Charles Bacon
Analyst · DA Davidson
Thank you, Jeremy. Welcome, everyone, and thanks for joining us.
Joining me today is our Chief Financial Officer, John Jordan. As Jeremy mentioned, we'll be using a presentation deck, and I'll be noting the pages we're referencing in our commentary.
We're quite pleased with the results for the quarter, which was great to see after our strong fourth quarter results. As summarized on Slide 3, Q1 was a solid quarter across the board, as we executed well on both our Construction and Service segments. As you can see from the table here, the company's performance in Q1 exceeded both the prior year period and analyst consensus estimates, up and down the P&L, from revenue to EPS. John will provide greater in line details shortly.
Broadly speaking, through the first quarter, 7 of our 10 business units reported year-over-year growth in revenue reflecting the continued strengthening of our brands and presence in each market location. Within our Mid-Atlantic business unit, I'm pleased to announce they delivered a profit exceeding their business plan forecast. On May 9, I spent the day with the Mid-Atlantic team discussing their marketing plan going forward.
I left the session with a positive view on their market opportunities post rightsizing the business. We don't expect much contribution in 2019 from Mid-Atlantic, but it became clear they're back on track to deliver positive operating results in the future. I want to acknowledge the team for their drive to turn around that business unit. It's a great group of people with a very bright future. They have a very strong competitive advantage with their full mechanical, electrical, plumbing offering, which is unique to their local market at our scale.
Now turning to Slide 4. As we approach the midpoint of the year, I'm really pleased with our sales to date after a strong fourth quarter. Health care projects continue to lead our bookings as Limbach continues to be a brand of choice for both large scale and smaller health care sector projects. We also booked a sizable research and development project in the New England business unit. Our pipeline remains very robust. Combined with what we know in terms of future opportunities we are tracking and other industry forecast, we see strong market opportunities for the near to midterm.
As a result of these and other wins, our current record backlog is in excess of $610 million. Of that total backlog, $557.6 million is Construction and the remainder is Service. In addition to booked backlog, we have an additional $341.9 million of promised work, which is not yet reflected in the backlog numbers I just mentioned. Historically, we have converted promised work to backlog at a very high rate. And with that noted, we feel good about our budget coverage for this year and also feel we have a nice head start on 2020 and beyond.
As those of you that have followed us for some time, that promised figure typically involves projects that were in preconstruction and design phases. From a timing perspective, while there was no hard and fast rule, projects in our promised bucket typically get underway anywhere from 6 to 12 months after we begin design and preconstruction work. The obvious inference here, again, is that we feel really well positioned looking out to 2020 and into 2021.
I want to make some high-level comments on each of our operating segments, and John will follow with more details on those as well. Within our Service segment, we enjoyed strong growth of over 23% year-on-year. Our investment in improving our Service leadership talent along with more feet on the streets selling services to buildings we did not build, continues to reach strong results.
As I mentioned on our last call, we launched new technologies to monitor energy consumption and provide predictive maintenance. We are very bullish on the continued rapid expansion of our Service segment. Our brand, combined with the addition of more sales staff and the introduction of new technologies, clearly creates an opportunity for strong ongoing expansion and growth within the Service segment.
I'm also very encouraged by the performance of our Construction segment. We continue to solidify our relationships with building owners that is helping drive our strong sales and record backlog. Also during our last couple of earnings calls, we've provided a lot of detail on the initiatives we have put in place to return our Mid-Atlantic branch to profitability and the Q1 performance of that business unit shows our plan is working. We also have talked about the diversity of our business as a key differentiator, and our Q1 results bear that out. Earlier, I noted how 7 of our 10 business units reported year-over-year revenue growth. That enabled our overall Construction segment revenues to be up despite our strategic contraction in Mid-Atlantic.
At this point, I'll hand it off to John for a review of our segments with more detail along with our overall financials.