Keystone Enclosure Testing provides independent blower door and duct leakage tests for new residential construction in Bucks and Montgomery counties. Delaware County projects are available by confirmation. We work with builders, general contractors, HVAC contractors, and homeowners who need testing and clear documentation for their projects.
Local testing, with coverage based on your project address.
Our Pennsylvania service area covers Bucks and Montgomery counties. Delaware County projects are accepted by confirmation based on the project address and schedule. Submit the project address and requested tests through the booking form so Keystone can confirm availability and appointment details.
Keystone is a testing-only company. We provide independent measurements and clear documentation without selling corrective work.
Share the project information through our booking form so we can review the required tests, location and site readiness before confirming an appointment.
For multiple homes or recurring projects, include the individual addresses and expected readiness dates. This helps us plan testing around your inspection and closeout schedule.
Testing requirements and passing limits depend on the applicable code, approved project documents and local enforcing agency. Review our requirements page for Pennsylvania guidance and links to official sources.
Have a question about which test your project needs? Contact Keystone with the project details.
Send your project address and testing details. We'll confirm coverage, review the request and coordinate your appointment.
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