SaveBricks
SaveBricks
Our calculators are built for early project planning. They estimate a budgetary range, then help you compare written contractor quotes with more context.
We start with current public reference points for common installed projects, then encode a conservative national planning baseline. It is editorial modeling, not a live contractor-quote database.
The calculators adjust for the choices shown on screen, such as size, material, system type, or household capacity. They do not claim to localize a number from a ZIP code.
Ranges assume a standard professional installation. Unusual ductwork, decking repairs, electrical work, full-frame window replacement, or structural issues can move the final quote outside the range.
The estimate is not a contractor bid. We recommend collecting at least three written quotes and comparing materials, permits, exclusions, warranty, and cleanup before choosing.
Use SaveBricks when you are deciding whether a project is financially realistic, preparing questions for contractors, or checking whether a quote is far outside a typical planning range.
A final quote requires an on-site inspection. Contractors may find issues that online tools cannot see, including damaged roof decking, undersized ductwork, unsafe electrical connections, rot around windows, access constraints, or code upgrades.
Treat the low end as a simpler project with standard materials and the high end as a more complex project with better materials, higher local labor, or extra preparation. If a bid is far below the range, ask what is excluded. If it is far above, ask which scope items explain the difference.
Most calculators use a simple model: a base project cost plus a size- or capacity-based amount, multiplied by any explicitly selected project factor. The result is shown as a low-to-high band rather than a precise prediction. The current default band is generally plus or minus 15%, with a wider band where project conditions vary more.
Those constants are versioned in the calculator code and reviewed against the sources below. They do not include hidden rot, code corrections, unusual access, structural work, or a contractor's current backlog unless the page specifically says otherwise.
We use authoritative public resources as guardrails for homeowner guidance, including the Department of Energy's Energy Saver guidance, ENERGY STAR installation guidance, IRS energy credit pages, FEMA mitigation resources for storm-prone roofing details, and BLS construction producer-price data as a broad inflation check. Sources support the assumptions around a range; they are not presented as a survey of SaveBricks customers.
Choose a calculator, then compare its assumptions with written contractor proposals.