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 Repair Across Mercer Island
Gate repair on Mercer Island usually falls into two buckets: the gate panel itself, or the operator, hinges, and posts that move it. Most jobs run $225 – $475 before parts, and the majority of repairs are done in one visit. If your gate is sagging, grinding, or refusing to open, call (903) 417-0793 and you’ll get a live person who can talk through what you’re seeing and book a technician with a trackable arrival time. This is what we do every day on Mercer Island, from the lakefront drives near East Mercer Way to the wooded lots off Island Crest Way.

Why Calder Gate Repair Is Mercer Island’s Preferred Gate Repair Company
Mercer Island homeowners call us because we show up when we say we will and the price we quote is the price on the invoice. Every technician is background-checked and arrives in uniform, dispatched with a live arrival time you can follow from your phone, not a four-hour window. Gate Repair is all we do, which means we carry parts for the operators Mercer Island residents actually have: LiftMaster, FAAC, Viking, Ghost Controls, DoorKing, Elite, and others. We’re part of the Relay Home Co. family, founded in 2009, and each location runs independently under The Relay Visibility Guarantee. That guarantee means written pricing before work starts, before-and-after photos, and a digital invoice you pay from a link. Every repair also falls under our 365-Day Done Right Promise: if the fix fails within a year, Calder returns at no charge. Mercer Island homeowners keep our number saved because the first visit usually ends the problem.
We know Mercer Island’s gates fail differently than gates in Seattle or Bellevue. The soils here hold water, the lots are often wooded, and freeze-thaw cycles work on post footings all winter. That local knowledge shapes how we diagnose. We don’t just tighten bolts and leave, we look at why the gate moved in the first place. That’s why a Mercer Island repair from us tends to stay fixed.
Wrought Iron Gate Repair in Mercer Island
Wrought iron gate repair in Mercer Island is often framed as a metal problem, but around here it’s usually a footing problem. The island’s deep, moisture-holding soils and freeze-thaw cycles, combined with wooded, high-water-table lots, make post-footing settling the leading cause of gate failure. A correct repair almost always requires addressing the footing, not just the gate panel. Typical wrought iron gate repair in Mercer Island runs $275 – $550, depending on how much the post has moved and whether the panel itself needs straightening or welding.
Hinge and Post Resets
When a wrought iron gate sags on Mercer Island, the hinge post has usually rotated or sunk. We excavate the old footing, pour a deeper, wider concrete base, and reset the post to plumb. Only then do we address the gate panel itself, because a gate hung on a moving post will sag again within months.
Sag Correction and Panel Straightening
Once the footing is solid, we correct the gate’s geometry. That can mean re-welding hinge barrels, straightening a bowed top rail, or adding a tension rod. For older wrought iron on Mercer Island, we also check for rust at the welds, since damp, shaded lots accelerate corrosion at the joints.
Metal Gate Repair in Mercer Island
Metal gate repair in Mercer Island covers everything from aluminum driveway gates to steel pedestrian gates and the posts that carry them. The repair typically involves diagnosing why the gate binds, scrapes, or won’t latch. On Mercer Island, that cause is frequently a settled post footing or a hinge that’s corroded after years of damp, tree-shaded conditions. Metal gate repair in Mercer Island typically runs $250 – $500 before parts, depending on the post condition and whether the panel needs cutting or welding.
Post Replacement and Setting
This is the most common metal gate repair we perform on Mercer Island. We remove the failed post, dig out the old footing, and set a new post in concrete sized for the island’s soil conditions. The goal is a post that won’t move next winter, not one that looks fine for six months.
Weld and Rust Repair
Mercer Island’s year-round dampness and heavy tree cover mean steel gates rust faster here than they do in drier parts of King County. We cut out rusted sections, weld in new material, and treat the repaired area so it doesn’t fail again at the same joint. If the gate is steel, we’ll also check the inside of the stiles for trapped water, the kind of hidden corrosion that only shows up after a weld cracks.

Trusted Brands We Service in Mercer Island
We’re factory-familiar with nine major gate opener brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. In Mercer Island, the most common openers we see are LiftMaster, Viking, and DoorKing on residential drives, with an occasional Ghost Controls unit on newer installations. Because we stock boards, limit switches, remotes, and safety edges for these brands locally, most Mercer Island repairs are completed in a single visit. You won’t wait a week for a part to ship from a distributor.
Common Gate Repair Problems We See in Mercer Island Homes
- Settled post footings: Mercer Island’s moist, freeze-thaw-prone soils cause gate posts to sink and rotate, which makes the gate sag and bind at the latch side. The fix requires resetting the post in a deeper footing, not just adjusting the hinges.
- Corroded electrical components: Year-round dampness and tree cover mean moisture gets into control boards, limit switches, and safety photocells. Symptoms include the operator humming but the gate not moving, or the gate reversing for no apparent reason.
- Loop detector and keypad failures: Sloped driveways on Mercer Island put extra strain on in-ground loop detectors, and water intrusion or ground movement causes them to fail. Keypads near the street also take on water and quit.
- Misaligned safety edges and photocells: When a post shifts even half an inch, the photocells fall out of alignment and the gate refuses to close. Mercer Island homeowners often think the operator is broken when it’s actually a beam misalignment or a pinched safety edge.
Pricing for Gate Repair in Mercer Island, WA
Most gate repairs in Mercer Island run $225 – $475 before parts, with the final number depending on what’s actually failed. Post resetting and concrete work runs $350 – $700. Control board replacement usually lands between $300 – $600 installed, depending on the opener brand. A new safety photocell pair is typically $120 – $200 installed. No gate repair on Mercer Island gets quoted without a written price before we start. You’ll know the number before a single bolt is turned, and the invoice won’t differ from that number. Call (903) 417-0793 for an exact quote on your gate, estimates are free. Every repair is backed by the 365-Day Done Right Promise: if it fails within a year, we return free.
We Also Serve Cities Near Mercer Island
Beyond Mercer Island, our crews cover Mercer Island neighbors across the water, including Bellevue, Seattle, Renton, and Kirkland. Dispatch and scheduling are coordinated from the brand’s Seattle office, and crews serve Mercer Island locally every weekday. Same booking process, same written-price guarantee, same live-person phone support.
Serving Mercer Island, WA - Our Local Coverage Area
We’re based in the Mercer Island 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 About Gate Repair in Mercer Island
Because the hinge post is the problem, not the panel. Mercer Island’s deep, moisture-holding soils and freeze-thaw cycles cause gate posts to settle and rotate over time. Re-aligning the panel or tightening hinges without resetting the post footing means the gate will sag again within a year. A proper repair means excavating the old footing and pouring a deeper, wider base in soil that drains. That’s the only fix that lasts on this island.
Yes, for repair work. Most Mercer Island gate repairs are completed the same day you call, including sag correction, opener repair, photocell replacement, and hinge work. Installation and major post replacement are scheduled, since concrete needs to cure and the work involves ground preparation. Call (903) 417-0793 and a live person will tell you what’s possible today.
We service nine major brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. In Mercer Island specifically, we most often repair LiftMaster, Viking, and DoorKing openers, though we stock parts for all of them. That means most opener repairs don’t wait on shipping.
That’s usually a mechanical failure, not an electrical one. The motor is spinning, but the gate isn’t responding, which points to a broken drive gear, a failed coupler, a stripped chain or belt, or a hinge binding badly enough to stall the gate. On Mercer Island, we also see corrosion on the drive mechanism from year-round dampness. The operator needs to be inspected before it burns out completely. Call (903) 417-0793 for a free estimate, we’ll tell you what’s actually wrong before any work starts.
Yes. Under UL 325, automated gates must have a properly functioning entrapment protection system, which includes safety photocells and a reversing mechanism tested on site. This isn’t optional equipment, it’s a legal and safety requirement. If your gate closes on an object without reversing, stop using it and call us. We test reversal force and beam alignment on every Mercer Island repair. Our 365-Day Done Right Promise means if a safety component fails within a year, we return at no charge.
Call Calder Gate Repair on Mercer Island
If your gate is sagging, stuck, or unsafe to operate, stop fighting it. Call Calder Gate Repair at (903) 417-0793 for a free estimate and honest pricing. A live person answers 24/7, we’ll book a technician with a trackable arrival time, and you’ll get a written price before any work begins. Mercer Island gates fail in specific ways, and we know exactly which footing, hinge, and opener problems to look for. That’s why the first visit usually ends the problem and why the repair carries the 365-Day Done Right Promise in writing.
Written by Nico Alvarez, Owner at Calder Gate Repair. Nico leads the Mercer Island gate repair team, with specialized experience in the island’s post-footing, moisture, and corrosion challenges.





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