Industrial and Commercial HVAC Repair Service in Dayton, Cincinnati, and Columbus, OH Areas

24-hour Emergency Response Service | Free Estimates | OSHA Certified
For Service Call (800) 274-5098

24-hour Emergency Response Service 
Free Estimates 
OSHA Certified

(937) 572-5844

Providing Commercial and Industrial HVAC Systems to Dayton Since 2000

Welcome to CJH Mechanical Inc! If you're a facility manager, building owner, or general contractor, you know the importance of working with an expert HVAC mechanical contractor. CJH Mechanical Inc is your best choice for a full range of professional heating, ventilation, and air conditioning services. For a free estimate, call or text (937) 572-5844.

Let CJH Mechanical Inc Help You Save on Heating and Cooling

When it comes to commercial HVAC repair in Dayton, OH, don't DIY any fixes to your business' system. It's best to hire professionals to take care of repairs when necessary. Here's why:


  • Experience. With years of experience under our belts, our team is prepared to provide you with HVAC repair services at a moment's notice.
  • Skill. Every team member is extensively trained to ensure your HVAC system is handled with the utmost care.
  • Equipment. We only use high-quality tools and equipment to repair your HVAC system. If it needs a replacement, we have top-quality parts and brand-new systems available to you.
  • Time and money savings. Commercial HVAC systems are complex. You will save time and money by hiring professionals instead of attempting repairs yourself!
24/7 Service
Fast Response
Free Estimates
Warrantied Work
Price Matching
Years of Experience

HVAC Service Repairs

24/7 emergency services available on your system

Our well-trained and equipped professionals are locked, loaded, and ready to help when you need commercial HVAC repair Dayton, OH businesses can rely on.
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HVAC System Maintenance

Regular maintenance keeps heating and cooling problems at bay

There's no better way to prevent HVAC problems than by ensuring your equipment is properly maintained. 
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High-Efficiency HVAC Replacements

Reduce energy costs and protect the environment

Let CJH Mechanical show you how practicing environmentally safe heating and cooling can also save you money.
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Design-Build HVAC Projects

Proper planning controls costs and achieves results

Take our design-build approach to your next HVAC project and meet your goals for health, safety, and economic benefits. 
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Building Automation and Control

Exercise greater control over the systems in your structure

From indoor temperature levels to lighting and security, you can automate systems throughout your workplace.
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Mechanical Contracting

Establish realistic expectations before you build

Let us help you plan your budget, set your scheduling, and use other management tools that will keep your project moving forward.
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Satisfied Customer Reviews

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Don't let the warm weather creep up on you! Call now to schedule your HVAC system tune-up, upgrade, or replacement.
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CJH Mechanical Inc

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