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Caffi's logo and contact information for Plumbing, HVAC & Remodeling services on a red truck
Caffi's logo and contact information for Plumbing, HVAC & Remodeling services on a red truck

Gas Furnaces in Alexandria, VA

When winter settles into Alexandria, cold snaps off the Potomac can push nighttime temperatures well below freezing, and older homes in neighborhoods like Del Ray, Old Town, and Rosemont feel it fast. A dependable gas furnace keeps your home comfortable through damp coastal air and long stretches of mid-Atlantic winter. For more than 50 years, Caffi Services has helped Northern Virginia homeowners stay warm with expert installation, repair, and maintenance for every make and model of gas furnace.

Ready for a warmer, more reliable home? Contact Caffi Services to schedule  gas furnace service anywhere in Alexandria.

furnace service

When You Need Gas Furnace Service

Signs Your Furnace Needs Repair or Replacement

Gas furnaces rarely quit without warning. You may notice rooms heating unevenly, especially in Alexandria’s split-level and rowhome layouts, where airflow is already a challenge. Rising winter energy bills can signal a tired burner or worn heat exchanger, while constant on-off cycling often points to airflow problems, failing sensors, or an oversized system. If something feels “off,” it’s smarter and safer to have the furnace checked before the first major cold front arrives.

Advantages of Upgrading to a New Gas Furnace

Many Alexandria homes still rely on systems installed 15 to 20 years ago. Replacing an older furnace with a modern, high-efficiency model can dramatically improve comfort, cut fuel waste, and reduce noise during startup and operation. Newer units modulate heat more gradually, which means fewer temperature swings on those damp, windy winter days. Homeowners also appreciate lower utility bills, especially during the peak January to February heating season.

Our Gas Furnace Solutions

Professional Installation & System Sizing

A gas furnace has to be matched to the home, and Northern Virginia homes vary widely in age, insulation, and ductwork condition. Caffi Services evaluates your home’s size, heat loss points, and existing HVAC layout to recommend the right model and capacity. Proper sizing prevents the short-cycling and cold-spot issues that are common in older Alexandria properties. Once selected, our technicians install the system to manufacturer standards and local code requirements, ensuring long-term, reliable performance.

Comprehensive Repair & Preventive Maintenance

When your furnace starts falling behind, Caffi’s technicians get to the real cause quickly. In older Alexandria homes, issues like restricted ductwork, worn igniters, or blower motors working too hard are common. Our team checks every part of the system, including airflow, gas pressure, sensors, and venting, to pinpoint exactly what’s slowing your heat down. And because we service any make or model, we can restore safe, steady performance no matter what you have.

Regular tune-ups go a long way in Northern Virginia’s long winters. Caffi’s maintenance visits clean the system, tighten components, and make sure the furnace burns fuel efficiently. We also aim for environmentally friendly operation, tuning your system to reduce energy waste and keep heating costs under control.

Schedule Gas Furnace Service in Alexandria Today

If your furnace is struggling, running louder than usual, or simply reaching the end of its lifespan, Caffi Services can help you restore comfort quickly. We serve Alexandria and surrounding Northern Virginia communities with expert installation, repair, replacement, and 24/7 emergency support.

Schedule gas furnace service today with Caffi Services and get your home ready for the colder months ahead.

Frequently Asked Questions

How often should my gas furnace be serviced?


Once a year, ideally in early fall, to ensure safe operation and prevent mid-winter breakdowns.

Will a new gas furnace help lower my energy bills?


Yes. Modern systems use fuel more efficiently and maintain steadier heat, which typically reduces winter utility costs.

What size gas furnace do I need for my home?


Size depends on your home’s square footage, insulation levels, ductwork, and heat loss. A professional load calculation ensures the right fit.
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Reviews

Fast scheduling - and technician Brian was prompt, polite, professional and got the two plumbing tasks completed quickly. Would definitely recommend Ca...

Kath Harper

He did an excellent work. We are very pleased with the plumbing work Brian did for us. He is perfectionist. Thank you so much.

SiRi Bauer

From their front office staff answering my calls & scheduling appointments, to the technicians who show up at my house to do the work, I continue t...

Heather Hescheles

Service Tech Brian Gonzalez recently installed a new sump pump at our house and he was very professional and seemed to have done a good job. The lid f...

Rebecca Layne

Brian was amazing , very professional, efficient, polite and experienced! Would recommend to any and all to utilize his services. Was a lifesaver in a ...

Jack Collins

Caffi has been great for multiple services so far - installing a W/D in a new room, servicing our hot water heaters, boilers, and radiators, and servic...

Megan Burke

Brian was very professional and provided outstanding service this morning. He completed the repair with excellent workmanship, fully answered all quest...

Don&Marilou Mannebach

I called Caffi Services to repair a damaged toilet tank seal, which we were unable to remedy ourselves. We took advantage of the early 7:30-8am appoint...

Paula Beck

Caffi was originally came to my condo (hired by another owner) to try to find the source of a leak to the condo beneath me. First off, these guys are f...

Marivic Llacuna

My AC went out and I had to find an HVAC service ASAP. I have been burned by other companies so I put my trust based on recent reviews with Caffi. I al...

Eric Song

I have been a satisfied customer of Caffi Plumbing for 25 years (two houses!) and today was no exception. While no one loves paying for plumbing emerge...

Peg Willingham

Brian and Caesar did a great job. They cleared a drain blockage that a previous plumber could not. They worked well together and had the right tools ...

Larry

Brian was prompt (atypical for most services) informative (he provided a full explanation of what he would do and why; lepra me informed throughout the...

Michael Hendricks

William and Luis were great! Caffi was able to resolve a 1 month old issue with our mini split outdoor unit, that our other HVAC company couldn’t co...

Michael Groban

Robert of Caffi Plumbing is fantastic! He arrived early (but called first to see if it was convenient). He was beyond professional, knowledgeable, and...

Mary Diggs

Caffi did a great job when my 3-year old water heater started leaking — contacting the manufacturer and arranging for a a replacement under the warra...

James Horney

10 out of 10 experience with Caffi. Needed some tankless hot water heater maintenance, scheduling was easy, plumber was very prompt, super professional...

Taylor Billingsley

I have used Caffi services for many years and have always been pleased. Today my technician was Brian, who replaced a leaking gas valve. He was very k...

Mary Mytryshyn

Brian Gonzalez is a terrific service technician. He was punctual, polite, and professional. He completed the work quickly and accurately. Caffi has ...

Howard Seamens

I cannot say enough about Brian Mojica from Caffi Services. He is very professional, kind, polite and does an Excellent job. He cleaned up after the jo...

Linda Smith

We needed to replace the faucets for four sinks since the manufacturer no longer arrived the parts. A neighbor recommended Caffi Services and they ha...

Roger Cooper

Brian G and Martin L were completely professional and pleasant while installing a new toilet and scoping the line for blockage. Also, were agreeable to...

Macia Ihnen

We are grateful for the service our family has had from Caffi for the past 20 years. We have used them for HVAC as well as plumbing and they are very ...

Frances Hudgins

Great service from a trusted contractor. Thanks for getting me up and running again so quickly and for explaining it all to me.

Kate Pernia

I have used Caffi many times to do various work, from changing the water heater tank to fixing issues with the HVAC unit. What I like about them is the...

Rafael Aragao

The company employees are very professional and aware of how to assist with any questions. They arrived promptly and did the work with no issues. Thank...

Samira OHara

10 out of 10 experience with Caffi. Needed some tankless hot water heater maintenance, scheduling was easy, plumber was very prompt, super professional...

Taylor Billingsley

Brian - the technician - showed up early after contacting me to let me know he was enroute. Super friendly and knowledgeable Assessed the job and com...

Julian Hart

Caffi has provided plumbing services at my home in Arlington for thirty years. They are dependable and do quality work!

Sam

The service today was great (despite the bad news that I need a new system). William the tech was very efficient and competent and answered my many que...

Barbara

Great experiences from day one. Friendly and caring and quick and expert response to a variety of issues. They knew when something required immediate a...

Teddi

Thanks to Oscar & Brian! We can always count on Caffi.

Margaret

Caffi has the nicest and most professional team. They’re knowledgeable and always provide excellent service. Our plumbing need was taken care of qu...

Roger
Why

Choose Us

Licensed, bonded & Insured

We have all the necessary certifications
to operate in the state of Virginia.

Honest In-Home Estimates

Looking to install a new air conditioner?
Interested in starting a kitchen remodel?
We’ll provide an honest, upfront estimate
to help you make an informed decision.

Environmentally friendly solutions

We keep the environment in mind by
installing energy-efficiency HVAC systems,
providing chemical-free drain cleaning,
and renovating with eco-friendly building
materials.

Workmanship & Parts Guaranteed

With our 100% satisfaction guarantee,
you can count on us to stand behind
our work every step of the way.

Convenient
Appointment Times

We schedule service visits in four-hour
windows to help us accommodate
emergencies that may arise. For your
convenience, our technicians will call
you when they’re on their way so you
know when to expect them.

Same Day Service

Emergencies can’t wait. If you have a
stopped-up toilet or broken furnace,
give us a call for same-day, 24/7 service.

Why

Choose Us

Licensed, bonded & Insured

We have all the necessary certifications to operate in the state of Virginia.

Honest In-Home Estimates

Looking to install a new air conditioner? Interested in starting a kitchen remodel? We’ll provide an honest, upfront estimate to help you make an informed decision.

Environmentally friendly solutions

We keep the environment in mind by installing energy-efficiency HVAC systems, providing chemical-free drain cleaning, and renovating with eco-friendly building materials.

Workmanship & Parts Guaranteed

With our 100% satisfaction guarantee, you can count on us to stand behind our work every step of the way.

Convenient
Appointment Times

We schedule service visits in four-hour windows to help us accommodate emergencies that may arise. For your convenience, our technicians will call you when they’re on their way so you know when to expect them.

Same Day Service

Emergencies can’t wait. If you have a stopped-up toilet or broken furnace, give us a call for same-day, 24/7 service.