Wooden frame header image

Part of Klusbedrijf Henk Oost

Custom Wooden frames & doors in Den Helder

Enhance your home with durable craftsmanship. Personally made and installed by the specialists at Henk Oost.

Craftsmanship by Henk Oost. Made in Den Helder.

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Craftsmanship.Quality.Custom made.

Kozijnen Kop van Noord-Holland is where
Craftsmanship and
Quality come together.

Discover custom quality
Our process

From advice to
Installation

  1. Advice & quote

    We discuss your wishes and create a custom, no-obligation quote.

  2. Measurement

    Our specialists visit for exact measurements and technical advice.

  3. Production

    Traditional craftsmanship in our own workshop in Den Helder.

  4. Installation

    Professional installation and finishing by our own assembly team.

Start your project

Subsidy & savings

Up to 30% back through ISDE

We bundle the frame plus HR+++ glass as one solution so you unlock the highest rebate and improve your energy label.

ISDE paperwork handled

We prepare the meldcode, invoice breakdown, and photo requirements so your application goes through smoothly.

Frame + HR+++ glass

Triple glazing in hardwood frames: airtight, less draft, and immediate heating savings.

Energy label gain

A full facade solution typically yields 1–2 label steps improvement.

Local proof

Den Helder and Schagen references show what neighbors received back.

Discuss subsidy

Our custom wooden products

Wooden frames

Our frames are manufactured from sustainable hardwood and custom-made in our own workshop. Perfect insulation and an authentic look for your home.

Find your perfect frame

Our products

Wooden doors

Stylish and safe wooden doors, custom-made. From robust front doors to elegant garden doors, perfectly matching the style of your home.

Find your perfect door

Our service

Frame installation & renovation services

From measuring to installation: we take care of the entire process. Our professionals ensure seamless installation and neat finishing of your new frames.

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Custom wooden frame Den Helder Custom hardwood front door installed in 1930s house Den Helder Professional frame installation service
Henk Oost at work
25+ Years
Experience
About Klusbedrijf Henk Oost

Masters in wood.
Passion for perfection.

Kozijnen Kop van Noord-Holland is an initiative of Klusbedrijf Henk Oost. We believe that a frame determines the character of your home.

From our base in Den Helder, we combine traditional craftsmanship with Henk Oost's years of experience. Each piece of wood is carefully selected, processed, and finished into a sustainable end product.

Part of Klusbedrijf Henk Oost. Sustainable quality from Den Helder.

  • Own workshop
  • Sustainable FSC® wood
  • Recognized craftsmanship
  • Personal contact
More about us View workshop

Worry-free wood

Factory finish that lasts for decades

Four-coat spray line with selected Meranti hardwood and FSC certification. No thin paint or gaps: everything leaves Den Helder ready for the North Sea climate.

Warranty & assurance
2-year construction and installation warranty plus rot-prevention guidance built into the maintenance plan.
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4-layer spray system

Primer, intermediate, topcoat, and sealer in a controlled hall for closed pores and even coverage you cannot achieve on-site.

Maintenance interval

First 10–12 years: gentle cleaning only. After that, light sanding and touch-up according to the maintenance plan.

Rot prevention

End grains saturated, joints sealed, ventilation profiles keep rebates dry to prevent moisture traps.

Material quality

Selected Meranti, FSC, laminated stiles, and mortise-and-tenon joints without internal stress.

Craftsmanship.Sustainability.Quality.

Why choose
Our frames?

  • Custom made in our own workshop

    Every frame is custom made in our own workshop in Den Helder. We combine traditional craftsmanship with modern techniques for a perfect result.

    Custom wooden frame workshop Den Helder

  • Renovation & restoration

    Specialist in replacing old frames and restoring monumental buildings. We ensure that the authentic look of your home is preserved.

    Restoration of monumental building with wooden frames

  • Sustainable & insulating

    Our hardwood frames are sustainable, low-maintenance and offer excellent insulation values. An investment that pays for itself in comfort and energy savings.

    Sustainable hardwood frame cross section

  • Installation in Den Helder and surroundings

    From measuring to professional installation: our local team takes care of everything. We work neatly, quickly and deliver your project broom clean.

    Professional frame installation Den Helder
Start your project

Installation promise

Clean & fast: wind- and watertight every day

No construction mess

We remove and install in phases, protect floors, and leave the facade wind- and watertight each day.

Waste removed

Old frames, glass, and debris leave the site immediately so you keep a tidy living room.

Henk's own crew

No subcontractors—you talk to the same team that measured the project.

Tight schedule

Typically 6–8 weeks lead time, installation in 1–3 days depending on the number of frames.

Plan installation

Projects in Den Helder & Schagen

Craftsmanship across the North Holland coast

Local before/after proof plus close-ups of our joinery.

1930s house in Den Helder with new wooden frames Before & after

1930s home, Den Helder

New hardwood frames with HR+++ glass while keeping the original profiles.

Farmhouse in Schagen with wooden sliding door Sliding door

Farmhouse, Schagen

Robust sliding patio door in Meranti with low threshold and airtight detailing.

Detail of draft-tight wooden frame finish Detail

Draft-tight interior finish

Interior frame detailing with tight stops, seals, and HR+++ glazing beads for comfort and noise control.

Wooden exterior door frame with seals, HR+++ glass, and multipoint lock Exterior

Exterior door frame, Den Helder

Wooden exterior door frame with multipoint lock, weather seals, and HR+++ glazing for a quiet, secure entryway.

Testimonials

What our customers say

The numbers

Traditional craftsmanship
For every home.

Common questions

Frequently asked Questions

Everything you need to know about our wooden frames, installation process, and warranty.

We primarily use high-quality, sustainable hardwoods like meranti, mahogany, and oak. These woods are chosen for their durability, weather resistance, and beautiful grain patterns. We can also source specific wood types upon request.
Yes, we provide a full-service installation. Our experienced team ensures that your new frames and doors are fitted perfectly, sealed correctly, and finished to the highest standards.
We offer a comprehensive 2-year warranty on the construction and installation of all our wooden frames and doors. This covers manufacturing defects and issues with the installation, provided regular maintenance guidelines are followed.
The timeline varies depending on the project size and complexity. Typically, production takes 6-8 weeks from the final measurement. Installation is usually completed within 1-3 days.
Absolutely. All our frames are designed to meet or exceed current energy efficiency standards. We use high-quality insulation strips and can accommodate double or triple glazing (hr++ or hr+++) to ensure optimal thermal performance.
We advise full service so sealing, airtightness, and finishing follow the plan and the construction/rot warranty remains valid.
All doors and frames come with Police-approved hardware (Politiekeurmerk Veilig Wonen), multi-point locks, and SKG** or SKG*** fittings.
No, you deal with Henk's own crew. We measure, produce, and install with the same team.
Typically 6–8 weeks from final measurement. Installation takes 1–3 days depending on how many frames are replaced.

Ready to enrich
Your home?

Choose craftsmanship and sustainability. We realize your dream frames custom-made, from design to installation.

Enrich my home →
Craftsmanship in the workshop
Contact Henk Oost

Start your project

Ready for quality? Choose full-service installation to keep your warranty and request free advice from Henk Oost.

Call Henk directly

06 - 19 33 06 34

Mailing address

Soembastraat 46, 1782 SP Den Helder

Response within 24h
Full-service keeps warranty

Call us directly

We are available on weekdays from 08:00 to 17:00

06 - 19 33 06 34

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