217-553-8360

Your Full-Service HVAC Contractors in Springfield, IL

Hvac Services

Keeping Springfield Comfortable: More Than Just Heating and Cooling

There’s nothing worse than that sinking feeling when your furnace goes silent in the middle of a January night, or when your air conditioner gives up during a sweltering Illinois summer week. HVAC problems are stressful, expensive, and always seem to happen at the worst possible time. We get it.

That’s where we come in. R.D. Davis Heating and Air Conditioning is a third-generation, family-owned heating and cooling company that has been serving the Springfield community since 1992. For us, this isn’t just a job—it’s our family’s legacy. We’re not just a repair service; we’re your partners for your home’s or business’s total comfort.

Our mission is simple: to provide honest, high-quality work at a fair price. We’re your neighbors, and we believe you deserve a full-service HVAC contractor you can trust for everything from a simple tune-up to a full system installation.

Our Comprehensive HVAC Services

Whether you need a brand-new system for a home you’re building or an emergency repair in the middle of the night, our certified technicians have you covered. We are a full-service HVAC company, which means we handle every aspect of your comfort system.

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Heating Services

We keep your home warm and safe all winter. We specialize in installing high-efficiency Tempstar® furnaces, but our technicians are experts in repairing and maintaining all makes and models.

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Cooling Services

Don’t sweat the Illinois summer. We install, repair, and maintain all types of air conditioners, including top-tier, energy-efficient Samsung® systems, to keep your home cool and comfortable.

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Water Heater Services

Don’t get stuck with a cold shower. We’re your local experts for AO Smith® tank and tankless water heaters, handling everything from new installations to service and repair.

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Maintenance & Emergency Services

The best way to fix a problem is to prevent it. Our preventative maintenance plans keep your system running efficiently. And for when the unexpected happens? We’re here for you 24/7.

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Signs It’s Time to Call a Professional HVAC Technician

It’s easy to ignore a small rattle or a slight change in your utility bill—at least for a little while. But those small annoyances are often your system’s way of warning you that a bigger problem is on the way. If you notice any of these signs, it’s time to give a professional HVAC technician a call.

  • Strange Noises: Banging, whistling, grinding, or loud rattling sounds are never a good sign. Your system is telling you a part is loose, broken, or under stress.
  • Unusual Smells: A musty or dusty smell might mean it’s time for a cleaning or new filter. But a burning or “electrical” smell is a serious issue that needs immediate attention.
  • Rising Energy Bills: Is your utility bill creeping up, even though your habits haven’t changed? That’s a classic sign that your system is losing efficiency and working harder (and costing more) to do the same job. Checking ENERGY STAR® guidelines for efficient products can also be a helpful reference.
  • Uneven Heating or Cooling: Are some rooms “off-limits” because they’re freezing cold in the winter or uncomfortably hot in the summer? That could be a sign of ductwork problems, low refrigerant, or an aging system.
  • Constant Cycling: If your system turns on and off constantly (we call this “short-cycling”), it’s working too hard and failing to complete a full cycle, which causes massive wear and tear.

Our Honest, No-Surprises Process

We believe in clear communication and doing the job right the first time. You’re already stressed about your HVAC – the last thing you need is a high-pressure sales pitch or a surprise on your bill. We’re proud to be a local hvac company that does things differently.

The Call & Diagnosis: When you call us, you’ll talk to someone who understands your problem. We’ll schedule a time that works for you. Our certified technician will arrive on time, listen to your concerns, and perform a full diagnosis of the issue.

Clear, Upfront Pricing: Before any work begins, our technician will explain the problem in plain English and provide you with a clear, honest, upfront quote for the solution. You’ll never get hit with surprise fees.

The Expert Fix: Once you approve the work, our team gets the job done. Our technicians are licensed, certified, and take pride in their work. Whether it’s a simple repair or a full system installation, we treat your home with respect.

The Final Check: We don’t just fix or install your system and run. We clean up our workspace, test the system, and double-check our work to ensure everything is running perfectly and efficiently before we leave.

The R.D. Davis Difference: Custom,
Efficient, Reliable

In a world of one-size-fits-all solutions, we stand out by providing what you actually need. When you choose R.D. Davis, you’re choosing a partner with unique capabilities.

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Custom Solutions with Our In-House Fab Shop: This is our biggest differentiator. Unlike most heating and cooling companies, we own and operate our own full-service sheet-metal fabrication shop. This is a huge advantage for you. It means we can design and create custom ductwork, ventilation, and fittings that are perfectly matched to your home or business. No awkward “close enough” fixes. Just perfect, efficient airflow, which means better comfort and lower bills.

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Peace of Mind, 24/7: HVAC emergencies don’t stick to a 9-to-5 schedule, so neither do we. Our team is on call 24 hours a day, 7 days a week, for emergency heating and cooling services. You’ll never be left in the cold (or the heat).

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Save Money & Extend System Life: A properly installed and maintained system from a certified HVAC contractor isn’t an expense—it’s an investment. It runs more efficiently, lasts years longer, and saves you significant money on your monthly utility bills and future replacement costs.

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Honest Advice from a Local Family: As a third-generation family business, our reputation in the Springfield community is everything. We’re not a massive, faceless corporation. We’re your neighbors. Our technicians are focused on finding the right solution, and they’ll never pressure you into a service or replacement you don’t need.

Serving Springfield’s Homes & Businesses

We are proud to be a local company, with a service area that covers the entire greater Springfield region.

  • Residential HVAC Contractors: For homeowners, we are your all-in-one partner for total home comfort. We provide expert service to homes within 20 miles of Springfield, including Chatham, Rochester, Sherman, and beyond. From historic homes that need custom ventilation to new builds needing a full system, we do it all.
  • Commercial HVAC Companies: We provide reliable, robust, and responsive HVAC services for businesses within a 40-mile radius of Springfield. We understand that a comfortable and safe environment is crucial for your employees and customers, and we’re the partner you can count on.

Why Our Customers Choose Us

For us, it’s personal. We’ve built our business on trust, and we’re proud of the reputation we’ve earned in our community.

  • A Legacy of Trust: We’re not a fly-by-night company. We are a 3rd-generation, family-owned business that has proudly served the Springfield area since 1992.
  • Certified & Authorized: We are a Tempstar® Authorized Dealer, known for its outstanding reliability. Our licensed HVAC technicians are also trained to service and repair all major makes and models.
  • In-House Expertise: Our custom sheet-metal fabrication shop gives us a level of quality control and flexibility that other local HVAC companies simply cannot match.
  • Flexible Financing Options: We don’t want budget concerns to stop you from getting a safe and efficient system. We’ve partnered with both Foundation Finance and Wells Fargo to offer reasonable and flexible financing options, making your upgrade or replacement more manageable.

Here’s What Your Neighbors Are Saying:

"I see these trucks all around town and so I gave them a call the other day. Great experience! Showed up on time, was careful parking the big truck in front of my house (tearing up grass is a common issue on my street), and SUPER fast and friendly service! Charged me a reasonable rate for a repair (I have since looked more into the pricing on this type of thing) and let me know of some recommendations he had...but wasn’t pushy. Very appreciative of this company. Seem honest and responsible!"

- Jason Z.

"great guy's trying to improve there community and always willing to help others out."

- Billy T.

"Honest and reliable!!! Won't sell you something you don't need!!!"

- Bob H.

Frequently Asked HVAC Questions

We believe an educated customer is the best customer. Here are a few answers to some of the most common questions we hear.

Are you licensed, bonded, and insured?
Absolutely. We are fully licensed, bonded, and insured in the state of Illinois for your protection and peace of mind. We believe this is the very first thing you should ask any contractor before you let them in your home.
How do you determine whether a repair or replacement is needed?
This is a great, and very important, question. We're not here to sell you a new system you don't need. Our technicians will always give you an honest, transparent assessment based on your system's age, the specific problem, the cost of the repair, and its overall efficiency. We'll give you clear options and our professional recommendation, but the final decision is always yours.
What size HVAC system do I need for my home?
"Bigger is better" is one of the biggest myths in the HVAC world. The right size depends on a proper "load calculation" that factors in your home's square footage, insulation, window quality, and more. A system that's too big will short-cycle, failing to remove humidity and wearing itself out. A system that's too small will run constantly and never keep up. We'll do the math to find the perfect, most efficient fit for your home.
How often do I really need HVAC maintenance?
We can't stress this enough: preventative maintenance is the single best way to save money and prevent breakdowns. We strongly recommend having your system professionally serviced twice a year. A spring tune-up for your air conditioner (before you need it) and a fall tune-up for your furnace (before it gets cold) is the ideal schedule. This preventative care catches small problems, improves efficiency, and can dramatically extend the life of your equipment. You can read more about best practices on the U.S. Department of Energy's website.

Get Honest Service From Springfield’s Trusted
HVAC Team

Don’t wait for a small issue to become a major, expensive headache. Whether you need a simple preventative tune-up, a 24/7 emergency repair,
or a free, no-pressure estimate on a new system, our family and our team are here to help.

Call us for 24/7 emergency service or schedule your appointment today.