# Diamond Glass & Glazing Southern Ltd Diamond Glass & Glazing Southern Ltd is a window / door fitter in London. Rated 4.9/5 from 96 public reviews across 2 review sources. This is the MyTrustedTraders public-evidence profile for this trader, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement. No Trust Score yet: not enough public evidence held to score this business. 5 reviews in the last 12 months. ## Emergency callout _Listed for emergency callout on Checkatrade. This is how they list themselves. Call ahead to confirm they can attend your job right now before you rely on it:_ - Windows / Doors / Conservatories ## About With 57 reviews and a FENSA accreditation, Diamond Glass & Glazing Southern Ltd stands out for its commitment to detail and customer satisfaction in the London area. Many customers praise Kevin for his professionalism and kindness, as seen in positive feedback like Emily L's, who highlights his willingness to go above and beyond. Multiple reviews commend his punctuality, efficiency, and cleanliness, qualities that have led to repeat business and recommendations. Serving the community for 6 years, Kevin's expertise is particularly noted in glazing and locksmith services, offering transparent quoting and timely project completions. ## Public review evidence (by source) | Source | Average rating | Reviews | | --- | --- | --- | | Checkatrade | 4.9/5 | 58 | | Which? Trusted Traders | 5.0/5 | 38 | _Per-source review counts may overlap. They need not sum to the 96 cross-checked total above._ Independently rated 4.9–5.0 out of 5 across 2 separate review sources. Ratings that agree across independent sources are far harder to fake than a single glowing profile. Rated 4.9, in line with the local average for window / door fitters in London. Across 255 window / door fitters in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally. Most recent review: 9 months ago. ## Customer rating breakdown _Per-category customer ratings from Checkatrade:_ - Reliability: 5.0 out of 5 - Communication: 5.0 out of 5 - Quality of work: 5.0 out of 5 ## What customers consistently say _Recurring strength themes from this trader's own reviews, each with a verbatim quote:_ - **Reliable and punctual** (Quoted from 2 reviews): "Very reliable, turned up on time" · Checkatrade, 5 Mar 2025 _Respectful and tidy in your home (2 reviewers describe them being respectful of the home and leaving it clean):_ "Kevin and his team had cleaned any mess that had been created" · Checkatrade, 9 Dec 2022 ## Often reviewed for _Job types repeatedly named in this trader's own public reviews:_ - Windows & doors (11 reviews) ## In customers' own words _Verbatim quotes from this trader's public reviews, each attributed to its source:_ > "Cat flap fitted into glass door. Vey happy with service. Recommended." > Source: Customer (5.0, via Checkatrade) > "Quick and efficient, great communication throughout. Doors open and close smoothly now!" > Source: Customer (5.0, via Checkatrade) > "Very pleased with the service - from providing a quote quickly to replacing broken window panel .Would definitely recommend Diamond Glass !" > Source: Customer (5.0, via Checkatrade) ## Trades Window / door fitter, Glazier ## Services they list _Listed on public sources or the business's own website; check directly that they cover your job before you book:_ - Aluminium Doors Repair - Aluminium Windows Repair - Bay Windows Repair - Bifold Doors Repair - Cat Flaps - Composite Front Doors Installation - Composite Front Doors Repair - Conservatory Repairs - Dog Flaps - Double Glazing Installation - Double Glazing Repair - Exterior Doors Repair ## Areas covered _Towns and areas this trader lists serving. This is their own stated coverage, so confirm they cover your exact address before you book:_ - London ## What we checked, and when _What MyTrustedTraders independently checked for this business (verified items only):_ - Review volume: MyTrustedTraders shows 96 public reviews on this profile. (via MyTrustedTraders public listing) - Public listing spread: MyTrustedTraders shows 2 public listings for this trader. (via MyTrustedTraders public listing) - Business identity: MyTrustedTraders shows public business identity data with operating status unknown. (via MyTrustedTraders public listing) - Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing) - Current credentials shown: MyTrustedTraders shows 1 current credential on this profile. (via Public credential evidence) Full verification checklist: https://mytrustedtraders.com/traders/diamond-glass-glazing-southern-ltd/checks ## Credentials & sources - Credentials shown: 2 (1 currently verifiable, listed below) - FENSA: the competent-person scheme for replacement windows and doors, self-certifying they meet building regulations - Companies House status: Unknown - Evidence held from: Which? Trusted Traders, Checkatrade, FENSA - Public evidence last checked March 2026 ## Before you hire a window / door fitter _What to check when choosing this kind of trade (general guidance, not a claim about this business):_ - Be wary of high-pressure 'today-only' discounts and a salesperson who won't leave. A reputable window or door firm gives you a written, itemised quote you can take away and compare against others. - Never pay the full price up front; a modest deposit with the balance on completion is normal. Ask what deposit protection or insurance-backed guarantee you get if the firm stops trading before fitting. - Get the specification in writing (frame material, the glazing units and their energy rating, and any trickle vents) so you can check you got what you paid for. - Replacement windows and external doors must be signed off as meeting building regulations. Use an installer registered with FENSA or CERTASS so they self-certify the work and give you the certificate you'll need when you sell. - Confirm they cover your area and can actually come out in your timeframe before anything else. ## Contact - Phone: 020 8859 8333 --- Source: MyTrustedTraders, https://mytrustedtraders.com/traders/diamond-glass-glazing-southern-ltd Real public evidence only: every figure traces to a named source, and reviews are cross-checked across 2 review sources. If a source does not carry a field, it is not shown.