Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Fast, Reliable Gate Installation Across Lake Forest Park
Gate installation in Lake Forest Park runs from about $2,400 for a simple single swing gate to $14,000+ for a custom ornamental double gate with automation. Most projects land between $4,500 and $8,500. The job usually takes one to three days on site, depending on footing depth, grade, and whether we’re matching an existing fence line. Call (877) 610-2993 and Hal Gatewood will come out, walk the property with you, and hand you a written price before any work starts.
Lake Forest Park isn’t like the flat suburbs south of Seattle. The lots slope, the trees are huge, and the ground moves. If you’ve lived here long, you’ve seen what Douglas fir roots do to concrete. We plan for that from day one, not after the gate stops latching in October.
Why Gatewood Fence & Gate Is Lake Forest Park’s Preferred Gate Installation Company
We’ve been at this since 2001, and Hal Gatewood’s name is on the shop, on every invoice, and on the 90-Day Done Right Promise we stamp in writing on every job. If it’s not done right, one call brings him back. No runaround. No fine print. That matters in a town like Lake Forest Park, where you’ll probably see us again at the hardware store or the farmers market, and you want the person who installed your gate to be the same one who answers the phone when you call.
We answer the phone with a live person, 24 hours a day. Not a voicemail. Not a call center three states away. When a gate stops working on a Friday evening and your car is stuck in the driveway, you get a human on the line who knows gates, not a menu tree.
Lake Forest Park customers deal with one owner-operated crew, not a rotating cast of subcontracted installers. We show up in a truck with our name on it, in uniforms, background-checked. We’ve installed everything from simple cedar pedestrian gates off Ballinger Way to heavy steel driveway gates on the sloped lots above the lake. We know the soil, the roots, the moisture, and the way a gate settles here.
Our Gate Installation Services in Lake Forest Park
Driveway Gate Installation in Lake Forest Park
Most Lake Forest Park homes sit on private driveways cut through mature trees. Driveway gates here need deeper footings than a flat-lot install because roots from Douglas firs and big-leaf maples push concrete out of level over time. We size the footing below the root zone, use pressure-treated posts where they make sense, or weld steel post sleeves where the gate is heavy. A standard single driveway swing gate with a basic operator starts around $3,800 in Lake Forest Park. A double swing gate with a LiftMaster operator and keypad runs $6,500 to $11,000 depending on gate width, material, and grade.

Pedestrian Gate Installation in Lake Forest Park
Pedestrian gates on the 98155 side of town often match original 1950s and 1960s post-and-rail fencing. That old cedar rots right at the base where moisture sits against the post. When we replace a pedestrian gate, we don’t just hang a new gate on old posts. We pull the post, check the rot, and set a new one in concrete below the root zone. A simple wooden pedestrian gate with new posts runs $900 to $2,200 in Lake Forest Park, including hardware that won’t rust out in two seasons.

Sliding Gate Installation in Lake Forest Park
Sliding gates work well on narrow or sloping driveways where a swing gate would drag or need a huge arc. But Lake Forest Park has a specific problem: fir needles, cones, and maple leaves pack into the track every autumn. We install raised track systems and debris sheds where possible, and we choose operators with enough torque to push through wet leaf litter rather than stall out. A single sliding driveway gate with operator runs $5,500 to $12,000 in Lake Forest Park, depending on gate length and whether we need to regrade the track bed.

Swing Gate Installation in Lake Forest Park
Swing gates are common on Lake Forest Park lots with wider driveway aprons, especially off 35th Ave NE and along the quieter streets east of Bothell Way. The challenge here is grade and root heave. On sloped driveways, a swing gate wants to drift downhill. We set hinge posts in oversized footings, use through-bolted hinge hardware rather than surface screws, and set operators with a soft-close cycle so the gate doesn’t slam on the downhill swing. A single swing gate with operator starts around $4,000. A custom double swing gate in steel or ornamental aluminum runs $7,500 to $14,000.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Lake Forest Park
We’re certified to work on nine major gate brands, and in Lake Forest Park we regularly install and service LiftMaster, Linear, and Ghost Controls operators. When your opener fails, we don’t tell you to replace it unless it’s truly dead. Hal fixes what other companies want to swap, and we stock common parts locally so turnaround is fast for Lake Forest Park customers. If your existing operator is a Viking or DoorKing, we service those too, but LiftMaster and Linear are the ones we see most often on the larger custom gates around the lake bluff.
Common Gate Installation Problems We See in Lake Forest Park Homes
- Root heave from mature Douglas firs and cedars. Roots push post footings out of plumb within a few years on the steeper, tree-heavy lots that define Lake Forest Park. That’s why we core-drill below the root zone on every post we set and use oversized footings as a standard spec, not an upgrade.
- Fall debris jams in slide tracks and rack and pinion channels. Dense canopy traps moisture and dumps fir needles, cones, and maple leaves into gate hardware all autumn. We see operator failures spike in late October and November. We recommend raised tracks and seasonal track clearing for slide gates on heavily treed lots.
- Gravity-assisted drift on sloped driveways near the shoreline bluff. Gated lots that pitch downhill toward the lake develop a drift issue where gates stop latching by fall. The posts settle and the gate leans enough to miss the latch. Flatland gate companies often replace the latch. We fix the post, the hinge geometry, and the operator’s close position.
- Rot at the base of original 1950s-1970s wooden posts. Most of Lake Forest Park’s housing stock predates 1980, and the original cedar posts are often gone below grade. When we hang a new gate on an old post, we first expose the base to check for rot. If it’s soft, we replace it. Hanging a $4,000 gate on a rotten post is something we won’t do.
Pricing for Gate Installation in Lake Forest Park, WA
Here’s what gate installation actually costs in the Lake Forest Park market, based on the work we do regularly here:
- Pedestrian gate, wood, with new posts: $900-$2,200
- Single driveway swing gate, no operator: $2,400-$4,500
- Single driveway swing gate with operator: $3,800-$6,500
- Double driveway swing gate with operator and keypad: $6,500-$14,000
- Sliding driveway gate with operator: $5,500-$12,000
- Custom ornamental steel gate, double, with automation: $9,000-$18,000+
Your price is quoted and agreed before any work starts. What affects the number: gate width and weight, whether we’re automating an existing gate or building new, post condition, grade, root presence, and whether we’re running power to the operator location. We don’t change the price at the door. We offer $40 off any repair over $200, a free second opinion on any written estimate, and no trip charge inside the county. Seniors and veterans get a permanent 10% discount.
We Also Serve Cities Near Lake Forest Park
If you’re just outside the Lake Forest Park line, we cover Shoreline, Kenmore, Mountlake Terrace, and Alderwood Manor as well. Our Gate Installation team runs the same routes, same pricing, same guarantee. And if you’re in Lake Forest Park itself, you’re squarely in our regular service area, no trip charge, no exceptions.
Serving Lake Forest Park, WA - Our Local Coverage Area
We’re based in the Lake Forest Park area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Gate Installation in Lake Forest Park
Roots from mature Douglas firs and western red cedars push against shallow concrete footings and shift them within a few years. Most installers pour a 30-inch footing, which is fine on flat ground with no trees. In Lake Forest Park, that’s a guarantee the gate will drift. We core-drill below the root zone, typically 42 to 48 inches deep on the tree-heavy lots in 98155, and we oversize the footing diameter so roots can’t lever it sideways. Call (877) 610-2993 if your gate has already drifted, and we’ll tell you exactly what’s moving before we quote anything.
You can, but the grade determines the design. On a slope steeper than about 8%, a sliding gate needs a stepped track or a cantilever setup, which adds cost. On the sloped lots above the lake bluff, we often recommend a swing gate with an uphill hinge-side post so the gate can’t drift downhill into the latch. If your driveway drops more than a foot over the gate width, a swing gate is usually the better call. We’ll tell you honestly which works for your grade, and we’ll quote both so you can decide with numbers in hand.
No operator handles a packed track well, and forcing one through wet leaf litter burns out motors and strips rack gears. What we do instead: install a raised track, add debris sheds over the track channel, and spec an operator with higher starting torque for the autumn months. In Lake Forest Park, we recommend a fall service visit to clear the track and check the operator’s force settings. That’s a lot cheaper than a burned-out motor in November. Call (877) 610-2993 to schedule a track clearing before the leaves start dropping.
42 to 48 inches on lots with mature trees. That’s deeper than the standard 30-inch footing most installers use, and it’s the difference between a gate that stays plumb and one that scrapes the driveway in five years. On the shoreline bluff lots with steep grade and heavy root pressure, we sometimes go deeper and add a concrete collar at the base. The footing is the cheapest part of the install, and it’s the part the roots attack first.
Depends on what’s left of the posts and the gate frame. If the gate panels are solid and the rot is at the post base, we can set new posts and rehang the original gate, which usually saves you $1,500 to $3,000 versus a full replacement. If the gate’s hinge-side boards are spongy or the frame has pulled apart at the joints, replacement makes more sense, and we’ll tell you that straight. In Lake Forest Park, where original post-and-rail fencing from the 1950s through the 1970s is everywhere, we see this call every week. We won’t talk you into a replacement you don’t need.
The Lake Forest Park Gate Problem Most Companies Never Mention
Here’s the thing that makes gate installation in Lake Forest Park different from anywhere else in the metro area. This is one of the most heavily forested incorporated cities in the Puget Sound region. Mature Douglas firs, western red cedars, and big-leaf maples sit on nearly every lot. Their roots don’t care about your property line or your gate footing. They grow outward and downward, and they heave concrete out of plumb over years. A gate that opens perfectly in May can scrape the driveway in December because the post shifted half an inch while nobody was watching. Flatland gate companies never see this because flatland suburbs don’t have 80-foot trees in every yard. We see it every week in Lake Forest Park, and we plan for it before the first bag of concrete gets mixed.
On a sloped lot near the Lake Washington shoreline bluff, we installed a custom double swing gate with a LiftMaster operator and keypad entry after the original 1960s wooden gate had settled downhill so badly it no longer latched by fall. Our tech found the two hinge posts leaning out of plumb from decades of root pressure, so we core-drilled new post footings below the root zone, set pressure-treated posts in high-strength concrete, and squared the frames before hanging the new gates. Then we set the operator and safety photocells so the gates drift to a full close on the grade without slamming. That gate opens smoothly year-round now. The problem wasn’t the latch. It was the posts, and the roots underneath them.
If you want a gate in Lake Forest Park that opens and closes cleanly ten years from now, call (877) 610-2993. We’ll come out, look at your trees, your slope, and your soil, and give you a straight written price before any work starts. Hal Gatewood’s name is on the shop and on every invoice. That’s the oldest accountability there is.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Lake Forest Park since 2001.





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