REScheck & COMcheck Mendon MA - Quick Facts
Local energy code in Mendon
- New construction and major renovations in Mendon follow the Massachusetts Stretch Energy Code. IECC Climate Zone 5A.
- Massachusetts has three energy-code levels - base (2021 IECC), Stretch, and Specialized (Opt-In) - and Mendon is on the Stretch Code.
REScheck & COMcheck in Mendon
- REScheck documents the prescriptive residential path for Mendon additions, alterations and renovations (from $300); new-construction performance projects use a full HERS energy model instead.
- Commercial projects use COMcheck for the prescriptive path (from $600); larger new commercial buildings need third-party performance certification under the Stretch Code.
- 24-48 hour turnaround - documentation ready to upload with your Mendon permit application.
What you can get back: 2026 Mass Save
- All-electric renovations and additions can earn Mass Save incentives up to $20,000 (Level 1) or $30,000 (Level 2) for a single-family home, verified by a RESNET-certified HERS rater.
RESNET-certified · 15,000+ ratings completed · 5.0 stars across 135 Google reviews · (617) 501-6788
REScheck & COMcheck Mendon MA
From small additions to commercial fit-outs in Mendon, we deliver the REScheck and COMcheck reports your Worcester County building department requires — accurate, signed, and turned around quickly.
What we deliver
A stamped, signed compliance report matched to your plans and ready to upload with your Mendon building permit application.
Understanding REScheck and COMcheck
REScheck and COMcheck are DOE-developed programs that show a building meets the IECC energy code. Which one your Mendon project needs depends on whether the work is residential or commercial — here is how they differ.
What is a REScheck?
REScheck is DOE software for residential compliance — detached one- and two-family homes and multifamily buildings three stories or fewer. It runs a UA (insulation and window) trade-off calculation against the IECC, letting extra performance in one assembly offset another so the whole envelope still passes.
What is a COMcheck?
For commercial and four-plus-story residential buildings, COMcheck is required. It documents envelope, lighting, and mechanical compliance against the IECC or ASHRAE Standard 90.1 and produces the certificates a commercial plan reviewer expects.
When Do You Need a REScheck in Mendon?
REScheck is the simplest path for smaller residential projects in Mendon that do not trigger a full performance-path energy rating. It is typically the right tool when your project is:
- New residential construction or an addition under 1,200 square feet that does not require a HERS rating
- Additions, alterations, or renovations to a one- or two-family home
- Detached accessory structures with conditioned space
- Projects where insulation and window trade-offs are enough to demonstrate compliance
- Multifamily buildings of three stories or fewer
COMcheck Projects in Mendon
COMcheck is required for commercial and larger projects in Mendon. Reach for a COMcheck when your project involves:
- Medical, dental, and professional office construction
- Restaurant build-outs and retail white-box improvements
- Warehouse, industrial, and light-manufacturing conditioned spaces
- Tenant fit-outs and interior or exterior lighting alterations
- New mechanical (HVAC) or service water heating systems in commercial spaces
What Your Mendon Compliance Report Includes
Plans matched to code
We enter your assemblies, fenestration, and (for commercial) lighting and mechanical details exactly as designed, so the report reflects what you are actually building in Mendon.
COMcheck report
The COMcheck Envelope, Lighting, and Mechanical Compliance Certificates plus the Plan Review Checklist — the full package a commercial plan reviewer expects for permit submission.
REScheck report
A signed REScheck compliance certificate matched to your plans, the inspection checklist, and the UA trade-off summary showing your insulation R-values and window U-factors meet the residential energy code.
Fast, permit-ready turnaround
We deliver documentation ready to upload with your building permit application, and we answer plan-review questions if the department asks for revisions.
Serving Mendon and Worcester County
Mendon sits in Worcester County, Massachusetts, in IECC climate zone 5A — the cold-climate zone that drives the insulation and air-sealing levels your REScheck or COMcheck must document. We prepare compliance reports for projects throughout Worcester County, matched to the code edition Mendon currently enforces.
Transparent Pricing for Mendon Compliance Reports
Transparent starting prices. Final cost depends on project size, number of assemblies, and scope.
- REScheck (residential): starting at $300
- COMcheck (commercial): starting at $600
- Revisions to match plan-review comments are handled promptly
REScheck reports start at $300 and COMcheck reports start at $600 for projects in Mendon. Send your plans for an exact quote.
Trusted by Mendon Builders & Owners
Google Review
“Best decision I made was hiring Home Energy Efficiency Consultants LLC. Their attention to detail and willingness to answer all my questions made the process stress-free.”
Need a REScheck or COMcheck in Mendon?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Mendon permit.
Email Energyconsultants01@gmail.com Call 617-501-6788HERS Ratings in Mendon, Massachusetts
Home Energy Efficiency Consultants provides Mendon with certified HERS ratings, blower door and duct leakage testing, and Massachusetts energy-code compliance for new construction, additions, and major renovations — with same-day preliminary reports.
We rate homes across the Commonwealth from our four offices. Reach the one nearest your Mendon project — Somerville, Framingham, Marlborough, or Everett — or call (617) 501-6788 to schedule a Mendon rating.
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