REScheck & COMcheck Longmeadow MA - Quick Facts
Local energy code in Longmeadow
- Longmeadow 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 Longmeadow is on the Stretch Code.
REScheck & COMcheck in Longmeadow
- REScheck documents the prescriptive residential path for Longmeadow 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 Longmeadow permit application.
Mass Save rebates for Longmeadow (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 Longmeadow MA
From small additions to commercial fit-outs in Longmeadow, we deliver the REScheck and COMcheck reports your Hampden County building department requires — accurate, signed, and turned around quickly.
What we deliver
A signed compliance report matched to your plans and ready to upload with your Longmeadow building permit application.
REScheck vs. COMcheck: What’s the Difference?
Both are free compliance software tools developed by the U.S. Department of Energy (DOE) to demonstrate that a building meets the International Energy Conservation Code (IECC). They document your envelope, and for commercial work your lighting and mechanical systems, so a plan reviewer in Longmeadow can confirm compliance quickly.
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.
REScheck Projects in Longmeadow
REScheck is the simplest path for smaller residential projects in Longmeadow 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
- Detached accessory structures with conditioned space
- Multifamily buildings of three stories or fewer
- Projects where insulation and window trade-offs are enough to demonstrate compliance
- Permit applications needing residential envelope documentation on the prescriptive or UA trade-off path
Commercial Work That Needs a COMcheck in Longmeadow
COMcheck is required for commercial and larger projects in Longmeadow. Reach for a COMcheck when your project involves:
- New mechanical (HVAC) or service water heating systems in commercial spaces
- Commercial buildings — offices, retail, restaurants, warehouses, and mixed-use
- Medical, dental, and professional office construction
- High-rise residential buildings of four stories or more
- Envelope work on commercial structures requiring IECC or ASHRAE 90.1 compliance
What Your Longmeadow Compliance Report Includes
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.
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 Longmeadow.
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 Longmeadow and Hampden County
Longmeadow sits in Hampden 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 Hampden County, matched to the code edition Longmeadow currently enforces.
REScheck & COMcheck Pricing in Longmeadow
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 Longmeadow. Send your plans for an exact quote.
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Which Energy Code Report Does a Longmeadow Project Need?
Longmeadow is not one of the 60 Massachusetts communities on the Specialized Code, so projects follow the Massachusetts Stretch Code (225 CMR 22.00 and 23.00), which 242 communities have adopted, or the base energy code if Longmeadow has not adopted the Stretch Code. We confirm Longmeadow's current code status against the state list before we prepare any report.
| Your Longmeadow 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. Longmeadow is in Hampden County, served from our Marlborough (272 Lincoln St) office.
How We Prepare Your Longmeadow REScheck or COMcheck
Send your plans
Email the permit set for your Longmeadow 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 Longmeadow 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 Questions for Longmeadow Projects
Do I need a REScheck or a HERS rating in Longmeadow?
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 Longmeadow'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 Longmeadow?
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.
Related: HERS rating in Longmeadow · Blower door testing · COMcheck & REScheck reports
Need a REScheck or COMcheck in Longmeadow?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Longmeadow permit.
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HERS Ratings in Longmeadow, Massachusetts
Home Energy Efficiency Consultants provides Longmeadow 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 Longmeadow project — Somerville, Framingham, Marlborough, or Everett — or call (617) 501-6788 to schedule a Longmeadow rating.
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