Renovations
- Building an extension
- New dormers or dormer repairs
- Loft conversions
- Building or removing walls
- Suspended ceilings & finishing
Your home renovated, turnkey
We carry out all construction work, inside and out. From small jobs to complete renovations.
Fixed price up front
One point of contact
Week-by-week schedule
Guarantee on workmanship
9,4 average from our clients
400+ completed projects since 2021
5 yearsexperience in construction
400+completed projects
9,4average rating
1point of contact per project
Made-to-measure extensions
More space. More light. More living.
From foundations to handover. We build your extension complete: brickwork, flat roof, sliding door and finishing.
We delivered this extension from A to Z. Foundations and concrete poured, walls bricked up, a flat bitumen roof applied and an aluminium sliding door fitted. The result: more light, more space and a seamless connection to the existing house.
- Foundations + concrete work
- Brickwork
- Flat roof: bitumen
- Aluminium sliding door
- Plastering & finishing
- Made to measure
Would you like an extension too? Request a no-obligation quote.
Turnkey
Design, permits, construction and finishing in one contract. You never have to coordinate separate parties.
Fixed contract sum
A quotation broken down per building element. Additional work only after your written approval.
Week-by-week schedule
You know in advance which works happen in which week and when we hand over.
Guarantee and aftercare
A joint handover, a snagging list and a guarantee on the workmanship.
Gallery
Photos of our work
Unconventional design 
Our best work 
Dream work 
Golden work 
Ghost work 
Euro Mix work 
Black & white 
Royal dream work 
Memories colour work 
TV unit and bookcase wall 
Pastel crystal work 
Living room: ceiling and walls in Béton Ciré 
Walk-in shower with smoked glass 
Bathroom with double vanity and LED mirror 
Bathroom with bath and wall-hung toilet in concrete look 
Walk-in shower and double washbasin 
Tiled shower floor laid to falls with drain channel 
Bathroom with walk-in shower and tiling 
LED mirror above double washbasin 
Toilet renovation 
Bathroom with black shower screen and wooden vanity 
Wall-hung toilet with recessed niche and black radiator 
Matt black rain shower 
Industrial-style shower screen 
Recessed niche above wall-hung toilet 
Bathroom with oak vanity unit 
Tiling with recessed niche 
Walls plastered and painted 
Kitchen installed with marble-look splashback 
Facade rendering in progress: decorative render 
Exterior renovation: facade finished with decorative render 
Dormer under construction: timber frame 
Dormer with uPVC frames and cladding 
Dormer nearly finished 
Shower tiling with herringbone wall tiles and recessed niches 
Large-format floor tiles laid with a levelling system 
Marble-look ceramic feature wall 
Red wall tiles laid vertically 
Shower tiled with drain channel and wood-look wall tiles 
Ceiling plastered smooth 
Walls and ceilings plastered 
Garden work: artificial grass, fencing and canopy 
Patio paved with concrete tiles 
Made-to-measure steel door 
Made-to-measure sliding door: drawing 2920 × 2530 mm 
Made-to-measure sliding door: drawing 2940 × 2530 mm 
Made-to-measure sliding door: drawing 2950 × 2520 mm 
Double-glazed sliding door: 2950 × 2520 mm 
Bitumen roof covering renewed
Extension: foundations and concrete poured
Extension: first courses of brickwork
Extension: walls bricked up
Extension: shell with frame openings 
TV walls with slats, marble look and LED lighting 
TV wall with illuminated niches 
Bathroom entirely in Béton Ciré 
Béton Ciré wall in anthracite 
Walk-in shower in Béton Ciré
Video
Watch our work in action
Our services
From a single bathroom to an entire home
We carry out projects of every size — always with our own tradespeople and long-standing subcontractors.
Fully renovated, one contractorComplete renovation
Your entire home handled in a single project: layout, services, finishing and decoration. One point of contact and one schedule.
More about this service
Finished within 10 working daysBathroom renovation
From strip-out to the final bead of sealant. We deliver your bathroom fully waterproofed, ventilated and completely finished.
More about this service
Structural and mechanical work in oneKitchen installation
Removing a wall, relocating services, fitting the kitchen and connecting it all. Also when your kitchen supplier only delivers the units.
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More space without moving houseExtensions
A rear extension, a storey above the garage or a garden room. Planning permission included.
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Installed in a single dayDormer & roofing
A prefabricated dormer, new roof covering or a full roof renovation including insulation.
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A lower energy billEnergy upgrades
Insulation, HR++ glazing, heat pumps and ventilation. We calculate the return on each measure before you commit.
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One extra bedroomLoft conversion
From storage loft to a proper room: insulation, a fixed staircase, electrics, flooring and finishing.
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The final ten per centFinishing & plastering
Plastering, flooring, tiling, internal doors and painting. The detail a renovation is ultimately judged on.
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Your dream home, expertly deliveredNew build
From serviced plot to a turnkey home. We build detached houses and small-scale new build under a single contract.
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All construction work
Inside and out, from small jobs to complete renovations
This is the work we carry out every day. Is your job not listed? Just ask us.
Frames, doors & glazing
- Fitting uPVC window frames
- Fitting doors
- Glazing & frame installation
- Woodwork
- Made-to-measure sliding doors, uPVC or aluminium
Plastering & facades
- Interior & exterior plastering
- Facade work
- All-round plastering
Bathroom & toilet renovation
- Bathroom renovation
- Toilet renovation
- Tiling
Kitchens
- Kitchen installation
- Kitchen assembly
Stairs & woodwork
- Fitting a fixed staircase
- All woodwork
Garden & outdoor work
- Garden work
- Artificial grass & fencing
- Fitting garden fences and gates
- Verandas, canopies & carports
- Concrete types & concrete work
Electrical work
- Electrical installation
- New or upgraded consumer unit
Insulation & ceilings
- Loft insulation
- Suspended ceilings
Floors
- Floor levelling
- Flooring work
- LVT & laminate, every type of floor
- Underfloor heating
Plumbing
- Water supply pipework
- Plumbing work
Painting
- Interior & exterior painting
Roofing: bitumen
- New bitumen roofs
- Renewing bitumen roofs
- Repairing roof leaks
- Roof covering
Made-to-measure steel doors
- Fitting steel doors
- Pivot doors
- Sliding doors
- Glass colour and door model of your choice
- Custom sizes available
Extra · our craftsmanship
Decoration & Béton Ciré
Alongside all our construction work, we specialise in fine finishing. We apply Béton Ciré and Italian plaster in bathrooms, toilets, kitchens and all wet rooms, as well as on TV walls and walls with a luxury concrete-look finish.
Italian plaster Italian plaster (often also called Venetian plaster, marble stucco or stucco veneziano) is a centuries-old decorative plastering technique from Italy. It gives walls and ceilings a smooth, luxurious look resembling polished marble, with subtle colour variations and depth.
For all your decorative work, TV walls and luxury wall finishes.
- Decorative work
- Building & fitting TV walls
- Applying Béton Ciré
- Italian plaster
- Concrete-look finishes
- Wet rooms (bathroom, toilet, kitchen) in Béton Ciré / concrete look
Bathroom & toiletBéton Ciré · concrete look · tiling
WallsPlastering · Italian plaster · Béton Ciré · TV wall
DecorationDecorative work · concrete look
How we work
Five steps from first conversation to handover
A renovation is above all a matter of sequence and coordination. This is how we keep both tight.
1
Introduction
We visit, look at the situation and listen to your plans. Entirely without obligation.
2
Design & quotation
You receive a plan with drawings and a fixed contract sum, broken down per building element.
3
Scheduling
Permits, materials and tradespeople are scheduled. You get a week-by-week plan.
4
Construction
One site manager and one point of contact. A progress update every week.
5
Handover
A joint inspection, snagging cleared within two weeks, then aftercare.
Why Concord Bouw
Not ten separate parties, but one contractor who handles it
Most renovations do not run aground on technical issues but on coordination. When the tiler turns up before the plumber has started, work stops and the bill climbs.
- Our own tradespeople for carpentry, tiling and finishing. Only specialist work goes to long-standing partners.
- A building survey up front, so surprises behind the wall are known before we start.
- A weekly progress update with photos, so you know where your project stands even if you are not living there.
- A tidy site. Finishing every day with a clean workspace is standard for us.
Projects
Recently completed work
A selection of the projects we have delivered in recent years.
Complete renovation
1930s house fully renovated
A characterful 1930s house of 148 m² stripped back to the shell and rebuilt, with the original details preserved.
Haarlem · 14 weeks
Kitchen installation
Kitchen completely renewed
A kitchen rebuilt from the ground up, including pipework, tiling and made-to-measure units.
· 5 working days Bathroom renovation
Ensuite bathroom with walk-in shower
Two small rooms combined into a single 11 m² bathroom with a freestanding bath, walk-in shower and underfloor heating.
Amstelveen · 9 working days
Reviews
What our clients say about us
Our clients rate our work in the entire Netherlands. Below is a selection of the most recent responses.
9,4
Frequently asked questions
Good to know in advance
Question not listed? Give us a call — we are happy to think along, free of charge.
What exactly does a turnkey renovation mean?
Turnkey means we carry out the entire process: design, any planning permission, strip-out, structural work, services and finishing. You have one contract, one schedule and one point of contact. At handover you can move straight back in.
Do I get a fixed price up front?
Yes. After the building survey you receive a quotation with a fixed contract sum, broken down per building element. Only additional work you instruct yourself, or hidden defects that were not visible beforehand, can cause a variation. We always put those to you in writing first.
How long does a renovation take?
A bathroom is usually finished within ten working days, an extension takes eight to twelve weeks and a complete renovation twelve to twenty weeks. Your quotation comes with a weekly schedule showing the main milestones.
Do you arrange planning permission?
Yes. We check whether your plan is permit-free and otherwise take care of the drawings, structural calculations and the application to the local authority. Council fees are charged separately.
Can I stay in the house during the work?
For a bathroom, kitchen or extension that is usually perfectly possible. For a complete renovation we advise temporary alternative accommodation, because water and electricity are periodically switched off.
What guarantee do you provide?
You receive a guarantee on the workmanship. The exact period per element is stated in your quotation and in our terms and conditions. Manufacturer warranties apply to the materials supplied.
Curious what your project will cost?
Request a no-obligation quote. We visit for a building survey and send you a complete proposal with a fixed price within five working days.