A dormer those without renovating

Would you like more space and daylight in your attic? At Smienk Dakwerken, we install your dormer professionally and with a sleek finish, from the structure to the lead flashing and guttering. Johan and his team work with clear agreements and top brands, ensuring your dormer remains beautiful and watertight for years to come.

More space and light in the attic? Smienk Dakwerken installs your dormer professionally and neatly, with a 10-year warranty on the work.

4.8

99 reviews

Free & no-obligation quote

Clarity regarding costs and work within 24 hours

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Description

4.8

99 reviews

More living space without renovating

By Smienk Dakwerken

Why does a dormer window yield so much with relatively little work? Because in a single intervention, you add full headroom and daylight to an attic that you are currently probably only using half of.

During installation, our team pays attention to the details that later determine whether a dormer remains watertight: the connection to the roof tiles, the leadwork on the sides, and proper drainage. This is precisely where things go wrong with a poorly installed dormer. We work on the construction, the lead and zinc work and the gutter Get it right the first time, so you can live underneath it worry-free for years.

This is how we install your dormer

View our working method

Step 01

Free roof inspection

We carefully inspect your roof, discuss the situation, and provide honest advice on the best solution. You are under no obligation.

Step 02

Clear quotation

Within 24 hours, you will receive a detailed quotation without surprises. After your approval, we will schedule the work in consultation with you.

Step 03

Professional execution

Our dedicated team installs your dormer, cleans everything up neatly, and delivers the work with a 10-year warranty.

Plastic or wood dormer?

Your choice

Nowadays, most people opt for a uPVC dormer because it is virtually maintenance-free and does not need to be painted. A wooden dormer, on the other hand, suits characteristic or older homes better, but requires periodic maintenance.

We will honestly discuss what suits your home and budget. More important than the material is the finish: a neatly installed dormer with good leadwork will last for decades, regardless of the choice.

Prefab dormer in a day

Quickly installed

A prefabricated dormer is delivered ready-made and often installed within a single day. This minimizes disruption and ensures your roof is watertight again quickly. Whether a prefabricated or a custom-built dormer is the best fit depends on your roof shape and preferences. After taking measurements, we will explain the options to you.

Renovation

Renovate

Do you have a dormer that is drafty, leaks, or looks outdated? Renovating is often more cost-effective than replacing it completely. We replace worn cladding, rotten wood, and old leadwork, and give the dormer a sleek finish so it will last for years to come.

How much does a cost dormer?

Clear rates

The cost of a dormer depends on the width, the material, and the finish you choose. After a free inspection and measurement, you will know exactly what is possible and what it costs. You will receive a fixed price in writing; you pay what is stated in the quote, without surprises. The inspection is free and completely without obligation.

We work with premium brands

For long-lasting results, we work exclusively with proven quality brands, including Monier, Wienerberger, and Bitasco.

Recently performed roof renovations

Portfolio

From a completely renewed tiled roof to a flat roof with new insulation and zinc work: our work speaks for itself. One of the projects we are most proud of is a tiled roof renovation where the client was satisfied from start to finish.

Roof renovation with sedum roof on commercial building in Zeewolde

Flat roof of 187 m² in Zeewolde renewed: demolished, 160 mm insulation, bitumen top layer and sedum.

Root-resistant bitumen roofing installed in Veenendaal

In Veenendaal, we installed a new flat roof with root-resistant bitumen.

Flat roof in Amersfoort renewed with two-layer bitumen roofing

In Amersfoort, we carried out a roofing project in which root-resistant bitumen roofing was installed.

What our customers say

Customer experiences

Our customers rate us 4.8 on Google. View their experiences and discover why they choose Smienk Dakwerken.

Rating

4.8

Based on 99 reviews

google

Excellent roofing work and craftsmanship. The collaboration went well; often things don't go according to plan on projects, but we resolved it perfectly. Thanks also for the extra service; we got the unblocking of another gutter included, which saves us some climbing around. I look forward to having them back for my next roofing project.

Nick Grotenhuis June 20, 2026

google

We hired Smienk Dakwerken for maintenance on our roof, and we were extremely satisfied. Communication regarding the work and costs was clear from the start. The team worked carefully and left everything clean. The result looks professional and gives us great confidence for the future.

Patrick Zolotucho June 17, 2026

google

Smienk delivered excellent performance in repairing the damage to our flat roof.

Aisa Jansen May 20, 2026

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A dormer those without renovating

Free & no-obligation quote

More living space without renovating