How much does an AC tune-up cost in New Lenox, IL?

Best Heating & Cooling offers AC tune-ups for $89 (regularly $139) in New Lenox and throughout Will County. The tune-up includes a 21-point inspection: cleaning evaporator and condenser coils, checking refrigerant levels, inspecting electrical connections, testing capacitors and contactors, lubricating moving parts, and testing overall system performance. Call (815) 605-7365 to schedule your spring AC tune-up.

How do I know if my air conditioner needs to be repaired or replaced?

Signs your AC needs repair include: warm air blowing, weak airflow, strange noises, frequent cycling, or ice forming on the unit. If your AC is over 12–15 years old, requires refrigerant every season, or repair costs exceed half the price of a new unit, replacement is usually more cost-effective. Best Heating & Cooling offers free honest assessments — we'll tell you exactly what you need. Call (815) 605-7365.

How much does AC installation cost in Will County, Illinois?

A new central air conditioner installation in Will County, IL typically costs between $3,500 and $7,500 depending on the size of your home, the brand, and the efficiency rating (SEER). Best Heating & Cooling offers free estimates and financing options with approved credit. Call (815) 605-7365 for a no-pressure quote.

When should I schedule my AC tune-up in Illinois?

The best time to schedule your AC tune-up in Illinois is between March and June — before or during the summer heat. Getting your air conditioner serviced ensures it runs efficiently all summer, prevents breakdowns during heat waves, and qualifies you for seasonal specials. Best Heating & Cooling's AC tune-up is $89. It's not too late — call (815) 605-7365 to book your summer tune-up today.

How much does duct cleaning cost in Illinois?

Best Heating & Cooling offers professional whole-home duct cleaning for $595 (regularly $895) in New Lenox and Will County. This includes cleaning all supply and return ducts, removing dust, allergens, and debris, and improving system efficiency. Use code DUCT300 when you call (815) 605-7365.

Is Best Heating & Cooling licensed and insured in Illinois?

Yes. Best Heating & Cooling is fully licensed, bonded, and insured in Illinois. The company has served New Lenox and the Chicago southwest suburbs since 1987 and offers a 100% money-back satisfaction guarantee on all work.

What areas does Best Heating & Cooling serve?

Best Heating & Cooling serves New Lenox, Joliet, Mokena, Frankfort, Tinley Park, Orland Park, Homer Glen, Lockport, Crest Hill, Bolingbrook, Romeoville, Plainfield, Manhattan, Shorewood, and surrounding Will County communities in Illinois.

How do I prepare my air conditioner for summer in Illinois?

To prepare your AC for summer in Illinois: (1) Replace your air filter, (2) Clear debris from around the outdoor condenser unit, (3) Check that vents are open and unblocked, (4) Test your thermostat, and (5) Schedule a professional AC tune-up. Best Heating & Cooling's spring tune-up covers all of this for $89. Call (815) 605-7365.

How do I know if my furnace needs to be replaced or just repaired?

If your furnace is over 15 years old, requires frequent repairs, produces uneven heat, or has rising energy bills, replacement is often more cost-effective. Best Heating & Cooling offers free estimates and honest assessments — we'll tell you exactly what you need without pressure. Call (815) 605-7365.

Best Time to Buy a New AC in Illinois — And How to Get $500 Off

Q: Does Best Heating & Cooling offer 24/7 emergency AC repair?

Yes. Best Heating & Cooling provides 24/7 emergency AC repair 365 days a year throughout New Lenox, Joliet, Mokena, Frankfort, Tinley Park, Orland Park, Homer Glen, Lockport, Crest Hill, Bolingbrook, Romeoville, and Plainfield, IL. Call (815) 605-7365 any time — day or night.

The Honest Answer: Right Now Is Actually a Good Time

You'll read a lot of advice saying "buy in fall or spring for the best deals." That's partially true — but it misses an important reality for Illinois homeowners: if your AC is struggling or failing, waiting until fall means suffering through a hot summer and risking a complete breakdown during a heat wave. The cost of an emergency replacement (rushed timeline, no time to compare options) almost always exceeds any seasonal discount you'd get by waiting.

That said, here's the honest breakdown of when prices and availability are best in Illinois:

Best Times to Buy a New AC in Illinois

Late Spring (April–May) — Best Overall Timing

This is the sweet spot. HVAC companies are ramping up for summer but haven't hit peak demand yet. Installers have availability, equipment is in stock, and many companies (including Best Heating & Cooling) offer spring installation specials. You get your new AC installed before the heat hits, so you're not scrambling when it's 95°F outside. Right now — mid-May — is still within this window.

Fall (September–October) — Good for Planning Ahead

After the summer rush, HVAC companies often have more availability and may offer end-of-season discounts. However, equipment selection can be limited as distributors clear inventory, and you'll be installing a system you won't use until next spring. This works well if your current AC made it through the summer but you know it won't last another year.

Summer (June–August) — Avoid If Possible, But We're Here If You Need Us

Peak season means higher demand, tighter scheduling, and sometimes longer wait times for equipment. Prices are generally at their highest. That said, if your AC fails in July, you don't have the luxury of waiting. Best Heating & Cooling offers same-day and next-day installation during summer for homeowners in need — and our $500 off offer is available year-round.

What Does a New AC Cost in Illinois in 2026?

Prices vary based on home size, system type, and efficiency rating. Here's a realistic range for Will County homeowners in 2026:

Home Size	AC Size	Standard (14 SEER)	High Efficiency (18+ SEER)
Under 1,200 sq ft	1.5–2 ton	$3,200–$4,500	$4,800–$6,200
1,200–2,000 sq ft	2.5–3 ton	$3,800–$5,500	$5,500–$7,500
2,000–3,000 sq ft	3.5–4 ton	$4,500–$6,500	$6,500–$9,000
3,000+ sq ft	5 ton	$5,500–$8,000	$8,000–$12,000

Prices include equipment and installation. Actual cost depends on brand, existing ductwork condition, and any required electrical upgrades. Best Heating & Cooling provides free, no-pressure estimates.

Signs You Should Replace Rather Than Repair

Your AC is 12–15+ years old
Repair cost exceeds 50% of a new unit's price
You've had 2+ repairs in the last 2 years
Your system uses R-22 refrigerant (no longer manufactured)
Your energy bills have increased significantly without explanation
Your home has hot spots or uneven cooling despite repairs

How to Get $500 Off New AC Installation Right Now

Best Heating & Cooling is currently offering $500 off any new central air conditioner installation when you mention code COMBO500. This offer is available to homeowners throughout New Lenox, Joliet, Mokena, Frankfort, Tinley Park, Orland Park, Homer Glen, Lockport, and surrounding Will County communities.

Additionally, we offer financing with approved credit — so you can get a new, efficient AC installed now and spread the cost over time. Many homeowners find that the monthly energy savings from a high-efficiency unit nearly offset the monthly financing payment.

We also provide free, no-pressure estimates. We'll assess your home, recommend the right size and efficiency level, and give you a written quote with no obligation. Call us at (815) 605-7365 or book online.

What to Look for When Buying a New AC

When evaluating a new air conditioner, focus on these factors:

SEER2 rating: Higher is more efficient. Illinois minimum is 14 SEER2. We recommend 16–18 SEER2 for the best balance of cost and savings.
Proper sizing: An oversized AC short-cycles (turns on and off too frequently), wasting energy and wearing out faster. We perform a Manual J load calculation on every installation.
Brand reliability: We install Carrier, Lennox, Trane, and other top brands with proven track records and strong warranties.
Warranty: Look for at least 10 years on the compressor. Best Heating & Cooling registers all equipment warranties on your behalf.
Installation quality: Even the best AC performs poorly if installed incorrectly. Our technicians are NATE-certified and follow manufacturer specifications exactly.