REScheck & COMcheck Littleton MA
Need a REScheck or COMcheck in Littleton? 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 Littleton 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 Littleton project needs depends on whether the work is residential or commercial — here is how they differ.
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.
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.
REScheck Projects in Littleton
REScheck is the simplest path for smaller residential projects in Littleton 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
- Window and insulation upgrades that must be documented for a building permit
- 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
- Additions, alterations, or renovations to a one- or two-family home
Commercial Work That Needs a COMcheck in Littleton
COMcheck is required for commercial and larger projects in Littleton. Reach for a COMcheck when your project involves:
- High-rise residential buildings of four stories or more
- Warehouse, industrial, and light-manufacturing conditioned spaces
- Envelope work on commercial structures requiring IECC or ASHRAE 90.1 compliance
- New mechanical (HVAC) or service water heating systems in commercial spaces
- Commercial buildings — offices, retail, restaurants, warehouses, and mixed-use
What We Deliver for Littleton Projects
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.
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 Littleton.
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.
Serving Littleton and Middlesex County
Littleton 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 Littleton currently enforces.
What a REScheck or COMcheck Costs in Littleton
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 Littleton. Send your plans for an exact quote.
Trusted by Littleton 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 Littleton?
Send us your plans and we will tell you which report you need and get it back to you fast — ready for your Littleton permit.
Email Energyconsultants01@gmail.com Call 617-501-6788
