How to Start a Janitorial Business and Bid on Commercial Contracts
Contents:
- Brief Intro
- Preparation
- Step 1: Register Your Business and Secure Insurance
- Step 2: Determine Your Service Offerings
- Step 3: Develop a Professional Bid Process
- Step 4: Target Appropriately Sized Contracts
- What the Pros Know
- Sustainability Angle
- Pro Tips
- FAQ
- How much should I charge for commercial janitorial contracts?
- What insurance do I need before bidding on contracts?
- How long does it typically take to win a first commercial contract?
- Quick Cost Breakdown
- Common Mistakes to Avoid
Commercial building maintenance has existed as a formal industry since the rise of large office buildings in the early 20th century, when property owners first began contracting out cleaning services rather than employing in-house staff.
Brief Intro
Starting a janitorial business focused specifically on commercial contracts offers more stable, recurring revenue than residential cleaning, though winning that first bid requires understanding how commercial procurement actually works.
Preparation
Research your target market thoroughly, identifying office buildings, medical facilities, and retail spaces in your service area before investing in equipment or insurance you might not immediately need.
Step 1: Register Your Business and Secure Insurance
Form an LLC and obtain general liability insurance, typically $500 to $1,500 annually, along with bonding, since most commercial properties require proof of both before considering any contract bid.
Step 2: Determine Your Service Offerings
Decide whether you’ll offer basic nightly cleaning, deep cleaning services, or specialized options like floor stripping and waxing, since service scope directly affects pricing and equipment investment needed.
Step 3: Develop a Professional Bid Process
Create a standardized bid template covering scope of work, frequency, and clear line-item pricing, since vague or inconsistent bids make property managers hesitant to award contracts.
Step 4: Target Appropriately Sized Contracts
Focus initially on small to mid-size office buildings and medical offices, avoiding large corporate accounts dominated by national janitorial companies with resources new businesses simply can’t match yet.
What the Pros Know
Established commercial cleaning business owners recommend attending the property walkthrough with specific questions about problem areas, since this demonstrates genuine attention that generic bids submitted sight-unseen simply can’t convey.
Sustainability Angle

Offering green cleaning products and practices increasingly serves as a competitive differentiator, particularly for medical offices and businesses with employees who specifically request lower-toxicity cleaning solutions.
Pro Tips
Offer a discounted introductory period on your first few contracts, letting property managers experience your quality and reliability before committing to full-rate, longer-term agreements.
FAQ
How much should I charge for commercial janitorial contracts?
Pricing typically runs $0.08 to $0.20 per square foot monthly depending on service frequency and building type, with medical facilities commanding premium rates due to stricter requirements.
What insurance do I need before bidding on contracts?
General liability insurance and bonding are typically required minimums, with some larger contracts also requiring workers’ compensation coverage if you employ staff.
How long does it typically take to win a first commercial contract?
Most new janitorial businesses secure their first contract within 30 to 90 days of active, consistent bidding and outreach to local property managers.
Quick Cost Breakdown
Initial insurance and bonding: $600 to $1,800. Basic cleaning equipment and supplies: $2,500 to $6,000. Marketing and bid materials: $200 to $600. Total realistic startup budget: $3,500 to $8,500.
Common Mistakes to Avoid
Underbidding a contract just to win it initially often backfires, since unsustainable pricing leads to corner-cutting or eventual contract loss once the true cost of quality service becomes apparent.