Office door at the Tradition Square professional building dropping into the threshold every time it opens. School classroom door at St Lucie West K-8 with the top hinge knuckle wearing oval. Plaza tenant door with hinge screws walking out of the frame. We service and replace Stanley FBB199, McKinney TA2714, Hager BB1279, and full-mortise / weld-on commercial hinges across PSL.
Commercial door hinge service in Port St. Lucie - 5-knuckle ball-bearing hinges (Stanley FBB199, McKinney TA2714, Hager BB1279), mortar-set, weld-on, and full-mortise. Schools, offices, plazas, professional buildings, light industrial.
Most 3-hinge commercial doors swap in 45-90 minutes total. Pricing $180-380 per door including ANSI Grade 1 hardware. Heavy fire-rated doors (90-180 lbs) sometimes step up to 4 hinges or continuous geared instead.
Common bug: undersized hinges on heavy doors. We re-spec based on actual door weight + occupancy and step up the rating when warranted (BB versus FBB, 4.5-inch versus 5-inch knuckle).
A standard 3-hour commercial hollow-metal door rides on three Stanley FBB179 ball-bearing butt hinges in most installs, or FBB191 on heavier rated assemblies. When the top hinge starts to pull out of the frame or the bearings dry out, the door sags, the latch stops aligning with the strike, and the closer has to fight gravity on every cycle. We see this weekly on back-of-house doors at Treasure Coast Square and on the office suites in Tradition where doors get 100+ cycles a day for years without any service.
The fix is rarely just new hinges. The frame anchors may be loose, the hinge mortises may be wallowed out, or the door may be racked from years of slamming. We bring the Stanley + Hager replacement stock plus the welded-stud and McFeely's hardened anchor screws to re-secure a hollow-metal frame properly.
Quote on the phone, repair the same visit. Call (772) 284-5142.
Single Stanley FBB179 swap around $180. Full 3-hinge replacement with re-anchoring around $380 to $480 depending on frame condition.
FBB179, FBB191, Hager BB1279, and Bommer BB5000 ball-bearing butts in 4.5 and 5 inch sizes, prime-coat and 626 satin chrome finishes.
Commercial doors get commercial hinges. We do not put residential Grade 3 hardware on a high-cycle commercial door, even if you ask.
Stripped frame screws are the real failure mode. We bring hardened sex-bolt kits and through-frame anchors so the new hinge actually holds.
Full 3-hinge replacement on a 3-foot hollow-metal door is a 90-minute job. We do not need to come back for parts.
Insurance certificate, W9, and net-30 invoicing available for property management companies and facility teams.
General contractors will subcontract this and mark it up 80%. Handymen put residential hinges on commercial doors and you call them back in 6 months. We are the direct fix.
FBB179 and FBB191 in 4.5 inch and 5 inch, 626 and 630 finishes, on the van. No special-order delay.
We weld-tab or sex-bolt the frame anchor when the screws are stripped. New hinges into bad frames fail in months.
An over-tensioned LCN 4040 destroys new hinges fast. We re-adjust closer spring power, back-check, and latch speed before we leave.
Photos before and after, written work order, COI on file. Built for facility teams that need paper trails.
Three series cover 90 percent of PSL commercial work:
Stanley FBB199. Full-bearing (BB knuckle), 4.5-inch x 4.5-inch standard, ANSI Grade 1, 50,000-cycle rating, rated for doors up to 200 lbs. The default spec on most PSL office, retail, and light institutional doors built since 1995. We carry standard, NRP (non-removable pin for outswing security doors), and hospital-tip variants on the van.
McKinney TA2714. Standard-weight bearing hinge, 4.5-inch x 4.5-inch, ANSI Grade 2 (some Grade 1 variants), 25,000-cycle rating, rated for doors up to 150 lbs. The default on lighter office and residential-commercial doors (storefront tenant office interiors). McKinney TA2314 is the 5-inch heavy-duty version for fire-rated and entry doors.
Hager BB1279. Full-bearing, 4.5-inch x 4.5-inch standard, ANSI Grade 1, 50,000-cycle rating. Very similar to Stanley FBB199 - often spec'd interchangeably. Hager BB1199 is the lighter sibling; BB1168 is the heavy-duty version for hospital and school doors.
Where each fits: FBB199 and BB1279 on entry / fire-rated / school classroom doors. TA2714 on lighter office and tenant interiors. Step up to 5-inch knuckle or 4 hinges total when door weight exceeds 200 lbs (impact-rated entry doors at hotels, hurricane-rated office entries in newer Tradition construction).
For long-cycle / high-traffic doors over 1,000 cycles/day (school corridors, big-box back-of-house) we recommend continuous geared hinges instead - covered on our continuous hinge repair page.
Standard 5-knuckle hinges fail in three ways: bearing wear (door drops, hinge gets loose, knuckle clicks), pin wear (rare on BB hinges, common on plain-bearing PB hinges), and screw walk-out (frame screws back out, door sags, eventually pivots only on the bottom hinge). All three usually mean replacement, not rebuild - hinge hardware is cheap enough that rebuilds rarely make sense.
When to replace all three at once. If one hinge on a 3-hinge door is worn, the other two are usually within 6-18 months of the same fate. Doing one at a time means 3 visits and 3 labor charges. Doing all three on one visit is $180-380 total, parts and labor. Same goes for 4-hinge doors.
When to step up the spec. If a door has failed hinges twice within 5 years, the original spec is wrong for the actual usage. Two upgrade paths: bigger knuckle (4.5-inch to 5-inch, more bearing surface), or add a fourth hinge to distribute load. For school and gym doors we often skip both and go to a continuous geared hinge for the 25 million cycle rating.
When weld-on vs mortar-set matters. Older PSL commercial buildings (Bayshore offices, the older Treasure Coast plazas, the original PSL Boulevard strip) sometimes have weld-on hinges where the hinge leaf is welded directly to the steel frame instead of screwed. Replacing those is a glazier / commercial door company job, not a locksmith one - we'll diagnose and refer. Mortar-set (most newer construction) and standard-mortised hinges are full locksmith scope.
Fire-rated doors. Any door with a UL/Warnock Hersey/Intertek fire label has specific hinge requirements. The label has to be preserved (or replaced with a matching field-affixed label if damaged). Hardware has to be rated for the door's fire rating (20/45/60/90 minute). We carry fire-rated hinges in the common sizes and label the door correctly per code.
| Service | Typical Price | Notes |
|---|---|---|
| Standard 3-hinge door full swap (Stanley FBB199 / McKinney TA2714 / Hager BB1279) | $180 - $380 | Includes all 3 hinges + labor. ANSI Grade 1 / Grade 2. |
| 4-hinge heavy door full swap | $240 - $480 | Includes all 4 hinges. Common on impact-rated entry doors. |
| Single hinge replacement (emergency / partial) | $120 - $240 | We don't recommend - other 2 usually fail soon. |
| NRP (non-removable pin) outswing security upgrade | $220 - $440 | Hardware for outward-swing doors that face outside. |
| 5-inch knuckle heavy-duty upgrade | $280 - $480 | For doors over 200 lbs or fire-rated entries. |
| Hospital-tip / sanitary hinge upgrade | $280 - $480 | Cleveland Clinic Tradition / Tradition Medical specs. |
| Frame screw repair (no hinge replacement, walked-out screws only) | $120 - $240 | Through-bolt or Heli-Coil insert into hollow frame. |
| Decision | Doctor Lockout | Hardware distributor | General contractor | Replace one hinge at a time |
|---|---|---|---|---|
| Same-day install (common stock) | Yes | 1-3 day order-in | 1-2 week schedule | Drags out over months |
| Hardware at MSRP | Yes | 20-40% markup | Stacked markups | N/A |
| Replaces all 3 hinges in one visit | Yes (recommended) | Yes if you order all 3 | Often just the failed one | By definition no |
| Re-specs for actual door weight + traffic | Yes | Sells you what you ordered | Replaces in-kind | N/A |
| Preserves fire-rating label or re-applies | Yes | Varies | Often misses this | N/A |
| Total cost on 3-hinge office door | $180-380 | $280-520 + your labor | $520-980 | $540-720 (3 separate visits) |
Real person on the phone in under 2 rings. Locksmith on-site in 15-30 minutes. Honest price before any tools come out.
Call (772) 284-5142Standard 3-hinge swap with Stanley FBB199, McKinney TA2714, or Hager BB1279 hardware is $180-380 all-in including labor and hardware at MSRP. 4-hinge heavy door is $240-480. Heavy-duty 5-inch knuckle upgrade is $280-480. Hospital-tip / sanitary upgrades for the Cleveland Clinic Tradition campus run $280-480.
All three. If one is worn, the other two have lived the same cycles in the same conditions and are within 12-18 months of the same failure. Doing them all on one visit is $180-380 versus three separate $120-240 visits totaling $360-720. Plus the door alignment is right when all three new hinges are matched.
FBB199 is a heavier-duty full-bearing hinge rated for 200-lb doors at 50,000 cycles. TA2714 is standard-bearing rated for 150-lb doors at 25,000 cycles. FBB199 is the default on entry, fire-rated, and school classroom doors. TA2714 is the default on lighter office and tenant interior doors. Both are ANSI Grade 2 minimum and they're often spec'd interchangeably on mid-grade jobs - the practical difference shows up at year 7-10 on high-traffic doors.
Yes. Fire-rated doors need fire-rated hinges (matching the door's 20/45/60/90 minute rating) and the UL or Warnock Hersey label has to stay readable. We carry fire-rated hinges in the common sizes and if the label is damaged from the previous hardware, we apply a field-affixed replacement label per code. The St Lucie County fire marshal accepts properly-labeled replacements on inspection.
Two causes. (1) Original install used 3/4-inch wood screws that engage only the door jamb pine - not the wall framing behind. Years of cycling vibrate them loose. Fix: longer screws or through-bolts driving into the wall studs. (2) Hollow-metal frame where the screws were going into thin sheet steel that has stretched and stripped over time. Fix: Heli-Coil threaded inserts or larger through-bolts with backer plates. Both add 15-30 minutes per door and roughly $40-80 in hardware to a standard hinge swap.
Depends on traffic and door weight. Under 200 lbs and under 800 cycles/day - 4 standard FBB199 hinges work fine. Over 200 lbs OR over 1,000 cycles/day - continuous geared hinge (Select SL11 / Roton 780-112) is the better long-term spec. The cost difference is roughly $200-400 more up front, paid back in 2-3 years of avoided hinge service. We walk through the math on the quote.
Commercial hinge work happens at every plaza and office building in PSL - Tradition Square, PGA Plaza, Riverwalk Center, the US-1 retail strips, St Lucie West Boulevard offices, the older PSL Boulevard plazas. Heavy school accounts at Treasure Coast HS, Centennial HS, St Lucie West K-8. Medical accounts at Cleveland Clinic Tradition campus and Tradition Medical. Plus industrial in the PSL Industrial Park off Range Line Rd.
Last updated: 2026-05-18
