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Find Air conditioning pros in Riverhead

Avatar for Surefire Mechanical Corporation
Surefire Mechanical Corporation
4.5(
157
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Install or Replace+3 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Called on a Sunday evening and there was a serviceman at my door by 8 AM Monday morning. Mike, the serviceman, was extremely knowledgeable, professional and courteous. Will recommend this company to anyone I know who needs air conditioning or servicing. Thanks again for the speedy service and knowledgeable serviceman who repaired the air conditioner quickly!"
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 DG HVAC & HOME SERVICES LLC
DG HVAC & HOME SERVICES LLC
3.7(
9
)
Central A/C - Service or RepairWindow A/C Unit - Service or RelocateDuctless Mini-split A/C - Install or Replace+13 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
82 neighbors recently requested a quote
Allined Mechanical
4.8(
82
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Install or Replace+1 more

Serving Riverhead, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"I was looking to have central air installed and came across Allined Mechanical with very positive ratings. I gave Bill a call and found he was very knowledgeable. He spent plenty of time answering all my questions. In the end I was extremely satisfied with both the price and quality of workmanship."
3 ton system
Unfinished 1 ton
Unfinished
Unfinished
Response time6 hrs
11 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Prime Air Long Island, Inc.
Prime Air Long Island, Inc.
5.0(
6
)
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceCentral Humidifier - Repair or Service+1 more

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
32 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

"Mike provided top-notch service when repairing my furnace. His pricing was very fair, and he completed the job quickly without any issues. Mike's friendly demeanor and expertise have made him my go-to professional for any HVAC needs I may have in the future. I highly recommend Professor Pipes!"
Response time7 hrs
Response rate91%
4 neighbors recently requested a quote
Avatar for SAM MECHANICAL INC
SAM MECHANICAL INC
4.1(
142
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Riverhead, NY and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"My central A/C was not blowing cold air late last year.  So I waited this year to do the service that Angie offered for Spring tune up for $65.  Steve called me that he would like to come to my house a couple hours early because he was in the neighborhood.  So, he showed up and get to work immediately.  My initial thought that I have to replace the complete AC system, but Steve checked out the outside unit and he said the unit is in good condition.  Then he checked the circuit breaker and he told me that the circuit breaker was tripped so there no need to replace the system for now.  He also offered a couple estimates for future works if I needed to replace either the complete system or just the outside AC unit.  And he also explained the pros and cons of the costs of both.  I would definitely hire them again or any repairs in the future. 
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

6 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Long Island HVAC
Long Island HVAC
3.8(
6
)
Central Humidifier - Install or Replace

Serving Riverhead, NY and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quick response

"Ray was friendly and very professional and you can tell immediately that he was very customer oriented. As far as prices go, he was more than fair compared to the other bids. As a matter of fact I expanded the scope of his work to include a new water heater too. All the equipment supplied was 100% new, still in the factory cartons and the installation work was TOP QUALITY. Ray not only sold me the job but he did the installation too. He and partner Ken, and their assistant (3 man crew total) worked very professionally and effectively. Needless to say I HIGHLY RECOMMEND THEM."
 Fujitsu Ductless heat pump in a classroom
Service call for a system low on refrigerant
Solar powered attic exhaust fan
Recommended by66%of homeowners
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FAQs for air conditioning projects in Riverhead, NY

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

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.