Design-Air Heating & Air Conditioning

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Design-Air Heating & Air Conditioning Design-Air provides courteous, professional, on-time HVAC services that improve the comfort and heal Turn to the Experts at Design-Air.

Design-Air can also provide a geothermal alternative to traditional heating and cooling systems. WaterFurnaceยฎ geothermal comfort systems, provide up to 75% lower operating costs, safe, clean, and quiet operation, are environmentally sound, and provide reliable operation. With hundreds of WaterFurnaceยฎ systems installed, Design-Air has the knowledge and experience to provide you with an environmentally sound geothermal system for your heating and cooling comfort. When it comes to your family or business, you want dependable air conditioning and heating systems that provide you with value as well as comfort. Whether itโ€™s a new installation or routine service, our trained and highly experienced technicians have the knowledge your comfort depends on.
โ€ข Carrier Factory Authorized Dealer
โ€ข WaterFurnace GeoPro Master Dealer
โ€ข NATE certified technicians
โ€ข Member Metro Decatur Home Builders Association
โ€ข Member Decatur Chamber of Commerce
โ€ข Member GAOI (Geothermal Alliance of Illinois)

HVAC trivia: It stands for heating, ventilation, and air conditioning. Three parts of one big goal: helping your indoor ...
10/14/2026

HVAC trivia: It stands for heating, ventilation, and air conditioning. Three parts of one big goal: helping your indoor space feel comfortable.

Call 217.429.1105 | https://designairhvac.com/

Illinois weather likes to keep us guessing. If the first cold morning catches your heating system off guard, call Design...
10/12/2026

Illinois weather likes to keep us guessing. If the first cold morning catches your heating system off guard, call Design-Air for furnace service.

Call 217.429.1105 | https://designairhvac.com/

When youโ€™re investing in your homeโ€™s heating and cooling system, quality matters. Carrier has a long history of innovati...
10/09/2026

When youโ€™re investing in your homeโ€™s heating and cooling system, quality matters.

Carrier has a long history of innovation and is known for building dependable, efficient comfort solutions designed to perform season after season.

๐€๐ญ ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐ , ๐ฐ๐žโ€™๐ซ๐ž ๐ฉ๐ซ๐จ๐ฎ๐ ๐ญ๐จ ๐จ๐Ÿ๐Ÿ๐ž๐ซ ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐ฌ๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ ๐›๐ž๐œ๐š๐ฎ๐ฌ๐ž ๐ฐ๐ž ๐›๐ž๐ฅ๐ข๐ž๐ฏ๐ž ๐จ๐ฎ๐ซ ๐œ๐ฎ๐ฌ๐ญ๐จ๐ฆ๐ž๐ซ๐ฌ ๐๐ž๐ฌ๐ž๐ซ๐ฏ๐ž ๐ž๐ช๐ฎ๐ข๐ฉ๐ฆ๐ž๐ง๐ญ ๐ญ๐ก๐ž๐ฒ ๐œ๐š๐ง ๐œ๐จ๐ฎ๐ง๐ญ ๐จ๐ง.

Ready to upgrade your home comfort? Give Design-Air a call and ask about Carrier!

Check your filter, keep supply and return vents clear, review thermostat settings, and schedule seasonal maintenance. A ...
10/07/2026

Check your filter, keep supply and return vents clear, review thermostat settings, and schedule seasonal maintenance. A little attention now helps you head into colder weather prepared.

Call 217.429.1105 | https://designairhvac.com/

Cooler mornings are a good reminder to schedule furnace maintenance. Let Design-Air help your Decatur home get ready for...
10/05/2026

Cooler mornings are a good reminder to schedule furnace maintenance. Let Design-Air help your Decatur home get ready for heating season.

Call 217.429.1105 | https://designairhvac.com/

Cooler mornings, changing leaves, and cozy nights are signs that autumn is here! Before winter arrives, make sure your H...
09/28/2026

Cooler mornings, changing leaves, and cozy nights are signs that autumn is here! Before winter arrives, make sure your HVAC system is prepared to handle the season ahead.

๐€ ๐ฉ๐ซ๐จ๐Ÿ๐ž๐ฌ๐ฌ๐ข๐จ๐ง๐š๐ฅ ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐œ๐ก๐ž๐œ๐ค-๐ฎ๐ฉ ๐Ÿ๐ซ๐จ๐ฆ ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  ๐œ๐š๐ง ๐ก๐ž๐ฅ๐ฉ:
๐Ÿ”ฅ Ensure your furnace is operating properly
๐Ÿ”ฅ Improve system reliability
๐Ÿ”ฅ Identify worn or damaged components
๐Ÿ”ฅ Keep your home comfortable when temperatures drop

Routine maintenance is one of the best ways to protect your investment and enjoy dependable comfort all season long.
Whether you need furnace maintenance, repairs, or heating services, ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  is ready to help!

๐Ÿ“ž Call 217.429.1105 to schedule your service today.
๐ŸŒ https://designairhvac.com/

Your furnace works hard to keep your home warm; make sure itโ€™s ready before the temperatures drop!Routine furnace mainte...
09/25/2026

Your furnace works hard to keep your home warm; make sure itโ€™s ready before the temperatures drop!

Routine furnace maintenance from ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  can help your system perform at its best and prepare for the demands of the heating season.

๐๐ž๐ง๐ž๐Ÿ๐ข๐ญ๐ฌ ๐จ๐Ÿ ๐ซ๐ž๐ ๐ฎ๐ฅ๐š๐ซ ๐Ÿ๐ฎ๐ซ๐ง๐š๐œ๐ž ๐ฆ๐š๐ข๐ง๐ญ๐ž๐ง๐š๐ง๐œ๐ž ๐ข๐ง๐œ๐ฅ๐ฎ๐๐ž:
โœ… Helping improve system efficiency
โœ… Identifying potential issues early
โœ… Supporting reliable performance
โœ… Helping extend the life of your HVAC equipment

๐ƒ๐จ๐งโ€™๐ญ ๐ฐ๐š๐ข๐ญ ๐ฎ๐ง๐ญ๐ข๐ฅ ๐ญ๐ก๐ž ๐Ÿ๐ข๐ซ๐ฌ๐ญ ๐œ๐จ๐ฅ๐ ๐ง๐ข๐ ๐ก๐ญ ๐ญ๐จ ๐Ÿ๐ข๐ง๐ ๐จ๐ฎ๐ญ ๐ฒ๐จ๐ฎ๐ซ ๐Ÿ๐ฎ๐ซ๐ง๐š๐œ๐ž ๐ง๐ž๐ž๐๐ฌ ๐š๐ญ๐ญ๐ž๐ง๐ญ๐ข๐จ๐ง. ๐’๐œ๐ก๐ž๐๐ฎ๐ฅ๐ž ๐ฒ๐จ๐ฎ๐ซ ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐ฆ๐š๐ข๐ง๐ญ๐ž๐ง๐š๐ง๐œ๐ž ๐ญ๐จ๐๐š๐ฒ!
๐Ÿ“ž Call 217.429.1105
๐ŸŒ https://designairhvac.com/

๐ƒ๐จ๐งโ€™๐ญ ๐’๐ž๐ญ๐ญ๐ฅ๐ž ๐Ÿ๐จ๐ซ ๐‹๐ž๐ฌ๐ฌ ๐“๐ก๐š๐ง ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐‚๐จ๐ฆ๐Ÿ๐จ๐ซ๐ญWhen the temperatures drop, you need a heating system you can count on. Thatโ€™s...
09/23/2026

๐ƒ๐จ๐งโ€™๐ญ ๐’๐ž๐ญ๐ญ๐ฅ๐ž ๐Ÿ๐จ๐ซ ๐‹๐ž๐ฌ๐ฌ ๐“๐ก๐š๐ง ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐‚๐จ๐ฆ๐Ÿ๐จ๐ซ๐ญ

When the temperatures drop, you need a heating system you can count on. Thatโ€™s why ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  proudly offers trusted ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ designed to deliver comfort, efficiency, and dependable performance for your home.

As a ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐…๐š๐œ๐ญ๐จ๐ซ๐ฒ ๐€๐ฎ๐ญ๐ก๐จ๐ซ๐ข๐ณ๐ž๐ ๐ƒ๐ž๐š๐ฅ๐ž๐ซ, Design-Air has the training and expertise to help you find the right heating system for your needsโ€”from installation and replacement to repairs and maintenance.

๐–๐ข๐ญ๐ก ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐ž๐ช๐ฎ๐ข๐ฉ๐ฆ๐ž๐ง๐ญ, ๐ก๐จ๐ฆ๐ž๐จ๐ฐ๐ง๐ž๐ซ๐ฌ ๐œ๐š๐ง ๐ž๐ง๐ฃ๐จ๐ฒ:
โœ… Advanced technology for improved efficiency
โœ… Reliable warmth during the coldest days
โœ… Quality systems backed by industry-leading innovation
โœ… Professional installation and service from trained experts

Whether your furnace needs a tune-up, repair, or itโ€™s time for an upgrade, the team at ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  is here to keep your home comfortable all season long.

๐Ÿ“ž ๐’๐œ๐ก๐ž๐๐ฎ๐ฅ๐ž ๐ฒ๐จ๐ฎ๐ซ ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐ฌ๐ž๐ซ๐ฏ๐ข๐œ๐ž ๐ญ๐จ๐๐š๐ฒ ๐š๐ง๐ ๐ž๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž ๐ญ๐ก๐ž ๐๐ข๐Ÿ๐Ÿ๐ž๐ซ๐ž๐ง๐œ๐ž ๐จ๐Ÿ ๐‚๐š๐ซ๐ซ๐ข๐ž๐ซ ๐œ๐จ๐ฆ๐Ÿ๐จ๐ซ๐ญ!
๐ŸŒ https://designairhvac.com/

Your outdoor HVAC equipment plays an important role in your homeโ€™s comfortโ€”and a little fall preparation can go a long w...
09/21/2026

Your outdoor HVAC equipment plays an important role in your homeโ€™s comfortโ€”and a little fall preparation can go a long way!

๐๐ž๐Ÿ๐จ๐ซ๐ž ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐ฌ๐ž๐š๐ฌ๐จ๐ง ๐›๐ž๐ ๐ข๐ง๐ฌ:
๐Ÿ Clear leaves, grass clippings, and debris away from your outdoor unit
๐Ÿ Keep the area around your equipment open for proper airflow
๐Ÿ Check that nothing has damaged your system during the summer months
๐Ÿ Trim back plants or shrubs that may block airflow

While your outdoor unit may not run the same way during heating season, keeping it clean and accessible helps protect your HVAC investment.

๐…๐จ๐ซ ๐ฉ๐ซ๐จ๐Ÿ๐ž๐ฌ๐ฌ๐ข๐จ๐ง๐š๐ฅ ๐Ÿ๐ฎ๐ซ๐ง๐š๐œ๐ž ๐ฌ๐ž๐ซ๐ฏ๐ข๐œ๐ž ๐š๐ง๐ ๐ฌ๐ž๐š๐ฌ๐จ๐ง๐š๐ฅ ๐ฆ๐š๐ข๐ง๐ญ๐ž๐ง๐š๐ง๐œ๐ž, ๐ญ๐ซ๐ฎ๐ฌ๐ญ ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐ .

๐Ÿ“ž Call 217.429.1105
๐ŸŒ https://designairhvac.com/

When your furnace isnโ€™t working properly, you need dependable service from experienced HVAC professionals.The team at ๐ƒ๐ž...
09/18/2026

When your furnace isnโ€™t working properly, you need dependable service from experienced HVAC professionals.

The team at ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐  can diagnose and repair furnace issues to help restore comfort to your home.

๐‚๐จ๐ฆ๐ฆ๐จ๐ง ๐ฌ๐ข๐ ๐ง๐ฌ ๐ฒ๐จ๐ฎ๐ซ ๐Ÿ๐ฎ๐ซ๐ง๐š๐œ๐ž ๐ฆ๐š๐ฒ ๐ง๐ž๐ž๐ ๐ซ๐ž๐ฉ๐š๐ข๐ซ ๐ข๐ง๐œ๐ฅ๐ฎ๐๐ž:
โš ๏ธ Strange noises during operation
โš ๏ธ Uneven heating throughout your home
โš ๏ธ Frequent cycling on and off
โš ๏ธ Weak airflow from vents
โš ๏ธ Rising heating costs

Addressing problems early can help prevent larger issues and keep your system running efficiently.

๐๐ž๐ž๐ ๐Ÿ๐ฎ๐ซ๐ง๐š๐œ๐ž ๐ซ๐ž๐ฉ๐š๐ข๐ซ? ๐“๐ซ๐ฎ๐ฌ๐ญ ๐ญ๐ก๐ž ๐ž๐ฑ๐ฉ๐ž๐ซ๐ญ๐ฌ ๐š๐ญ ๐ƒ๐ž๐ฌ๐ข๐ ๐ง-๐€๐ข๐ซ ๐‡๐ž๐š๐ญ๐ข๐ง๐  & ๐€๐ข๐ซ ๐‚๐จ๐ง๐๐ข๐ญ๐ข๐จ๐ง๐ข๐ง๐ .

๐Ÿ“ž Call 217.429.1105
๐ŸŒ https://designairhvac.com/

Address

Decatur, IL
62521

Opening Hours

Monday 7:30am - 4pm
Tuesday 7:30am - 4pm
Wednesday 7:30am - 4pm
Thursday 7:30am - 4pm
Friday 7:30am - 4pm

Telephone

+12174750419

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