Get matched with top air conditioning pros in Diamondhead, MS

Q: How much does it cost to add AC to a 2,000-square-foot house?

• <div><p>Many factors affect how much adding air conditioning will cost you, from the size of your home to the size, type, brand, and installation specifics of the system itself. Chances are, a new central air conditioning system for a 2,000-square-foot house will cost somewhere between <b>$3,900 and $7,900</b> to install, with an average around <b>$6,000</b>. </p></div>

Q: Can you add central air to an older home?

• <div><p>It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from <b>$6,000 to $17,000</b> or more for the ductwork and AC unit. You&rsquo;ll also have to hack into the home&rsquo;s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.</p></div>

Q: Should my HVAC damper be open or closed?

• <div><p>Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent <a href="https://www.angi.com/articles/troubleshooting-common-air-conditioning-problems.htm">common AC problems</a>.</p></div>

Q: How can you tell if an AC vent is open or closed?

• <div><p>There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.</p></div>

Q: Should I choose a ductless mini-split or central AC?

• <div><p>Choosing between a ductless mini-split and central AC depends on your specific needs. Ductless mini-splits are ideal for targeted cooling, providing zoned comfort and energy efficiency. They are perfect for smaller spaces or homes lacking ductwork. In contrast, central AC offers consistent cooling throughout the entire house but requires ductwork and may be less energy-efficient for smaller spaces. </p><p>Consider factors like budget, home size, and cooling preferences to make the right choice. Combining both systems, with a ductless mini-split in specific areas, can also be a viable solution for tailored comfort and overall efficiency.</p></div>

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Verified Reviews for Air Conditioning pros in Diamondhead, MS

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

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

Last update on May 06, 2026

Reviewed in May 2026
I am getting a new inside and outside air conditioner unit for my home for a great price. Joe Chapman was professional, informative, and shot a video of his entire inspection. I would recommend Beacon heating and cooling as a great company.
Beacon Heating and Cooling
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Reviewed in August 2025
Had a leaking well tank replaced by another well company in June of this year. We were having issues with way too much air getting in the plumbing months after the tank replacement-we contacted the original well company three times to please adjust the air pressure of the tank without success....
Favre's Pump and Well Service
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Reviewed in January 2025
Blaize Heating & Air conditioning did a fantastic job servicing my AC unit. He changed my old coils AND left no mess. He explained everything, gave me an amazing price, and very polite.
Blaize Heating & Air Conditioning LLC
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Reviewed in January 2024
Really cared about getting my ac back up and running knowing I had kis at the house . Highly recommend him
Crosbys heating and air
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Reviewed in November 2023
They also fixed a fascia board for me and replaced lattice around my AC unit.
Bay Pressure Washing
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Reviewed in July 2023
my AC stopped blowing cold air; i highly recommend Bruceâ s AC; quick friendly service & reasonably priced!!
Bruce's A/C & Heating
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Reviewed in June 2023
Great company Chris is very informative and installed our new ac the next day at half the cost of everyone else we got quotes from.
ROK Roofing LLC
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Reviewed in May 2023
David responded promptly to my phone call. Came out and fixed my AC that was constantly freezing. Job well done!
Crosby's Heating & Air
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Reviewed in April 2022
Coast ac did an excellent job. Great service and great customer service. I will absolutely use this company again and recommend to my family and friends.
Coast AC & Heat
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Find Air conditioning pros in Diamondhead

Air Duct Cleaning Services

5.0(

)

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"AA Air Duct Cleaning and Installation did an excellent job. They cleaned the 12 units of our condominium in a professional manner. AJ and Aaron explained the procedure that would be used and worked in an efficient manner completing the work on time. Pictures and video were taken to show the results."

+13

9 neighbors recently requested a quote

Recommended by90%of homeowners

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Bruce's A/C & Heating

4.8(

107

)

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Bruce was extremely knowledgeable on hvac, punctual, friendly and cost effective. He was was able to diagnose and fix my problem with my mini split in short order. Would highly recommend his business for any future hvac work."

Response time2 hrs

Response rate87%

2 neighbors recently requested a quote

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Beacon Heating and Cooling

5.0(

)

Serving Diamondhead, MS and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"They did a fine job installing outside AC . Very professional. Kept me appraise of the process from start to finished. Will call on them for any future needs."

22 neighbors recently requested a quote

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Blaize Heating & Air Conditioning LLC

5.0(

)

Serving Diamondhead, MS and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Blaize Heating & Air conditioning did a fantastic job servicing my AC unit. He changed my old coils AND left no mess. He explained everything, gave me an amazing price, and very polite."

Response time6 hrs

Response rate100%

26 neighbors recently requested a quote

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Responded to my request and was here when he said. Was very straight forward about my air conditioner. Was prompt on the replacing my unit."

Response time4 hrs

Recommended by92%of homeowners

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Requested service and Clean air crew came out the next day to unclog my dryer vent and fix the problem of clothes taking 3 hours to dry."

Response time4 hrs

8 neighbors recently requested a quote

Recommended by90%of homeowners

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AA Air Duct Cleaning & Installation Services

4.7(

)

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"AA Air Duct Cleaning did a wonderful job. These guys were so nice and polite, very knowledgeable and explained everything, even showed us before and after pictures. They were prompt and their price was very reasonable. I'm so happy we hired them. I highly recommend them. 5+ stars across the board."

Response time10 hrs

Response rate94%

4 neighbors recently requested a quote

Serving Diamondhead, MS and surrounding areas

Approved

In business since 2023

Customers say: Quality work

Briny Bayou Services is a full stop shop for any project big or small. HVAC certified, wood working, plumbing, masonry, fencing, landscaping, drywall. We have lots of experience and ability, feel free to reach out to us for a quote.\n

Recommended by100%of homeowners

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Oh so clean

New to Angi

Serving Diamondhead, MS and surrounding areas

Approved

Hi I’m Jenn I have 10+ years cleaning experience. Let me do for your family what you are to busy for. No job is too big or too small. I have many 5 star reviews and references. Let OH SO CLEAN do what you don’t have time for. Locally owned and operated

Request Quote

Deswan Bailey

New to Angi

Serving Diamondhead, MS and surrounding areas

Approved

Writing\nI am reliable, hardworking, and detail-oriented. I take pride in leaving every home clean, organized, and spotless while providing dependable and professional service.

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Air Conditioning questions, answered by experts

Many factors affect how much adding air conditioning will cost you, from the size of your home to the size, type, brand, and installation specifics of the system itself. Chances are, a new central air conditioning system for a 2,000-square-foot house will cost somewhere between $3,900 and $7,900 to install, with an average around $6,000.

It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from $6,000 to $17,000 or more for the ductwork and AC unit. You’ll also have to hack into the home’s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

There are a few ways to determine if a vent is open or closed. You can inspect the vent and examine the position of the fins. If there are spaces between them, the vent is open. If the fins are flat and touching, the vent is closed. You can also stand under the vent when the system is running to see if you feel air flowing through it.

Choosing between a ductless mini-split and central AC depends on your specific needs. Ductless mini-splits are ideal for targeted cooling, providing zoned comfort and energy efficiency. They are perfect for smaller spaces or homes lacking ductwork. In contrast, central AC offers consistent cooling throughout the entire house but requires ductwork and may be less energy-efficient for smaller spaces.

Consider factors like budget, home size, and cooling preferences to make the right choice. Combining both systems, with a ductless mini-split in specific areas, can also be a viable solution for tailored comfort and overall efficiency.

The Diamondhead, MS homeowners’ guide to air conditioning services

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

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