Heating, Cooling & Ventilation Done Right
Mechanical HVAC is the foundation of what B&L Ductless was built on. As an authorized Mitsubishi Electric Diamond Contractor, we specialize in high-efficiency ductless mini-split systems that heat and cool homes without the need for traditional ductwork. But our mechanical capabilities extend well beyond ductless - we design, install, and maintain a full range of heating, cooling, and ventilation systems for residential and commercial properties.
Every mechanical installation we do is backed by our in-house electrical and plumbing teams, so the wiring, refrigerant lines, condensate drains, and gas connections are all handled by one coordinated crew. No subcontractors, no delays, no surprises.
Our Mechanical HVAC Services
Ductless Mini-Split Installation
Our flagship service. We design and install single-zone and multi-zone ductless systems from Mitsubishi Electric, Fujitsu, and other leading manufacturers. Each installation begins with a Manual J load calculation to properly size the system, followed by professional mounting, line set routing, electrical connections, and commissioning. We handle everything from the indoor head to the outdoor condenser.
Heat Pump Cleaning & Maintenance
Regular maintenance keeps your heat pump running at peak efficiency and extends its lifespan. Our cleaning service includes a deep clean of indoor evaporator coils, blower wheels, filters, and drain pans, along with outdoor condenser coil washing, refrigerant level checks, and electrical connection inspections. We recommend annual cleaning for optimal performance.
Central Air & Ducted Systems
For homes with existing ductwork, we install and replace central air conditioning systems, air handlers, and ducted heat pump systems. We perform duct leakage testing, seal and insulate duct runs, and ensure proper airflow distribution to every room in the house.
Ventilation & Indoor Air Quality
Proper ventilation is essential for healthy indoor air, especially in tightly sealed modern homes. We install energy recovery ventilators (ERVs), heat recovery ventilators (HRVs), bathroom exhaust fans, and range hood ducting. Our designs comply with ASHRAE 62.2 residential ventilation standards.
HVAC System Repair & Diagnostics
When your heating or cooling system fails, our technicians diagnose the problem fast using refrigerant gauges, multimeters, and thermal imaging. We repair compressor issues, fan motor failures, control board faults, refrigerant leaks, and thermostat malfunctions across all major brands and system types.
Whole-Home Ductless Conversions
Replace your oil furnace, baseboard electric, or aging forced-air system with an all-electric ductless heat pump setup. We design multi-zone systems that give you room-by-room temperature control, dramatically reduce energy costs, and qualify for substantial MassSave rebates and federal tax credits.
Authorized Mitsubishi Electric Diamond Contractor
B&L Ductless holds Mitsubishi Electric's highest dealer certification - the Diamond Contractor designation. This means our technicians receive factory training on the latest Mitsubishi systems, and our customers benefit from extended warranty coverage and priority access to rebate programs.
-
Factory-trained technicians with ongoing Mitsubishi Electric certification
-
Extended 12-year warranty on qualifying Mitsubishi installations
-
Hyper-Heating INVERTER (H2i) systems rated down to -13-F for Massachusetts winters
-
MassSave rebate coordination - we handle the paperwork for you
Maximize Your Savings with Rebates & Incentives
Massachusetts homeowners can take advantage of generous incentive programs when upgrading to energy-efficient heat pump systems. B&L Ductless helps you navigate every available rebate and tax credit to minimize your out-of-pocket costs.
-
MassSave Rebates - up to $10,000 back on qualifying whole-home heat pump conversions
-
Federal Tax Credits - 30% of installed cost (up to $2,000) under the Inflation Reduction Act
-
0% Interest Financing - available through MassSave's HEAT Loan program for qualifying upgrades
-
We handle the paperwork - our team submits all rebate applications on your behalf
Ready for Year-Round Comfort?
Whether you are installing your first mini-split or converting your entire home to ductless, our team is ready to design the perfect system for your space. Get a free estimate today.
BOOK NOW ALL MEP SERVICES