Contractors · Aboss Bouwsterren

A reliable contractor for your renovation

How do you know whether a contractor deserves your trust? Amstelada Architecten works with the Aboss Bouwsterren network: a rating system that makes the quality of contractors and building teams visible. From a tradesperson for a single job to a building team for a complete home renovation, we look for the team that suits the size, technical demands and quality you want.

  • Assessed on experience, craftsmanship, organisation and results on site
  • Quotations based on the same technical starting points, so you can compare them
  • You choose the contractor yourself, with more knowledge and confidence
For clients

Knowing who you bring in

An alteration is a significant investment. You want to know who will do the work, what it will cost and who will help you if questions or problems arise.

We know both the drawing board and the building site. From that experience, and with the Aboss Bouwsterren network, we assess which contractors and building teams suit your project.

What we check for you
  • Which experience and which specialists your project needs
  • Which size and star rating suit the job
  • Whether the team is available and can handle your project
  • Whether the price offered matches the work and the desired quality
  • Which drawings, calculations, permits and checks are needed

In the end you choose the contractor yourself. We make sure you make that choice with more knowledge and confidence.

See our contractor partners
No anonymous price war

A suitable contractor rather than the lowest price

On open job platforms it is often about responding quickly and comparing prices. We look at your project first and only then at who can carry it out.

Open job platform

Choosing on profiles and reviews

  • Quick responses and prices side by side
  • The platform does not know your structure or existing home
  • The work is not checked by default
  • There is no project-specific warranty by default
Through Amstelada and Aboss Bouwsterren

Choosing on project, team and agreements

  • Your project is first reviewed technically
  • The team suits the size, technical demands and quality
  • Quotations are based on the same drawings and starting points
  • Construction can be supported technically
From first plan to completion

How we can support you

You know in advance which work will be done, which checks take place and what the costs are.

01 / Preparation

A plan that can be built

  • Building design and drawings
  • Structural calculations and structural drawings
  • Guidance with the environmental permit
02 / Choosing a contractor

A team that suits your project

  • Selecting a suitable contractor through the Aboss Bouwsterren network
  • Comparison and technical assessment of quotations
03 / Construction and completion

In control during construction

  • Site checks at agreed moments
  • Recording changes and additional work
  • Assessment of snagging items
  • Technical support in case of a disagreement
  • Arranging specialist legal assistance when needed
Warranties in writing

A verbal promise is not enough

The stars describe the proven level of the building team. The contract and the warranty agreements describe your actual rights.

Recorded in writing per project
  • Who gives the warranty
  • Which work and building parts it covers
  • How long the warranty applies
  • Which conditions and maintenance requirements apply
  • How a defect is reported, investigated and repaired

Which warranty applies depends on the project and on the party carrying out the work. A warranty only counts if it is recorded in writing before construction starts.

Technical and legal support

A stronger position with a good file

If things become unclear

For questions about construction, payment, delays, additional work or completion, we help record the technical facts, drawings, photos and agreements clearly. Where needed, specialist legal support can be arranged.

For contractors and building teams

Build with the Aboss Bouwsterren network

The network grows with reliable contractors, specialist tradespeople and complete building teams: people who build carefully, keep their agreements and are proud of the result. The tradespeople and teams have backgrounds in countries including the Netherlands, Germany, Ireland, Australia, Poland, Ukraine, Turkey, Morocco and Russia, with one shared requirement: quality.

No complicated bidding platform and no constant fight for the lowest price. If your experience, capacity, service area and availability match a request, we put you directly in touch with the client.

  1. Show who you are

    Send your company name and registration details, service area and availability, specialisms and team composition, the experience of the responsible tradespeople, photos and descriptions of completed projects, at least two verifiable references and your insurance details.

  2. Assessment of your team

    We check whether your organisation, experience and quality match the requirements and the projects people are being sought for. After the first selection, your team gets the status "Aboss Selected – assessment in progress".

  3. A suitable project opportunity

    When there is a suitable request, we introduce your team to the client. The assignment, price, schedule and responsibilities are recorded in writing.

  4. Your work is assessed

    During and after the project we look at workmanship, communication, schedule, completion and client satisfaction.

  5. Good work opens new doors

    After an excellent result your team can be rated and recommended again. Your position in the network grows with proven performance.

Support for building partners

You build, we arrange the technical basis

We offer opportunities. Your work decides how far you grow.

Depending on the agreed cooperation
  • Building drawings and technical details
  • Structural calculations
  • Practical consultation on buildability
  • Help with quotations, work descriptions and schedules
  • Recording changes and additional work
  • Technical support in a dispute and a clear project file
  • Legal and contractual support
Contractors FAQ

Frequently asked questions

Does Amstelada choose the contractor for me?

No. We assess which building teams suit your project and explain quotations technically. You choose the contractor yourself.

What do a contractor's stars mean?

The Aboss Bouwsterren show the proven level and the size of project a building team can handle, from 1 star for individual jobs to 9 stars for international prestige projects. Your actual rights are set out in the contract and the warranty agreements. See the star system

How do I register my building company?

Send your company details, service area, specialisms, completed projects, at least two verifiable references and your insurance details to info@aboss.nl. After a first assessment, your team can be put forward for suitable projects.

Explore further

The Aboss Bouwsterren system is a rating and network programme of Aboss Bouwadvies. Amstelada Architecten takes care of the design, the technical development and the guidance of your project from Amstelveen.