Gas furnaces
From a cold room to a new system. Installation, repair, and maintenance for gas furnaces.
Explore service
HVAC installation, repair, and maintenance for Cape Cod homes, seasonal properties, and businesses.
Find the service that fits your equipment, whether you need heating repairs, air conditioning installation, or seasonal maintenance.
From a cold room to a new system. Installation, repair, and maintenance for gas furnaces.
Explore serviceKeep the summer heat outside. Central air conditioning installed, maintained, and repaired.
Explore serviceComfort where you need it. Flexible ductless options for individual rooms and living spaces.
Explore serviceKeep warmth flowing. Service and installation for cast iron, wall-hung, and combi gas boilers.
Explore serviceMini-split installations, boiler piping, and heating controls from OnCape jobs.

The outdoor unit, support stand, and line-set connection on a ductless installation.
Explore mini-splits
Copper connections, an expansion tank, and venting on a hydronic heating system.
Explore boiler services
Thermostats and zone controls photographed during service, with control-panel covers open.
Explore maintenanceIf we’ve helped with your heating or cooling, we’d appreciate your honest feedback. Your experience can help other Cape Cod homeowners and businesses choose their next service.
Open our profile, then choose “Write a review.”

A year-round home. A summer retreat. A business with doors to open. Every property has its own heating and cooling needs.
OnCape brings installation, repair, and maintenance together, with a straightforward way to get the conversation started.
Comfort for everyday life, seasonal stays, and the spaces in between.
Heating and cooling support for the space your business depends on.
Make maintenance part of your routine. Explore what’s included in a furnace, central AC, or gas boiler service.
Heating and cooling service for homes and businesses across Cape Cod. Tell us your town and we’ll take the next step together.
See our service areaBourne · Falmouth · Mashpee · Sandwich
Barnstable · Dennis · Yarmouth
Brewster · Chatham · Harwich · Orleans
Eastham · Wellfleet · Truro · Provincetown
Share your town, your system, and what you need using our request form or email.
The team follows up to understand the work and discuss the next step.
Confirm the scope and scheduling with OnCape. An inquiry is the start of the conversation.
Have a question about your system?
Let’s talk it through.
Our services cover gas furnaces, central air conditioning, ductless mini-splits, and gas boilers. We offer installation, repair, and maintenance. Tell us your system type when you get in touch, or choose “Not sure” on the request form.
Yes. You can request service for a home or a business anywhere on Cape Cod. Include the property type, town, and a short description of the equipment so we can discuss your needs.
Call 508-247-4569, use the service request form, or email service@oncapehvac.com. The team will discuss the work with you and arrange the next step. Sending a request does not reserve an appointment.
Yes. Include when you expect to be on the Cape and any access arrangements we should discuss. Share access codes or sensitive property details directly with the team, not through the website form.
A repair, a replacement, or a little preventive care. Tell us what you need.