Site prep and grading in Redmond, WA involves clearing, cutting, filling, and compacting the ground to create a stable, properly sloped base before new asphalt goes down. This service is for new construction needing a paving-ready site, or existing lots and driveways where poor grading is causing drainage problems or premature pavement failure. Because asphalt is only as durable as the base beneath it, getting the grade and compaction right up front determines whether the pavement lasts or fails early.
What This Service Involves
This includes clearing the site, cutting and filling earth to reach the correct grade and slope for drainage, compacting the subgrade to the density needed to support traffic loads, and building a proper aggregate base layer ready for asphalt installation.
When Needed
New construction requiring a paving-ready site, an existing lot or driveway with standing water or drainage issues, or a surface that's cracking and sinking due to a poorly graded base underneath are all common reasons.
Why Problems Happen
Redmond's wet climate means poor grading doesn't just cause puddles — it lets water pool and seep into the base beneath the pavement, softening it over time. A site graded without proper attention to drainage risks the very pavement it's meant to support, since asphalt laid over a weak base will crack and fail regardless of how well the surface itself is installed.
What Affects Cost
Site size, how much cutting and filling the grade requires, current soil conditions, drainage complexity, and whether existing pavement or hardscaping needs to be removed first all factor in.
What to Expect
Grading and compaction happen before any asphalt goes down — a required step, not an optional one — followed by base installation, testing, and final grading to confirm the site is ready for paving.
Frequently Asked Questions
Do I need site prep even if my lot looks flat?
Yes — a flat-looking lot can still have poor drainage or an unstable subgrade underneath that isn't visible until water starts pooling or the surface begins to settle under load. Proper grading and compaction address what's beneath the surface, not just what you can see.
How does drainage factor into site prep?
Grading determines where water goes once it hits the ground — done right, it directs runoff away from the pavement and building foundations instead of letting it pool and seep into the base. Skipping proper drainage planning during site prep is one of the most common reasons pavement fails early.
Can site prep be done without disturbing the rest of my property?
We aim to keep disturbance contained to the work area itself — using equipment sized appropriately for the job and staging materials efficiently so grading and compaction don't spread further into your yard or landscaping than necessary.
How long does site prep take before paving can start?
Typically a few days, depending on lot size, current soil conditions, and how much cutting, filling, or drainage work is needed. Larger commercial sites or lots with poor existing drainage take longer than a small, already-graded residential driveway.