Services
Expert Hardscaping in Seattle, Kent & South King County
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. Washington contractor license BLUELLS880K2, with a published cost range on every service page.
Hardscaping has to get through a Puget Sound winter. A patio that was never compacted right will show every rut by its second February. Put up a wall with no drain rock behind it and water pushes on it until it leans. Almost every repair we get called out for started as one of those two shortcuts.
So we build the base properly. Dig down to soil that will hold, put crushed rock in and compact it in layers, and give the water a route out before it picks its own. None of that is interesting to look at and most of your money goes into it. It is also the only reason the job still looks right ten winters later.
We draw the plan and we build it. No design fee, no waiting on an architect, no handing the drawings to whoever bid lowest. It also means we never draw something we do not already know how to build at the price we quoted.
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 & cost
Paver 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 & cost
Walkways & 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 & cost
Driveways
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 & cost
Fire 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 & cost
Outdoor 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 & cost
Seating 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 & cost
Water 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.