A buyer of balcony glazing asks whether the price is shown before a quote, how long the warranty is, whether the purchase can be paid interest-free and whether the seller comes to look at the balcony free of charge. These decide 50 points out of a hundred.
nika.fi · Nika Lasitus Oy, Lahti; balcony and terrace glazing and railings
58.9SCORE
Price is shown before the quote100
Product warranty50
Interest-free payment period0
Free planning visit0
Basic metrics · 63.7
Digital quality66
Transparency62
Reachability68
AI quality score58
+ The purchasing process is described in four stages: contact, design and 3D visualisations, cost estimate and installation, and the delivery time is at least six weeks.
Basic metrics: 63.7, rank 4 · ▲ 3 places
– Interest-free payment period: An interest-free payment period is not mentioned on Nika's pricing page or financing page, only the interest rate OP Prime + 6.95% and a monthly instalment of 50 €.
keraplast.fi · Kera Group Oy, Keraplast brand; consumer patio and sliding glazing including installation
46.3SCORE
Price is shown before the quote0
Product warranty50
Interest-free payment period8
Free planning visit0
Basic metrics · 77.0
Digital quality83
Transparency85
Reachability60
AI quality score73
+ You can get the price yourself: the site has a Calculate price calculator for your own dimensions and an online shop for standard-size glazing, so the price is clear without a separate quote request.
Basic metrics: 77.0, rank 1 · ▼ 1 place
– Price shown before quote: The price was not found on the pages checked: front page, financing, warranty and sales terms, and price lists and brochures.
lumon.com · Lumon Suomi Oy, Kouvola; the leading balcony and terrace glazing company in Finland and worldwide, over 45 years of experience and numerous branches
46.1SCORE
Price is shown before the quote0
Product warranty0
Interest-free payment period50
Free planning visit100
Basic metrics · 70.2
Digital quality74
Transparency60
Reachability82
AI quality score67
+ The purchase process is described clearly in four steps: free planning visit, measurement and 3D drawing, quotation, and installation mostly in one day.
Basic metrics: 70.2, rank 2 · ▼ 1 place
– Product warranty: The length of the warranty is not stated on the company's warranty page or in the frequently asked questions. The page only speaks of an extensive warranty; the terms are a downloadable file.
alutec.fi · Alutec Oy, a domestic manufacturer of balcony and patio glazing and aluminium structures
45.2SCORE
Price is shown before the quote0
Product warranty50
Interest-free payment period0
Free planning visit100
Basic metrics · 64.5
Digital quality77
Transparency65
Reachability52
AI quality score58
+ The purchase process is clearly described: contact, glazing design and quote, manufacture and installation, and installation takes one to three days.
Basic metrics: 64.5, rank 3 · ▼ 1 place
– Price shown before a quote: The price was not found on the checked pages: front page, balcony glazing, Alutec 3 product page and design visit booking.
lumico.fi · Lumico Oy, aluminium glass systems: balcony and terrace glazing
36.3SCORE
Price is shown before the quote0
Product warranty20
Interest-free payment period0
Free planning visit100
Basic metrics · 55.0
Digital quality64
Transparency45
Reachability60
AI quality score51
+ The glazing systems are described in detail: aluminium-framed and frameless balcony glazing from tempered Saint Gobain glass, and every project is dimensioned individually.
Basic metrics: 55.0, rank 5 · no change
– Price shown before the quote: The price was not found on the balcony glazing page, where the quote is prepared after measurement.
riikku.fi · Riikku Rakenteet Oy, nationwide supplier of balcony glazing and balcony railings
26.6SCORE
Price is shown before the quote0
Product warranty0
Interest-free payment period0
Free planning visit0
Basic metrics · 53.1
Digital quality76
Transparency38
Reachability45
AI quality score51
+ Operating company and business ID (Y-tunnus) shown on the site: Riikku Rakenteet Oy, business ID (Y-tunnus) 1994198-6.
Basic metrics: 53.1, rank 6 · no change
– Price shown before quote: The price was not found on Riikun's balcony glazing page or the maintenance page, a quote is requested for the housing company.
QUESTIONCan I find out roughly what glazing costs before I request a quote?
Whether the company's own page states a price range or starting price for balcony glazing.
Price range or starting price on the page = 100 points, price not stated and quotation required = 0.
20 p
Product warranty
QUESTIONHow long is the warranty on glazing products?
Warranty on material and manufacturing defects of the glazing product, in years.
10 years or more = 100 points, 0 years = 0, in between directly proportional.
14 p
Interest-free payment period
QUESTIONCan I pay for the glazing later without interest?
Length of the interest-free payment period of the financing in months.
12 months or more = 100 points, no interest-free period = 0, directly proportional in between.
10 p
Free planning visit
QUESTIONWill the salesperson measure the balcony free of charge?
Whether the planning or measurement visit is free of charge according to the company's page.
Free visit = 100 points, paid or not mentioned = 0.
6 p
Basic metrics
Digital quality, transparency, reachability and AI quality score
Basic metrics × 0.5
50 p
Notes
The comparison includes six balcony glazing suppliers. Riikku sells glazing mainly to housing companies and construction firms, so its consumer terms were not found on the company's pages.
Points are based only on information published on the companies' own websites. Information that could not be read from the site receives zero points for that buying motive, and the reason is shown for the company.
Prices depend on the dimensions of the balcony, so the comparison measures whether the company says anything about the price before a quote, not who is the cheapest.
About this comparison
We scored 6 balcony glazing suppliers on 19 metrics: technical quality, transparency, reachability and AI quality. The most important question: is a price estimate or price calculator visible on the site before you submit a quote request?
Balcony glazing is almost always made to order, so the final price is usually revealed only after a measurement visit and a quote. What decides in the comparison is therefore how openly the supplier states, already on its website, how the price is formed, the warranty, the installation process and the technical differences between glazing systems. We scored six balcony and terrace glazing suppliers on this transparency axis.
What transparency means in this category
Price estimate, price calculator or price list publicly displayed (25), installation and delivery process described (20), warranties and their terms stated (20), glazing systems and technical data described (15), business ID (Y-tunnus) displayed (10), references or independent review displayed (10)
How to read the comparison correctly: Half of the points come from buyer's questions, i.e. things the buyer finds out before deciding. The other half measures how openly the company publishes its prices, terms and contact details. Clear differences in points indicate a genuine difference: one tells you the price immediately, another only after logging in. Close scores should not be read as a ranking order, because every measurement has a margin of variation. The measurement accuracy and the full calculation formula are open in the methodology.
Customer experience is brought into the assessment separately. We also collect customer feedback and customer experiences about companies through separate surveys. The survey results will be added to the overall assessment later.
Balcony glazing is almost always priced case by case, so most suppliers give a price only after a measuring visit and a quote. A public price estimate or price calculator is a rare but valuable signal for the buyer.
A housing company's balcony glazing usually requires a building permit or a notification of works, so the supplier's description of the installation and permit process says a lot about how comprehensive the service is.
Glazing systems differ from one another (framed or frameless, sliding or folding), and the length of the warranty varies by supplier, so transparency of technical information and warranty terms is decisive in the comparison.
Comparison guide
What to consider in the comparison
The price is almost always specific to the site: balcony dimensions, number of panes, system and installation complexity affect the outcome, so a ready price tag is rarely shown.
Some suppliers offer a price calculator or web shop for made-to-size glass, so you can get an indicative price yourself without a separate quote request.
Balcony glazing in a housing company generally requires a notification of action or a building permit, and the decision is made at the general meeting, so the supplier's help with the permit process is essential.
Glazing systems differ: a framed or frameless solution, panes that slide sideways or swing inwards, and the thickness of the tempered safety glass affect use and price.
Warranty length varies by supplier, and some separate the product and installation warranties, so the terms should be checked before signing the contract.
How Suomen Paras assesses and scores
Every company is measured with the same public formula: half of the points come from buyer's questions and half from basic metrics, which have four pillars: technical quality, transparency, reachability and AI quality score. Ranking cannot be bought, and you can see the origin of each point on the company's profile. Read the full methodology →
Expert tips
Request a quote with the same specifications from several suppliers and make sure whether installation, transport and any demolition of old structures are included in the price.
Ask separately about the length of the warranty for the product and for the installation, and what the warranty covers, before you sign the contract.
Find out the housing company's permit situation and the condition of the balcony before ordering, since glazing does not replace repair of the balcony structures.
Frequently asked questions
Why is the price of balcony glazing not shown directly on websites?
Balcony glazing is made to order according to the exact dimensions of the balcony, so the final price depends on the dimensions, the number of panes and the system. Most suppliers give a price only after a measuring visit and quote, but some have an indicative price calculator.
Does balcony glazing require a permit?
Glazing a housing company's balconies usually requires a notification of action or a building permit, and the matter is decided at the general meeting. Many suppliers help with the permit process as part of the delivery.
How long does the installation take?
Glazing a single balcony is typically installed in one to three days. The delivery time from order to installation can be several weeks, because the glass is made to measure.
What is worth comparing between different suppliers?
In addition to price, compare the length and terms of the warranty, the type of glazing system (framed or frameless, sliding or pivoting), whether installation is included in the price, and how openly the supplier states these on its website.
Are you listed and would like to rank higher?
The free pre-analysis shows every item where your company loses points and which rank fixing it is enough for. The paid analysis shows what the items are and how to fix them.
Can't find your company on the list even though it should be there? Get in touch and we will include it in the next measurement round.
