Fast, Reliable Heating & Furnace Across Alexandria
Heating and furnace repair in Alexandria, VA typically costs $150-$700, with most service calls completed same-day by our Heating & Furnace team. Furnace replacement runs $3,500-$7,500 depending on your home’s ductwork condition and whether you’re in a historic overlay district requiring additional permits. Call (866) 561-3358 anytime - a live person answers, 24 hours a day, including the 2 a.m. no-heat emergencies we see every winter when the Potomac wind cuts through Del Ray and Rosemont.
We’ve been driving to Alexandria from our Washington DC roots for over 8 years. Glen Hartman started this company in 1984, and we know the difference between a 1920s Craftsman bungalow on Mount Vernon Avenue with a coal-chute retrofit and a 1960s Cape Cod on Seminary Road with original sheet-metal ductwork. That knowledge matters when your furnace quits on a January night and the technician needs the right parts on the truck the first time.
Why Fireside Heating & Air Co. Is Alexandria’s Preferred Heating & Furnace Company
Alexandria homeowners stay with us because we answer the phone. Not a voicemail tree. Not an answering service in another state. A live Fireside employee, at midnight on Christmas, at 5 a.m. on a Sunday. We’ve taken calls from frantic homeowners in 22301 whose gravity furnace finally gave out, from families in Hollin Hills whose radiant panels went cold, from retirees in 22302 who just want someone to show up when promised and quote a price that doesn’t change.
Our 90-Day Done Right Promise covers every job in Alexandria - written, no paperwork, no arguing. If it’s not right, we make it right. Period. Our technicians are background-checked, uniformed, trained as journeymen, and they put on shoe covers without being asked. They work in your home the way they would in their own mother’s.
Most repairs we complete in a single visit. We stock parts for Carrier, Trane, Bryant, and American Standard on our trucks, and we maintain relationships with supply houses throughout Northern Virginia so we don’t waste your time ordering obscure components. The price we quote is the price you pay. Full stop.
Our Heating & Furnace Services in Alexandria
Furnace Repair
Furnace repair in Alexandria runs $150-$700 depending on the component and accessibility. We see a lot of failed electronic ignitors in the southern ZIPs - 22306, 22307, 22308 - where 1950s ranch electrical systems deliver voltage spikes above 130 V peak and burn out ignitors within two years of an oil-to-gas conversion. In Del Ray and Rosemont, we regularly find return air drops undersized because the original coal chute was never designed for modern ductwork, forcing static pressure above 0.8 in. w.c. and causing the high-limit switch to trip. We diagnose the actual problem, not just the symptom.
Furnace Replacement
Furnace replacement is our most called-for service in Alexandria, especially in the pre-war neighborhoods where original gravity furnaces and early forced-air systems have reached the end of their useful life. Here’s where Alexandria gets complicated: unlike neighboring Fairfax County, any furnace replacement in a historic overlay district like Del Ray requires a separate Architectural Review Board (ARB) approval before the mechanical permit is issued, even for the same equipment brand that the homeowner next door installed without review just across the street in Fairfax County. We’ve navigated this process dozens of times. We know the city’s building department inspectors by name, we understand the historic preservation review workflows, and we build that timeline into our project schedule so you’re not caught off-guard by a three-week permit delay.
For homes without existing ductwork - common in 22301 and 22302 Craftsman bungalows - we design compact duct systems using high-velocity mini-duct or strategically placed floor and wall registers that minimize intrusion into plaster walls. It’s not as simple as a suburban new construction install, but it’s absolutely doable.
Furnace Tune-Up
Our $89 Seasonal Tune-Up is the best investment you can make in an Alexandria heating system. We clean burners, test gas pressure, check heat exchanger integrity with a combustion analyzer, and inspect flue venting - critical in this city where we’ve seen condensing furnace flues accidentally routed through historic brick chimneys without proper AL29-4C liner, which the Alexandria inspection office flags immediately. Alexandria’s position along the Potomac means sustained summer dew points above 70°F, and that latent load corrodes heat exchangers and fouls burners faster than inland climates. A fall tune-up catches what Alexandria’s humidity has been quietly damaging since spring.
Heat Exchanger Repair & Replacement
Heat exchanger failure is serious. Carbon monoxide risk. No exceptions, no temporary fixes - a cracked heat exchanger means the furnace is done, or the heat exchanger gets replaced. In Alexandria’s 1950s-1960s southern ZIPs, we find heat exchangers failing prematurely because original sheet-metal ductwork is undersized and unsealed, causing the furnace to cycle longer and hotter than designed. In historic districts, we sometimes encounter heat exchangers in furnaces that were never properly commissioned after a previous contractor’s install, running at incorrect temperature rise. We test. We measure. We show you the combustion analysis printout. If it’s cracked, we explain your options: heat exchanger replacement if the furnace age warrants it, or full furnace replacement with proper load calculation and duct design.
Gas Valve Repair
Gas valve problems present as intermittent heating, short cycling, or no ignition at all. In Alexandria, we see gas valves failing after years of marginal gas pressure - the city’s older infrastructure in some neighborhoods delivers pressure at the low end of acceptable range, and the valve’s diaphragm eventually fatigues. We don’t just swap the valve. We test inlet and outlet pressure, check for gas leaks with electronic detection, and verify proper manifold pressure after repair. If the gas line itself is the issue, we coordinate with Washington Gas and the city inspector to resolve it properly.
Ignitor Replacement
Hot surface ignitors and intermittent pilot assemblies are common failure points, especially after oil-to-gas conversions where the electrical system wasn’t evaluated. We stock ignitors for Bryant, Carrier, Trane, and American Standard on our trucks, and we carry universal replacements for older furnaces where OEM parts are discontinued. The fix usually takes under an hour once diagnosed.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Alexandria
We train our technicians on nine major residential brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Alexandria customers, that means we stock the most common failure parts locally - ignitors, gas valves, blower motors, control boards - and we have same-day access through our supply network for anything we don’t carry. We replaced a 1950s oil-fired gravity furnace in a Hollin Hills mid-century modern home on Moskins Drive with a dual-fuel heat pump and a compact gas furnace, fitting the low-pitch shed roof by fabricating a custom plenum in the unconditioned crawlspace. The original radiant-panel system was left in place as backup, and we sourced a vintage Bell & Gossett circulator from a local supply house in Lincolnia to keep the old zone valves operational. That’s the kind of problem-solving that comes from knowing the equipment and knowing this city.
Common Heating & Furnace Problems We See in Alexandria Homes
- Historic chimney flues without AL29-4C liners. Contractors install high-efficiency condensing furnaces and vent them through original brick chimneys. The condensate destroys the mortar. Alexandria’s inspectors catch this every time, but only after the homeowner has paid for a failed install. We check the flue before we quote.
- Undersized return air in 1920s-1940s row houses. The coal chute was never meant to move 1,200 CFM. We measure static pressure and design return air modifications that don’t destroy your home’s character.
- Voltage-spiked ignitors in 1950s southern ZIP ranches. Original electrical systems with loose neutral connections send 130+ volts to the ignitor. We test voltage stability and recommend electrical remediation if needed, so you’re not replacing ignitors every other winter.
- Corroded heat exchangers from Alexandria’s humidity load. The Potomac’s summer dew points don’t just make August miserable - they rust out heat exchangers and foul burners. Our tune-ups include corrosion inspection and combustion chamber cleaning that inland contractors often skip.
Heating and Cooling in Alexandria That Stays Done Right
From the humid summers off the Potomac to the hard freezes that roll down from the Piedmont, Washington DC Metro weather finds the weak spot in every system. Fireside keeps furnaces and ACs honest here. Straight talk on repair versus replace. Tune-ups that catch the failure before the first heat wave hits. And when your builder-grade unit from the ’90s finally quits at 2 a.m., a person answers the phone.
Our K.E.Y.S. code means Your Home First, every time. Shoe covers on without asking. The price quoted is the price paid. we coordinate through our Washington DC Metro service area Ask about our $89 seasonal tune-up, and remember: Fireside is named for the warmest word in the American memory. We’ll be there when we say.
Heating and Cooling in Alexandria That Stays Done Right
Winters here can bite hard, and summer humidity wears equipment down faster than dry heat ever could. Fireside Heating & Air Co. keeps Alexandria homes running through both, with straight talk on whether to repair or replace, tune-ups that catch trouble before the first freeze or heat wave, and journeymen who treat your house like they’d treat their mother’s. The price we quote is the price you pay. No surprises on the bill.
Our K.E.Y.S. code means every job is Krafted right, done right Every time, with Your home first, and we keep Standing behind it. we coordinate through our Washington DC Metro service area
Heating and Cooling in Alexandria That Stays Done Right
Winters here can bite hard, and summer humidity wears equipment down faster than dry heat ever could. Fireside Heating & Air Co. keeps Alexandria homes running through both, with straight talk on whether to repair or replace, tune-ups that catch trouble before the first freeze or heat wave, and journeymen who treat your house like they’d treat their mother’s. The price we quote is the price you pay. No surprises on the bill.
Our K.E.Y.S. code means every job is Krafted right, done right Every time, with Your home first, and we keep Standing behind it. we coordinate through our Washington DC Metro service area
Pricing for Heating & Furnace in Alexandria, VA
Here’s what heating and furnace work costs in Alexandria’s market:
| Service | Price Range |
|---|---|
| Furnace Repair | $150-$700 |
| Furnace Replacement | $3,500-$7,500 |
| Seasonal Tune-Up | $89 |
| Heat Exchanger Replacement | $800-$2,200 (includes diagnostic, part, labor) |
| Gas Valve Repair/Replacement | $250-$600 |
| Ignitor Replacement | $150-$350 |
What moves the price? Ductwork condition, accessibility (crawlspace versus closet), whether you’re in a historic district requiring ARB review, and whether the job needs custom fabrication for tight spaces like Hollin Hills’ low-pitch roofs. We quote upfront. The price we say is the price you pay. We also offer $50 off any repair over $250, free second opinions on any written estimate, and a permanent 5% discount for seniors and veterans. Call (866) 561-3358 for an exact quote - estimates are free.
We Also Serve Cities Near Alexandria
Our Heating & Furnace in Alexandria coverage extends throughout Northern Virginia, including Arlington, Washington, McLean, and Washington, D.C. We understand the permitting differences between Alexandria’s independent city structure and Fairfax County’s system, and we maintain active licenses and relationships in each jurisdiction we serve. Same live-answer phones, same 90-Day Done Right Promise, same upfront pricing - whether you’re on Chain Bridge Road in McLean or Capitol Hill in D.C.
Serving Alexandria, VA - Our Local Coverage Area
We’re based in the Alexandria area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Heating & Furnace in Alexandria
Yes. Any furnace replacement in a historic overlay district like Del Ray or Rosemont requires Architectural Review Board approval before the mechanical permit is issued, even for equipment that wouldn’t need review just across the street in Fairfax County. This adds roughly 2-3 weeks to the project timeline, and the ARB examines exterior equipment placement, building penetrations, and visible venting. We’ve completed this process many times and build it into our schedule so you’re not surprised. Call (866) 561-3358 and we’ll walk you through what’s needed for your specific address.
Yes, we can. We use high-velocity mini-duct systems or strategically placed floor and wall registers that fit within existing cavities, avoiding the plaster destruction that older homeowners rightly fear. The key is a proper load calculation and duct design that accounts for your home’s construction - something we do routinely in 22301 and 22302. Every home is different, so we start with a free in-home evaluation. Call (866) 561-3358 to schedule.
Failed ignitors and dirty flame sensors cause the most no-heat calls we receive during Alexandria’s winter cold snaps, which typically drop into the mid-20s°F with periodic ice storms. The ignitor failures concentrate in southern ZIPs with aging electrical infrastructure, while dirty sensors result from deferred maintenance - burners that haven’t been cleaned in years, running in Alexandria’s humid summer conditions that accelerate corrosion. A $89 seasonal tune-up prevents most of these failures. Call (866) 561-3358 to book before the first freeze.
We can do both. We repair radiant-panel systems by sourcing obsolete parts like vintage Bell & Gossett circulators and zone valves through our local supply relationships, and we understand the unique control wiring these 1940s-1960s systems use. For conversion to forced air, we design compact duct systems that respect the low-pitch shed roofs and open floor plans Charles Goodman specified, often using the unconditioned crawlspace for equipment and custom-fabricated plenums. We’ve done both on Moskins Drive and throughout Hollin Hills. Call (866) 561-3358 for a consultation - we’ll assess your specific system and explain the tradeoffs honestly.
Look for rooms that never reach temperature, excessive dust, rust spots on visible duct runs, or a furnace that runs constantly without satisfying the thermostat. We measure static pressure and perform duct blaster testing to quantify leakage - original 1950s sheet-metal ductwork in Alexandria’s southern ZIPs is typically unsealed and increasingly corroded after 60-plus years, with leakage rates often exceeding 30%. Replacement with properly sized, sealed ductwork usually pays for itself in comfort and efficiency within a few years. Call (866) 561-3358 for a free duct assessment and upfront quote.
Written by Glen Hartman, Owner at Fireside Heating & Air Co., serving Alexandria since 2018.