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Upper Darby sits inside the Darby and Cobbs Creek Watershed a 77-square-mile basin where decades of overdevelopment have created real, documented drainage problems. If your basement takes on water after a heavy rain or your yard stays soggy for days, that’s not bad luck. That’s a grading problem, and it’s one of the most common issues we see on properties throughout Drexel Hill, Stonehurst, Beverly Hills, and Highland Park.
When the grading is done right, water moves away from your foundation instead of toward it. You stop watching the forecast with dread. You stop calling a waterproofing company every other year. In a township where most homes were built between 1910 and 1960, proper drainage is often the difference between a dry basement and an expensive one.
Beyond drainage, there’s the bigger picture. Whether you’re leveling a yard for a new patio, preparing a site for an addition, or finally replacing a retaining wall that’s been leaning a little too far for a little too long the excavation work underneath everything else determines how well the finished project holds up. Get that part right, and everything built on top of it lasts. Skip it, and you’re back to square one faster than you’d think.
We’re based in Aston, PA right here in Delaware County, not a regional chain dispatching crews from an hour away. Renato Spennato is personally involved in every project, which means the person who gave you the estimate is the same person making sure the work gets done right. That matters when you’re trusting someone with your Upper Darby property.
We’ve been working throughout Delaware County long enough to know what Upper Darby’s lots actually look like tight clearances, older foundations, soil that’s been settling for 80 years, and drainage that needs more than a basic slope fix. We’ve done this work in Drexel Hill, we’ve done it in Kirklyn, and we know the difference between a job that looks finished and one that actually is.
Our BuildZoom score of 102 puts us in the top 11% of more than 125,000 licensed contractors in Pennsylvania. That’s independently verifiable, and it reflects the kind of work we’ve consistently delivered across this region.
It starts with a site visit. Before anything gets quoted or scheduled, we look at the property the slope, the soil, the access points, what’s adjacent, and what’s already underground. On Upper Darby lots, that last part matters more than most people realize. Homes built in the early 1900s often have utility lines, drainage infrastructure, and buried surprises that a quick visual won’t catch. We check before we dig. PA One Call (811) is a legal requirement before any excavation in Pennsylvania, and it’s part of our standard process not an afterthought.
From there, we handle the permitting. Upper Darby Township requires a grading and excavation permit before any work begins, and projects near floodplain areas may also require consultation with the Delaware County Conservation District. That’s a layer of paperwork most homeowners don’t want to deal with, and we take it off your plate. Worth noting: permit fees in Upper Darby are increasing effective January 1, 2026 per Ordinance No. 3195 so if you’ve been sitting on a project, sooner is better.
Once permits are in place, the actual work follows a clear sequence: excavation first, grading and compaction next, drainage infrastructure where needed, and then whatever comes after whether that’s a retaining wall, a patio base, or a finished landscape. We don’t hand you off to a separate crew mid-project. The same team that digs it finishes it.
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Excavation is rarely just one thing. Most Upper Darby homeowners coming to us need a combination of services and because we handle everything in-house, you’re not juggling three different contractors on a lot that barely has room for one.
The core of what we do includes residential excavation, land grading, site preparation, and drainage correction. If your yard in Bywood or Primos has been sloping the wrong way for years, we re-grade it properly not just enough to look level, but enough to actually move water where it needs to go. If you’ve got a retaining wall that’s failing along a hillside in Drexel Hill, we excavate, remove, and rebuild it to hold. If you’re starting from scratch on a new patio, outdoor kitchen, or addition, we handle the full site prep so the finished project has a real foundation under it.
Excavation costs in Delaware County typically range from around $1,600 to $6,700 for residential grading projects, with foundation excavation running $5,000 to $12,000 depending on scope and soil conditions. Upper Darby’s dense lots and older housing stock tend to push projects toward the middle to higher end of those ranges not because we pad quotes, but because the conditions here are genuinely more complex than a newer suburb with open access and predictable soil. We give you a clear, written estimate before anything starts, so you know exactly what you’re paying for.
Yes Upper Darby Township requires a grading and excavation permit before any excavation or grading work begins on a residential property. This is confirmed in the township’s published municipal code and actively enforced by the Licenses and Inspections Department. The permit application carries a base fee of $100, plus $25 per $1,000 of estimated job cost. Those fees are scheduled to increase effective January 1, 2026 under Ordinance No. 3195, so if you’re planning a project, starting before that date saves you money.
If your property is near a floodplain area which is a real consideration in Upper Darby given the township’s position within the Darby and Cobbs Creek Watershed you may also need to consult the Delaware County Conservation District and provide a soil characteristics report. Any work that involves opening a public street or sidewalk requires a separate street opening permit on top of that. We handle all of this as part of the project so nothing gets missed and no work starts without the right paperwork in place.
Residential excavation in Delaware County typically runs between $1,600 and $6,700 for grading and site preparation work, with foundation excavation ranging from $5,000 to $12,000 depending on depth, scope, and soil conditions. Upper Darby projects often land toward the middle to upper end of those ranges for specific reasons the housing stock is older with most homes built between 1910 and 1960, lots are tight with limited equipment access, and the soil has been settling for decades in ways that sometimes require more preparation than a newer development would.
Labor rates in the Philadelphia suburban area also run about 15 to 25 percent higher than rural Pennsylvania, which is a real factor in any honest cost conversation. The best way to get an accurate number for your specific Upper Darby property is a site visit not a phone estimate. Conditions vary too much from one lot to the next to give a meaningful quote without seeing the slope, the access, the soil, and what’s already there underground.
Excavation is the process of removing earth digging out material to create space for a foundation, a patio base, a drainage system, or a retaining wall. Grading is the process of shaping the land that remains establishing the correct slope and surface so water drains where it’s supposed to go and the ground is stable enough to build on. They’re related but distinct, and whether you need one or both depends on what you’re trying to accomplish.
For most Upper Darby homeowners dealing with drainage problems, you need both. The excavation removes the problem material or creates space for new infrastructure, and the grading ensures the corrected surface actually functions properly. On a flat or improperly sloped lot in a neighborhood like Stonehurst or Beverly Hills, grading alone done correctly can solve a basement water problem that’s been going on for years. In more complex situations, like a failing retaining wall or a site prep project for an addition, excavation comes first and grading follows. We assess both during the site visit and recommend only what the property actually needs.
Upper Darby has a population density of roughly 14,600 people per square mile one of the highest of any municipality in Pennsylvania. On a practical level, that means most residential lots in the township are tight. You may have a neighbor’s foundation within a few feet of your property line, a shared driveway with limited staging room, or a rowhouse block where equipment access is genuinely constrained.
Contractors who are used to working on open suburban lots sometimes underestimate what it takes to do this kind of work cleanly and safely in Upper Darby’s environment. The equipment choices are different, the sequencing is more deliberate, and the margin for error is smaller when a mistake doesn’t just affect your property it can affect the structure next door. We’ve worked on enough tight Delaware County lots to know how to plan for these conditions before the crew shows up, not after.
Spring is the busiest season for excavation and grading in Upper Darby, and for good reason homeowners who dealt with basement flooding or drainage problems over the winter are ready to fix them before the next round of rain. The ground is workable again after the freeze, and the scheduling window fills up quickly. If you’re planning a spring project, reaching out in late winter gives you the best chance of getting on the calendar at a time that works for you.
Fall is actually an underrated window. Demand is lower, the ground is still workable, and getting grading or drainage work done before winter means your yard is set up correctly heading into the wet season rather than reacting to it afterward. Summer works well for patio and outdoor living projects where the goal is a finished space to use before the season ends. The one time to avoid if you can is deep winter frozen ground significantly increases the difficulty and cost of excavation, and most residential projects are better deferred until the ground thaws.
We handle the full project and for most Upper Darby homeowners, that matters more than it might seem. Most excavation-only contractors stop at the dig. You get a graded yard or an open hole, and then you’re on your own to find a separate contractor for the retaining wall, the patio base, the drainage infrastructure, or whatever the finished project actually requires. On a tight Upper Darby lot where coordinating multiple crews is a genuine logistical challenge, that handoff creates real problems.
We cover the entire scope: excavation, land grading, site preparation, retaining walls, patios, walkways, and outdoor living spaces. The same team that handles the dig stays through the finished grade and into the hardscape work if that’s where the project goes. One point of contact, one contract, one crew that knows the full plan from the start. For homeowners in Drexel Hill, Kirklyn, or anywhere else in Upper Darby who want the job done without managing a rotating cast of subcontractors, that’s the practical value of working with a full-service Delaware County contractor.
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