WTW.nl
DIY package · with guidance

Save on average 40% by installing it yourself.

We deliver the complete package: tailored layout plan, all materials, on-site adviser and final commissioning by our technician. You or your contractor does only the mounting.

Up to 40% savingsCustom layout planCommissioning included
4,5 / 5 on Trustpilot (56 reviews)·Since 2018 ·Contractors welcome

Advice session + survey

€ 75 excl. VAT

One-off advice session including on-site survey. Deducted if you proceed to the full package.

Full package

Price after on-site survey

We set the price during a free on-site survey. No fixed from-price, every package is tailored.

Typical totals are between € 4,000–€ 7,000 incl. materials + advisor + commissioning.

40%
avg. savings
100%
complete package
1 day
on-site commissioning
4.5 / 5
on Trustpilot

Who is this package for?

Three types of customer, one package.

Whether you want to install it yourself, have your installer relieved of work, or as a contractor handle a construction project, we tailor the package.

Homeowner

Save up to 40% by installing yourself

You get the layout plan, all materials and an on-site adviser. You (or a handy friend) install. We commission the system at the end.

  • Layout plan + materials
  • On-site adviser
  • We commission

Installer

We handle plan + materials + commissioning

No time spent on engineering or commissioning. You receive a layout plan + materials package and install. We come by for commissioning + handover.

  • Engineering off your plate
  • No materials hassle
  • We commission

Contractor

We take ventilation off your construction project

For project builders and HOAs: we make the ventilation plan, deliver the full package and commission every unit individually. You focus on the build.

  • Complete ventilation plan
  • On-site delivery
  • Per-unit commissioning
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.

What is in the package?

From bracket to HRV, from advice to commissioning.

Tailored layout planDuct routing, valve positions, materials list, by our engineer.
On-site adviserMeasures, thinks along, explains. Before the order ships.
Complete materials packageBrackets, ducts, valves, silencers, HRV unit. Nothing forgotten.
Commissioning by our technicianBalanced per valve. Balanced supply and exhaust.
Handover + aftercareHow your system works, filter swaps, when to clean.

How does it work?

Four steps, on average 2 weeks from request to commissioned.

  1. 1Request + on-site visitWe come by, measure, discuss your situation. Advice call € 75 (credited).
  2. 2Layout plan + quoteComplete layout plan + materials list + fixed price.
  3. 3On-site deliveryMaterials delivered to your address. You/your tradesperson install.
  4. 4Commissioning + handoverOur technician commissions, gives handover, aftercare.

Frequently asked questions

Answers to the most common questions.

What is the difference vs. a full installation?
In a full installation our technicians mount everything. With the DIY package you (or your tradesperson) mount, saving 40% on average in labour. Engineering, materials package and commissioning stay with us.
Do I need professional skills?
For the HRV unit itself no, just mount it per our drawing. For the ductwork it helps to have a plumber or installer you know follow our layout plan.
What does a DIY package cost on average?
Between € 4,000 and € 7,000 incl. materials + adviser + commissioning, depending on brand + home size. Fixed price after on-site intake. We deduct the ISDE subsidy of € 400 per unit.
What if I get stuck during installation?
Call or WhatsApp us, we help by phone. In exceptional cases we send a technician (actual time only).
Do you work with contractors and HOA managers?
Yes, this is well suited for project construction. For large projects we offer a tailored rate. Call us for a quote.

Request your advice package.

Reply within 24 hours. No obligation, no pushy sales.

Price guide

  • On-site advice visit € 75, fully deducted on order
  • Layout plan, duct routing and materials advice
  • DIY saves up to 40%

Final price always follows a free on-site survey. No obligation.

Reply within 24 hours. No obligation, no pushy sales.
1. Your details
Price after on-site survey
Advice package price is set during the free survey. Customers save 40% on average vs. full installation.

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

Want to talk to an adviser?

085 060 22 97WhatsApp

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

Trustpilot 4.5/5 (56 reviews) · Google 5.0/5 (7 reviews) · 800+ installations · Since 2018