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24/7 Heating & Cooling Company in Southern NH
Proudly serving Plaistow NH, Salem, Atkinson, Newton, Windham, Derry, Hampstead, Londonderry & neighboring towns with trusted heating and cooling services.
Years Experience
Completed Projects
Happy Clients
Experienced Technicians
A+ Rating!
Our A+ rating from the BBB reflects our commitment to quality and trust with our clients.
5 Star Ratings!
With over 735 reviews, we’re proud to be one of the top-rated HVAC services on Google.
People's Favorite!
We’re honored to be recognized as a local favorite by our Yelp community.
Home Advisor
We’re thankful to be recommended by home advisor with more than 70 5 star reviews
Mitsubishi Diamond Contractor
Unmatched expertise in the installation and maintenance.
Some Of Our Projects
While we generally stick to a 25-mile radius of our home base in Plaistow, NH, don’t let that stop you from reaching out – depending on your location, the job or our schedule, we’ll do our best to make it out!
Reviews from Customers
At Big Al’s Services, customer satisfaction is our top priority, and it shows in our 5-star reviews across the board. From expert installations to fast, reliable repairs, our clients trust us for our quality workmanship and exceptional service.
Our Services
Expert Cooling & Heating Installation, Maintenance & Repair
Cooling & Heating Installation
Expert installation of split AC and heating systems for optimal year-round comfort and energy efficiency.
Boiler and Oil Tank Removal
Safe and efficient removal of old boilers and oil tanks to make way for upgraded systems and prevent potential hazards.
Furnace Installation
Professional furnace installation to ensure your home stays warm and your energy bills stay low.
AC Mini Split Installation
Full-service central air installation and maintenance to to keep your system running efficiently.
Oil Tank Installation
Precise installation of oil tanks, ensuring safe, long-term performance and compliance with local regulations.
Routine Maintenance & Annual Cleaning
Comprehensive Heating & Cooling units maintenance and cleaning services to extend system life.
Boiler Installation
Installation of high-efficiency boilers for reliable, cost-effective home heating.
24/7 Emergency Service
Sometimes problems with your heating or cooling systems may arise out of nowhere and at the worst time, WE ARE READY 24/7!
5 Stars Across the Board
Certified & Insured Team of Professionals
24 Hour Emergency Service
(603)-453-0533
Our Commitment to Superior Heating and Cooling Service
At Big Al’s Services, we provide top-tier heating and cooling solutions, serving homes in Southern NH, and the surrounding areas. From boiler installation to 24/7 HVAC repair, we’ve got your comfort covered. Whether you need emergency furnace repair or are upgrading to a central air conditioning system, our certified technicians deliver fast, reliable, and affordable services.
- Salem NH
- Atkinson NH
- Plaistow NH
- Nashua NH
- Newton NH
- Windham NH
- Derry NH
- Hampstead NH
- Londonderry NH
- Methuen NH
Service Your Neighbors Swear By
1,200+ Homeowners in Your Area Trust Big Al. Book Your Service Today!
When it comes to getting the job done right, your neighbors know who to call. Big Al is known for dependable service, honest pricing, and exceptional results. See the difference for yourself—book your service today and get started hassle-free.
Our Commitment to Superior Service
At Big Al’s Services, we provide top-tier heating and cooling solutions, serving homes and businesses in Salem, NH, and the surrounding areas. From boiler installation to HVAC repair, we’ve got your comfort covered. Whether you need emergency furnace repair or are upgrading to a central air conditioning system, our certified technicians deliver fast, reliable, and affordable services.
- Salem NH
- Atkinson NH
- Plaistow NH
- Newton NH
- Windham NH
- Derry NH
- Hampstead NH
- Londonderry NH
Mitsubishi and Energy Kinetics Heating & Cooling: Expertly Installed
At Big Al’s Services, we are proud to be a preferred contractor for Energy Kinetics boilers, a top choice for homeowners seeking energy-efficient heating solutions. Energy Kinetics boilers are renowned for their ability to cut fuel costs by up to 40%, operate whisper-quiet, and provide virtually endless hot water. Made in the USA with a proven track record of reliability, these boilers are designed for easy servicing and long-term performance. As a trusted partner, we ensure expert installation and maintenance, helping you achieve maximum comfort and savings throughout the cold months.
As a Mitsubishi Diamond Dealer, Big Al’s Services provides unmatched expertise in the installation and maintenance of Mitsubishi Electric heating and cooling systems. This elite designation signifies that our team has met Mitsubishi’s highest standards for training, customer satisfaction, and technical skill. By choosing a Mitsubishi Diamond Contractor for your HVAC installation, you gain access to industry-leading products, extended warranties, and energy-efficient solutions, ensuring long-term comfort and reliability for your home. Trust Big Al’s to deliver superior results for your heating and cooling system needs.
