
Cambridge, MA HVAC Services
When you need HVAC services in Cambridge, a triple-decker in Cambridgeport has different needs than a condo in Kendall Square. A Victorian near Harvard Square is nothing like a converted loft in East Cambridge. We have worked on all of them.
GEM Plumbing & Heating Services, LLC has provided heating and cooling services in Cambridge since 1949. We know the homes here because we have been working on them for decades. Whatever your home needs, we have handled it before.
Ready to talk to a home services specialist?
Heating and Cooling for Cambridge Homes
This city packs a century of architecture into a few square miles. You need technicians who recognize what they are walking into and know how to work on it.
GEM helps Cambridge homeowners and condo owners keep their homes comfortable. We have worked in every neighborhood and understand what different homes need. Our technicians arrive knowing what they are likely to encounter and how to address it.
Emergency repairs, system upgrades, routine maintenance, complete installations. Whatever your Cambridge home requires, we handle it.
Cambridge’s Trusted HVAC Company Since 1949
You want technicians who know urban homes and have solved problems like yours before.
GEM technicians have served Cambridge for decades. We have maintained boilers in triple-deckers near Central Square, replaced aging equipment in homes throughout Neighborhood Nine, installed ductless systems in condos along Mass Ave, and helped homeowners from East Cambridge to Strawberry Hill stay comfortable. That depth of local knowledge shows in our work.
How GEM Makes Service Easy
Whether you own a house or a condo, getting help should be simple.
Here is our process:
Call or book online. Tell us what is happening. Cambridge is in our core coverage, and same-day service is often available.
Your technician explains the problem and cost before starting work. You understand what you are paying for.
We fix it right. Your home works. You move on.
HVAC Specials & Discounts
Take advantage of our current offers & coupons!

Save on Energy Upgrades
with GEM and Mass Saveยฎ Rebates

The Home Comfort Club
Service plan starting at
$49.99 /mo
Peace of Mind, Worry-Free
Members get discounts on repairs, priority scheduling, and seasonal tune-ups that keep systems running efficiently year-round.
Preserve your homeโs value, extend your equipmentโs life span, and ease your worries with our membership plans.
Trust us to always send our best local, trained, and screened technicians to your home, no matter the hour.
With us, you can spend less money to take better care of your home.
Keep all parts of your home operating at peak efficiency with regular maintenance tune-ups.
Get Pre-Approved Financing

Cambridge Heating and Cooling Services
Massachusetts winters demand reliable heat. Cambridge’s older homes need systems that perform through months of cold without constant attention.
GEM keeps Cambridge homes comfortable with heating and cooling services matched to this city’s housing.
Air Conditioning
Central AC keeps your home comfortable through summer. When it fails during a heat wave, everyone suffers.
AC systems work hardest during extreme heat, exactly when failures tend to happen. Regular maintenance prevents most problems, and when something does fail, we get there fast.
- Air Conditioning Replacement: When AC equipment in your Cambridge home struggles to keep up or costs too much to run, a new system delivers better comfort and efficiency.
- Air Conditioning Repair: When your Cambridge AC blows warm air, makes strange sounds, or cycles constantly, we find the problem and fix it right.
- Air Conditioning Maintenance: Spring AC maintenance for Cambridge homes gets systems ready for summer. We clean coils, check refrigerant, and catch problems before they become emergencies.
- Air Conditioning Installation: AC installation in Cambridge means sizing equipment for your home. We match systems to houses and condos so you get effective cooling without excessive energy costs.
Furnaces
Your furnace keeps your home livable all winter. When it runs well, nobody thinks about it. That is what you want.
Gas furnaces serve many Cambridge homes effectively. These systems need proper maintenance to perform efficiently, especially in older homes where distribution systems may have their own challenges.
- Furnace Replacement: Older furnaces in Cambridge homes waste fuel and risk mid-winter failures. Modern high-efficiency models deliver better heat with lower operating costs.
- Furnace Repair: When your Cambridge furnace produces no heat, uneven temperatures, strange sounds, or cycling problems, we diagnose accurately and fix completely.
- Furnace Maintenance: Annual furnace maintenance keeps Cambridge families warm and safe. We inspect components and verify proper operation before winter arrives.
- Furnace Installation: Furnace installation in Cambridge means selecting equipment matched to your home’s requirements. We size systems for consistent heat throughout.
Ductless Mini-Splits
Cambridge’s older homes often lack ductwork. Ductless systems add heating and cooling without invasive construction.
Adding cooling to a triple-decker, conditioning a converted attic, solving comfort problems in specific rooms. Ductless mini-splits handle all of these with individual temperature control.
- Ductless Mini-Split Replacement: When ductless equipment in your Cambridge home loses efficiency, newer models restore performance with better features and lower operating costs.
- Ductless Mini-Split Repair: Cambridge ductless systems with drainage problems, refrigerant issues, or electronic faults need professional attention. We diagnose accurately and restore function.
- Ductless Mini-Split Maintenance: Regular ductless maintenance extends system life for Cambridge homeowners. We clean filters, check coils, and verify operation through every season.
- Ductless Mini-Split Installation: Ductless installation in Cambridge means designing zone configurations for your home. We solve comfort problems without tearing into walls.
Heat Pumps
Heat pumps provide heating and cooling with exceptional efficiency. Cambridge homeowners watching operating costs and environmental impact are choosing this technology.
Heat pumps move warmth rather than creating it, which explains their efficiency advantage. For condos and smaller homes especially, heat pumps offer compelling economics. As a Mass Save approved installer, we help Cambridge residents access rebates.
- Heat Pump Replacement: Cambridge homeowners with heat pumps that struggle in cold weather or have declining efficiency benefit from upgrading. Newer models perform significantly better.
- Heat Pump Repair: When your Cambridge heat pump has refrigerant issues, compressor problems, or defrost failures, we find what is wrong and fix it.
- Heat Pump Maintenance: Regular heat pump maintenance keeps Cambridge systems efficient year-round. We verify operation in both heating and cooling modes.
- Heat Pump Installation: Heat pump installation in Cambridge means designing systems for your home’s specific needs. Houses and condos have different requirements, and we configure accordingly.
Boilers
Many Cambridge homes rely on boilers for heat. These systems provide steady, even warmth and need to work reliably through the entire winter.
Boilers with radiators or baseboard heat are common in Cambridge’s older homes. GEM services gas and oil boilers citywide.
Oil to Gas Conversions
Cambridge homes still using oil can benefit from natural gas conversion. Eliminates deliveries and typically reduces operating costs.
We manage complete conversions for Cambridge homeowners.
Radiant Heating
Radiant floor heat delivers even, comfortable warmth. Popular in Cambridge renovations and condo conversions.
We design and install radiant systems for residential and light commercial applications throughout Cambridge.
Call (833) 222-2953 to schedule services.
Questions?

Indoor Air Quality in Cambridge
Urban air quality affects what you breathe inside. Traffic, density, and older homes all play a role.
GEM helps Cambridge residents improve indoor air with solutions that work.
Humidity Control
Balanced moisture levels year-round.
Too dry in winter, too humid in summer. We install equipment that maintains healthy levels automatically.
Air Purifiers
Cleaner air for your Cambridge home.
Whole-home purification removes particles and contaminants from your air continuously. Cleaner air means better health.
Air Filtration
Advanced filtration for healthier indoor air.
Better filters catch what standard filters miss. Important in urban environments like Cambridge.
Thermostats
Precise temperature control for your Cambridge home.
Modern thermostats save energy and improve control. We install everything from basic programmable models to smart home systems.
Air Handlers
The heart of your HVAC airflow.
Air handlers move conditioned air through your ducts. When they have problems, you get uneven temperatures and higher bills. GEM keeps them running right.
Additional Services for Cambridge Homes
Certain comfort challenges require specialized approaches.
GEM offers advanced services beyond standard heating and cooling.
Ductwork
Efficient airflow throughout your home.
Leaky or poorly designed ducts waste energy. We repair, seal, and replace ductwork throughout Cambridge.
Geothermal
Ultra-efficient heating and cooling from the earth.
For Cambridge homes with adequate outdoor space, geothermal systems offer exceptional efficiency.
Zoned HVAC
Independent temperature control for different areas.
Control temperatures independently in different areas. Useful for multi-level homes and varied heating needs.
Packaged HVAC
All-in-one heating and cooling systems.
All-in-one units for homes where indoor mechanical space is limited.
GEM Has Your Whole Home Covered
Schedule HVAC Services in Cambridge Today
For HVAC services in Cambridge, call the team that has kept Greater Boston comfortable since 1949. We know this city. We know its homes. We know how to keep them running. Call or book online. Same-day appointments available.
HVAC FAQs
Does GEM work on condos and triple-deckers?
Yes. We service all types of Cambridge housing. Whether you need work on a condo unit or a triple-decker, we handle it.
What heating system works best for Cambridge’s older homes?
Many older Cambridge homes use boilers effectively. These systems can last decades with proper maintenance. Heat pumps are increasingly popular for homes looking to add cooling or reduce operating costs. We evaluate your specific situation and explain options.
How can I reduce heating costs in my Cambridge home?
High-efficiency equipment, duct sealing, improved insulation, and heat pumps all contribute to lower costs. Mass Save rebates improve returns on many upgrades. We assess your situation and recommend where to start.
Are heat pumps practical for older Cambridge homes and condos?
Absolutely. Ductless heat pumps are especially popular because they require no ductwork installation. Mass Save rebates help with costs, and energy savings are significant.
How often should Cambridge homes receive HVAC service?
Twice yearly: spring for cooling, fall for heating. Homes with older equipment or heavy use may benefit from more frequent attention.


