Nothing Gets Built Until the Ground Is Ready.
That's Where We Come In.A Certified Women-Owned Site Development Contractor. Serving Greater Baltimore Since 1982.
Complete Site Construction. Start to Finish.
We self-perform every aspect of site development with our own crews and equipment. From the first pass of the dozer to the final stormwater control measure, one contractor is accountable from day one.

Grading & Excavation
Site preparation is where every project begins. Our experienced grading and excavation crews handle full site clearing, rough and finish grading, and earthwork to spec — so the next phase of your project starts on solid ground.

Underground Utilities
The work nobody sees makes everything else possible. Comer Construction installs sewer, water, and storm drain systems with the precision and equipment needed to keep your project on schedule and on budget.

Stormwater Management
Every site disturbs the land. Comer Construction implements approved erosion control and stormwater management plans to protect the surrounding environment and keep your project compliant from groundbreaking through completion.

Maintenance of Traffic
Keeping a worksite safe means managing what happens beyond the fence line too. Our MOT team provides traffic control, lane closures, and flagging services — MDOT-trained and ATSSA-certified, compliant with all federal and state standards.
My grandfather started this company with a vision — to build not just projects, but careers and a true family culture. Today we carry that same commitment into every job.
About Comer Construction
Comer Construction was founded in 1982 by J. Marvin Comer with two trucks, a loader, and a dozer. His daughter Susie was by his side from the beginning, and together they built one of Greater Baltimore’s most trusted site development contractors, built on repeat business, honest work, and a reputation that speaks for itself.
Today, Comer Construction is a certified MBE/WBE contractor with a large, modern fleet maintained entirely in-house by our own mechanics. Our award-winning safety program sets the standard on every jobsite, and our team brings the experience and equipment to handle every phase of site development.
As a third-generation family business, we bring the same values to every job that Marvin brought to the first one.
Join Our Team
Comer Construction has been a great place to work since 1982. We offer competitive wages, full benefits, and a culture where every employee is valued. Whether you’re an experienced operator or just starting out, there’s a place for you here.
Recent Updates
From featured projects and community events to awards and company news, stay up to date with what’s happening at Comer Construction.
Looking Back: The First Dump Trucks
As we celebrate 35 years in business, we are taking a look back on how things all got started at Comer Construction more than three decades ago. Today, we’re looking back on some of our first dump trucks. Pictured below are photographs of two of some of our first...
Comer Construction Celebrates 35 Years in Business and Launches New Company Logo
For more than three decades Comer Construction has provided high-quality construction services throughout northeastern Maryland. Starting with three employees on staff in 1982 at its headquarters in Harford County, Md., Comer Construction has grown to a team of more...
Comer Construction Continues to Expand Fleet
Comer Construction recently added two CAT 930M Rubber Tire Loaders and two Chevy Pickup Trucks to its fleet. The two CAT 930M Rubber Tire Loaders are used by utility crews to stock materials and for snow removal jobs. The two new 2016 Chevy HD 2500 ¾ ton pickup trucks...
Comer Construction Expands Its Equipment Fleet with New Excavators
Comer Construction recently added two new excavators to its equipment fleet – a CAT 305.5 Mini Excavator and a CAT 318 Wheeled Excavator. Both are pictured below. The Mini Excavator is useful on job sites that require digging and grading in small confined spaces. The...
Comer Construction Sponsors Event in Support of Maryland Governor Larry Hogan
Comer Construction recently sponsored an event in support of Maryland Governor Larry Hogan that was held in Bel Air, Md in early December. Susie Comer, Comer Construction President & Treasurer, was a member of the Host Committee and attended the event, along with...
Comer Construction Adds Two New Excavators to Equipment Fleet
Comer Construction recently added two new Hitachi Excavators to its equipment fleet. Underground utility crews will use the excavators to dig water, sewer and storm drain trenches for pipe installation, in addition to other projects.
Comer Construction Honors Delbert “James” Lewis for 20 Years of Service
Comer Construction would like to congratulate and thank Delbert “James” Lewis for his 20 years of service with the company. James is a dedicated and enthusiastic employee who has significantly contributed to the success of Comer Construction for the past two decades....
Comer Construction Expands Fleet with New Ford F550 truck
Comer Construction recently added a new Ford F550 truck to its fleet to provide on-site maintenance to equipment. Comer Construction currently has two maintenance-related trucks to perform on-site maintenance so all of our jobs continue in an efficient manner.
Comer Construction, Inc. is a certified women-owned site development contractor serving Harford County and the Greater Baltimore Region since 1982. MDOT MBE/WBE (#02-102) · Baltimore City WBE (#15-366678).
Contact Us
2100 Slade Lane
Forest Hill, MD 21050
410-879-6094
M-F: 6:00am – 5:00pm
Join Our Team
Comer Construction offers competitive wages, full benefits, and a workplace where you're treated like family. We're always looking for skilled people who take pride in their work.