About Us
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Satisfied Customers
- About us
Built for Double Glazing Businesses
With over 15 years of industry experience, we know exactly what works in this space from generating qualified leads to increasing conversions.
Whether you’re focused on new window installations, replacements, or full property upgrades, we deliver strategies that bring consistent growth and real results.
Quality Workmanship
We specialize in helping window & door companies grow fast using targeted lead generation strategies designed for the glazing industry
Insured & Guaranteed
We help double glazing companies generate high-quality enquiries, book more appointments, and close more deals not just clicks.
07879592233
- Services
Our Double Glazing Services
We provide a complete range of professional roofing solutions designed to protect, enhance, and extend the life of your property.
Window Installation
We provide expert double glazing window installation using high-quality, energy-efficient materials to ensure durability, insulation, and modern style.
Window Repair
From minor seal issues to damaged frames, our repair services restore the performance and appearance of your double glazing windows.
Window Maintenance
Regular maintenance helps extend the life of your double glazing windows and keeps them performing at their best. We offer inspections, cleaning.
Window Replacement
When your windows reach the end of their lifespan, we provide complete replacement solutions with modern, high-performance double glazing.
Door Installation
Upgrade your property with our professional double glazing door installation services. We install secure, energy-efficient doors designed to enhance insulation, style, and long-term performance.
Frame & Glass Repair
We repair damaged window frames, cracked glass, and faulty seals with precision. Our expert solutions restore insulation, security, and the overall performance of your double glazing systems.
Window Cleaning & Care
Keep your double glazing looking crystal clear and performing efficiently. Our cleaning and care services remove dirt and buildup while maintaining the quality and lifespan of your windows.
uPVC & Aluminium Windows
High-performance double glazing windows designed for maximum insulation, noise reduction, and modern aesthetics. Built to last with premium uPVC and aluminium frames.
About Our Repair Service
Bringing Broken Windows & Doors Back to Life
We repair all types of windows and doors including PVC, timber, aluminium, composite and more. Whether it's a draughty window, a jammed lock or a faulty hinge, we offer fast, professional repairs that restore security, function and peace of mind.
With over three decades of industry knowledge, we can often repair or upgrade handles, locks and systems that others simply can't. The Window Expert will assess your setup and offer honest advice on the best repair solution — no pressure, no upselling.
What We Fix
Complete Window & Door Repair Services
Lock Repairs & Replacements
Faulty, stiff or broken locks repaired or replaced across all window and door types. We stock locks for most PVC, timber and aluminium systems, including discontinued hardware.
Book a repairHandle Repairs
Loose, snapped or malfunctioning handles restored or upgraded. We carry a wide range of compatible handles to match your existing system and aesthetics perfectly.
Book a repairHinge Replacements
Dropped, seized or broken hinges replaced efficiently. Correctly fitted hinges restore smooth operation and ensure windows close securely against the weather seal.
Book a repairSealed Unit Replacement
Misted, cracked or blown sealed units replaced with high-performance glass. We supply A-rated double and triple glazed units with a 5-year installation guarantee.
Book a repairDraught & Seal Repairs
Worn or damaged gaskets and weather seals replaced to eliminate draughts, reduce heat loss and stop water ingress — making your home warmer and drier.
Book a repairDoor Mechanism Repairs
Dropped, sticking or misaligned doors re-aligned and adjusted. Multi-point locking systems serviced, repaired or replaced for smooth, secure operation every time.
Book a repairMisting & Condensation Fix
Condensation between glass panes means your sealed unit has failed. We diagnose and replace the unit quickly, restoring clarity and thermal performance.
Book a repairFrame & Sash Repairs
Cracked, warped or damaged frames repaired or reinforced. We work with PVC, timber and aluminium frames to restore structural integrity and appearance.
Book a repairGearbox & Espagnolette
Faulty window gearboxes and espagnolette locking bars repaired or replaced. Essential for correct locking of tilt-and-turn and casement windows.
Book a repairWhy Choose Us
Repair Specialists You Can Rely On
From a single broken handle to a full survey of all your windows and doors, we bring the same expertise, honesty and care to every job. No upselling, no unnecessary replacements — just honest repairs done right.
Same-Day oramp; Next-Day Repairs Available
We understand security matters. Urgent repairs are prioritised with fast turnaround and minimum disruption to your day.
All Systems Covered — Including Discontinued
With 15+ years of knowledge, we can source and fit hardware for older or discontinued systems that others can't handle.
Honest Assessment — Repair or Replace
We'll always tell you if a repair is the right solution. No unnecessary replacements recommended — just straightforward advice.
Fully Guaranteed Work
Fully Satisfied Work. Every job backed by our satisfaction guarantee.
Materials We Work With
All Window & Door Types Repaired
Whatever your frame material, we have the expertise and parts to repair it correctly and efficiently.
UPVC / PVC
The most common frame type, repaired across all makes and ages.
- Locks, handles & hinges
- Sealed unit replacement
- Weather seal & gasket repair
- Older & discontinued hardware
Timber
Traditional and modern timber frames repaired with care and precision.
- Sash cord replacement
- Frame rot treatment & repair
- Draught-proofing strips
- Period hardware sourcing
Aluminium
Slim-profile aluminium systems repaired with specialist knowledge.
- Bi-fold & sliding door repairs
- Track & roller replacement
- Multi-point lock servicing
- Gasket & seal renewal
Composite
Composite door systems repaired to manufacturer specification.
- Multi-point lock replacement
- Hinge adjustment & swap
- Letter box & hardware fit
- Weather seal replacement
Tilt & Turn
Complex tilt-and-turn mechanism repairs handled with expertise.
- Gearbox replacement
- Espagnolette bar repair
- Handle & actuator fix
- Friction stay servicing
Steel & Heritage
Listed buildings and heritage steel frames repaired sympathetically.
- Crittall-style window repair
- Period lock sourcing
- Sympathetic glazing
- Conservation-grade seals
Patio & Sliding
Patio and sliding door systems restored to smooth, secure operation.
- Roller & track renewal
- Anti-lift block fitting
- Lock cylinder replacement
- Draught seal overhaul
Commercial
Office, retail and commercial window & door repairs at any scale.
- Curtain wall glazing
- Automatic door servicing
- Fire door compliance checks
- Out-of-hours availability
How It Works
Simple, Straightforward Repair Process
Get in Touch
Call or contact us online to describe your repair issue. We'll discuss the problem and arrange a convenient visit.
Free Survey
We visit at a time that suits you, assess the fault and provide honest advice on the best repair solution — no obligation.
Clear Quote
You receive a clear, fixed-price quote upfront. No hidden charges, no surprises — just transparent pricing.
Repair Done
We carry out the repair cleanly and efficiently, leaving your home tidy and your windows or doors as good as new.
Common Questions
Frequently Asked Questions
Not sure if your window or door can be repaired? Have a question about cost or timing? We've answered the most common questions below.
Need to speak to someone? Give us a call — we're always happy to chat.
Call Us NowDo I need a replacement or can my window be repaired?
Is the survey and quote really free?
Can you repair older or discontinued window systems?
What guarantee do repairs come with?
How quickly can you come out for an urgent repair?
Which areas do you cover?
Service Coverage
Repairs Across London
We provide professional window and door repairs throughout London. Get in touch to confirm coverage for your area.
Guaranteed Repair
All repairs and hardware parts are guaranteed .
5-Year Sealed Unit Guarantee
All sealed unit replacementsd carry a 5-year installation guarantee for complete peace of mind.
Fully Insured & Insured
All work is carried out by professionals and meets current building regulations.
- Testimonials
Our Clients Testimonials
Absolutely brilliant service from start to finish! The team was professional, friendly, and really knew what they were doing. The quality of the double glazing is excellent — my home feels warmer and much quieter already. Highly recommend Double Glazing King to anyone looking for reliable and top-quality work.
I had a great experience with Double Glazing King. From the initial consultation to the final installation, everything was smooth and hassle-free. The team arrived on time, kept everything clean, and delivered exactly what they promised. The windows look amazing and have made a huge difference!
