How do we replace the cluster mailboxes in our HOA?

By OurHOA · General information · Revised September 24, 2026

How an HOA board replaces cluster mailboxes: who owns them, getting postmaster approval, bids, the USPS master lock, key handout, and an owner notice to copy.

Part of the HOA board handbook: vendors, projects and upkeep.

The short answer

If the association owns the cluster box units, the association replaces them, and the Postal Service has to sign off before anything is bought. The Postal Operations Manual puts purchase, installation and maintenance of mail receptacles on the customer, and the USPS guide for builders and developers adds repair and replacement to that list. In most self-managed communities built in the last few decades, the developer bought the units and the association inherited them with the common area. The job then has four parts: confirm ownership, get the local postmaster or USPS Growth Manager to approve the equipment and the sites, buy and install approved units, and hand out new keys without losing a week of anyone's mail. Rules vary by state and by your governing documents, and this guide is general education, not legal advice.

Find out who owns the boxes first

Do not assume. Section 632.12 of the Postal Operations Manual lets the Postal Service elect to buy, install and maintain cluster box units under some conditions, and older neighborhoods sometimes have postal-owned units. The manual treats the two kinds differently. For postal-owned units, USPS gives each customer a compartment lock and three keys. For privately owned units, the manual says the builder or property owner is responsible for lock and key service. Check the plat and the deed to the common area for the pads, look for the units in the reserve study, and search old board minutes and invoices for a mailbox purchase. Then call the post office that delivers to you and ask the postmaster directly: who owns the units at our addresses? Write down the name of the person you spoke to and the date. If USPS owns them, the replacement is theirs to schedule, and the board's job shrinks to reporting damage and passing news to owners.

Get postal approval before you buy anything

The manual is blunt about equipment. Centralized delivery must use receptacles that meet USPS-B-1118, the Postal Service specification for cluster box units, or USPS-STD-4C for wall-mounted boxes, and there is no local authority to approve anything else. USPS publishes a list of approved equipment and manufacturers in its Postal Bulletin, and the builders guide says the local USPS Growth Manager or a designee must approve both the sites and the type of equipment. So the first call is to the post office, before the first vendor quote. Ask four questions: which approved models will you accept, can the new units sit on the existing pads, how will you install the master access lock, and how will mail be handled on the day of the swap. The master access lock is the carrier's lock. USPS furnishes it and will not give it to a buyer to pre-install, so the swap date depends on the post office's schedule, not only your contractor's. If you want to move a unit, expect more questions. The builders guide says units should typically sit within one block of the homes they serve, and it tells you to check accessibility rules with local building officials.

Scope, bids and the vote

Count before you shop: compartments in use, spare compartments, parcel lockers, and the condition of each concrete pad. A unit with a rusted door can sometimes be repaired, while a unit hit by a car usually needs replacing along with its pad and anchor bolts. Put the count, the postmaster's answers and the approved model list in a short scope, and ask two or three installers to price the same thing, as our guide on writing an HOA request for proposal describes. Some states set bid rules that a neighborhood-wide replacement can trigger. In Florida, section 720.3055 requires competitive bids when a contract for materials, equipment or services costs more than 10 percent of the association's total annual budget, including reserves, and it does not force the board to take the lowest bid. In Texas, Property Code section 209.0052(c) requires an association contracting for services that cost more than $50,000 to solicit bids through its own bid process, and 209.0052(b) sets conditions before a director or a director's relative can win the contract. Texas also requires board meetings to be open to owners under 209.0051, and Colorado's open meeting rule is in section 38-33.3-308. A motion the board can adapt: 'Move to approve the purchase and installation of [number] USPS-approved cluster box units from [vendor] for $[amount], paid from the reserve fund, contingent on written site and equipment approval from the local postmaster.'

A sample timeline

For a 60-home community with five units, plan on roughly three months. Week 1: confirm ownership and meet the postmaster or Growth Manager. Weeks 2 to 4: write the scope, collect bids, and check each installer's insurance. Week 5: vote at an open meeting and sign the contract. Week 6: set the swap date with the post office and mail the first owner notice. Weeks 6 to 10: the manufacturer ships and the contractor repairs pads. Week 9: send the second notice. Week 10, swap week: the contractor removes the old units, sets the new ones, and the post office installs its master lock. Then the board hands out keys over two or three set sessions. Week 14: collect the last keys, file the key log, and update the reserve study with the new units and their install date. If the post office cannot commit to a same-day master lock install, move the swap date instead of leaving new units unusable.

Handing out keys without losing control of them

New units ship with a lock and keys for each compartment. Treat those keys like cash. Keep them in a locked box, and hand them out only in person to the owner of record, or to a tenant who brings written authorization from the owner. Have each person sign a key log with the address, compartment number, number of keys received, date and signature. Hold the pickup sessions at the mailbox or clubhouse on a weekday evening and a Saturday morning, and keep unclaimed keys locked up until someone with authority collects them. Decide the lost-key rule now: whether the association changes a compartment lock at the owner's cost, what that costs, and how an owner requests it. When a house sells, the manual's approach for postal units is a good habit for private ones too: change the lock before the new owner gets keys. Old units should leave the site with the contractor the day they come out. A pile of old boxes with working locks behind the clubhouse invites trouble.

Wording for the owner notice

Send the notice about four weeks before the swap and again a week before. Owners care about two things: when mail stops, and how they get keys. A paragraph the board can copy: 'The association is replacing the neighborhood cluster mailboxes during the week of [date]. The Postal Service has approved the new units and will install its carrier lock on [date]. [Describe how mail will be handled that day, as confirmed by the post office.] New keys will be handed out at [place] on [dates and times]. Bring photo ID. Tenants must bring written authorization from the owner. Each household will receive [number] keys and sign for them. Old keys will stop working when the old units are removed.' Post it at each mailbox too, since that is where every owner stands every day.

Mistakes boards make

The most expensive mistake is buying units before the post office approves them. No local post office can approve equipment outside the USPS specifications, so an unapproved unit may never get mail. The second is relocating units without asking, which can mean a second approval and a second installation. Other common ones: forgetting parcel lockers when counting compartments, handing keys to whoever shows up at the pickup session, and letting a board member's relative quote the job without following your conflict rules. If the units are being replaced because of break-ins, report the damage. Tearing down or breaking open a mail receptacle is a federal crime under 18 U.S.C. 1705, punishable by up to three years in prison. The Postal Service takes theft reports at uspis.gov/report or 877-876-2455, and your insurer will want the report number if you file a claim. For pads, signage and lighting around the units, add them to the routine walk-throughs in our guide on an HOA preventive maintenance schedule so small problems get caught early.

Sources

These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.

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