Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Trusted Fireplace Services for Ashburn Homeowners
A typical fireplace service call in Ashburn runs $150-$450 depending on whether you need a tune-up, repair, or full conversion, and most jobs are completed in a single visit. Hearthstone Chimney Co. has been serving Ashburn and Loudoun County since 1984, and our background-checked, uniformed technicians arrive with the parts and tools to finish the job that day. Call (571) 701-8135 - a live person answers 24 hours a day, 7 days a week.
We’ve worked on fireplaces in the older colonials near Ashburn Village, the townhomes off Waxpool Road, and the custom builds out by Brambleton. After 42 years, we know what fails in this market: dampers that rust shut from our humid summers, fireboxes cracked by freeze-thaw cycles, and gas inserts installed during the 2000s building boom that now need service. We document every inspection with photos you can see and a plain-English verdict. Our 90-Day Done Right Promise is in writing, no arguing - if it’s not right, we come back. That’s the Keystone Standard: Krafted right, Every time, Your home first, Standing behind it.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
What Our Fireplace Services Include
Gas Fireplace Service
Gas fireplaces need annual service to keep burners clean, pilots lit, and ventilation safe. In Ashburn, we see a lot of units that haven’t been touched since installation - sometimes fifteen or twenty years. Our technician pulls the logs, inspects the burner assembly, checks gas pressure with a manometer, and tests the thermocouple and safety shutoff. We service standing pilot and electronic ignition systems, and we stock parts for major brands so we’re not ordering and coming back.

Wood Burning Fireplace
A wood burning fireplace in Ashburn needs more than a swept chimney; the firebox, smoke shelf, and throat damper all take abuse from repeated heating and cooling. We inspect for creosote buildup, cracked refractory panels, and deteriorating mortar joints. If you’re burning seasoned hardwood and still getting smoke backup into the room, something’s wrong with the draw or the firebox dimensions, and we’ll find it with our level-2 camera inspection. Most wood burning fireplace repairs in Ashburn are done in one visit with no-hassle upfront pricing.

Fireplace Insert
Fireplace inserts - wood, gas, or pellet - are essentially stoves slipped into an existing fireplace opening, and they need specialized service because they’re self-contained systems with their own venting. We see plenty of inserts in Ashburn homes that were installed without proper liners, creating a fire hazard in the surrounding cavity. Our level-2 inspection checks the liner, the surround, and the clearances. We work with DuraFlex and Olympia Chimney liner systems, and we’ll show you photos of what we find before recommending any work.

Damper Repair
The damper is the metal plate that seals your fireplace when it’s not in use, and when it won’t open, close, or seal properly, you’re losing heated air up the chimney or risking smoke in the house. Ashburn’s humidity rusts steel dampers; the freeze-thaw cycles warp cast iron. We repair throat dampers, install top-sealing dampers for better efficiency, and replace rusted assemblies with new stainless steel or cast iron units. A new damper can cut your heating bills and stop that cold downdraft you’ve been living with.

Firebox Repair
The firebox is where the fire actually burns, and its refractory panels or brick lining take the direct heat. Cracks in the firebox let heat reach combustible framing, and that’s not a repair to defer. We replace cracked refractory panels, repoint firebrick with high-temperature refractory mortar, and rebuild fireboxes that have settled or spalled. In Ashburn’s older homes, especially near the original village center, we’ve rebuilt fireboxes that were installed in the 1970s with substandard materials. We use professional-grade refractory products from HeatShield and Copperfield - no builder-grade substitutes.

Fireplace Conversion
Converting a wood burning fireplace to gas, or switching from vented to vent-free, requires proper sizing, correct venting, and compliance with local codes. We handle the gas line coordination, install the burner and logs or insert, and run a combustion analysis to verify safe operation. In Ashburn, we convert a lot of wood fireplaces for homeowners who want convenience without losing the look of a real fire. Every conversion includes our level-2 inspection of the existing chimney and firebox, and we won’t proceed if the structure won’t support the new system safely.

Brands We Service for Fireplace Services
We’ve serviced hundreds of units from HeatShield and DuraFlex over the years, and we stock their OEM parts on our trucks. HeatShield’s cerfractory flue sealant and DuraFlex’s flexible stainless steel liners are our go-to materials for firebox resurfacing and relining jobs in Ashburn - we’ve seen how they hold up in our climate, and we trust them for our own customers’ homes. Our technicians are familiar with the installation manuals, common failure modes, and warranty requirements for both brands.
Olympia Chimney and Famco are also in our regular rotation. Olympia’s stainless steel and aluminum chimney liners and caps are built for mid-Atlantic weather, and we’ve installed their products in Ashburn homes from One Loudoun to the countryside near Route 15. Famco’s dampers and venting accessories solve draft problems we’ve diagnosed in everything from 1980s split-levels to new construction. Whether you have Olympia Chimney, Famco, HeatShield, DuraFlex, or any other make, we can help. We don’t limit our service to a short list of brands, and we don’t guess - we diagnose, document, and explain what we found before you spend a dollar.
Signs You Need Fireplace Services Right Now
- Smoke backing up into the room. This means your chimney isn’t drafting properly, and the cause could be a blocked flue, a stuck damper, or a firebox too small for the opening. Don’t burn again until it’s diagnosed - smoke in the house carries carbon monoxide risk and deposits creosote on walls and furniture.
- Cracked or crumbling firebrick. Heat escaping through cracks in the firebox can ignite nearby framing, and in Ashburn’s older homes with original construction, that framing may be closer to the fireplace than modern code allows. We replace panels or repoint brick before the damage spreads.
- Gas fireplace won’t stay lit or burns unevenly. A failing thermocouple, dirty burner ports, or incorrect gas pressure are the usual culprits. We test with calibrated equipment, not guesswork, and we won’t replace parts that don’t need replacing.
- Damper stuck open or won’t seal. An open damper in winter is like leaving a window cracked - your heated air goes straight up the chimney. In summer, a damper that won’t open traps humidity and accelerates rust and creosote odor.
- White staining or efflorescence on exterior brick. This means moisture is getting into the masonry, and in Ashburn’s climate with freeze-thaw cycles from November through March, that moisture expands and cracks brick and mortar. The source is often a missing or damaged chimney crown, but the fireplace and firebox need inspection too.
Our Fireplace Services Process - Step by Step
- 1
Call and schedule. When you call (571) 701-8135, a live person answers - no voicemail, no callback queue, not an app. We’ll ask about your fireplace type, what you’re experiencing, and find a time that works. Most Ashburn appointments are scheduled within a few days, and we’ll give you a two-hour arrival window.
- 2
Arrival and protection. Our technician arrives in a marked vehicle, in uniform, with ID. We lay drop cloths from the door to the fireplace and cover nearby furniture. We treat your home like we’d want ours treated - no muddy boots, no scratched floors.
- 3
Level-2 camera inspection. We insert a high-resolution camera up the flue and document the condition of the liner, smoke chamber, and damper. You see the photos on our tablet as we take them. The verdict is plain English: what’s fine, what needs attention now, and what can wait.
- 4
Upfront pricing and authorization. Before any work begins, you get a written estimate with the exact price - the number on the estimate is the number on the invoice. No surprises, no add-ons discovered mid-job. You approve it, or you don’t, and there’s no charge for the inspection if you decide to wait.
- 5
Service, testing, and cleanup. We complete the repair, cleaning, or conversion, test all functions, and run combustion analysis on gas units. We clean up thoroughly, review the work with you, and leave the written 90-Day Done Right Promise. If it’s not right, we come back. In writing, no arguing.
How Much Does Fireplace Services Cost in Ashburn?
A typical gas fireplace tune-up in Ashburn runs $150-$250, while a firebox repair with refractory panel replacement usually falls between $400-$850 depending on the unit size and access. See how much fireplace services costs for more details. Damper repair or replacement ranges from $300-$600 for a throat damper, or $500-$900 for a top-sealing energy-efficient model. Fireplace conversions start around $2,500 for a basic gas log set installation and can reach $4,500-$6,500 for a full insert with liner. Our $89 Seasonal Tune-Up is the best value for maintenance that prevents bigger bills later.
Several factors move the price. Access matters: a firebox in a tight corner with limited clearance costs more in labor than one in an open great room. The condition of the existing chimney and liner affects conversion pricing - if we find unlined flues or deteriorated masonry, we’ll show you photos and explain what must be done for safe operation. Parts availability for older or discontinued units can add cost if we need to source specialty components.
To avoid overpaying, get a second opinion on any written estimate over $250 - ours is free, and we’ll match our diagnosis to what you’ve already been told. We also offer $50 off any repair over $250. Every estimate from Hearthstone Chimney Co. includes the inspection, photos, and a written breakdown of parts and labor. Nothing is recommended without camera evidence you can see for yourself, and we’ll tell you plainly when work can safely wait. Call (571) 701-8135 for an exact quote - estimates are free.
Fireplace Services Near Ashburn - Our Service Area
We serve Ashburn and the surrounding Loudoun and Fairfax County communities from our local base. Typical drive times put us in Sterling within 15 minutes, Cascades in 20, and Sterling proper in about the same. We also work regularly in Herndon, Great Falls, South Riding, Brambleton, Belmont, Reston, Chantilly, Wolf Trap, and Oakton. Whether you’re in a 1980s colonial off Farmwell Road or a new build near the Ashburn Metro station, we know the construction styles and common fireplace issues in your neighborhood. Most jobs are completed in a single visit, and we schedule to keep our commitments - we’ll be there when we say.
Serving Ashburn, VA - Our Local Coverage Area
We’re based in the Ashburn area and know this community well, and we also provide fireplace services in Sterling. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Fireplace Services in Ashburn
Fireplace service is professional inspection, cleaning, and repair of your fireplace and its components to ensure safe, efficient operation. At Hearthstone Chimney Co., our service includes a level-2 camera inspection of the flue and firebox, cleaning of gas burners or wood fireboxes, damper testing and adjustment, and a written condition report with photos. We service gas fireplaces, wood burning fireplaces, fireplace inserts, and perform conversions between fuel types.

A standard tune-up or inspection takes 60-90 minutes, while repairs like damper replacement or firebox repointing typically run 2-4 hours. Fireplace conversions require a full day including inspection, installation, and combustion testing. We complete most jobs in a single visit because our technicians arrive with the tools and common parts needed for Ashburn homes. Call (571) 701-8135 to schedule - a live person answers 24/7.

Gas fireplace tune-ups run $150-$250, damper repairs $300-$900 depending on type, firebox repairs $400-$850, and conversions $2,500-$6,500. Our $89 Seasonal Tune-Up covers annual maintenance for most standard units. Every estimate is itemized and approved by you before work begins - the number on the estimate is the number on the invoice. Call (571) 701-8135 for an exact quote - estimates are free.

Yes. We regularly service and repair units from HeatShield, DuraFlex, Olympia Chimney, Famco, and Copperfield, and we work on all major manufacturers including Majestic, Heatilator, Napoleon, and Vermont Castings. Our trucks carry common parts for popular models, and we can source specialty components for discontinued units. If we can’t service your specific brand, we’ll tell you upfront - no guesswork.

Our phones are staffed by a live person 24 hours a day, 7 days a week, and we prioritize calls involving smoke backup, gas odors, or suspected carbon monoxide issues. For non-emergency repairs, we typically schedule within a few days. If you’re unsure whether your situation is urgent, call (571) 701-8135 and we’ll help you assess - safety first, always.

Every job is covered by our 90-Day Done Right Promise - in writing, no arguing. If anything we repaired or installed fails due to our workmanship within 90 days, we come back and make it right at no charge. This is backed by our K.E.Y.S. values code: Krafted right, Every time, Your home first, Standing behind it. Parts carry their manufacturer’s warranty, which we honor and help you claim if needed.

Clear a path from your entry door to the fireplace, remove valuables and fragile items from the mantel and hearth area, and avoid burning a fire for 24 hours before our arrival so the unit is cool. For gas units, make sure the gas shutoff is accessible. We bring drop cloths and protect your floors and furniture - you don’t need to cover anything yourself. If you have previous inspection reports or repair records, have them handy; they help us understand your fireplace’s history.

Schedule Your Fireplace Services in Ashburn Today
Call (571) 701-8135 now - a live person answers 24 hours a day, 7 days a week - whether you need us in Ashburn or want fireplace services in Herndon. We’ll schedule your inspection at a time that works, arrive when we say, and give you photos you can see with a plain-English verdict. Our 90-Day Done Right Promise is in writing, our pricing is upfront with no surprises, and we’ve been serving Ashburn and Loudoun County since 1984. A free estimate costs nothing, and it might save you from a bigger repair down the road.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Ashburn since 1984.





Before
After
Before
After
Before
After