
Mechanical Engineering, Title 24 and HERS Testing in Truckee, Lake Tahoe and Reno
National reach. Local impact.
Title 24, HERS, commissioning, and mechanical design across Truckee, Lake Tahoe, Reno, and in 8 states.
- PE-licensed in 8 states
- CalCERTS HERS Raters
- LEED Accredited
- 20+ years
What We Do
Six services, one engineering team
Title 24 / Energy Compliance
California Title 24 calculations, CF1R documentation, and compliance reports for new construction, remodels, and additions, residential and commercial.
HERS Rating & Testing
CalCERTS-certified HERS field verification (duct leakage, QII, IAQ) with CF2R/CF3R documentation to verify and pass energy measures.
Building Commissioning
New-building, existing-building, and retro-/re-commissioning (including LEED commissioning) to verify systems perform as designed.
Mechanical Engineering
Full mechanical, HVAC, and plumbing system design for residential and commercial buildings, with ACCA Manual J/D/S and underfloor ventilation.
Energy Audits
Whole-building energy audits and retrofit analysis that pinpoint where a building loses energy and the ROI of fixing it.
Solar Exemptions
Solar shade analysis and solar-exemption modeling to determine California solar requirements and the most cost-efficient path.

- 21+
- Years in Business
- 8
- States PE-licensed
- 3
- CalCERTS HERS Raters
Why Single-Source
The whole building, by one engineering team
When design, compliance, testing, and commissioning live with the same firm, problems get caught early, not at inspection.
One team, end to end
Design, energy compliance, HERS verification, and commissioning under one roof, coordinated by the same engineers.
Built for the mountains
Underfloor ventilation, radiant snow-melt, and high-desert solar: engineering tuned to how Sierra buildings actually perform.
Documentation that passes
Twenty-plus years revising and modeling certificates of compliance that pass: efficiently, the first time.
Licensed where you build
Professional mechanical engineers stamped across eight western states, with field service across the Tahoe corridor.
How It Works
A clear path from question to sign-off
Bender Engineering is for builders and homeowners alike.
- 01
Consult
Tell us the project, the stage it's at, and where it's being permitted. No charge to talk it through.
- 02
Scope & Quote
We define and send the engineering, compliance, and any other work involved in a clearly outlined proposal.
- 03
Engineer & Verify
We model, design, and verify along with your architectural and structural plans as we go.
- 04
Document & Deliver
You get the stamped documentation and compliance forms your inspector needs to close out the work.
Where We Work
Local in the Sierra, licensed across the West
Our on-site service runs through the Sierra Nevada region (Greater Lake Tahoe area). Engineering, Title 24, and commissioning documentation is delivered across all eight states we hold PE licenses.
Truckee · Tahoe City · Kings Beach · Carnelian Bay · Tahoe Vista · Crystal Bay · Incline Village · Soda Springs & more
See the full coverage map- Home States (CA & NV)
- PE-licensed State
- HQ
FAQ
Questions, answered
Plain answers for builders, architects, and homeowners alike.
Both. Most of our work is for builders, general contractors, and architects who need stamped mechanical design, Title 24 compliance, and commissioning. We also work directly with homeowners, especially for HERS testing and energy questions on custom homes.
Our field service covers the Tahoe–Truckee–Reno and Eastern Sierra corridor. Engineering, Title 24, and commissioning documentation is delivered across all eight states we hold PE licenses in: California, Nevada, Hawaii, Oregon, Idaho, Utah, Wyoming, and Colorado.
Every engagement is scoped and quoted to the project. There's no flat price list, because a CF1R revision and a full commissioning program are very different efforts. Tell us the project and stage and we'll give you a clear quote.
Yes. Bender Engineering is licensed, bonded, and insured, with professional mechanical engineers licensed in eight western states and CalCERTS-certified HERS Raters on staff. PE license numbers are available on request.
Yes, that single-source path is the point. We can handle mechanical and plumbing design, energy compliance, HERS verification, and commissioning under one roof, so the engineering stays coordinated from first calculation to final sign-off.
Start a Conversation
Tell us about your project
Whether you're a builder or a homeowner, there's a clear next step.
Or call (530) 582-5578