REScheck & COMcheck Sherborn MA - Quick Facts
Local energy code in Sherborn
- Sherborn has been an Opt-In (Specialized Code) community since January 1, 2024, layering electrification requirements on the Stretch Code; it sits in IECC Climate Zone 5A.
- Beyond the Stretch baseline, new mixed-fuel homes must be pre-wired for future electrification and add on-site solar where there is significant unshaded roof space.
- All-electric new homes must use heat pumps for space heating and hot water; fossil-fuel homes over 4,000 sq ft must reach net-zero (HERS 0), and new multifamily over 12,000 sq ft must meet Passive House.
REScheck & COMcheck in Sherborn
- REScheck documents the prescriptive residential path for Sherborn 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 Sherborn 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 136 Google reviews · (617) 501-6788
REScheck & COMcheck Sherborn MA
Need a REScheck or COMcheck in Sherborn? We produce permit-ready energy code compliance reports for homes and commercial buildings across Middlesex County, matched precisely to your plans so your project clears plan review the first time.
What we deliver
A stamped, signed compliance report matched to your plans and ready to upload with your Sherborn building permit application.
What Is a REScheck and What Is a COMcheck?
REScheck and COMcheck are DOE-developed programs that show a building meets the IECC energy code. Which one your Sherborn project needs depends on whether the work is residential or commercial — here is how they differ.
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.
What is a REScheck?
REScheck is the DOE’s residential compliance tool. It covers one- and two-family dwellings and low-rise multifamily (three stories or fewer), using a UA trade-off so a stronger wall or roof can make up for a weaker window while the overall envelope still meets the IECC.
REScheck Projects in Sherborn
REScheck is the simplest path for smaller residential projects in Sherborn 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
- Permit applications needing residential envelope documentation on the prescriptive or UA trade-off path
- Multifamily buildings of three stories or fewer
- Additions, alterations, or renovations to a one- or two-family home
- Window and insulation upgrades that must be documented for a building permit
When Do You Need a COMcheck in Sherborn?
COMcheck is required for commercial and larger projects in Sherborn. Reach for a COMcheck when your project involves:
- Tenant fit-outs and interior or exterior lighting alterations
- Commercial buildings — offices, retail, restaurants, warehouses, and mixed-use
- Envelope work on commercial structures requiring IECC or ASHRAE 90.1 compliance
- Warehouse, industrial, and light-manufacturing conditioned spaces
- High-rise residential buildings of four stories or more
What We Deliver for Sherborn Projects
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.
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 Sherborn.
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.
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 Sherborn and Middlesex County
Sherborn sits in Middlesex 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 Middlesex County, matched to the code edition Sherborn currently enforces.
Transparent Pricing for Sherborn 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 Sherborn. Send your plans for an exact quote.
Trusted by Sherborn 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 Sherborn?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Sherborn permit.
Email Energyconsultants01@gmail.com Call 617-501-6788HERS Ratings Across Sherborn and Nearby Communities
Home Energy Efficiency Consultants rates new homes, additions, and major renovations throughout Sherborn — including Sherborn Center, and South Sherborn. Every Sherborn project is filed with the Town of Sherborn Building Department, and we handle the energy model, blower door and duct leakage testing, and the compliance paperwork from start to finish.
We also serve the communities right around Sherborn, including Natick, Framingham, Holliston, Dover, and Medfield. Our Framingham office at 68 South St is the closest of our four Massachusetts locations — see our Framingham office or call (617) 501-6788 to get a Sherborn rating on the schedule.
Sherborn Specialized Energy Code — HERS Index Targets
Sherborn enforces the Massachusetts Specialized (Opt-In) Energy Code. The required HERS score depends on fuel type and project scope — a lower index is stricter.
| Project type | Mixed-fuel | Mixed-fuel + solar | All-electric | All-electric + solar |
|---|---|---|---|---|
| New construction | HERS 42 | 42 | 45 | 45 |
| New construction — embodied-carbon credit | 45 | 45 | 48 | 48 |
| Accessory dwelling unit (ADU) | 52 | 55 | 55 | 58 |
| Major alteration / renovation / change of use | 65 | 70 | 70 | 75 |
A HERS rating is triggered by new construction, additions over 1,000 sq ft (or more than 100% of the existing conditioned area), and Level 3 alterations over 1,000 sq ft affecting more than 50% of the home. New homes must also pass a blower-door test at 3.0 ACH50 and include electrification-ready wiring for heat pumps, EV charging, and solar. We model your Sherborn project up front so you know the exact target and the fastest path to hit it — call (617) 501-6788.
More Massachusetts Towns We Serve
Certified HERS ratings, blower door testing and energy code compliance across all 351 Massachusetts cities and towns.
