JH Construction

Licensed & Certified · Northern California

Environmental Hazards.Remediated Right.

Mold · Asbestos · Lead · Biohazard · Trauma Scene

JH Construction provides turnkey environmental remediation across Northern California, mold, asbestos, lead, and biohazard services managed under Cal/OSHA, EPA, and AQMD compliance with full clearance documentation. CSLB#929897.

  • Cal/OSHACompliant
  • EPACertified
  • AQMDPermitted
  • CSLB#929897

Environmental Services

Hazard Remediation
Done Right

Every environmental hazard operates under its own regulatory authority. JH Construction integrates Industrial Hygienist protocols and licensed environmental contractors to manage mold, asbestos, lead, and biohazard remediation with full compliance documentation.

Service 01

Mold Remediation

Identify and correct the moisture source. Establish containment and negative air. Remove contaminated materials under Industrial Hygienist protocols. Verify clearance with post-remediation testing. Restore to pre-loss condition. That is the correct sequence, and every step must be documented.

Mold remediation performed without moisture source correction will fail. Remediation performed without containment spreads spores. JH Construction manages the full sequence: moisture source correction, HEPA containment, negative air pressure, abatement, and third-party clearance testing.

  • IICRC S520
  • Cal/OSHA
  • IH Protocols
  • Clearance Testing
  • Xactimate Documentation
Service 02

Asbestos Abatement

Asbestos-containing materials in older structures must be addressed under NESHAP and AQMD regulations before any demolition or restoration work disturbs them. JH manages evaluation, containment protocols, licensed abatement execution, and regulatory waste disposal with full AQMD notification and clearance air monitoring.

Disturbing asbestos without proper abatement creates personal liability for the property owner, contractor, and property manager, regardless of whether the disturbance was intentional. Pre-renovation surveys are not optional; they are legally required under the EPA Renovation, Repair and Painting (RRP) Rule.

  • NESHAP
  • AQMD Permitted
  • EPA RRP Rule
  • Air Monitoring
  • Regulated Disposal
Service 03

Lead Abatement

Lead-based paint disturbed during fire, water, or renovation work creates occupant and worker health risk and triggers RRP Rule requirements. JH coordinates lead assessment, containment, abatement execution by certified lead contractors, waste disposal, and clearance testing, with full documentation for carriers, asset managers, and regulatory authorities.

Properties built before 1978 are presumed to contain lead-based paint until tested. Sanding, cutting, or demolishing surfaces in these structures without RRP-compliant containment and work practices exposes property owners and contractors to EPA enforcement action and civil liability.

  • EPA RRP Rule
  • Cal/OSHA
  • Lead Certified Contractors
  • Clearance Testing
  • Regulated Disposal
Service 04

Trauma Scene & Biohazard Cleanup

Unattended deaths, biohazard exposure, sewage contamination, hoarding conditions, and accident scenes require immediate, discreet, and fully compliant remediation. JH secures the area, removes contaminated materials under Cal/OSHA bloodborne pathogen protocols, decontaminates all affected surfaces, and coordinates with property management on occupant communication and documentation.

Biohazard remediation requires certified personal protective equipment, regulated waste disposal, and documentation of decontamination standards achieved. This is not janitorial work, it is regulated remediation with insurance and legal implications that require a licensed, experienced contractor.

  • Cal/OSHA Bloodborne
  • Regulated Waste Disposal
  • Discrete Response
  • Insurance Documentation
  • 24/7 Response

The Science Behind the Work

Every Hazard Has Its Own
Regulatory Authority

Environmental remediation is not cleanup, it is a regulated science governed by federal agencies, state regulators, and local air quality authorities. Each hazard type operates under its own set of standards, permitting requirements, air monitoring thresholds, and disposal protocols. Getting this wrong creates liability that outlasts the project by years.

JH Construction integrates Industrial Hygienist protocols into every environmental recovery, because the science determines the scope, the sequencing determines compliance, and the documentation determines whether a carrier pays and a regulatory authority clears the site. This is not discretionary. It is the baseline.

Federal

U.S. Environmental Protection Agency (EPA)

Governs NESHAP asbestos standards, RRP Rule for lead, Superfund remediation, and hazardous waste disposal under RCRA. Non-compliance triggers stop-work orders and significant civil penalties.

State

Cal/OSHA · California Division of Occupational Safety

Enforces worker protection during asbestos and lead work including permitting, PPE requirements, medical surveillance, and air monitoring. All remediation crews operate under Cal/OSHA compliance protocols.

Regional

Air Quality Management Districts (AQMD / BAAQMD / SJVAPCD)

Require demolition and renovation notification for asbestos-containing materials and govern ambient air monitoring during abatement. Notification must be submitted and approved before work begins.

Assessment & Clearance

Industrial Hygienist (IH) Protocols

All environmental remediation scopes are guided by IH assessment findings. Post-remediation clearance testing by a qualified IH is the only defensible documentation that the hazard has been fully resolved.

Immediate Action Guide

What To Do
And What Not To Do

The actions taken, and not taken, in the first hours after a confirmed or suspected environmental hazard are the difference between a manageable remediation project and a regulatory compliance event with stop-work orders, fines, and tenant health liability.

Do These Immediately

Protect people, property & compliance

  • Stop all work immediately if asbestos-containing materials, suspect lead paint, or significant mold growth is discovered during renovation or restoration work.
  • Call JH Construction at (888) 609-5681. Environmental conditions require immediate assessment to determine scope, regulatory notification requirements, and proper containment protocols.
  • Restrict access to the affected area. Post visual barriers and prevent tenant, maintenance, or construction personnel from entering until the hazard has been assessed.
  • Document what you observed, photos, location, approximate material type, and what activity disturbed it. This becomes part of the regulatory notification record.
  • For mold: address the moisture source first. Remediating mold without correcting the water intrusion that feeds it guarantees recurrence. Moisture control precedes remediation.
  • Notify your insurance carrier after assessment is underway and scope is established. Premature notification without data creates adjuster-driven scope pressure before you have defensible numbers.
  • Require clearance documentation before allowing reconstruction or reoccupancy. A verbal clearance from a remediation crew is not a regulatory clearance. IH sign-off is required.

Don't Do These

Mistakes that create liability

  • Do not disturb suspect materials without testing. In structures built before 1980, drywall, flooring, insulation, roof materials, and pipe insulation may contain asbestos or lead.
  • Do not paint over mold. Surface treatment does not eliminate a mold colony, it conceals it temporarily. Hidden mold continues to grow and releases spores into occupied spaces.
  • Do not run HVAC through a mold-affected area. The air handling system becomes a distribution network for mold spores, spreading contamination from one unit to many.
  • Do not allow unprotected workers into a confirmed hazard area. Once a material tests positive for asbestos or lead, all work triggers Cal/OSHA PPE, training, and medical surveillance requirements.
  • Do not dispose of regulated waste in regular trash. Asbestos-containing debris and lead-contaminated materials are regulated waste under DTSC and must be manifested and transported to permitted disposal facilities.
  • Do not skip the post-remediation clearance test. Clearance testing by a qualified Industrial Hygienist is the only defensible documentation that the hazard has been fully resolved.
  • Do not allow tenants back into remediated spaces without IH clearance. Reoccupancy before clearance is documented creates direct landlord liability for any subsequent health claims.

Frequently Asked Questions

Environmental Remediation FAQ

Questions our teams answer on-site at every job. If yours isn't here, call us directly. Environmental questions deserve straight answers.

Mold Remediation

How do I know if I have a mold problem that requires professional remediation?

Visible mold growth larger than 10 square feet is the EPA's threshold for professional remediation. Below that, the focus is on the moisture source, if you can't control the water, you can't control the mold. Common indicators beyond visible growth: persistent musty odor with no visible source, tenant health complaints after a water event, and building material discoloration following unresolved moisture intrusion. Any confirmed water event not fully dried within 48–72 hours should be assessed for secondary mold growth.

Can mold be painted over or treated with bleach instead of remediated?

No, and this approach creates serious liability. Paint conceals active mold colonies but does not kill them. Bleach kills surface mold on non-porous materials but does not penetrate into drywall, wood framing, or insulation. The result is temporary surface appearance improvement with active mold continuing to grow behind the surface, releasing spores into occupied spaces, and creating an undisclosed health condition at the property. Proper remediation requires containment, negative air pressure, material removal, and IH clearance testing.

Does my property insurance cover mold remediation?

It depends on cause and policy language. Mold that resulted directly from a covered water loss, burst pipe, appliance overflow, is typically covered as part of the water loss claim. Mold from long-term moisture intrusion, roof leaks, or poor ventilation is frequently excluded. JH Construction documents mold remediation with IH assessment reports, air monitoring data, and Xactimate scopes that provide carriers the defensible evidence required to support coverage determinations.

Asbestos & Lead

How do I know if my building contains asbestos-containing materials?

Visual inspection cannot confirm asbestos, only laboratory analysis of bulk samples can. Any building constructed or renovated before 1980 should be assumed to contain asbestos-containing materials until testing confirms otherwise. Materials commonly found to contain asbestos include floor tiles, ceiling tiles, pipe insulation, roofing materials, drywall joint compound, and textured paints. JH Construction coordinates bulk sampling and lab analysis through licensed asbestos consultants across Northern California.

What happens if asbestos is discovered mid-project?

Work in the affected area must stop immediately. The area is isolated and access restricted. Samples are collected and submitted for expedited lab analysis to confirm ACM status. If confirmed, AQMD notification is filed, containment is established, and licensed asbestos abatement is conducted before any other work resumes. JH Construction manages this process, including regulatory notification, abatement execution, waste disposal, and air clearance monitoring, so the overall project timeline is impacted as minimally as possible.

What is the RRP Rule and does it apply to my property?

The EPA's Renovation, Repair, and Painting (RRP) Rule applies to housing and child-occupied facilities built before 1978 where renovation, repair, or painting work disturbs lead-based paint. It requires the work to be performed by an EPA-certified renovator using certified work practices, containment, and waste disposal procedures. Non-compliance exposes contractors and property owners to EPA fines up to $37,500 per violation per day. JH Construction coordinates lead-certified contractors for all applicable work in Northern California.

Biohazard & Insurance

What qualifies as a biohazard cleanup situation?

Biohazard cleanup applies to any situation involving blood, bodily fluids, tissue, or other potentially infectious materials, including unattended deaths, trauma scenes, homicides, suicides, accidents, sewage backups, and hoarding conditions with biologically hazardous materials. JH Construction responds 24/7 and prioritizes same-day response for trauma and biohazard situations across Northern California under Cal/OSHA bloodborne pathogen protocols. CSLB#929897.

Is environmental remediation covered by commercial property insurance?

Environmental remediation tied to a covered peril, fire, water, or a sudden accidental release, is typically covered under commercial property policies. Gradual contamination, pre-existing conditions, and pollution exclusions create gaps in standard coverage. JH Construction builds environmental scopes with IH assessment reports, air monitoring data, lab results, and waste manifests that provide carriers the documentation required to approve coverage.

What does turnkey environmental management mean in practice?

It means JH Construction manages the entire environmental recovery under one contract and one point of contact, from initial IH assessment through clearance and into reconstruction. You don't coordinate between a separate testing consultant, abatement contractor, and general contractor. JH handles assessment, regulatory notifications, abatement execution, regulated waste disposal, clearance testing, and full reconstruction. CSLB#929897.

Environmental hazard on-site? Every call answered live: 24/7.

(888) 609-5681 · 24/7

Environmental Remediation Service Areas

Northern California Coverage

Three regional offices: Bay Area, Central Valley, and Sacramento, positioned for fast response to environmental hazards across Northern California's commercial and multifamily corridors.

Region 01

Central Valley

Tracy · Stockton · Manteca · Lathrop · Lodi · Modesto · Turlock · Ceres · Ripon · Oakdale

Region 02

Bay Area

San Francisco · Oakland · San Jose · Livermore · Pleasanton · Fremont · Hayward · Concord · Walnut Creek · Richmond · Berkeley

Region 03

Sacramento

Sacramento · El Dorado Hills · Roseville · Folsom · Elk Grove · Rancho Cordova · Citrus Heights · Auburn · Rocklin · Lincoln

Mold? Asbestos? Lead? Biohazard? Call right now.

Environmental Hazards
Require Immediate Response

Mold · Asbestos · Lead · Biohazard · Trauma Scene · CSLB#929897