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SCHEDULED DPF CLEANING PROGRAMS
Fleet DPF clean intervals tracked per VIN. Proactive cleaning prevents derate events and extends DPF life across the fleet.
- Per-VIN clean schedule
- Soot and ash tracking
- Pressure-test on every clean
DMV - Washington DC, Maryland, Virginia
Heavy-Duty DPF Cleaning & Diesel Emissions Repair
Heavy-Duty DPF Cleaning & Diesel Emissions Repair
in Beltsville, MD
ATEL provides DPF cleaning, DEF system service, EGR and SCR repair, regen diagnostics and full aftertreatment work for commercial trucks, buses and motor coaches across Maryland, Washington DC, and Northern Virginia.
What We Do
Aftertreatment work that keeps trucks legal and earning.
Modern heavy-duty diesel emissions systems are complicated, expensive and increasingly the reason a truck is parked. DPF, DOC, SCR, DEF, EGR — each system has its own failure modes, and a forced regen that doesn't complete usually means the next call is to a flatbed. ATEL handles aftertreatment work as a daily-driver service, not a referral to someone else.
We do DPF cleaning on-site using a thermal cleaning process, run full diagnostics on regen failures, service DEF tanks, pumps and injectors, and repair or replace SCR catalysts, EGR coolers and valves where needed. Work that keeps your truck on the road and out of derate.
Fleet maintenance managers and owner-operators get aftertreatment service history tracked per VIN. We coordinate with warranty providers where applicable and document every regen, DPF clean and SCR service for compliance.
Start an Estimate-
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DPF Cleaning & Service
Thermal DPF cleaning on-site. Soot and ash removal, weight verification, pressure-test verification.
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Regen Diagnostics
Forced regen attempts, fault code isolation and root-cause repair on incomplete regen events.
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DEF System Service
DEF tank, pump and injector service. Crystallization cleanup, dosing accuracy verification.
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EGR & SCR Repair
EGR cooler replacement, valve service, SCR catalyst diagnostics and replacement where required.
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Aftertreatment Diagnostics
Full aftertreatment fault code scan, exhaust temperature analysis and per-component testing.
Why Us
Why Choose ATEL for DPF and Emissions Service?
Professional Aftertreatment Service for Commercial Trucks, Fleets and Buses
Our Experience
32+ years on heavy-duty diesel
Family-owned since 1994. Aftertreatment systems have been part of our daily work since they arrived on commercial diesel — we have seen most of the failure modes.
DPF Cleaning On-Site
Thermal DPF cleaning in-house
No outsourcing, no waiting on a vendor. DPF cleaned, weighed and pressure-tested before reinstall.
Diagnostic Capability
Heavy-duty aftertreatment scan tools
Manufacturer-level diagnostics on Cummins, Detroit, Volvo, Mack, PACCAR and International aftertreatment platforms.
Fleet Service
Aftertreatment tracked per VIN
DPF clean intervals, SCR service history and DEF system records tracked for every fleet unit.
Warranty Coordination
OEM and extended warranty work
We coordinate aftertreatment warranty claims — diagnostics documented, parts traceable, claims supported.
Downtime Focus
Same-day diagnostics on derate
Truck in derate is truck not earning. Fleet accounts get same-day diagnostics priority on aftertreatment faults.
Intake to Delivery
A documented aftertreatment process, start to finish.
Emissions work is diagnostic work. Here is how a DPF or aftertreatment job moves through our shop.
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01
Intake & Fault Scan
Fault codes pulled, regen history reviewed, baseline inspection. Initial estimate before tear-down.
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Aftertreatment Diagnostics
Pressure and temperature analysis, system isolation, root-cause identification.
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Repair Authorization
Written scope before work proceeds. Warranty providers notified where applicable.
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DPF Clean or Component Repair
DPF thermal cleaned in-house, or affected aftertreatment component repaired or replaced.
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Regen Verification
Forced regen run to completion, post-regen scan, exhaust temperature verification.
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QC & Delivery
Service history updated on file, walk-around with the customer, keys hand-off.
Fleet & Commercial
Fleet DPF & Emissions Service for Commercial Trucks & Buses.
Aftertreatment failures take fleet trucks off the road. ATEL provides scheduled DPF cleaning programs, derate response service, DOT compliance documentation and consolidated billing for commercial truck fleets throughout Maryland and the DC region.
Open a Fleet Account
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DERATE RESPONSE
Fleet accounts get same-day diagnostics on derate events. Truck back on the road before the next scheduled run where possible.
- Same-day diagnostics priority
- Forced regen attempts
- Component repair authorization
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DOT & COMPLIANCE DOCUMENTATION
Aftertreatment service records maintained for every fleet unit. Documentation supports DOT inspection and emissions compliance audits.
- Per-VIN service history
- DPF weight records
- Regen history on file
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Consolidated Billing
Net-30 terms on approved fleet accounts. Monthly statements organized by VIN or division, direct warranty billing where supported.
- Net-30 on approved credit
- VIN-level line items
- Warranty billing support
ATEL supports commercial fleets throughout Beltsville, Baltimore, Washington DC, and Northern Virginia with aftertreatment service and DPF cleaning programs.
Open a commercial account and the next time a truck derates, the workflow is already in place.
Frequently Asked Questions
Questions we hear from customers
A few quick answers. If yours isn't here, call us or use our contact form.
Can you clean a DPF on-site?
Yes. We perform thermal DPF cleaning in-house. DPF is removed, baked, ash-vacuumed, weighed and pressure-tested before reinstall. No outsourcing, no vendor wait time.
My truck is in derate — can you help?
Yes. Fleet accounts get same-day diagnostics priority on derate events. We pull fault codes, attempt forced regen, and isolate the failure quickly so repair can authorize fast.
Do you work on SCR and DEF systems?
Yes. DEF tank, pump and injector service including crystallization cleanup. SCR catalyst diagnostics and replacement where required. EGR cooler and valve service in the same building.
How often should a DPF be cleaned?
Depends on duty cycle, fuel quality and engine condition. Typical interval is 200,000–300,000 miles or annually, but fleet PM contracts include custom intervals tracked per VIN.
Can you handle aftertreatment warranty work?
Yes. We coordinate aftertreatment warranty claims with OEM and extended warranty providers — diagnostics documented, parts traceable, claims supported.
What engine platforms do you cover for emissions work?
All major heavy-duty diesel — Cummins, Detroit Diesel, Volvo, Mack, PACCAR (Kenworth/Peterbilt) and International. Manufacturer-level diagnostics on every platform.
Where are you located and what areas do you serve?
The shop is at 12120 Conway Rd, Beltsville, MD 20705 — minutes from I-95 and the Baltimore-Washington Parkway. Our primary service area is the DMV: Washington DC, Maryland and Virginia. Fleet pickup and delivery arrangements are negotiable on contract.
Ready to Start
Get your truck out of derate and back to work.
Same-day diagnostics on fleet derate events. DPF cleaning programs scheduled around your operations. Request a quote and we will get back to you within one business day.