Window frames in Delft
From the 1930s streets of Hof van Delft to the residential courts of Tanthof: Soleca advises at your home, tells you whether a building notification is enough, and fits with its own tradespeople.
We assess every opening in Delft on site before anything goes into production.
Triple glazing comes as standard on new frames. Where it does not suit the opening, we consider HR++.
The project photos on this page come from our own work in Delft. From Hoogvliet we travel via the A4.
We tell you up front which route is likely to apply and where to check it with the municipality.
Living in Delft
Delft is more than its canals. The historic centre has been a nationally protected townscape since 1976, and the city has around 1,500 protected monuments. Around it lie neighbourhoods from very different periods: the workers’ houses of around 1900 in the Westerkwartier, the middle-class district of Hof van Delft, built largely between 1928 and 1931, the post-war expansion of Voorhof and Buitenhof, and from 1975 the residential courts of Tanthof.
The year of construction does not automatically dictate the solution. It does tell us what to look at more closely during the survey: the condition of the existing frame, cold draughts at the glazing, ventilation, how the frame meets the brickwork, and the appearance of the façade as a whole. According to the municipal housing monitor, Delft has more than 54,500 homes, many of them apartments. If you live in an apartment, we first establish whether the frames belong to you or to the owners’ association (VvE).
Westerkwartier · Hof van Delft · Wippolder
Around 1900 to the 1930s
Around Hof van Delftlaan stand 1930s homes with bay windows, small balconies and front gardens; in the Westerkwartier, small workers’ houses from around 1900. Transom lights, glazing bars and the depth of the frame define the façade here. We discuss for each opening whether a uPVC profile can follow that appearance, and say so plainly when another material suits it better.
Voorhof · Buitenhof · Voordijkshoorn
Post-war, to the late 1960s
Voorhof was complete in 1963, with repeated housing clusters and tower blocks set in greenery; Buitenhof was almost finished by 1968. Voordijkshoorn has post-war family homes and low-rise flats. Many homes in these neighbourhoods are apartments within an owners’ association. In family homes, repeated window divisions make a coherent plan for the whole façade straightforward.
Tanthof-West · Tanthof-Oost
1975 to the mid-1980s
Tanthof-West was built from 1975 and largely complete by 1986; Tanthof-Oost followed from 1979 as a winding ‘cauliflower’ layout. More than half the homes in Tanthof-West are family houses. Here we assess the condition of frame and glazing, then match colour and layout to the rest of the block so the terrace stays one whole.
Advice per opening
During the appointment we look at more than the exterior. We discuss room by room how each window is used, where ventilation is needed, and whether noise, sun or security deserve extra attention. We then take final measurements, and you receive a quotation specifying the profile, glazing, operation and installation.
Soleca works largely with the Aluplast Ideal 7000 NL profile, and 42 mm HR+++ glazing is our standard on new frames. Every RAL-certified colour is available, and locks and hardware are supplied to SKG** as standard; SKG*** is available for a small surcharge.
See every option for window framesTriple glazing and a properly fitted profile limit heat loss and cold draughts at the window.
We look at where a tilt-and-turn window, ventilation grille or insect screen is practical.
Colour, texture and window division are matched to the home as a single whole.
Windows and doors within easy reach get appropriate attention to locks and hardware.
Work by Soleca in Delft
The first three photos were taken on our own job in Delft: fitting from the scaffolding and the finished result. They are followed by other work by our installers across South Holland — never stock imagery.
Practical matters
The municipality of Delft and RVO always remain the authority. Below is what matters for a homeowner in Delft, and where to check the current conditions.
Delft uses a building notification (bouwmelding). If you replace frames at the front, or in a side wall facing the street, no permit is needed as long as the opening stays the same size, the frames, glazing and panels keep the same appearance as the rest of the building, and you do not swap glass for panels or the other way round. You report the plan online in advance, inform your neighbours, and can then start. The notification is free. At the side or rear, a permit is usually not required.
The notification does not apply to monuments, buildings of cultural-historical value, or buildings in a protected townscape or other valued area. Delft has four nationally protected townscapes: the city centre, the Nieuwe Plantage, the Agnetapark and TU-Noord. There an environmental permit is always required, and the Delft monument guidelines (Uitvoeringsrichtlijnen Monumenten Delft) do not allow uPVC frames. If you live there, discuss your plan with the municipality in a preliminary consultation first.
We assess what changes to the façade during the survey, but the municipality decides. The municipal notification map (Kaart Bouwmelding) shows which area your address falls in.
Insulating glazing may qualify for the national ISDE grant, subject to conditions, from 3 m² of glass. If you replace the frames as well, triple glazing qualifies for the higher amount. RVO sets the current requirements and amounts.
The municipality of Delft also runs its own insulation grant, which includes HR++ and triple glazing. It is intended for homes built before 1992 with an energy label of D to G and a WOZ value of up to €477,000. The municipality also sets requirements for the company carrying out the work, such as membership of Natuurvriendelijk isoleren and a recognised quality mark. A separate scheme applies to the Multatulibuurt in Delft-West, with a free tailored plan from the advisory firm Endule.
The Regional Energy Desk for Delft lists every scheme, including the Warmtefonds energy-saving loan. Soleca supplies the product and insulation data an application may require, but cannot guarantee that a grant will be awarded.
Our process
One team stays responsible for advice, measuring, preparation and fitting.
After your enquiry we visit you at home. We assess the situation, discuss your wishes and prepare a clear, tailored quote.
Happy with it? You confirm the quote easily and we plan the next stage of your project together.
During the technical survey we measure everything precisely and produce the drawings, so every part is made to fit exactly.
Our own installation teams fit everything expertly, finish the details cleanly and leave your home tidy.
4.5 out of 5 from 100+ Google reviews
Source: Google Reviews · some reviews translated
We had window frames installed by Soleca. We had pleasant contact with Mathis and then had the pleasure of welcoming Willem and Willem to our home for the installation. I would definitely recommend the guys!
Milan Breedveld
After searching for weeks for a company willing to install our window frames at a reasonable price, we finally ended up at Soleca. It was well worth the wait! I was skeptical due to previous experiences with contractors, but that proved unfounded. The window frames were installed very neatly and quickly. I recommend this company to everyone!
Roan Dronrijp
We had window frames and sliding doors installed for our new home in Hellevoetsluis and are extremely satisfied! Everything fits perfectly and is beautifully finished inside. Ultimately, we're very happy we chose Camille and Soleca!
Tony Kopp
Good experiences with the installation of triple glazing and new frames, and smooth communication.
Jan de Wit
From a quick appointment with good and clear advice to the installation of the window frames. Everything went flawlessly and what craftsmanship! Top service!
Mohammed el Fizazi
We had all the window frames and the front door in our home replaced with uPVC. Everything is beautifully finished, and the installers even hung the curtain rails for us. Very happy, definitely recommended!
Beyza Ustübi
They come by to inspect everything thoroughly, ensuring the quote is accurate from the start and preventing any problems later. Delivery and installation went smoothly and as agreed. The installers were knowledgeable and friendly. All for a reasonable price. Highly recommended.
Marian van der Helm
Good, fast, and neat service. And a super competitive price!
Ger
I received good help from Soleca; there were a few points for improvement, but they resolved these issues skillfully and quickly. All in all, very satisfied.
Dante Munoz
Window frames Delft
Your home always leads the decision. Question not covered? Call 085 080 5117.
Soleca fits uPVC window frames across Delft’s residential neighbourhoods, including Hof van Delft, Wippolder, Vrijenban, Voordijkshoorn, Voorhof, Buitenhof and Tanthof. Monuments and buildings in the city centre, the Nieuwe Plantage, the Agnetapark and TU-Noord fall under the Delft monument guidelines, which do not allow uPVC frames. There we refer you to the municipality first.
The centre has been a nationally protected townscape since 1976. Changes to the outside of a building there usually need an environmental permit, even if the building is not a monument. The Delft monument guidelines call for keeping the existing materials and façade, and do not allow uPVC frames, windows or doors. To improve insulation, they point to thin insulating glass that fits the existing windows. If you have plans, contact the municipality’s monument advisers first.
Outside the protected and valued areas, often yes. The opening stays the same size, the frames, glazing and panels keep the same appearance as the rest of the building, and glass and panels do not swap places. You report the plan online in advance and inform your neighbours; the notification is free. If you want to deviate, for example by enlarging the opening or replacing glass with a panel, you need an environmental permit.
Insulating glazing may qualify for the national ISDE grant, subject to conditions; if you also replace the frames, triple glazing qualifies for the higher amount. The municipality of Delft also runs an insulation grant for homes built before 1992 with an energy label of D to G, with requirements for both the home and the company carrying out the work. Check those conditions before you commission anything. Soleca supplies the product data for your application, but cannot guarantee that a grant will be awarded.
That depends on the deed of division and the rules of your owners’ association (VvE). In neighbourhoods such as Voorhof and Buitenhof many homes are apartments, and frames there are often a shared element. For the municipal insulation grant you may apply as an individual owner if the deed of division and the model regulations allow it. We establish who decides before we prepare a quotation.
The process starts with advice on site, with no obligation. Once you agree, the final survey follows and we measure every opening precisely. If your plan falls under the building notification, it must be filed before work starts; we build that into the schedule. The frames are made to size and fitted by Soleca's own installers.
Sources for the local informationFacts about permits, schemes and construction periods have been checked against official and public sources.
Local photo: Michielverbeek · CC BY-SA 4.0
Advice in Delft
We assess the openings, glazing and appearance at your home, then put together a clear, tailored quotation.
