For FM providers, managing agents and supply chain teams
Your Glazing and Door Subcontractor Across London
Reactive door and glass repairs, planned maintenance and 24/7 make-safe for FM providers and managing agents, with the compliance paperwork your supply chain team needs and a photo report on every job.
24/7 Emergency – 07503 379 215- CHAS Gold · Constructionline Gold
- £10m public, employer & PI cover
- Photo report on every job
- 24/7 emergency line
Trusted by Brands, FM Teams and Public Sector Clients
Commercial glazing, door repairs and maintenance for retail, offices, education, healthcare and managed buildings across London.
Not sure what you need?
What's happening with your door or glass?
Pick the one that fits and we'll tell you the quickest way to get it sorted.
What Your Supply Chain Team Gets
Built around how FM helpdesks raise, track and close jobs.
Pre-Qualified
CHAS Gold and Constructionline Gold accredited, with £10m public, employer and professional indemnity cover.
Paperwork Ready
Insurance certificates, accreditation details and site-specific RAMS supplied for onboarding and before works start.
Photo Reports
Before and after photos, fault found, parts used and recommendations on every job, ready to attach to your ticket.
Parts on the Van
AXIM, Dorma, GEZE and Alpro floor springs, pivots and closers carried, so most door faults are fixed first visit.
1–2 Hour Emergency Response
Engineer on site within 1–2 hours across London, 24/7, for make-safe, boarding and emergency glazing.
London and the South East
Offices, retail, schools, healthcare and managed residential across London, Kent, Essex and Surrey from our Swanley base.
Proof
Work for Offices, Multi-Site Retail and Managed Buildings
The kind of tickets FM helpdesks raise every day, photographed on site by our engineers.
Broadridge Financial Solutions
Arthur Street, City of London
Both floor springs replaced and maglock aligned
- The brief
- A double glass entrance in a City office was failing to close and hold, affecting security on the floor.
- What we did
- We set up a barriered zone, removed both glass leaves, replaced the two floor springs, reinstalled the doors and aligned the maglock.
- The result
- Both leaves now close and hold correctly and the maglock engages first time.
More projects (18)
Use the arrows or click and drag to browse. Swipe to browse. Click any project to see its photos above.
Response levels
How We Prioritise Your Jobs
Every job is logged with a priority so the right engineer and parts go first time. Emergencies in London get an engineer on site within 1–2 hours, 24/7. Contract response times for other priorities are agreed with you during onboarding.
| Priority | When it applies | Our response |
|---|---|---|
| Priority 1 · EmergencyBuilding can't be secured, broken glass, safety risk | Building can't be secured, broken glass, safety risk | Engineer on site within 1–2 hours across London, 24/7, to make safe and secure |
| Priority 2 · UrgentDoor won't lock, close or open properly | Door won't lock, close or open properly | Same-day attendance where possible |
| Priority 3 · RoutineFaults that aren't a security or safety risk | Faults that aren't a security or safety risk | Booked in at an agreed time, with the right parts identified first |
| Planned maintenanceScheduled servicing of doors, closers and windows | Scheduled servicing of doors, closers and windows | Quarterly, six-monthly or annual visits on an agreed schedule |
What We Cover for FM Contracts
Reactive Door Repairs
Floor springs, pivots, top arms, transom closers, locks, maglocks and panic hardware on aluminium and glass doors.
Glass Replacement
Broken, cracked and misted units in doors, shopfronts, windows, balustrades and curtain walling.
Emergency Make-Safe
24/7 boarding, temporary glazing and securing of entrances after damage or break-ins.
Planned Maintenance
Scheduled servicing of entrance doors, closers, floor springs and windows, with condition reports and remedial quotes.
Windows & Restrictors
Hinges, friction stays, handles and window restrictors repaired or replaced across occupied buildings.
Installations
New entrance doors, shopfronts, curtain walling and commercial windows when repair isn't viable.
Documents Available for Onboarding
- CHAS Gold certificate
- Constructionline Gold membership
- £10m public, employer and PI insurance certificates
- Site-specific RAMS and method statements
- Company number 03917768 · VAT GB 689 6943 49
- Photo report template and sample job reports
- Signed client reference letters (local authority, school, contractors)
Professional. Certified. No excuses.
FENSA RegisteredCHAS Gold Accredited
Constructionline Gold
DBS-Cleared Teams- Fully Insured£10m public, employer and PI cover
Supply chain enquiry
Request Our Supplier Pack
Tell us your company, the sites or region and what you need. We'll send our accreditation and insurance details and arrange a call.
Reviews
Rated 4.9 on Google
From 32 reviews by businesses and homeowners across London and Kent.
- Door repair
“Super super company, cannot thank Zach and the team enough, we are a 24 hour Gym and had a security issue with our door and alarm system which needed a complete replacement door frame, door and new magnetic lock alarm system, the price was very reasonable, the work was carried out to a phenomenally high standard, the work was clean, tidy and exceptional. The service was top notch and the clean up afterwards was showroom quality, efficient service and very personable and would highly highly recommend these guys. There simply is not enough words or superlatives to say how great these guys and look no further”
AATF AlpertonGoogle review - Shop door repair
“Amazing service and professionalism from Zach and the team. He was able to fix our shop door the same day we called. Thank you!”
AAlexandru VladGoogle review - Emergency repair
“I had an unexpected emergency where my door was damaged, I called NZR windows and doors they were around within an hour and completed the repairs at a great price. I would highly recommend.”
EEva HilderGoogle review
Signed client references
What Our Commercial Clients Put in Writing
Taken word for word from reference letters written by a local authority, a school and the contractors we work for. Full letters available on request.
“This work was carried out very professionally and to a very high standard. I have now used NZR on numerous occasions and have no hesitation in recommending this contractor to other internal departments and external organisations.”
The Council has since used NZR for further glazing works and commissioned us to write a specification for large acoustic windows and commercial doors.
“Always delivered to a high standard, including during unsociable hours. Excellent, especially responsive for emergency works in high-security areas.”
Emergency glass replacement, boarding up, responsive repairs and glazing replacements, often out of hours.
“From our very first enquiry, NZR Windows & Doors has proven to be an invaluable partner. I wouldn't hesitate to recommend NZR windows & Doors to anyone looking for reliable, high-quality reactive and planned maintenance repairs.”
Emergency glazing repairs, glass replacements, reactive maintenance and full door and frame replacements, with fast response times.
“The works were completed on time and to a good standard, ensuring the school was ready for the start of the new academic year. Throughout the project, NZR demonstrated a professional and proactive approach.”
FM Supply Chain FAQs
Do you work as a subcontractor to FM providers?
Yes. We carry out reactive door and glazing repairs, planned maintenance and make-safe work for FM teams, managing agents and main contractors, on a per-job or contract basis.
What accreditations do you hold?
CHAS Gold and Constructionline Gold, with £10m public liability, employer's liability and professional indemnity cover. Certificates are included in our supplier pack.
Can you work to our helpdesk and PO process?
Yes. We can take jobs by email or through your system, quote against your PO numbers and send a photo report with each completed job so the ticket can be closed.
What response times do you work to?
Emergencies (a site that can't be secured, broken glass or a safety risk) get an engineer on site within 1–2 hours across London, 24/7. Urgent faults are attended the same day where possible, and routine and planned work is booked to your agreed schedule.
Which areas do you cover?
London and the South East, including Kent, Essex and Surrey, from our base in Swanley, Kent.
Can you send RAMS before attending?
Yes. Site-specific RAMS and method statements are provided before works start, including for occupied buildings and out-of-hours working.

















