what will replace the stump. Lawn restoration, planting, patios, and structural construction do not require the same site preparation.

This is why we ask about the next use before grinding.

A stump being removed so a mower can pass over the area does not need the same treatment as one sitting inside a future driveway or foundation.

Can You Plant a New Tree in the Same Spot?

A new tree does not have to be planted directly in the old stump location.

Grinding leaves decomposing woody material and roots below the surface. Depending on the site, an offset planting location can provide better soil and fewer conflicts than putting a new root ball directly into the former stump area.

What Happens to the Grindings and Remaining Roots?

Stump grinding produces a mixture of wood chips and soil, while most deeper lateral roots remain underground and decompose naturally.

Your estimate should define what happens to the grindings.

Depending on the agreed scope, they may be:

• Left on site
• Used as surface mulch where appropriate
• Spread within the grinding area
• Hauled away
• Replaced with topsoil for lawn or planting restoration

Do not assume chip removal, imported soil, sod, or final landscaping is included unless it appears in the estimate.

Grindings are also not structural fill for a patio, driveway, wall, or foundation.

Can the Tree Grow Back?

Most properly ground stumps do not regenerate from the original crown, but some vigorous hardwood species can continue sending up shoots from remaining roots.

If the removed tree was already producing suckers, mention that during the estimate so we can account for the remaining root system.

Can We Reach a Tight or Sloped Mercer Island Yard?

Many tight-access and sloped stump jobs are possible, but the machine has to match the stump and the route to it.

Before the estimate, note:

• Narrow gates or side yards
• Steps
• Steep grades
• Retaining walls
• Wet or soft lawn
• Fences
• Mature planting
• Waterfront access
• Limited equipment staging

Measure the narrowest gate or access point when possible.

We would rather know the restriction before scheduling than discover that the machine needed for a large stump cannot reach it.

What If the Stump Is Near a Retained Tree?

This is especially important on Mercer Island construction sites.

A stump may share its root area with a tree that must remain. Pulling the stump with excavation equipment can damage roots belonging to the retained tree.

Mercer Island development plans can therefore require a removed stump to be ground or cut to grade rather than pulled out, with additional arborist oversight where more root disturbance is necessary.

If the stump is part of an active permit or construction project, send us the approved tree plan before work begins.

What About Underground Utilities?

MTS Tree and Landscape coordinates the Washington 811 locate process before stump grinding as part of our standard safety procedure.

Under Washington's current dig law, excavation requests are made in advance and, since January 1, 2026, work cannot begin until the required positive responses have been received from the underground-facility operators identified by the locate request.

See the Washington Utilities and Transportation Commission's Call Before You Dig guidance.

811 Does Not Mark Every Private Line

Public utility locating does not necessarily identify privately owned underground infrastructure.

Tell us about known:

• Irrigation
• Landscape lighting
• Private electrical feeds
• Invisible fencing
• Septic components
• Private gas or water lines
• Other underground systems

If necessary, a private locator may be needed before grinding.

Stump Grinding Before Landscaping or Construction

The stump scope should match what comes next.

Lawn and Planting

For lawn restoration, the usual objective is to grind below grade, remove excess material where required, restore suitable soil, and create a level surface for seed or sod.

Planting beds may require more depth depending on the plants and remaining roots.

Patios and Walkways

A surface that will carry pavers or another hardscape needs a proper base.

Standard lawn-depth stump grinding should not automatically be treated as finished patio preparation. Tell us about the hardscape before grinding so the required depth and root work can be coordinated.

Driveways, Walls, and Foundations

Where the stump lies inside a structural footprint, the contractor or project documents should determine how much stump and root material must be cleared.

That may require deeper grinding, controlled root removal, or full excavation.

For larger outdoor projects, see our tree, landscaping, and hardscaping services on Mercer Island.

Do You Need City Approval Before Grinding a Stump?

The City does not publish a universal standalone stump-grinding permit, but that does not mean every Mercer Island stump can be disturbed without review.

Check the existing permit or City requirements when the stump is:

• Inside a critical area or buffer
• On a steep or geologically sensitive site
• Within shoreline jurisdiction
• Part of an active development project
• Near a retained or protected tree
• Inside a Tree Protection Zone
• Connected to regulated grading or excavation

Mercer Island states that most work affecting the ground or vegetation in a critical area requires a permit.

See the City's permit guidance for work in critical areas.

If the stump came from a tree removed under an approved development permit, review the approved tree and arborist documents before grinding or excavation.

Is Stump Grinding Included With Tree Removal?

No, stump grinding is usually a separate line item unless your written tree-removal estimate specifically includes it.

If you already know you want the stump removed, ask for both services to be scoped together.

Same-visit grinding can sometimes reduce a second mobilization, but equipment access and the tree-removal setup determine whether both jobs can actually be completed on the same visit.

See our tree removal services.

How Quickly Can Stump Grinding Be Scheduled?

Same-day or next-day stump grinding may be available when the crew schedule, utility locate, stump size, access, and equipment requirements allow.

Single stumps and smaller jobs are easier to fit into short-notice schedules. Large stumps, multiple-stump properties, difficult access, or full excavation generally need more planning.

Call (425) 369-8733 to check current availability.

Why Work With MTS Tree and Landscape?

We've served King County since 2005 and provide residential and commercial stump grinding throughout the region.

MTS Tree and Landscape is licensed, bonded, and insured in Washington under contractor registration SOUNDPL826DZ and UBI 603554491.

Our stump work includes:

• Small and large stumps
• Multiple-stump properties
• Tight-access yards
• Surface-root grinding where scoped
• Deeper grinding for future site use
• Commercial stump grinding
• Tree-removal and landscape coordination

Most importantly, we scope the stump around what you plan to do with the ground afterward.

Request a Mercer Island Stump Grinding Estimate

For the most useful quote, send us:

• Property address
• Number of stumps
• Approximate stump diameter
• Clear photos
• Narrowest gate or access width
• Slope or retaining-wall conditions
• Known private utilities or irrigation
• What you want to do with the area afterward
• Permit or arborist plans if the stump is part of a development project

That information helps us recommend the right grinding depth, equipment, cleanup scope, and method before work begins.

Call (425) 369-8733 or request a free stump-grinding estimate.

Mercer Island Stump Removal FAQs

How much does stump grinding cost on Mercer Island?

Stump grinding on Mercer Island typically follows current MTS regional ranges of about $150 to $250 for stumps under 12 inches, $250 to $450 for 12-24 inches, $400 to $700 for 24-36 inches, and $600 to $1,200 or more for very large stumps.

How deep does stump grinding go?

Standard stump grinding usually reaches about 6 to 12 inches below grade. The required depth can change when the area will become a planting bed, patio, driveway, retaining feature, or construction footprint, so tell us what you plan to do with the site before grinding.

Is stump grinding included with tree removal?

No, stump grinding is usually quoted separately from tree removal unless both services appear in the written estimate. If you want the stump handled after removal, include it when requesting the original quote so equipment access, depth, cleanup, and scheduling can be planned together.

Can a tree grow back after stump grinding?

Most trees do not regrow from the original crown after proper stump grinding, but some species can continue producing shoots from surviving lateral roots. Root suckering does not mean the original stump was left intact and may require follow-up management depending on the species.

Do you haul away the stump grindings?

Haul-away can be included when it is part of the written scope, but it should not be assumed. Grindings can sometimes remain on site or be reused as surface mulch. If you want chips removed, topsoil added, or the area restored for lawn, include that in the estimate.

Can you grind a stump near underground utilities?

Yes, when the utility-locate process and site conditions allow the work to be performed safely. MTS coordinates 811 locating before grinding, but privately owned irrigation, lighting, septic, electrical, or other underground systems may require separate identification by the property owner or a private locator.

Do you offer same-day stump grinding on Mercer Island?

Same-day or next-day stump grinding may be available on Mercer Island when scheduling, utility locating, access, stump size, and equipment requirements allow. Call (425) 369-8733 for current availability rather than assuming a specific response time.