How to Compare Landscaping Bids — and Weed Out Scammers Before You Start

Of all the home improvement trades, landscaping has the highest concentration of door-to-door scammers. The BBB logged 81,925 home improvement scam reports in 2024 with a median loss of $1,800, and landscaping is among the most frequently cited categories. Before you compare prices, the first question is whether all three people quoting you are legitimate contractors.

Once you've verified the contractors, comparing landscaping bids is its own skill. Material grades, base depths, drainage specs, and permit handling are all variables that can swing a project cost by thousands without appearing anywhere in the headline number. Here is how to do both.

Should landscaping contractors be licensed?

In most states, yes — for any work above a dollar threshold. California requires a C-27 Landscaping Contractor license for any job over $500. Hardscape, grading, and irrigation work often trigger additional licensing requirements even in states with looser rules for basic lawn maintenance. Verify your state's requirements before assuming a license isn't required.

Landscaping licensing is not uniform. What counts as landscaping that requires a license in one state may be unregulated in another. Hardscape work — patios, retaining walls, outdoor stairs — often falls under general contractor or masonry licensing rather than a specialty landscaping classification.

Irrigation installation may require a separate plumbing license in some states, regardless of what the landscaping contractor claims. Verify what your state requires independently before accepting a contractor's word that they're covered.

• The "no license required" claim from a contractor is worth verifying independently with your state board.
• Licensing ambiguity is exactly what scammers exploit — they rely on homeowners not knowing the rules.
• California's C-27 license applies to any landscaping job over $500, one of the lower thresholds in the country.

How do I verify a landscaping contractor's license?

Search your state's contractor licensing database using the contractor's business name or license number. For landscaping, check both the specialty classification and any general contractor license they claim. Also check for disciplinary history — an active license with open complaints is not a clean record.

State licensing databases are free and public. What to look for: license status (active vs. expired or suspended), expiration date, the classification that covers the work being done, and any disciplinary history. Most homeowners stop at license status and miss the disciplinary record entirely.

Tools like CheckLicensed.com let you search license status and complaint history simultaneously, rather than navigating each state board separately. Legitimate contractors welcome this — they'll give you their license number upfront. A contractor who hesitates when you ask for it is a red flag.

Verification comes before bid comparison, not after. Once you've confirmed all three contractors are licensed and have clean records, then move to evaluating the numbers with our bid comparison tool. See also: red flags to watch for in any contractor.

How many bids should I get for landscaping work?

Get three written, itemized quotes minimum. Landscaping projects have more scope variables than most trades — plant selection, base depths, drainage routes, and permit handling can all differ between bids. Two bids leave you without a reference point. Three gives you enough to identify an outlier and ask the right follow-up questions.

Landscaping projects routinely run $4,500–$22,500 depending on scope, which makes three bids worth the scheduling effort. A $2,000 difference in normalized bids is meaningful; you need three data points to see whether that difference reflects scope or price.

Written bids only. Verbal estimates in landscaping are especially risky because the scope is complex — a contractor can verbally describe a project and then invoice for something substantially different. Everything must be in writing before you sign anything.

• Scammer signature: refusing to provide a written bid or pressuring a same-day decision.
• Request a minimum one-week consideration period — any legitimate contractor will agree.
• All three quotes should be gathered within one to two weeks to reflect the same market conditions.

What should be included in a landscaping estimate?

A complete landscaping estimate must itemize: plant material with species and size, base depth for any hardscape, drainage outlet location, permit costs, cleanup and debris hauling, irrigation specifications, and a plant warranty period. Any estimate that omits these line items will produce change orders — the "cheap" bid becomes the expensive one at final invoice.

Plant material must name species, pot size (in gallons), and warranty period. Nursery-grade plants typically carry a one-year warranty; wholesale plants may carry none. "Ornamental grasses" without species or size is a substitution invitation — the contractor can swap in whatever is cheapest at the nursery that week.

Base depth for hardscape is the most commonly hidden cost in the industry. The standard is 4–6 inches of compacted gravel under any patio or retaining wall. A bid that doesn't specify base depth is almost certainly skimping on it — and a patio on a thin base fails in three to five years.

• Drainage: specifications must name the outlet location. "Proper drainage included" without a named outlet is not a spec.
• Permit costs: hardscape, grading, and irrigation often require permits; bids that omit this will upcharge later.
• Debris hauling: frequently separately invoiced despite verbal "included" language — get it confirmed in writing.
• Plant warranty: ask for it in writing even if the contractor described it verbally.

For more on what a complete estimate must include, see our guide on red flags in the estimate itself.

Why are landscaping bids so different from each other?

Landscaping bids vary because contractors include different materials, different base depths, different plant grades, and different scope — often without flagging those differences in the quote. A patio bid excluding proper base prep can look $2,000 cheaper while setting up a $3,000 repair in three years when the surface settles.

Scope exclusions are the dominant cause of bid variance, not dishonesty — though that exists too. When you see a gap, assume scope differences and request itemized breakdowns before drawing conclusions about who to trust.

Plant grade substitution is common. Without species and size specified, a contractor can swap in whatever is cheapest at the nursery. The same substitution risk applies to trees, shrubs, groundcover, and bulk materials like mulch and gravel.

• Base depth variance: 2-inch base vs. 6-inch base is a dramatic difference in cost and longevity that is invisible in a lump-sum bid.
• Permit handling: some contractors pull permits; others leave it to the homeowner; others don't mention it at all.
• Regional labor rate variance is real — the same project costs more in San Francisco than in Memphis.

This pattern is consistent across trades. Read more about why landscaping bids vary so much and how to respond when you see a significant gap.

How do I compare landscaping quotes apples to apples?

Build a line-item comparison matrix. Use the most detailed bid as your baseline and check whether each competing bid includes every item. Request itemized revisions from any contractor who submitted a lump sum. Add missing scope back at market rates to normalize the total. The bids will converge far more than their headline numbers suggest.

Request written itemized revisions from any contractor who gave you a lump-sum quote. Most legitimate contractors will provide one if asked directly. Frame it simply: you're comparing all three bids line by line and need a breakdown to do that fairly.

Normalize every bid across these five dimensions before comparing totals:

• Plant specs: same species, pot size, and warranty period
• Base depth: same compacted gravel depth for all hardscape
• Drainage: outlet location specified for each bid
• Permits: included or excluded consistently across all three
• Debris hauling: confirmed in writing, not just verbally

When bids are genuinely comparable after normalization, choose based on verified license status, complaint history, and references — not price alone. A $500 difference after normalization is not a meaningful signal. A $3,000 difference still is.

What are red flags in a landscaping bid?

Red flags: verbal-only quote, same-day decision pressure, no permit discussion for hardscape or grading, no base depth specification on patios or walls, plant material not named by species or size, debris hauling described as "included" with nothing in writing, and no plant warranty stated. Scammers count on homeowners not knowing to ask these questions.

Same-day pressure is the single most reliable scammer indicator across all trades. Legitimate landscapers have full schedules and don't need your answer today. Any contractor who makes you feel like you'll lose the deal if you don't sign now is someone you should not hire.

A cash-only payment request is an automatic disqualifier. No legitimate contractor requires full payment in cash upfront. A deposit is normal — typically 10–30% — but full cash payment before work begins is not standard practice.

• No permit discussion on hardscape or grading: the contractor either won't pull them (leaving you liable) or doesn't know they're required.
• The "no license required" claim: verify this independently with your state's licensing board before accepting it.
• Door-to-door solicitation: not disqualifying on its own, but combined with any other flag, walk away.

Should I always go with the lowest landscaping bid?

No. In landscaping, the lowest bid is almost always the one with the thinnest base, the lowest plant grade, or the most permit and cleanup scope excluded. Once you normalize all bids to the same spec, choose based on the contractor's verified license, complaint history, and process — not the headline number.

The cheapest patio often fails in three to five years. Insufficient base prep is invisible until the surface starts to settle, heave, or crack — and by then, the contractor is long gone and the repair cost is yours entirely. Plants installed without a warranty that die in the first season represent another hidden cost that surfaces after you've paid the final invoice.

The same principles apply across every trade. See our guide to comparing painting contractor bids for a parallel example of how scope exclusions distort headline prices.

Ready to evaluate your landscaping bids? Use our bid comparison tool to assess the contractors and numbers side by side before you commit.