Three paving quotes for the same 600 square foot driveway. Bidder A says 3,400 dollars. Bidder B says 4,900. Bidder C says 6,800. Most homeowners pick A, blink, and pay for the gaps in year two. The bids are not actually comparing the same job. This guide shows the spreadsheet method to compare three quotes line by line, normalize the math, find the missing scope, and ask each bidder to match the others. The asphalt quote checker automates the scoring once you have the line items typed in.
Step 1. Build the comparison spreadsheet
Open a blank sheet. Three columns on the right, one per bidder. Down the left side, list every scope line. The list below covers a clean residential job. Fill in dollar values, in-scope marks, or "silent" for any line a bidder did not mention.
- Paved area in square feet
- Compacted asphalt thickness (inches)
- Base aggregate type and depth
- Subgrade prep and soft spot repair
- Tear-out of old surface (yes/no, cost)
- Disposal and dump fees
- Drainage scope
- Edge work and apron flare
- Permit responsibility and cost
- Mobilization charge
- Sealcoating in year 1 (sometimes included)
- Warranty term and scope
- Insurance certificate provided
- Payment milestones
- Total price
If a bidder did not write any of these lines, write "silent" in the cell. Silent lines are where the cost lives.
Step 2. Normalize to dollars per square foot
Across the top row, calculate price per square foot for each bidder. Take the total, divide by paved area. This is the single most useful number on the page. The 2026 national range for new residential paving is 5 to 10 dollars per square foot, with averages near 6 to 8, figures drawn from the national 2026 cost data. The per-square-foot pricing guide covers the range in detail.
Three quick reads:
- Under 5 dollars per sq ft: Something is missing. Look at the silent lines.
- Between 5 and 10: In range. Compare the line items, not the total.
- Over 10: Either added scope or strong local market. Ask what is included.
For an installed budget on your own dimensions, plug numbers into the driveway cost calculator before the bids arrive. The cost by size table shows what a clean total looks like at 500, 1000, and 2000 sq ft.
Step 3. Identify the missing scope on each quote
Now look down the column for each bidder. Every "silent" cell is missing scope. Most paving disputes start in a silent line. The high-leverage missing items, ranked by how much they shift the total, are:
- Asphalt thickness: 2 inches vs 3 inches is a 50 percent difference in material. Bidders who say "premium asphalt" without a number usually quote thinner.
- Base depth: 3 inches vs 6 inches of crushed aggregate is the difference between a 5-year and a 20-year driveway.
- Tear-out: If your existing surface is cracked, a clean overlay only buys you 2 to 3 years. A silent tear-out line means you pay later.
- Drainage: Birdbaths and standing water cost 500 to 3,000 dollars to fix after the fact.
- Warranty: A silent warranty line is no warranty. See the warranty guide for what to insist on.
Mark each missing item with a dollar estimate using the hidden costs guide. Add the estimates to the bidder's quote. The "adjusted total" is the real comparison number.
Compacted vs loose thickness, decoded
The most abused word on any quote. Asphalt is laid loose, then rolled. Loose 3 inches compacts to roughly 2.5 inches, so "3 inch asphalt" with no qualifier hides 15 to 20 percent of the material. Insist the line read "2.5 inch compacted" or "3 inch compacted." RV and heavy-vehicle pads target 3 to 4 inch compacted. Mix density runs about 145 pounds per cubic foot, so a 600 sq ft drive at 2.5 inch compacted needs roughly 9 tons.
Step 4. Send each bidder the missing-scope list
This is the step homeowners skip. Email each bidder a short note. Use a friendly tone. Ask them to confirm in writing whether each item is included or excluded.
Sample email:
- Hi [Name], I am comparing your bid against two others.
- To compare apples to apples, please confirm whether each of these is included in your quoted price.
- [List the missing scope items]
- If any are excluded, please add them as a line-item adder so I can re-compare. Looking to decide by [date].
A real contractor responds inside 48 hours with a revised quote. A scam contractor dodges, argues the other bidders are over-engineering, or claims their original quote already covered it without saying how. The red flags list covers the dodge patterns.
Step 5. Score each bidder line by line, not total by total
After the re-quote round, score each line on a simple 0 to 2 scale.
- 0: Missing or silent.
- 1: Mentioned but vague.
- 2: Specific, with numbers or a clear yes/no.
Add the scores. The bidder with the highest score, not the lowest total, is the one writing the most defensible job. Pair the score with the credentials check from the contractor framework. The combination of high scope score and strong credentials is what predicts a 20-year driveway.
Step 6. Cross-check warranty and references
Total cost is only the first dimension. Warranty term and reference quality are the second and third. A 2-year warranty from a 15-year-old company beats a 5-year warranty from a 1-year-old company. The Better Business Bureau profile, the state license database, and 2 to 3 reference calls fill in the picture. The 12 questions to ask gives a phone script for the reference conversation.
Step 7. Run the "what could go wrong" gut check
Look at the cheapest bid one more time. Ask yourself two questions. If the soft spot in the corner needs another 4 cubic yards of aggregate, what does this contract say? If the apron drainage is wrong and you have a birdbath at year one, what does this contract say? Quiet contracts go silent on rework. Loud contracts spell out unit pricing. The paving contract checklist covers the clauses that protect you on rework.
Common pitfalls when comparing paving quotes
Five mistakes show up over and over in homeowner forums.
- Comparing the total only: The total is the marketing. The line items are the work.
- Trusting verbal scope: If it is not in the written quote, it is not in the job.
- Ignoring per-sq-ft math: The rate exposes the gap that the total hides.
- Picking before re-quoting: Bidders sharpen when asked. A first-round bid is rarely the final word.
- Buying the salesperson, not the crew: Confirm the same foreman who bid the job will run the install.
The National Asphalt Pavement Association publishes mix specs you can cite back at any bidder who hand-waves on materials. The FTC home improvement contract guide is the consumer-side backstop.
Worked example: three bids on a 600 sq ft driveway
Real numbers help. Imagine three bids for the same 600 sq ft new pour.
- Bidder A: 3,400 dollars. Per-sq-ft: 5.67. Silent on tear-out, drainage, warranty term, and base depth. Adjusted total after gaps: 5,500.
- Bidder B: 4,900 dollars. Per-sq-ft: 8.17. Lists 2.5 inch asphalt, 4 inch base, 2-year warranty, permits included. Drainage silent. Adjusted: 5,200.
- Bidder C: 6,800 dollars. Per-sq-ft: 11.33. Lists 3 inch asphalt, 6 inch base, drainage work, 5-year warranty, permits and final lien waiver included.
After scope match, A and B converge near 5,200 to 5,500. C is the premium spec with the longest warranty. The right choice depends on how long you plan to own the home. For 10-plus years of ownership, the spec gap on C is worth the price. For a 3-to-5 year sale, B's adjusted bid is the value play. A's headline price is the trap.
When the three bids do not converge
Sometimes the spread does not close. Bidder A refuses to re-quote. Bidder B promises in conversation but never sends the revised PDF. Bidder C lists every line in detail. That is a real outcome, not a problem with your process. You now have one bid you can sign with confidence and two that opted out. Pick C. Two of three was always the realistic ceiling on apples-to-apples comparisons.
Other times the bidders converge in price but not in trust. All three are inside 10 percent on adjusted total. The tiebreaker shifts to non-price signals: license tenure, the number of paved jobs they show you in the same ZIP code, whether the bidder did a real on-site visit or a drive-by, and whether the foreman on the bid is the foreman on the install. The lifespan guide shows why these signals matter more than a 200 dollar price gap.
Documenting your decision
Before you sign the contract, save three things in one folder. A copy of the final spreadsheet with each bidder scored. The signed quote from the winner. The non-winning bids. If a dispute hits in year two, the paper trail backs you up. It also helps if you sell the home and the new owner asks for the paving history. A 15-minute filing job protects you for the entire driveway lifespan.
Bottom line
Three quotes are useless without normalization. Build the spreadsheet, divide to per-sq-ft, find the silent lines, re-quote, score each line, then pick on adjusted total plus warranty plus references. The mid-range bidder with the most filled-in lines wins more often than the cheapest. For background on the cost ranges that anchor the math, the real bill breakdown shows the line items behind a clean install. Cost and base prep references are on the sources page.