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.
Site Construction for New Maryland Healthcare Facility
Comer Construction served as the site work contractor providing underground utilities, stormwater management, grading, curb and gutter work, sidewalks, and paving.
Grading and Stormwater Management for Maryland Hospital
Comer Construction is handling curb, gutter, sidewalk and road work at GBMC, as well as utilities, grading, and material haul-off.
Harford County Technical Rescue Team Trench Rescue Practice
The Harford County Technical Rescue Team recently completed a trench rescue training with the help of Comer Construction. Steve Hinch, the Training and Exercise Planner for the Special Operations Team, reached out to Comer Construction about assisting in the annual...
2022 Employee Appreciation Event
Our Annual Employee Appreciation Event was held on October 29th at the Jarrettsville VFW. Team members enjoyed food, prizes, and other traditions.
Grading & Infrastructure in Bel Air, MD
Comer Construction started work at The Homestead Wakefield Elementary School in Bel Air, Maryland during December 2021. Comer Construction’s scope of work for the first phase of this project included grading, underground utilities, and stormwater management.
Excavation & Stormwater Management in Baltimore, MD
Supporting general contractor Southway Builders, Comer Construction’s scope of work includes – but is not limited to – demo, excavation, mass and fine grading, storm drain, sewer service and stormwater management.
Grading & Utility Work at Baltimore City School
Comer Construction has been busy with site work at The Highlandtown Elementary/Middle School in Baltimore City since June 2021. We started with grading and stormwater management in preparation for construction of the new school.
Hydro Excavation in Maryland
Soft digging via hydro excavation saves lives. We were recently tasked with replacing a fire hydrant. There were four unmarked secondary electrical lines that would have injured our team if we used mechanical methods. Thankfully, we used hydro excavation and safely excavated the area.
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.







