AC maintenance & tune-ups
Seasonal air conditioner tune-ups that prevent breakdowns, extend equipment life and lower energy bills.
Same-week scheduling • Cape Cod, Islands & Boston
AC & heating repair that just works, without the hassle.
Air conditioning and heating maintenance, repair and installation on Cape Cod, the Islands and Boston, MA — honest diagnostics, quick scheduling and free estimates.
- Free estimates
- Certified technicians
- Work guaranteed
- 15+
- Towns served
- 1 day
- Reply to estimates
- 8+
- Major brands
- Mon–Sat
- 8am – 6pm
SERVICES
AC & heating services
Air conditioning and heating repair, maintenance and installation for homes and businesses — handled by our own technicians, never subcontracted.
Air conditioning repair
Fast diagnosis and repair of central AC, heat pumps and ductless units — no cooling, leaks, noise or frozen coils.
Furnace & heating repair
Furnace, heat pump and air handler repair and maintenance to keep your home warm through New England winters.
Ductless mini-split & heat pump installation
Single and multi-zone mini-split and heat pump installs, correctly sized for every room.
Coil cleaning & sanitizing
Full evaporator and condenser cleaning — removes coastal salt build-up for cleaner air and better efficiency.
Refrigerant leak detection & recharge
Pressure checks, leak detection and recharge to manufacturer specification.
Control board & parts repair
Replacement of boards, sensors, capacitors and motors using quality, brand-compatible parts.
New construction HVAC
Heating and cooling design and installation for new residential and commercial builds.
Free HVAC estimates
A no-cost technical assessment with a clear, fixed, no-pressure proposal.
BRANDS
Brands we repair, service and install
We work with the leading HVAC manufacturers — and we service equipment from any brand.
Carrier
Mitsubishi Electric
Bryant
American Standard
Bosch
Fujitsu
Daikin
Cooper & Hunter
We repair, maintain and install Carrier, Mitsubishi Electric, Bryant, American Standard, Bosch, Fujitsu, Daikin and Cooper & Hunter air conditioners, furnaces, heat pumps and ductless mini-splits — and we service most other makes too.
THE COMPANY
Who actually shows up
Direct, accountable heating and air conditioning service across Boston and Cape Cod.
Founded on Cape Cod
Certified technicians
Work guaranteed
G.D. HVAC serves residential and commercial clients across Cape Cod, the Islands and Boston directly. When you call us, you deal with seasoned HVAC technicians who know the region's climate demands, coastal salt air challenges, and local building codes. We never subcontract your comfort.
Our approach is built on transparent diagnostics, punctual arrivals, and respectful treatment of your property. We test every system thoroughly before leaving, explain options in plain English, and provide fixed pricing upfront.
OUR TEAM
- Uniformed, ID-carrying technicians
- Diagnosis explained before any work starts
- Fixed quote — no surprises on the invoice
- Clean, tidy space when we leave
Reliability
Total transparency from first assessment. You know exactly what needs fixing with zero hidden charges.
Prompt scheduling
Fully equipped service vans ready for emergency visits and confirmed arrival windows that respect your time.
Work guaranteed
All parts and labor carry a formal written guarantee for complete peace of mind and lasting safety.
SIMPLE PROCESS
How our service works
Four straightforward steps to restore optimal climate control and peak efficiency in your space.
Get in touch
Send your request with system make, capacity or your specific heating and cooling concern.
Get a fast estimate
Our technicians evaluate your needs and prepare a clear proposal with no hidden terms.
Schedule the visit
Select the convenient day and timeframe for our certified, uniformed team to arrive on site.
Guaranteed results
Complete installation or repair, performance testing, thorough cleanup and warranty paperwork.
SERVICE AREA
HVAC service on Cape Cod, the Islands & Boston
AC and heating service across Barnstable County, Plymouth, Martha's Vineyard, Nantucket and Greater Boston, Massachusetts — with quick travel across the region and same-week scheduling.
Cape Cod – Islands and Boston
Don't see your town? Get in touch and we'll confirm coverage.
Cape Cod · Islands · Boston — Massachusetts
INSTAGRAM
Watch the work
Short clips from installs, service calls and job sites across Cape Cod, the Islands and Boston. Follow @g.d.hvac on Instagram.
FAQ
AC & heating questions, answered
Quick answers about our HVAC repair, maintenance and installation services in Massachusetts.
Which areas do you serve?
We provide AC and heating service across Cape Cod — including Barnstable, Hyannis, Falmouth, Yarmouth, Dennis, Orleans, Sandwich, Bourne and Mashpee — plus Plymouth, Martha's Vineyard, Nantucket and Greater Boston, including Cambridge and Quincy, Massachusetts.
Do you repair Mitsubishi, Daikin and Fujitsu ductless mini-splits?
Yes. We repair, maintain and install ductless mini-split and heat pump systems from Mitsubishi Electric, Daikin, Fujitsu, Cooper & Hunter and other leading brands, as well as central air systems from Carrier, Bryant, American Standard and Bosch.
Do you service furnaces and heat pumps, or only air conditioners?
Both. G.D. HVAC handles heating and cooling: furnace repair and maintenance, heat pump service, air handlers, central air conditioning and ductless systems — so one team can keep your home comfortable all year.
How often should I have my AC and heating system serviced?
Plan on a tune-up once a year for each system — the air conditioner in spring and the furnace in fall. Heat pumps run in both seasons, so twice a year is ideal. Regular maintenance prevents breakdowns and lowers energy bills.
Why does coastal salt air matter for my AC on Cape Cod?
Salt air speeds up corrosion on outdoor condenser coils and electrical parts. Periodic coil cleaning and inspection removes salt build-up, protects efficiency and extends the life of your equipment.
How much does an estimate cost?
Estimates are free and come with no obligation. Send a request or call (508) 627-0091 and we reply within one business day with a clear, fixed quote.
Do you handle urgent AC or heating repairs?
Yes. Our fully equipped service vans are ready for urgent visits during business hours, Monday to Saturday from 8am to 6pm. Call (508) 627-0091 for the fastest response.
CONTACT
Request an estimate
We reply within one business day. Estimates are free and come with no obligation.
Don't wait until it breaks — request your free estimate today.
Fast, dependable heating and air conditioning service across Cape Cod, the Islands and Boston with G.D. HVAC.