Concrete Patio and Walkway Replacement Under a Deck
The old exposed aggregate patio under this upper deck was broken out in June 2021 and replaced with a new, larger concrete patio, a walkway along the side of the house and another leading out to the lawn. The new slab fills the space between the deck posts and reaches the house wall. The job photos run from May 17 to June 11, 2021.
- Service
- Concrete patio and walkways
- Scope
- Old patio and path removed, ground dug out, forms and rebar set, new patio poured between the deck posts, side and lawn walkways poured
- Year
- 2021
- Duration
- About 4 weeks between the first and last job photos, May 17 to June 11, 2021
- Approximate investment
- About $10,000
- Finish
- Broom finished concrete with tooled joints
- Contractor
- Volcano Builders, WA license VOLCABI792C6
Every project is priced in writing, line by line, for your home.
Before the pour
The finished patio and walkways
How this patio under a deck came together
The goal
The space under the upper deck had an old exposed aggregate patio that stopped short of the house, and the side of the house had only a narrow path. The aim was a bigger, cleaner patio under the deck, sheltered by the deck above, with solid walkways connecting it to the side of the house and out to the lawn.
The challenge
The old slab had to be broken out and the new patio poured around the existing deck posts without disturbing them, which leaves little room to dig, set forms and move concrete. The walkways also had to meet the patio, the house wall and the river rock beds at clean edges.
The solution
By June 3, 2021 the old patio was broken out and the ground under the deck dug out between the posts. The next day wood forms went in around the patio and along the walkways, a base was raked level, and a rebar grid was laid across the patio area. On June 7 the crew placed the concrete, worked it in around every post, and gave the surfaces a broom finish with tooled joints. The river rock beds and stepping stones were left in place at the edges.
The result
By June 11, 2021, about four weeks after the first photos, the patio and walkways were finished. The area under the deck is now one level concrete floor from the posts to the house wall, the side path is a wide, firm walkway, and a second walk leads from the lawn straight onto the patio. The deck above gives the new patio cover, so it is usable in more weather.
Related pages
- Concrete Contractors in SeattleOur concrete service: patios, walkways, pads and driveways.
- Remodeling Pricing Guide for Seattle and Bellevue, WAWhat drives the price of a remodeling project.
- Side Yard Concrete Walkway and PadA side walk and pad poured around new gate posts.
- Concrete Driveway Replacement in Bothell, WAAn old driveway broken out and poured new.
- Patio Contractors in SeattleOur patio service, from concrete slabs to covered patios.
Questions about this project
Can you pour a concrete patio under an existing deck?
Yes. Here the old patio was broken out and the ground dug out between the deck posts, forms and a rebar grid were set, and the concrete was placed and finished around each post without taking the deck down.
Why put rebar in a patio slab?
Rebar ties the slab together, so if it cracks the pieces stay level with each other. The grid was laid across the patio area on June 4, 2021, before the pour.
How much did this project cost?
About $10,000. Every project is priced in writing, line by line, for your home.
How do I get a price for a concrete patio or walkway?
Book a consultation. We measure the area, check the access and the edges the concrete has to meet and send a written, itemized price before work starts. For what moves the price, read Remodeling Pricing Guide for Seattle and Bellevue, WA.
Before you book
- Remodeling Reviews in Seattle and Bellevue, WAWhat homeowners say about working with us, in their own words.
- Home Renovation Financing in SeattleHow remodeling financing works, and the application.
- Home Remodeling Warranty in WashingtonHow our warranty protects the work once it is finished.
- Referral Program for Volcano Builders in Seattle and Bellevue, WARefer a friend who is planning a remodel and choose your reward.
- 5 benefits of building a patio in your backyardFrom our blog.
- How to Build a Covered Patio Attached To House?From our blog.
Book your concrete consultation
Four quick steps. Tell us about your project and we’ll reach out to discuss it and see if we’re the right fit.