
Serving Niagara Falls, NY and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Technician arrived on time; he was courteous and professional."





+9


Serving Niagara Falls, NY and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Technician arrived on time; he was courteous and professional."





+9

Serving Niagara Falls, NY and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"The company was very professional and did a good job. They called me back to make sure I was happy with the job they did and I was completely satisfied. I would recommend them to anybody."

Serving Niagara Falls, 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 Niagara Falls, 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 Niagara Falls, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Quick, clean, and fair. Highly recommend!"





+115

Serving Niagara Falls, NY and surrounding areas
Approved (Corporate)
In business since 1985
Free estimates
Credit card accepted
You can always count on Frank's Mr. Plumber to get the job done right the first time.\n\nWe offer 24/7 service to our valued customers, including holidays and weekends, because we believe you deserve to live in comfort at all times. Please let us know how we can assist you with your plumbing needs.





+7
Serving Niagara Falls, NY and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of HVAC services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!
Serving Niagara Falls, NY and surrounding areas
Approved
We are a local small business that strives to put out quality work for a quality price. We work directly with our customers to make your dreams reality

Serving Niagara Falls, NY and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
At Bravestone Construction, we provide reliable, high-quality construction and maintenance services for both residential and commercial clients. Our team is built on integrity, skilled craftsmanship, and a commitment to getting every job done right.\n\nFrom home improvements to commercial projects, we focus on efficiency, clear communication, and lasting results—no matter the size of the job.\n\nConsistency in service. Confidence in every result.\n

Serving Niagara Falls, NY and surrounding areas
In business since 1968
Free estimates
Emergency services offered
"24 hour service with NO up charge. Requested a repair, no heat. Existing Lennox furnace was 30 years old. Our first contact with Technician Nick was an indication of the professionalism and expertise of the company. Nick showed up sharing with us, great coffee from Lewiston. He found the furnace blower seized up but also the beginning of two cracks in the heat exchanger (CO hazard). Nick showed me the cracks with a camera. The furnace break down occurred the day we were supposed to leave for vacation. Belknap accommodated us with same day service and replacement with a new furnace. Everything was explained. People were in and out all day. Scott measured. Chris issued a proposal. Dave and Corey installed. A new Ruud furnace replaced the Lennox. The installers replaced all the exhaust pipes including that for the HW heater, disassembled the unused wood burning furnace connections, did electronic hookups to the circuit breaker panel, installed a hard wire combination smoke /CO detector and a new digital thermostat. All old equipment was removed and the work area cleaned up. The new setup looks much better, smaller and shiny. All conscientious and thorough guys. We chose not to replace the air conditioner (suggested due to the old style metal drip basin) since it still works. This would have cost more than the furnace. We felt the furnace install price was very fair considering the amount of work completed and the heat emergency. Give this company a call when you need heat!"
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.

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