Who we serve
Surety bonds for HVAC contractors
Mechanical scopes on schools, healthcare, and government buildings are bonded routinely, and long equipment lead times mean the bond is needed earlier than in other trades.
Requesting a bond does not affect your credit.
When bonds are required
When HVAC contractors need bonds
Mechanical scopes on public buildings, healthcare, and education work are bonded routinely, and equipment procurement schedules mean the bond is often required earlier than on other trades.
Payment and performance bonds on public mechanical scopes, required by GCs and owners.
Design-build and energy-performance work often carries bond requirements even on private jobs.
Procurement schedules force bonding at contract signing, well before mobilization.
Compare the three bond types on our surety bonds overview, or see what a bond costs in our bond cost guide.
Underwriting
What underwriting looks at
CapStream underwrites on contracting experience, company ownership, financials, and largest jobs completed, and pairs the bond with a project financing commitment that strengthens the balance sheet.
Experience and completed work
Your contracting history and the largest jobs you have finished carry more weight than a record of prior bonded work.
Ownership and company details
Who owns the company, how long it has operated, and how the business is structured.
Financials
Working capital, net worth, and the trend in your financial statements set the size of your bonding line.
A financing commitment behind the bond
Because the bond is paired with project funding, the cash that lands on the job strengthens the balance sheet the surety underwrites.
Cash flow
The cash flow squeeze
Chillers, air handlers, and rooftop units demand large deposits at release with lead times measured in months. You carry equipment cost, warehousing, and early payroll long before the owner funds a draw.
That is the gap CapStream closes with mobilization funding up to 20% of the contract price.

HVAC contractor FAQ
Questions from the field
Equipment release is usually tied contractually to your bonds being executed. Because chillers and air handlers have to be ordered months ahead of installation, the owner or GC wants the bond on file before procurement begins.
Sometimes, particularly on public facilities where multi-year service agreements are treated like any other public contract. The requirement is written into the contract documents, so check the bonding section before you price the work.
Yes. Mobilization funding arrives before the project starts and can be used for upfront project costs including equipment deposits, material orders, early payroll, and bond premiums.
Bonds up to $10 million, no minimum
Requesting a bond or loan does not affect your credit.
