Concrete Block Walls by Legacy General Contractor
CONCRETE BLOCK WALLS — CMU CONSTRUCTION & DECORATIVE MASONRY
Concrete masonry unit (CMU) walls provide versatile, cost-effective construction for residential, commercial, and retaining wall applications. We build standard CMU walls, reinforced and grouted block walls, and decorative block walls using split-face, slump, and ground-face block. CMU construction is ideal for interior and exterior walls, partition walls, retaining walls, and commercial structures where durability and fire resistance are priorities.
Starting at $12 per sq ft
Concrete Block Walls Services
Select a service below for pricing, process details, and FAQs.
CMU Block Wall Construction
Structural concrete masonry unit (CMU) block walls for foundations, retaining walls, and commercial buildings. Grouted and reinforced to code.
From $12 per face sq ft
Learn MoreDecorative Concrete Block Walls
Split-face, ground-face, colored, and textured architectural block for visible walls, screen walls, and privacy fencing.
From $15 per face sq ft
Learn More5 Highlights on Concrete Block Walls
CMU wall construction
residential, commercial, and retaining wall applications using concrete masonry units with proper reinforcement and grouting.
Decorative block options
split-face, slump, and ground-face block for architectural appeal with the strength of masonry construction.
Fire-resistant construction
CMU walls provide excellent fire resistance ratings for commercial and residential applications.
Cost-effective for large wall areas
block construction can be more economical than poured concrete for certain applications.
Why Choose Our Concrete Block Walls
CMU construction requires skilled masons who understand proper laying techniques, reinforcement placement, and grouting procedures.
We build both structural and decorative block walls, matching the right block type and finish to your project requirements.
All CMU walls include proper reinforcement (vertical rebar and horizontal joint reinforcement), grouting, and cap/coping installation.
Signs You Need Concrete Block Walls
1. Need fire-resistant wall construction
CMU walls provide 2-4 hour fire resistance ratings, making them ideal for commercial, industrial, and multi-family construction.
2. Want decorative masonry appearance
Split-face and ground-face block provide textured, architectural finishes that don't require additional wall covering.
3. Commercial or institutional construction
CMU is the standard wall material for schools, churches, retail, and commercial buildings for its durability and fire resistance.
Our Concrete Block Walls Process
Step 1 — Layout & Foundation
Lay out wall lines on the footing. Verify footing alignment and elevation. Mark rebar dowel locations.
Step 2 — Block Laying
Lay CMU block with proper mortar joints, level, plumb, and string alignment. Install horizontal joint reinforcement every other course.
Step 3 — Vertical Reinforcement & Grouting
Place vertical rebar in designated cells. Fill cells with grout for structural reinforcement.
Step 4 — Cap & Finish
Install cap block, coping, or precast cap. Apply sealant to joints and wall face as specified.
Brands We Use
- Anchor Block — CMU and decorative block products
- Oldcastle APG — masonry block systems
- Spec Mix — pre-blended mortar and grout
FAQs About Concrete Block Walls
What is the difference between CMU and cinder block?
Modern CMU (Concrete Masonry Unit) is made with Portland cement and aggregates, not cinders. The term "cinder block" is outdated. Today's CMU blocks are strong, consistent, and engineered for structural performance.
Do block walls need reinforcement?
Yes. All structural CMU walls require both vertical rebar (in grouted cells) and horizontal joint reinforcement. The reinforcement schedule depends on wall height, loading, and building code requirements.
Pricing
$12 - $35
per sq ft
*Varies by project scope and site conditions.
Related Services
Leave Concrete to the Pros
Because with Legacy General Services,
You Get More Than a Guarantee
When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
Reputation
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
Transparency
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
Efficiency
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Quality
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.