Concrete Patio Extension

Patio Extensions — West Metro Twin Cities, MN

Expand your outdoor living space with a professionally built concrete patio extension that matches your existing slab and lasts for decades.

Every patio addition we pour meets ACI 332 residential concrete standards and local building codes.

• Seamless slab matching. We color match new concrete to your existing patio using integral pigments and surface treatments, then align finish textures like broom, trowel, or exposed aggregate.
• Proper dowel and rebar tie-ins. Our crews drill and epoxy #4 rebar dowels into your existing slab edge, which prevents differential settling between old and new sections.
• Engineered subgrade preparation. We excavate, compact, and place a crushed stone base before any concrete pour, so your extension resists frost heave and washout.
• Correct control joint placement. We saw cut or tool joints at proper spacing to direct cracking away from visible surfaces.
• Decorative upgrade options. Stamped patterns, broom finishes, colored concrete, and exposed aggregate give you design flexibility beyond plain gray flatwork.

Why choose Legacy

Concrete patio extension is a specialty at Legacy Concrete General Services, and our qualified crews have poured thousands of square feet of residential flatwork across the region. Homeowners choose us because we treat slab additions differently than standalone pours. Tying new concrete into an old patio requires precise elevation matching, correct expansion joint placement, and reinforcement that connects both sections without forcing cracks.

Our licensed and insured team brings that expertise to every project. We hold certifications in concrete flatwork finishing, and our foremen average more than 15 years in the trade. You get a written estimate with fixed pricing, a clear project timeline, and a 1-year workmanship warranty that covers settling, scaling, and structural cracking.

We also stand behind our mix designs. Every patio extension we pour uses a minimum 4,000 PSI air entrained mix, which resists freeze thaw damage far better than the bagged products many handymen rely on. We order from trusted local ready mix suppliers and verify slump on site before placement.

Communication matters too. You'll know when we excavate, when we form, when we pour, and when you can walk on the new surface. Our top-rated reviews reflect that reliability. When you want an affordable concrete patio extension done right the first time, our expert crew delivers.

Signs it's the right call

1. Your patio furniture doesn't fit. A dining set, grill station, and seating area need roughly 300 square feet of usable slab. If chairs hang off the edge or guests stand in the grass, your existing flatwork is undersized for entertaining.
2. You're adding an outdoor kitchen or fire pit. Built-in grills, pizza ovens, and fire features require a stable concrete foundation with adequate bearing capacity. Pavers shift under heavy point loads. A poured extension gives these installations a permanent, level base.
3. Mud and erosion border your slab. Bare soil at the patio perimeter turns to mud after rain and tracks into the house. Extending the slab covers problem areas, improves drainage with proper slope, and directs runoff away from your foundation.
4. A new hot tub or pool needs support. A filled hot tub can weigh over 5,000 pounds. That load demands a reinforced slab with a compacted base, not soil or gravel. We pour extensions with thickened edges and welded wire reinforcement sized for spa loads.
5. You're planning to sell. Expanded outdoor living space ranks among the top features buyers request. A well matched patio addition improves curb appeal and delivers a strong return compared to other exterior projects.

If any of these describe your backyard, a professional concrete patio extension solves the problem permanently.

Our process

1. Site evaluation and estimateWe measure your existing slab, check its condition, assess drainage, and discuss finish options. You receive a detailed written quote within 48 hours.
2. Layout and excavationWe mark the extension footprint, call in utility locates, and excavate to the proper depth. Crews remove sod, roots, and soft soil.
3. Base and formingWe place and compact 4 inches of crushed stone, then set forms to match your existing slab elevation with a 2 percent slope for drainage.
4. Reinforcement and tie-inWe drill dowel holes into the old slab edge, epoxy rebar dowels in place, and lay reinforcement across the new section.
5. Pour and finishWe place the concrete, screed it level, and apply your chosen finish. Control joints go in the same day.
6. Cure and sealWe apply curing compound immediately, then return to seal the surface once the concrete reaches strength. You can walk on it in 48 hours and place furniture in 7 days.

Brands and materials we use

Safety guides every material choice we make. Our crews follow OSHA standards on every jobsite, wear proper PPE during placement and finishing, and handle admixtures and sealers according to manufacturer data sheets. We barricade fresh pours, post signage, and keep your family and pets clear of wet concrete until it cures safely.

Completed projects

Frequently asked questions

Where we install

Patio Extensions available throughout the West Metro Twin Cities, including Maple Grove, Rogers, Plymouth, Brooklyn Park, Champlin, Osseo and surrounding communities.