Gas Furnace Maintenance, Repair & Installation
Annual tune-ups, same-day repairs, and properly sized replacements for forced-air gas heat
A premium take on gas furnace maintenance, repair & installation
A gas furnace that short-cycles, runs loud, or leaves one floor cold is usually telling you something about airflow, ignition, or a heat exchanger that needs a closer look. Garcia Services HVAC services every major furnace brand found in Somerville, Medford, and Boston homes, from older 80% units in basement closets to modern condensing furnaces. We test combustion, check the heat exchanger, clean burners and flame sensors, and verify safety controls on every visit, and when a furnace is past saving we size and install the replacement correctly so it heats evenly without wasting gas.
This service is a good fit for homeowners and property managers who want a clean, professional result without juggling the details themselves. We handle the prep, the finish work, and the cleanup so the space is ready to enjoy when we're done.
Every project covers the essentials
- Combustion analysis and carbon monoxide safety check on every service
- Burner, igniter, flame sensor, and blower cleaning and adjustment
- Heat exchanger inspection with honest repair-or-replace advice
- Correctly sized high-efficiency replacement furnaces with new venting where required
- Thermostat, ductwork, and airflow fixes for uneven heat
- First maintenance visit free with every new furnace installation
Four steps from first call to final walkthrough
Diagnose
We test the ignition sequence, combustion, airflow, and safety controls to find the actual fault instead of swapping parts.
Written Options
Repair and replacement priced side by side so you can decide with the numbers in front of you.
Repair or Install
Repairs are done on the spot whenever parts allow. Installations include venting, gas connections, and a full startup.
Verify & Teach
We run the system through a full cycle, confirm temperature rise, and show you the filter and thermostat settings.
Need this service?
Tell us about your space and we'll send a clear, no-pressure estimate.
(781) 228-9873- Free, no-pressure estimates
- Local, responsive service
- Clear timelines & communication
Serving Somerville & Greater Boston
Based in Somerville, serving Greater Boston from Quincy up to Wilmington and out to Lynn. Not sure if we cover your address? Mention it when you request service.
The difference a careful job makes
Small choices in prep, materials, and finish work add up to a result that looks better and lasts longer.
Polished Finish
A clean, professional result that elevates the look and feel of the space.
Built to Last
Careful preparation and quality materials help the result hold up over time.
Detail-Driven
We sweat the edges, transitions, and finish work that cheaper jobs skip.
Respect for Time
Clear timelines and steady communication from first contact to walkthrough.
Detail-driven from start to finish
Premium results come from disciplined habits — not shortcuts. Here's the standard we hold ourselves to on every project.
Clear Communication
Straightforward answers, transparent scope, no surprises.
Careful Preparation
Surfaces, materials, and the site are prepped before any real work begins.
Professional Materials
We work with materials chosen for the finish and longevity they deliver.
Respect for Property
Floors, fixtures, and surroundings are protected throughout the project.
Final Quality Check
Every job ends with a walkthrough so the result matches expectations.
Questions, answered
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