A commercial parking lot that has failed in spots rarely needs a full replacement. Detroit Concrete triages parking lots by zone, patches isolated failures, mills and overlays where the surface is worn but the slab is sound, and replaces only the sections that cannot be saved. The result is a working lot for far less than tear-out and re-pour, with operations continuing around the work. Every assessment is free.
Parking lots fail in zones, not uniformly. A truck-turn area takes more abuse than customer parking; a downhill joint catches all the salt; a corner that ponds water spalls first. Repair triages those zones individually and addresses each with the right tool, patches for potholes and isolated spalls, mill-and-overlay for worn surfaces, joint resealing for failed joints, sectional replacement for slabs that cracked through.
Where the whole lot has failed (asphalt at end of life, concrete with systemic base failure), repair is throwing money at a doomed surface and the honest answer is a new parking lot instead. We assess that up front and the quote will say which case you are in.
We walk the lot zone by zone with operations, mark every failure (pothole, spall, crack, joint failure, ponding area), photograph and measure each, and identify the root cause of each.
Saw-cut and remove failures
Failed sections are saw-cut with concrete saws to create clean edges, the failed concrete is removed without damaging adjacent sound slab, and the base is inspected and corrected where needed before patching.
Place bonded repair material
The right repair material is selected for each failure (concrete patch for slab failures, joint sealant for joints, mill-and-overlay material for worn surfaces) and placed with proper bond to the existing slab.
Restore finish and reopen
Patched and overlaid sections are finished to match the surrounding lot in elevation and texture, joints are re-sealed, and the lot is brought back to service zone by zone as cure times allow.
When the lot is past repair
Some Lots Need Replacement, Not Repair
Repair is the right tool when failures are localised, the base is sound, and the surface is mostly intact. It is the wrong tool when the base has failed everywhere (chronic ponding and spalling across the whole lot), when the original slab was poured too thin for the actual use, or when the asphalt has reached end of life and is failing in every section.
In those cases the honest answer is a new parking lot. Repair spend on a doomed lot is a year-by-year expense that never catches up to the real problem; a one-time replacement of the whole parking footprint stops the spend cycle for decades.
Potholes, spalling, joint failure, mill-and-overlay and when the whole lot needs to come out.
Both. We patch asphalt failures with hot mix, mill and overlay where surface wear is the issue, and crack-seal where appropriate. Asphalt lots reach end of life faster than concrete; we will tell you when repair stops being economical.
Sectional concrete replacements match closely in finish and elevation; asphalt patches are visible but flush. The match is part of the quote so the expectation is realistic before the work starts.
Yes. We sequence repairs zone by zone so most of the lot stays open during the work. The exact zoning plan is built around your operations and is part of the quote.
A bonded patch on a sound base lasts as long as the surrounding lot, which can be decades for concrete. A patch placed over a failed base will fail again within a season; base correction is part of the right repair.
From a single visit for a few potholes to a week or two for multi-zone repair across a large lot. Scope drives the schedule; the full timeline is in the quote so you can plan operations around it.
Client reviews
What Detroit Operations Say About Their Lot Repairs
Three zones with chronic ponding had spalled the slab. They corrected the drainage in those zones, patched the spalls, and the lot has held two springs. Real diagnosis, not just patching.
Z. Y.
Property Manager, Detroit
★★★★★
Truck-turn area had failed at six years. They mill-and-overlaid that specific zone, left the rest of the lot alone, and the operations never had to close. Smart scope, real savings.
Z. X.
Industrial Park Manager, Warren
★★★★★
They were honest that one corner of the lot was past saving and needed sectional replacement, not just a patch. Did the replacement, patched the rest, total cost stayed inside budget.
Y. O.
Retail Operations, Ann Arbor
★★★★★
Joint seals had failed across the whole lot. Resealed them all in two days, lot stayed open the whole time, and the salt water stopped finding the slab. Right tool for the actual problem.
Q. E.
Logistics Director, Sterling Heights
From the blog
Concrete Guides & Articles
Practical reading on planning, finishes and caring for concrete in Detroit.
Tell us where the lot is failing and how operations need to continue around the repair work, and we will triage on-site and put options into a written quote.
