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Haverford is one of the most established communities on the Main Line and a big part of what makes it that way is the housing stock. Homes built in the 1920s and 1930s, stone foundations, mature tree canopies, and decades of existing drainage infrastructure don’t leave much room for error when excavation work begins. Getting it wrong near a century-old foundation doesn’t just create a mess it creates damage that costs far more to fix than the original project ever would have.
That’s the part most homeowners don’t think about until it’s too late. Haverford Township sits within the Darby Creek and Cobbs Creek watersheds, and the clay-heavy soil throughout this area holds water in ways that catch people off guard. When grading isn’t done with drainage as the first priority, you end up with runoff pooling against your foundation, erosion eating away at your yard, and water finding its way into places it was never supposed to go.
When excavation and grading are done correctly with the right equipment, the right technique, and a real understanding of how water moves across a sloped Main Line lot you get a yard that functions the way it should. Your foundation stays dry. Your retaining walls hold. And whatever comes next, whether that’s a patio, an outdoor kitchen, or a complete landscape overhaul, it’s built on a base that was prepared properly from the start.
We’re based in Aston, PA Delaware County, same as you. Owner Renato Spennato has been doing this work for over a decade, and our BuildZoom score of 102 puts us in the top 11% of more than 125,000 licensed contractors across Pennsylvania. That’s not a self-declared claim it’s a third-party score you can verify yourself.
What separates us from a standard excavation company is the full-service model. Most dig crews finish their work and leave you to coordinate whoever comes next. We handle the entire arc site preparation, land excavation, grading, retaining walls, patios, and finished outdoor living spaces all under one contractor. For a homeowner in Haverford investing in a property worth well over $800,000, that continuity matters.
Reviews consistently mention Renato by name, describe crews that showed up on time or early, and call it “arguably the best contractor experience I have had as a homeowner.” That kind of feedback doesn’t happen by accident.
Every project starts with a site assessment not a sales pitch. Before any equipment shows up, the grade of your lot gets evaluated, existing drainage patterns get identified, and any underground utilities get marked through Pennsylvania’s 811 call-before-you-dig requirement. On older Haverford properties, that step is especially important. You’ve got mature root systems, stone boundary walls, and in many cases, drainage infrastructure that’s been in the ground for 60 or 70 years. Knowing what’s there before the first cut protects all of it.
From there, the permitting process begins. Haverford Township’s Chapter 78 ordinance requires a grading permit for virtually any excavation that exceeds three feet in depth or covers more than 200 square feet which means most meaningful residential projects need one. We handle that process directly, which removes a real friction point and keeps the project on a legal footing from day one.
Once permits are in hand and the site is prepped, excavation and grading proceed with drainage as the guiding priority throughout. On sloped Main Line lots, that means establishing proper grade away from the foundation, accounting for how runoff will move across the finished surface, and compacting the base correctly so the work holds through Pennsylvania’s freeze-thaw cycles. When the excavation is complete, whatever comes next a retaining wall, a patio base, a full outdoor living build starts on ground that was prepared to last.
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Residential excavation in Haverford, PA looks different than it does in newer-construction suburbs. You’re not working with a clean, flat lot and fresh soil. You’re working around stone foundations, mature trees with established root systems, existing retaining walls, and drainage infrastructure that may have been installed before anyone currently living there was born. The equipment and technique have to match the environment not the other way around.
Our fleet includes bulldozers, excavators, and loaders scaled for residential work, operated by people who understand how to move through a tight Main Line lot without turning everything adjacent to the project into collateral damage. That matters when your property has a 90-year-old oak or a stone wall that contributes to its value and its character.
The scope of work we offer covers site preparation and land clearing, excavation for patios, retaining walls, and outdoor structures, yard grading and regrading, drainage correction, and full site prep for additions or outbuildings. Because we also handle the hardscape and outdoor living work that follows, the excavation isn’t treated as an isolated task it’s planned with the finished project in mind. For Haverford homeowners who want one contractor accountable for the whole outcome, that’s the difference between a project that goes smoothly and one that doesn’t.
Yes, in most cases you do. Haverford Township’s Chapter 78 ordinance makes it unlawful to grade, fill, strip, or regrade any land within the township without first securing a permit. The only exception is an excavation that doesn’t exceed three feet in vertical depth and doesn’t cover more than 200 square feet and even that exception doesn’t eliminate the grading permit requirement if you’re using the excavated material for fill or regrading elsewhere on the property.
In practice, that means virtually any meaningful residential project retaining wall prep, patio base excavation, yard regrading, drainage correction requires a permit before work begins. The permit is administered through Haverford Township’s Building and Codes Department, and the township uses an online permit system through havtwp.org. Working without one can result in stop-work orders, fines, and complications if you ever sell the property. We handle the permit application process directly, so you’re not navigating township paperwork on your own.
Excavation costs in the Philadelphia suburban area typically range from around $1,600 to $6,700 for standard residential projects, with a common average landing near $4,000. Foundation excavation tends to run higher often $5,000 to $12,000 depending on depth, access, and soil conditions. Grading work can range from a few hundred dollars for minor corrections up to $6,500 or more for larger lots with significant grade changes.
In Haverford specifically, a few factors tend to push costs toward the higher end of those ranges. The clay-heavy soil throughout Delaware County requires more careful compaction and drainage planning than looser soil types. Older properties often have existing underground infrastructure drainage pipes, old utility lines, stone foundations that requires slower, more deliberate excavation technique. And the Philadelphia suburban market carries a regional cost premium of roughly 10 to 25 percent over rural Pennsylvania labor rates. The best way to get an accurate number for your specific lot is a site assessment not a ballpark over the phone.
Spring is the most popular window, and it books up fast. Once the ground thaws typically March through April in the Philadelphia suburbs homeowners who planned projects over winter start scheduling all at once. If you’re planning a spring project, reaching out in late winter gives you a real advantage in securing a spot on the calendar.
Summer is steady and generally predictable for excavation work. Drier conditions make grading more consistent, though contractor availability gets tighter as the season progresses. Fall is actually an excellent time for grading and site preparation the ground is workable, conditions are stable, and getting the drainage right before winter freeze protects the finished work from frost heave and erosion over the cold months. Winter excavation is possible but more expensive and logistically difficult once the ground freezes, so most Haverford homeowners use that time to plan and get on a contractor’s schedule for the following spring rather than push through frozen ground.
It can, if it’s done without the right technique and preparation. That’s a legitimate concern on Haverford properties, where a significant portion of the housing stock was built before 1940. Stone foundations common on pre-war Main Line homes are more sensitive to vibration and soil disturbance than poured concrete. Excavating too close, too fast, or without understanding what’s already in the ground can cause settling, cracking, or water intrusion that’s expensive to repair.
The way to avoid that is straightforward: thorough site assessment before any equipment moves, 811 utility marking completed ahead of time, and equipment that’s appropriately scaled for the lot. Oversized machinery on a tight residential property creates unnecessary risk. Experienced operators who’ve worked on established Delaware County lots understand how to read the terrain and adjust their approach accordingly. The goal isn’t just to move the dirt it’s to move it in a way that leaves everything adjacent to the project exactly as it was.
Often, yes. A lot of drainage problems on Haverford properties come down to grade either the yard was never properly graded to begin with, or years of settling and landscaping changes have redirected how water flows across the surface. When the grade directs water toward the foundation instead of away from it, you get wet basements, pooling, and erosion. Regrading the yard to establish proper slope is frequently the most effective long-term fix.
Haverford Township sits within the Darby Creek and Cobbs Creek watersheds, and the township’s own stormwater management program acknowledges that improper grading contributes directly to flooding and erosion in this area. The clay-heavy soil throughout Delaware County makes the problem worse it doesn’t absorb water quickly, so surface drainage direction matters even more than it would in sandier soil. In some cases, regrading alone solves the problem. In others, it’s combined with drainage structures or retaining walls to manage water across more complex terrain. A site visit is the only way to know which approach your specific lot actually needs.
We handle the full project. That’s one of the more meaningful differences between working with us and hiring a dedicated excavation-only contractor. Once the site is excavated and graded, the same team can move directly into retaining walls, patio installation, outdoor kitchens, and finished landscape work no handoffs, no coordinating separate crews, no gaps in accountability when something needs to be adjusted.
For Haverford homeowners, that continuity matters more than it might in a town with newer, simpler properties. When you’re working on a historic Main Line lot with an established landscape, mature trees, and a high-value finished product in mind, the last thing you want is a situation where the excavation crew blames the hardscape crew or vice versa when something doesn’t line up. One contractor who’s responsible for the whole outcome from the first shovel to the last stone removes that problem entirely. It also means the excavation is planned with the finished project in mind from the start, not treated as a separate task that the next contractor has to work around.
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