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Best heating and air conditioning pros near Riverhead, NY

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TRUSTED BY RIVERHEAD, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon134
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Riverhead - Updated Nov 2026

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Can't speak highly enough of Ali. Prompt, courteous, but most importantly able to get to the bottom of problem without ripping off the customer. AN HONEST MAN! After many years of searching, I've finally found an HVAC repair company that I can trust! Happy days are hear again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Chortani Services HVAC
4.6(
193
)
Central A/C - Service or RepairElectric Boiler or Radiator Heating System - RepairElectric Boiler or Radiator Heating System - Repair - For Business+3 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 1992

Offers commercial services

Customers say: Quick response

"Mr Chortani is a real professional. He is reliable, honest and knows what he is doing. I spent two days with him while he replaced my boiler. He thinks first then does what must be done without making any mistakes. He does not waste time or material. He did exactly what he told me he would do. All contractors should be like Mr Chortani. If you need "The Best" go with Chortani Services HVAC. Thank you Mr Chortani!"
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 Air Cleaner - Repair or ServiceElectric Furnace / Forced Air Heating System - Repair+14 more

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
Allined Mechanical
4.8(
83
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Repair+10 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Highly recommend Allined Mechanical! Billy and his team were able to come over and assess our existing central air system pretty much right away. He was super informative, not pushy (which I have dealt with in the past). Replaced our compressor and got our system up and running in no time. Great customer service, we will be using him for all of our hvac needs from now on!!"
3 ton system
Unfinished 1 ton
Unfinished
Unfinished
Response time6 hrs
12 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for JB Comfort Heat and Air Conditions
JB Comfort Heat and Air Conditions
4.6(
57
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Repair or Service+18 more

Serving Riverhead, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Joe was courteous and accurate during all steps of the process from estimating the project including the 2 lbs of additional coolant needed to raise pressure in my HVAC and all other work including fixing hard to reach attic ducts, achieving the estimated cost exactly. He was also a pleasure to speak with and I felt safety was done right at all steps for himself and myself the home owner."
Condenser cleaning
Condenser cleaning
Additional Photos
Additional Photos
Additional Photos

+11

Response time9 hrs
3 neighbors recently requested a quote
Recommended by72%of homeowners
Sir's Electrical Contracting Corporation
4.7(
157
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Riverhead, NY and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I used Sirs (owned by Anthony) to install the electrical connections for a new pool gas heater. He was prompt and courteous, called when he said he would, and also did the job when he said he would. He even advised me to NOT go with the option that would have made more money for him. I would gladly use him again in the future for any electrical needs that I have."
 Speedy Light Bulb Service!!!
Speedy Speedy Light Bulb Service!!! (631)495-1969
 Costom Lighting
 Hanging lighting
 Hanging lighting

+9

Response time7 hrs
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for DG HVAC & HOME SERVICES LLC
DG HVAC & HOME SERVICES LLC
3.7(
9
)
Heat Pump - Repair or ServiceDucts & Vents - Install or ReplaceGas Furnace / Forced Air Heating System - Repair+19 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
11 neighbors recently requested a quote
Avatar for Professor Pipes
Professor Pipes
5.0(
18
)
Central A/C - Service or RepairCentral A/C - InstallDuctless Mini-split A/C - Install or Replace+18 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We were fortunate enough that we had Mike, who assisted in completing the installation of an ACiQ HVAC system that had been attempted but failed by another business. He was able in getting this highly automated, fully computerized, next-generation modell ACiQ HVAC system up and running. Iâ d like to emphasize that multiple companies refused the installation claiming that this system was too complex and they have no experience. Mike took the time to look into it, understand it and make it work. Excellent job, I would highly recommend him."
Response time7 hrs
Response rate91%
1 neighbors recently requested a quote
CPT Electric
5.0(
62
)
Thermostat - Install or Replace

Serving Riverhead, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Customers say: Quality work

"This was a multi project visit: upgrading and running a stove line, upgrading my service to 200amp and replacing the outdoor sub panel for the pool filter. Cole was great! Responsive, visited and provided a detailed estimate of each job and showed up quickly to resolve. Would highly recommend"
Response time9 hrs
Response rate93%
Recommended by79%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

On average, replacing an AC compressor costs between $800 and $2,300, but it could cost as much as $2,800. There are a few factors that impact the price of a compressor replacement, including the type and size of the compressor, as well as the type of HVAC system and local labor rates.

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

High humidity is one of the most common reasons for air vents to sweat or produce condensation. When the cool, dry air from your HVAC unit meets warm and moist air in your home, it will cause condensation. Insulating your ductwork can help prevent this. If you live in a very humid region, a dehumidifier can also help.

If left untreated, a frozen AC unit can lead to costly damage, especially to the compressor and evaporator coils. When ice forms on the evaporator coils, they become brittle and more susceptible to breaking. Plus, a freeze makes your AC system much less efficient, which means it's wasting energy and costing you more in your monthly energy bills.

Evaporator coils in HVAC systems typically last around 10 to 15 years. However, their life span can be longer or shorter based on factors like the frequency of your HVAC system usage, whether regular maintenance is performed, and environmental conditions. Regular maintenance, such as HVAC system cleaning and coil inspection, can extend the durability and efficiency of your evaporator coil.

The Riverhead, NY 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.