Boston, MA HVAC Services

If your Boston home has a furnace with ductwork, central air conditioning is the straightforward choice. An outdoor unit connects to your existing air handler, pushing cooled air through the same ducts your heating system uses.

Most AC failures happen on the hottest days when systems run hardest. Regular service prevents the majority of breakdowns, and when something does go wrong, our technicians pinpoint the issue and fix it right.

• AC Repair: Warm air blowing, ice on the coils, strange noises, system cycling on and off. We troubleshoot the actual cause and make repairs that last.
• AC Maintenance: Spring tune-ups catch small problems before summer heat arrives. We clean components, verify refrigerant levels, test electrical connections, and clear drain lines.
• AC Installation: Proper sizing matters. An oversized unit cycles too frequently; undersized equipment runs constantly. We match the system to your Boston home’s square footage, insulation, and layout.
• AC Replacement: When repair costs approach replacement value, or your system hits 15+ years, upgrading makes sense. New units run quieter, cool more evenly, and cut energy bills.

Available in gas, oil, and electric models, furnaces provide reliable and efficient warmth all winter long. They’re common in ranch homes, newer construction, and Massachusetts homes that have been updated with central air. Furnaces quickly heat homes and maintain consistent comfort even when temperatures drop into the single digits.

GEM’s team of licensed professionals provides complete furnace services to keep your system running safely, efficiently, and reliably all season. Whether you’re upgrading to a new model, fixing a sudden issue, or staying ahead with preventive maintenance, we’ve got every aspect of furnace care covered.

• Furnace Installation: We’ll help you select the ideal furnace for your home based on its size, layout, and comfort needs. Our installation process ensures your new system is properly sized, expertly installed, and ready to deliver dependable heat from the start.
• Furnace Replacement: If your furnace is aging or struggling to keep up, it may be time for an upgrade. GEM replaces outdated units with high-efficiency models designed to improve comfort, reduce energy costs, and provide lasting reliability.
• Furnace Repair: When your furnace stops working or isn’t heating evenly, our technicians respond quickly to restore warmth and safety. We diagnose the issue accurately and make thorough, lasting repairs to get your system back in shape fast.
• Furnace Maintenance: Prevent breakdowns and extend your furnace’s lifespan with regular maintenance from GEM. Our detailed tune-ups include cleaning, inspections, and performance checks to ensure maximum efficiency and consistent comfort all winter long.

Ductless mini-splits are ideal for homes without existing ductwork, additions, converted attics, and finished basements. They provide targeted heating and cooling without tearing into walls, ceilings, or floors.

These systems are quiet, energy-efficient, and give you the freedom to customize temperatures room by room. GEM’s experts install and service ductless mini-split systems for Boston homeowners looking for flexible, efficient comfort all year long.

• Ductless Installation: Our technicians design and install ductless systems tailored to your home’s unique layout and comfort needs. We ensure each unit operates quietly, efficiently, and blends seamlessly into your space for reliable year-round climate control.
• Ductless Replacement: When your current system struggles to maintain comfort or efficiency, GEM can upgrade you to a new high-performance model. We handle the replacement process smoothly, minimizing downtime while improving energy savings and comfort.
• Ductless Repair: If your mini-split isn’t cooling, heating evenly, or responding properly, our team will diagnose the issue and fix it fast. We provide precise, lasting repairs that restore consistent performance and extend your system’s lifespan.
• Ductless Maintenance: Regular maintenance keeps your ductless system operating efficiently and quietly. GEM’s maintenance service includes cleaning filters, inspecting components, and checking refrigerant levels to ensure reliable comfort all year.

Instead of moving air through ducts, boilers heat water and circulate it through pipes to radiators or underfloor systems, providing steady, even warmth. This method of heating is quiet, efficient, and ideal for New England’s long, cold winters. GEM offers boiler services to keep Boston homes warm and comfortable throughout the heating season.

• Boiler Repair: If your boiler isn’t heating properly or is making unusual sounds, our technicians will find the problem and fix it right the first time. We focus on long-term reliability by addressing the true cause of the issue, not just the immediate symptoms.
• Boiler Maintenance: Regular service ensures your system stays efficient and safe year after year. Our experts clean, inspect, and fine-tune every key component to prevent breakdowns and keep your boiler performing at its best.
• Boiler Installation: We take care of every detail to make sure your new boiler fits your home’s needs perfectly. From proper sizing to expert setup, our installations deliver even heating, energy savings, and dependable comfort.
• Boiler Replacement: When your old boiler can’t keep up or costs too much to run, we’ll guide you through your best upgrade options. Our team helps you choose a high-efficiency model that improves performance, lowers bills, and provides lasting warmth.

Forced air systems are great at heating homes quickly, but they can sometimes leave behind drafts or uneven temperatures. Radiant heating systems eliminate cold spots by evenly delivering warmth through floors, walls, or ceilings. This approach is found in many older Massachusetts homes and increasingly popular in renovations and new construction.

Radiant heat provides even distribution, reduces allergens by eliminating blown air, and creates a cozy atmosphere throughout your home. GEM offers comprehensive radiant heating solutions for Boston homes to ensure long-lasting efficiency and comfort.

If your home is one of the many in the Boston area still running on oil, you’re not alone, but you may be paying more than you need to. Switching from oil to gas heating can lower operating expenses, eliminate the need for fuel deliveries, and reduce the maintenance headaches that come with oil-based systems.

Gas heating offers cleaner performance, higher efficiency, and more reliable comfort throughout the year. GEM makes the transition simple with expert oil-to-gas conversion services in Boston that handle every step, from system evaluation and installation to permitting and final safety checks.

With our team’s guidance, you can enjoy a smoother-running, cost-effective heating system that adds long-term value to your home.

Air purification systems, as the name suggests, purify your air when it passes through the HVAC system.

At GEM, we install air purifiers that work with your existing HVAC systems so you can enjoy cleaner, healthier air every time your system runs. We’ll help you choose the right system to meet your needs, whether you’re concerned about pet dander, allergens, odors, or anything else.

• Air Purifier Repair: If your air purifier isn’t performing as it should, GEM’s technicians can quickly diagnose and resolve the issue. We restore your system’s efficiency so it can effectively remove dust, allergens, and pollutants from your home’s air.
• Air Purifier Installation: Installing an air purifier is one of the easiest ways to improve your home’s indoor air quality. Our experts will help you choose the right system for your space and ensure it’s properly integrated with your HVAC system for clean, healthy air throughout your home.

Filtering contaminants and particles out of your home’s air supply can keep your loved ones healthier and cut down on dust and allergens that settle on furniture and floors. A quality air filtration system helps reduce respiratory irritation and creates a cleaner, more comfortable living environment.

GEM installs and services advanced air filtration solutions for Boston homeowners that work seamlessly with your HVAC system to improve indoor air quality and airflow throughout your home.

• Media Air Cleaner Installation: Media air cleaners capture dust, pollen, and other fine particles more effectively than standard filters. Our technicians install these high-efficiency systems to enhance air quality and reduce buildup in your HVAC equipment.
• UV Air Cleaner Installation: UV air cleaners use ultraviolet light to neutralize airborne pathogens like bacteria, viruses, and mold spores. Our technicians install these systems to enhance air quality and provide an additional layer of protection for your home.
• UV Air Cleaner Installation: Installing UV lights in your HVAC system helps maintain cleaner coils and ducts while improving overall air quality. Our experts ensure precise placement and setup so your system operates efficiently and your home stays fresh year-round.

Your thermostat is the point of communication between your home and the HVAC system. You use it to bump the temperature up or down a degree or two, and that small adjustment can make a big difference in your comfort and energy use.

Modern thermostats offer advanced features like programmable schedules, Wi-Fi control, and smart learning capabilities to help you save money while keeping your home perfectly comfortable. GEM installs and services a variety of thermostats for Boston homeowners, from basic digital models to fully integrated smart systems, ensuring accurate temperature control and seamless operation with your HVAC equipment.

• Thermostat Repair: If your thermostat isn’t responding, reading the wrong temperature, or failing to communicate with your HVAC system, GEM can help. Our technicians quickly identify the issue and restore proper control, ensuring your home stays comfortable and efficient.
• Thermostat Installation: Upgrading your thermostat can make a big difference in comfort and energy savings. We install both standard and smart thermostats, ensuring they’re calibrated correctly and fully integrated with your HVAC system for precise temperature control.
• Smart Home Services: Smart home technology makes it easy to manage your comfort from anywhere. GEM helps homeowners connect and configure smart thermostats, sensors, and HVAC controls to create a more convenient, energy-efficient home environment.

Air handlers play a vital role in your home’s comfort by circulating conditioned air throughout your HVAC system. They house important components like blowers, filters, and coils, all of which work together to deliver consistent airflow and temperature control.

When your air handler isn’t performing properly, you might notice uneven temperatures, weak airflow, or higher energy bills. GEM provides expert air handler services in Boston to keep your system running smoothly, efficiently, and reliably year-round.

• Air Handler Repair: If your air handler starts making strange noises, blowing weak air, or running inefficiently, our technicians can quickly diagnose and fix the issue. We repair all makes and models, ensuring every component, from the fan motor to the coil, is working correctly.
• Air Handler Installation: A properly installed air handler is key to maximizing your HVAC system’s efficiency and comfort. GEM’s team installs high-quality air handlers designed to match your home’s specific heating and cooling setup.