Climate Diagnostics LLC
HVAC contractor in Buffalo, NY.
In Climate Diagnostics LLC's own words
Established in 2010, Climate Diagnostics is a trusted name in residential and commercial heating and cooling throughout Buffalo and Western New York. Specializing in comprehensive HVAC solutions, their experienced team offers expert installation, repair, and maintenance for homes and businesses. They work closely with clients to design and implement efficient heating and cooling systems tailored to specific needs. With a long-standing commitment to comfort and reliability, Climate Diagnostics ensures a perfect climate in any space.
- Trade
- HVAC contractor
- Business address
- 59 Zittel St, Buffalo, NY 14210
- Website
- climatediagnosticswny.com
- Hours
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- MondayOpen 24 Hours
- TuesdayOpen 24 Hours
- WednesdayOpen 24 Hours
- ThursdayOpen 24 Hours
- FridayOpen 24 Hours
- SaturdayOpen 24 Hours
- SundayOpen 24 Hours
From the business's Google listing, checked Oct 2026
- Register
- NY register
Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.
Google Reviews
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Brian is awesome! He is the definition of a small business owner who puts his clients first. I've had full HVAC and ductless mini split installed and they have been flawless. Great communication and always responsive.
Chau N.
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Brian treats his customers like family and that’s why I decided to work with him. Brian installed a new mini split system for me and in a world of HVAC companies that are trying to take advantage of you, Brian is not like that. He quoted me a few thousand dollars less than the next closest company for a very similar install and got it done for me the next week after initially contacting him. Brian handles all of the warranty and rebates as well, and also offers a one year warranty through his company for peace of mind. Thank you Brian!
Anthony M.
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We've used Bryan's services twice so far and in emergency situations where the heat went off during the cold period of the year, he was very responsive and helped us fix the problem the same day in both occasions. He is very knowledgable on all types of furnaces, explains what the diagnostic is and fixes it. His prices are also very reasonable and we've now made him our go to guy for all things HVAC and water boiler! We strongly recommend him.
H L.
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Fast, efficient, and fair! In a world where finding honest and fair work seems impossible, Brian shines! Not only is he fair on pricing (also a rarity in these times) but he was insanely fast as well as very clean. Most times contractors leave a huge mess behind but he was very mindful and respectful of my space to the point that I forgot he was ever even here. That alone is worth 5 stars!
Mike B.
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Thanks to Brian and his son, my air conditioner is now running great!! He explained what was wrong and got the fan motor that was needed. The cost was good and I will hire him again when needed. Thanks Brian
LouAnn L.
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Brian and his son are very professional and knowledgeable! They have a quick response time and explained everything as they went! Highly recommend them for all HVAC needs!
Melissa S.
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Great service. Super quick. Installed a brand new mini-split system at my house awesome job definitely call them for your next job!!!! 5 stars thank you! ⭐️⭐️⭐️⭐️⭐️
MR
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Great service. Professional and reliable
Hallow S.
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Brian is very knowledgeable with HVAC systemsand very fair with his pricing. Always answers my questions in a timely manner. It's a pleasure using his service.
michael P.
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Brian did a professional job in installing a new high efficiency furnace. Included adjusting vents for better airflow. Prompt installation and fair pricing. Would recommend and use again.
Don C.
About Climate Diagnostics LLC
Climate Diagnostics LLC says it has 25 years of experience with major HVAC brands. Its work includes heating and air-conditioning installation, repairs, maintenance contracts, indoor-air-quality work, heat pumps, and mini-split systems for residential and commercial customers.
Heating and cooling work from Climate Diagnostics LLC
The company describes systems ranging from forced-air furnaces with central air conditioning to heat-pump mini-splits. It also names HVAC repair and maintenance, along with indoor air quality, among its services.
Climate Diagnostics LLC says it works with RUUD and Mitsubishi equipment. For installations, the company states that a one-year labor warranty is included alongside the manufacturer’s warranty.
Buffalo availability and customer feedback
Climate Diagnostics LLC is open 24 hours a day, seven days a week, and the company advertises 24/7 service. The company says it serves Buffalo and Erie County, including Clarence, Amherst, Tonawanda, North Tonawanda, Cheektowaga, Kenmore, Lancaster, Lackawanna, West Seneca, and Niagara Falls.
Reviewers most often mention prompt replies, explanations of diagnosed problems, furnace and mini-split installations, clean work, and pricing they considered fair.
Equipment choices for Buffalo homes and businesses
The company says it designs heating and cooling systems around individual home and business needs. Its stated installation work includes air conditioning, heat pumps, and mini-splits, while its maintenance offerings include service contracts.
In Buffalo, utility gas heats 85.9% of housing units, per the American Community Survey 2024. NOAA normals for 1991-2020 put Buffalo’s mean temperature at 46.8°F, with an average high of 55.8°F and average low of 37.8°F.
Climate Diagnostics LLC is an authorized dealer of RUUD and Mitsubishi.
The company says it provides both installation and repair work alongside its maintenance contracts.
Services, brands and warranty details come from the company's own website. Ratings, hours and reviews come from Google. Town figures come from the US Census and NOAA.
More HVAC contractors in Buffalo
About Buffalo
| Population | 274,613 (2025) |
|---|---|
| County | Erie County |
| Average yearly snowfall | 124.1 inches |
| Heating degree days | 7,029 |
| Most common heating fuel | Utility gas |
Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.