Mailbox Install Cost LA

Standard curbside post install: $150–$280

About half of Los Angeles mailbox jobs are a standard curbside post install on a residential street where the carrier delivers from the truck. For a homeowner-supplied post and box (cedar 4x4 or steel pipe with a basic T2 or T3 USPS-approved box), the typical LA price is $150–$220. For a heavier decorative post, locking box upgrade, or a corner lot that needs the post repositioned to meet the carrier's path, expect $200–$280.

What's actually included at this price: digging the post hole 18–24 inches deep, setting the post plumb, backfilling with tamped soil or quick-set concrete, mounting the box at the USPS-compliant height (41–45 inches from the road surface to the bottom of the box), and aligning the box face 6–8 inches back from the curb. Most pros bring a post-hole digger, level, and a small bag of fast-setting concrete; the homeowner supplies the post, box, and house numbers.

What's not included unless you specify: removing an existing concrete-set post (add $40–$80 for breakup and haul), painting or staining the new post, or running power for an illuminated address light. Anything below $150 is usually a no-insurance side gig — fine for a quick swap, but no recourse if the post leans in six months.

Wall-mount on stucco or brick: $120–$220

A surprising number of LA homes have wall-mount mailboxes rather than curbside posts — typical of older Hancock Park and Los Feliz bungalows, DTLA lofts with street-facing entries, and Spanish-revival homes throughout the Eastside where the carrier walks the route. Mounting a wall box on stucco runs $120–$180. Mounting on real brick or stone (1920s chimneys, original Pasadena masonry) runs $160–$220 because the pro is using masonry bits and proper anchors instead of stucco screws.

The job is faster than a post install — usually 45–60 minutes — but the failure mode is different. A wall-mount box that's anchored only into stucco (not the wood sheathing behind it) will eventually pull out under the weight of a few months of mail and packages. A pro worth their rate will locate solid backing or use proper toggle anchors rated for the load, and seal the screw penetrations with paintable caulk so water doesn't get behind the stucco.

What's not included unless you specify: patching and color-matching old screw holes from a previous mailbox (add $30–$60), running address numbers across the front, or replacing a corroded mounting plate behind a metal box.

Locking mailbox upgrade: $180–$340

Mail piracy is a real concern in parts of LA — DTLA, Hollywood, Echo Park, and stretches of Mid-City have seen enough check-washing and identity theft cases over the past few years that most homeowners now ask about a locking mailbox by default. A locking residential box (Mail Boss, Architectural Mailboxes Oasis, Step2 MailMaster) costs $130–$280 retail, and the install adds $50–$120 on top.

Two common configurations in LA:

• Drop-slot locking box on existing post: pro removes the old non-locking box, mounts the locking unit (heavier, often steel), checks USPS slot dimensions, and re-aligns. Total install: $180–$240.
• Locking column-mount or pedestal install: heavier unit with a key-retrieval door. Often paired with a concrete footing because the box itself can weigh 30–50 lbs. Total install with footing: $260–$340.

Full post replacement with concrete footing: $250–$450

When a post is leaning, rotted at the base, or was hit by a car (a regular occurrence on narrower Mar Vista, Highland Park, and Eagle Rock streets), the job becomes a full replacement rather than a swap. The pro digs out the old footing, hauls the broken post and concrete chunk, sets a new post 24 inches deep in fresh concrete, and re-mounts the box.

Pricing in LA for a full replacement with concrete footing typically runs $250–$350 for a standard 4x4 cedar or pressure-treated post with a homeowner-supplied box. For a decorative cast-aluminum post (common in Beverly Hills, Brentwood, and Bel-Air HOAs), $350–$450 is more typical because the post itself is heavier and the alignment tolerance is tighter.

One thing to know about concrete footings: they need to cure before the box gets hung with mail in it. Most pros use Quikrete fast-setting concrete that's structurally set in 4 hours and fully cured in 24, but a heavy locking box loaded with packages on day one can shift a footing that hasn't fully cured. Ask the pro when the box is safe to load — most will say next morning.

USPS-compliant retrofit: bringing an old install up to spec

USPS has specific requirements for residential curbside boxes: the box must be 41–45 inches from the road surface to the bottom of the incoming mail door, the front of the box must be 6–8 inches back from the curb face, and the box must be approved by the Postmaster General (look for the 'POSTMASTER GENERAL APPROVED' marking inside). A lot of older LA installs — especially homes that haven't changed hands in decades — are out of spec. Carriers will sometimes flag the box and ask the homeowner to bring it up to standard before service continues.

A retrofit visit usually means raising or lowering the box on an existing post, repositioning the post if it's too far from or too close to the curb, or swapping a non-approved decorative box for an approved one. Pricing runs $100–$220 depending on whether the existing post can be reused.

• Height adjustment only (existing post, existing box, just reposition the box on the post): $100–$140.
• Box swap with height check: $140–$180.
• Post repositioning with new concrete footing: $180–$260 (close to a full replacement).

What changes the quote up: 5 common variables

Beyond the install type, five things most often push an LA mailbox quote up:

• HOA-approved decorative posts (Beverly Hills, Bel-Air, Brentwood, San Marino): cast aluminum with specific paint codes, heavier and slower to set. Add $80–$160.
• Hard or rocky soil: hillside lots in Mt. Washington, Silver Lake, and parts of Encino can hit caliche or buried concrete. Add $40–$80 for extra dig time.
• Heavy locking box (over 30 lbs loaded): needs deeper footing or upgraded post. Add $30–$60.
• Removal and haul of broken concrete footing: the old footing has to go somewhere. Add $30–$60.
• Same-day USPS hold or carrier coordination: pro times the install around mail delivery so the box is up before the next route. Add $20–$40.

What you can supply to lower the quote

Two things that keep an LA mailbox quote at the lower end:

First, buy your own post and box ahead of the visit. Cedar 4x4s run $25–$45 at any LA Home Depot or Lowe's; standard T2 USPS boxes run $30–$60. Locking boxes from Mail Boss or Architectural Mailboxes range $130–$280. The pro doesn't markup what you supply, and you save the materials margin.

Second, dig out the old footing yourself if it's accessible and you have a few hours on a weekend. A pro can charge $40–$80 just for the dig-and-haul portion of a replacement; if the hole is already open and the chunk is at the curb for haul, that line goes away. Most homeowners don't bother, but if you're already doing yardwork, it's an easy save.

Third, schedule the install on a weekday morning. Curbside work is faster when there's less street traffic, fewer parked cars in front of the pole location, and no neighbors backing out of driveways during the dig. A weekday morning slot often gets a slightly faster job and a more relaxed pro, which is its own kind of value.

HOA approvals and Beverly Hills/Brentwood styles

A subset of LA neighborhoods — Beverly Hills, Bel-Air, Brentwood Park, San Marino, parts of Pasadena's Oak Knoll, and gated Hancock Park enclaves — have HOA or design-review committees that specify mailbox style, color, and post type. Common requirements: cast-aluminum decorative posts in matte black or dark bronze, specific box models (Whitehall, Salsbury, Architectural Mailboxes Coronado), and uniform house-number fonts.

When you book in one of these neighborhoods, mention the HOA name or 'design-review approval needed' in the message. The pro will ask for the approved spec sheet (most HOAs publish a one-page PDF) and source matching hardware before the visit. Trying to install a non-conforming box in these neighborhoods almost always ends with the HOA flagging it within 30–60 days and the homeowner paying for a second install.

What this looks like on the quote: a Beverly Hills cast-aluminum post and decorative box install with concrete footing typically runs $400–$600 for install alone (vs $250–$350 for a standard cedar post), plus $250–$600 for the post and box at HOA-approved spec. The total install package lands around $700–$1100.