REScheck & COMcheck Carver MA - Quick Facts
Local energy code in Carver
- New construction and major renovations in Carver 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 Carver is on the Stretch Code.
REScheck & COMcheck in Carver
- REScheck documents the prescriptive residential path for Carver 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 Carver 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.
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REScheck & COMcheck Carver MA
Need a REScheck or COMcheck in Carver? We produce permit-ready energy code compliance reports for homes and commercial buildings across Plymouth County, matched precisely to your plans so your project clears plan review the first time.
What we deliver
A signed compliance report matched to your plans and ready to upload with your Carver building permit application.
Understanding REScheck and COMcheck
These are the two standard software tools plan reviewers accept for energy code compliance. Developed by the DOE, they let a Plymouth County project demonstrate that its envelope (and, for commercial, lighting and mechanical) meets the IECC.
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?
COMcheck handles commercial work and high-rise residential of four stories or more. The DOE tool evaluates envelope, lighting (interior and exterior), and mechanical systems against either the IECC or ASHRAE 90.1, with trade-offs allowed across components.
When Do You Need a REScheck in Carver?
REScheck is the simplest path for smaller residential projects in Carver that do not need a HERS rating. It is typically the right tool for:
- Residential additions of 1,000 sq ft or less that are not more than 100% of the existing home
- Basement and attic conversions that do not change the footprint or roofline
- Renovations and alterations to existing homes that need envelope documentation
- Detached accessory structures with conditioned space, where Carver's building department accepts REScheck
- New homes only in base-code towns; Stretch and Specialized Code towns require a HERS rating or Passive House for new homes
When Do You Need a COMcheck in Carver?
COMcheck is required for commercial and larger projects in Carver. Reach for a COMcheck when your project involves:
- Restaurant build-outs and retail white-box improvements
- Warehouse, industrial, and light-manufacturing conditioned spaces
- New mechanical (HVAC) or service water heating systems in commercial spaces
- Medical, dental, and professional office construction
- High-rise residential buildings of four stories or more
What Your Carver Compliance Report Includes
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.
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.
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 Carver.
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.
Serving Carver and Plymouth County
Carver sits in Plymouth 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 Plymouth County, matched to the code edition Carver currently enforces.
REScheck & COMcheck Pricing in Carver
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 Carver. Send your plans for an exact quote.
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Which Energy Code Report Does a Carver Project Need?
Carver is not one of the 60 Massachusetts communities on the Specialized Code, and the state's adoption list shows Carver on the Massachusetts Stretch Code (225 CMR 22.00 and 23.00) since July 1, 2019, so projects here follow the Stretch Code. We confirm Carver's current code status against the state list before we prepare any report.
| Your Carver project | What the energy code paperwork usually is |
|---|---|
| New single-family home or low-rise residential building | In Stretch Code towns, a HERS rating (maximum HERS 42 mixed-fuel, 45 all-electric) or Passive House. REScheck is not accepted for new homes under the Stretch Code. |
| Residential addition of 1,000 sq ft or less (and not over 100% of the existing home) | REScheck (REScheck-Web, 2023 Massachusetts Stretch Code) or the prescriptive tables |
| Residential addition over 1,000 sq ft or over 100% of the existing home | A HERS rating of the whole house (HERS 65 or lower mixed-fuel, 70 or lower all-electric) |
| Basement or attic conversion with no change to footprint or roofline | No HERS rating required; REScheck or prescriptive documentation |
| Residential renovation or alteration | Prescriptive alteration rules; REScheck can document the envelope. Large "extensive" alterations over 1,000 sq ft may need a HERS rating. |
| New commercial building up to 20,000 sq ft | COMcheck: Envelope, Lighting and Mechanical certificates plus the Plan Review Inspection Checklist |
| New commercial building over 20,000 sq ft | COMcheck Lighting and Mechanical, with the envelope shown by backstop and thermal-bridge calculations, on a performance path (Targeted Performance/TEDI or ASHRAE 90.1 Appendix G) or Passive House |
| Commercial addition, alteration, or lighting/HVAC change | COMcheck for the altered systems |
| Multifamily building over 12,000 sq ft | Passive House or a HERS/performance path |
Based on 225 CMR 22.00 and 23.00 (Massachusetts energy code, 2025 edition). Building departments make the final call, so we confirm the path for your project before we start. Carver is in Plymouth County, served from our Framingham (68 South St) office.
How We Prepare Your Carver REScheck or COMcheck
Send your plans
Email the permit set for your Carver project. We tell you the same day whether you need a REScheck, a COMcheck or a HERS rating.
We model the building
We enter every assembly, window, light fixture and HVAC unit as designed and flag anything that fails before the plan reviewer sees it.
Permit-ready report
You get the signed compliance certificates and checklists, ready to upload with your Carver building permit application.
Plan review support
If the building department asks for changes, we revise the report and answer the reviewer's questions.
REScheck & COMcheck for Carver Permits
The state's adoption list shows Carver on the Massachusetts Stretch Code, effective July 1, 2019. Carver has not adopted the Specialized (Opt-In) Code, so Stretch Code rules decide whether your project can use a REScheck or needs a HERS rating.
Filing a permit in Carver
Building permits are handled by the Carver Building Department at Town Hall, 108 Main Street. The town says it does not offer online permitting at this time, so applications are printed and brought to the office, and your energy code report should be printed and attached to the paper application. For buildings other than one- and two-family homes, the commercial building permit application's document checklist includes an Energy Conservation Report, which is where a COMcheck belongs.
Which report fits
A REScheck is the usual document for a small residential addition or alteration where the prescriptive path is allowed: an addition up to 1,000 sq ft that is not more than 100% of the existing home. A new house in Carver needs a HERS rating instead, with a maximum of HERS 42 for a mixed-fuel home or 45 for an all-electric home. Larger additions and renovations that go past those limits need a whole-house HERS rating of 65 mixed-fuel or 70 all-electric.
On the commercial side, COMcheck covers the envelope, lighting and mechanical systems. The Ricketts Pond Business Park has seen new proposals, including a 2024 Planning Board application for a 7,494 sq ft commercial building. A new commercial building over 20,000 sq ft in a Stretch Code town needs more than a COMcheck.
HEEC's Somerville office at 519 Broadway is our closest location to Carver, and we deliver reports as PDFs you can print for the counter.
REScheck & COMcheck Questions for Carver Projects
Do I need a REScheck or a HERS rating in Carver?
Under the Massachusetts Stretch Code, new homes need a HERS rating (HERS 42 mixed-fuel or 45 all-electric) or Passive House. REScheck is used for additions of 1,000 sq ft or less that are not over 100% of the existing home, basement and attic conversions, and renovations. We confirm Carver's code status before we start.
When is a COMcheck required in Massachusetts?
A COMcheck documents commercial energy code compliance for new commercial buildings up to 20,000 sq ft (envelope, lighting and mechanical), for lighting and mechanical on larger buildings, and for commercial additions and alterations such as fit-outs, lighting changes and HVAC replacements. Massachusetts commercial code is based on the 2021 IECC with state amendments in 225 CMR 23.00.
What does a COMcheck include?
The COMcheck Envelope Compliance Certificate, the Interior and Exterior Lighting Compliance Certificates, the Mechanical Compliance Certificate, and the Plan Review Inspection Checklist. Massachusetts 225 CMR 23.00 Section C103.2 lists these as the construction-document requirements for buildings up to 20,000 sq ft.
What does a REScheck include?
A REScheck compares your home's envelope (insulation R-values and window U-values) to the code using a total UA trade-off, so stronger performance in one assembly can offset another. The report includes the compliance certificate and inspection checklist. Mandatory items such as air sealing and duct sealing still apply.
What size addition needs a HERS rating instead of REScheck?
In Massachusetts, a residential addition over 1,000 sq ft, or over 100% of the existing conditioned floor area, needs a HERS rating of the whole house (225 CMR 22.00 R502.1.1). Converting an existing basement or attic without changing the footprint or roofline does not.
What information do you need to prepare a REScheck or COMcheck?
Plans with wall, roof and floor sections, insulation types and R-values, the window and door schedule with U-factors and SHGC, and for commercial work the lighting fixture schedule with wattages, lighting controls, and HVAC and water heating equipment schedules.
Which software version is used in Massachusetts?
REScheck-Web with the 2023 Massachusetts Stretch Code option for residential, and COMcheck-Web set to the 2021 IECC (or ASHRAE 90.1-2019) for commercial, matching the code Massachusetts enforces.
How much does a REScheck or COMcheck cost in Carver?
REScheck reports start at $300 and COMcheck reports start at $600. The final price depends on the size of the project and how many assemblies and systems need to be entered. Send your plans for an exact quote.
Can I apply for a Carver building permit online?
Not at this time. The Carver Building Department says it does not offer online permitting, so print your application and energy code report and bring them to Town Hall at 108 Main Street.
Is Carver on the Stretch Code or the Specialized (Opt-In) Code?
The Stretch Code. The state's adoption list shows Carver adopting it effective July 1, 2019, and Carver has not adopted the Specialized (Opt-In) Code.
Related: HERS rating in Carver · Blower door testing · COMcheck & REScheck reports
Need a REScheck or COMcheck in Carver?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Carver permit.
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HERS Ratings in Carver, Massachusetts
Home Energy Efficiency Consultants provides Carver 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 Carver project — Somerville, Framingham, Marlborough, or Everett — or call (617) 501-6788 to schedule a Carver rating.
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