NoCall

+44 170 877 241 0

Risk level: High

Who is this? Spam, telemarketing or a legitimate call? Community reports in United Kingdom.

Number with prefix 170. Review community reports, risk and comments below before answering or blocking. Browse numbers with prefix 170

High
Risk level
Harassment
Category
0
Spam reports
—
Last report

AI Analysis

Limited information: Multiple reports of telemarketing and harassment from 'Crystal Windows'. Users report aggressive sales tactics, overpricing, and disregard for opt-out requests. Some users mention poor quality products and deceptive sales practices.

Likely purpose: Aggressive telemarketing for window and door sales, with potential deceptive business practices.

Most common user complaints

  • aggressive sales tactics
  • overpriced
  • disregard for opt-out requests
  • poor quality products
  • deceptive sales practices
High dangerBlockCrystal WindowsMissed call

AI analysis: 10 Jul 2026

Information based on community reports and automated analysis. It may contain errors or be out of date, and is not legal advice or a verified accusation against the number's owner.

Web research

A concise report based on available public lookups indicates the number is a UK international format (+44) likely a landline or generic UK service number, with multiple UK “who called” and spam report databases noting potential scam risk. No definitive owner name is publicly confirmed.

View full report

A concise report based on available public lookups indicates the number is a UK international format (+44) likely a landline or generic UK service number, with multiple UK “who called” and spam report databases noting potential scam risk. No definitive owner name is publicly confirmed. 1. Who the number appears to belong to, or what kind of number it is: UK number in +44 format, typically landline or non geographic; ownership not clearly identifiable from public data. 2. What people say about it online: Various UK reverse lookup and spam check tools show reports or risk assessments, often labeling similar numbers as potentially spam or telemarketing; specifics for this exact digits string vary by source. 3. Whether it is associated with spam, scams, fraud, phishing, telemarketing or unwanted calls: Indications exist in community reports and scam check databases suggesting risk, but no conclusive, consistent classification across all sources for this exact number. 4. Whether the number is publicly exposed or leaked online: Appears in public looking lookup databases and spam report aggregators, implying exposure in public facing directories; no clear breach or paste site leakage tied to this exact number. 5. Whether it is advisable to answer or call it back: Generally not advisable to answer or return calls from numbers with mixed scam risk indicators and public reports; consider screening or verifying through official channels if needed.

Checked · 13 Aug 202611 sources
GB

United Kingdom

Operator information

Country:
GBUnited Kingdom
Prefix:
+44
Type:
Other
Operator:
EE, O2, Vodafone, Three

Recent searches

3 this week

Last 7 days

Community comments

28
Anonymous
18 Nov 2022

Had their windows installed earlier in the year, now they keep calling me asking if other works needs doing and trying to sell me solar panels, can't be bothered with them.

Anonymous
13 Mar 2020

silent call.

Anonymous
13 Feb 2020

Harassment Calls none stop after I took at a leaflet Blocked number Now they ring off another number

Anonymous
7 Nov 2019

Kate reportó Crystal Windows con el número 01708-772410 como Publicidad agresiva

Anonymous
29 Oct 2019

Had a sky high quote from them a few months ago which we chose not to proceed with and now they call us literally every day. We have blocked the number. If we answer and say we are not interested the calls stop for a few weeks and then start up again.

Anonymous
3 Aug 2019

We wanted a quote for a sliding door for our back porch and the salesman quoted over 6k and then he dropped the price to 2 times! They try to pressure you and that if you dont sign today you wont find a better deal! Salesman ask what your job occupation is which has nothing to do with your quote and are fishing for how much money they can squeeze out of you. I keep getting calls even though i have told them multiple times i am not interested.

Anonymous
29 Jul 2019

What happened to GDPR?!!! Crystal windows from Romford ringing me - no idea how they got my number and I don't need new windows!

Anonymous
18 Jun 2019

Aggressive sales pitch and massively overpriced before the so called discount if you buy before a certain date / time. Questionable reports on their quality. Would not recommend.

Anonymous
21 Mar 2019

Crystal windows have been calling me since November 2018. I told them in November I would not buy from them. I have blocked their number. They are constantly calling me. Most recently 19th,20th and 21st March .

Anonymous
15 Mar 2019

Called at 20:23. Trying to flog doors an windows have asked on numerous occasions for my number to be removed from there marketing but still they call

Anonymous
21 Feb 2019

Keeps calling home & mobile number even though I don't want/need any windows

Anonymous
19 Feb 2019

A couple of years ago I had all my windows replaced by Crystal windows, got several calls from them asking if I needed any further work doing on the house, I said no and please remove my number and stop calling me, i'm still getting calls from them. don't give them your phone number I wish I hadn't.

Anonymous
28 Sept 2018

Kill it with fire

Anonymous
22 Jul 2018

Calls continually in breach of my TPS entry and refuses to stop calling. Hangs up when I mention TPS

Anonymous
22 Jul 2018

They ring and are screened out by our Call Guardian which blocks any caller who won't announce their name. Called us Sunday at 12 noon.

Anonymous
22 Feb 2018

Wouldn't touch them with a bargepole! Utter charlatans!

Anonymous
22 Jun 2017

They sell very poor quality windows, after intense harassment, pretending they are high quality. The agent shows you high quality but they fit low quality. That's how they make their high profits.

Anonymous
25 May 2017

Hung up when asked to declare who they were by Call Guardian.

Anonymous
20 May 2017

They hung up when screened by Call Guardian which asks them to declare who they are before I answer.

Anonymous
20 Apr 2017

Telemarketing for some very expensive windows.

Anonymous
7 Feb 2017

I have had two houses done with Crystal windows, any problems they have re visited at no cost, windows were at market rates, it depends how you negotiate the right deal. I am afraid sales is sales in most industries.

Anonymous
1 Feb 2017

This company have bad reputaion in the Romford area for pushy sales and high price they do not take no for an answer . However if you have aphone that blocks calls put this number on block.

Anonymous
16 Dec 2016

CrystalWindows telepest 01708772410. Got a quote for windows, overpriced and worse quality than local supplier who offered German A-rated windows for less than half the price. Crystal Window hinges appear poor, does not offer any easy clean hinges. Crystal salesman tried to pressure to sign deal. Thank you but no way! We do compare both quality and price. Now we receive calls from Crystal Windows even if we opted out from marketing calls. 40% off voucher a complete joke. And did you know,according to their salesguy it does not matter do you order 5 or 1 window, the installation will cost the same for the team installation team to come. 1 crystal window installed about £ 1000, similar window online (no installation) around £ 100 / each. Still 7 windows installed quoted at £ 7600 with the 40% discount the voucher entitled to and an additional 10% discount providing that we sign up immediately. Funny guys. If you don't sign up they will email you that they have an even better offer! Really? just a little bit less ripped off? If you didn't know a window is held in place with 4 nails/screws so takes about 15 minutes to change including cleaning up the rubbish.

Anonymous
17 Nov 2016

Started call asking for Mr Jalinta, of an address unknown, then started a sales pitch about Christmas special deals etc. I told them to Eff off and remove my number from their data base.

Anonymous
11 Nov 2016

Sales calls - highly annoying and have blocked the number

Anonymous
8 Nov 2016

Cowboy company with high pressure sales people. Twice i have had windows but never with this shoddy company.

Anonymous
3 Aug 2016

repeated calls ongoing every other day, after unacceptably high quote for a kitchen job, from high pressure sales rep, Crystal windows are grade A shisters and should be called into direpute by inspectorate,

Anonymous
20 Jun 2016

trying to sell windows.

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What happened?

Signal summary for +44 170 877 241 0

+44 170 877 241 0 belongs to the 170 prefix and is classified as Harassment. This page combines no approved reports and 28 public comments to explain the risk level.

Frequently asked questions

Who calls from +44 170 877 241 0?
+44 170 877 241 0 is a phone number with the 170 prefix in United Kingdom. It has been reported 28 times by the community as a possible unwanted call. Check the comments to find out who might be behind this call.
Is +44 170 877 241 0 a spam number?
According to the community, +44 170 877 241 0 has 28 reports, which suggests it is likely spam. Check the risk score and comments for details.
Is it safe to call +44 170 877 241 0 back?
If you don't recognise the number and it has negative reports, it's best not to call +44 170 877 241 0 back. Avoid sharing personal or banking details with unknown numbers.
How can I block +44 170 877 241 0?
On iPhone, go to Recents in the Phone app, tap the (i) next to the number and choose 'Block this Caller'. On Android, long-press the number in your call history and select 'Block number'. You can also use the NoCall app to automatically block calls like +44 170 877 241 0.
Where can I report a suspicious call?
You can report +44 170 877 241 0 directly on this page using the report button. Your contribution helps other users identify unwanted calls.