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Grading &
Site Preparation
Northern California

Proper grading is the difference between asphalt that lasts 25 years and asphalt that fails in 5. We've been preparing sites across Northern California for over 30 years.

30+ Years Experience
BBB Accredited A+
Licensed & Insured
Free Estimates
Owner On Every Job

Expert Grading & Site Preparation in Northern California

Every paving job is only as good as the ground beneath it. Bay Area Grading & Paving has built its reputation on meticulous site preparation — cutting, filling, compacting, and draining land properly before any asphalt or concrete goes down. Owner Shawn Peterson has seen what happens when grading is done poorly — and he won't let it happen on his jobs.

What Is Grading & Site Preparation?

Grading is the process of reshaping, leveling, and compacting soil and base materials to create a stable, properly drained surface. For paving projects, this includes removing existing vegetation or pavement, cutting high spots, filling low spots, installing drainage features, and compacting Class 2 aggregate base to create a firm, uniform foundation that won't settle, shift, or crack under the weight of vehicles and weather.

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Same-day response available. Owner Shawn personally reviews every project.

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  • Sonoma, Marin & Napa Counties
  • Residential & commercial
  • Licensed, insured & bonded
  • BBB Accredited A+
  • 100+ five-star reviews

Grading & Site Preparation Services

Raw land grading for new driveways & parking lots
Subgrade preparation & soil stabilization
Class 2 aggregate base — properly compacted
Drainage swales, French drains & catch basins
Commercial site grading — all scales
Retaining wall prep & slope stabilization
Demolition of existing asphalt or concrete
Cut & fill balancing to control material costs

Our Grading & Site Preparation Process

01

Site Survey & Planning

We walk the site with you, identify drainage challenges, existing utilities, and grading requirements. Complex sites may require a grade stake survey.

02

Clearing & Demolition

Removal of vegetation, tree stumps, old pavement, or debris. We haul all material off-site and dispose of it properly.

03

Cut & Fill

High spots are cut down, low spots are filled with engineered fill material. We balance cut and fill when possible to minimize material costs.

04

Drainage Installation

French drains, drainage swales, catch basins, and outlet pipes installed as needed to keep water off and away from your paved surface.

05

Base Rock Placement & Compaction

Class 2 aggregate base is spread and compacted in lifts using our vibratory plate compactors and rollers. We test compaction before paving proceeds.

06

Final Grade Check

We check finished grade against plan elevations and confirm positive drainage to all outflow points before paving begins.

Grading & Site Preparation — Cities We Serve

Click your city for a dedicated grading & site preparation page with local pricing information and project examples.

Frequently Asked Questions

Can you grade a sloped or hilly driveway?

Absolutely — it's one of our specialties. Northern California's hilly terrain means we do a lot of sloped grading. We'll design proper drainage and grade transitions for your site.

Do I need grading even if I'm repaving an existing driveway?

Usually yes — at minimum we need to check and correct the subgrade. If water has been pooling on your current driveway, that's a grading problem that needs to be fixed before new asphalt goes down.

How deep does the base need to be?

Residential driveways typically need 4"–6" of compacted base. Commercial and heavy-load areas may need 8"–12". We size it for your specific conditions.

Can you install drainage at the same time?

Yes — and it's much more cost-effective to do drainage and grading together rather than adding it later.

Get a Free Grading & Site Preparation Estimate

No pressure, no obligation. Owner Shawn Peterson personally reviews every estimate and responds within 1 business day.

Call (707) 529-8559