1. Stifel Nicolaus
2017 Industrials Conference June 15, 2017

2. Forward-Looking Statements
This material and related presentation may contain certain forward-looking statements within the meaning of the Private Securities Reform Act of Any such comments are based upon information available to EMCOR management and its perception thereof, as of this date, and EMCOR assumes no obligation to update any such forward-looking statements. These forward-looking statements may include statements regarding market opportunities, market share growth, gross profit, backlog mix, projects with varying profit margins, and selling, general and administrative expenses. These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from the forward-looking statements. Accordingly these statements are no guarantee of future performance. Such risk and uncertainties include, but are not limited to, adverse effects of general economic conditions, changes in the political environment, changes in the specific markets for EMCOR’s services, adverse business conditions, availability of adequate levels of surety bonding, increased competition, unfavorable labor productivity and mix of business. Certain of the risks and factors associated with EMCOR’s business are also discussed in the Company’s 2016 Form 10-K and in other reports filed from time to time with the Securities and Exchange Commission. All these risks and factors should be taken into account in evaluating any forward-looking statements.

3. EMCOR Group
Leading specialty construction, building and industrial services provider
2017 estimated revenues $7.5B - $7.6B
~34,000 employees

4. Significant expertise in project execution and service delivery
Why EMCOR
Significant expertise in project execution and service delivery
Excellence in managing skilled labor
Disciplined and effective cost management
Broad array of services delivered into growing end markets
Platform for earnings growth
Strong and liquid balance sheet
Flexibility for organic growth, acquisitions and share repurchases
History of consistent cash generation
Cash flow ± net income

5. EMCOR GROUP, INC. Leading Market Position Across all Businesses
2016 Revenue: $7.6B
CONSTRUCTION
SERVICES
EMCOR UK
2016 Rev: $0.3B
U.S.
MECHANICAL
CONSTRUCTION
2016 Rev: $2.7B
U.S.
ELECTRICAL
CONSTRUCTION
2016 Rev: $1.7B
U.S.
BUILDING
SERVICES
2016 Rev: $1.8B
U.S.
INDUSTRIAL
SERVICES
2016 Rev: $1.1B

6. CONSTRUCTION – U.S. Leading Specialty Construction Contractor
Sheet Metal
HVAC
Process Piping
Fire Protection
High Purity Piping
Plumbing
Low Voltage
Voice & Data
Lighting
Security / Alarm
Transmission & Distribution
High Voltage

7. BUILDING SERVICES – U.S. Leading National Provider of Building Services
National HVAC Services
Building Control Systems
Retrofit Projects
Repair Services
Service Agreements
Operations & Maintenance
HVAC Services
Retrofit Projects
Preventative Maintenance
Energy Efficiency Upgrades
Base Operations
Facilities Management
IDIQ Projects
Operations & Maintenance
Supplier Management

8. Leading Provider of Refinery / Petrochemical Turnaround Services
U.S. Industrial Services
Leading Provider of Refinery / Petrochemical Turnaround Services
Heat Exchanger Service / Fabrication
Embedded Contracts
Turnaround Services
Heat Exchangers, including HF Alky Units
Fluid Catalytic Cracking Units
Coking Units
Specialized Welding
Field Services
Maintenance Capital Projects

9. Balanced Revenue Distribution
Source
Geography
14% 4%
34%
31%
96%
21%
($ Millions)
2016 Revenues
$7,226
326
$7,552
U.K.
United States
($ Millions)
2016 Revenues
New Construction
$2,524
1,586
2,375
1,067
$7,552
Retrofit & Renovating
Building Services (Incl. UK)
Industrial Services

10. Service Revenue is Growing as a Percent of Total Revenue
($ Millions)
~$7,600
~$7,500 -
$7,552
2016 service revenue $3.4 billion or 45%
Recurring service revenue base under more cyclical construction business
$6,719
$6,195
$6,334
$6,425
$5,450
$4,698
45%
49%
48%
45%
45%
45%
42%
Service
Construction

11. Backlog by Market Sector
($ Millions)
$3,903
$3,974
$4,000
$3,000
$2,000
$1,000 $0
$3,771
$3,634
$3,302
$3,344
$3,224
$2,953
2010
2011
2012
2013
2014
2015
2016
2017 –
Qtr. 1
Commercial
Hospitality
Industrial
Healthcare
Institutional
Transportation
Water & Wastewater

12. Backlog by Segment Mechanical Electrical Building Services
($ Millions)
$3,903
$3,974
$4,000
$3,000
$2,000
$1,000 $0
$3,771
$3,634
$3,302
$3,344
$3,224
$2,953
2010
2011
2012
2013
2014
2015
2016
2017 –
Qtr. 1
Mechanical
Electrical
Building Services
Industrial Services
EMCOR UK

13. Key Financial Data – Income Statement
($ Thousands, except per share information)
(Unaudited)

14. Key Financial Data – Balance Sheet
($ Thousands)

15. Non-residential construction market expected to grow mid-single digits
2017 Outlook
Non-residential construction market expected to grow mid-single digits
Backlog growth positive for Domestic Construction
Building Services will benefit from continued growth in retrofit and energy savings projects
Industrial Services:
Solid Spring turnaround season
Continued headwinds in “new build” heat exchanger fabrication
Strong and liquid balance sheet

16. 2017 Guidance