Bobby's HVAC service van parked on street with autumn fallen leaf

Trusted Port Jefferson HVAC Experts Backed by 25+ Years of Family-Owned Excellence

Heating & Cooling Long Island Homes with Heart — Call Bobby O for Reliable, Local HVAC Service Today!

Our Services

When your HVAC system gives out, you need more than a quick repair - you need reliable service you can trust. At Bobby O’s HVAC Inc., we provide expert heating and cooling solutions across Suffolk and Nassau County, with honest pricing and a commitment to getting the job done right the first time.

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Air Conditioning

Experience the ultimate in comfort with our air conditioning services. Our team ensures efficient cooling solutions tailored to your needs, providing you with a refreshing escape from the heat.

Mitsubishi Electric heat pump mounted on red brick building exterior
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HVAC system and ductwork installed in wooden attic framing

Heating

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Our heating services keep your home warm and comfortable during cold months, offering efficient, reliable solutions tailored to your needs.

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Cold Climate Heat Pumps

Our cold climate heat pumps efficiently heat your home even in extreme cold, ensuring warmth and comfort regardless of the temperature.

Bosch industrial air conditioning unit with white and blue ventilation grid
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Hands replacing a dirty, dust-covered air filter in an HVAC system

Indoor Air Quality

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Improve your home's air quality with our solutions that reduce allergens and pollutants. Our filtration systems and purifiers ensure cleaner air for better health.

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Ductless

Our ductless systems offer flexible and efficient heating and cooling solutions, perfect for spaces where traditional ductwork is not feasible.

White Daikin air conditioning unit mounted on a neutral wall
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Rheem water heater and Amana furnace in a utility room

Water Heaters

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Our water heater services ensure you have a consistent supply of hot water, tailored to meet your household's needs efficiently and reliably.

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Bobby's HVAC service trucks parked in snowy winter landscape

About Bobby O's HVAC Inc.

Robert Olivieri (Bobby O) is a certified HVAC Contractor with over 25 years of experience handling both Commercial and Residential systems. Most people know it’s not easy to own a family business in Long Island. It takes passion, hard work, and quality service to thrive on your own in New York. Bobby O is no stranger to challenge. Raising a family while owning property and a business are milestones among his many achievements.

Licensed and Insured
Experienced and Background-checked
Passed Technical Training & Certifications
Cleanup after the Job is Done
All Service and Repairs Come with a Warranty
New system Install is a 2 year labor and parts warranty
24/7 Emergency Repair
No Diagnostic Fee with Repair for Service Contract Members
Maintenance Plan Available
Financing Available
Family Owned & Operated
Transparent Pricing
Free Estimates on Installations and Replacements
Free Second Opinion
We're There When You Need Us, On-Time
Same-Day Service For Platinum Service Contract Members
100% Satisfaction Guarantee
Energy Efficient & Energy Saving Solutions
BBB A+ Accreditation
Licensed and Insured
Experienced and Background-checked
Passed Technical Training & Certifications
Cleanup after the Job is Done
All Service and Repairs Come with a Warranty
New system Install is a 2 year labor and parts warranty
24/7 Emergency Repair
No Diagnostic Fee with Repair for Service Contract Members
Maintenance Plan Available
Financing Available
Family Owned & Operated
Transparent Pricing
Free Estimates on Installations and Replacements
Free Second Opinion
We're There When You Need Us, On-Time
Same-Day Service For Platinum Service Contract Members
100% Satisfaction Guarantee
Energy Efficient & Energy Saving Solutions
BBB A+ Accreditation
Licensed and Insured
Experienced and Background-checked
Passed Technical Training & Certifications
Cleanup after the Job is Done
All Service and Repairs Come with a Warranty
New system Install is a 2 year labor and parts warranty
24/7 Emergency Repair
No Diagnostic Fee with Repair for Service Contract Members
Maintenance Plan Available
Financing Available
Family Owned & Operated
Transparent Pricing
Free Estimates on Installations and Replacements
Free Second Opinion
We're There When You Need Us, On-Time
Same-Day Service For Platinum Service Contract Members
100% Satisfaction Guarantee
Energy Efficient & Energy Saving Solutions
BBB A+ Accreditation
Licensed and Insured
Experienced and Background-checked
Passed Technical Training & Certifications
Cleanup after the Job is Done
All Service and Repairs Come with a Warranty
New system Install is a 2 year labor and parts warranty
24/7 Emergency Repair
No Diagnostic Fee with Repair for Service Contract Members
Maintenance Plan Available
Financing Available
Family Owned & Operated
Transparent Pricing
Free Estimates on Installations and Replacements
Free Second Opinion
We're There When You Need Us, On-Time
Same-Day Service For Platinum Service Contract Members
100% Satisfaction Guarantee
Energy Efficient & Energy Saving Solutions
BBB A+ Accreditation
Licensed and Insured
Experienced and Background-checked
Passed Technical Training & Certifications
Cleanup after the Job is Done
All Service and Repairs Come with a Warranty
New system Install is a 2 year labor and parts warranty
24/7 Emergency Repair
No Diagnostic Fee with Repair for Service Contract Members
Maintenance Plan Available
Financing Available
Family Owned & Operated
Transparent Pricing
Free Estimates on Installations and Replacements
Free Second Opinion
We're There When You Need Us, On-Time
Same-Day Service For Platinum Service Contract Members
100% Satisfaction Guarantee
Energy Efficient & Energy Saving Solutions
BBB A+ Accreditation

Customer Testimonials

Hear directly from homeowners who trust Bobby O’s HVAC Inc. for fast response times, honest service, and lasting comfort.

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I got 3 estimates for the job but only Bobby O’s knew about rebates etc. the workmanship was outstanding and Armond really knows his stuff and is a true craftsman, something that is in short supply these days.

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Boatman M.
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Competitive pricing. Nice, easy, and clean installation. No problems for a long time. When there was a hiccup, the problem immediately. Highly recommend.

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Walter M.
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Our AC stopped working in the middle of the heat wave. Called the company and they were able to get a tech out the same day to get us up and running. Great service!!

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Kera L.
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Quality professional service in a timely manner. Highly experienced in the industry. Great troubleshooting skills

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Artzt J.
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I’ve had a service contract with Bobby O’s for about 6 years. They are always responsive, professional and thorough.

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Ronda B.
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Compressor stopped working as I am on a service plan response was same day
and all was made right

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Charlie S.
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My bedrooms had no AC!
They came and quickly evaluated the problem, replaced the bad part and I soon had complete cool AC everywhere.
Rate was very reasonable!

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Mamor D.
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This was a fabulous experience. Most people don't even return your call. Bobby returned call right away, and at my house the next day!!
Fixed the issue!!! And on top of it gave me a great price!!! I totally recommend him!!!

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Ronald M.
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Bobby is great! He was extremely helpful and accommodating to get my heat back running again at a reasonable price. Highly recommend

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Thomas M.
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I was referred to Bobby O's HVAC through a friend. They came the very next morning, assessed the problem. I chose to replace rather than repair. They were fair, efficient, neat, extremely professional and fast!

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CHRYS A.

Maintenance Plan

Stay ahead of breakdowns with a customized maintenance plan that keeps your system running efficiently—while saving you money on repairs, energy bills, and unexpected surprises.

Silver Membership
Basic seasonal maintenance to keep your HVAC system clean, efficient, and operating smoothly—ideal for homeowners who want reliable year-round performance.
$13.95+
/monthly
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Sign up for Silver Membership
  • check icon
    24-hour emergency heating service
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    24-hour appointment turn-around
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    Free precision tune-ups
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    15% discount on repairs
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    Free Diagnostic services
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    Additional $7 for each additional piece of equipment
Gold Membership
This plan includes everything in Silver—plus full coverage on repairs, zero exclusions, and no diagnostic fees for complete worry-free protection.
$23.95+
/monthly
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Sign up for Gold Membership
  • check icon
    24/7 emergency heating service
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    24-hour appointment scheduling
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    Complimentary precision tune-ups
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    Comprehensive repair coverage
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    Complimentary diagnostic services
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    No restrictions
Platinum Membership
Our top-tier plan features same-day appointments, free system rejuvenation, full repair coverage, no exclusions, and up to 50% of unused credit applied toward a new system.
$31.95+
/monthly
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Sign up for Platinum Membership
  • check icon
    Round-the-clock emergency heating service
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    Immediate Appointments
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    Free Service on System Rejuvenation
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    Complimentary repair services
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    Complimentary diagnostic evaluations
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    No limitations
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    50% of Unused Credit Balance may be applied to a new system
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Financing

With flexible financing options through Synchrony, we make it easier to upgrade your comfort system without putting stress on your budget—so you can pay over time, not all at once.

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Featured Manufacturer

Our featured manufacturer is renowned for its innovative approach and commitment to quality. With a focus on sustainable practices, they have set a benchmark in the industry, ensuring that every product meets the highest standards of excellence.

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rheem logo
goodman logo
daikin logo
friedrich logo
amana logo
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10%OFF
Repairs For First
Time Customers
10%OFF
Text Of The Promotion In Here
10%OFF
Repairs For Seniors
$100 OFF
REME Halo Purchase
with This Ad
$13.95/mo
Prime Membership
Up to $1K/Ton
Heat Pump Rebates