Home › Portfolio › Paver Patio and Seat Wall Over an Old Concrete Slab in Renton, WA
Sta-Built Construction replaced an old exposed-aggregate concrete patio behind a Renton, WA home with a Belgard Urbana Stone paver patio and an L-shaped Belgard Shelton seat wall in July 2026. The work order covers 580 square feet of patio and walkway, 28 linear feet of seat wall with a drain pipe behind it, and 100 square feet of demolition. Demolition started July 15 and the patio was finished July 21, more than two weeks ahead of the date the homeowners had hoped for.
Project Details
- Location: Renton, WA
- Service: Paver patio and side walkway with a freestanding seat wall, replacing an old concrete slab
- Paver area: 580 sq ft of patio and walkway on the work order
- Pavers: Belgard Urbana Stone; the material order lists two colors, Victorian and Rio
- Seat wall: 28 linear ft of Belgard Shelton Wall in Victorian, built in an L along the back and side of the patio, with a cap listed in Midnight on the material order
- Drainage: 28 linear ft of wall drain pipe behind the seat wall (ADS perforated pipe with a sock)
- Joints and base: Easy Joint in Stone Gray; geotextile fabric
- Demolition: 100 sq ft of the old backyard concrete and wood divider strips
- Supplier: Winsupply Tacoma
- Built: July 15 to 21, 2026
- Project investment range: $21,900 to $34,400
- Warranty: 27-Year Craftsmanship Warranty on the pavers; 17-Year Craftsmanship Warranty on the seat wall
Before and after
The problem
The site visit photos from early June 2026 show the back of the house as it was: an exposed-aggregate concrete slab outside the sliding door, divided into panels by wood strips, with old landscape timbers edging the planting beds behind it and a narrow concrete walk running down the side of the house. Grass was growing in some of the joints. The homeowners had a date in mind: family was coming to town, and they hoped to have it done by August 8.
The solution
The plan replaced the old concrete with pavers from the sliding door out to the lawn and down the side of the house, and added a freestanding seat wall around the back corner of the new patio. A drain pipe runs behind the wall.
The plan changed at the July 7 walk-through. The photos from that visit show the layout chalked onto the old slab, with the seat wall’s line marked. After the visit, the record notes the seat wall cap still to be chosen, and the original line items for four sono tube footings and 40 square feet of sod were taken off the scope, with the square footage and the seat wall updated to match.
The materials
The pavers are Belgard Urbana Stone, a multi-size paver laid in a random pattern; the material order lists it in two colors, Victorian and Rio. The seat wall is Belgard Shelton Wall in Victorian, and the order lists its cap in Midnight. Joints are filled with Easy Joint in Stone Gray, and the order includes geotextile fabric and ADS perforated drain pipe with a filter sock for behind the wall. The supplier on the order is Winsupply Tacoma.
How it was built
Demolition ran July 15. The photos show the concrete along the house broken out into rubble, the old wood divider strips pulled, and a tape measure held at the broken edge of the slab.
By July 17 the pavers were going down along the house and out across the patio, with edge pieces cut to fit with a cut-off saw. On July 20 the seat wall went up along the back and side of the patio, course by course, with its caps staged on the pavers, and the walkway down the side of the house was compacted. The finished patio was photographed July 21.
The finished result
The old slab and its wood strips are gone. The patio now runs from the sliding door to the lawn in one paver surface, the seat wall gives the back corner a built-in place to sit, and the side of the house has a paver walkway instead of the narrow concrete strip. The homeowners signed their warranty card on July 21.
What a project like this costs
Project investment range: $21,900 to $34,400. This range reflects the scope of this completed project and is not a current quote.
Three things set this price. The 580 square feet of patio and walkway is the largest piece. The seat wall is its own build, with a drain pipe run behind all 28 feet of it. And the old concrete had to come out before any base went in.
See more on our paver patio page, seat wall page, and paver walkway page, and our Renton service area. Related projects: artificial turf and paver walkways in Renton and a patio with a seat wall and seat couch in Beaverton.
Related questions
What does a paver patio with a seat wall cost in Renton, WA?
This project came in between $21,900 and $34,400, covering 580 square feet of Belgard Urbana Stone patio and walkway, 28 linear feet of Belgard Shelton seat wall with a drain pipe behind it, and demolition of the old concrete. The range reflects this completed project and is not a current quote.
Was the old concrete patio removed?
Yes. The work order includes 100 square feet of backyard demolition, and the July 15 photos show the concrete along the house broken out and the old wood divider strips pulled before the new base went in.
What materials were used?
Belgard Urbana Stone pavers, with Victorian and Rio on the material order, Belgard Shelton Wall in Victorian for the seat wall with a cap listed in Midnight, Easy Joint in Stone Gray for the joints, geotextile fabric, and ADS perforated drain pipe behind the wall, all from Winsupply Tacoma.
What changed at the walk-through?
At the July 7 walk-through the layout was chalked onto the old slab. Afterward, four sono tube footings and 40 square feet of sod came off the scope, the square footage and seat wall were updated, and the seat wall cap was still to be chosen.
How long did the installation take?
Demolition started July 15, 2026, the pavers went down by July 17, the seat wall went up July 20, and the finished patio was photographed July 21. The homeowners had hoped for completion by August 8.
Planning something similar?
If you have an old concrete patio that is cracked, stained, or just tired, Sta-Built can walk it with you and show you what pavers and a seat wall would take. Schedule a free design consultation.
This project documentation was prepared by Sta-Built Construction from the project records and photos from our crew, October 2026. Technical review by Ben Metsker, Manager.