Air Conditioning
Air Conditioning Repairs & Installations
B&B Mechanical Services in New Hampshire and Massachusetts makes sure your home or business HVAC system works exactly when you need it to. As a family-owned and operated residential AC contractor with 30 years of experience, we understand the critical role a reliable air conditioning system plays in keeping your space comfortable. Learn more about how our emergency repairs, routine maintenance, or expert installations can help you today!
Leading East Coast Residential AC Experts
Unlike heating, which is a more straightforward process, air conditioning is slightly more complicated; this is because the process of cooling air involves taking the heat away. There are a few different ways to do this, which is why there are so many different makes, models, and styles of air conditioners to choose from. It is most common for air conditioners to cool air through the process of a compression cycle, which transfers heat from inside the home or commercial space to outside of it.
But this is why you need B&B Mechanical Services — let us help you decide which new unit or repairs are needed, so you can feel confident in your cooling system.


Manage Your Home & Commercial Heating & Cooling With Us
Our air conditioner repair team specializes in keeping your New Hampshire or Massachusetts living or working space comfortable during even the hottest months! Understanding the unique demands of home or commercial AC systems, our experienced technicians are equipped to handle everything from routine maintenance to urgent repairs.
Let us help keep your units clean and in peak condition so you can delay new installations until it's absolutely necessary. Enjoy thorough air conditioning repair — including guaranteed same-day service for emergencies — with a commitment to transparent pricing. You can expect to receive detailed estimates without any hidden costs, along with factory-authorized brand-name equipment and parts.

Signs You Need AC Repairs & Maintenance
Recognizing when your air conditioning unit needs repairs or routine maintenance is key! Keep an eye out for:
- Inconsistent Cooling: If certain rooms are warmer than others, this may signal an airflow issue or a malfunctioning part in your system.
- Strange Noises: Unusual sounds such as grinding, squealing, or banging could indicate a mechanical problem that requires professional attention.
- Increased Energy Bills: A sudden spike in your energy bills may suggest that your AC unit is working harder than it should, often due to inefficiencies that need to be addressed.
- Frequent Cycling: If your AC unit turns on and off more frequently than normal, this could indicate a problem with the thermostat or other components.
- Unpleasant Odors: Foul smells coming from your unit may indicate mold, dust buildup, or electrical issues that should be inspected immediately.
- Water Leaks: Any pooling water around your unit or signs of condensation may signify a refrigerant leak or a blocked drain that needs immediate attention.
B&B Mechanical Services' air conditioner repair personnel recommend having your air conditioning unit looked at once a year, preferably in the spring before temperatures rise in the summer. During a maintenance check, our professionals will clean filters, check refrigerant levels, inspect electrical components, and ensure the system is operating how it's meant to.

Common Types of Air Conditioning Units
At B&B Mechanical Services, we offer many different types of residential air cooling systems to choose from, and can connect you with the right make and model to suit your particular needs and budget.

Central AC
The most common types of air conditioning unit that uses a compression cycle functionality are central air conditioners and heat pump units. These types of AC units are best for large spaces with many rooms that need to be cooled. These are designed to push the cold air through a ventilation system that includes ducts in the walls and floors. This type of A/C goes hand-in-hand with a furnace, which reverses the cycle during cooler months that demand the space to be heated rather than cooled.
These units tend to be more energy efficient and often come with energy-saving capabilities to minimize electricity costs. Another bonus is that they often last longer, and the system doubles as a heater during the colder months, so you won’t have to install so many different units.

Window AC
For customers who have smaller-scale needs, a single-room air conditioning unit is another option. These are typically found in apartment buildings, and are often attached to the room which is cooled via a window or slot that the unit fits directly into. A primary benefit of this style is that one individual unit is less expensive than installing a multi-room furnace system. However, it may not be the most efficient way to cool many rooms at once, since you will have to purchase and install multiple units.
Contact our team for help picking and installing a new air conditioning unit! We'll help you identify the right style for your warehouse, home, or business size.
Affiliated Brands

Ready to get started?
Don't let discomfort affect your home or business — contact B&B Mechanical Services today for a detailed estimate and experience the quality and value that our satisfied customers deserve. Let us keep you cool and comfortable all year round!