Missed Call Cost Calculator
Quantify the revenue HVAC, plumbing, and electrical shops lose when calls go unanswered — enter your call volume, miss rate, booking rate, and average job value with trade-specific defaults.
Free HVAC Business Tools
Free calculators, templates, and generators built for HVAC contractors. Price jobs, download documents, and grow your shop without paying for generic software.
Featured HVAC tools
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Profit Margin Calculator
Calculate net profit per HVAC job after labor, parts, and overhead.
BTU Calculator
Estimate heating and cooling BTUs from room size, climate zone, insulation, ceiling height, windows, and sun exposure — with tonnage recommendations for AC and heating.
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26 of 26 tools
Calculators
Math-based tools for pricing, margins, overhead, and technical sizing.
BTU Calculator
Estimate heating and cooling BTUs from room size, climate zone, insulation, ceiling height, windows, and sun exposure — with tonnage recommendations for AC and heating.
Profit Margin Calculator
Calculate net profit per HVAC job after labor, parts, and overhead.
Labor Rate Calculator
Calculate your fully loaded billable hourly rate — base wage, payroll burden, workers’ comp, benefits, overhead recovery, and target net profit using the industry divisor method.
Markup & Margin Calculator
Turn part and material cost into the right sell price — convert markup to margin (and back) and stop underpricing every job.
Business Valuation Calculator
Estimate what your business could sell for using the SDE × multiple method — with value drivers, a likely price range, and a revenue cross-check.
Missed Call Cost Calculator
Quantify the revenue HVAC, plumbing, and electrical shops lose when calls go unanswered — enter your call volume, miss rate, booking rate, and average job value with trade-specific defaults.
Job Pricing Calculator
Price HVAC, plumbing, and electrical jobs with cost-plus formulas — loaded labor, materials, overhead recovery, and target net margin using the industry divisor method.
Bid Calculator
Build a winning bid from the ground up — materials, labor, overhead, and profit margin — so every quote covers your true cost and hits your target margin.
Break-Even Calculator
Find how many jobs you need each month to cover all expenses.
Service Price Calculator
Set a flat-rate service price from your true cost — loaded labor, materials, overhead, and target margin — so every service call is priced for profit, not guesswork.
Load Calculator
Estimate heating and cooling load for residential HVAC sizing — square footage, climate zone, insulation, internal gains, and equipment capacity in BTU/hr and tons.
Employee Cost Calculator
True hourly and annual cost of an HVAC tech after payroll taxes, workers’ comp, benefits, and truck.
Equipment ROI Calculator
See if a new HVAC van, tool, or machine pays for itself — payback period and return on investment.
HVAC Duct Size Calculator
Size round and rectangular HVAC ducts from CFM and target air velocity — with standard size recommendations, equivalent diameter, and friction loss estimates.
Financing Calculator
Turn a system price into a monthly payment — show customers "$X/month" and see total interest by term.
Marketing ROI Calculator
Measure ROI, ROAS, cost per lead, and CAC on your HVAC ad spend and lead sources.
Labor Cost Calculator
Find the total burdened labor cost for one job — loaded hourly cost (wage + burden) × hours × crew — and see labor as a percent of the job price.
Crew & Subcontractor Cost Split Calculator
Split one job’s revenue and cost across your crew, subcontractors, and materials — and see the margin you keep on each.
SEER Energy Savings Calculator
Show customers the annual energy savings and simple payback of upgrading to a higher-SEER/SEER2 AC or heat pump — from capacity, ratings, climate, and electricity rate.
HVAC Static Pressure Calculator
Diagnose total external static pressure (TESP) against the blower rating, or design duct friction rate from available static pressure and effective length — ACCA Manual D and NCI methods.
Duct Weight Calculator
Estimate the sheet-metal weight of round and rectangular duct by gauge and material — surface area, bare weight, waste allowance, and total pounds for material takeoffs and hanger sizing.
HVAC ACH Calculator (Air Changes Per Hour)
Calculate air changes per hour from measured airflow and room volume, or reverse it to get the CFM required for a target ACH — graded against recommended ranges for homes, offices, kitchens, shops, and healthcare spaces.
HVAC CFM Calculator
Calculate required airflow three ways — from tonnage at 350/400/450 CFM per ton, from the sensible heat equation and measured ΔT, or from room volume and air changes per hour.
Hydronic Flow Rate (GPM) Calculator
Calculate required hydronic loop flow from BTU/hr and design ΔT, correct the 500 constant for propylene or ethylene glycol, and check water velocity against the 2–4 ft/s closed-loop band.
HVAC Superheat & Subcooling Calculator
Turn gauge pressures and line temperatures into actual superheat and subcooling for R-410A, R-454B, R-32, R-22, and R-134a — then compare against the fixed-orifice target-superheat chart or the 8–12 °F TXV/EEV subcooling window.
Refrigeration BTU Calculator
Size walk-in cooler and freezer refrigeration equipment the way the manufacturer load forms do — transmission, air change, product pull-down, and internal load, plus safety factor and compressor run time.
Why HVAC contractors need the right tools
HVAC contractors juggle emergency calls, seasonal demand, flat-rate pricing, and crew scheduling — often from the cab of a service truck. Free tools help you quote faster, document consistently, and spot margin problems before they show up on your P&L.
CloseCrew built these hvac resources for shops that want to look established from day one. Run the missed call cost calculator to see what voicemail is costing you. Download templates your techs will actually use. Then let Larry handle inbound calls while you focus on the work.
Related resources for HVAC contractors
Templates, articles, and product pages that pair with these tools.
Business Templates
Free downloadable documents for hvac contractors.
Browse templatesContractor Blog
Guides on pricing, hiring, marketing, and operations.
Read guidesHVAC Licensing
State licensing requirements, exams, and renewal rules for hvac contractors.
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See how Larry answers calls and books jobs for your team.
Get a demoHVAC tools FAQs
Is this closecrew tool free for HVAC contractors?
Yes. Every tool on CloseCrew is free to use. We built it for hvac contractors who need professional business resources without paying for generic software.
Do I need an account to use this tool?
No account is required to run calculators or try generators. Some downloads may ask for your email so we can send you a copy — you can unsubscribe anytime.
Can I use this for my HVAC business?
Absolutely. Enter your own numbers, customize templates with your logo and pricing, and use the results in your daily operations.
Does CloseCrew work with these tools?
Many contractors use CloseCrew tools alongside Larry, your AI receptionist, to stay organized while every inbound call gets answered. Tools help you quote smarter; Larry helps you capture every lead.
