Obtained offer for windows surprisingly

Hello dear experts,

We are expected to start building with an architectural firm in April. Trades will be tendered and awarded individually. However, since I have already done some research and obtained offers myself, I am now a bit confused. According to the cost calculation from the architect, all windows including roller shutters (12x floor-to-ceiling, 4x normal) and the front door including delivery and installation should cost just under 38k. So far so good.

Here is an excerpt:

Window door elements according to planning Deliver and
install according to RAL specifications*
Base material plastic.
CE mark, resistance to wind load:
Class C4, air permeability: 4,
Thermal transmittance coefficient: max. 0.98 W/m²K
Rain resistance: E900, design:
Basic safety, color inside: white,
Color outside: white, glass: 4-14-4-14-4,
Ug max. 0.6 W/m²K, gW 51%, Rw 32 dB,
Lt 72%, tilt-turn,
incl. misuse lock, window handle
Mawex white, glazing bead style:
standard, spacer: TGI, white, left rebate: 6.5 mm, right rebate: 6.5 mm,
Frame drainage: forward* Exte
Expert XT roller shutter box,
Box height: 220 mm, inspection flap: bottom,
Armor type: plastic, armor color: white,
Drive F1: motor, cable length: 3000 mm, RF
Guide rail: plaster rail inside: aluminum angle,
doubling up with XPS to raw masonry.
Plaster rail outside: aluminum angle, doubling
up with XPS to raw masonry. Oximo RTS
Radio motor* Exterior window sills:
Padang white, 200 mm projection, polished,
incl. rainwater grooves bottom longitudinal and
top crosswise 2x, incl. EPDM foil /
Sealing to parapet or base point
Set-in profile*

Window elements according to planning Deliver and
install according to RAL specifications*
Base material plastic*
CE mark, resistance to wind load:
Class C4, air permeability: 4,
Thermal transmittance coefficient: max. 0.98 W/m²K
Rain resistance: E900, design:
Basic safety, color inside: white,
Color outside: white, glass: 4-14-4-14-4,
Ug max. 0.6 W/m²K, gW 51%, Rw 32 dB,
Lt 72%, tilt-turn,
incl. misuse lock, window handle
Mawex white, glazing bead style:
standard, spacer: TGI, white, left rebate: 6.5 mm, right rebate: 6.5 mm,
Frame drainage: forward* Exte
Expert XT roller shutter box,
Box height: 220 mm, inspection flap: bottom,
Armor type: plastic, armor color: white,
Drive F1: motor, cable length: 3000 mm, RF
Guide rail: plaster rail inside: aluminum angle,
doubling up with XPS to raw masonry.
Plaster rail outside: aluminum angle, doubling
up with XPS to raw masonry. Oximo RTS
Radio motor* Exterior window sills:
Padang white, 200 mm projection, polished,
incl. rainwater grooves bottom longitudinal and
top crosswise 2x, incl. EPDM foil /
Sealing to parapet or base point
Set-in profile* Interior window sills:
Jura marble 250 mm*

Now I have obtained 2 offers that are very close in price at just under 23k including front door and installation. About which of course I am not complaining. These even have rc1, are lockable, anthracite outside, and roller shutters are made of aluminum.

Here is an excerpt from the offer:

Pos. 1: WINDOW PVC 2 LEAF TILT/TURN
External dimensions: 1370 x 2125
Quantity Price Value
10 x =
630.67
Discount 25.0 %
473.00 4730.00
Technology: REHAU - SYNEGO®
Color: INSIDE: WHITE, outside: ANTHRACITE
Glass: U0.6S 4-16-4-14-4 WARM EDGE
Seal: BLACK
Frame: 72.MD (2.3)
Sash: Z59
Fitting: WINKHAUS ACTIV RC1
Window sill connection: +30 mm
Window handle: LOCKABLE
Window handle color: WHITE
Hinge color: WHITE
Locking scheme: RC1N configuration

Pos. 2: ROLLER SHUTTER BOX FOR POS. 1.
External dimensions: 1370 x 2345
Quantity Price Value
10 x =
442.84
Discount 25.0 %
332.13 3321.30
Technology: TP2000K
BOX PVC WHITE
BOX HEIGHT: 220 MM
BOX PREPARED FOR PLASTER WORK
GUIDES: ANTHRACITE
ROLLER SHUTTER ARMOR: Aluminum PA39 ANTHRACITE
ELECTRIC DRIVE PORTOS WITHOUT
PRESSURE SWITCH

I have not talked to the architect yet but a price range of 15k just for the windows is already huge in a positive sense.

Was it similar for you?

Hello,

I see something about a 25% discount in the offer. When I calculate the discount, I come to an advantage of €7,000. Then your architect also wants to see something and always calculates conservatively.

Are all other things included like installation? Is it a new company or an established one?

I also wonder why you bother him at work? Don’t you have any trust?

You first have to compare whether these are actually windows with the same properties in terms of sound insulation, thermal insulation, etc. Then, for example, I don’t see anything about interior and exterior window sills, which are included in the first offer. If everything is actually the same or even better, then just be happy. Most of the time, the deviations are rather upward than downward compared to the architect’s cost estimate.

.. and I also do not read anything about installation in the second offer.

Hello,

Here is an excerpt from my price list.

Windows come directly from Poland from Veka without intermediaries. Veka profile Alphaline 90 MD

Floor-to-ceiling windows 1230*2100, in RAL 7016, with RC 2 and pressure lens in the handle

348€ net

Aluminum roller shutters, everything like with you

225€ net plus 39€ net for the motor

Installation is extra. On average, that is about 100€ net.

Personally, I would no longer install any windows below RC 2. Take a look at how few locking points a normal window and RC1 have.

Furthermore, I would also avoid lockable handles; out of habit, people always leave the key inside anyway, and they also look bad.

Hello,

Here is an excerpt from my price list.

The windows come directly from Poland from Veka without intermediaries. Profile Alphaline 90 MD

Floor-to-ceiling windows 1230*2100, in RAL 7016, with RC 2 and pressure lens in the handle

€348 net

Roller shutters made of aluminum, everything like yours

€225 net plus €39 net for the motor

Installation costs are added. On average, about €100 net.

Personally, I wouldn’t install windows below RC 2 anymore. Have a look at how few locking points a normal window and RC1 have.

Furthermore, I wouldn’t take lockable handles either, as the key is habitually always left in the lock, and they don’t look good anyway.

Hello, and who installs them for you? A German company or does a company from Poland come?

What happens in case of complaints?