Foundations and excavation in Auburn, WA homes, additions, walls and site work.

We dig and pour residential foundations, from a small addition to a new home on a hard site, and we take on the excavation, clearing and demolition that comes before them.

Poured concrete foundation walls beside a lake
Poured foundation walls on a lakefront lot.
Foundations

Foundations that pass the engineer’s drawings

Footings, stem walls, foundation walls and slabs. Customers who have hired us for foundations mention complicated sites, complex rebar from the engineering drawings, and a slab finish that came out perfect.

  • New home foundations
  • Additions and garages
  • Stem walls and footings
  • Concrete retaining walls
  • Slabs on grade
  • Waterproofing
Foundation forms set on a hillside lot with mountain views
Excavation & site work

Digging, clearing and demolition

Excavation is half our name on the logo. We dig for foundations and slabs, clear overgrown lots, cut access roads, break out old concrete and prepare the ground for whatever is going on it next.

  • Foundation excavation
  • Land and lot clearing
  • Concrete demolition
  • Grading for slabs and driveways
  • Snow removal
Mini excavator digging on a lakefront lot
Lot clearing

From overgrown to buildable

A wooded lot cleared of brush and trees, then a gravel access road cut through to the house.

Wooded lot with stumps, before clearing
Before
Cleared lot with a new gravel access road
After
Our foundations

Recent foundation jobs

Google reviews

What foundation customers say

Foundations are where precision matters most. Here’s what customers wrote on Google after theirs.

★★★★★
“Rafael and his team and RLP Construction in Auburn do some of the best concrete work I’ve seen. We are very happy with the job they did and highly recommend them for any concrete, deck or foundation work you might need.”
John N. · October 2026Concrete
★★★★★
“I recently hired RLP for a concrete pouring job, and I couldn’t be happier with the results. A special thanks to the owner, Rafael, for his professional approach and great organization throughout the entire process. The work was done perfectly flat, on time, and strictly within the agreed budget. True professionals.”
Олег Н. · May 2026Concrete pour
★★★★★
“I hired Rafael and his team to do our foundation. This was a complicated foundation on a complicated site. Rafael was great to work with. He was communicative, knowledgeable, honest, always willing to help and he and his team are very hard workers. His prices are very reasonable, he delivers on his promises.”
Nicole R. · June 2024Foundation
★★★★★
“I coordinated with RLP to do the concrete work at my mom’s house and my house the same week. The team was amazing to work with. Rafael was always willing to work with my mom and I on the design and he even offered some great details at no extra charge.”
Jace W. · April 2025Concrete
★★★★★
“Rafael and the crew put in a foundation for me. They came in equal to the lowest bid and had the shortest timeline. The quality of the work was exceptional. The finish on the top of the slab was perfect. They had no problem with the rather complex rebar assemblies specified in the engineering drawings.”
Richard K. · April 2023Foundation

Building, adding on or clearing a lot?

Call Rafael’s team for a free quote, Monday to Saturday, 7 am to 5 pm.

Call (253) 904-4930