How much does a ridge raising cost?

Guideline prices 2026

Indicative total prices including VAT, excluding furnishing:

• Narrow terraced house (4–5 m wide): € 25.000 – € 32.000
• Standard terraced house (5–6 m wide): € 30.000 – € 40.000
• Corner house or semi-detached house: € 35.000 – € 48.000
• Wide or detached house: € 45.000 – € 60.000+
• Shifted ridge (asymmetrical): usually 10–20 % cheaper than a straight raising

Prices are based on contractor averages in 2026 and exclude major setbacks (asbestos, unsuitable foundation).

What is included in the price?

A proper quote for a ridge raising should at least include:

• Demolition of the existing roof structure, roof tiles and roof boarding.
• New structure (rafters, purlins, beams) — often timber frame construction (HSB).
• Roof boarding, insulation (minimum Rc 6,3), vapour barrier and foil.
• New roof covering: roof tiles, roofing felt or zinc — depending on shape.
• Rainwater drainage: new gutters and rainwater downpipes.
• Scaffolding, lifting work and construction waste disposal.
• Temporary weatherproofing during construction.
• Structural engineer calculation and construction drawing.

What is usually NOT included

Pay close attention to your quote. Often missing are:

• Interior finishing: plasterboard, plastering, painting, skirting boards.
• Loft floor finishing (vinyl, laminate, wood).
• Electricity: upgrading electrical circuits, sockets, lighting points.
• Heating: radiator, underfloor heating, split unit.
• Plumbing if a bathroom or toilet is added.
• Skylights or dormer in the new roof.
• Planning permission and fees (see below).
• Asbestos removal if existing roof boarding contains asbestos (€ 2.000 – € 8.000).

For interior finishing to a habitable state, easily expect an extra € 8.000 – € 20.000.

Planning permission, municipal fees and additional costs

For every project, expect:

• Environmental planning permit (omgevingsvergunning) for construction activities: municipal fees 1,5–4 % of the construction cost, depending on the municipality. On € 35.000, this easily amounts to € 700 – € 1.400.
• Aesthetic review (welstand): usually included in municipal fees, sometimes separate.
• Structural engineer: € 800 – € 2.000 for calculations and signature.
• Architect or construction supervisor (optional, often wise): € 2.000 – € 6.000.
• Architectural inspection report before starting: € 400 – € 700.

Where can you wisely save money?

• Do the interior finishing yourself if you are handy — easily saves € 5.000.
• Choose standard roof tiles instead of zinc or slate.
• Plan in the low season (autumn/winter) — some contractors offer discounts.
• Include neighbours in the same renovation: shared scaffolding and crane saves 5–10 %.
• Limit skylights to the essentials (1–2 Velux units).

Do not save on:

• Structure and insulation — you will regret it later.
• A VCA-certified contractor with a warranty scheme.
• Structural engineer calculation — mandatory for the planning permission.

Frequently asked questions

Short, honest answers to frequently asked questions.

Is a ridge raising 21 % or 9 % VAT?

Demolition and labour may fall under the 9 % rate if your home is older than 2 years (renovation scheme). Materials remain 21 %. Ask your contractor for a breakdown — this often saves € 1.000–2.500.

How many quotes should I request?

At least three. Differences of € 5.000–10.000 between contractors are normal. Have them all quote the exact same scope.

Is a ridge raising financially profitable?

An increase in WOZ (property value) plus living comfort usually make it pay for itself in 7–12 years. If selling within 3 years, it rarely breaks even.

Can I finance a ridge raising with my mortgage?

Yes, via a renovation deposit (verbouwingsdepot). Banks accept up to ~100 % of the value increase after renovation. Request an 'after renovation' valuation.

Do I get a subsidy for a ridge raising?

Not for the raising itself, but for insulation. Via ISDE you can get a subsidy on roof insulation (~€ 8–16 per m²) if it exceeds the Rc-value requirements.

What is a fair rate per m² of new roof?

Expect € 1.500 – € 2.500 per m² of renovated roof space in 2026 for the basic shell + insulation + roof covering. Finishing costs outside of this are additional.

What if the foundation is too light?

In older homes, this is checked by the structural engineer. Reinforcement costs € 5.000 – € 15.000 extra; sometimes, rather than paying that amount, you must switch to a lighter roof extension.

Summary

Expect a ridge raising to cost € 25.000 – € 40.000 for a terraced house, and € 40.000 – € 60.000+ for wide houses. Request at least three quotes with an identical scope, pay attention to the interior finishing which is often missing, and keep a 5–10 % reserve. With the correct VAT rate and shared scaffolding with the neighbours, you can realistically save € 2.000 – € 5.000.