
Serving Lockport, NY and surrounding areas
Approved
In business since 1974
Free estimates
Emergency services offered
"panel replacement/ service upgrade to code"





+2


Serving Lockport, NY and surrounding areas
Approved
In business since 1974
Free estimates
Emergency services offered
"panel replacement/ service upgrade to code"





+2

Serving Lockport, NY and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"The whole experience was great, from the girls in the office to the work being done in my home. The crew that came to my home were wonderful although I did try and stay out of their way I was nosey. They were very professional and did what they came to do and cleaned up after them selves it was like they weren't even there!! Now I had this insulation done in the summer but I am telling you I feel the difference already my home stays cooler in the beating sun which is great because I don't have a A/C. I can not waitt ill winter and not having to use my furnace like I did last year and with a large family like mine I need to save every penny I can. GREAT JOB PRIME TIME!!"





+9

Serving Lockport, NY and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"The technician, Andrew Prince, arrived on time, he was courteous and professional. The cleaning and maintenance of my oil furnace was thorough and performed in a timely manner. Will definitely hire again. Very happy with Andrew's service and knowledge."
Serving Lockport, NY and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
"They were a great group to work with, they installed a new furnace, added central air and installed a hot water tank in less than a day very professional did not leave a mess. I would highly recommend this contractor."

Serving Lockport, NY and surrounding areas
Approved (Corporate)
In business since 1992
Free estimates
Emergency services offered
"Went very well and I had a new furnace filter and asked if he would switch it for me which he did no job he said. Also they accepted the national fuel $50.00 rebate. So you just pay them fill out the form and get your $50. check in mail from national fuel. It was inexpensive and tmark still excepted their own coupon on top of the rebate. Want to call back for my central air unit in spring hopefully with a coupon."





+10

Serving Lockport, NY and surrounding areas
Approved
In business since 2025
Credit card accepted
Offers commercial services
Where comfort meets commitment! Were your home team for reliable, high-quality heating and cooling service you can count on all year long. From keeping your home warm through winter to cooling things off when the heat hits, our crew brings skill, speed, and passion to every job. We dont just fix systems, we deliver peace of mind, backed by a promise of quality, integrity, and true hometown care.





+26

Serving Lockport, NY and surrounding areas
Approved
In business since 1995
Emergency services offered
Small jobs welcome
"Cellino did an excellent job. After calling five plumbers to fix a shower head spewing hot water and none of them could come for 4-5 days. I got hold of Cellino who came in a few hours and corrected the problem. The tech was very knowledgeable and had the job done in no time. Excellent job and of course 5 stars. Had I waited I probably would have had a lot of damage to my bathroom."





+18

Serving Lockport, NY and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
Emerald Heating & Cooling was founded in 2000 by Marty and Carrie Sheehan, who combine their strengths to offer great HVAC service to the local area.\n\nThe business began after founder Marty Sheehan worked for an HVAC company and trained under a wise technician who told him “be like the duck on the water.” By this, he meant that ducks always appear graceful and in control above the water, while below the surface they are trying hard to stay afloat. It’s a metaphor for working hard while doing a beautiful job, hustling without mistakes, and doing great work without the fuss.\n\nMarty has taken this mindset and applied it to every aspect of our business, from the logo to the mission. This is how we approach every job we do.



Serving Lockport, NY and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
Thank you for considering hiring us for your project! At Frank N Frank Mechanical Contracting we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project.\n\nWe are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family!\n\nAs the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review.\n\nWe look forward to earning your business, so please ask us for references!

Serving Lockport, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Fast and great service and work"





+115
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.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.