The lowest bid on a commercial paving project is rarely the best value. A parking lot paved over a failed base, without proper compaction, or by a contractor without active insurance doesn't just fail faster — it creates a liability chain that follows the property long after the contractor has moved on.
San Jose's commercial real estate market includes some of the highest-density office parks, industrial facilities, and retail centers in Northern California. The demand for qualified paving contractors is high, and so is the variation in quality. Property managers and asset managers overseeing commercial portfolios need a structured way to evaluate contractors — not just compare prices.
This guide covers the credentials that are non-negotiable under California law, the technical questions that separate capable contractors from the rest, and the contract terms that protect the property owner when something goes wrong. It is written specifically for commercial decision-makers managing large-scale parking lots, industrial yards, office campus infrastructure, and multi-building properties.
Talk to EARTHTEK about your project.
How do I verify a paving contractor's license?
Look the contractor up on the California Contractors State License Board (CSLB) license check and confirm three things: the license is active, the business name matches the bid, and the classification fits the work. Do this before you compare prices, because an unlicensed or mismatched bid is not comparable to a licensed one.
A few facts worth knowing before you search:
- California requires a contractor license for construction work valued at $1,000 or more, and CSLB says that figure includes labor, materials and all other project costs. A commercial parking lot job is far above it.
- The license record shows the status, the classification, the bond on file and the workers' compensation status. Read the record itself rather than a copy the contractor gives you.
- The contractor bond is $25,000 under current CSLB rules. It protects customers and workers under the license. It is not a substitute for insurance and not a cap on what a project can cost you.
License and insurance check
| Check | What to look for | Source |
|---|---|---|
| License is active | Search the contractor on the CSLB license check. Confirm the status is active and the name on the license matches the bid and the contract. | CSLB |
| Classification fits the work | Match the classification to the scope. C-12 (Earthwork and Paving) includes mixing, fabricating and placing paving and other surfacing materials. C-32 (Parking and Highway Improvement) covers protective coatings, vehicle stops, markers and signs, and CSLB states that it excludes re-paving. A striping or sealcoating bid can sit under a different class than a repave. | CSLB C-12, C-32 |
| Bond | The license record shows the bond on file. The current contractor bond is $25,000. | CSLB bond requirements |
| Workers' compensation | The record shows whether the contractor carries coverage or has filed an exemption. A contractor with employees on your lot should carry coverage. | CSLB license record |
| General liability insurance | Ask for a certificate of insurance that shows the limit and policy dates. Check it against what your lease, lender or insurer requires, and ask to be named as additional insured if they require it. Do not accept verbal confirmation. | Certificate of insurance |
| Local requirements | Confirm any city business license, permit or prevailing wage rule that applies to your property. Public projects have extra requirements. | Your city; verify per site |
Your property manager, attorney or insurance broker can confirm what your project requires.
What to Ask Before Requesting a Bid
A contractor who cannot answer these questions clearly before bidding will not manage a large commercial project reliably. Ask all of them before inviting a bid:
1. Commercial Project Experience
Ask specifically for references on commercial projects of comparable scale — parking lots, warehouse yards, industrial facilities, or office campus infrastructure. A contractor with a strong residential portfolio is not automatically qualified for a 50,000-square-foot commercial lot. The traffic loads, drainage requirements, base specifications, and ADA compliance obligations are categorically different. Ask for project addresses you can drive by, and verify the work was done within the last three to five years.
2. Subbase and Compaction Approach
The surface asphalt is only as durable as what's underneath it. Ask how the existing base is evaluated and how compaction is checked. For reference, the Caltrans Standard Specifications require each aggregate base layer to be compacted to at least 95 percent relative compaction (section 26-1.03E), tested under California Test 231, in layers no thicker than 0.50 foot (about 6 inches). Private lots follow their own plans and specifications, so ask which standard the bid uses and whether compaction is tested or judged by the operator. A contractor who cannot speak to base preparation in specific terms is pricing a surface job on a foundation problem.
3. Lift Count and Asphalt Thickness
A bid should state the number of lifts and the thickness of each. Under the Caltrans Standard Specifications, Type A hot mix placed in more than one lift must be at least 0.15 foot (about 1.8 inches) per lift (section 39-2.02C), and a compacted lift under method compaction cannot exceed 0.25 foot (3 inches) (section 39-2.01C(15)(b)). Total thickness depends on the strength of the soil under the lot and the traffic it carries, so a design that suits a car lot will not suit a loading yard. The Minnesota Asphalt Pavement Association design guide shows thickness changing with both. Ask the contractor for the design basis behind the asphalt thickness they quote.
4. Drainage Plan
San Jose's winter rain season creates real drainage stress on improperly graded lots. Ask how the contractor plans for water runoff, whether the existing drainage infrastructure is adequate for the new surface, and whether any permitting is required for drainage modifications. A reputable contractor will identify drainage issues during the site assessment — not after the pavement is down. See EARTHTEK's guide on drainage planning and pavement failures in San Jose for a detailed look at how drainage decisions affect long-term performance.
5. ADA Compliance Scope
For any commercial lot, confirm that the bid explicitly includes ADA-compliant stall count, dimensions, access aisle striping, signage, and slope grading in the accessible areas. These are not optional additions — they are legal requirements. Contractors who treat ADA compliance as a separate line item or leave it unaddressed in the scope are either unaware of the requirements or pricing it out to win the bid. Neither is acceptable. For a full breakdown of what California requires, see the post on ADA parking stall requirements in California.
Two more questions to ask:
- Who will be on site as the foreman, and what crew and equipment will you use?
- Who handles ADA layout and striping?
Red Flags That Disqualify a Contractor Before the Bid
These are not negotiating points. Any one of them is a reason to stop the conversation:
- No verifiable CSLB license, an inactive or suspended license, or a classification that does not fit the work.
- Cannot produce a certificate of insurance on request, or the certificate does not name your company as additional insured
- Bid arrives without a written scope of work, or the scope is vague on materials, thickness, or base prep
- Significantly lower price than all other bids, with no explanation for the difference — the gap is almost always in base prep, material quality, or compaction
- No commercial references available, or references that cannot be verified or contacted
- Pressure to sign quickly, or to pay a large amount before work starts, with no milestone schedule.
- Resistance to permit pulling, particularly for projects involving ADA modifications, drainage changes, or curb cuts
The "fly-by-night" problem is real in the Bay Area paving market. Unlicensed operators solicit commercial work, underbid licensed contractors, and either disappear after a deposit or deliver work that fails within a season. The CSLB license check takes two minutes and eliminates this risk entirely.
How do I compare commercial paving bids, and what should a scope of work include?
Compare scope before price. Two bids are only comparable when they cover the same area, base preparation, materials, thickness, number of lifts, striping, traffic control, schedule, warranty and payment terms. A low bid that leaves items out usually costs more after change orders.
| Bid item | What to confirm in writing |
|---|---|
| Area and plan | Square footage, a site plan or marked drawing, and which areas are in or out. |
| Prep and base repair | How failed base is found, who decides, and how extra base repair is priced (unit price per area, not a surprise). |
| Materials and thickness | Mix type, thickness per lift and total thickness. |
| Number of lifts | One lift or more, and the thickness of each. |
| Drainage and slope | What is included, and what is excluded. |
| ADA and striping | Accessible stalls, aisles, signs and markings, and any slope work. |
| Traffic control and closures | Phasing, signs, barricades and the number of days each area is closed. |
| Schedule and weather | Start window, duration and what happens in a delay. |
| Warranty | Length, what is covered and excluded, and how a claim is made. |
| Payment terms | Milestones tied to completed work, retainage and the final walkthrough. |
| Exclusions and change orders | A list of what is not included and how changes are approved and priced. |
Ask each bidder to price the same scope. If one bid is much lower, ask which line item is missing.
What drives commercial paving cost, and how do I budget?
Commercial paving cost is driven by the size of the lot, the condition of the base, the thickness and number of lifts, drainage and grading work, site access, traffic control and the schedule. Budget by price per area for each task, then plan for repair work that only shows up once old pavement is opened.
Common cost drivers include:
- Area
- Base condition and repair
- Thickness and lifts
- Drainage and slope
- ADA and striping scope
- Phasing and closures
- Mobilization and access
- Weather window
- Ask for unit pricing on base repair so extra areas have a known price before work starts.
How do I check references and past commercial work?
Ask for three to five similar commercial projects, call at least two references, and visit a completed lot if you can. Ask whether the job finished on schedule, whether the final price matched the bid, and how the contractor handled problems after the work was done.
- Ask how old each project is, and prefer lots of similar size, traffic and use.
- Ask a reference about communication, the crew on site, tenant disruption and punch-list follow-up.
Contract Terms That Protect the Property Owner
Price and timeline are only two of the terms that matter in a commercial paving contract. Before signing, confirm the following are explicitly addressed:
Scope of Work in Writing
The contract should specify: total area to be paved, existing surface removal method (mill and overlay vs. full removal), base repair scope, lift count, asphalt mix type and thickness per lift, drainage plan, ADA compliance details, and striping specifications. Anything agreed verbally but absent from the written contract does not exist legally.
Material Specifications
For commercial lots in the San Jose area, polymer-modified asphalt mixes provide better heat resistance during summer months and better flexibility during the rainy season than standard mixes. Ask the contractor to specify the mix design in the contract. Caltrans-approved materials are the benchmark for quality in Northern California.
Milestone-Based Payment Schedule
Never pay in full upfront. A standard commercial paving contract should tie payments to project milestones: a reasonable deposit at signing, a progress payment after base prep and compaction testing, and the final payment after completion and your walkthrough inspection.
What warranty should I expect, and what should be in writing?
A workmanship warranty should be in the contract, with its length, what it covers and excludes, who honors it and how to make a claim. Warranties generally do not cover damage from outside causes such as oil, heavy loads or other contractors' work, so read the exclusions.
Ask for this in writing:
- Length
- Covered and excluded items
- Who honors it
- Claim steps
- Whether it transfers to a new owner
Permit Responsibility
For commercial projects in San Jose involving ADA modifications, curb cuts, or drainage changes, permits are required. The contract should specify that the contractor is responsible for obtaining all necessary permits before work begins. If the contractor asks the property owner to pull permits, that is a liability transfer, not a standard practice.
How are disputes handled?
Most disputes are avoided with a written scope, signed change orders and a clear punch-list and warranty process. Agree up front how problems are reported, how quickly the contractor responds and what happens if the parties disagree. Have your own attorney review the contract terms.
- Written scope and signed change orders before added work.
- A final walkthrough and a punch-list with dates.
- How a warranty claim is made and who to contact.
How long does the work take, and how do I keep the lot open?
Duration depends on lot size, the repair scope and the weather. Large lots are usually done in phases, so part of the lot stays open while another part is closed. Ask for a written phasing plan that shows which areas close, on which days and for how long. For more ways to keep tenants and customers moving, see how to minimize business disruption during a commercial paving project.
- Ask about night or weekend work for businesses that cannot close, and what it costs, if anything.
- Ask how tenants and customers are notified, how accessible parking and entrances are kept, and who the on-site contact is.
Asphalt pavements are commonly designed for a 20-year design period (Minnesota Asphalt Pavement Association, Asphalt Paving Design Guide). How long a lot actually lasts depends on its base, traffic, drainage and maintenance. If your lot is already showing wear, our asphalt repair guide explains when repair is enough and when it isn't.
Caltrans sets minimum temperatures for placing hot mix that rise as the layer gets thinner. For conventional Type A hot mix with an unmodified binder, the Caltrans Standard Specifications (section 39-2.02C) call for at least 45°F air and 50°F surface temperature in lifts of 0.15 foot (about 1.8 inches) or thicker, and at least 55°F air and 60°F surface temperature in thinner lifts. Modified binders and warm-mix technology allow somewhat lower limits. Caltrans also does not allow hot mix to be placed on wet pavement or a frozen surface (section 39-2.01C(1)). Private lots follow their own specifications, so ask which temperature limits your contractor works to.
For general contractors: what should I look for in a paving subcontractor?
A general contractor should look for schedule reliability, coordination with grading and inspections, insurance that meets the prime contract, a clear change order process and complete closeout documents. Paving is one of the last trades on site, so its delays land on the project's final dates.
- Schedule: can the sub hold a start date, and what is the plan if earlier trades run late?
- Coordination: grading tolerance, compaction testing, inspections and utility adjustments.
- Insurance: certificate limits and additional insured requirements from the prime contract.
- Changes: written change orders with unit prices before extra work starts.
- Closeout: warranty letter, material tickets, test results and as-built striping.
General contractors can request a bid through our contact page.
Contractor Vetting Checklist
Use this checklist before approving any contractor for a commercial paving project in San Jose:
| Vetting Checkpoint | What to Verify |
|---|---|
| Commercial References | Ask specifically for commercial projects of similar scale — parking lots, industrial yards, office campuses. |
| Written Scope of Work | Should specify material thickness, lift count, compaction method, base prep, and drainage plan. |
| ADA Compliance Included | Confirm striping, accessible stall count, and slope grading are scoped — not billed as add-ons. |
| Warranty Terms | Get workmanship warranty in writing. |
| Permit Responsibility | Confirm who pulls permits for curb cuts, drainage, or ADA work. Should be the contractor. |
Frequently Asked Questions
What license does a paving contractor need in California?
A contractor needs an active California license in a classification that fits the work for projects of $1,000 or more, including labor and materials. C-12 covers earthwork and paving. Check the license, classification, bond and workers' compensation status on the CSLB license check before you compare bids.
What should I compare when I get several paving bids?
Compare the scope first: area, base repair, materials, thickness, lifts, striping, closures, schedule, warranty and payment terms. Price only means something when each bid covers the same work. Ask each bidder to price the same written scope.
How thick should commercial asphalt be in San Jose?
It depends on the strength of the soil under the lot and the traffic it carries, not on one number. A lot for cars needs less asphalt than a yard for loaded trucks. Ask your contractor for the thickness, the number of lifts and the design basis, and compare them across bids.
When is the best time to pave a commercial lot in San Jose?
Hot mix needs the right weather to compact properly. The Caltrans specification sets minimum air and surface temperatures that rise for thinner lifts, and it does not allow hot mix on wet pavement or a frozen surface. Ask your contractor which limits they follow and how they handle a weather delay.
How do I keep my lot open during paving?
Ask for a written phasing plan that closes one section at a time, with dates for each area, tenant notice and a named on-site contact. Large lots are often done in phases, and some work can be scheduled outside business hours.
What should a paving warranty cover?
It should state its length, what is covered and excluded, who honors it and how to file a claim, in writing in the contract. Ask about exclusions such as oil damage and heavy loads, and whether the warranty transfers to a new owner.
What should a commercial asphalt paving contract include?
A complete commercial paving contract should specify: total area to be paved, method of existing surface removal, base preparation and compaction standards, lift count and asphalt thickness per lift, mix type, drainage plan, ADA compliance scope, striping specifications, milestone-based payment schedule, workmanship warranty terms, and permit responsibility. Any of these items missing from the written contract is a gap in your protection as a property owner.
The Right Contractor Is a Risk Management Decision
A commercial parking lot is not a discretionary asset. It handles daily vehicle and foot traffic, carries ADA compliance obligations, and directly affects the liability profile of the property. Choosing a paving contractor based on price alone — without verifying credentials, reviewing scope, and confirming insurance — transfers the risk from the contractor to the property owner.
The vetting process described in this guide takes less time than recovering from a failed installation. A licensed, insured, experienced commercial contractor in San Jose will welcome every one of these questions. One who doesn't is answering the most important question for you.
EARTHTEK is a licensed commercial paving contractor in San Jose. Request a commercial project assessment or a bid comparison.
