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.
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AfterFast, Reliable Gate Installation Across Cohasset
Gate installation in Cohasset, MA typically runs $4,800 to $14,300 for a complete driveway gate with automation, and a pedestrian gate usually falls between $1,900 and $4,100. Most Cohasset projects take two to four weeks from measure to finished installation, depending on whether the gate is custom-built or a modified stock panel. Salt air is the big variable here, not style preference. We schedule Cohasset jobs around the weather windows that matter here: after the ground thaws, before summer harbor traffic thickens, and ahead of the first nor’easter. Call (877) 610-2993 and a live person answers, day or night.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Cohasset with gate repair and installation since 2001.
Why Gatewood Fence & Gate Is Cohasset’s Preferred Gate Installation Company
Most gate companies treat Cohasset as just another stop on a South Shore route. We treat every job here as a marine-environment installation, because that’s what it is. Cohasset’s 02025 ZIP covers just 10.1 square miles with Massachusetts Bay on its entire eastern edge. Salt fog doesn’t stop at Atlantic Avenue or the harbor. It reaches Jerusalem Road, Beechwood, the village center, every lot in town. Hardware that survives 15 years inland in Hingham fails here in five to seven if it wasn’t specified for exposure. We’ve been correcting other installers’ underspecified work with our Gate Repair - Cohasset services for years, and we’ve learned exactly what actually lasts.
Hal Gatewood’s name is on the shop and on every invoice. No dispatch queue, no call center three states away. You call, a person answers, and the crew that shows up is the crew you’ll see again at the transfer station or the hardware store. That’s the oldest accountability there is, and it still works in a town this size.
Every Cohasset installation carries the 90-Day Done Right Promise in writing. If something isn’t right, one call brings us back. No runaround, no fine print.
Our Gate Installation Services in Cohasset
We build and install gates that match Cohasset’s housing stock: formal, often historic, and expected to last. Here’s what we do most across town.
Driveway Gate
Most Cohasset driveway gates are custom jobs on estate properties along the harbor and Jerusalem Road corridor. These aren’t off-the-shelf box panels. We build to the driveway width and the house’s architecture: ornamental steel for older Colonials and Victorians, clean custom cedar or mahogany for the larger contemporary estates. We handle the full run: posts, panels, operator, power, safety edges, and our Gate Access Control in Cohasset with keypad or remote entry.
Pedestrian Gate
Smaller gates fail fastest in Cohasset because people assume they need less hardware. The opposite is true on the coast. We set every pedestrian gate on stainless hinges and a post bed below the 48-inch frost line. A sagging gate at the side of a house near the harbor isn’t a panel problem; it’s almost always a base-of-post corrosion or heave problem, and that’s where we start.
Sliding Gate
These work well on Cohasset properties where driveway slope or limited swing clearance rules out a swing gate. The catch on the coast is the rack-and-pinion teeth: freeze-thaw cycles after nor’easters heave post footings, which throws the rack out of alignment and strips teeth. We pour deeper and use a thicker mounting channel, which is the difference between a slide gate that runs smooth for a decade and one that eats operators every two winters.
Swing Gate
Swing gates are the classic Cohasset choice for formal driveways. The failure we see most often is painted steel hinges that seize within three seasons from salt air. We set each hinge post in concrete below frost depth and mount panels with 316 stainless hinges. The gate still looks exactly like the client’s house, but the hardware is specified for what Cohasset weather actually does.
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 Cohasset
We install and service FAAC, BFT, Linear, and Viking operators, among others. For Cohasset customers we keep common parts for these brands stocked locally, so a board replacement or hinge swap doesn’t mean a two-week wait while something ships from a warehouse in Ohio. Our Gate Installation team works with all nine brands we certify on: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule.
Common Gate Installation Problems We See in Cohasset Homes
- Hinge posts rusted through at the base. Salt-laden soil splash eats galvanized steel posts at ground level within five to seven years. The gate drops and binds long before panel rust appears, so homeowners don’t see the cause until the gate won’t close. Marine-grade powder coat and stainless sleeves fix what paint never will.
- Operator boards corroded while the housing looks new. Salt air infiltrates motor housings and circuit boards through the cooling vents. A “dead” gate on Jerusalem Road is often a board failure, not a motor failure. This page exists, partly, to keep you from paying for a motor replacement when the board was the problem.
- Post footings heaving after nor’easters. Direct Bay exposure means winds here stress hinges and warp frames. Then freeze-thaw heaves any footing poured shallow. We pour to 48 inches, below the frost line, and we’ve never had a Cohasset post heave on a job we set.
- Double driveway gates sagging at the latch. The panels look straight, but the gate still binds. That’s hinge post movement, not a panel problem. Fix the panel without the post and you’ll fix it twice. We align the post, re-hang, and the latch meets true.
Pricing for Gate Installation in Cohasset, MA
A standard single swing driveway gate in Cohasset runs $4,800 to $8,200 installed with a manual latch. Add automation and you’re at $7,500 to $12,000, depending on operator brand and power run length. A custom double swing gate on an estate property along Atlantic Avenue or Jerusalem Road runs $9,000 to $14,300 with automation, stainless hardware, and marine-grade coatings. Slide gates land in the same range as double swings: $8,500 to $13,500. Pedestrian gates run $1,900 to $4,100, with mahogany and custom steel at the top end. The price is quoted and agreed before any work starts, in writing. That’s not a selling point. That’s just how we work.
Call (877) 610-2993 for a free measure and a written quote. Estimates are free, and we’ll tell you what marine-grade modifications actually cost before we touch anything.
We Also Serve Cities Near Cohasset
We work daily in Cohasset and the surrounding South Shore towns. If you’re in North Scituate, Scituate, Hingham, or Hull, the same crew and the same standards apply: stainless fasteners, deep post footings, and a live person answering the phone at (877) 610-2993. Salt air doesn’t stop at the town line, and neither do we.
Serving Cohasset, MA - Our Local Coverage Area
We’re based in the Cohasset 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 Cohasset
Yes. Cohasset’s entire 02025 ZIP sits within salt fog reach, not just the harbor-front homes. A quarter mile from the water, airborne salt still settles on exposed steel and gets into operator housings. Standard galvanized hardware will rust through at the base in five to seven years. Marine-grade means 316 stainless hinges, sealed control boards, and a powder coat rated for coastal exposure. It adds roughly $1,200 to $2,100 to a slide gate project and buys you twice the service life. Call (877) 610-2993 and we’ll walk you through exactly what that spec includes.
48 inches, minimum. Massachusetts code sets the frost line at 48 inches, and Cohasset’s direct Bay exposure means the ground heaves hard during freeze-thaw cycles after nor’easters. Anything shallower will move, throw the gate out of plumb, and eventually strip the hinge alignment. We pour to 48 inches every time, with a bell-shaped footing on larger swing gates. It’s more concrete and more labor, and it’s the only reason a swing gate here stays true past five winters.
Open the housing and look for white or green corrosion on the circuit board, tarnished terminals, or a faint burnt smell near the transformer. If the motor hums but the gate doesn’t move, the board is likely the failure point. On Cohasset coastal properties, we find more board failures than motor failures because salt air gets through vents that exterior rust doesn’t touch. If you’ve had the operator less than six years and it’s dead, the board is the likely culprit. Call (877) 610-2993 and we’ll diagnose it before quoting a replacement.
Because the hinge post is moving, not the panel. When a double gate drops at the center, people look at the panels and assume the gate was built wrong. In Cohasset, it’s almost always the base of the hinge post rusting or the footing heaving. The panel is fine. The post is failing. We re-set the post below frost line, handle any needed Gate Parts & Welding in Cohasset, mount new stainless hinges, and the gate closes square. Fixing the panel while leaving the post is how you fix it twice.
For Cohasset, we lean on LiftMaster for sealed control boards and FAAC for large, heavy swing gates where slow-start hydraulic operation matters. Viking and Linear both make solid slide operators, but the spec matters more than the brand: sealed board housing, stainless internal fasteners, and a properly drained post mount. We’ve pulled two-year-old operators off harbor-front properties that weren’t sealed, and we’ve seen properly spec’d LiftMasters run a decade on Atlantic Avenue. Call (877) 610-2993 with your gate type and we’ll give you a straight answer on what to buy before you spend.
What Salt Air Actually Does to a Cohasset Gate
Here’s what we’ve learned installing gates across Cohasset for two decades. On Atlantic Avenue, we installed a custom double swing gate at a harbor-facing estate where the previous owner’s black-painted steel hinges had seized within three seasons. We set each hinge post in concrete below the 48-inch frost line, then mounted the panels with 316 stainless hinges and a LiftMaster operator with a sealed control board. Two years later the gate still swings true and the opener cycles without board corrosion. That’s the standard for every job here, not an upgrade.
Cohasset sits directly on Massachusetts Bay with a working harbor and miles of exposed rocky coastline. The town’s small footprint means salt fog penetrates everywhere, not just waterfront lots. Iron hardware oxidizes fast. Hinges seize. Wood post bases rot. An operator that looks clean on the outside can have a corroded control board on the inside. Every gate on this peninsula should be treated as a marine job: stainless fasteners, sealed electronics, and coatings rated for salt exposure. Skip that on a formal Jerusalem Road estate gate and you’ll be calling us in five years to undo what the last crew did.
Nor’easters compound the problem. Direct Bay exposure means high winds straining hinges, warping wood frames, and knocking automated gates out of alignment. Then the freeze-thaw cycles start, and shallow footings heave. A gate that was fine in November is binding in February. That’s not the gate’s fault. That’s the original installation cutting corners that don’t work on the coast.
If you’re deciding between a galvanized steel post and a marine-grade option, the honest answer is: on Cohasset’s peninsula, galvanized is a temporary solution. The gate will look fine for a few years. Then the base rusts, the gate drops, and you pay for the job twice. We’d rather quote the right spec once and stand behind it with the 90-Day Done Right Promise.
Call (877) 610-2993 for a free estimate on gate installation in Cohasset. A live person answers, day or night. You’ll get a written price before any work starts, and Hal Gatewood’s name goes on the job.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Gate Installation in Cohasset with honest, coast-rated work since 2001.