When to Fill Asphalt Cracks in Hobbs, NM Before They Spread
By Hobbs Paving · Asphalt paving, sealcoating & striping in Hobbs, NM
A crack in your driveway or parking lot is the cheapest problem asphalt will ever hand you, and it is also the one most property owners walk past for two or three years. It looks like a cosmetic flaw. It is not. A crack is an opening in an otherwise sealed surface, and everything that shortens the life of pavement in Lea County — water, sand, sun and heavy wheel loads — gets its foothold through that opening. Nearly every pothole we patch in Hobbs started as a crack somebody meant to get around to. This guide covers how to read the cracks you already have, what the different patterns actually tell you about the pavement underneath, the difference between crack filling and crack sealing, when in the year to do the work in the Permian Basin, and the point at which a crack has gone too far for filler to help.
We handle crack repair on driveways, church lots, apartment complexes and commercial properties across Hobbs, Lovington, Eunice, Jal, Tatum and Monument, and out along US-62/180 and NM-18. Here is what we look at when somebody points at a crack and asks whether it matters.
Why a crack in Hobbs asphalt is a water problem, not a looks problem
Asphalt is a surface course. It carries load, it sheds water, and it protects the compacted aggregate base underneath, which is the part that actually holds your vehicles up. As long as the surface stays continuous, water runs off it and away. The moment there is a crack, water runs into it instead, and it does not stop at the crack. It travels down into the base, spreads sideways along the bottom of the asphalt, and softens the compacted stone that everything above depends on.
People assume this is not a big deal in a dry climate, and that assumption costs a lot of pavement around here. Hobbs averages a modest amount of rain a year, but the way it arrives is what does the damage. Monsoon storms in late summer drop a lot of water in a short window, faster than the ground can take it, so runoff sheets across driveways and lots and pours into every opening it finds. A dry climate with sudden hard rain is arguably harder on cracked asphalt than a wet climate with steady drizzle, because the volume comes all at once and it comes with force. Add blowing sand and grit packing into the crack between storms, wedging the faces apart a little wider each season, and heavy trucks flexing the pavement on either side of an opening that no longer transfers load across itself, and a hairline crack turns into a wide one, then into an alligatored patch, then into a pothole.
The Permian Basin sun works the same crack from above. Ultraviolet exposure oxidizes the asphalt binder and makes the pavement more brittle over time, so an aging surface has less ability to flex and more tendency to crack further at the edges of an existing opening. That is why crack repair and sealcoating belong in the same conversation: filling stops water going down, sealcoating slows the sun coming in.
Reading the crack: what each pattern is telling you
Not all cracks mean the same thing, and the pattern matters far more than the width. Before we quote anything, we walk the surface and sort what we see into a few categories, because two of them are simple repairs and one of them is a warning that filler will not fix.
Straight-line cracks running the length of the pavement are usually longitudinal cracks, often along a paving joint or the centerline of a driveway. These are extremely common, they are typically a surface-level issue, and they are the ideal candidate for filling. Catch them early and they stay a maintenance item forever.
Cracks running straight across the pavement, perpendicular to the direction of travel, are transverse cracks. These usually come from the asphalt shrinking and expanding through temperature swings, and Hobbs delivers plenty of those, with hot days and much cooler nights across a lot of the year. They are also good filling candidates.
Cracks that break the surface into interconnected pieces, sometimes described as looking like alligator hide or dried mud, are a different animal entirely. Block cracking across a large area often points to an old, dried-out surface that has lost its flexibility. Tighter, irregular alligator cracking concentrated in wheel paths or near a lot entrance almost always means the base underneath has failed and is moving under load. Filler poured into that will disappear into the ground and the pattern will be back within a season, because the problem is not the crack, it is what is under it.
Cracks along the outer edge of a driveway or lot are edge cracks, and they usually mean the shoulder alongside the pavement has eroded or was never properly supported. Unsupported asphalt edges crumble, and they crumble faster once water starts working the joint. These often need the edge rebuilt as well as the crack treated.
Not Sure What Your Cracks Mean?
We will walk your driveway or lot, tell you honestly which cracks are routine and which ones are a base problem, and lay out the fix — Hobbs & Lea County.
Crack filling vs. crack sealing: the difference that actually matters
The two terms get used interchangeably, including by contractors, but in the trade they describe two different jobs with different materials and different purposes. Knowing which one your pavement needs keeps you from paying for the wrong thing or, more often, from getting a repair that does not last.
Crack filling places a material into a crack that is essentially stable — one that is not opening and closing much through the year. The material fills the void, blocks water, and keeps sand and debris out. It is the right treatment for most residential driveways and for older pavement with a lot of non-working cracks, and it is straightforward, fast work.
Crack sealing uses a flexible, rubberized material designed to stretch and compress as the crack moves with temperature. Working cracks — the ones that visibly widen in cold weather and pinch closed in summer heat — will push rigid material right back out of the joint, so they need a sealant that moves with them and stays bonded to both faces. Sealing usually involves routing or cleaning the crack to a consistent shape first so the material has a proper reservoir to sit in and a clean surface to grip.
In Hobbs we see a lot of movement in pavement simply because of the daily temperature swing, so working cracks are common on commercial lots that see real traffic. Federal guidance on pavement preservation from the U.S. Federal Highway Administration puts crack treatment near the top of the list of maintenance that returns the most pavement life per dollar spent, and the reason is exactly this: it is inexpensive, it takes very little time, and it prevents the failure mode that costs the most to correct. Our crack filling page covers the materials and process we use for each situation.
Timing: when to fill cracks in the Permian Basin
There are two timing questions — how soon in the life of the crack, and what time of year — and they pull in slightly different directions.
On the first, the answer is simple: as soon as you can get a crack filler to bond to it. A crack that is a quarter inch wide is a five-minute repair. That same crack two summers later, after sand has wedged it open and monsoon runoff has washed a channel under it, is a saw-cut-and-patch job, and the season after that it is a pothole with a soft spot around it. There is no version of this where waiting is cheaper. If you can slide a credit card into it, it is worth treating; if you can drop a pencil into it, treat it now.
On the calendar question, cooler weather is better, and around Hobbs that means spring and especially fall. Asphalt cracks are at their narrowest in the heat of summer, when the pavement has expanded and squeezed the opening nearly shut. Fill a crack at its narrowest and you get very little material down into it, and when the pavement contracts on a cold January night the crack widens around a plug that no longer fits, or pushes the material back out at the surface. Do the same work in October and the crack is open closer to its true dimension, the material goes down where it belongs, and it has somewhere to compress into when summer comes back. Fall has a second advantage: it comes after monsoon season rather than during it, and it puts a sealed surface in place before winter.
The exception is an active problem. If a crack in a commercial lot is visibly taking on water every time it rains, or you can already see the pavement deflecting under a truck near the opening, that gets addressed when we find it, not in three months. Damage compounds faster than the seasonal advantage is worth.
What a proper crack repair looks like, and when filling is no longer the answer
A crack repair that lasts is mostly preparation. The crack has to be genuinely clean before anything goes into it, which around here means getting out the packed sand and grit that has worked its way down, along with any vegetation that has taken root in the opening. We clear the crack out with compressed air or a mechanical cleaning pass, and where the crack is irregular or the edges are ragged we rout it to a consistent shape so the material has clean faces to bond to and a reservoir deep enough to hold. Skipping this step is the single most common reason a crack repair fails — material poured over dirt is not bonded to anything, and it lifts out in sheets within a year.
The crack also has to be dry. Material applied into a damp crack will not adhere properly, so we schedule around recent rain and give the pavement time to dry through, not just on the surface. Then the material goes in, worked down into the crack rather than laid across the top, and finished so it sits flush or very slightly proud of the surface without building a ridge that catches a snowplow blade or a tire. Wide cracks get filled in more than one pass so the material fully occupies the void instead of bridging over an air pocket. For a small driveway the whole job is often done inside a morning, and on most residential work you can be back on the surface the same day.
There is a point where filler stops being the right tool. When cracking has gone interconnected across an area, when the surface deflects or feels spongy as a vehicle rolls over it, when you can see pumping — fine material washed up onto the surface after a storm — or when a crack has already opened into a hole with crumbling edges, the base underneath has failed and no surface treatment will bring it back. Those areas need the failed section cut out, the base repaired and compacted, and new asphalt placed, which is asphalt repair rather than crack work. On a larger lot it is common to do both in one visit: cut and patch the handful of failed areas, then clean and fill every sound crack across the rest of the surface so the good pavement stays good. If you are not sure which category your pavement falls into, that is exactly the call to make before another monsoon season runs through it. Call and we will come look at it, tell you plainly what we see, and give you the honest version rather than the expensive one.
Frequently asked questions
How wide does an asphalt crack have to be before it needs filling in Hobbs, NM?
As a working rule, anything you can slip a credit card into is wide enough to treat, and anything wide enough to drop a pencil into should be treated soon. Very fine hairline cracking, the kind that looks like a faint pencil line on the surface, is usually handled better by sealcoating than by crack filler, because filler needs enough width to bond to both faces of the crack and a hairline opening will not accept it properly. Once a crack reaches roughly a quarter inch it is an open channel into your base, and in Hobbs that matters more than the width suggests, because monsoon runoff arrives fast and blowing sand packs into the opening between storms. Width is only half the question, though. A single straight crack an inch wide is often a routine fill, while a network of connected cracks a quarter inch wide can mean the base underneath has already failed. We look at the pattern before we quote the repair.
What time of year should asphalt cracks be filled in the Permian Basin?
Spring and fall are the sweet spots around Hobbs, with late fall being the single best window in most years. Asphalt cracks open and close with temperature, so the width you see in July is the narrowest that crack will ever be, and material placed into a summer-narrowed crack gets squeezed and pushed out when the pavement contracts in winter. Cooler weather opens the crack closer to its full width and lets us get material all the way down into it, so the repair has room to compress rather than being forced out. The other reason to favor fall in Lea County is that it puts a sealed surface in place before winter, and it follows the monsoon season rather than fighting it. That said, an actively leaking crack in a parking lot does not wait for a better season. If water is getting into your base right now, filling it in August still beats leaving it open until November.