EMCOR vs. MasTec: Which Infrastructure Stock Offers More Growth?

2026.10.23 14:25 (GMT+0)

EMCOR vs. MasTec: Which Infrastructure Stock Offers More Growth?

The growing investments in data centers and mission-critical infrastructure are creating a diversified market exposure for firms like EMCOR Group, Inc. EME and MasTec, Inc. MTZ. Customers are increasing investments in data centers, AI infrastructure, communications networks and other mission-critical facilities, creating demand for contractors with the skilled workforce and operational capabilities to deliver complex projects efficiently. However, project funding volatility, elevated inflation and ongoing geopolitical uncertainties are concerning for the near-term prospects to some extent.

EMCOR offers mechanical and electrical construction, industrial and energy infrastructure services for a diverse range of businesses, serving commercial, industrial, utility and institutional clients in the United States. MasTec engages in the engineering, building, installation, maintenance and upgrade of energy, communication and utility infrastructure and is working to expand its margins and improve execution.

Let’s compare the fundamentals of the two infrastructure stocks to determine which one has better upside potential.

The Case for EMCOR Stock

EMCOR’s U.S. construction business is benefiting from robust demand for data centers, AI infrastructure, network and communications, healthcare, and water and wastewater projects. In the first half of 2026, company-wide revenues rose 19.7% year over year to $9.78 billion, reflecting strong activity across its businesses. As of June 30, 2026, RPOs reached $17.14 billion, up 43.9% year over year and 29% from December 2025, with approximately 95% of the growth attributed to organic demand. Investments in prefabrication, construction technologies, workforce training, virtual design and construction, and advanced project planning further support productivity and delivery capabilities on increasingly complex projects.

Besides, EME’s first-half 2026 performance highlights improving operating leverage and disciplined cost management. Strong construction activity, improved Electrical Construction profitability and better Building Services margins supported performance. Beyond market tailwinds, EMCOR’s acquisition strategy is strengthening its electrical construction footprint and expanding its ability to serve complex infrastructure customers. Its 2026 electrical contractor acquisitions—including B&B Electric, Sidney Electric, Giles Electric, Schmidt Electric and Connelly Electric—bring complementary capabilities, geographic reach and access to skilled union labor. Collectively, the acquired businesses generated approximately $625 million in trailing 12-month revenues and $105 million in EBITDA, while management expects $250-$275 million in incremental revenues in the second half of 2026 from the acquisitions.

However, the company faces several macroeconomic and operational risks that could affect project execution, profitability and future growth. Economic and geopolitical uncertainty, changing interest rates and volatility in customer spending may influence construction activity and funding decisions, particularly for large-scale infrastructure and industrial projects.

Inflation in labor, materials, equipment and energy costs may pressure project margins, especially when contractual pricing mechanisms do not fully offset cost increases. Changes in project mix, competitive bidding, tariffs, regulatory requirements and reduced refinery turnaround activity could further affect profitability. Consequently, sustaining margins and converting its record backlog into revenues and cash flow remain key execution priorities.

The Case for MasTec Stock

MasTec is benefiting from strong infrastructure spending trends, especially in AI-related projects such as power delivery, grid modernization, data-center construction, fiber connectivity and related infrastructure. Its record 18-month backlog reached $21.4 billion in the second quarter of 2026, up 30% year over year and 5% sequentially, with Clean Energy & Infrastructure backlog rising 58% year over year to $7.8 billion. Power Delivery backlog also reached a record $6.3 billion, reflecting continued award activity.

Also, MTZ’s acquisition strategy is enhancing its capabilities in attractive, high-growth infrastructure markets while expanding its ability to execute increasingly complex projects. The July 2026 acquisition of The Superior Group is particularly compelling. Superior is expected to contribute $800-$900 million in revenues and $100-$115 million in adjusted EBITDA during the remainder of 2026, making the deal immediately accretive to earnings and cash flow based on management’s preliminary estimates.

However, the ongoing weakness in its Communications segment, macroeconomic and industry-specific uncertainties, and issues in cash flow generation are concerning for near-term prospects. In the second quarter of 2026, MasTec’s Communications segment remains a notable weak spot, with EBITDA declining 11.6% to $73.1 million, while the EBITDA margin contracted 170 basis points to 8.2% from 9.9% a year ago. The deterioration suggests that revenue growth is not translating efficiently into profitability in this business. While management continues to expect Communications revenues of roughly $3.25 billion in 2026, the high-single-digit margin outlook leaves limited room for execution setbacks.

Additionally, MTZ is subject to risks from inflation, interest rates, tariffs, regulatory and policy changes, permitting, supply-chain constraints, labor availability and changes in customer capital-expenditure plans. These risks are particularly relevant because MasTec operates across capital-intensive markets, including clean energy, power infrastructure, communications and pipelines. Weak free cash flow is also another concern for the company.

Stock Performance & Valuation Trend

As witnessed from the chart below, in the year-to-date period, EMCOR’s share price performance has outperformed MasTec and the broader Construction sector.