REScheck & COMcheck Barnstable MA - Quick Facts
Local energy code in Barnstable
- Barnstable is a Stretch Code community - the statewide baseline for new construction and major renovations. IECC Climate Zone 5A.
- Massachusetts has three energy-code levels - base (2021 IECC), Stretch, and Specialized (Opt-In) - and Barnstable is on the Stretch Code.
REScheck & COMcheck in Barnstable
- REScheck documents the prescriptive residential path for Barnstable 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 Barnstable permit application.
Mass Save rebates for Barnstable (2026)
- 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 Barnstable MA
Home Energy Efficiency Consultants prepares REScheck (residential) and COMcheck (commercial) compliance documentation for Barnstable projects. When your build does not trigger a full HERS rating, these DOE compliance reports are the fast, affordable path to your permit.
What we deliver
A signed compliance report matched to your plans and ready to upload with your Barnstable 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 Barnstable 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 Barnstable
REScheck is the simplest path for smaller residential projects in Barnstable that do not need a HERS rating. It is typically the right tool for:
- New residential construction or an addition of 1,000 sq ft or less that does not require a HERS rating
- Finished basements, attic conversions, and dormer additions on existing homes
- Detached accessory structures with conditioned space
- Additions, alterations, or renovations to a one- or two-family home
- Projects where insulation and window trade-offs are enough to demonstrate compliance
When Do You Need a COMcheck in Barnstable?
COMcheck is required for commercial and larger projects in Barnstable. Reach for a COMcheck when your project involves:
- Tenant fit-outs and interior or exterior lighting alterations
- New mechanical (HVAC) or service water heating systems in commercial spaces
- Medical, dental, and professional office construction
- Commercial buildings — offices, retail, restaurants, warehouses, and mixed-use
- Envelope work on commercial structures requiring IECC or ASHRAE 90.1 compliance
Inside Your REScheck or COMcheck Report
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.
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 Barnstable.
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 Barnstable and Barnstable County
Barnstable sits in Barnstable 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 Barnstable County, matched to the code edition Barnstable currently enforces.
What a REScheck or COMcheck Costs in Barnstable
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 Barnstable. Send your plans for an exact quote.
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“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.”
Which Energy Code Report Does a Barnstable Project Need?
Barnstable is not one of the 60 Massachusetts communities on the Specialized (Opt-In) Code, so projects follow the Massachusetts Stretch Code (225 CMR 22.00 and 23.00), which 242 communities have adopted. The state's adoption list shows Barnstable on the Stretch Code since July 1, 2026, when it replaced the base energy code.
| Your Barnstable 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. Barnstable is in Barnstable County, served from our Framingham (68 South St) office.
How We Prepare Your Barnstable REScheck or COMcheck
Send your plans
Email the permit set for your Barnstable 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 Barnstable 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 Barnstable Permits
Barnstable's energy code changed this year. The town adopted the Massachusetts Stretch Code with an effective date of July 1, 2026, replacing the base energy code, and it has not adopted the Specialized (Opt-In) Code. If a project was designed under the old rules and is only now being permitted, confirm which code applies before you order paperwork.
What the switch means for a Barnstable project:
- New homes now need a HERS rating of 42 mixed-fuel or 45 all-electric. REScheck is not accepted for a new house under the Stretch Code.
- Small additions and alterations can still use REScheck: an addition up to 1,000 sq ft that is not more than 100% of the existing home, where the prescriptive path is allowed.
- Larger additions and major renovations need a whole-house HERS rating of 65 mixed-fuel or 70 all-electric.
- Commercial buildings use COMcheck, and one over 20,000 sq ft needs more than COMcheck under the Stretch Code.
The Building Division at 200 Main Street in Hyannis handles permits through the town's online Permitting, Licensing and Code Enforcement portal by OpenGov, so the energy report is uploaded with the plans. If an application was already filed before July 1, ask the Building Division which code edition it is being reviewed under before ordering a new report.
New housing is moving forward in the villages: Barnstable Flats is adding 45 rental units in four buildings in Hyannis, and Cornerstone Homes is planning a three-story, 50-unit building in downtown Hyannis on a former car dealership lot. HEEC's Framingham office at 68 South St covers the Cape, and reports are delivered digitally.
REScheck & COMcheck Questions for Barnstable Projects
Do I need a REScheck or a HERS rating in Barnstable?
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. Barnstable has been on the Stretch Code since July 1, 2026.
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 Barnstable?
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.
When did Barnstable adopt the Stretch Code?
The state's adoption list shows Barnstable's Stretch Code taking effect on July 1, 2026. Before that the town used the base energy code. New homes permitted under the Stretch Code need a HERS rating rather than a REScheck.
Can I still use REScheck for an addition in Barnstable?
Yes, for an addition up to 1,000 sq ft that is not more than 100% of the existing home, where the prescriptive path is allowed. Larger additions and major renovations need a whole-house HERS rating of 65 mixed-fuel or 70 all-electric.
Related: HERS rating in Barnstable · Blower door testing · COMcheck & REScheck reports
Need a REScheck or COMcheck in Barnstable?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Barnstable permit.
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HERS Ratings Across Barnstable and Nearby Communities
Home Energy Efficiency Consultants rates new homes, additions, and major renovations throughout Barnstable — from Hyannis, Centerville, and Osterville to Cotuit and Marstons Mills. Every Barnstable project is filed with the Town of Barnstable Building Division, 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 Barnstable, including Yarmouth, Mashpee, Sandwich, Dennis, and Falmouth. 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 Barnstable rating on the schedule.
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