- Site preparation — excavation, grading, drainage, base work — accounts for 20–35% of a well-scoped project's cost and is the most common item reduced or eliminated in lower bids on Seattle's Eastside.
- If a proposal lists materials generically ("premium pavers," "quality stone"), you cannot compare it to a proposal that names specific manufacturers, product lines, and specifications — the two documents are not speaking the same language.
- The most revealing question you can ask any landscape company is "What is not included in this proposal?" — a clear, specific answer signals transparency; hesitation signals scope gaps you will pay for later.
- A proposal that comes in 30–40% below competitors is not a better deal until you can trace the price difference to specific scope reductions, material changes, or excluded items — and decide those tradeoffs are acceptable.
- Written warranties for plants, hardscape, and workmanship should be on the proposal document itself — verbal guarantees do not survive crew changes, business closures, or disagreements about what constitutes a defect.
- Compare proposals by scope completeness, material specificity, warranty terms, and permitting inclusion first — price comparison is only meaningful after you have confirmed the proposals describe the same work.
Why Do Landscape Proposals for the Same Project Look So Different?
The variation is not a sign that someone is being dishonest. It is the natural result of different companies approaching the same property with different philosophies, different capabilities, and different standards for what constitutes complete work.
A landscape crew that primarily installs hardscape will look at your backyard and see a patio, a retaining wall, and some planting beds. A design-build company will look at the same space and see a drainage problem that needs solving before the patio makes sense, a grade change that requires engineered soil retention, a mature Douglas fir whose root zone dictates where hardscape can and cannot go, and an irrigation system that needs to account for the rain shadow created by your roofline.
Both companies will give you a number. One number includes the work you can see. The other includes the work you cannot see — the work that determines whether the visible work lasts.
### Different assumptions about site preparation
This is the single largest source of price variation between proposals in the Seattle area, and it is the one homeowners are least equipped to evaluate. Site preparation includes demolition of existing features, excavation, grading, drainage installation, soil amendment, compaction, and base preparation for hardscape. In Classic’s experience across 2,000+ Eastside landscapes, site prep accounts for 20–35% of a well-scoped project’s total cost.
A proposal that comes in significantly lower than its competitors has often reduced or eliminated site prep line items. The patio price looks great — but it assumes the existing grade is acceptable, the soil drainage is adequate, and no subsurface work is needed. On Seattle’s Eastside, where glacial till and clay soils are the rule rather than the exception, those assumptions are rarely safe.
### Different material specifications
“Pavers” is not a specification. Neither is “natural stone” or “retaining wall block.” The difference between a concrete paver rated for 8,000 PSI with a 50-year freeze-thaw warranty and a budget paver rated for 4,000 PSI is invisible on the day of installation and dramatic five winters later. The same principle applies to wall systems, drainage pipe, landscape fabric, soil amendments, and plant material.
When proposals list materials generically — “install paver patio” rather than “install Belgard Subterra Stone in Toscana color, 3-inch base setting bed over 6-inch compacted crushed rock base” — you are not comparing materials. You are comparing intentions that may or may not align with what actually gets installed.
### Different scopes of work
Two proposals can describe the same project elements and mean very different things. “Retaining wall” could mean a 2-foot gravity wall with no footer or a 4-foot engineered wall with a compacted base, geogrid reinforcement, drainage aggregate, and a perforated pipe tied to a daylight outlet. Both are retaining walls. One costs three times as much as the other. One lasts decades. The other shows movement within a few years — a pattern Classic sees regularly on Eastside properties where previous wall work was underspent.
What Should You Compare First — Before Looking at Price?
Price comparison is the last step, not the first. Before you look at the bottom line on any proposal, compare these five elements.
### Scope completeness
Read every proposal line by line and ask: does this proposal account for every phase of the project, from demolition through final cleanup? A complete scope for a typical Eastside backyard renovation should address:
- Demolition and removal of existing features — concrete, old plantings, fencing, irrigation
- Excavation and grading — getting the site to proper elevation and slope
- Drainage — surface drainage, subsurface drainage, tie-ins to existing systems or daylight outlets
- Base preparation — compacted aggregate for hardscape areas, amended soil for planting areas
- Hardscape installation — patios, walkways, walls, steps, edging, with specific material callouts
- Softscape installation — plants specified by species and size, soil preparation, mulch
- Irrigation — new zones, head layout, controller, connection to water supply
- Lighting — fixtures, transformer, wire runs, connection points
- Cleanup and site restoration — hauling, final grading of disturbed areas, temporary erosion control if needed
If any of these categories is missing from a proposal, it does not mean the work is free. It means the work is either not included — and will become a change order — or has not been considered at all.
### Material specificity
For every material listed in a proposal, you should be able to answer three questions: What is it? What size or specification? And what is the warranty or expected lifespan?
A strong proposal names the manufacturer, product line, color or finish, and dimensions of hardscape materials. It specifies plant material by botanical name, container size, and quantity. It calls out drainage pipe diameter, aggregate type and depth, and soil amendment composition.
A proposal that uses generic descriptions — “premium pavers,” “select plantings,” “quality materials” — is not necessarily deceptive. But it makes honest comparison impossible. You cannot know if two proposals are quoting the same material until both specify what material they mean.
### Design fees and what they include
Some companies include design in the project cost. Others charge a separate design fee. Neither approach is inherently better, but understanding what you are paying for matters.
A design fee that includes a scaled site plan, planting plan, hardscape layout, grading plan, drainage plan, lighting plan, and irrigation plan — with one or two rounds of revision — represents significant professional work. A “free design” that amounts to a hand-drawn sketch on graph paper during the first visit is not the same deliverable.
In Classic’s experience, homeowners who compare a $3,000–$5,000 design fee against a “free design” without understanding the scope difference are comparing a comprehensive architectural document against a rough concept. The design that costs money typically prevents far more than its fee in construction-phase problems.
### Warranty and guarantee terms
Every proposal should state, in writing, what is guaranteed and for how long. Key warranty questions:
- Plant guarantee: Is there one? For how long? Does it cover replacement at no cost, or only the plant material without labor? Classic offers a 1-year plant guarantee — meaning if a plant we specified and installed does not survive its first year under normal conditions, we replace it.
- Hardscape warranty: Is the installation warranted against settling, shifting, or drainage failure? For how long? Is this the contractor’s warranty or the manufacturer’s product warranty? These are different things.
- Workmanship warranty: Is the overall construction quality guaranteed? What is the process if something fails within the warranty period?
A proposal without written warranty terms is asking you to accept a verbal promise. Verbal promises do not survive a crew change, a business closure, or a disagreement about what “normal settling” means.
### Permitting and engineering
For projects in cities like Bellevue, Kirkland, Redmond, and Sammamish, permits are required for retaining walls over 4 feet, significant grading, drainage modifications, and work near critical areas or easements. A complete proposal specifies whether permit costs are included, who manages the permit process, and whether engineering drawings are part of the scope.
A proposal that does not mention permitting on a project that clearly requires it is either assuming you will handle permits yourself, planning to proceed without them, or has not thought it through. All three outcomes create risk for the homeowner — from stop-work orders and fines to complications when selling the property.
What Questions Should You Ask Each Company Before Deciding?
The proposals themselves will not tell you everything. These questions surface the information that separates comparable bids from bids that only appear comparable.
### “What is not included in this proposal?”
This is the most important question you can ask, and the answer is more revealing than anything written in the document. A company that answers clearly — “this does not include irrigation, lighting, or the permit fee for the retaining wall” — is being transparent about scope boundaries. A company that hesitates or says “everything is included” on a project with obvious complexity deserves follow-up.
### “What happens if you encounter unexpected conditions during excavation?”
On Seattle’s Eastside, “unexpected conditions” during excavation are more accurately described as “conditions that are statistically likely but impossible to confirm without digging.” Buried concrete, abandoned septic components, root masses, perched water tables, unsuitable fill from previous projects — Classic encounters one or more of these on roughly half of all excavation-phase work.
A responsible answer describes the company’s change-order process: how they document the condition, how they price the additional work, and how they get your approval before proceeding. A concerning answer suggests they will “handle it” without specifying how or at what cost.
### “Who manages the project day to day — and will I have a single point of contact?”
On a multi-week project involving multiple trades — grading, masonry, planting, irrigation, electrical — the quality of project management often matters more than the quality of any individual trade. Ask who your point of contact will be, whether they will be on site daily, and how communication works when decisions need to be made in real time.
A design-build company typically provides a project manager who coordinates all trades and serves as your single contact. When you hire a crew or a general contractor who subcontracts trades independently, coordination becomes either their part-time responsibility or yours.
### “Can I see a project you completed that is similar in scope to mine — and talk to that homeowner?”
References matter, but specific references matter more. A company that has built hundreds of retaining walls but has never done a project with your specific combination of challenges — steep grade, mature tree preservation, drainage to a shared easement — may not be the right fit regardless of their overall portfolio. Ask for a reference on a project with similar scope, similar site conditions, and similar budget range.
How Do You Compare Proposals When One Is Significantly Cheaper?
A proposal that comes in 30–40% below the others is not a better deal until you understand why it is cheaper. In Classic’s experience, significant price gaps trace back to a small number of causes, and none of them are “this company is just more efficient.”
Reduced site preparation. The proposal assumes less excavation, thinner base layers, no drainage, or minimal grading. This is the most common source of low bids on Eastside properties and the most expensive to correct after the fact.
Generic or lower-grade materials. The proposal does not specify materials in enough detail to know what you are getting, or it specifies materials with shorter lifespans, lower structural ratings, or no manufacturer warranty.
Smaller plant material. A 5-gallon shrub and a 15-gallon shrub of the same species are dramatically different in cost and in immediate visual impact. A proposal that specifies “install hedge” without container sizes may be pricing 1-gallon starts where the other proposal prices 5-gallon established plants.
Missing scope. The proposal excludes elements that the other proposals include — irrigation, lighting, permit management, design revisions, post-installation cleanup, or plant guarantee.
No contingency buffer. Some proposals include a small contingency for unknown conditions. Others quote to the penny and manage overages through change orders. The net cost to you may be the same or higher with the change-order approach, but the upfront number looks lower.
None of these explanations make the cheaper proposal wrong. Some homeowners genuinely prefer to handle their own permits, accept generic materials, or phase certain elements into a future year. The critical thing is to know what you are choosing — not to discover it after construction begins.
What Does a Strong Proposal Actually Look Like?
A proposal worth signing shares several characteristics regardless of which company produces it:
It is specific. Materials are named by manufacturer and product line. Plant material is listed by botanical name, container size, and quantity. Hardscape areas are quantified in square feet. Walls are measured in linear feet and height.
It is organized by phase or trade. You can see what each category of work costs independently — demolition, grading, drainage, hardscape, softscape, irrigation, lighting — rather than a single lump sum for “landscape renovation.”
It addresses the invisible work. Site prep, drainage, base preparation, and soil amendment are itemized rather than buried or omitted. These items are not glamorous, but they are what separate a landscape that performs for 20 years from one that needs repair in 5.
It states exclusions clearly. A trustworthy proposal tells you what it does not include, so you can plan and budget for those items separately or negotiate them into scope.
It includes a timeline. When does work start? How long will each phase take? What is the expected completion date? What conditions could delay the schedule?
It puts the warranty in writing. Plant guarantee, hardscape warranty, workmanship warranty — all stated on the document, not promised verbally.
