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Design-Air Heating & A/C, LLCHVAC contractor in Decatur, IL

Design-Air Heating & A/C, LLC is an HVAC contractor at 1201 N 19th St, Decatur, IL 62521, ranked #21 of 61 HVAC contractors in Decatur and rated 4.3 from 46 Google reviews. Open Monday to Friday.

Decatur, ILUpdated 0 paid placements in any rankingHow we rank

Call (217) 429-1105Website ↗

Key facts

Key facts about Design-Air Heating & A/C, LLC
Address1201 N 19th St, Decatur, IL 62521Get directions
Phone(217) 429-1105
Websitedesignairhvac.com
HoursMonday to Friday: 7 AM – 4 PM
Google rating4.3 from 46 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Decatur and 3 towns within 25 miles: Mount Zion, Clinton and Monticello.

Based in Decatur, ILView on map

Opening hours

Opening hours for Design-Air Heating & A/C, LLC
DayHours
Monday7 AM – 4 PM
Tuesday7 AM – 4 PM
Wednesday7 AM – 4 PM
Thursday7 AM – 4 PM
Friday7 AM – 4 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Design-Air Heating & A/C, LLC compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Design-Air Heating & A/C, LLC (this business)—564.3 (46)—NoNo
THCB Mechanical LLC#19565.0 (15)—YesYes19.6 mi
DBR HVAC Inc.#20565.0 (14)—YesYes19.6 mi
TRUE PRICE HVAC#22565.0 (13)—YesYes19.6 mi

See all 61 ranked HVAC contractors in Decatur

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.3from 46 Google reviews

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Questions about Design-Air Heating & A/C, LLC

How is Design-Air Heating & A/C, LLC ranked in Decatur?

Design-Air Heating & A/C, LLC is ranked #21 of 61 HVAC contractors in Decatur by CR Score, with 56 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Design-Air Heating & A/C, LLC’s hours?

Design-Air Heating & A/C, LLC is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 4 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Design-Air Heating & A/C, LLC serve?

Serves Decatur and 3 towns within 25 miles: Mount Zion, Clinton and Monticello. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Design-Air Heating & A/C, LLC?

Design-Air Heating & A/C, LLC has a rating of 4.3 from 46 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Design-Air Heating & A/C, LLC?

Call Design-Air Heating & A/C, LLC on (217) 429-1105. The business is at 1201 N 19th St, Decatur, IL 62521. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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