Monticello Construction LLC
“They explained everything clearly, completed the job on time, and left the property spotless.”
Best Concrete Contractors in Gaithersburg, MD
15 companies listed · 5 in Gaithersburg · 1 open 24/7 · 12 open weekends · all 15 rated 4.5+
Data verified October 18, 2026
MEK Concrete & Outside Services
“Elinton excellent understanding of his trade, not only technical, but artistic (The finished look) was exemplified in this job.”
Rolyn Contractor LLC
“He was very nice and kind guy.”
Cast Stone Designs
“They custom made my pieces to perfection (despite that I have no idea what I'm doing) and everything fit together absolutely perfectly and my job was completed in two hours.”
Casey Construction Group
“Casey Construction Group is the place to go for your construction needs!”
Marble Polishing Experts
“Excellent company to work with Showed up on time and did a awesome job refinishing our terrazzo floor”
Listed for homeowners in and around Gaithersburg, MD, these 15 companies pour and repair concrete. What each one says about finishes, sealing and removing an old slab comes from its own website; the ratings and comments on this page come from public reviews.
Area overview: Gaithersburg, MD
5 of the 15 companies we list are based in Gaithersburg; the other 10 serve Gaithersburg from towns including Rockville (5 mi), Derwood (3 mi) and Germantown (4 mi). The companies on this page are rated from 4.6 to 5.0 across 1,324 reviews; 7 have 50 or more reviews. When customers rate these companies on specific qualities, they most often praise quality (88%), professionalism (86%) and value (77%). 1 is open around the clock; 11 are open on Saturdays and 4 on Sundays. The services the companies on this page list most often on their websites are concrete (3), construction (2), painting (2) and remodeling (2). 7 show a license on their websites. 5 have ten or more years of experience, the longest 15 years. 1 offers emergency call-outs; 2 offer financing or payment plans; 11 give free estimates; 3 are family- or locally-owned and 1 lists coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for all 15 of the companies on this page; 12 publish a contact page and 13 list a public email. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Do any of these crews list weekend hours?
Weekend hours show on 12 of the 15 listings here. Pours get scheduled around weather and the batch plant rather than around office days, so weekend hours usually mean someone answers the phone, not that trucks are rolling on Sunday morning.
Contech Paving
“We talked about what we wanted for our driveway and Sam drew up the quote and gave us his professional opinion about what works vs what doesnt work.”
Blue Collar Scholars Landscaping and Construction
“Blue Collar Scholar were very communicative and collaborative and when the work began, Matteo and the crew were extremely hardworking and friendly.”
XL Service LLC
“From start to finish, XL Service did a very good job replacing my driveway and walkway.”
Original Hardscape
“They were all so friendly, accommodating, professional, and did great work.”
Beyond Waterproofing and Foundation Repair
“We contacted Beyond Waterproofing on a Monday evening about a leak in our basement, they came for the estimate that Wednesday and completed the project the next Tuesday.”
Top Remodeling
“They did an great job on our basement and we were pleased with the results!”
Milla Construction
“They went through all the proper permitting channels, followed MoCo requirements, were communicative every step of the way, and did high-quality work.”
Deco America
“We have completed several project with Fuad at Deco America and have had great experiences every time.”
Blue Rock Remodeling Inc
“Very professional and I would 💯 use them again.”
Why these companies made our list
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