Guides
Plain answers for Concord, read in a few minutes.
Bores and backsets, doors brought onto one key, patio sliders, buzzer panels and storefront cylinders, written for this city and nowhere else.
Aug 2026 · 8 min read
Before a Shop by Todos Santos Plaza Changes a Storefront Cylinder: Six Things to Settle
New lease on Salvio Street, a member of staff gone, or a key that never came back. Changing the cylinder on an aluminum storefront door is an hour of work and ten minutes of decisions. Who is entitled to a key, what the lease says the landlord keeps, which cylinder the door actually takes, what goes on the inside face, and the 2026 figures.
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Jul 2026 · 8 min read
A 1974 Deadbolt on a 1961 Door: Mismatched Backsets, Filled Holes and the Mess Left Behind
Half the front doors in Concord carry a deadbolt that arrived a decade or more after the door did, drilled by hand on a Saturday. Off-center holes, a bolt that only throws halfway, a strike screwed into trim rather than framing, and a plate hiding a filled hole. What can be corrected, what has to be covered, and when the door itself is the answer.
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Jun 2026 · 7 min read
Buzzer Panels and Unit Numbers on Monument Boulevard: What a Tenant Can Arrange Alone
A fourplex on Detroit Avenue, a block of apartments off Monument. Some of the hardware is yours to deal with and some of it is the manager's, and calling about the wrong one wastes an evening. What the entry panel really is, which door your name is actually on, why the lobby latch never catches, what gets asked at 11pm, and the 2026 figures.
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Apr 2026 · 7 min read
The Aluminum Patio Slider on a Sixties Tract: Why the Factory Latch Gives Up
Almost every tract house here has one: a wide aluminum slider onto the back patio, original, and no longer latching properly. The latch is rarely the whole problem. What the pot-metal hook actually does, why worn rollers break it, which fixes are five minutes and which are hardware, what should never be screwed near that glass, and the 2026 figures.
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Mar 2026 · 8 min read
One Key for the House, the Garage Side Door and the Back Gate
Most Concord houses ended up with four or five keys because the doors were replaced one at a time. Putting them all on a single key is ordinary work, but only where the keyways agree. What can be brought onto one key, what genuinely cannot, why the cluster mailbox is not yours to change, and how a whole house is counted into one figure.
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Feb 2026 · 8 min read
Same Bore, Same Backset: What Will Actually Fit a Concord Tract Door
Concord went up in one push, so street after street carries the same few holes in the same few places. Four measurements decide what you can hang on that door and what would mean cutting wood. Which upgrades drop straight in, which leave a ring of bare paint, what a 1-3/8 inch door will not take, and the 2026 figures.
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Give the street, hear the figure, and the door gets opened the way it was built to be opened
Concord, Pleasant Hill, Pacheco, Clayton, Martinez and Walnut Creek, 24/7, holidays included. Say what the door is doing and one figure comes back with the $89 visit already inside it and the hour already counted. The lock is opened without damage wherever it can be, and the receipt shows what the call showed, whether the deed is in your name or the lease is.