Compare the Top Free HVAC Estimating Software as of January 2026

What is Free HVAC Estimating Software?

HVAC estimating software assists in the management of resources and costs involved in air conditioning, heating and ventilation projects. Compare and read user reviews of the best Free HVAC Estimating software currently available using the table below. This list is updated regularly.

  • 1
    STACK

    STACK

    Stack Construction Technologies

    Bid Faster, Win More, and Build Smarter with STACK Takeoff & Estimate and STACK Build & Operate. From office to field, STACK speeds up your processes so you can stay competitive and eliminate uncertainty. Save time with STACK's powerful, time-saving AI features. Accelerated by AI. Driven by You. Features: - Fast, Accurate Takeoffs Powered by AI and Your Expertise - Regional Cost Data & Detailed Estimates - Streamlined Workflows & Document Control Create a free account or schedule a demo today!
    Starting Price: $0
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  • 2
    Orcatec

    Orcatec

    Orcatec

    Leading software for service industry, e.g. HVAC, Electrical, Plumbing, General Contracting, Carpet Cleaning, Gates, Fences, Windows, Hair and Beauty Salons. All MUST HAVE features gathered in one place to run successful business. Create and dispatch appointments. Distribute work for your team through unique system of work planning. Time Cards. Protect yourself from negative reviews with a special service. GPS tracking of employees. Route optimization. Very low credit card processing fees! Your business is unique therefore, Orcatec enables you to tailor the software to exactly how you want it to maximize the profitability. We offer live onboarding and training for you and your team. Custom software development for your business to be able to solve specific challenges that prevent you from being the best at what you do.
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    Starting Price: Free
  • 3
    BuilderSYS

    BuilderSYS

    SEnterpriSYS Limited

    Sets the industry standard in plan viewing and advanced takeoff software. Our Takeoff allows construction estimators & project managers to view and takeoff PDF plans & CAD output files, calculate materials, count objects, measure straight lengths, as well as calculate simple or complex areas and volumes with amazing speed and accuracy. Can prepare detailed, bill of materials/abstract estimate, including material and labor estimates of residential and low rise commercial buildings. You can also prepare tenders, variations, cost abstract, labor/contractor's bill, generate and approve selected purchase orders. Has features such as job details, remarks, job progress, customer details, contract documents, management, document library, share documents, mail merged standard letters, progress claims updating and job cash book entries.
  • 4
    ThermoGrid

    ThermoGrid

    ECI ThermoGrid

    ThermoGrid is a specialized contractor management software tool for managing field service operations, designed to meet the unique needs of HVAC-R, plumbing, and electrical companies. With ThermoGrid, you can streamline your workflow and boost your bottom line with powerful features like mobile offline app, scheduling, dispatching, client history tracking, inventory management, service agreements, load calculation, marketing tools, payroll management, invoicing, and estimates. ThermoGrid gives you the power to reach new heights of efficiency, accuracy, and profitability. Don't miss out on the opportunity to transform your business. Try it FREE or contact us today to request a demo!
    Starting Price: $60
  • 5
    RIB Candy

    RIB Candy

    RIB Software

    RIB Candy is the leading construction management software suite, designed for the estimation and control of built environment projects. Unique and powerful, Candy has been developed to the industry’s requirement - from take-off to pricing and planning a project, controlling at site level through to the final certificate. Features include project Estimating, Quantity Take-off (QTO), Planning, Forecasting, Cash Flow, Valuations, Subcontract Management and Cost & Allowable.
    Starting Price: $200
  • 6
    Methvin

    Methvin

    Methvin

    Methvin is a Collaborative Portal for Clients and Contractors. Shift from the adversary approach of managing clients to one of open communications. This will foster and improve relationships and outcomes for both parties. The shared goals will establish the basis for a motivated team and encourage individual contribution to the end goal of delivering your project on-budget and on-time. Methvin Agile is a project management tool that enables you to visually organize your project in a way better and easier than other expensive software packages. Methvin Agile will provide you with a place to deposit and use critical drawings and documents. Relax knowing that once loaded, these cannot be deleted; but can be retired and replaced with a new version. Further to this, Agile will facilitate the management of incidents on site through to closure including: Management System Estimating Software Gantt Scheduler Takeoff tool Contract documentation Drawing register Client RFIs
    Starting Price: Free for single users
  • 7
    Contractor WorkZone
    Run your back office from your front seat. Manage your business on site, take the work out of paperwork and get jobs done sooner. Save time and money with our construction management app tool. We take standard construction document processes and digitize them for easier access and organization. Items such as quotes and estimates, purchase orders, site diaries, daily reports, change orders, invoices and more are all now easily attached and accessible from one project link. Download and use completely free at our solo level as long as you want, with unlimited projects and documents for one device. If you’re ready to upgrade for additional features, try any of the paid subscription levels free for 2 weeks. If you're nervous about trying new technology or worry about introducing a new process we've got you covered. Try Contractor WorkZone - A simple, customizable project management and construction app to manage your small business from your phone, tablet or computer.
    Starting Price: $0
  • 8
    Trimble Metrics MEP

    Trimble Metrics MEP

    Trimble MEP UK

    Integrated end-to-end profitability management for MEP contractors. Deliver MEP projects on time and on budget using Metrics MEP, the cloud-based takeoff, estimating and contract management solution designed to gain visibility on the profitability of your business. Perform digital takeoff in a user friendly environment and manage your jobs to ensure profitability. 30% of MEP contractors are going out of business.  Too many MEP contractors go out of business because of inaccurate estimating, out of date material pricing and poor job cost management. How do you make sure you are not one of them? Your focus is on producing highly accurate estimates to ensure the profitability of every job as this can make or break your business. There is no room for error with Metrics MEP. Bad estimates lead to unprofitable jobs. You need an estimating program that allows you to perform takeoff accurately and create estimates from it without having to redo work. Spreadsheets and manual takeoff methods
    Starting Price: $622 per user, per year
  • 9
    Service365

    Service365

    Service365 Inc.

    Service365 is an end to end field service management platform that manages customers and quotes, jobs, purchases, and invoicing all in one place. Scope out a quote for customer approval. Build a quote worksheet. Schedule your field service teams. Simplify project and cost management. Purchase materials and link them directly to jobs. Confirm all costs from purchase orders make it to the job. Generate invoices and send customer summaries for approval. All in one platform for a nominal monthly Service365 offers a seamless way to track customer contact data, transactions, communications, opportunities, and invoices in one place. Easy to use and extremely powerful. Plan your resources and client time today, tomorrow and into the future with confidence and commitment to your client’s success.
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