FAAC Welding & Fabrication Nationwide

FAAC Welding & Fabrication: The San Fernando Owner’s Guide

Most FAAC welding and fabrication work in San Fernando comes down to two jobs: re-welding a hinge or bracket that cracked under load, or fabricating a mounting plate when a new FAAC operator doesn’t line up with an older gate’s existing holes. Our installed price for brackets, hinge repairs, and custom mounting plates typically runs between $180 and $520, depending on whether we’re reinforcing steel on site or cutting and drilling a new plate in the shop. If the hinge snapped and the gate is hanging, we can usually get a welder to your San Fernando driveway the same day. The part itself, where a standard FAAC bracket is still available, adds $40 to $140 on top of the labor. The symptom picture that lands customers here usually starts with a gate that suddenly sags an inch on one side, a popping sound when the operator cycles, or a motor that grinds because the arm bracket shifted out of alignment and the piston is now fighting the geometry.

Call (747) 260-0589

Which FAAC Models This Applies To

This work spans the swing-gate line that shows up on most San Fernando drives: the 390, 391, 400, 412, 415, 750, 770, and the older 844 and S418 series. The welding points differ by model. A 400 or 412 typically needs fabrication work on the rear mounting bracket when the original post ears were torched off or rusted through. The 750 and 770 use a long-stroke piston; when a steel gate was framed without a proper operator post, we frequently fabricate a two-piece saddle plate that bolts onto the lower rail and gives the piston a flat, reinforced surface to push against, rather than depending on the original mounting ears alone.

Identifying the right FAAC part before any welding starts means reading the nameplate on the piston body, not guessing from the control board or the remotes. The model number is stamped into an aluminum tag on the operator housing; the board inside can be a 455D while the piston is a 415, and that mismatch matters when we’re aligning holes for a new bracket. When OEM FAAC brackets are still in the production catalog, we order them; when the part is discontinued on a 15-year-old 844, we fabricate from 1/4-inch steel plate and weld it to match the original bolt pattern exactly. Aftermarket equivalents exist for the common 390/391 rear brackets, and we have installed enough of both to say this plainly: the aftermarket plate is dimensionally fine, but the zinc plating is thinner, and in San Fernando’s morning fog against steel gate frames, the OEM bracket ages noticeably better.

Signs Your FAAC Welding & Fabrication Is Failing

• The gate sags a half-inch to two inches on the latch side, and the sag gets worse over a few weeks. This is usually a hinge weld that has started to tear away from the gate frame or the post plate. The operator keeps opening the gate, but the load path has shifted.
• A popping or snapping sound when the FAAC piston starts its travel. The mounting bracket is flexing under torque. The piston pushes hard on the first few inches of travel; a cracked weld at the bracket will open and close audibly with every cycle.
• The motor runs but the gate shudders, stalls, or reverses mid-cycle. When the rear bracket is loose or cracked, the operator is now pulling against a moving mount instead of a fixed one. The board sees the extra amp draw as an obstacle and reverses.
• Visible rust staining running down from a hinge or bracket weld. Water has gotten into the weld seam and is working its way through. In San Fernando, the evening marine layer is enough to keep that seam wet for hours every night, and the rust accelerates from the inside out.
• The FAAC piston body has started to twist slightly in its mount. This is a clearance problem: the original bracket wasn’t positioned for this operator’s stroke length. The piston is binding at the end of travel, and the mounting ear is now acting like a pry bar on the weld.

Before

After

Replacement Cost & What’s Included

In San Fernando, a hinge re-weld on a swing gate runs $180 to $260 per hinge when we can work in place. Fabricating a new rear mounting bracket for a FAAC 390, 400, or 412 typically lands between $290 and $420, including the steel, cutting, drilling, welding, and paint. A custom saddle plate for a 750/770 on a steel gate is $380 to $520. When the OEM FAAC bracket is still available from the distributor, the part adds $40 to $140 depending on the model, and we quote the part price as a separate line item so you see exactly what goes to FAAC and what goes to labor. Every figure is written down and handed to you before the welder strikes an arc; that’s Clause 1 of the Haven Standard, and it applies to this work exactly as it applies to a motor swap. The work carries our 365-Day Done Right Promise: if the weld cracks or the fabricated plate shifts within a year, we come back and make it right at no charge.

Welding, Fabrication, and FAAC Parts You Can’t Get Anywhere Else

Most gate companies in San Fernando will tell you to replace the operator when a bracket fails. We don’t. We have a welder in the truck or scheduled same-day for most San Fernando calls, and we stock the common FAAC rear brackets and mounting plates for the 390, 400, and 412 series on the shelf. For the older 750/770 and discontinued 844 series, we cut and fabricate in the shop and schedule installation within two to four days. We also keep parts on hand for the other operators on your property: LiftMaster, Mighty Mule, and Ghost Controls all share failure patterns with FAAC, and we’d rather sell you the right bracket for the motor you have than sell you a new motor you don’t need.

DIY or Call Us?

You can safely check the bracket bolts yourself: put a wrench on the mounting hardware and see if anything turns by hand. If the bolts are tight and the bracket still flexes when the gate cycles, that’s a cracked weld, not a loose nut. At that point, stop. Welding on a gate that’s under tension is how fingers get crushed and overhead power feed lines get struck; the gate frame is carrying hundreds of pounds, and a weld that lets go while you’re under it is a serious injury. We also see DIY welding jobs where a homeowner with a flux-core welder laid a bead on a hairline crack without prepping the joint; six months later, the crack walks right through the new bead because the original stress point never moved. We’d rather you spend the money once. Call (747) 260-0589 if the hinge is cracked, the bracket is shifting, or the piston is grinding against a plate that’s no longer square.

Frequently Asked Questions