REScheck & COMcheck Winthrop MA - Quick Facts
Local energy code in Winthrop
- Winthrop 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 Winthrop is on the Stretch Code.
REScheck & COMcheck in Winthrop
- REScheck documents the prescriptive residential path for Winthrop 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 Winthrop permit application.
Mass Save rebates for Winthrop (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.
RESNET-certified · 15,000+ ratings completed · 5.0 stars across 136 Google reviews · (617) 501-6788
REScheck & COMcheck Winthrop MA
Fast, accurate REScheck and COMcheck energy code compliance reports for residential and commercial projects in Winthrop, Massachusetts. We prepare the documentation your building department needs to issue a permit — without the cost of a full performance-path energy rating when your project does not require one.
What we deliver
A stamped, signed compliance report matched to your plans and ready to upload with your Winthrop building permit application.
Understanding REScheck and COMcheck
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 Winthrop 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 is DOE software for commercial buildings and high-rise residential (four stories or more). It checks the building envelope, interior and exterior lighting, and mechanical systems against the IECC or ASHRAE Standard 90.1, and can trade off components across the design.
When Do You Need a REScheck in Winthrop?
REScheck is the simplest path for smaller residential projects in Winthrop 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
- Permit applications needing residential envelope documentation on the prescriptive or UA trade-off path
- Projects where insulation and window trade-offs are enough to demonstrate compliance
- Detached accessory structures with conditioned space
When Do You Need a COMcheck in Winthrop?
COMcheck is required for commercial and larger projects in Winthrop. Reach for a COMcheck when your project involves:
- Envelope work on commercial structures requiring IECC or ASHRAE 90.1 compliance
- Warehouse, industrial, and light-manufacturing conditioned spaces
- Commercial buildings — offices, retail, restaurants, warehouses, and mixed-use
- Restaurant build-outs and retail white-box improvements
- New mechanical (HVAC) or service water heating systems in commercial spaces
What We Deliver for Winthrop Projects
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 Winthrop.
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 Winthrop and Suffolk County
Winthrop sits in Suffolk 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 Suffolk County, matched to the code edition Winthrop currently enforces.
What a REScheck or COMcheck Costs in Winthrop
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 Winthrop. Send your plans for an exact quote.
Trusted by Winthrop 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 Winthrop?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Winthrop permit.
Email Energyconsultants01@gmail.com Call 617-501-6788HERS Ratings Across Winthrop and Nearby Communities
Home Energy Efficiency Consultants rates new homes, additions, and major renovations throughout Winthrop — including Winthrop Center, Point Shirley, Cottage Hill, and Court Park. Every Winthrop project is filed with the Town of Winthrop 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 Winthrop, including Revere, Boston, Chelsea, and East Boston. Our Everett office at 371 Main St is the closest of our four Massachusetts locations — see our Everett office or call (617) 501-6788 to get a Winthrop rating on the schedule.
More Massachusetts Towns We Serve
Certified HERS ratings, blower door testing and energy code compliance across all 351 Massachusetts cities and towns.
