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This is an excellent opportunity for a student pursuing a degree in Accounting, Finance, or Business Administration who wants meaningful real-world accounting experience beyond basic administrative tasks. This internship offers hands-on experience in accounting operations, payroll support, accounts payable/receivable, job costing, and construction accounting within a fast-paced HVAC environment.

HOUR

Summer Accounting InternDuration: May 2026 - August 2026Schedule: Part-Time or Full-Time Summer InternshipCrystal Heating & Cooling Service, Inc. is seeking a motivated and detail-oriented Summer Accounting Intern to support our Accounting Department during our busy summer season. This internship offers hands-on experience in accounting operations, payroll support, accounts payable/receivable, job costing, and construction accounting within a fast-paced HVAC environment.This is an excellent opportunity for a student pursuing a degree in Accounting, Finance, or Business Administration who wants meaningful real-world accounting experience beyond basic administrative tasks.Key Responsibilities<ul><li>Assist with Accounts Payable processing, invoice entry, and vendor file maintenance.</li><li>Support Accounts Receivable activities, including customer payment application and collections follow-up</li><li>Help reconcile credit card statements, bank transactions, and general ledger accounts</li><li>Assist with payroll preparation, reporting, and audit support</li><li>Support construction and union-related accounting functions, including equality funds processing, union reporting, prevailing wage documentation, and compliance tracking</li><li>Suppothe rt month-end close processes and preparation of journal entries</li><li>Organize and maintain accounting and employee documentation</li><li>Assist with job costing and financial data entry in ServiceTitan and QuickBooks</li><li>Prepare spreadsheets, reports, and financial analysis using Microsoft Excel</li><li>Support internal process improvement and special accounting projects</li><li>Assist with filing, scanning, and maintaining accurate accounting records</li><li>Maintain confidentiality of sensitive financial and employee information</li></ul>Qualifications<ul><li>Currently pursuing an Associate's or Bachelor's degree in Accounting, Finance, or Business Administration.</li><li>Basic understanding of accounting principles and financial statements</li><li>Strong attention to detail and organizational skills</li><li>Proficient in Microsoft Excel and Microsoft Office Suite</li><li>Ability to prioritize tasks and work independently in a deadline-driven environment</li><li>Strong communication and professionalism</li><li>Willingness to learn and take initiative</li></ul>Preferred Qualifications<ul><li>Prior office, bookkeeping, or internship experience preferred but not required.d</li><li>Experience with QuickBooks, ServiceTitan, or ERP/accounting systems is a plus.</li><li>Interest in construction, HVAC, or operational accounting environments</li></ul>What You'll Gain<ul><li>Hands-on accounting and finance experience in a growing company</li><li>Exposure to real-world month-end close and financial reporting processes</li><li>Experience with job costing and operational accounting</li><li>Exposure to union, prevailing wage, and construction compliance accounting processes is rarely offered in traditional internships</li><li>Mentorship from experienced accounting leadership</li><li>Opportunity to build professional skills in communication, organization, and problem-solving</li></ul>Compensation<ul><li>Paid internship ($18-$22/hour based on experience)</li><li>Flexible scheduling available</li></ul>About Crystal Heating & Cooling Service, Inc.Crystal Heating & Cooling Service, Inc. is a 100% employee-owned (ESOP) HVAC company serving residential and commercial customers throughout Missouri. We are committed to teamwork, integrity, growth, and delivering exceptional service to our customers and employees alike.

Crystal Heating and Cooling

Summer Accounting Intern

Accounting

Accounting Close

Accounting Policies

Accounting Software

Accounts Payable

Accounts Receivable

Administrative Skills

Billing

Bookkeeping

Business Administration

Communication Skills

Construction

Construction Support

Credit Cards

Credit and Collections

Customer Support/Service

Data Entry

Detail Oriented

Documentation

ERP (Enterprise Resource Planning)

Establish Priorities

File Maintenance

Finance

Financial Analysis

Financial Reporting

Financial Statements

Financial Transactions

General Ledger Accounting

HVAC

Intuit Quickbooks

Journal Entries

Leadership

Maintain Compliance

Maintenance - HVAC

Mentoring

Microsoft Excel

Microsoft Office

Operational Support

Organizational Skills

Payroll Accounting

Problem Solving Skills

Process Improvement

Reconciliation

Record Keeping

Reporting Skills

Service Delivery

Spreadsheets

Team Player

Time Management

Talent Acquisition

In this role, you will work closely with accounting leadership to ensure payroll accuracy, maintain compliance requirements, support financial reporting, and contribute to the overall financial health of the organization. Crystal Heating & Cooling has proudly served the Greater St. Louis area since 1965 and continues to grow as an employee-owned leader in HVAC service and construction.

YEAR

Construction Payroll & Accounting Specialist Crystal Heating & Cooling Greater St. Louis Area, MOPay: $50,000-$70,000 annually, depending on experience Schedule: Monday-Friday | 7:30 AM-4:30 PM (flexibility during payroll and reporting cycles)Build Your Career with an Employee-Owned Company That Invests in Its PeopleCrystal Heating & Cooling has proudly served the Greater St. Louis area since 1965 and continues to grow as an employee-owned leader in HVAC service and construction. As an ESOP company, employees share in the long-term success of the business while building stable, rewarding careers. We are seeking a Construction Payroll & Accounting Specialist to support payroll operations, accounting processes, and compliance reporting in a dynamic service and construction environment.This opportunity is ideal for an accounting professional who enjoys balancing payroll administration with broader accounting responsibilities. In this role, you will work closely with accounting leadership to ensure payroll accuracy, maintain compliance requirements, support financial reporting, and contribute to the overall financial health of the organization. Experience with certified payroll, prevailing wage reporting, union reporting, or construction accounting environments is highly valued.Why Work With Us • Competitive salary of $50,000-$70,000 based on experience • 100% employer-paid health, dental, and vision insurance for employees • Family coverage available through pre-tax payroll deductions • Employee Stock Ownership Plan (ESOP) providing long-term retirement value • 10-25 days of PTO based on tenure • 7 paid holidays annually • Stable, employee-owned company with long-term career opportunities • Annual employee appreciation and family eventsAbout the Role This position combines payroll administration, accounting support, and compliance coordination within a construction and service organization. You will own weekly payroll processing and support general accounting activities while helping ensure compliance with certified payroll, labor requirements, reporting standards, and internal financial controls. Success in this role requires accuracy, organization, attention to detail, and the ability to manage multiple deadlines.Key Responsibilities • Process weekly payroll including time review, reconciliation, PTO tracking, and payroll accuracy controls • Prepare certified payroll, prevailing wage documentation, union reporting, and fringe benefit administration • Support payroll accounting activities including journal entries, labor allocations, reconciliations, and reporting • Assist with month-end close, audit preparation, and financial reporting activities • Maintain payroll and accounting records while ensuring compliance with labor and reporting requirements • Coordinate payroll-related administration including garnishments, unemployment claims, benefits changes, and employee updates • Track and maintain company licenses, insurance documentation, certifications, and compliance records • Partner with accounting leadership to improve processes and maintain accurate financial dataWhat You Bring • 3+ years of experience in payroll, accounting, bookkeeping, staff accounting, or financial administration • Experience in construction payroll, certified payroll, prevailing wage, union payroll, or compliance reporting strongly preferred • Understanding of payroll accounting, reconciliations, and financial recordkeeping • Experience with accounting software; QuickBooks experience preferred • Strong Excel skills with the ability to organize and analyze payroll and financial data • Familiarity with general ledger processes and financial reporting • Strong attention to detail and ability to manage confidential information • Bachelor's degree in Accounting, Finance, Business Administration, or equivalent experience preferredIf you are looking for a stable accounting opportunity where your work directly impacts company performance and long-term success, we encourage you to apply.Apply today. Please no calls. All candidates must apply online.

Accounting Specialist – Construction Payroll & Compliance

Compensation and Benefits

Data Quality

Dental Insurance

Employee Benefits

Financial Administration

Financial Control

Insurance Certifications

Insurance Documentation

Operations Processes

Payroll Administration

Payroll Management

Regulatory Compliance

Unemployment Benefits

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Summer Accounting Intern Crystal Heating and Cooling

Accounting Specialist – Construction Payroll & Compliance Crystal Heating and Cooling

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