For HVAC businesses

HVAC software that doesn't lose a minute during heating season

One tool for maintenance planning, job sheets with meter readings and on-site measurements, and instant invoicing: built for sole traders and SME installation businesses in the Netherlands.

14 days free
No credit card
Cancel monthly

From request to invoice Live

New request received Phone · just now

Request Captured

Planning Scheduled

Job sheet Ready to invoice

One record moves with the job Nothing entered twice

In short

Wat je nodig hebt, in één systeem

HVAC software is a digital tool that lets installation businesses manage maintenance planning, fault reports, job sheets with readings and invoicing in one place: from the boiler, not from the office. Flixer Pro is built for both sole trader HVAC businesses and SME installation businesses, with maintenance visits scheduled ahead in the calendar, flue gas and CO readings recorded directly on the job sheet, and a record per boiler that's ready the moment the next visit or fault call comes in.

Plan maintenance ahead

See exactly when the next visit is due, per customer and boiler, and plan the whole heating season ahead in a single calendar.

Readings on the job sheet

Record flue gas and CO readings, replaced parts and photos for every visit on the job sheet, right there on site.

HVAC work runs at two speeds. During heating season, roughly from October to March, it’s a sprint: breakdowns leaving a family without heating or hot water, maintenance visits booked months in advance that all fall in the same period, and a phone that never stops ringing. The rest of the year is about replacements, quotes and planning ahead for the next season. Either way, the calendar is full, and one overrun or emergency callout pushes the whole day back.

On top of that, the trade has become administratively heavier in recent years. Since April 2023, only a CO-vrij certified business is allowed to work on gas combustion installations, with a duty to identify yourself and a logo that’s meant to appear on everything you send out. At the same time, the work is slowly shifting from gas to hybrid and all-electric: the mandatory boiler replacement that was due to start in 2026 has been shelved, but is back on the agenda for 2029, and the ISDE subsidy keeps demand for heat pumps going. For many HVAC businesses that means a mix of a paper diary, paper job sheets with meter readings, and quotes for both a new boiler and a heat pump: a system that works, until it gets busy.

Probleem & oplossing

The daily reality of HVAC work

Tracking recurring maintenance too often happens from memory

When a boiler is due for its next service is often written in a separate diary or simply remembered: a missed visit means an unhappy customer, or a breakdown that could have been prevented.

Plan maintenance visits ahead and see when the next one is due, per boiler

Flixer Pro tracks when the next visit is due for every customer and installation and schedules it ahead in the calendar, so planning a season isn't a last-minute puzzle.

Emergency breakdowns during heating season demand fast dispatch

When a boiler fails and it's freezing outside, every hour counts, but working out which engineer is closest and what the boiler's history is takes the most time exactly when you can least afford it.

Send the nearest engineer to a breakdown, with the boiler history included

Incoming calls arrive through the phone integration and the requests inbox; the planner sees who's nearby and sends the address and the full record straight to the engineer's phone.

The CO-vrij paperwork and logo need records that are consistent everywhere

The CO-VRIJ logo needs to appear on quotes and invoices, the engineer needs to be able to identify themselves, and you want to be able to find your readings for every visit: in practice that's scattered across paper, email and the van.

Show your CO-VRIJ logo on quotes and invoices and log readings in free-form fields

On the job sheet you fill in flue gas and CO readings, replaced parts and photos for every visit, and your quotes and invoices have space for your logo and certification details.

Quotes range from boiler replacement to hybrid heat pumps

A customer with a boiler at the end of its life wants to know what a new boiler costs, and what a hybrid heat pump with ISDE subsidy costs, and each of those is a different set of options and calculations.

Create quotes with options for both boilers and heat pumps

Put a new boiler, a hybrid and an all-electric solution side by side in the quote, and record the details your customer needs for their ISDE application.

Meter readings, parts and photos get noted on site but processed only later

The engineer jots down at the kitchen table what he measured and replaced, and in the evening it all has to be typed up into a job sheet and an invoice, if it even gets done that evening at all.

Fill in the job sheet on site and invoice straight away

Meter readings, parts, photos and signature go on the job sheet the moment the work happens; the invoice goes out straight from the job, with online payment for the customer.

Everything an HVAC business needs

One system for planning, job sheets, records and invoicing: built for the van and for the office.

Smart phone integration

New breakdowns, maintenance requests and quote requests land directly in the system, even while you're standing at a boiler.

Requests inbox

Requests by phone, website and email come together in a single inbox: no more breakdown reports getting lost in a group chat.

Track leads

See which boiler or heat pump quote is still open for each homeowner or VvE (owners' association), and who needs following up this week.

Job records

Every visit, breakdown and replacement in one overview: job sheet, readings, parts and photos, visible to the whole team.

Calendar

Schedule maintenance visits and breakdowns ahead, and reschedule with a single drag when a job overruns, without throwing off the rest of the day.

CRM per boiler

A complete record per boiler and customer, with job sheets, readings and replaced parts: ready the instant the next visit or breakdown comes in.

Quotes and invoices

Send quotes with boiler or heat pump options and invoices straight from the job, and let customers pay online instantly: no more separate payment links needed.

Heating maintenance in practice

Four moments from a working week, and how Flixer Pro keeps them running smoothly.

Scenario 1

A boiler fails on a freezing cold morning

A customer calls at 07:30 to say the boiler has a fault and the house is staying cold. The call is automatically recorded and transcribed into the customer record. The planner sees in Flixer Pro which engineer is closest, adds the emergency job to their route and sends the address along with the boiler history (type, age, last visit and previously replaced parts) to their phone. The engineer knows what to look for before they even ring the doorbell, and the customer is warm again by the same morning.

Scenario 2

Annual maintenance visit with a flue gas measurement

An engineer drives their maintenance round and arrives at a boiler scheduled for its annual service. During the job they fill in the job sheet on their phone: flue gas values, CO reading, pressure, replaced parts and a photo of the boiler. The customer signs off on screen, and the invoice that follows carries the company's CO-VRIJ logo. The record stays attached to the address, so last year's reading sits right alongside it at the next visit.

Scenario 3

Replacing boilers in 30 homes for a VvE

A VvE (owners' association) awards the contract to replace 30 boilers over two weeks. The planner puts the addresses into the calendar in order and splits them across two engineers, with the boiler type and materials attached to each home. Each engineer works through their list, fills in the job sheet and serial numbers per home, and the office can see progress live. At the end there's a record for every home, and the VvE can be invoiced in one go, with no need to hunt down thirty separate folders.

Scenario 4

Thursday evening: a quote for boiler versus hybrid heat pump

After a day of maintenance work, the owner puts together a quote that evening for a customer with a boiler at the end of its life. In Flixer Pro he places two options side by side: a new boiler and a hybrid heat pump, with the ISDE details the customer needs. The quote goes out with one click, ready for online payment as soon as the customer decides. He then checks over that day's visits: the job sheets are already complete in the system, so the invoices can be sent straight away.

Normen & regelgeving

Standards and regulations HVAC businesses work with

Since April 2023, HVAC businesses have worked under the CO-vrij certification, alongside SCIOS, F-gases for heat pumps, the ISDE subsidy scheme and the CAO. Flixer Pro supports the paperwork around all of this (recording, reporting and retrieving) so audits and warranty questions don't get stuck on paperwork that's gone missing.

Gasketelwet / CO-vrij-certificering Wet

Bbl/Bkl, the Register of gas combustion installations (Register gasverbrandingsinstallaties), schemes including BRL 6000-25.

Free-form fields for flue gas, CO and pressure readings per visit, and space to show the CO-VRIJ logo and certification details on quotes and invoices. Helps build up a record per boiler.
SCIOS-scope Scope

Heating installations above 100 kW: commercial and industrial.

Free-form fields where engineers can log inspection findings and readings per installation, to build up a record.
F-gassenverordening (EU 517/2014) EU

Refrigerant and leak checks for hybrid and all-electric heat pumps.

Free-form fields for refrigerant and leak check data per installation; substantive responsibility remains with the certified engineer.
ISDE-subsidieregeling Subsidie

Hybrid and all-electric heat pumps: records for the customer's subsidy application.

Supports recording the invoice, serial number and meldcode per home, so the customer has everything together for their subsidy application.
CAO Metaal & Techniek CAO

Technisch Installatiebedrijf sector: hours registration, travel time and allowances.

Supports hours registration, travel time and allowances in line with the CAO.
AVG / GDPR Privacy

Customer data is stored encrypted within the EU; a processing overview can be exported per customer.

Flixer Pro is an administrative tool, not a certification system. Substantive responsibility for CO-safe work and correct reporting remains with the CO-vrij certified installation business and the qualified engineer.

Frequently asked questions

What is the best software for HVAC businesses in the Netherlands?

The best software for HVAC businesses combines forward maintenance planning, job sheets with meter readings and on-site measurements, and instant invoicing. Flixer Pro is built specifically for this: made for both sole traders and SME businesses, with maintenance visits in the calendar, flue gas and CO readings on the job sheet and automatic call logging in the customer record.

Is Flixer Pro also suitable for a sole trader HVAC business, or only for larger businesses?

Flixer Pro works from a single user upwards. Sole traders use it for planning, job sheets and invoicing; SME businesses with multiple engineers use it for planning per engineer, hours registration and record management. You pay per user, so the tool scales with your business.

What does HVAC software cost?

Flixer Pro starts from €65 per month, with no setup costs or contract commitment. You can try it free for 14 days and cancel monthly after that.

How does Flixer Pro support my CO-vrij paperwork?

Flixer Pro isn't a certification system, but it supports the paperwork around the Gasketelwet with free-form fields for flue gas, CO and pressure readings per visit, and space to show your CO-VRIJ logo and certification details on quotes and invoices. Substantive responsibility for CO-safe work remains with the certified installation business and the qualified engineer: the tool helps you build up a record per boiler.

Can I transfer my existing customer and project data to Flixer Pro?

Yes, you can import customers and projects from Excel, Moneybird and WeFact. For larger migrations, the Flixer Pro team helps with a guided import, usually done within one working day.

Does Flixer Pro also work offline, if I'm in a meter cupboard or crawl space with no signal?

Yes, the Flixer Pro app works offline. Job sheets, readings, photos and signatures are stored locally on your phone and sync automatically as soon as you have signal again, without you losing anything.

Integraties