50 000 users in the construction industry!

We are Norway’s leading supplier of software, services and courses within disciplines such as HSE, quality assurance, building permit applications, estimation and project management. Our core strengths are our long and diverse industry experience combined with our professional and technological expertise.

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SmartKalk LCA

From 820,- /month.

SmartKalk Miljø is a module in SmartKalk that enables you to quickly and easily calculate your carbon footprint. A click on the “Environmental Data” button gives you access to the figures you need to meet governmental requirements.

Software package


From 2 080,- /month.

With SmartKalk Grunnpakke you get a user-friendly and flexible calculation tool that gives you spot on calculations and reports.

Software package

SmartKalk PRO

From 3 029,- /month.

With SmartKalk PRO you have what you need to calculate jobs, order construction products electronically and follow up production.

Software package


From 4 369,- /month.

SmartKalk PREMIUM gives you all available functionality in order to increase the value of your calculations.

Software package

JobOffice Plumber PREMIUM

From 2 739,- /month.

With our JobOffice Plumber PREMIUM package, you get everything you need to manage your plumbing projects digitally, from a to z.



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SmartKalk gives you a user-friendly and flexible estimating tool which produces reliable estimates and useful reports. The tool will help you save time when putting together a quote and give you peace of mind that your estimates are accurate.


Heat loss calculations in accordance with Section 14-2 of TEK 10.

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Environmental requirements must be satisfied, which can be an issue in the case of buildings with large glazed areas and windows. In any case, a heat loss calculation must always be performed. Holte’s building application department can assist you with this.


Estimation services – HVAC

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We carry out estimating assignments for the HVAC industry. We are renowned for our fast delivery times, good quality and neat presentation.

You can contact us on 45 50 60 70 or send us a request