Dennis, MA HVAC Services
Cape Cod summers pack your home with guests. Cape Cod winters empty the streets but test your heating system. Either way, your HVAC needs to perform.
GEM Plumbing & Heating Services, LLC has been providing HVAC services in Dennis since 1949. Quick repairs, new installations, seasonal maintenance, we handle it all with the reliability Cape homeowners expect.
Ready to talk to a home services specialist?
Year-Round Comfort for Your Dennis Home
Your HVAC system should handle whatever the Cape throws at it. When it can’t, when the AC fails during a July rental week or the heat quits in February, you need help fast.
At GEM, we make that happen with dependable Dennis heating and cooling services matched to your home’s needs. Whether it’s a classic Cape near Dennis Village, a beach cottage in Dennisport, a year-round home in East Dennis, or a newer build off Route 6A, our licensed technicians have seen it all.
We also handle geothermal installations, packaged HVAC units, zoned systems, and oil-to-gas conversions. From single repairs to whole-home system design, GEM delivers the climate control your Cape Cod home requires.
Dennis’s Trusted HVAC Company Since 1949
When your system stops working, you need someone who picks up the phone, explains the situation clearly, and fixes it right.
No games. No upselling. Just honest service from technicians who’ve worked on every type of Cape home: central air in year-round residences, heat pumps in newer construction, mini-splits adding comfort to seasonal rentals, and boilers keeping vintage cottages warm through nor’easters.
At GEM, we respond fast, communicate straight, and treat your home the way we’d treat our own. From first call to final walkthrough, we focus on getting your comfort back and keeping it there.
Getting HVAC Service in Dennis Is Easy
You need heating or cooling help. It shouldn’t be complicated to get it.
Here’s how GEM makes it simple:
Call or schedule online. We’ll listen, answer your questions, and find a time that works. No long waits, no runaround.
Your technician arrives, assesses your system, and explains what’s going on in plain language. You get honest options so you can decide with confidence.
Once you approve the work, we handle everything. Safe, efficient service that leaves your home clean and comfortable.
HVAC Specials & Discounts
Take advantage of our current offers & coupons!
Save on Energy Upgrades
with GEM and Mass Save® 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 home’s value, extend your equipment’s 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
Dennis Heating and Cooling Services
Cape Cod’s coastal climate brings humid summers and damp, cold winters. Salt air adds wear. Your HVAC system works hard here.
GEM provides complete Dennis heating and cooling services to keep your equipment running at its best. Emergency repairs, routine maintenance, full installations, and system replacements, we handle it all.
Air Conditioning
Central AC cools your whole home through existing ductwork.
When summer humidity settles over the Cape, a working AC system makes the difference between comfortable and miserable. GEM installs and services central air systems sized for your home, delivering reliable cooling without running up your electric bill.
Most AC failures happen on the hottest days when systems work hardest. Regular maintenance prevents most breakdowns. When something does fail, we get there fast and fix it right.
- Air Conditioning Repair: Blowing warm? Ice on the coils? Strange noises? We find the actual problem and make repairs that last.
- Air Conditioning Maintenance: Spring service catches small issues before summer guests arrive. Cleaning, testing, refrigerant check, drain clearing.
- Air Conditioning Installation: Proper sizing matters. Too big cycles constantly, too small runs nonstop. We match the system to your home.
- Air Conditioning Replacement: Old AC struggling? New equipment cools better, runs quieter, and cuts energy costs.
Furnaces
Furnaces deliver quick, reliable heat for homes with ductwork.
Gas, oil, and electric furnaces heat many Dennis homes, from year-round residences to winterized seasonal properties. GEM services all types to keep your family warm when nor’easters roll through.
- Furnace Installation: We size and install the right furnace for your home’s heating needs. Proper setup means years of reliable performance.
- Furnace Replacement: Older furnaces waste fuel. High-efficiency upgrades reduce heating costs and improve reliability.
- Furnace Repair: No heat? Weak airflow? Cycling on and off? We diagnose the issue and get your heat running again.
- Furnace Maintenance: Annual tune-ups keep your furnace safe and efficient. Cleaning, inspection, and adjustment before winter.
Heat Pumps
Heat pumps provide heating and cooling in one efficient system.
Heat pumps make sense for Cape Cod’s moderate climate. Modern cold-climate units handle even the coldest stretches. As a Mass Save approved installer, GEM helps you access rebates that reduce installation costs.
- Heat Pump Installation: We design systems matched to your home’s specific heating and cooling requirements. Proper installation is everything.
- Heat Pump Replacement: Older heat pumps struggle in cold weather. Today’s technology performs far better and costs less to operate.
- Heat Pump Repair: Refrigerant issues, defrost problems, electrical faults? We restore your system’s performance.
- Heat Pump Maintenance: Seasonal service keeps your heat pump efficient and catches small problems before they grow.
Ductless Mini-Splits
Ductless systems heat and cool without running ductwork through your home.
Perfect for older Cape homes without ducts, additions, finished attics, and seasonal cottages. Mini-splits provide room-by-room control with quiet, efficient operation.
- Ductless Mini-Split Installation: We configure single-zone or multi-zone systems to match your home’s layout and your comfort needs.
- Ductless Mini-Split Replacement: Older mini-splits lose efficiency. Current models run quieter and handle cold weather better.
- Ductless Mini-Split Repair: Not heating or cooling properly? Error codes? We troubleshoot and fix issues fast.
- Ductless Mini-Split Maintenance: Regular cleaning and service keeps your ductless system running efficiently season after season.
Boilers
Boilers provide steady, even heat through radiators and baseboard systems.
Many older Dennis homes rely on boiler heat. GEM’s licensed technicians handle gas and oil boilers, providing installation, repair, maintenance, and replacement to keep these dependable systems running.
Radiant Heating
Radiant floor heating warms your home from the ground up, eliminating cold floors and drafts.
Popular in Dennis renovations and new construction, radiant heat provides quiet, even warmth. GEM designs, installs, and maintains hydronic systems tailored to your project.
Oil to Gas Conversions
Cape Cod has a lot of oil heat. If natural gas reaches your street, conversion offers real benefits.
No more tank maintenance, no fuel deliveries, no oil price swings. GEM handles the complete conversion: evaluation, permits, installation, and final inspection.
Call (833) 222-2953 to schedule a service.
Questions?
Indoor Air Quality Services in Dennis
Every time your system runs, it circulates air that could carry dust, allergens, pet dander, and more.
Cape Cod’s mix of salt air, pollen, and humidity creates indoor air challenges. GEM provides solutions that keep your Dennis home’s air clean and comfortable.
Air Purifiers
Whole-home purifiers clean your air continuously through your HVAC system.
GEM installs air purification that works with your existing equipment to capture dust, allergens, bacteria, and odors.
Air Filtration
Better filtration traps smaller particles and reduces allergens throughout your home.
We offer media air cleaners and UV systems that neutralize contaminants before they circulate through your ductwork.
Humidity Control
Cape Cod humidity causes problems year-round. Summer dampness, winter dryness, both affect comfort and health.
GEM installs whole-home humidifiers and dehumidifiers that maintain proper moisture levels automatically.
Thermostats
The right thermostat improves comfort and reduces energy waste.
From programmable models to smart thermostats you control remotely, GEM installs equipment that works with your system and your lifestyle.
Air Handlers
Your air handler moves conditioned air throughout your home. Problems here affect every room.
Weak airflow, uneven temperatures, strange sounds? Often that’s the air handler. GEM provides installation, repair, and maintenance.
Additional HVAC Services in Dennis
GEM offers advanced services for complete home comfort.
We provide additional HVAC solutions in Dennis including:
Ductwork
Your ducts determine how well your system delivers comfort.
Leaks, poor design, and deterioration waste energy and create hot and cold spots. GEM tests, seals, repairs, and replaces ductwork to optimize performance.
Zoned HVAC
Zoning gives you independent temperature control in different areas.
Stop heating empty rooms. GEM designs and installs zoning systems that put comfort where you need it.
Geothermal
Geothermal systems tap stable underground temperatures for exceptional efficiency.
Where lot conditions allow, geothermal dramatically reduces heating and cooling costs. GEM handles design and installation.
Packaged HVAC
Packaged units combine heating and cooling in one outdoor cabinet.
When indoor space is limited, packaged systems offer a practical solution. GEM installs and services these all-in-one units.
GEM Has Your Whole Home Covered
Schedule HVAC Services in Dennis Today
For HVAC services in Dennis, trust the team that’s served Cape Cod since 1949. Repairs, maintenance, installations, GEM delivers reliable results backed by 75 years of experience.
Call or book online. Same-day appointments available.
Dennis HVAC FAQs
Does GEM service seasonal homes in Dennis?
Yes. Many Dennis properties are seasonal, and we understand the specific needs: opening and closing systems, winterization, and maintenance schedules that work with your rental calendar.
What rebates are available for Dennis homeowners?
As a Mass Save approved installer, GEM helps you access rebates on qualifying heat pumps and high-efficiency equipment. These programs can significantly reduce your installation costs.
How does salt air affect HVAC equipment?
Coastal exposure accelerates corrosion on outdoor units. Annual inspections catch deterioration early. For homes closest to the water, we can recommend corrosion-resistant equipment options.
How often should I service my HVAC system on Cape Cod?
Twice yearly works best: spring for cooling systems, fall for heating. Cape Cod’s humid summers and cold winters demand equipment that’s ready for both.
What’s the best heating system for an older Cape Cod home?
It depends on your home’s layout and existing infrastructure. Boilers with radiators suit many vintage properties. Ductless mini-splits add heating and cooling without invasive ductwork. We assess your situation and recommend what makes sense.