John Lock Air Conditioning & Heating Service Inc.

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United States
Buffalo, NY
John Lock Air Conditioning & Heating Service Inc.

We are a third generation Heating & Air Conditioning company serving all of Western New York.

We specialize in the design, installation and service of heating, air conditioning and indoor air quality equipment for both residential and commercial applications. Our Management team offers over 60 years of industry experience and we are capable of handling all of your heating and cooling needs.
24/7 emergency service is available during the winter months. We service all makes of furnaces, boil

ers, air handlers and air conditioners. Our service department also offers maintenance services and annual preventative maintenance agreements.

12/29/2025

Become a Maintenance Club Member!

Enjoy priority service, exclusive savings, and year-round comfort with John Lock AC & Heating. 🏠

📞 Call 716-894-6400 to join today!

12/25/2025

🎄❄️ Merry Christmas and Happy Holidays from all of us at John Lock AC & Heating! Stay warm and enjoy the season.

12/22/2025

⏰ Time is running out to save on a new furnace!

National Fuel rebates for new gas furnaces end January 1, 2026. That means you only have until December 31, 2025 to save $400–$600 on a high-efficiency furnace installation.

How old is your furnace? Now’s the perfect time to upgrade while rebates still apply. Financing options are available!

✅ Furnace must be installed by 12/31/25 to qualify.
📞 Call John Lock AC & Heating today at 716-894-6400 to schedule your installation and lock in your savings.

12/21/2025

Winter is here, Buffalo! ❄️

John Lock AC & Heating is here to keep your home warm and comfortable all season long. From furnace installations to maintenance and repairs, our expert team has you covered.

📞 Call us today at 716-894-6400 to schedule your service.

12/17/2025

❄️ When your furnace fails, it can go from uncomfortable to urgent fast. From quick checks you can try yourself to safe ways to stay warm while waiting for help, we’ve put together practical tips every homeowner should know.

👉 Read the full blog: https://johnlockheating.com/what-to-do-if-your-furnace-fails-emergency-heating-tips/

12/10/2025

Now Hiring: Service Technician!
Join John Lock AC & Heating!

💵 $25–$40/hr (based on experience)
✅ Full-time, year-round
✅ Health insurance + retirement plan
✅ Vacation & holiday pay
✅ Company vehicle

Must have 5+ years HVAC experience + clean NYS driver’s license.
👉 Apply today: https://johnlockheating.com/careers/

12/03/2025

Cold weather is here, is your furnace ready? A professional tune-up from John Lock AC & Heating improves efficiency, prevents breakdowns, and keeps your family comfortable all season long.

📞 Schedule today: 716-894-6400

11/27/2025

This Thanksgiving, we’re grateful for our customers, our team, and the community we serve. Wishing you and your family a safe and happy holiday!

11/26/2025

We are hiring!! John Lock AC & Heating is looking for experienced service technicians to join our team immediately!

✅ 3–5 years experience required
✅ $25–$40/hr based on experience
✅ Vacation, vehicle, health insurance
✅ Guaranteed full-time – no layoff periods

We’re a third-generation, locally owned family business, and we’re looking for team members ready for a positive change.
Interested? Call or text Mike Lock directly at 716-570-2625. You’ll be glad you did!

11/25/2025

It’s chilly outside, but don’t worry! At John Lock AC & Heating, we’re here to keep you warm. Whether you need a replacement or maintenance, our team is always ready to ensure your comfort. Stay cozy! 🔥

Contact us today to schedule your appointment! 716.894.6400.

When HVAC is all you do, you do it right.

Address

3120 Genesee Street
Buffalo, NY
14225

Website

http://Johnlockheating.com/

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