Concrete Contractor ·
King County & the Eastside
Architectural Concrete
Excavation & Site Prep
Your Concrete Contractor in King County & the Eastside
As a family-owned concrete contractor, HTS Concrete & Construction delivers architectural and custom concrete for homes across King County and the Eastside: board-formed walls, patios and outdoor living spaces, foundations, and the excavation and site work that comes first. We build from your architect's or designer's plans, or help you shape the details on site. Owners Sean & Heather Tolbert and partner Jeremy Henning bring over 40 years of combined experience, and one crew runs your project from dig to final finish.
We work throughout King County—Seattle and Eastside towns including Bellevue, Redmond, Kirkland, Sammamish, Issaquah, and Mercer Island, out to North Bend, Snoqualmie, and Fall City in the Snoqualmie Valley. These lots bring their own challenges: slopes, wooded sites, and plenty of rain. Doing the excavation, drainage, and concrete with one crew means the ground is prepared with the finished work in mind.
Homeowner • Custom Home Builder • Architect • Designer • General Contractor
Architectural & Custom Concrete
Bespoke concrete built to perform, with board-formed walls, clean edges and finishes planned with your architect or builder—from custom walls and patios to foundations and architectural features.
Architectural Concrete
- Visually striking concrete features
- Form, finish & aesthetic detail
- Architect- and designer-driven work
- Quality materials & techniques
Custom Walls
- Architectural & retaining walls
- Planter walls & terracing
- Integrated stairs & landings
- Durable, design-forward builds
Custom Patios & Outdoor Living
- Elegant custom patios
- Pool decks & surrounds
- Outdoor kitchens & counters
- Stamped & decorative finishes
Foundations
- Custom home foundations
- Slabs, stem walls & crawl spaces
- Structural integrity + clean detail
- Additions & garage foundations
Custom Concrete
- Bespoke concrete structures
- Driveways, entries & walkways
- Architectural features
- Tailored to each client vision
Excavation & Site Work
- Site prep & grading
- Foundation excavation
- Utility trenching
- Land clearing & haul-away
Built for Custom Residential Projects
HTS specializes in architectural concrete solutions tailored to the unique needs and vision of each project. From foundations and custom walls to patios and outdoor living spaces (see our architectural & custom concrete services), we combine structural performance with meticulous craftsmanship and attention to detail.
Excavation & Site Work
Excavation and site work are complementary to our concrete practice—site prep, grading, foundation digs, utility trenching, land clearing, and haul-away that set architectural concrete up right. Learn more about our excavation & site work services.
We also take on standalone excavation when the project calls for it.
Built to Bring the Vision to Life
Custom home builders, architects, designers, and general contractors need a concrete partner who can read the drawings, respect the design intent, and deliver architectural concrete with precision.
We collaborate on custom residential projects—custom walls, foundations, outdoor living, and architectural features—with open communication and a client-centric approach from estimate through final finish.
Concrete & Site Work Services
Detail-driven concrete and site work for custom homes, remodels, and outdoor spaces.
Patios, Walls & Foundations
Decorative and exposed aggregate patios, board-formed walls, steps, and custom home foundations.
Stamped Concrete
Stamped patios, driveways, walkways, and pool decks with slate and stone textures and borders.
Retaining Walls
New poured concrete retaining walls with drainage built in, for sloped Eastside and Valley lots.
Concrete Driveways
New driveways from excavation and base to finish, including sloped and hillside drives.
Excavation & Drainage
Foundation digs, grading, utility trenching, and French drains.
Site Prep & Land Clearing
Clearing, stump removal, grading, and building pads for new builds.
Built on Hard Work. Built on Trust.
HTS is a family owned and operated business—owned by Sean and Heather Tolbert. Along with their partner Jeremy Henning, they bring over 40 years of combined expertise in the concrete industry and stay close to the work, with personalized service and open communication from the first site visit through the final walk-through.
Our Work
Architectural concrete, custom homes, foundations, outdoor living, walls, and excavation across Greater Puget Sound.
What Clients Say
5.0 · 8 Google reviews
Sean at HTS was excellent to work with. He facilitated demo and repouring of our 1980's aggregate driveway. […] Sean had invaluable input about how to design and layout our driveway, making huge improvements in drainage. […] He matched new aggregate really well with our older aggregate stairs. […] I cannot recommend HTS Construction enough!
I would highly recommend HTS Construction for your next concrete project. We had an old lopsided deck that we wanted to replace with a concrete patio. […] We are beyond thrilled with the result and cannot overstate how pleasant and easy communicating with Sean (contractor) and Heather (admin) was. […] Thank you HTS for making our summer backyard so incredible!
Sean did the concrete work for our aerated compost bins. […] Our bin was built into a hillside and small adjustments were needed to accommodate that. Sean was a great sounding board and had insights based on his experience that were invaluable in getting it right. […] We were extremely pleased with his work and the end result of the project.
Frequently Asked Questions
Who owns HTS Concrete & Construction?
Sean & Heather Tolbert own HTS, with partner Jeremy Henning; together they have 40+ years of combined concrete experience.
Where is HTS based and what areas do you serve?
We're based in North Bend, WA and work across King County (Seattle, Bellevue, Redmond, Kirkland, Sammamish, Issaquah, Snoqualmie), Snohomish County, and Kittitas County along I-90 to Cle Elum and Ellensburg.
What do you build?
New concrete work: retaining and architectural walls, patios and outdoor living, foundations, stamped and decorative concrete, driveways, plus excavation and site prep. We focus on new construction rather than repair or sealing.
Are you licensed, bonded and insured?
Yes. HTS is licensed, bonded & insured, with Washington L&I contractor license HTSCOC*794Q3.
How do estimates work?
Call (425) 269-4422 or send the quote form with your plans or a few photos. We reply within one business day, schedule a site visit if needed, and then give you a written estimate with clear scope and timeline.
Do you work with builders and architects?
Yes: homeowners, custom home builders, architects, designers and general contractors.
Ready to Discuss Your Project?
Planning a custom home, addition, or outdoor project? Send us your plans or a few photos for a detailed estimate.