PA-Licensed · Free Estimates Available
Asbestos Abatement Contractor in Chester & Delaware County, PA
Licensed asbestos abatement in Chester, Delaware County, and the Philadelphia area. ACI-TECH, INC. handles PA DEP and PA L&I notifications, full containment, air clearance testing, and regulated disposal — everything required by Pennsylvania law.
Recent work
Work we've done — asbestos abatement
Scope of work
What does asbestos abatement cover?
- PA DEP NESHAP advance notification filing
- Full negative-pressure containment setup
- Wet removal methods throughout
- HEPA decontamination of all surfaces
- Independent air clearance testing
- Regulated waste manifesting and transport
- Project completion report for lenders and buyers
Our process
How does it work?
- Scope and notify File PA DEP NESHAP notification at least 10 working days before work starts — ACI-TECH handles this for you.
- Set up containment Plastic sheeting and HEPA exhaust fans seal and depressurize the work area before any material is touched.
- Abate Wet removal methods with full PPE throughout — dry removal is not acceptable under Pennsylvania law.
- Decontaminate HEPA-vacuum and wet-wipe every surface in the containment zone after material is out.
- Air clearance An independent industrial hygienist tests the space; occupancy is not permitted until fiber counts pass.
- Document Project completion report with all notifications filed, clearance results, and waste manifests included.
Decision guide
When is asbestos abatement required?
Friable asbestos-containing material — material that can be crumbled by hand pressure — releases fibers without disturbance. Crumbling pipe insulation, deteriorating ceiling texture, or damaged floor tiles with visible fiber release require abatement regardless of renovation plans.
Any ACM that will be disturbed by planned renovation work must be abated before work begins. Pennsylvania law requires this — PA L&I certification and PA DEP NESHAP notification are mandatory for contractor work above threshold quantities.
Buyers, lenders, and property managers increasingly require abatement of known ACMs before closing, particularly in commercial transactions. A formal abatement completion report with air clearance documentation provides the evidence needed.
Regulatory requirements
Pennsylvania notification requirements
Pennsylvania requires advance notification to two separate agencies before most contractor abatement work:
ACI-TECH files all required notifications to PA DEP and PA L&I as standard project management — you don't have to navigate the regulatory requirements yourself.
Cost guidance
What asbestos abatement costs
Abatement cost depends on material type, quantity, location, and accessibility. Pipe insulation in a tight crawl space costs more per linear foot than open-area floor tile. A full boiler and distribution system abatement in a pre-1940 Chester row home is a different scope from a single room of floor tiles. ACI-TECH provides free written on-site estimates — no work begins without a written price. Written estimates are suitable for real estate negotiations and insurance claims.
Get a free written estimate →From ACI-TECH's field work
How We Set Up Containment in a Residential Abatement
The standard that gets violated most often in lower-quality abatement work is containment integrity — specifically, the transition between the work zone and the occupied part of the building. A proper decontamination airlock is a double-entry zone: you pass through the outer barrier into the decon space, remove contaminated PPE and HEPA-vacuum the suit before the outer barrier closes, then exit through the inner barrier into the clean area. This matters because the highest fiber release during an abatement job does not happen during the removal itself — it happens when workers move in and out of the work zone without proper decon procedure.
In a residential project, the containment zone is typically the room or floor being abated. We seal floor-to-ceiling with poly sheeting, tape every penetration (door frames, electrical boxes, HVAC registers), and run a HEPA negative-air unit to maintain negative pressure throughout the job. The air inside the work zone is exhausted to the outside — not recirculated through the home's HVAC system.
After removal, the decontamination sequence matters as much as the removal itself. HEPA vacuum every surface in the work zone, wet-wipe all surfaces, re-inspect, then request the air clearance test. We do not rush clearance. The independent hygienist's air samples are what protect the homeowner — if they do not pass, we do not release the space. That is not an option we negotiate.
ACI-TECH holds PA L&I License C0238A (expires October 2027) and Philadelphia Asbestos Abatement License ACL-387 (expires July 2027). Jack Helms, President, has held continuous asbestos contractor certification since the company's founding in 1995.
Asbestos abatement is the professional removal of asbestos-containing materials (ACMs) from a building using containment, wet methods, HEPA filtration, and regulated disposal — the process required by Pennsylvania law whenever asbestos materials must be removed. ACI-TECH, INC. is a PA-certified asbestos abatement contractor serving Chester, Delaware County, Philadelphia, and the surrounding region.
What Professional Abatement Involves
A licensed abatement project involves several components that cannot be safely replicated by an untrained homeowner or general contractor:
Negative-pressure containment. Before removal begins, the work area is sealed with plastic sheeting and HEPA-filtered exhaust fans create negative air pressure — so that contaminated air moves out of the work zone rather than into adjacent living spaces.
Wet methods. Asbestos-containing material is kept wet during removal to suppress fiber release. Dry removal is not acceptable practice.
Proper respiratory protection. Abatement workers wear full-face or half-face respirators with P100 filters appropriate to the fiber concentrations generated by the specific material being removed.
HEPA decontamination. After removal, all surfaces in the work zone are HEPA-vacuumed and wet-wiped. Standard shop vacuums and household vacuums recirculate asbestos fibers — only HEPA-filtered equipment is adequate.
Air clearance testing. An independent industrial hygienist collects air samples after cleanup is complete. The space is not released for occupancy until air clearance passes — fiber counts must be below the clearance threshold. This is not optional.
Regulated waste disposal. Asbestos-containing waste must be double-bagged in labeled, sealed bags and disposed of at a PA DEP-permitted facility. It cannot go in regular trash or a construction dumpster. ACI-TECH handles all waste manifesting and disposal as part of every project.
Where We Work
- Chester, PA — Sun Shipbuilding legacy, pre-1940 row homes, steam pipe and floor tile abatement
- Delaware County, PA — 49 municipalities, pre-war boroughs and postwar suburbs
- Collingdale, PA — 1890s–1950s row homes with near-universal steam pipe insulation
- Darby, PA — pre-war row homes, boiler conversion systems, and high-occupancy rentals
- Folcroft, PA — postwar floor tile, acoustic ceiling tile, and duct insulation abatement
- Lansdowne, PA — Victorian and Craftsman twins with intact original hazardous materials
- Ridley Park, PA — Victorian, interwar, and postwar multi-era abatement
- Sharon Hill, PA — 1935–1955 peak-era housing stock; steam pipe and floor tile abatement
- Upper Darby, PA — highest lead poisoning rate in the county; ordinance-driven asbestos and lead work
- Wayne, PA — Chesterbrook borderline-era materials and pre-war Main Line homes
- Philadelphia, PA — Philadelphia L&I permit process; abatement reports for permit applications
- Montgomery County, PA — Main Line pre-war homes and industrial borough row houses
- Chester County, PA — Victorian borough homes and rural farmhouse conversions
Where we work
Areas near you
Common questions
Asbestos Abatement — Frequently Asked Questions
What certifications must an asbestos abatement contractor hold in Pennsylvania?
Under PA L&I Acts 194 and 161, every contractor, supervisor, and worker performing asbestos abatement for hire in Pennsylvania must hold a current state certification specific to their role. Certifications must be renewed annually. A PA-certified renovation firm must also comply with the EPA RRP Rule for lead paint when the same project involves pre-1978 painted surfaces. Always ask to see the PA L&I certificate before any work begins.
What is negative-pressure containment and why does abatement require it?
Negative-pressure containment seals the work area with plastic sheeting and uses HEPA-filtered exhaust fans to draw air out of the work zone rather than letting it flow into the rest of the building. This prevents asbestos fibers from migrating to adjacent rooms during removal. Without it, disturbing asbestos-containing material contaminate the entire structure. It is a required component of professional abatement under Pennsylvania regulations.
Can a general contractor do asbestos abatement in Pennsylvania?
No. A general contractor without PA L&I asbestos abatement certification cannot legally perform asbestos removal. The work must be performed by certified abatement contractors, supervisors, and workers. Hiring an uncertified contractor exposes the property owner to liability and leaves the health hazard unresolved — fiber release from improperly handled material is the primary risk. Verify certification before any abatement work begins.
How much does asbestos abatement cost in Delaware County, PA?
Abatement cost varies by material type, quantity, location, and access. Pipe insulation in a tight crawl space costs more per linear foot than open-area floor tile. A single-room floor tile removal costs less than a full basement boiler and distribution system. Projects above federal thresholds add PA DEP NESHAP notification. ACI-TECH provides free written on-site estimates — no work begins without a written price.
Does the air clearance test happen automatically or do I need to arrange it?
ACI-TECH coordinates the independent air clearance test as a standard part of every abatement project. An independent industrial hygienist — not ACI-TECH — collects the samples after cleanup to ensure the result is objective. The space is not released for occupancy until fiber counts pass the clearance threshold. The clearance results are included in your project completion report.
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PA DEP licensed · EPA RRP certified · Serving Chester, Delaware County & Philadelphia