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Next Level Maintenance & Services

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Next Level Maintenance and Services

Next Level Maintenance & Services stands for complete peace of mind, certainty and maximum efficiency.

We work preventively rather than reactively and ensure that installations remain safe, efficient and future-proof.

Customer Structure

Existing customers can enter a maintenance contract immediately. Customers who are not yet customers always start with a Smart Zero measurement to ensure safety and maintenance readiness.

Existing customer

Direct entry into maintenance contract

Not yet a customer

Starting with a Zero Measurement 150 EUR At entry Smart (will be settled) At entry Elite (no zero measurement fee)

Request a quoteSchedule consultation
Service &
Onderhoud

Maintenance packages

Avoid surprises and save money

Most chosen

Smart

Upgrade possible at any time

Complete unburdening

Elite

No unexpected costs

Maintenance

Once every two years

1x per year

Inspection

Yes

Yes

Yield Analysis

Yes

Yes

Optimization

Yes

Yes

Seasonal optimization

Advice only

On-site adjustment

Proactive monitoring

No

Yes

Priority for failures

No

Yes

Call-out charges in case of failure

For a fee

Free

Diagnosis in case of malfunction

For a fee

Free

Breakdown repair

For a fee

Free

24/7 emergency service

No

Free

Discounts on new products

No

5% discount

Customer eneregy BONUS

No

€50 discount p.y. per customer agreement

More about friends bonus

Suitable for

Security at low cost

Maximum peace of mind & relief

PV + Home Battery

€14.95 p.m. €159 p.y.

€24.95 p.m. €269 p.y.

Air conditioning

€12.95 p.m. €139 p.y.

€22.95 p.m. €249 p.y.

Heat pump

€19.95 p.m. €219 p.y.

€29.95 p.m. €329 p.y.

Ventilation

€9.95 p.m. €109 p.y.

€14.95 p.m. €159 p.y.

What to do in case of repair work?

Restore; if possible, taken care of immediately ”what we can safely and responsibly fix right away we do right away”

Planned Restore; thoughtful and not rushed ”You know exactly what is involved, what it costs and when it gets fixed”

The Sustainable Boys

Report malfunction

Something goes wrong? Then we’ll make sure it works again quickly. Call us directly on 046 428 21 51 or simply report the problem online.

Requesting a maintenance contractReport malfunction
Systems

Advantage maintenance per system

De Duurzame Jongens
Solar Panels
plan-van-zonneplan-zonnepaneel 2

PV + Home Battery - maximum efficiency - zero worries

The promise:

”Your installation must not only work, but continue to perform as promised. We make sure every kWh counts safely smart and future proof”

  • Smart Inverter Check: checking for operation, error messages and efficiency.
  • Battery health & charging strategy: understanding charging and discharging behavior and extending battery life.
  • Yield and monitoring analysis: we compare expected vs. actual returns and make adjustments as needed….
  • Meter box & safety: Checking for heat generation, connections and compliance with current standards.

”we guard not only your energy, but also your investment”

Air conditioning

The promise:

”Always fresh air, a healthy indoor environment and no unexpected breakdowns on hot or cold days.”

  • Air quality & filter performance: monitoring air quality and performance.
  • Refrigerant & Leak Detection: Prevent silent losses that undermine comfort and efficiency.
  • Electrical safety scan: Reliable connections and fault protection.
  • Efficiency analysis: assessing energy consumption and cooling/heating efficiency.

“More comfort, less consumption, without having to think about it yourself.”

Air conditioning
plan-van-zonneplan-zonnepaneel
Heat pump
plan-van-zonneplan-zonnepaneel

Heat pump

The promise:

A heat pump only works really well if it is perfectly matched to your home and the season.”

  • System & settings check: checking and optimizing parameters.
    • Safety: inspection of pressure, temperature and safeguards.
    • Efficiency & consumption: analysis of performance versus energy consumption.
    • Seasonal optimization: adjusting settings for summer and winter use
  • Maintenance of outdoor unit – vigorous and clean; thorough cleaning, checking for vibration, inspection weather and wear

“A heat pump that thinks with the seasons, not against them.”

Ventilation - Healthy air invisibly regulated

The promise:

”’ Always fresh air without noise pollution or energy waste, you only notice it because you feel better”

  • Air flow control: proper air exchange per room.
  • Filter inspection: checking and replacing as needed.
  • Noise and operation test: quiet and correct operation.
  • Efficiency check: energy efficient operation of the system.

” Good ventilation you don’t hear, but you feel every day ”

Ventilation
Service &
Onderhoud

What does Seasonal Optimization mean

Seasonal optimization means that twice a year we tune your installation for the upcoming season.

In winter the focus is on efficient heating, in summer on comfort, cooling and energy storage. So you get the maximum efficiency from your installation every season, without any extra worries.

8000 satisfied customers
preceded you

01 How often should I have maintenance done?

If you feed back more electricity each year than what you take away, you will receive a lower fee for the surplus you produce. This is the feed-in fee. The exact amount is determined by your energy supplier. More information can be found here.

02 What happens during a maintenance service?

If you generate power that you are not using at that time, you feed it back to the energy grid. It is then offset against the electricity you purchase. This is called net-metering. The same price applies as for your electricity. More information can be found here.

03 Can I also become a customer if my installation is not by

An Energy Savings Loan allows you to borrow money on favorable terms to make your home more sustainable. The interest is usually tax deductible. There is 0% interest for households with a joint income below 60,000 euros. More information can be found here.

See all FAQ

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