Access: often underestimated
A dormer install stands or falls on access for a heavy crane and materials. Narrow streets, parking pressure or overhanging trees can triple logistics costs. Check well before signing.
- Min street width 40-t crane
- 3.5 m clear
- Max crane distance to roof
- 12 m (40 t), 18 m (60 t)
- Parking restriction
- Free at municipality, 1-2 weeks ahead
- Street closure permit
- €50-€200 (varies)
- Traffic controller busy roads
- €300-€600/day
What can hinder installation
Narrow streets (<3.5 m) impassable for a 40-tonne crane, low trees blocking the lift line (pruning sometimes needed, ask tree owner), overhead power above the house (KPN/Liander check needed — €150-€350 power-off procedure).
Underground cables requiring road plates to spread load (€200-€500 plate hire per day), and parking pressure denying a crane spot. Ask the installer for a site survey upfront — good providers do this free.
What you arrange
Apply for parking restriction via the municipality (1-2 weeks ahead, free as 'temporary traffic measure'). Optional traffic controller for busy roads (€300-€600/day).
Street-closure permit (€50-€200 by municipality), and inform neighbours about access on install day. In apartment blocks: HOA consent for use of common space (lift line over neighbour's balcony).
Scaffold options without crane
When not crane-accessible, a 'piecewise' setup can be used: dormer elements brought in smaller modules and manually lifted. Premium €1,500-€3,500, +3-5 days lead time.
For traditional builds: fixed scaffold of 2-3 weeks (€800-€1,800 hire). Safer and cheaper than crane on complex sites; negotiate whether the scaffold can also serve concurrent works (painting, solar) — possible saving.
Urban and listed challenges
Amsterdam canal houses: nearly always crane from across the canal (60-80 t crane, €2,000-€4,000 half-day) or manual lift beam over the roof. Custom quote required.
Pedestrian zones or 30 km/h zones: exemption needed for truck delivery (€100-€300 per exemption). Some city centres only deliver 06:00-10:00 — plan install day accordingly.
FAQ
- Who pays for parking ban and street closure?
- Municipal request usually free or €50-€200; in installer's standard quote. Ask explicitly who arranges.
- Can a mobile crane work from the garden?
- If the back garden is min 4 m deep yes, provided the ground bears load (no lawn without road plates). Avoids street closure.
- What if the crane breaks down?
- Good installers have a backup day. In the contract ask 'what if crane unavailable' — answer should include replacement within 5 working days.
- Can installs happen on weekends?
- Technically yes, but many municipalities forbid for noise. Exemption possible (€200-€500), rarely worth the installer premium.
- How long does the crane block the street?
- Typically 4-6 hours. For neighbour planning: 06:30-13:00. Larger crane (60 t): up to 8 hours.