OPEN 24 HOURS  ·  Water & Sewer Emergencies  ·  Rapid City & the Black Hills  ·  (605) 430-2626
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Rapid City & the Black Hills · Open 24 Hours

Water & sewer, done on the mark.

On Site Excavating is the crew Rapid City calls when a water main breaks, a sewer line fails, or a new build needs utilities run right. Owner-operated by Ty, open around the clock, and rated a perfect 5.0.

5.0 ★★★★★ on Google19 reviews24/7 emergency
On Site crew · Black Hills, SD
Water or sewer emergency right now?Call (605) 430-2626, we answer 24/7
Water MainsSewer LinesNew InstallationCisternsExcavationTrenching24/7 Emergency
5.0Google Rating
195-Star Reviews
24/7Always Open
0Hidden Costs
What We Do

Underground utility work, dialed in

Water and sewer are what we know cold. From an emergency main break to a full new install, here is how On Site puts you back on solid ground. Pick a service to see how we handle it.

Precision Underground

The name says it. We hit what we aim at.

A water or sewer line is only as good as how it goes in the ground. Dug to the right depth, bedded right, backfilled and compacted right, below the frost line, and put back so you would never know we were there. That is the difference between a repair that lasts and one you are calling somebody about again next spring.

On Site works clean and works right the first time. Our reviews say it over and over: everything was explained up front, the timeline was clear, the crew was professional, and the site was spotless when they left. That is not luck. That is doing underground work like precision matters, because down here it does.

  • Lines set to grade and below the frost line
  • Trenches dug clean, safe, and accurate
  • Backfill compacted so nothing settles later
  • Site left clean, like we were never there
COMPACTED BACKFILL graded & compacted in lifts LINE sand bedding BELOW THE FROST LINE FIG. 1 / HOW A LINE GOES IN RIGHT
How It Goes

Straight, from the first call to backfill

01

You call, we answer

Any hour, any day. Reach Ty directly at (605) 430-2626. For an emergency we move fast to stop the bleeding and keep your water working while we plan the fix.

02

Clear plan, clear price

We tell you exactly what is going on, what the fix takes, and what it costs, up front. No hidden costs, no surprises on the invoice. Just a straight number and a clear timeline.

03

Done right, cleaned up

We dig it, fix it, backfill and compact it, and put the site back so you would not know we were there. Then we make sure it is right before we roll out.

On Site Excavating equipment fleet staged in the Black Hills
Who We Are

Owner-operated, and it shows

On Site Excavating is Ty, his son, and a crew that treats your property like their own. When you call, you get the owner, not a dispatcher three states away. That is why the work is consistent and the reviews read the way they do.

Homeowners on a Sunday emergency, builders on a tight deadline, folks out on cisterns and rural water. They all get the same thing: honest answers, fair prices, and clean work that holds.

  • The owner is on your job, not just on the invoice
  • Residential and commercial, emergency and planned
  • Trusted by local contractors and builders
More about On Site
What Neighbors Say

Nineteen reviews. Every one is five stars.

These are real Google reviews from real On Site customers around Rapid City. Integrity, honesty, and clean work come up again and again.

★★★★★

“On Site Excavating is honestly one of the best companies I have worked with. They do things the right way and you can tell integrity actually matters to them. They are upfront, honest, and do not try to sneak anything past you.”

Kara Goodrich
★★★★★

“Ty and his whole crew are top notch. I needed my front water main replaced, and from A to Z everything went exactly as it was explained to me when I contacted them. They had me up and running quick.”

Larry Paulsen
★★★★★

“Ty and his son came on a Sunday to repair my leaking cistern. They did a great job and were very professional. Everything was cleaned up after they were done. You would not know they were ever here.”

Ben Shilling
Where We Work

Rapid City & the Black Hills

From the shop on Oakland Street, On Site covers Rapid City and the communities around it, from Rapid Valley and Box Elder to Summerset, Piedmont, and Black Hawk. If you are in the western Black Hills area, you are on our map.

I-90 THE BLACK HILLS Rapid CityRapid ValleyBox ElderSummersetPiedmontBlack Hawk SERVICE AREA / WESTERN SOUTH DAKOTA
Why It Matters

The line you cannot see is the one that matters most

Nobody thinks about their water main or sewer line until the day it fails. Then it is the only thing that matters. Water where it should not be, no water where it should be, or a sewer backing up into a house. Those are not tomorrow problems, and On Site is built around that reality.

Being open 24 hours is not a slogan here, it is the whole point. When a main lets go at midnight or a line collapses on a Sunday, the difference between a bad day and a disaster is how fast a real crew shows up and how well they work once they do. We answer, we come, we stop the damage, and we fix it right.

Underground utility work is unforgiving because you only get one shot before it is buried. A line set too shallow freezes. A trench backfilled carelessly settles and cracks the line inside it. A connection made in a hurry leaks for years. So we do it the slow-is-smooth way: located before we dig, set to proper depth, bedded and backfilled and compacted, and pressure-checked before we close it up. Precision on the part you cannot see is the entire job.

That is what the crosshair in our name stands for. On site, on the mark, every time, whether it is a 2am emergency or a planned install for a new build. It is why nineteen out of nineteen reviews landed on five stars, and why local contractors hand us the work they need done right.

Open 24 Hours

Request service or a free quote

Tell Ty what is going on. For emergencies, call or text and we will move. For everything else, send the details and you will get a straight answer and a fair number.

Emergency? Call or text (605) 430-2626 right now. We answer around the clock.

  • You talk to the owner, Ty, not a call center
  • Upfront, honest pricing with no hidden costs
  • Water & sewer specialists across the Black Hills

Emergencies answered 24/7. Everything else, we get back fast.

Got it. Ty will reach out. For an emergency, call (605) 430-2626 now.

Common Questions

Good to know before you call

Are you really open 24 hours?

Yes. Water and sewer emergencies do not keep business hours, so neither do we. Call or text (605) 430-2626 any time, day or night, weekend or holiday, and you will reach us.

What does On Site Excavating do?

We are water and sewer utility specialists. Water main and sewer line repair and replacement, new water and sewer installation, cistern and rural water service, and the excavation and trenching that underground work takes, all across Rapid City and the Black Hills.

How much will my repair cost?

It depends on the line, the depth, and what we find when we open it up, but the price is always upfront and honest with no hidden costs. Our reviews say it best: no surprises, just straight up good work at a fair price. Call and we will walk you through it.

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