Alliance Heating and Cooling

Alliance Heating and Cooling Serving Southern Maryland! Honesty and Integrity in service, providing a reliable resource for your HVAC needs. Licensed and Insured. HVAC #2319 ELEC #13762

Keep your home's air fresh and your HVAC system running smoothly with expert duct services from Alliance Heating and Coo...
06/09/2026

Keep your home's air fresh and your HVAC system running smoothly with expert duct services from Alliance Heating and Cooling Inc. Over time, your ducts can accumulate dust, debris, and allergens, which can compromise indoor air quality and drive up your energy bills. Our team provides thorough duct cleaning and complete duct installation to make sure your system operates at its best.

Our duct cleaning service eliminates harmful buildup inside your ductwork to maximize airflow, boost system performance, and help lower energy costs—so you can enjoy cleaner, healthier air at home.

Learn more: https://allianceheatcool.com/duct-cleaning/

Beat the heat with expert AC installation from Alliance Heating and Cooling Inc., your go-to HVAC specialists! Our techn...
06/02/2026

Beat the heat with expert AC installation from Alliance Heating and Cooling Inc., your go-to HVAC specialists! Our technicians handle both home and business air conditioning needs, installing top-quality systems from trusted names like Armstrong Air and Ducane for dependable, energy-saving comfort.

For those seeking adaptable options, we provide advanced ductless solutions, including LG multi-zone mini-splits that efficiently cool multiple rooms—perfect for tailored climate control and lower energy bills.

Reach out for a complimentary estimate! Learn more: https://allianceheatcool.com/ac-installation/

For over three decades, Alliance Heating and Cooling Inc. has been a reliable HVAC partner. Now, based in our modern, co...
05/26/2026

For over three decades, Alliance Heating and Cooling Inc. has been a reliable HVAC partner. Now, based in our modern, conveniently located facility, we can respond to your heating and cooling needs faster than ever.

Our team—bringing together more than 60 years of combined expertise—specializes in residential and commercial HVAC repairs, efficient system installations, and preventive maintenance packages that keep your equipment running smoothly year-round.

Learn more: https://allianceheatcool.com/about-us/

05/20/2026

UM, Southern Maryland, why haven’t you called us yet? We are available to fix your Air Conditioning Unit!

Keep your heating and cooling systems operating at peak performance with Alliance Heating and Cooling Inc., your local H...
05/19/2026

Keep your heating and cooling systems operating at peak performance with Alliance Heating and Cooling Inc., your local HVAC experts. Our comprehensive, biannual maintenance service includes a 20-point inspection every spring (April–June) and fall (October–December), helping you catch small issues before they become major problems, while also improving efficiency and extending equipment life.

As a certified, community-focused HVAC contractor, we’re passionate about providing honest, reliable service that puts your comfort first. Our preventative maintenance program is designed to save you money, prevent inconvenient breakdowns, and make sure your home or business stays comfortable no matter the season.

Learn more: https://allianceheatcool.com/hvac-preventative-maintenance/

Call today Southern Maryland! 301-843-6674
05/12/2026

Call today Southern Maryland!

301-843-6674

Searching for reliable commercial HVAC experts? Alliance Heating and Cooling Inc. is your go-to for light commercial HVA...
05/12/2026

Searching for reliable commercial HVAC experts? Alliance Heating and Cooling Inc. is your go-to for light commercial HVAC needs. While we don’t handle chillers, our team delivers prompt repairs, professional installations, and ongoing maintenance.

We’re dedicated to helping businesses stay comfortable, energy-efficient, and stress-free throughout every season. From AC and heating repairs to regular preventative maintenance, trust us for customized solutions that keep your business running at its best.

Learn more: https://allianceheatcool.com/commercial-hvac/

Beat the heat and stay comfortable year-round with professional AC installation services from Alliance Heating and Cooli...
05/05/2026

Beat the heat and stay comfortable year-round with professional AC installation services from Alliance Heating and Cooling Inc. As your local HVAC specialists, we deliver dependable, energy-efficient air conditioning solutions for residential and commercial properties.

Our certified technicians install and replace trusted brands like Armstrong Air and Ducane for traditional home AC systems, helping you enjoy reliable cooling and potentially lower energy costs. Interested in a more flexible option? We’re also experts in LG ductless mini-split installations—ideal for cooling multiple rooms or setting up custom comfort zones.

Schedule a free consultation! Learn more: https://allianceheatcool.com/ac-installation/

For over three decades, Alliance Heating and Cooling Inc. has been the preferred HVAC contractor for Mechanicsville, MD,...
04/28/2026

For over three decades, Alliance Heating and Cooling Inc. has been the preferred HVAC contractor for Mechanicsville, MD, and surrounding communities. We offer expert solutions for both residential and commercial properties, including repairs, installations, and comprehensive maintenance packages.

Our team makes sure your heating and cooling systems operate efficiently throughout the year, minimizing disruptions and maximizing comfort.

Learn more: https://allianceheatcool.com/

Address

28799 Three Notch Road
Mechanicsville, MD
20659

Opening Hours

Monday 7am - 3pm
Tuesday 7am - 3pm
Wednesday 7am - 3pm
Thursday 7am - 3pm
Friday 7am - 3pm

Telephone

+13018436674

Website

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