Concrete Cost Guide for Gaithersburg, MD

There is no single reliable concrete price without knowing the dimensions, intended use, and site conditions of a specific project. Concrete project pricing varies because total cost depends on project size, existing concrete removal, site access, base preparation, slab thickness, reinforcement, finish, grading, drainage, and project complexity — and two projects with identical square footage can cost meaningfully different amounts when these factors differ.

Key Cost Factors

• Square footage and total slab area
• Demolition and removal of existing concrete
• Site access for equipment and concrete trucks
• Excavation and subgrade preparation
• Base preparation and compaction
• Concrete volume and mix requirements
• Slab thickness for the intended load
• Reinforcement where appropriate
• Finish type — broom, stamped, exposed aggregate, decorative
• Grading and drainage work
• Curing logistics and project sequencing
• Overall project complexity and layout

A small, accessible patio with straightforward access costs less per unit than a large driveway that requires demolition, tight access through a side yard, and decorative borders — even when both projects use the same square footage as a starting point. The variables below are what actually move a number, which is why a site-specific estimate is more useful than a generic per-square-foot rate.

Each variable below changes scope in a different way. Understanding them helps you compare estimates and see why one quote may differ from another for what looks like the same project.

Project Size

Larger slabs require more concrete, more labor, and more forming, but they also benefit from efficiency of scale. A small pour still requires mobilization, setup, and cleanup, so the per-square-foot cost of a compact slab is often higher than a large one even though the total is lower.

Concrete Thickness

Thicker slabs use more concrete and may require more base preparation to support the added load. A driveway carrying vehicle weight is typically thicker than a pedestrian walkway, and a slab supporting equipment is thicker still. Thickness is matched to the intended use rather than applied universally.

Existing Concrete Removal

Replacing an existing surface means demolishing, loading, and hauling away the old concrete before any new work begins. Removal adds labor, equipment, and disposal costs that a new pour on raw ground does not carry.

Excavation & Base Preparation

The subgrade beneath a slab determines how well it resists settlement. Excavation to the right depth, compaction of the subgrade, and a properly prepared base all add scope — and skipping them is the most common reason a slab fails early.

Site Access

A wide-open backyard reachable by a concrete truck costs less to pour than a site where material must be wheeled or pumped through a narrow side yard. Difficult access adds labor time, equipment, and sometimes a pump truck.

Reinforcement

Reinforcement — rebar, wire mesh, or fiber — is used where appropriate for the application and loads. A slab carrying vehicles or equipment typically uses more reinforcement than a light-use patio, and that material and labor is part of the estimate.

Finish Type

A standard broom finish is the most economical. Stamped concrete, exposed aggregate, colored concrete, and decorative borders each add labor, material, and detail work, and the complexity of the pattern increases scope further.

Drainage & Grading

Grading a slab so water sheds correctly, adding drainage features, or correcting a site that currently pools water all add scope. Drainage is not optional on exterior concrete in Maryland — it is what keeps a slab from deteriorating prematurely.

Forms & Complex Layouts

Curved forms, multiple angles, steps, landings, and integrated features all require more forming labor than a simple rectangle. The more complex the layout, the more time the formwork takes.

Project Type

A residential driveway, a commercial parking area, a warehouse floor, and a retaining wall each have different load, drainage, and finish requirements. The project type drives the thickness, reinforcement, and finish — and therefore the cost.

A concrete estimate is built by walking through the project the way it will actually be constructed. Each step adds a scope line, and the total reflects the real work the project requires rather than a flat rate applied to square footage.

A Typical Estimating Sequence

• Measure the project area and confirm dimensions
• Determine the intended use and required load
• Inspect the existing surface and identify demolition needs
• Evaluate site access for trucks and equipment
• Plan excavation and base preparation
• Calculate concrete volume for the slab thickness
• Determine forming requirements for the layout
• Evaluate reinforcement needs for the application
• Choose the finish and any decorative options
• Account for grading and drainage work
• Calculate labor and equipment time
• Include disposal and haul-away where applicable
• Sequence the project for curing and reopening to use

How Project Type Changes the Estimate

A simple slab on open ground has a short estimating path — measure, excavate, form, pour, finish. A replacement project adds demolition, disposal, and base evaluation. A decorative project adds pattern, color, and sealing steps. A repair project focuses on diagnosis and the specific repair method. A commercial project adds phasing, heavier reinforcement, and operational coordination. Each path produces a different estimate even when the square footage is similar.

Different concrete projects carry different cost drivers. The table below summarizes the unique pricing factors for common project types — the detail lives on each dedicated service page.

For the specific cost factors on each, see the dedicated driveway cost guide, patio cost guide, and concrete repair cost guide linked below.

Information to Gather Before You Request an Estimate

• Approximate dimensions of the area to be poured or repaired
• Intended use — vehicles, foot traffic, equipment, recreation
• Photographs of the existing surface and any damage
• Notes on site access limitations — narrow side yards, slopes, overhead lines
• Identified drainage problems or standing water
• Desired finish — broom, stamped, exposed aggregate, decorative
• Whether existing concrete must be removed
• Equipment or structure specifications where relevant
• Project timing needs or deadlines
• Approved plans where structural work is involved

Questions to Ask During an Estimate

• What is included in the demolition and removal scope?
• What base preparation is planned for the slab?
• What finish is included in the quoted price?
• What variables could change the final scope?
• What curing and use restrictions should I expect?

For project-specific cost detail, see our driveway cost guide, patio cost guide, and concrete repair cost guide. To request an estimate, visit our contact page.