Nanostone ApS Reviews 

1,502
TrustScore 4.5 out of 5

4.3

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Company details

  1. Property Maintenance
  2. Garden Center

Written by the company

Hos Nanostone er vi specialister i rensning og overfladebehandling af fliser, facade, og tag, samt tagrenderens og græspleje. Kort fortalt, de lidt sværere opgaver omkring huset udenfor. Alle vores løsninger tilbyder vi på abonnement uden binding og til en attraktiv pris, så du blot kan nyde din have og lade os gøre det sure arbejde. Læs mere om vores tilbud på www.nanostone.dk

Nanostone ApS - vi fjerner flisepest med garanti

Written by the company

Vi renser alt pænt og rydder lige så pænt op efter os
Vi renser og behandler fliser mod alger, mos og de hvide pletter (flisepest). Vi går op i at gøre et godt stykke arbejde og sikrer altid at vores kunder er tilfredse med det udførte arbejde. Dette betyder også at vi gør lige den ekstra indsats til at stille vores kunder glade og tilfredse - fx gør vi os ekstra umage i at gøre rent og rydde pænt op efter os når vi går. Hos os betyder kvalitet alt og det er det, som har gjort at vi har været på markedet som de første med ekspertise i fliserens og du kan regne med at vi er her de næste 5 og 10 år.

Tilfredshedsgaranti

Ingen photoshop - det bliver akkurat så flot som på billederne

Vi kommer ud gratis og laver de første par kvm, så du kan se at det bliver nøjagtigt som du havde håbet på og regnet med. Når du tilfreds, så starter vi rensning og imprægnering af fliserne. Det bliver som du ser på vores før og efter billeder. Det stiller vi garanti mod. Bemærk: Vi fjerner også flisepest, de små hvide pletter.

Contact info

4.3

Excellent

TrustScore 4.5 out of 5

2K reviews

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Replied to 96% of negative reviews

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4.3

All reviews

(1,502)

224 reviews in the last 12 months

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Rated 1 out of 5 stars

Had to clean mess myself. Weeds not removed by end of service.

On the 9th March Nanostone came to clean my terrace tiles. The tiles looked great but they left 40Kg of mud in the street that i had to clean myself and 30Kg of mud at the bottom of my driveway, as well as mud sprayed over 2m high on my fence, bins, walls, etc. A technician came out on 23rd of March and removed the driveway mud and tidied up the mess from the 1st guy, by this time weeds were growing back and i contacted customer services of this and requested weeds were removed prior to sand and treatment being applied. On 7th April a tech came to apply stone treatment, again i notifed services that the weeds were getting very bad and needed removed. They said if i needed additional treatment they would arrange this. On the 13th April the last employee came and applied the sand on a driveway now covered in weeds.
Nanostone offered a 500Dkk discount and have refused to clean the weeds that have grown over the past 5 weeks.
I don't want 500DKK to spend hours removing weeds from my driveway - that is why i hired nanostone.
I am completely dissatisfied with my service and the attitude that weeds grow back. Of course they grow back, but the service should take approx a week to perform, mine took 5 weeks and this is the cause of the excessive weed build up.

Kasper - the service should not have taken 5 weeks. If someone came before the sand was applied and spent 2hrs it would have been weed free again and there would not be a problem.
You seem to be stating that a 5 week service is normal and that customers should expect a large weed build up prior to the sand being applied.
Fine - the recent poor reviews for your service may increase if this is the case and you do not address customer concerns.

April 13, 2026
Unprompted review
Nanostone ApS logo

Reply from Nanostone ApS

Dear Paul.

Thank you for your review.

Before the work began, the areas in question were in a condition with significant dirt, mud, and natural growth build-up. Our service improved the overall appearance considerably, which we are pleased to note you initially acknowledged.

From the outset, the scope of the work and process were clearly communicated, including that outdoor surfaces are continuously affected by weather conditions and natural regrowth such as weeds. The extended timeline was due to scheduling and operational factors during a busy period, which can occasionally occur, but this does not change the nature or quality of the treatment provided.

Regarding the clean-up, we took your feedback seriously and arranged a follow-up visit to address the areas you mentioned.

As for the weeds, regrowth over several weeks is unavoidable, and ongoing maintenance is required after treatment. We also offered a compensation of 500 DKK as a fair resolution, which we believe reflects both the circumstances and the service delivered.

We regret that you are dissatisfied, but we cannot accept responsibility for factors outside the agreed service and natural conditions beyond our control.

Best regards
Kasper - Nanostone

Rated 1 out of 5 stars

Don’t use this company

Don’t use this company. Paid for service i did not get. And they ruined my wood stairs. It took them 3 times coming out before they could even get the terrace cleaned. I paid for the three step service but did the last step myself bc they were too busy to come back but they still charged the full amount. They spilled chemical sealant all down my wood stairs and all the way to the parking lot. Sent someone to fix it and now the stairs look terrible.

July 13, 2024
Unprompted review
Nanostone ApS logo

Reply from Nanostone ApS

Hi LKP,

Thank you for sharing your experience with us. We are sorry to hear that the process did not meet your expectations. I have previously reached out for additional information to investigate the matter further and to help resolve the issue, but I have not yet received a response.

If you wish to provide more details about this matter, our team are available to assist.

Best regards,
Ida - Nanostone

Rated 1 out of 5 stars

Terrible work, bad service

Terrible work. Ended up with a very sticky wooden patio, with dirt smeared under the stickiness due to poor pre-cleaning. It was evidently a result of the company's own poor judgement when recommending the 'impregnation' (imprægnering) solution for our back patio, but when asked how this could be remedied they would not do anything about it. We can now pay someone else to redo the entire thing. Cannot recommend this company based on this service.

June 14, 2024
Unprompted review
Rated 5 out of 5 stars

Prompt and efficient

Prompt, efficient service. The treatment was foam pressure sprayed and would therefore dissolve. They take a photo so you can see that the tiles have been treated. Treatment has kept my tiles free of any green residue.

April 18, 2024
Unprompted review
Nanostone ApS logo

Reply from Nanostone ApS

Dear Samantha,

Thank you very much for your kindly review.

We are happy to hear, that you liked our service treatment on your tiles.
We cannot wait to visit you again in the nearest future.

Best regards
Nanostone

Rated 1 out of 5 stars

In May this year Nanostone came to our…

In May this year Nanostone came to our Summerhouse to clean & treat our driveway and terrasse. He didnt do a trial patch on the terrasse and he left before my husband had time to approve the work. (the terrasse was still wet) The driveway looked good, but he never came back to do the final treatment. which according to Nanostone should be carried out 7 days after the clean. After drying out - the terrasse was a mess, I have cleaned it myself better with the high pressure washer in recent years. I called to report it and sent photos to Nanostone - they thought it looked OK. After many telephone conversations I received an Invoice from Nanostone AND a Kredit note for the same amount. Then I started to get calls from the guy who did the work -he wanted to control his work - I had already informed them & Nanostone that our summerhouse was rented out until the end of August and nothing could be done until then. I just had several calls today with a new offer!!!! For an extra 5000kr they will come and do the treatment of the terrace and the driveway - why would I want to oil a terrace to cover up their messy work!!! I said no thanks - then I was offered a free service next year if I paid the 5000kr. (but after reading reviews on here it seems like you cant get out of the service contract and the way Nanostone work I dont trust them) Apparently they have also deleted their satisfaction guarantee. All the time they refer to their sales rules. I have offered to pay the the work done on the driveway - but it seems you just have to accept that what they say goes, I cant pay for the driveway without paying for the terrace -so if you´re not satisfied with their work - Tough! I wouldn't recommend Nanostone for Wooden surfaces. They will do anything to try to get out of their responsibility of doing a proper job. I had read the "handelsbetingelse" on the offer - maybe I am stupid but I thought a professional treatment/clean would look better than and ordinary pressure clean.
Danmarks bedste garanti og kundeservice - is states on the bottom of my offer!! I dont think so!

May 23, 2022
Unprompted review
Nanostone ApS logo

Reply from Nanostone ApS

Dear Carol,

I am sorry that our service did not live up to your expectations. Unfortunately, we cannot guarantee that the terrace will be as new, nor was that promised in connection with your order.

We have had several of our employees out to look at the terrace and everyone confirms that it looks as it is supposed to and that it has been handled correctly.
We have not been able to topcoat due to the fact, that the house was rented out and this part has also been deducted from your bill.

Crediting took place in the first place to ensure that you did not receive a reminder fee while we reviewed the case. We have then invoiced you for the work carried out, which we believe fully complies with our regulations for correctly carried out work.

Kind regards Lene
Nanostone

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