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Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Ali came over to our home when we called with a concern of the air flow in our central air conditioning system. He checked the return, the air flow, the temperature at all of the vents, and the entire system. It had more to do with the age of the system and gave us suggestions on how a different filter could increase the air flow. He did all of this and refused to take any money for his time. He is a true honest professional and someone that we would recommend to everyone."
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+1

3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Phase Duct Cleaning
All Phase Duct Cleaning
4.9(
78
)
Air Ducts & Vents - Clean

Serving Riverhead, NY and surrounding areas

Approved

In business since 1998

Free estimates

Small jobs welcome

"Beautiful professional job. Could not be more pleased with the work. Ducts and dryer vent were filthy and have been wonderfully cleaned. I wholeheartedly recommend this business and will use ongoing."
1 neighbors recently requested a quote
Recommended by90%of homeowners
Chortani Services HVAC
4.6(
193
)
Central A/C - Service or Repair

Serving Riverhead, NY and surrounding areas

Approved

In business since 1992

Offers commercial services

Customers say: Quick response

"I had a really positive experience with Chortani. I needed a central air conditioning system totally replaced and Mongi did a professional, clean, thorough installation. He came when he said he would come, and performed the job on time and in the given time frame. The one thing that I appreciated was his honesty and integrity in performing this replacement. I have to say, Chortani did a wonderful job and I am really pleased. I recommend Chortani 100%."
Response time4 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Riverhead, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I sent a message to the company in the late evening regarding my broken central AC and Jason was here Tuesday morning to look at it. He tried to repair it but was not able to due to the age of the unit and the damage. We needed a new unit and he was here to put it in first thing Wednesday morning. Took him two hours and our AC was working. He was nice and professional. We felt the price was reasonable. Would use him again and recommend his business."
4 Zone Navien Boiler
1st Floor AC System
Hi Efficient Heat and Hot Water
Snow melt sensor
Manifold

+14

Response time10 mins
Recommended by97%of homeowners
Avatar for JB Comfort Heat and Air Conditions
JB Comfort Heat and Air Conditions
4.6(
56
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Riverhead, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"The installation of a new split unit Air conditioner unit was done by Joe. He installed the unit, ran the electrical work to my panel, installed all the lines needed. Joe completed the project with the expertise needed and was sure to address all the indoor and outdoor cosmetic piping and ductwork with a great appearance to meet my expectations. Joe was on time, very attentive to all my questions, emails and text messages and the price was very reasonable. I highly recommend using Joe for your AC unit installation and I will be calling him again for any future projects that I may have! 😊"
Condenser cleaning
Condenser cleaning
Additional Photos
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+11

Response time9 hrs
7 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for DG HVAC & HOME SERVICES LLC
DG HVAC & HOME SERVICES LLC
3.7(
9
)
Central A/C - Service or RepairWindow A/C Unit - Service or RelocateAir Ducts & Vents - Clean+1 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Chris was great. He gave an estimated arrival time and kept me posted about when he would arrive. Once he arrived, he was very professional and respectful of my home; he didn't even mind my nosy cat. He gave me an assessment of possible repairs needed on my portable AC, gave me an estimate for possible costs and provided an invoice on the spot. He made the whole process very easy, and I appreciate the time he took to explain everything. I would definitely hire DG HVAC & Home Services again for my appliance repair."
Freon leak repair
Freon leak repair
Capacitor replacement
Capacitor replacement
17 neighbors recently requested a quote
Avatar for Prime Air Long Island, Inc.
Prime Air Long Island, Inc.
5.0(
6
)
Central A/C - Service or Repair

Serving Riverhead, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Two days ago my central air conditioner stopped working. But today I feel lucky that Mustafa the technician from Angies list PRIME AIR LONG ISLAND arrived to service it. Mustafa was very professional and easy to talk to, he made his work look easy and got my AC working in no time. And best of all was when he handed me the repair bill, it was much lower than I expected. Mustafa is my new go to technician for Heating, Cooling and Plumbing jobs!"
Condenser coil cleaning
Condenser cleaning
Condenser cleaning
Condenser cleaning
31 neighbors recently requested a quote
Avatar for Professor Pipes
Professor Pipes
5.0(
18
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Highly knowledgeable and extremely professional company with great customer service!! Mike was such a pleasure to work with His team of experts were always so helpful and skilled. Very, very easy to recommend this company to family and friends, as the entire two day project was a seamless and positive experience! It was a true pleasure in every aspect of this HVAC job Kudos to Mike and the Professor Pipes crew!"
Response time7 hrs
Response rate91%
3 neighbors recently requested a quote
Qualairty Systems LLC
5.0(
11
)
Air Ducts & Vents - Clean

Serving Riverhead, NY and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

2 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

The difference between a home surge protector and an HVAC surge protector is that an HVAC surge protector is designed to protect the components inside your HVAC unit while a home surge protector is installed near appliances and meant to protect your entire home. There are three tiers of whole-house surge protectors, and they are more expensive to install than HVAC surge protectors.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

Air conditioners and dehumidifiers are actually quite similar, though they perform different jobs. Dehumidifiers reduce moisture in the air, while air conditioners work to cool the home. A good central AC unit will naturally perform a certain level of dehumidification due to its design, but it will not be able to handle excessive levels of moisture.

Split systems are the most common type of HVAC system. Split systems have two main units: an indoor one and an outdoor one. These units work together to pull in air, heat or cool it, and distribute it throughout your home. Other popular types of HVAC systems include hybrid systems and packaged heating and air systems.

The Riverhead, NY homeowners’ guide to air conditioning services

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