How Much Does a Custom Pool Cost in the Tri-Cities, WA? A Real Breakdown
Updated: Sep 18
One question comes up before almost any other when homeowners start thinking about a pool: "How much will it cost?" Search online and you'll mostly find national averages and vague ranges that say "it depends" without explaining what it depends on. This guide walks through what actually drives the price of a custom pool in the Tri-Cities, so you can plan with realistic expectations and compare quotes with confidence.
Why Custom Pool Pricing Is Hard to Pin Down
A custom pool is exactly that: custom. Two pools with the same footprint can differ widely in price depending on the construction method, the site, the finish, the equipment and everything built around the water. That's why a responsible builder won't quote a number until they've seen your yard and talked through what you want.
Common questions homeowners ask before getting quotes:
What is actually included in a pool quote?
Why do two builders quote very different prices for what sounds like the same pool?
Which upgrades are worth it, and which can wait?
How much should I budget for decking, landscaping and equipment?
The Variables That Drive Pool Cost in the Tri-Cities
Eastern Washington has its own mix of soil, weather and permitting requirements, and each one shows up in a pool budget.
Soil and Site Conditions
Excavation: Sandy and silty soils dig easily in some neighborhoods, while rock or hardpan in others adds time and equipment.
Slope and access: Sloped lots, tight side yards and limited equipment access can add retaining walls, grading or extra labor.
Spoils and drainage: Hauling excavated soil and planning drainage away from the pool and house are real line items.
Construction Type
ICF concrete: A fully custom shape and size with insulated walls that cut long-term heating costs.
Fiberglass: A factory-built shell that installs quickly, with the price largely set by the model you choose.
Vinyl liner: Often the lowest upfront finish cost, with a future liner replacement to plan for.
Size, Depth and Shape
Larger footprints need more excavation, concrete and finish material.
Deeper pools and custom depth profiles add structure and excavation.
Complex freeform shapes and raised walls take more labor than simple rectangles.
Finishes and Features
Surface: EcoFinish coating, Renolit PVC membrane and vinyl liners each carry different costs and lifespans.
Features: Tanning ledges, spas, benches, lighting and automatic covers all add to the budget.
Heating: Heat pumps and gas heaters differ in both purchase price and operating cost.
Permits and Inspections
Pools in Kennewick, the Tri-Cities, Grandview, Walla Walla and unincorporated parts of Benton, Franklin, Yakima and Walla Walla counties require building permits and inspections.
Electrical and mechanical permits are often needed for pumps, heaters and lighting.
Safety barrier requirements can add fencing or gates if your yard doesn't already comply.
Decking and Hardscape
A pool with a simple deck costs far less than a pool with full hardscape, retaining walls and landscaping.
Concrete decks need proper base preparation and jointing to handle freeze-thaw cycles.
Outdoor kitchens, pergolas and other outdoor living areas are often phased in over time.
How Construction Type Shapes Your Budget
Rather than quote a number that means little without context, here's how the three main options compare in the Tri-Cities.
ICF Concrete Pools
ICF mono-pour pools are fully custom and involve the most construction steps: excavation, forming, a continuous concrete pour, plumbing, equipment, finish and decking. The upfront investment is higher than a basic pool, but the insulated walls can reduce heating costs by up to 60% compared with conventional pools, which adds up over years of cool Eastern Washington springs and falls.
Fiberglass Pools
A San Juan fiberglass shell arrives finished, so installation is shorter and the price is driven mostly by the model, delivery, crane set, backfill and decking. Fiberglass is a strong fit for homeowners who want a quick install and low surface maintenance.
Vinyl Liner Pools
Vinyl liners can lower the finish cost of a new pool, including on an ICF structure. The trade-off is that liners wear over time and will eventually need replacing, so it's worth budgeting for that future cost.
What's Included and What Costs Extra
A clear quote should spell this out line by line. If it doesn't, ask.
Typically included:
Excavation and pool structure
Plumbing, filtration and basic equipment
Interior finish
Permits and inspections
Startup and initial water balancing
Often priced separately (ask first):
Decking beyond the basic pool perimeter
Landscaping, retaining walls and major grading
Heating, automation and automatic covers
Fencing to meet safety barrier requirements
Outdoor kitchens, pergolas and other outdoor structures
Always request a detailed, written scope. Vague pricing is where surprises come from.
Why Cheap Pools Cost More Over Time
The lowest quote isn't always the best value, and it's often the opposite. Red flags for underpriced quotes:
Vague or incomplete scope of work
No mention of permits or inspections
Undersized equipment to hit a price
No plan for drainage, base preparation or winterization
Pressure to sign quickly
A pool built to handle hot summers and freezing winters costs more to do right, but it saves money on repairs, energy and early replacement.
Timing Affects Cost (Plan Ahead)
Most Tri-Cities families want to be swimming by summer, so spring is the busiest time to start. Planning in the fall and winter gives you time for design, permits and scheduling, and puts your project in line before the spring rush.
How to Evaluate Pool Builder Quotes
Two quotes at different prices don't necessarily mean one is wrong. They may include different scopes, equipment or finishes. Questions to ask:
What's included in excavation and site prep?
Which equipment brands and sizes are you using?
What interior finish is included, and what warranty comes with it?
Who handles permits and inspections?
Is decking included, and how much?
Is the contractor registered, bonded and insured in Washington?
You can verify any Washington contractor's registration, bond and insurance through the Department of Labor & Industries before you sign.
Long-Term Value: What a Pool Really Costs
The construction price is only part of the picture. Heating, chemicals, electricity, maintenance and eventual resurfacing all add to the cost of ownership. An insulated ICF shell, efficient equipment and a durable finish like EcoFinish, which can lower chemical use by up to 40%, all reduce what you spend year after year.
At Radiant Builders, we price every project around the quality it takes to perform in Eastern Washington, and we walk you through each line item. Every project starts with:
A free consultation
A 3D design of your pool in your own backyard
A detailed, itemized quote
One contractor managing the job from design to finish
Ready for an Accurate Quote on Your Tri-Cities Pool?
If you're considering a custom pool in Kennewick and the Tri-Cities, Grandview and the Lower Yakima Valley, or Walla Walla, we'd be glad to help you understand real pricing for your yard. Schedule a free consultation today.
Get in Touch
Phone: (509) 788-5620
Email: josh@radiantbuilders.com
Comments