Terra Nova Engineering
Company Overview
We provide services for trenchless sewer lateral replacement and EBMUD certification in the East Bay area.
Since 1990, Mirko Yovanovich has been running this company as a general engineering contractor.
Mirko specializes in replacing trenchless sewer lines and repairing laterals.
We pride ourselves on offering exceptional service and the industry's leading warranty.
We manage all compliance certifications with EBMUD and other local municipalities.
We also help clients navigate the different sewer grant rebates offered in some regions.
Our team has over three decades of experience as underground contractors.
He spends his off-hours with family and has a passion for gardening.
He finds satisfaction in assisting homeowners with their sewer lateral replacement needs.
Business Services
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 9:00 AM - 5:00 PM |
Tue: | 9:00 AM - 5:00 PM |
Wed: | 9:00 AM - 5:00 PM |
Thu: | 9:00 AM - 5:00 PM |
Fri: | 9:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

TerraNova is a great company very Professional and nice team, they are helped me fixing a job (Sewer Lateral replacement) that was badly done by HNR plumbling who is not taking responsibility even though I still have guaranty with them..
"" I'm blessed I came across with Terra Nova Engineering "" they fixed the problem at once.

We needed our lateral sewage to be up to code so the city can refund the deposit we paid when purchasing our new home. We found Terra Nova in the disclosure package from the seller and was pleasantly surprised Sheila was able to fit us in within a week.
The crew came over one morning. They dig up, replace, connect and patch up all within a day. The City inspector who came by in the afternoon couldn't sing enough praise about Terra Nova. I agree with her. The official certificate was in my mailbox within 2 weeks.
It was so easy to work with Sheila. Totally recommending them to anyone in Berkeley who need their sewer lines replaced.

We had a great experience with Terra Nova and Sheila in particular. The sewer passed inspection with no issues and our yard as well as the neighbors looked better than expected after the work was complete.

If the ratings offered went above five stars, I'd be going there.
We replaced all the sewer lines for a property with a backyard in-law unit, lots of peripheral drains from the main house, and multiple trees and walkways above the lines.
There were three different kinds of pipes, even going back to the original Victorian stuff, with gradient issues, offset pipes, tree roots, crushed pipes - pretty much a smorgasbord of problems.
Their bid was the middle of the three I got (the lowest one seemed a bit careless in describing the work).
They were available about a week sooner than expected, so that we even beat the rains!
And the work was speedy, less than two days total, despite a lot of fussy bits involving walkways and protecting trees.
By the time they were done, the most you'd think happened was an energetic (needed) weeding above the point where five pipes came together.
They reassembled the brick walk above this section so perfectly that you literally could not tell that there had briefly been a pit there!
Communication was great at all times.
I could not be more pleased.

Terra Nova Engineering did an awesome job at our home in Richmond, CA for the required sewer lateral. They cleared the line, cleaned up the over flow and disinfected the area but were prompt and thorough with the job they did. They charged far less than any other bid and this included pulling permits and final certificate of compliance. Sheila was responsive to every phone call and email (usually within 10 minutes or less) and extremely professional honoring the bid quote even though additional work was encountered. I highly recommend Terra Nova without reservation!

My wife and I just purchased our first home and we needed the sewer lateral to be replaced due to root penetration and the fact that the line was just some 50 years old and outdated. Sheila, from Terra Nova Engineering was amazing to deal with from the start in understanding what needed to be done and providing me the information I needed. She even offered a very competitive bid (below some of the other local companies) and was extremely helpful throughout the whole process. Another great thing was they had an opening in their schedule and actually completed the work well before I expected it to be done. On the day of I was unable to be there due to work but they kept me updated throughout the process with photos, text and email. Most importantly, they kept true to their estimate price and even did additional work that was slightly more in depth than they had originally thought due to the proximity of my water main to my sewer lateral at no added cost. After the work was finished the work area looked clean and was repaved extremely well. I would recommend to anyone in the area to use Terra Nova and I would certainly use them again if I needed any sewer repair work.

We had a wonderful experience (or as wonderful as sewer lateral replacement gets!) with Terra Nova. Sheila and Mirko were professional and knowledgeable and guided us through the process, answering all our questions. They were able to schedule us on an urgent basis at a very fair price. They took care of an unexpected problem at no extra expense for us. The crew arrived on time, performed the work, finished the work, and left a clean driveway in just a few hours. The next day I had the certificate for the sewer lateral replacement in hand. I can't wait to recommend them to friends!

Sheila Conn and Terra Nova Engineering are awesome! Sheila explained as much as she could ahead of the work being done. Employees were professional and thorough and were able to complete the work in one day. Terra Nova took care of all permits, parking postings, meeting with City Inspector and obtaining certificate of compliance. On top of that Sheila went over requirement by requirement on how to apply for the City of Richmond Sewer Lateral Grant Program. Thank you Sheila and Terra Nova for helping this new home owner have one less worry.

we needed to get our private sewer lateral replaced and up to code, and Sheila and the Terra Nova Engineering team took care of it without a hitch! Sheila was professional and responsive, and the project came in right at the price we were quoted (which was a little under some competing quotes). The work crew left our yard just as it had been and did a great, clean job. I'd definitely recommend Terra Nova if you need your PSL done.

We were very pleased with Terra's Nova service! We thought we had a complete sewer lateral replacement back in 2009 when another company did some work, but when we requested a copy of our compliance we discovered they had only replaced part of the sewer line up to our retaining wall. Terra Nova was meticulous about getting the records what had been done, and figuring out how to do the remaining work carefully, but quickly and within our budget. They had to tear up a brick patio, but I couldn't tell they had been there when the project was complete! I highly recommend them and would work with them again!