🌩️ Storm damage? We offer free roof inspections — call (605) 728-7429 or get a free estimate today.

South Dakota's Full-Service Home Builder

From Foundation to Rooftop — We Build It All. One team. One contractor. Zero coordination headaches.

5.0 7+ Google reviews
Trusted Brands We Install
  • GAF
  • CertainTeed
  • Andersen Windows
  • LP SmartSide
  • James Hardie
  • Owens Corning
  • Trex
  • Pella
What We Do

General Contractor services in Parker, SD

From quick repairs to full projects, we help you choose the right general contractor services without pressure or guesswork.

Not sure what you need? We will assess your project at no cost.

Call (605) 728-7429

From Foundation to Rooftop — We Build It All

Roofing. Siding. Windows. Custom Homes. One contractor handles everything so you don't have to coordinate a dozen different crews.

Get a Free Estimate Call (605) 728-7429
  • New Homes
  • Roofing
  • Windows & Doors
  • Siding
Construction crew and tools on a residential job site, showcasing exterior framing and deck materials.

Since 2022

Serving locally
Turner County

Our Story

South Dakota's
Full-Service Builder

Keystone Builders was built on years of hands-on experience across two states before planting roots in South Dakota. Our founder started his career framing custom homes for a builder in eastern Oregon, where he learned the fundamentals of residential construction from the ground up. That foundation set the stage for everything that followed.

From Oregon, the path led to Montana, where he joined a high-end custom home builder and spent years refining his craft on true custom builds. Working at that level pushed his skills well beyond the basics. Tight tolerances, demanding clients, and complex designs became the norm, not the exception.

Our Full Story

Keystone Builders by the numbers

  • 0+ Projects Completed
  • 0+ Years of Experience
  • 0 Cities Served
  • 0% Locally Owned
How We Work

How We Build It Right

A simple, transparent process — from your first call to the final walkthrough.

Free Estimate & Consultation

We visit your property, assess your needs, and provide a detailed, no-obligation estimate. We'll walk you through material options, timelines, and what to expect.

Custom Plan & Proposal

We put together a clear scope of work tailored to your project — whether it's a full home build, a new roof, windows, or siding. No vague quotes, no hidden costs.

Expert Construction

Our experienced crew gets to work. One team handles everything — no juggling multiple contractors. We keep you updated throughout and maintain a clean, safe job site.

Final Walkthrough & Warranty

We do a thorough walkthrough with you before calling any job complete. Your project is backed by our workmanship warranty and manufacturer material warranties.

We handle all permits, materials, and site cleanup. You stay informed every step of the way.

See the Transformation

Drag the slider to reveal the difference

Our Work

Recent Projects in Parker, SD

Every project in this gallery was built by our crew. Real work, real clients, real results.

Dark composite deck with black aluminum railing overlooking wooded yard
Siding
Parker, SD
Telescopic handler lifting framing materials at commercial construction site with masonry walls
New Homes
Parker, SD
Interior of new agricultural building with wood framing, metal roof, and concrete foundation
Roofing
Parker, SD
Elevated composite deck with black aluminum railings and stairs, surrounded by landscaping
Siding
Parker, SD
Composite deck stairs with black metal railing and handrail on residential home
New Homes
Parker, SD
Bright sunroom with dark hardwood floors, white wainscoting, and multi-pane windows overlooking trees
Windows & Doors
Parker, SD
Where We Work

General Contractor Services Across
Parker

Based in Parker — serving every corner of Parker.

Primary Service Area

Parker, SD

Parker is the heart of Turner County and Keystone Builders' home base. Nestled along SD-44 in southeast South Dakota, Parker is a growing small town with a tight-knit community feel, a mix of established in-town neighborhoods and newer residential developments on the outskirts, and a strong agricultural heritage. We serve homeowners, property managers, and builders throughout Parker with roofing, siding, windows, decks, and full custom home construction — all from a team that actually lives and works here.

Cities & Communities We Serve:

ParkerHarrisburgBeresfordTea
Parker, SD Services

Sioux Falls, SD

Lennox, SD

Centerville, SD

Alcester, SD

Canton, SD

Harrisburg, SD

Beresford, SD
Client Reviews

What Turner County homeowners say.

5.0
7 Google reviews

Worked with us?

Leave a Review

We had an outstanding experience working with Keystone Builders and their owner, Brian, on residing our home. From start to finish, the quality of work and attention to detail were absolutely top notch. During the project, they discovered an issue with rot under the old siding. Brian took the time to walk us through exactly what had caused it, clearly explained our options for repair, and offered great solutions to ensure it wouldn’t happen again. His honesty and expertise gave us total confidence in the process. Communication was excellent throughout the entire job—Brian and his team were always responsive, informative, and respectful of our time. Their professionalism and the cleanliness of the jobsite really stood out. And to top it all off, the project was completed right on schedule. We couldn’t be happier with the results and highly recommend Keystone Builders to anyone looking for reliable, high-quality workmanship. Thank you, Brian and team, for making this such a smooth and positive experience!

sam west Google review · July 2025

Brian was prompt and always here when he said he would be. His skills are outstanding. He replaced siding, fascia board, window trim, an odd shaped window, a patio door and front door with precision. I would definitely recommend him for more projects.

Sheryl Frey Google review · June 2025

Brian with Keystone Builders is very friendly and a skilled professional. Brian removed our old shingle roof and replaced it with a quality metal roof. Once Brian started our roofing project he watched the weather and worked very hard to get our new roof installed in a very timely manner. If I could, I would give a six star rating! Thank you Brian with Keystone Builders!

Scott Montgomery Google review · November 2025

Brian with Keystone Builders is a very hardworking and capable craftsman. He has attention to detail and is very fair minded. He is also extremely dependable. I would highly recommend him for your next project. He was my main guy to frame my 8,500 square foot custom home with 12/12 pitch roof. This build was complex and he stayed on the project throughout treacherous weather and other very challenging aspects of this multi year project.

ron rensberger Google review · April 2025

Super talented team. Very detail oriented. Appreciate his candor and consistency.

Jason Callaway Google review · December 2025

Ready to become our next happy client?

(605) 728-7429
FAQ

Common Questions About General Contractor in Parker, SD

Answers to the questions homeowners ask most before hiring a contractor. Not seeing yours? Call us. We are straightforward about our process, pricing, and expectations.

We primarily serve Parker, SD, Sioux Falls, SD, Lennox, SD, Centerville, SD, Alcester, SD, Canton, SD, Harrisburg, SD, Beresford, SD. If you are outside these areas, call us. We take select projects beyond our standard service radius for the right scope.

Yes, we build custom homes and spec homes throughout Parker, Sioux Falls, and surrounding areas. Contact us to discuss your project.

We build custom homes, townhomes, and spec homes. We manage framing, structural work, and coordinate all trades.

Yes, we specialize in framing additions and home expansions. We can add square footage and new rooms to existing homes.

Still have questions?

Call us directly. Real answers, no scripts.

Call (605) 728-7429
Find Us

Proudly Based in Parker, SD

Stop by, call, or book online — we're always nearby when you need us.

Hours

  • Monday 7:00 AM - 6:00 PM
  • Tuesday 7:00 AM - 6:00 PM
  • Wednesday 7:00 AM - 6:00 PM
  • Thursday 7:00 AM - 6:00 PM
  • Friday 7:00 AM - 6:00 PM
  • Saturday Closed
  • Sunday Closed
Get Started Today

From Foundation to Rooftop — We Build It All

Keystone Builders serves Parker, SD and the surrounding area with professional General Contractor services. Free estimates, clear options, no pressure.

Locally owned and supports local vendors
Custom home builder with high-end remodel expertise
Developed teams for exterior and interior work
Experienced in spec homes and townhome construction
Call (605) 728-7429

Mon–Fri 7:00 AM - 6:00 PM · Sat Closed · Responses within 2 hrs

Get a Free Estimate