If you’re in the market for a new HVAC system for your home or office, you’ll first need to find a reputable contractor who can help you select the best size, brand and model without upcharging you for things you don’t need. Having a relationship with a knowledgeable HVAC specialist can also save you money over time by keeping your investment in top shape with a preventive maintenance plan.


What factors can you use to tell if an HVAC contractor is reliable, responsible and will take excellent care of your property? We’ve put together a guide to help you select a service provider you can trust.

Research and Reference Checking 

Calling the first HVAC company that mails you a colorful flyer could lead you to spend extra on “specials” designed to attract more business. Savvy homeowners know that it’s crucial to do some homework before hiring someone for HVAC installation and repairs.


While you can start vetting companies by looking up online reviews, these don’t always provide the most realistic expectations of previous customer experiences. Checking a potential contractor’s references is the best way to understand what working with them will be like.


Don’t be shy about asking for at least three references. A contractor who puts customers first, communicates clearly and is proud of their work will be happy to put you in touch with clients who have hired them in the past.


Questions to ask references include:


  • Did your technician arrive on time?
  • How long did it take to complete the job?
  • Was the specialist respectful of your property?
  • Did any issues occur to warrant a follow-up repair? If so, how did the company respond?
  • Would you work with this business again?

Licensing and Insurance 

Before hiring an HVAC contractor, ask to see proof of licensure and insurance. Delaware requires HVAC professionals to earn a license, which requires rigorous training and hours of practical, hands-on experience. It signifies dedication to excellence and a commitment to upholding high safety standards.


Licensed HVAC contractors have a broad knowledge base, allowing them to perform a thorough investigation to quickly pinpoint and resolve the root of your HVAC issue. They also know how to choose manufacturer-approved parts for your system and install them correctly, without voiding your warranty.


Licensed experts always stay up to date with state and local regulations and building codes, and they know which work requires permits. Additionally, they can calculate the perfect HVAC unit size for your property’s square footage, which is crucial to ensure it runs smoothly for years.


A valid HVAC insurance policy helps you avoid liability and additional expense. In the rare event that your property or equipment gets damaged, or the technician experiences an on-the-job injury, you will not be responsible for any costs. In that way, working with an insured HVAC technician eliminates unnecessary risks.