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Let your mind be at ease with a natural gas or propane standby generator. In the event of a power loss, these generators can power whatever load you would like. Our expert project managers will work with you to custom build a solution that will work for you and your family.

Depending on the application that fits your home we have multiple options. Starting from full transfer, partial transfer, and plug in transfer we can educate you on the best solution for your home. We can meet all budgets to make sure the next storm or electrical outage does not leave you without the systems you and your home need.

Home Generator Installation and Service

We work with many different generator brands, including Generac, Honeywell, Kohler, Cummins, Briggs & Stratton, Champion and more. We are proud to service, maintain and install any home power system in the market. Please feel free to contact us with any questions in regards to a specific manufacturer or model.

T-Mark Plumbing, Heating, Cooling & Electric: Pioneering in Generator Services

Based in the heart of Buffalo, NY, T-Mark Plumbing, Heating, Cooling & Electric is a one-stop solution for all your generator needs. We provide our customers with a wide range of services starting from generator installation, servicing, repair and more. Recognized and trusted by thousands of people around Buffalo, we ensure your home stays powered up at all times with expert home standby generator installation and services.

Uninterrupted Power Supply with Standby Generators

Standby generators play a crucial role in maintaining the comfort of your house even during weather challenges or power shortages. We offer home standby generator installation to ensure an uninterrupted power supply whenever the regular power grinds to a halt. Our high-tech generators are capable of detecting a power outage and start supplying power within a few seconds. You won’t even have to take the trouble of starting it manually.

Home Generator Installation in Buffalo & WNY

T-Mark Plumbing, Heating, Cooling & Electric have certified installation experts that specialize in home generator installation. Our professionals not only install the generator but also guide you through the entire process, making sure that you understand the operation well. We also inspect your home and electricity needs to recommend the generator type and capacity that would best suit you.

Our relationship with our customers doesn’t end with the installation of the generator. We are committed to helping you maintain the longevity of your generator with our expert home generator services and generator repair. Our services are fast, efficient and designed to keep your generator in optimum condition. We also provide regular maintenance checks to avoid any sudden inconveniences in the future.

Whole House Generator Installation

At T-Mark Plumbing, Heating, Cooling & Electric, we also specialize in whole house generator installation. Our team possesses the required skills and training necessary to install various generator brands and sizes. Whether you have a small home or a large property, we ensure that the installation is done seamlessly and efficiently. After all, your comfort is our ultimate goal.

With over two decades of experience and recognition as an official partner of the Buffalo Bills, T-Mark Plumbing, Heating, Cooling & Electric is the name you can trust in Buffalo, NY, for skilled generator services. Our track record is clear – we’re committed to serving our local community with the utmost professionalism, ensuring all homes stay powered, especially during critical times.

Pledge of Top-notch Generator Service

We pride ourselves on offering extraordinary generator service. Whether it’s routine maintenance or emergency repairs, our highly skilled team is ready to assist. Our expertise, dedication, and superior customer service make us a standalone choice for all generator-related requirements. We assure you that at T-Mark Plumbing, Heating, Cooling & Electric, you will receive quality service that is second to none. Try us today and experience professional and reliable generator solutions that suit your needs and set your mind at ease.

Home Generator Service, Whole House Generator Installation, Standby Generators, Home Generator Installation & Generator Repair Buffalo, NY, Tonawanda, NY, Kenmore, NY, Hamburg, NY, Cheektowaga, NY & Orchard Park, NY

Home Generator Service in Buffalo, NY | Generator Repair Tonawanda, NY | Whole House Generator Installation Kenmore, NY

Whole House Generator InstallationStandby GeneratorsGenerator RepairHome Generator InstallationHome Standby Generator Installation ∴ Ellicottville, NY ∴ Kenmore, NY ∴ Clarence, NY

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What our customer are saying...


Kevin and Bryan did an awesome job installing my air handler HVAC system and HWT. They were professional friendly and knowledgeable. Ian who sold me the system was friendly and knowledgeable and knew about all the rebates and incentives available saving me thousands. T-Mark of West Seneca hands down is the best for HVAC/Plumbing service. I highly recommend them.

Amy C

Mike Bluff did an amazing job. He was highly professional, very friendly and super knowledgeable. He took extra time to be sure everything was installed properly and explained everything in detail. Truly grateful!

John Chmarney

T-Mark did a excellent job replacing my water heater. Very professional all the way from the job quote through the timely, well done installation. GOOD JOB T-MARK.

Donald Wilburn

The TMark team has and continues to exceed all expectations! Ive recommended them to several family members whom feel the same way. Thank you for kindness and enjoy the upcoming holidays.

Patrick Ellis

The technician, Mike, that came to our house to fix our a/c on an extremely hot summer day, was very professional, friendly, and knowledgeable. He had my air conditioner up and running like new in a very fast time. Thank you. I recommend this company to anyone and will be using in the future. Thank you Mike and T-Mark!


Jon Stachura was totally professional, respectful and congenial. He was actually available two hours earlier than expected. He quickly diagnosed the leak problem and offered best and worst case solutions for repair. Jon was mindful of the customers property. While he was initially expected to arrive between 12 & 2, he actually completed the job by 12:15pm. The job was not simple. It involved Jon opening a wall and removing a 125 year old section of iron plumbing stack and replacing with pvc pipe. Very pleased with his work. Thank you Jon and TMark!!!

Michelle Wing

I have had a nightmare of a time with the plumbing in the house I moved into a year ago. T Mark sent Seth out quickly, he was fast, professional, explained everything in detail, and was very understanding when I was very stressed. It’s very easy and efficient to schedule, company is great with communication, it was refreshing to be treated respectfully, would absolutely recommend and will use in the future.

Dan Verdi

Derek and his team were prompt, professional, accommodating, friendly, efficient and tidy. I have had a few jobs done through T-Mark (Hot Water Tank installation, etc.) and I keep going back to them because they’re dependable for all the reasons I listed above. Today, my new A/C and furnace installation was flawless. They’re my first and only call because they’ve earned my business, over and over.

Thomas Higgins

Seth was courteous, professional and very knowledgeable when it came to my plumbing issues. He took care of the problem and I haven’t had any issues with plumbing since. I have used T-Mark several other times and all the staff does outstanding work. Thanks

Don Pavia

Excellent customer service and professional technician was able to diagnose the problem and spend additional time to resolve my issue. I always use T Mark For anything related to my furnace or my plumbing and I’ve never been disappointed!

Charles Dean

Brian Borkowski did a great job snaking the drain pipe to the bubler. He did a fine job explaining what he was doing and the condition of the drain system.
I’ve always been satisfied with T-Mark plumbing.

Rachael S

We had a great experience with Cody and Matt! They were very professional and knowledgeable. Our home was kept clean for the entire week they were there- and it was a messy job. Highly recommend!

Chris Tomasso

Quick service. Went above and beyond to fix my issue with the main sewer line.

Carol F

The technician, David, was very professional and courteous, explaining everything he was doing and answering questions in layman’s terms. We were very pleased with the service.

Bud Shalkowski

Gary and John were awesome. Helped fix a collapsed cast iron pipe situation to entire new pvc system in the basement and sump pump as well… they were unbelievably helpful and I am appreciative of everything they did.

Edward H

Had to have a sewer line and water service line replaced. The work was excellent, only took the two men 5 hrs and the price was very reasonable. Will definitely use this company again

Nicole Marie

Had an issue with toilet not flushing, so I called before business hours. T-Mark got back to be very quickly and had someone out less than 2 hours. The technician I had was Brian, and he was great. Let me watch the whole process of snaking the sewer line, and explained everything thoroughly. Very friendly, and overall I’m very happy it’s all fixed. Thank you!

Glen A

Excellent job! Easy to schedule, on time, professional, and fixed the problem.

Michele M

T-Mark installed my air conditioning unit 4 years ago. Very pleased with their work. I recently had them out to do a look and tune up on my unit. Everything from scheduling an appointment, to the actual service being performed was top notch. “Big Mike” came out for the service and he was absolutely wonderful. On time, very friendly. Took the time to answer all my questions. I hope nothing ever breaks and I need service, but if I do T-Mark will be my first call. Highly recommend!

Garrett Moffett

Had a leak in my water heater, I called many places and they were the first to come out. Fixed quickly and had no issues since.

Jeffrey Fegal

Had T-Mark install a heating and AC system. There was great communication through out the install . Every concern was addressed , every call was returned promptly . T-Mark was highly professional in all aspects of the install. I am very happy with there service.

Donald Bauman

Gary showed up early, which was a good thing. He was professional ,courteous & did a great job clearing our drains.I’ll be calling soon to take advantage of your a/c tune-up offer. Thank You!

Chelsea M

T-Mark was a 5 star experience from the very first phone call to the end of the project. Every person on the team met us with kindness, eagerness to help and professionalism.

Stacey Bubis

Ryan was professional yet down to earth and very informative and helpful.
We use TMark for all our plumbing and heating A +

Tanner R

T-Mark is WONDERFUL. I was able to get a next day appointment, and Brian came out to help. He was able to resolve the issue within an hour and also teach us why it happened, how to prevent this, and what to watch for moving forward. I would definitely recommend and use them again.

Tiffany Quiles

Called and got a response back right away and got an appointment scheduled. Logan was very professional and got my heat back up and working in no time! Great service thank you so much!

Jerome Recktenwalt

The best workers in the business !! Very knowledgeable, on time , friendly, listen to your concerns, and always upmost professional staff from the office to the supervisors and especially the installation team and service team !! I will you them again for all my future needs !!!

Charles C

I highly recommend T-Mark for all your furnace and central air conditioner tune-ups and repairs. The office staff is wonderful, their prices are reasonable and their technicians are very professional and knowledgeable.


Our A/C was 30 years old. T-Mark answered my call right away and came out the next day, replaced the Furnace and A/C. Crew was professional and seemed to know what they were doing. Seemed to get everything done without any hiccups or problems. Took time to go through everything with me. Very happy customer.

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