First-Time Homeowners Guide to Chimney Care in Northern Virginia

Congratulations on Your New Home! Now About That Chimney…

First off — congratulations. Buying a home in Northern Virginia is a big deal, whether you landed in a quiet Fairfax neighborhood, a townhouse in Ashburn, or a fixer-upper in Manassas. You’ve got a fireplace, which means cozy winter evenings, a beautiful focal point in your living room, and one more system in your home that needs a little attention.

I’m Tim McGirl, owner of A&T Chimney Sweeps LLC. I’ve been servicing chimneys across Northern Virginia for over 10 years, and some of my favorite calls are from first-time homeowners. Not because their chimneys are in bad shape (though sometimes they are), but because I get to help people understand a part of their home that most folks never learned about.

Here’s the thing nobody tells you at closing: your home inspector probably didn’t give your chimney a real inspection. They looked at the outside, maybe peeked into the firebox, and checked a box. That’s not their fault — it’s not their specialty. But it means you could be sitting on hidden damage, creosote buildup from the previous owners, a cracked flue liner, or a missing chimney cap that’s been letting rain in for years.

This guide is everything I wish someone had handed me when I bought my first house. No jargon, no scare tactics — just straightforward information about how your chimney works, what it needs, and how to keep it safe without overthinking it.

The First Thing to Do: Get an Inspection

Before you burn a single log or flip on that gas fireplace, you need a Level 2 chimney inspection. This isn’t optional advice — it’s what the National Fire Protection Association (NFPA 211) specifically recommends whenever a property changes hands.

A Level 2 inspection goes far beyond what a home inspector does. We insert a camera into the flue and examine every inch of the interior — the liner, the mortar joints, the smoke chamber, the damper, and the connections. We also check the exterior: the crown, the cap, the flashing where the chimney meets the roof, and the masonry itself.

Why Can’t I Just Use It If It Looks Fine?

Because the most dangerous chimney problems are invisible from the living room. A cracked flue liner can allow heat to reach combustible framing inside your walls. Creosote buildup from previous owners can ignite during your first fire. A deteriorating mortar joint high inside the flue can allow carbon monoxide to leak into your home. None of these show up by looking into the firebox with a flashlight.

What Does a Level 2 Inspection Cost?

At A&T Chimney Sweeps, a standalone Level 2 inspection is $99. If the chimney also needs cleaning (and it very likely does if the previous owners used it regularly), our chimney cleaning is $139 and includes the Level 2 inspection. Either way, you’ll get a written report with photos showing exactly what we found.

Think of it this way: you just spent hundreds of thousands of dollars on this home. Spending $99 to confirm that one of its most critical safety systems is in good shape is the easiest decision you’ll make as a homeowner.

Schedule Your New Homeowner Inspection — $99

Understanding Your Fireplace System

You don’t need to become a chimney expert, but understanding the basic parts helps you communicate with professionals and catch small issues before they become expensive ones. Here’s your quick anatomy lesson:

The Firebox

This is the chamber where the fire burns — the part you can see from your living room. It’s lined with firebrick, which is designed to withstand extreme heat. Over time, firebricks can crack or the mortar between them can deteriorate. If you see gaps, missing chunks, or crumbling mortar in your firebox, that’s worth mentioning at your inspection.

The Damper

Located just above the firebox, the damper is a metal door that opens and closes. When you have a fire, it’s open to let smoke out. When the fireplace isn’t in use, it should be closed to prevent heated or cooled air from escaping up the chimney. Reach up into the firebox (when there’s no fire, obviously) and see if you can find a handle or lever. Move it back and forth. If it’s stuck, rusted, or missing entirely, that’s something to address.

The Flue and Flue Liner

The flue is the vertical channel that carries smoke from the firebox up and out of your home. Inside the flue is a liner — typically clay tiles, stainless steel, or sometimes a cast-in-place material. The liner protects the surrounding masonry and your home’s structure from extreme heat. A damaged liner is one of the most common and serious problems we find during inspections. You can’t see it from below, which is exactly why the camera inspection matters.

The Smoke Shelf and Smoke Chamber

Just above the damper, there’s a flat area called the smoke shelf. It catches rain and debris that falls down the chimney. Above that is the smoke chamber — a funnel-shaped area that compresses smoke from the wide firebox into the narrower flue. Both areas can accumulate creosote and debris over time.

The Chimney Crown

At the very top of your chimney, sitting on top of the masonry, is the crown — a concrete or morite slab that seals the top of the chimney around the flue. Think of it as the chimney’s roof. Crowns crack over time due to freeze-thaw cycles, and Northern Virginia’s winters give them plenty of opportunities to deteriorate. A cracked crown lets water in, which accelerates damage to everything below it.

The Chimney Cap

Sitting on top of the crown (or mounted to the flue) is the chimney cap — a metal cover with mesh screening. It keeps rain, animals, and debris out of your flue. If your chimney doesn’t have one, that’s priority number one. I cannot tell you how many inspections I’ve done in Northern Virginia where raccoons, birds, or squirrels have made a home in an uncapped chimney.

Flashing

Where your chimney meets the roof, you’ll see metal strips (usually aluminum or copper) sealed to both surfaces. This is flashing, and its job is to keep water from seeping into the gap between the chimney and the roof. Failed flashing is one of the most common sources of roof leaks in homes with chimneys.

Wood-Burning vs Gas Fireplace: What You Have and What It Needs

One of the first things to figure out is what type of fireplace you actually have. This determines how you use it and what maintenance it requires.

Wood-Burning Fireplace

If you see a firebox with a grate, andirons, or the remnants of previous fires (ash, partially burned logs), you have a traditional wood-burning fireplace. These are common in Northern Virginia homes built before 2000.

What it needs:

• Annual chimney cleaning to remove creosote buildup
• Level 2 inspection with every cleaning (included in our $139 service)
• A functioning damper, chimney cap, and intact flue liner
• Seasoned hardwood only — never pine, construction lumber, or treated wood
• Ash removal when buildup exceeds 1 inch in the firebox

Gas Fireplace (Log Set or Insert)

If you see ceramic logs sitting over a burner with a gas line, or a sealed glass-front insert with a switch or remote, you have a gas fireplace. These are extremely common in Northern Virginia homes built after 2000.

What it needs:

• Annual gas fireplace inspection and service
• Checking the venting system for blockages, corrosion, or disconnection
• Cleaning the burner, pilot assembly, and glass (if applicable)
• Carbon monoxide detector on every level of your home (this applies to wood-burning too)

A common misconception: “Gas fireplaces don’t need chimney maintenance.” They absolutely do. Gas produces carbon monoxide, and the venting system that carries it out of your home needs to be intact and clear. We service both types regularly.

Not Sure What You Have?

If you’re looking at your fireplace and genuinely aren’t sure what you’re dealing with, that’s perfectly fine — and more common than you’d think. Take a photo, schedule an inspection, and we’ll walk you through everything when we arrive.

Your First-Year Chimney Maintenance Calendar

Here’s a month-by-month guide for your first year as a homeowner with a fireplace. Clip this, bookmark it, put it on your fridge — whatever works. Once you get through the first year, you’ll have the rhythm down and it becomes second nature.

Month	What to Do
Move-In Month	Schedule your Level 2 inspection ($99) or cleaning + inspection ($139). Do not use the fireplace until this is done.
September	If you haven’t had your annual cleaning yet, book it now before the fall rush. Stock up on seasoned firewood if you have a wood-burning fireplace.
October	Test your damper — open and close it. Confirm your chimney cap is in place (look from the yard). Check that carbon monoxide detectors have fresh batteries.
November	Light your first fire of the season. Start small to warm the flue gradually. Confirm the damper is open before lighting. Verify smoke draws upward properly.
December–February	Enjoy your fireplace. Remove ashes when they exceed 1 inch. Burn only seasoned hardwood. Never leave a fire unattended.
March	As the season winds down, do a final ash cleanout. Close the damper when the fireplace is not in use to save on energy costs.
April–May	Best time to schedule your annual cleaning. Spring appointments are easier to book and you avoid the fall rush. Also a good time for dryer vent cleaning.
June–August	If any repairs were recommended during your cleaning, summer is ideal for scheduling them. Check the chimney exterior for visible cracks or deterioration. Confirm the chimney cap is still secured after spring storms.

The single most important takeaway: get your chimney cleaned and inspected once a year. The rest is details. If you do nothing else on this list, the annual professional cleaning covers the most critical bases.

Common Chimney Problems in Northern Virginia Homes

Northern Virginia has a wonderful mix of housing stock — everything from mid-century ramblers to brand-new construction. The age of your home gives us strong clues about what chimney issues to watch for.

Homes Built in the 1950s–1960s

These are the charming brick ramblers and colonials in Arlington, Falls Church, and older Fairfax neighborhoods. Common issues include:

• Deteriorated clay flue liners — after 60+ years, clay tiles can crack, shift, or separate at the joints
• Spalling brick — moisture gets into the masonry, freezes, and pops off the face of the brick
• Failed or missing chimney caps — many of these homes were built before caps were standard
• Crown deterioration — original crowns have endured decades of Northern Virginia freeze-thaw cycles
• No smoke shelf damper — some older designs lack a proper damper or have one that rusted out long ago

Homes Built in the 1970s–1980s

The suburban expansion era brought split-levels and colonials to places like Burke, Springfield, and Centreville. Common issues:

• Prefabricated (factory-built) fireplaces nearing end of life — many zero-clearance units from this era are 40+ years old and no longer meet safety standards
• Creosote-glazed flues — these homes often saw heavy fireplace use during the 1970s energy crisis
• Flashing failures — original flashing materials have often corroded or separated
• Undersized flues — some builders cut corners with flue sizing that doesn’t properly draft

Homes Built in the 1990s–2000s

The NOVA boom brought McMansions, townhouse communities, and large subdivisions to Loudoun, Prince William, and western Fairfax. Common issues:

• Gas fireplace venting problems — as gas fireplaces became standard, some installations had venting runs that are too long or improperly pitched
• Builder-grade chimney caps that rust — the cheapest possible cap was often installed and may need replacement within 15 years
• Crown cracks from thin or improperly mixed concrete — production builders sometimes skimped on crown construction
• Settling and separation — in rapidly developed areas, chimney structures can shift as soil settles, pulling flashing away from the roofline

Homes Built After 2010

Newer construction in Ashburn, Bristow, Gainesville, and South Riding typically has fewer structural issues, but we still see:

• Direct-vent gas fireplaces with blocked termination caps — debris, wasp nests, and bird nests can block exterior vents
• Cosmetic damage from construction debris left in the flue — mortar droppings and construction waste sitting on the smoke shelf
• Improperly sealed flashing on first use — occasionally a new home’s flashing was never properly sealed

Regardless of your home’s age, the inspection tells the full story. I’ve seen brand-new homes with problems and 70-year-old chimneys in beautiful condition. Age is a guide, not a diagnosis.

How Much Does Chimney Maintenance Cost?

One of the biggest concerns for new homeowners is cost. I get it — you just made the biggest purchase of your life and the budget is tight. Here’s what our services cost at A&T Chimney Sweeps, with no surprises or hidden fees:

Service	Price	What’s Included
Level 2 Chimney Inspection Only	$99	Camera inspection of entire flue interior, exterior assessment, written report with photos
Chimney Cleaning + Level 2 Inspection	$139	Full cleaning of flue, smoke shelf, and firebox plus complete Level 2 camera inspection
Dryer Vent Cleaning	$119	Complete cleaning of dryer vent duct from dryer to exterior exhaust point
Chimney + Dryer Vent Combo	$239	Both services in one visit — save $19 versus booking separately

For context, many chimney companies in Northern Virginia charge $200–$350 for a cleaning alone, and a Level 2 inspection is often an additional $150–$300 on top of that. Our $139 cleaning includes the Level 2 inspection because I believe every homeowner deserves to see the inside of their flue — not just the homeowners who can afford a premium add-on.

As a new homeowner, my recommendation is simple: if you’ve never used the fireplace and just want to know its condition, start with the $99 inspection. If you know the previous owners used it regularly, go straight for the $139 cleaning with inspection. And if you’ve been meaning to get your dryer vent cleaned too (you probably should — it’s a fire hazard), the $239 combo handles both in one visit.

View Full Pricing Details

5 Mistakes New Homeowners Make with Their Fireplace

I see these mistakes constantly — not because new homeowners are careless, but because nobody teaches this stuff. If you avoid these five things, you’re already ahead of most people.

Mistake #1: Burning the Wrong Wood

Softwoods like pine, cedar, and spruce burn fast, pop sparks, and produce massive amounts of creosote. Green (unseasoned) wood of any species is even worse — it smolders, produces heavy smoke, and coats your flue with a thick, tar-like layer that’s difficult to remove and highly flammable.

What to do instead: Burn only seasoned hardwood — oak, hickory, maple, or ash. “Seasoned” means it’s been split and dried for at least 6–12 months. The wood should be gray or dark on the ends, lightweight for its size, and make a hollow clunk (not a dull thud) when you knock two pieces together.

Mistake #2: Skipping the Chimney Cap

If your chimney doesn’t have a cap, you have an open hole in the top of your house. Rain pours in and deteriorates the flue liner and damper. Animals climb in and build nests that block the flue. Leaves and debris accumulate on the smoke shelf. I’ve pulled everything from raccoon families to decomposed birds out of uncapped chimneys in Fairfax and Loudoun counties.

What to do instead: Check whether you have a cap. Look at your chimney from the yard — you should see a metal cover with mesh screening on top. If it’s missing or damaged, have one installed. It’s one of the cheapest and most effective protective measures for your chimney.

Mistake #3: Never Getting the Chimney Inspected or Cleaned

Some homeowners go years — even decades — without a single inspection or cleaning. “We only use it a few times a year” is the most common justification. But even occasional use produces creosote, and the structural components of your chimney deteriorate whether you use the fireplace or not. Water damage, settling, and freeze-thaw cycles happen regardless of how many fires you light.

What to do instead: Annual inspection and cleaning, every year, no exceptions. It’s $139 at A&T Chimney Sweeps and takes about an hour.

Mistake #4: Closing the Damper Too Soon

After the flames die down, you might be tempted to close the damper to keep warm air in. But if embers are still glowing, closing the damper traps carbon monoxide and smoke in your home. This is genuinely dangerous.

What to do instead: Wait until the fire is completely out and the embers are fully cold — often several hours after the last visible flame — before closing the damper. When in doubt, leave it open overnight and close it in the morning.

Mistake #5: Ignoring Smoke Coming Back Into the Room

If smoke puffs back into your living room when you light a fire, that’s not normal and not something to “just deal with.” It could mean your damper isn’t fully open, your flue is blocked, your chimney is too cold to draft properly, or there’s a structural problem.

What to do instead: Stop using the fireplace and call a professional. Smoke in the room means combustion gases — including carbon monoxide — are entering your living space instead of going up and out.

When to Call a Professional vs What You Can Check Yourself

You don’t need a chimney sweep for everything. Here’s a simple breakdown of what you can handle yourself and when to pick up the phone.

What You Can Do Yourself

• Visual firebox check: Look inside the firebox for cracked firebricks, crumbling mortar, or excessive soot buildup. If you see damage, note it for your next professional visit.
• Damper test: Open and close the damper. It should move freely. Look up through the open damper — you should see daylight at the top of the flue (if uncapped) or the underside of the cap.
• Exterior visual inspection: From the ground, look at your chimney for leaning, missing brick, cracked mortar, or a missing/damaged cap. After storms, check for displaced flashing or cap damage.
• Ash removal: Scoop out ashes with a metal ash bucket when buildup exceeds 1 inch. Leave about a half-inch bed of ash — it actually helps insulate the fire.
• Carbon monoxide detector maintenance: Test CO detectors monthly and replace batteries annually. Place one on every level of your home, especially near sleeping areas.
• Check for drafts: With the damper closed, hold your hand near the firebox opening. If you feel cold air coming in, the damper may not be sealing properly.

When to Call a Professional

• Annual cleaning and inspection — this is not a DIY job. Professional-grade equipment, training, and camera technology are required to do it properly.
• Smoke entering the room — indicates a drafting problem, blockage, or structural issue
• White staining on exterior brick (efflorescence) — a sign that moisture is moving through the masonry
• Rust on the damper or firebox — indicates significant moisture intrusion
• Cracked or missing crown — requires professional repair to prevent water damage
• Animal sounds or odors from the chimney — do not attempt to remove animals yourself. Some, like chimney swifts, are federally protected.
• Any visible cracking or damage inside the flue — this requires a camera inspection and professional assessment
• A chimney fire (rumbling sound, dense smoke, intense heat) — call 911 first, then call us for the post-fire inspection

The bottom line: if something looks, sounds, or smells wrong, trust your instinct and call. It’s always better to have a professional tell you everything is fine than to ignore a warning sign. You can reach us at (703) 659-1699 or schedule online.

Frequently Asked Questions

Do I really need a chimney inspection if my home inspector already checked it?

Yes. A general home inspector performs a visual assessment of the chimney’s exterior and firebox — essentially a Level 1 look. They don’t use cameras, they don’t enter the flue, and they’re not chimney specialists. A Level 2 inspection examines the entire system including the flue interior, and it’s specifically required by NFPA 211 whenever a home is sold. Think of it as the difference between a general checkup and seeing a specialist.

How often does a chimney need to be cleaned?

At minimum, once per year. The NFPA recommends annual inspection and cleaning regardless of how often you use the fireplace. If you burn wood frequently (more than 2–3 times per week during the season), you may benefit from a mid-season check as well. At $139 for cleaning plus inspection, it’s one of the most affordable annual home maintenance tasks.

What’s the best time of year to schedule chimney cleaning?

Spring and summer. Most people wait until fall, which means longer wait times and less scheduling flexibility. Booking in April through August means you can often get a same-week appointment, and your chimney will be ready well before the first cold snap. Read our full guide on chimney cleaning for more details.

Is a gas fireplace really safer than wood-burning?

Gas fireplaces eliminate creosote risk and spark hazards, but they still produce carbon monoxide and still require a clear, intact venting system. A blocked or disconnected gas vent is extremely dangerous. Gas fireplaces need annual professional inspection just like wood-burning systems — the risks are different, not absent.

My chimney has white stains on the outside. Is that a problem?

Those white stains are called efflorescence — mineral deposits left behind when water moves through the masonry and evaporates on the surface. It’s a sign that moisture is getting into your chimney structure. While the staining itself is cosmetic, the underlying moisture can cause serious damage over time, including spalling brick, liner damage, and structural deterioration. Have it evaluated.

Can I burn a fire in a fireplace that hasn’t been used in years?

Do not light a fire until you’ve had the chimney inspected and cleaned. An unused chimney may have animal nests blocking the flue, a rusted-shut damper, a cracked liner, or accumulated debris on the smoke shelf. Any of these can cause a house fire or carbon monoxide poisoning. A $99 inspection or $139 cleaning gives you the all-clear — or identifies what needs to be fixed first.

What does a chimney sweep actually do during a cleaning?

We cover your floors and furniture with drop cloths, set up a HEPA-filtered vacuum at the firebox, and use professional rotary brushes to scrub the entire flue from top to bottom. We clean the smoke shelf, inspect the damper, and then run a camera through the flue to inspect the liner, mortar joints, and overall condition. You get a written report with photos. The whole process takes about an hour. Read our complete guide to what happens during a chimney sweep.

How do I know if my flue liner is damaged?

You typically can’t tell from the living room. Damaged liners are detected during a Level 2 camera inspection — the camera reveals cracks, gaps, missing sections, and deterioration that are invisible from below. Signs that might suggest liner problems include a smoky smell even when the fireplace isn’t in use, white flaking inside the firebox, or poor drafting during fires. But the only definitive way to know is a camera inspection.

Should I close the damper in the summer?

Yes. When the fireplace is not in use, the damper should be closed to prevent conditioned air from escaping up the chimney. An open damper in summer is like leaving a window open — your air conditioning is fighting an uphill battle. Just remember to open it before your first fire in the fall.

I’m buying a home and the inspection found chimney issues. How worried should I be?

It depends entirely on what was found. A missing chimney cap is a $150–$300 fix. A cracked crown can often be repaired for a few hundred dollars. A damaged flue liner requiring relining is a larger job, typically $1,500–$4,000 depending on the chimney. If your home inspection flagged chimney issues, having a dedicated chimney inspection done before closing gives you accurate repair estimates you can use in negotiations with the seller. Many of our Northern Virginia customers have used our inspection reports to get chimney repairs credited at closing.