Why choose Avenir Renovations?
Well-chosen joinery for comfort and property value
Poorly adapted joinery goes unnoticed until the day it becomes a nuisance. Well-designed joinery improves the usability of rooms, the insulation of the home, and its overall appearance.
Poorly utilized spaces
A door that opens the wrong way, a closet that takes up half a hallway, a lost under-stair space. In the narrow houses of the center and compact apartments, these details weigh heavily. A sliding door, custom storage, or a better-designed staircase can make square meters useful without pushing a single wall.
Insufficient thermal and acoustic insulation
Single glazing, double glazing from the eighties, worn seals, deformed frames: comfort is felt from the first cold days, and street noise remains present in the bedrooms. High-performance windows, with acoustic laminated glazing on the street side when needed, change the quality of sleep as much as the heating bill. They also count towards the EPC label of the home.
An appearance that dates the house
Yellowed frames, a tired front door, or mismatched interior doors age an entire interior. In the historic center, the challenge is different: to respect the original divisions and profiles when the building is listed in the architectural heritage inventory while improving performance.
Our joinery services in Leuven
Exterior and interior joinery or repairs: we work on both old houses and new homes.
Why entrust your joinery to Avenir Renovations in Leuven?
A poorly installed high-end window will insulate less effectively than a standard window installed correctly. Installation accounts for half of the performance.
Each opening is measured on-site, with checks on plumb, the condition of supports and surrounding masonry. We also check the ventilation of the room: a more airtight home needs well-thought-out ventilation to avoid condensation.
PVC for excellent performance-price ratio, aluminum for large spans and slim profiles, wood for character and old buildings. On the interior side: solid wood, veneered or lacquered panels, matte or satin finishes according to the desired style.
We present the options with their respective advantages, without pushing one material over another.
Air and water-tight sealing, fixings suited to the support, clean interior joints. The site is protected, and most frame replacements are done piece by piece, without leaving the house open for more than a day.
What is the price of carpentry work in Leuven?
Material, dimensions, glazing, and interior finishes: these are what determine the price of carpentry. Our page on the price of window installation and the one on the price of door installation detail the items. Prices include VAT at 6%, the reduced rate applicable for the renovation of a dwelling over ten years old.
| Type of work | Factors affecting the price | Indicative price including VAT |
| Double glazed PVC frame (standard window installed) | Dimensions, type of opening, color | 550 to 950 € / unit |
| Aluminum or wood frame (standard window installed) | Wood type or profile, finish | 850 to 1,500 € / unit |
| Insulated front door installed | Material, multi-point lock, glazing | 1,800 to 4,500 € / unit |
| Sliding glass door installed | Width, threshold, number of panels | 2,800 to 7,000 € / unit |
| Interior door installed with frame | Solid, glazed, or sliding door | 350 to 900 € / unit |
| Custom interior staircase | Shape, wood type, railing | 4,000 to 12,000 € |
| Integrated closet or bookshelf | Length, facades, equipment | 800 to 1,600 € / linear meter |
During our visit, we measure each opening and check the condition of the surrounding masonry. The estimation follows, opening by opening, so you can prioritize.
Example: for a two-bedroom apartment in Leuven, replacing six PVC windows, the living room patio door, and four interior doors often costs between 8,000 and 12,000 euros including VAT.
Procedures and grants for your joinery in Leuven in 2026
Permits for exterior joinery
Changing windows or a front door without altering the openings or the appearance of the facade is usually done without a permit. A new design on the street side, a different color, or a different material on a building listed in the heritage inventory requires prior verification. This is done before ordering.
The Flemish grant for glazing
Since March 1, 2026, Mijn VerbouwPremie for glazing is only accessible to income categories 3 and 4, the most modest. Interior joinery, stairs, and storage are not subsidized. Regardless of their income category, homeowners pay a VAT of 6% when the house is over ten years old.
In buildings and rentals
In co-ownership, the regulations may impose the color and model of the frames visible from the outside. For a rented property, joinery must meet quality standards: a window that no longer closes or an insecure front door can pose problems during an inspection.
The details that make the difference
The material matters less than we think
With equal glazing, PVC, wood, and aluminum now achieve very good performance. PVC offers the best performance-price ratio, wood has charm but requires regular maintenance, and aluminum allows for the thinnest profiles. The glazing and the quality of installation make the real difference.
The interior finishes after installation
A new frame requires clean joints on the inside: repair of the ceiling around the opening, a new window sill in stone, wood, or composite material, finishing joints. These details are included in the estimate to avoid leaving work to be done after the carpenter's visit.
Matching interior doors
When renovating several rooms, harmonizing the doors, baseboards, and frames immediately gives more unity to the house. A consistent finish, the same handle height, and colors that match the floors are chosen.
Frequently asked questions about joinery in Leuven
What entrance door for a town house?
A solid wood door, with a glazed transom and ironwork, best respects the character of these facades. Current models can replicate the original design while incorporating insulation, a multi-point lock, and a watertight threshold. For a listed building, the design is approved before manufacturing.
Should we replace or restore old wooden frames?
If the wood is sound and the facade has character, restoration with new, more efficient glazing is sometimes possible. If the wood is rotten or the profiles too weak for double glazing, replacing them with new frames close to the original design is more reasonable.
What is the lead time for custom joinery?
Generally, expect six to ten weeks of manufacturing for frames or an entrance door, a little less for standard interior doors. Installation then takes one to three days for a complete house.
Do new windows reduce street noise?
Yes, significantly compared to single glazing or worn seals. Along a roadway or railway, acoustic laminated glazing and careful sealing further enhance quietness, especially in bedrooms.
More silence, less draft
Well-installed frames are felt from the first night: less street noise, no more cold wall sensation near the windows. The savings are then seen on the heating bill.
Make an appointment for a free technical visit: an advisor will contact you within two days.
Agency Avenir
Rénovations
for Installation of joinery in Leuven
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
