WTW.nl
Replacement · older HRV units

From noisy to whisper quiet.

Old unit out, new one in, done in 6–8 hours on a single workday, often on your existing ductwork. Quieter, more efficient, with a maintenance contract.

FluisterstilTot 96% terugwinningBestaande kanalen
4.5 / 5 on Trustpilot (55 reviews)·Since 2018 ·Zehnder & Renson dealer

Recent · Vervanging op locatie

Oude Brink Air eruit, Renson Flux Wall erin.

Brink Air → Renson Wall
Ducts reusedFrom € 3,900ISDE € 4002y warranty

All-in estimate

from € 3,500

Excl. VAT · old unit out, new one in · usually on existing ducts. Final price after a short intake call.

Example: Q350 → Q350 ≈ € 3,900 excl. VAT (€ 1,895 unit + € 1,275 labour + parts).

  • Done in 6–8 hours on 1 workday
  • 2-year installation warranty
  • 2-year unit factory warranty
  • € 275 discount when commissioning yourself
500+
units replaced
95%
on existing ducts
6–8 hrs
average install
4.5 / 5
on Trustpilot

What is included?

One fixed price, all-in. No extra-work surprises.

Old unit removal

We remove the old noisy unit and dispose of it environmentally responsibly.

Duct reuse

In 95% of cases the new unit fits onto your existing ducts.

Duct cleaning

Thorough cleaning of exhaust ducts, included as standard.

Commissioning + measurement report

Balanced per valve. Measurement report by email.

Maintenance contract

1st year included, cancel monthly thereafter.

ISDE subsidy 2026

Possible € 400 ISDE subsidy per HRV unit

From 1 January 2026 energy-efficient HRV installations qualify for a € 400 ISDE subsidy per unit. We handle the application via our partner simpelsubsidie.nl.

Requirement: receipt from WTW.

How to proceed?

From request to commissioned unit in 1 week.

1

Fill in the form

Or call us directly for a quick intake.

2

We call within 24 hours

Short check: unit type, access, parking.

3

Done in 6–8 hours

Replaced, commissioned and explained in 1 workday.

Frequently asked questions

Answers to the most common questions.

How much does a replacement cost?+
Labour fixed at € 1,275 excl. VAT (including duct cleaning and measurement report). Plus the unit itself. Example: Q350 → Q350 ≈ € 3,900 excl. VAT. Final price after a short intake.
Can I reuse my existing ducts?+
In 95% of cases: yes. We check connections, sections and condition during intake. Sometimes a small adapter or adjustment is needed.
How long am I without ventilation?+
The replacement typically takes 6–8 hours on 1 workday. Between removal and commissioning you are a few hours without ventilation, usually not noticeable.
What if I want to commission it myself?+
We deduct € 275 from the price. By default we commission for optimal balance, recommended for warranty.
Which brand do you recommend for replacement?+
Both top quality. Zehnder Q is the classic with top service, Q450 is the most popular. Renson Flux is smarter (sensor + app). We advise based on your home.

Request your replacement quote.

Reply within 24 hours. Fixed price, no extra-work surprises.

Reply within 24 hours. No obligation, no pushy sales.
1. Which HRV brand do you prefer?
2. Your details
Estimated total
€ 1.275,-excl. VAT
Final after a short intake. We call within 1 business day.

We only call to discuss your request. No newsletters, no spam.

Prefer to call?

085 060 22 97WhatsApp

Official dealer Zehnder · Renson · Duco·First in NL with ComfoClime-certificate

Trustpilot 4.5/5 (55 reviews) · Google 5.0/5 (5 reviews) · 800+ installations · Since 2018