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 City of Sammamish
Gate installation in City of Sammamish usually costs between $4,500 and $14,000 for a full driveway gate with automation, and the work typically takes one to three days once materials are on site. That number covers a new post footing, the gate frame, an operator, and the electrical run that powers it. If you’re calling from the plateau, you’re dealing with a specific set of conditions: HOA design rules, freeze-thaw soil movement, and a lot of mid-2000s hardware that was never quite right to begin with. We’ve been working these neighborhoods long enough to know what holds up and what doesn’t. Call (877) 610-2993 and Hal will walk you through what your property actually needs, not what a catalog says it needs.
Why Gatewood Fence & Gate Is City of Sammamish’s Preferred Gate Installation Company
Hal Gatewood started this shop in 2001, and he still answers the phone himself. That’s not a slogan. When you call about a gate in City of Sammamish, you get the guy whose name is on the invoice, not a phone tree. Every job we do on the plateau carries the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Hal back. No runaround, no “that’s normal wear.”
The crews running gate installation in City of Sammamish know the local HOA landscape. They know which developments require powder-coated ornamental steel, which ones demand specific setback distances from the property line, and which ones will reject a gate that doesn’t match the neighborhood’s original mid-2000s spec. That local knowledge means fewer redos and faster approvals. We’re licensed, insured, and bonded, and our published address means you can always find us if you need to.
Reviews from Sammamish homeowners tell the same story: we show up in the window we promised, we quote a price before work starts, and the price doesn’t change at the door. If you’ve been burned by an outfit that quoted one number on the phone and invoiced another, you’ll understand why that matters.
Our Gate Installation Services in City of Sammamish
Driveway Gate Installation
A driveway gate in City of Sammamish is more than a barrier; it’s the first thing an HOA architectural committee sees. Most Sammamish subdivisions were built with a uniform look, and your gate needs to blend with that. We handle the full job: post footings dug below frost depth, powder-coated steel or iron frames, operators sized for the gate’s weight and cycle frequency, and the electrical run to power it. If your property sits on one of the plateau’s steeper lots, we account for grade changes that a flat-earth installer would miss. In communities along East Lake Sammamish Parkway or up in Klahanie, driveway gates tend to see more daily cycles than rural properties, so we spec operators accordingly.

Pedestrian Gate Installation
Pedestrian gates in City of Sammamish serve a different purpose than driveway gates. They’re for delivery drivers, trail access, and keeping deer out of vegetable gardens, which is a real problem up on the plateau. We install freestanding walk gates with keypad locks or magnetic latches, and we match the style to whatever the HOA approved on the driveway side. A typical pedestrian gate install runs from $1,800 to $4,200 depending on whether you need a new post set or can tie into the existing fence line.

Sliding Gate Installation
Sliding gates are common in City of Sammamish because so many properties have short, steep driveways where a swing gate would arc into the slope or block the sidewalk. A slide gate rides on a track and needs a solid footing the entire length of travel, plus a proper rack and pinion drive. The original builders on the plateau often poured undersized footings for these, because they planned for a manual gate and automation came later. We fix that. New slide gate installs in Sammamish run $6,000 to $16,000 fully automated, depending on gate length and whether we’re trenching new electrical.

Swing Gate Installation
Swing gates are the classic look for Sammamish’s larger estate-style homes, especially in neighborhoods off 228th Avenue SE and around Pine Lake. The hinge posts carry the entire load, which means the footing has to be deep and wide enough to resist torque, not just weight. Post heave from plateau freeze-thaw cycles is the number one reason swing gates start dragging or failing to close. We pour footings below frost depth and use posts sized for the gate’s full weight plus wind load. A new automated swing gate in City of Sammamish typically runs $5,500 to $13,000.

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 City of Sammamish
We service and install operators from all nine major brands, but around Sammamish, we see mostly LiftMaster, Viking, and DoorKing units, because those are what the plateau’s tract developers spec’d in the mid-2000s. We also work on Linear and Ghost Controls hardware when homeowners want a quieter residential unit or a retrofit. Because the whole plateau is running nearly the same hardware generation, we keep the control boards, limit-switch kits, and worm-gear assemblies for those specific models on the truck. When a 2006-era Viking operator fails on a Monday morning, we don’t have to order parts and come back next week. We fix it that day.
Common Gate Installation Problems We See in City of Sammamish Homes
- Builder-grade operators hitting end of life. The LiftMaster and Viking units installed during the 1998-2015 construction wave are now 15 to 20 years old. Worm gears are worn, control boards are fried, and capacitors are swelling. Nearly every HOA entrance gate on the plateau is due for replacement in the same window.
- Manual gates that got automated without the right structure. Many Sammamish homes started with a manual swing gate, then added an operator later. The original hinge posts were never designed for motor torque, so they heave and twist in freeze-thaw cycles. The gate starts sagging, the operator strains, and eventually something fails.
- Missing power and conduit runs. A surprising number of Sammamish gates never had electrical conduit run to them, because the developer didn’t plan for automation. Automating those gates today means trenching a new line across the driveway, adding a loop detector or photocells, and sometimes pouring a new footing for the operator post. We do this regularly and can usually trench without tearing up more than a narrow strip.
- Sagging gate panels blamed on the wrong part. A gate sags in the hinge post, not in the middle. Fix the panel without the post and you’ll fix it twice. We see this constantly in Sammamish: someone welds a brace across the panel, paints it, and calls it done. Six months later the gate is dragging again because the post moved.
Pricing for Gate Installation in City of Sammamish, WA
Here’s what you can expect to pay for gate installation in City of Sammamish, quoted before any work starts:
- Pedestrian gate: $1,800 - $4,200
- Single driveway swing gate (manual): $3,500 - $6,000
- Single driveway swing gate (automated): $5,500 - $9,000
- Sliding driveway gate (automated): $6,000 - $16,000
- Double gate or estate gate with automation: $9,000 - $18,000
- Trenching and electrical run (if missing): $1,200 - $3,500
These ranges include the structural work, the gate itself, and the operator. What moves you within a range is gate size, post condition, whether we’re matching an HOA spec, and whether power already runs to the gate location. The price we quote is the price you pay. It’s agreed before we start, and it doesn’t change at the door. Standing offers apply in City of Sammamish: $40 off any repair over $200, a free second opinion on any written estimate, and a permanent 10% discount for seniors and veterans. Call (877) 610-2993 for an exact quote. Estimates are free.
We Also Serve Cities Near City of Sammamish
Our Gate Installation team covers the whole corridor: Sammamish itself, Klahanie, Issaquah, and Union Hill-Novelty Hill. If you’re in one of those communities and need a quote, the same crew and the same 90-Day Done Right Promise apply. This page focuses on City of Sammamish, but the truck is already on the plateau, so nearby calls get the same response.
Serving City of Sammamish, WA - Our Local Coverage Area
We’re based in the City of Sammamish 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 City of Sammamish
Because the entire plateau was built in one rapid wave from the late 1990s through the early 2010s, and the gate operators installed back then are all hitting the 15-to-20-year mark simultaneously. The same handful of tract developers installed the same LiftMaster and Viking models across dozens of communities, so you’re not imagining it: your neighbor’s gate is failing for the same reason yours is. A technician who stocks mid-2000s control boards and limit-switch kits can service a dozen Sammamish HOAs in a single day without restocking. If your HOA needs a batch replacement quote, call (877) 610-2993.
Yes, and we do it often, but the original hinge posts usually need to be replaced or reinforced first. The posts set back when the gate was manual weren’t designed to handle operator torque. If we skip that step, the gate will sag and the operator will burn out fighting misalignment. We also check whether the builder ran conduit for power; in many Sammamish homes, they didn’t. That means trenching a new electrical line. The full automation retrofit, including any needed post work and electrical, typically runs $4,500 to $9,000. Call us for a written quote.
You’re seeing the plateau effect. Sammamish sits at 400 to 500 feet elevation, which means more freeze-thaw cycles than Redmond or Bellevue get down at lake level. Hydraulic operator fluid thickens in cold weather and stalls the motor, and gate-post heave from frost can knock a gate out of alignment just enough to trip the safety sensors. In some cases the operator is fine and only needs seasonal maintenance or a fluid change; in others, the underlying post movement is the real issue. We diagnose the cause, not just the symptom. Call (877) 610-2993 and we’ll come look.
Yes, without exception. Any new gate operator installed in City of Sammamish must meet UL 325 standards for entrapment protection, which means photoelectric sensors, contact edges, or a combination of both. This isn’t optional; it’s the federal safety standard, and it protects kids, pets, and delivery drivers. A gate without working entrapment protection can crush or pin someone. We install every new operator to UL 325 compliance, and we test the reversing mechanism before we leave. If your existing gate lacks entrapment protection and you’re installing a new operator, this is part of the quote, not an add-on surprise.
No, and anyone who tells you otherwise is selling you a repeat visit. A gate sags in the hinge post, not in the middle. If the panel is dragging or the latch won’t line up, the post has moved, usually from freeze-thaw heave or because an operator was added to a gate that was never structurally designed for it. We fix the post, set a proper footing below frost depth, and then the panel lines up. Fix the panel without the post and you’ll fix it twice. Call (877) 610-2993 for an honest assessment. The free second opinion offer means we’ll look at any written estimate you already have and tell you straight what’s needed and what isn’t.
Why the Mid-2000s Gate Replacement Cycle Matters Right Now in City of Sammamish
Here’s something no generic gate installation page will tell you. Sammamish’s gate infrastructure was installed by the same handful of tract developers during the mid-2000s construction boom. That means the entire plateau is running nearly identical LiftMaster and Viking operator models, and they’re all hitting the 15-to-20-year replacement cycle at roughly the same time. Your HOA isn’t the only one with a failing entrance gate right now; the community two streets over is probably dealing with the same control board failure or the same worn worm gear. We know, because we’re the ones replacing them.
This has a practical consequence for homeowners: parts availability is not a problem, but installer availability might be. When a batch of mid-2000s operators decides to die in the same season, shops that don’t stock those specific boards and limit switches get backed up for weeks. We stock them, because we know this plateau and we know what’s out there. If your gate is showing signs of trouble (slow operation, grinding, intermittent stalling), don’t wait until it’s completely dead and you’re competing with every other HOA on the plateau for a repair slot. Call (877) 610-2993 and get on the schedule before the failure wave crests.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving City of Sammamish and the surrounding plateau since 2001.





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