“No complaints, love the clean windows.”
Public evidence profile
KM Window Cleaning
Review quality
Caution noted
Credentials & registries
TrustATrader Approved
Review caution: one or more review signals need a closer check.
No Trust Score yet
- Rated 4.9 from 1,254 reviews across 2 review sources
- 25 reviews in the last 12 months
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Trust at a glance
2 things checkedWhat we can verify about KM Window Cleaning
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
See the full verification checklist for KM Window Cleaning →Reviews · public evidence
What customers say
These reviews are published independently on the named public sources below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
4.9out of 5
Often reviewed for
Customers often mention
Where these reviews are published
- Checkatrade781 reviews · 4.9 avg
- TrustATrader473 reviews · 5.0 avg
Highlights
“I am very pleased with Chris' work. He cleaned my windows externally and they look great! Chris was professional, punctual and efficient, and l would certainly rely on his company 's services again!”
“I was very happy with the work from Chris. I will use him again”
Detailed reviews
These are the individual reviews we hold for KM Window Cleaning, including the highlights above. The 1,254 headline total is the review volume reported across public review sources.
Fantastic, friendly and high quality service. My windows are shining again! Highly recommended!
The best window cleaner in London!!
My first floor windows needed cleaning for a long time. Chris arrived on time and informed me several times a day about his situation - he is very communicative. She's very attentive to my comfort. She remembers everything important. She puts on shoe covers, protects the carpet, and vacuums after herself. The best window cleaner in London!!
Verified by Checkatrade
Chris did a great job of our windows - very professional and would highly recommend
Verified by Checkatrade
Had my conservatory cleaned inside and out. Nos crystal clear. Top class job and real value for money!
Verified by Checkatrade
Excellent. Kris was professional, polite, punctual, no fuss and the quality of results was exceptional
Read the other 9 detailed reviews on this pageShow fewer reviews
Verified by CheckatradeExcellent window cleaner
Chris did a fantastic job on our very dirty windows and conservatory roof. He worked extremely hard for 8 hours solid without a break. He is a consummate professional and our windows are now perfectly transparent!
Verified by CheckatradeExcellent window cleaning
Fantastic window cleaning. The team did inside and out, they were punctual, friendly, efficient and the windows have never sparkled like it! Highly recommend.
Verified by Checkatrade
What a team ! Absolute pro’s ! Two person team who take such pride in their work. We booked a full house window clean inside and outside clean - we have a lot of glass and not a drip, smear or missed bit ! How refreshing to find tradesmen who care abd do a fantastic job first time ! Highly recommend ! 10/10
Verified by Checkatrade4 bed house exterior window clean
Chris was very communicative and well priced. Very happy with the work done and would definitely recommend.
Verified by Checkatrade
Excellent service. Windows are immaculate and good communication and flexibility on booking.
Verified by Checkatrade
This husband and wife duo are a rare combo nowadays - excellent at their work and extremely nice people. After years of window neglect while using generic London companies, I searched locally in Clapham for a company that would do a decent job. The 5-star reviews drew me in immediately. When I contacted Chris, it was clear I had finally reached an expert. He was able to quote me on the spot and reassure me that he would do a fantastic job. The time and care he and his wife took to complete a perfect job was quite something, and the results speak for themselves. Highly recommended!
Verified by Checkatrade
Very efficient and thorough. They clean windows beautifully, glasses, frames, ledges and externally sills; even my shower enclosures and huge mirrors. Highly recommended. I use them regularly after being disappointed with the previous guy.
Verified by Checkatrade
KM Window Cleaning (Chris and Carolina) did an excellent job cleaning the windows on my 3-floor terrace house (11 sash windows 2 casements, 2 glazed doors) - very professional - the best window clean (inside and out) I have ever had. The claims they make on their website, for a high standard of service are fully justified and they are nice people who are easy to deal with.
Verified by CheckatradeLook for further for a window cleaner!
Excellent company. Good communication, turned up on time and did a very professional job cleaning our windows inside and out. Even cleaned a bathroom mirror and windows/ door handles without being asked. All at a decent price and with a courteous service. Recommended.
Review quality check
Review cautionOne or more review signals need a manual check
Some review signals are flagged for a closer manual check. That doesn't prove fake reviews or any wrongdoing.
2 sources minimum10+ reviews per source0.8+ rating gap flagged2 sources checkedAssessed 5 Jul 2026
10 reviews arrived within 7 days with limited reviewer detail
Several reviews appeared close together and carried limited reviewer detail. This should be checked before treating that cluster as strong trust evidence.Credentials and associations
1Credentials and memberships
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
Sources
3 named public sourcesWhere this information comes from
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Review sources
Business and public registers
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Independent checks
About this business
Recently reviewed25 reviews in the last 12 months.
How long they've really been tradingOperating since at least 2017 (9 years), according to an independent source, not just their own word.
Website online since2016First public review2017
Your own checks
What to check before you hire
Worth checking yourself
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Common questions about KM Window Cleaning
Is KM Window Cleaning a legitimate business?
KM Window Cleaning has 1,254 independent public reviews, rated 4.9 out of 5, gathered and cross-checked across 2 review sources. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about KM Window Cleaning?
KM Window Cleaning has 1,254 public reviews, averaging 4.9 out of 5, gathered across 2 review sources. You can read the individual reviews and where each came from in the reviews section above.
How do I know KM Window Cleaning's reviews are genuine?
KM Window Cleaning's 1,254 public reviews are gathered and cross-checked across 2 review sources. Reviews spread across several review sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Has KM Window Cleaning had recent public reviews?
KM Window Cleaning has 25 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.
Is KM Window Cleaning qualified and accredited?
We hold 1 independently sourced credential for KM Window Cleaning, including TrustATrader Approved. Each is attributed to the body that issued it in the credentials section. For example, TrustATrader Approved is TrustATrader's approved badge: awarded after it vets the trader's identity and background.
When was KM Window Cleaning's website registered?
KM Window Cleaning's website has been online since 2016, according to the public domain registry. This dates the website, not necessarily when the business began trading.