Services
Hardscaping in Kent & Greater Seattle
Quick answer
Blue Landscaping Services builds retaining walls, paver patios, walkways, driveways, outdoor steps, seating walls, fire features and water features across South King County. All hardscape work is self-performed by our own crew under Washington contractor license BLUELLS880K2 — no subcontractors on the build.
Hardscaping is the part of a yard that has to survive Puget Sound winters. A patio that was never compacted properly will telegraph every rut by its second February. A wall built without drain rock and a drain line behind it becomes a hydrostatic pressure problem, not a landscape feature. Most of the repair work we get called into is the result of one of those two shortcuts.
We build the base the way it should be built: excavate to competent soil, lay and compact crushed rock in lifts, and give water somewhere to go before it finds its own route. That is unglamorous and it is most of the cost, and it is the entire reason a install still looks right after ten winters.
Design and construction both happen in-house. You are not paying a separate design fee, waiting on a landscape architect, and then handing the drawings to whichever crew bid lowest. The people who draw it are the people who build it, which means what gets drawn is something we already know how to construct at that price.
Everything we build under hardscaping
Retaining Walls
A retaining wall holds back graded soil so a sloped yard becomes usable. Around Puget Sound, segmental block walls run roughly $45 to $70 per face square foot installed, with drain rock, filter fabric and a perforated drain line behind every course
Details & costPaver Patios
A paver patio is an interlocking concrete or stone surface set on a compacted crushed-rock base rather than a poured slab. In King County, installed cost typically runs $22 to $38 per square foot depending on the paver, base depth, and site access
Details & costWalkways & Pathways
A walkway connects the drive, the door, and the yard on a compacted crushed-rock base that will not shift when the ground saturates. Around Puget Sound, installed cost usually falls between $24 and $42 per square foot for pavers and far less for compacted fines
Details & costDriveways
A paver driveway carries vehicle loads on a deep compacted aggregate base with 80 mm interlocking units on top. In King County, installed cost typically runs $28 to $48 per square foot, higher for permeable systems
Details & costFire Features
Fire features are built-in wood pits, gas fire bowls, and fire tables set into masonry. Around Puget Sound, a wood-burning block pit typically installs for $1,800 to $4,500 and a permitted natural gas feature for $5,000 to $14,000
Details & costOutdoor Steps
Outdoor steps turn a slope into a route you can carry groceries up. In the Puget Sound market, block-and-cap steps typically run $250 to $450 per linear foot of tread installed, and solid granite or basalt slab treads run higher
Details & costSeating Walls
A seating wall is a low freestanding wall, usually 18 to 20 inches tall, that edges a patio and doubles as permanent bench space. Around Seattle, installed cost typically falls between $80 and $150 per linear foot depending on cap material and whether the wall carries a fire table or lighting.
Details & costWater Features
A landscape water feature recirculates water through a hidden basin instead of an open pond. Pondless basalt column sets and disappearing fountains are the common choice in Puget Sound, and installed cost usually lands between $3,500 and $12,000
Details & cost
Hardscaping: common questions
What is the difference between hardscaping and landscaping?
Hardscaping covers the built, non-living elements — walls, patios, walkways, driveways, steps and fire features. Landscaping covers the living material and the ground plane: planting, lawns, sod and irrigation. Most projects need both, and we self-perform the hardscape while coordinating the planting around it.
Do you need a permit for hardscaping in King County?
Patios and walkways at grade generally do not require a permit. Retaining walls become a permit-and-engineering matter above 4 feet of exposed height in essentially every Western Washington jurisdiction, and several cities trigger lower when a wall carries a surcharge or is tiered. Larger impervious-surface additions can trigger drainage review. We confirm with the city before we dig.
How long does a hardscape project take?
A straightforward paver patio is typically three to six working days. A retaining wall runs four days to two weeks depending on height, length and how much excavation the site needs. Weather adds time between November and March — we do not set pavers on saturated base, because it does not hold.
What time of year is best for hardscaping in the Pacific Northwest?
Late spring through early fall gives the most reliable working conditions, and that is when the schedule fills. Hardscape can be built year-round here as long as the base can be compacted dry, so winter projects are possible and often scheduled sooner. Booking a summer build in the preceding winter is the usual way to get the date you want.