Climate Diagnostics

59 Zittel St, Buffalo, NY

·24/7 Available

5.0(68 Google reviews)View on Google

Split SystemHeat PumpVRF/VRV SystemAHURTUBoiler

Request a Quote (716) 277-7638 Website

Commercial Capabilities

24/7 AvailabilityYes — always available

Quick Answers

How do I choose a reliable commercial HVAC contractor in Buffalo?

Climate Diagnostics is a Buffalo-based commercial HVAC company with a 5/5 Google rating across 68 reviews, serving office buildings, retail spaces, industrial facilities, and multifamily properties within a 25-mile radius. Facility managers should prioritize contractors who offer transparent pricing, documented service agreements, and 24/7 availability — all of which Climate Diagnostics provides.

How should a commercial HVAC system be maintained?

Climate Diagnostics offers preventive maintenance service agreements designed to keep commercial systems — including rooftop units, boilers, VRF/VRV systems, and air handling units — operating efficiently and reduce the risk of unplanned downtime. Regular scheduled maintenance under a service contract is the most effective way to extend equipment life and control operating costs in Buffalo's demanding climate.

Does Climate Diagnostics handle commercial HVAC replacement?

Climate Diagnostics handles commercial HVAC replacement across system types including split systems, heat pumps, VRF/VRV systems, rooftop units, boilers, and air handling units for buildings throughout the Buffalo, NY metro area. Every installation includes a one-year labor warranty alongside the applicable manufacturer's warranty, and the company guarantees to beat any competing quote.

About

Climate Diagnostics is a Buffalo, NY commercial and residential HVAC contractor serving office buildings, retail spaces, industrial and warehouse facilities, multifamily properties, mixed-use developments, and restaurants throughout Erie County and a 25-mile service radius. Founded by Brian Lorek, Climate Diagnostics brings 25-plus years of combined technical experience to HVAC design, installation, and service across Buffalo and surrounding communities including Amherst, Cheektowaga, Tonawanda, Lackawanna, and West Seneca. The company's commercial scope covers split systems, heat pumps, VRF/VRV systems, air handling units, rooftop units, and boiler systems — the core equipment types found in Buffalo's mixed commercial building stock. Every installation comes with a one-year labor warranty and the relevant manufacturer's warranty. Facility managers working with Climate Diagnostics receive upfront, itemized pricing and a price-beat guarantee, along with a commitment to transparency at every stage of the project. Reviewers consistently note Brian's responsiveness, clean workmanship, and willingness to resolve post-installation issues directly — including coordinating manufacturer warranty claims on defective parts. The company holds a 5/5 Google rating across 68 reviews. For ongoing asset protection, Climate Diagnostics offers preventive maintenance service agreements covering commercial HVAC equipment. The company also provides 24/7 availability, which is critical for property managers who need after-hours response to system failures in Buffalo's cold winters and humid summers. Duct modification and indoor air quality services round out the commercial offering.

Frequently Asked Questions

What types of commercial buildings does Climate Diagnostics service?

Climate Diagnostics services office buildings, retail spaces, industrial and warehouse facilities, multifamily properties, mixed-use properties, and restaurants and food service establishments. The company operates out of Buffalo, NY and covers a 25-mile service radius including communities throughout Erie County.

Does Climate Diagnostics offer service agreements for commercial HVAC equipment?

Climate Diagnostics offers preventive maintenance service agreements for commercial clients, which are designed to reduce unexpected breakdowns and extend equipment life. These contracts are available for the full range of systems the company services, including rooftop units, boilers, VRF/VRV systems, and air handling units.

Is Climate Diagnostics available for emergency commercial HVAC calls outside normal business hours?

Climate Diagnostics provides 24/7 availability, making it an option for property managers who need urgent HVAC response outside standard business hours. This is particularly relevant in Buffalo, where winter boiler or heat pump failures in commercial buildings require prompt attention to protect occupants and avoid property damage.

What warranty does Climate Diagnostics provide on commercial HVAC installations?

Every HVAC installation completed by Climate Diagnostics includes a one-year labor warranty in addition to the manufacturer's warranty on the installed equipment. Reviewers note that Brian has proactively worked with manufacturers to resolve equipment defects that arose after installation.

Does Climate Diagnostics service VRF/VRV systems in commercial buildings?

Climate Diagnostics lists VRF/VRV systems among the commercial HVAC equipment types it services, alongside split systems, heat pumps, air handling units, rooftop units, and boiler systems. VRF/VRV systems are increasingly common in Buffalo office buildings and mixed-use properties due to their zoning flexibility and energy efficiency.

Equipment & Systems

System Types Serviced

Split SystemHeat PumpVRF / VRV SystemAir Handling Unit (AHU)Rooftop Unit (RTU)Boiler

Building Types Served

Office Building

Retail / Shopping Center

Industrial / Warehouse

Multifamily (50+ units)

Mixed Use

Restaurant / Food Service

Operating Hours

Monday	12:00 AM – 12:00 AM
TuesdayToday	Closed
Wednesday	Closed
Thursday	Closed
Friday	Closed
Saturday	9:00 AM – 5:00 PM
Sunday	Closed

License & Insurance

Insurance VerifiedNot verified

Location

59 Zittel St, Buffalo, NY 14210, USA

Request a Quote

Avg. response in 4 hours

Commercial Capabilities

24/7 AvailabilityYes

Service AgreementsPreventive Maintenance

Is this your business?

Claim this listing to manage your profile, respond to reviews, and receive leads.

Claim This Listing

Google Reviews

View all

a year ago

I had two mini splits installed by Brian. He offered a reasonable quote & was very responsive. He puts customer satisfaction first & will make adjustments to ensure you are 100% satisfied with the end results. He also ensures he will be there in the event of future issues should they occur. He runs a reliable company that I would recommend.

— David Bozek (SideriticTitanx)

5 months ago

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 Clayback

2 months ago

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

Similar Contractors in NY

View all

Smart Air NYC

New York, NY

Smart Air NYC — Queens commercial HVAC contractor, 15 years experience, 5-star rated, 24/7 service across 25-mile NYC me...

JJB Mechanical, LLC

Rochester, NY

JJB Mechanical, LLC — Rochester, NY HVAC contractor. NATE-certified, 5-star rated (163 reviews), serving a 25-mile radiu...

Commercial HVAC in Buffalo, NY

Explore commercial HVAC contractors and services across Buffalo.

All Commercial HVAC Contractors in Buffalo, NY Commercial HVAC Repair in Buffalo Commercial HVAC Service in Buffalo Commercial HVAC Installation in Buffalo Commercial HVAC Maintenance in Buffalo Emergency HVAC Service in Buffalo VRF/VRV Systems in Buffalo Rooftop Unit (RTU) Service in Buffalo Boiler Service in Buffalo