How to Bid on Government Duct Cleaning Contracts: SAM.gov Registration, RFP Response, and Winning Strategies (2026)

The Government Is the Largest Buyer of Everything — Including Duct Cleaning

The US federal government alone manages over 275,000 buildings. Every military base, VA hospital, federal courthouse, and GSA-managed office building has HVAC systems that require regular duct cleaning. State and local governments manage thousands more: public schools, universities, municipal buildings, transit facilities. Government contracts are stable, pay on time, and often include multi-year renewal options. But the procurement process is designed to filter out contractors who cannot navigate the bureaucracy. This guide walks through the process from registration to winning your first government purchase order.

Step 1: Get Registered (Before You Find the Contract)

Government agencies cannot pay you if you are not in their system. Complete these registrations before you look for your first contract:

• SAM.gov (System for Award Management): Required for ALL federal contracts. Free registration. You will need: DUNS number (free from Dun and Bradstreet), tax ID (EIN), bank account information for EFT payments. Registration takes 10-14 business days. Start now — you cannot bid on federal contracts without an active SAM registration.
• NAICS Codes: During SAM registration, select relevant NAICS codes. For duct cleaning: 561790 (Other Services to Buildings and Dwellings), 238220 (Plumbing, Heating, and Air-Conditioning Contractors), 561210 (Facilities Support Services). These codes determine which set-aside programs you qualify for.
• Small Business Certification (optional but valuable): If you qualify as a small business under SBA size standards (typically under $19M annual revenue for NAICS 561790), self-certify during SAM registration. Federal agencies have small business contracting goals and actively seek qualified small business vendors.
• State/local registration: Each state has its own procurement portal. Register with your state procurement office and any major cities/counties in your service area.

Step 2: Find the Right Opportunities

• SAM.gov Contract Opportunities: Search for "duct cleaning," "HVAC cleaning," "kitchen exhaust cleaning," "exhaust hood cleaning." Filter by NAICS code, set-aside status, and location.
• GSA eBuy: GSA Schedule contractors can bid on RFQs through eBuy. Getting a GSA Schedule (SIN 811 002 for Facilities Maintenance) is a separate process but opens access to pre-vetted government buyers.
• State/local procurement portals: Each has its own bid notification system. Set up automated alerts for relevant keywords.
• Subcontracting: Large government prime contractors (facilities management companies like JLL, CBRE, Cushman and Wakefield) need subcontractors for duct cleaning. Register as a subcontractor with these firms for government facilities they manage.

Step 3: Write a Winning Government RFP Response

Government RFPs are scored on a point system. Technical approach typically counts for 40-50%, price for 30-40%, past performance for 20-30%. Key elements:

• Technical approach (most points): Describe your methodology step by step. Reference industry standards (NADCA ACR, NFPA 96). Specify equipment (Gaolijie CR360 with 1080P PTZ camera, K8 HEPA H13 filtration). Include your safety program, quality control process, and documentation deliverables.
• Past performance: List 3-5 contracts of similar scope and size completed in the last 3 years. Include contract value, agency/client name, point of contact (get permission first). If you have no government past performance, list commercial contracts and explain transferability.
• Price: Government pricing must be fully burdened (include all labor, equipment, materials, overhead, profit). Per-linear-foot pricing is standard. Include separate line items for mobilization, documentation, and any travel/per diem if the facility is outside your normal service area.
• Small business participation (if applicable): If you are a small business, emphasize it. If the contract requires small business subcontracting, describe your plan.

Step 4: Pricing Government Contracts Correctly

• Prevailing wage requirements (Davis-Bacon Act): Federal construction and service contracts over $2,000 require paying prevailing wages. Check the Wage Determination for the contract location — prevailing wage is typically 20-40% higher than market rates. Your bid must account for this.
• Bonding requirements: Contracts over $150,000 typically require performance and payment bonds. Bid bonds (5-20% of bid) may be required with proposal submission. Establish a bonding relationship with a surety company before you need it.
• Insurance requirements: Government contracts typically require higher coverage limits ($2M-$5M). Factor this into your overhead rate.
• Profit margin on government work: Government contracts typically yield 8-15% net profit versus 20-40% on commercial work. The trade-off: guaranteed payment, multi-year terms, and stable volume.

Set-Aside Programs That Help Small Businesses Win

• Small Business Set-Aside: Contracts under $150,000 are automatically set aside for small businesses when two or more small businesses are expected to bid.
• WOSB/EDWOSB (Women-Owned Small Business): 5% of federal contracting dollars are targeted to WOSBs.
• SDVOSB (Service-Disabled Veteran-Owned Small Business): 3% target. VA hospitals are a major source of duct cleaning contracts.
• HUBZone (Historically Underutilized Business Zone): 3% target for businesses in designated zones.
• 8(a) Business Development: Socially and economically disadvantaged businesses can receive sole-source contracts up to $4.5M.

Equip for government contracts with Gaolijie — NADCA-compliant, HD-documented, factory-direct duct cleaning systems.