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Q: Can central air be added to an existing furnace?

• <div><p>If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace&rsquo;s blower to circulate the air.</p></div>

Q: How much do HVAC companies charge?

• <div><p>HVAC companies may charge an hourly rate or a flat fee. Hourly rates typically range from $100 to $250 per hour, with an average around $175. Some contractors charge a flat fee for specific services, such as an inspection, which can cost between $150 and $500. The total cost of an HVAC service is influenced by several factors, including: the urgency of the service (emergency repairs after hours or on holidays cost more), the time of year, the type, size, and brand of your HVAC system, the specific repair needed, and whether you have a service contract.</p></div>

Q: How many HVAC quotes should I get?

• <div><p>Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor&rsquo;s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren&rsquo;t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals. </p></div>

Q: Are ventless AC units good?

• <div><p>If you&rsquo;re looking for a portable, budget-friendly cooling solution that doesn&rsquo;t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you&rsquo;re renting an apartment or home and aren&rsquo;t allowed to make large, structural changes like installing comprehensive HVAC, or you&rsquo;re in a shared space and only need to cool your own room. </p></div>

Q: What AC tonnage do I need for my house?

• <div><p>The general rule of thumb for figuring out <a href="https://www.angi.com/articles/infographic-how-tonnage-affects-your-ac.htm">how much AC tonnage you need</a> in your home is that for every 500 to 600 square feet of space you need to cool, you&rsquo;ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. </p></div>

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Verified Reviews for Heating And Air Conditioning Service pros in Marissa, IL

*The Angi rating for Heating And Air Conditioning Service companies in Marissa, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Marissa, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on January 10, 2025

Find Heating and air conditioning pros in Marissa

Allstar Carpet & Upholstery Care

4.8(

)

Serving Marissa, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Excellent job thank you. Will use them again for certain."

Response time8 hrs

Response rate89%

Recommended by97%of homeowners

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Healthy Home Pest Control & Services

4.4(

385

)

Serving Marissa, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Healthy Home Pest Control & Services were fast, affordable, and professional. I would recommend using them for air duct cleaning services."

Response time8 hrs

Response rate94%

504 neighbors recently requested a quote

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The Furnace Guys Heating & Cooling

5.0(

)

Serving Marissa, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My furnace was not working & the repairman came out on a Sunday morning & made repairs to keep my home warm until he could get necessary parts on Monday."

Response time30 mins

Response rate100%

Recommended by83%of homeowners

Request Quote

Mr. Handyman Metro East

4.6(

196

)

Serving Marissa, IL and surrounding areas

Approved

In business since 2000

Warranties offered

Small jobs welcome

"Bob came out and provided an estimate which included options for completing the work. Once the work was scheduled he arrived on time and courteous, as usual. New security light of our choosing was installed in our backyard and a GFI outlet were installed in the garage in under an hour. We have used Mr. Handyman Metro East for several projects at our home and continue to use them because of their professionalism, value and customer focus."

Recommended by95%of homeowners

Serving Marissa, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"He came very quickly, did a great job. Very professional. Also he let me know I did not need my dryer vent---which I appreciated very much!"

Response time10 hrs

35 neighbors recently requested a quote

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Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

3.4(

353

)

Serving Marissa, IL and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"There wasn't a charge for the service because it was still under warranty."

127 neighbors recently requested a quote

Recommended by74%of homeowners

Serving Marissa, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc and his crew at VMK did and excellent job and I highly recommend there services ! Dave Caputo"

Response time5 hrs

Response rate86%

70 neighbors recently requested a quote

Serving Marissa, IL and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"There was a large hole in my roof and they repaired it. They did an excellent job and were very clean. I highly recommend them."

11 neighbors recently requested a quote

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J.W. Repair LLC

New to Angi

Serving Marissa, IL and surrounding areas

Approved

Hello, my name is James. I perform many handyman/repair services. I won’t charge near as much as large commercial businesses, and promise to be transparent and honest with my work. I’m positive if I can’t help you with your problem then I could point you in the right direction to help get your issue resolved asap quick as possible.

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CJ pro lawns

New to Angi

Serving Marissa, IL and surrounding areas

Approved

CJ Pro Lawns is your local expert for professional lawn care and pressure washing services. With a focus on reliability and meticulous attention to detail, we help homeowners keep their properties looking their absolute best year-round. From precision lawn maintenance to restoring your home’s surfaces with expert pressure washing, we pride ourselves on punctuality and high-quality results. Fully insured and dedicated to customer satisfaction, we treat every property as if it were our own.

Request Quote

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Showing 1-10 of 141

Heating and Air Conditioning questions, answered by experts

If your home has an existing forced-air heat system, you can add a central air conditioner to it. An HVAC technician can retrofit your forced-air heating system by installing an evaporator coil onto the furnace plenum, the box next to the furnace that draws in air. Once installed, the air conditioning coils use the furnace’s blower to circulate the air.

HVAC companies may charge an hourly rate or a flat fee. Hourly rates typically range from $100 to $250 per hour, with an average around $175. Some contractors charge a flat fee for specific services, such as an inspection, which can cost between $150 and $500. The total cost of an HVAC service is influenced by several factors, including: the urgency of the service (emergency repairs after hours or on holidays cost more), the time of year, the type, size, and brand of your HVAC system, the specific repair needed, and whether you have a service contract.

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

If you’re looking for a portable, budget-friendly cooling solution that doesn’t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you’re renting an apartment or home and aren’t allowed to make large, structural changes like installing comprehensive HVAC, or you’re in a shared space and only need to cool your own room.

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power.

The Marissa, IL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

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