When your UPVC windows develop problems, expert UPVC window repair provides the professional solution without the expense and disruption of full replacement. With over 30 years experience repairing double glazing across the UK, we've mastered every aspect of window restoration - from simple lock adjustments to complex sealed unit replacements. Our comprehensive repair services restore your windows' security, insulation, and appearance while saving up to 70% compared to replacement costs.
Modern UPVC windows are sophisticated systems combining multiple components: multi-point locking mechanisms, precision-engineered hinges, hermetically sealed glass units, and weather-resistant frames. When any component fails, it affects your home's security, energy efficiency, and comfort. Our UPVC window repair expertise covers all major manufacturers including Everest, Anglian, Safestyle, and hundreds of independent installers' systems. Every repair comes with our comprehensive 12-month warranty, ensuring lasting performance and peace of mind.
UPVC windows revolutionised home improvement when introduced in the 1980s, offering superior insulation, security, and low maintenance compared to traditional timber frames. However, after 10-15 years of constant use and weather exposure, even quality UPVC windows develop problems requiring professional repair. Understanding these systems helps identify issues early, preventing costly damage and maintaining your home's comfort.
Modern UPVC windows feature sophisticated multi-point locking systems with 3-7 locking points operated by a single handle. These mechanisms comprise the espagnolette (central gearbox), shootbolts, roller cams, and mushroom cams that engage with keeps around the frame. Common failures include worn gearboxes causing handle spinning, misaligned keeps preventing closure, and broken shootbolts leaving windows insecure. With 30 years experience, we stock replacement parts for obsolete systems no longer manufactured.
Double glazing units consist of two glass panes separated by an aluminium or warm-edge spacer bar containing desiccant crystals. The cavity is filled with dehydrated air or argon gas, then hermetically sealed with primary butyl and secondary polysulphide sealants. When seals fail, moisture enters causing the characteristic misting or condensation between panes. Our sealed unit replacement service uses A-rated glass with enhanced low-E coatings and argon filling, often improving insulation beyond original specifications.
UPVC windows rely on precision hardware: friction stays controlling opening angles, tilt-and-turn mechanisms for versatile ventilation, and restrictor stays for child safety. Handles incorporate complex mechanisms translating rotational movement into linear motion. Each component must withstand thousands of operations while maintaining smooth function. We carry extensive stocks including discontinued lines from GU Ferco, Maco, Roto, Siegenia, and Yale, ensuring even 20-year-old windows can be repaired.
UPVC window profiles aren't simply plastic extrusions but complex multi-chamber systems designed for strength and insulation. Leading systems like Rehau, Veka, and Kommerling feature 5-7 internal chambers with steel reinforcement. Surface damage from impacts, UV degradation, or thermal movement can compromise both appearance and performance. Our specialist repair techniques restore damaged frames using colour-matched compounds and professional refinishing systems.
Effective weather sealing depends on multiple components: bubble gaskets around opening sashes, compression seals between frame and sash, and glazing gaskets securing glass units. These EPDM or TPE seals degrade over time, hardening and shrinking to create gaps allowing draughts and water ingress. Professional seal replacement using correct profiles and proper installation techniques restores weather resistance while improving thermal efficiency by up to 25%.
Misted or blown double glazing occurs when the perimeter seal fails, allowing moisture into the cavity between glass panes. This condensation obscures views, reduces insulation, and promotes mould growth. Our repair process involves carefully removing the failed unit, measuring precisely, and installing new A-rated sealed units with 10-year manufacturer warranties plus our 12-month installation guarantee.
Modern replacement units feature warm-edge spacer bars reducing heat loss by 70% compared to aluminium spacers. Low-emissivity coatings reflect heat back into rooms while allowing solar gain. Argon gas filling provides 30% better insulation than air. We offer various glass options including acoustic laminated for noise reduction, toughened for safety, and decorative patterns matching period properties.
Faulty window locks compromise home security and invalidate insurance policies. Common issues include handles spinning without engaging locks, windows not closing fully, and keys breaking in locks. Our comprehensive lock repair service covers all types: espagnolette multi-point systems, shootbolt mechanisms, and traditional cockspur handles. With 30 years experience, we identify worn components quickly, often completing repairs within an hour.
Security upgrades enhance protection beyond original specifications. We install anti-snap lock cylinders resistant to common burglary techniques, additional locking points for large windows, and restrictor stays preventing windows opening beyond safe limits. All replacement locks meet PAS24:2016 enhanced security standards and Secured by Design specifications required by many insurers.
Window hinges endure enormous stress, supporting heavy sashes through thousands of opening cycles. Symptoms of hinge failure include windows dropping when opened, difficulty closing, and gaps appearing around frames. Standard friction stays, egress hinges for fire escape, and restricted hinges for child safety all require different replacement techniques. Our technicians carry comprehensive stocks ensuring same-day repairs for most hinge types.
Professional hinge replacement involves more than simple part swapping. We check frame reinforcement, adjust keeps for smooth operation, and lubricate mechanisms with silicone spray. Where frames show wear from hinge movement, we reinforce fixing points using specialist techniques. Every hinge replacement includes our 12-month warranty covering parts and labour.
UPVC frames suffer various damage: impact marks from furniture, scratches from cleaning, burn marks from cigarettes, and colour fading from UV exposure. Our specialist repair techniques restore frames to pristine condition without replacement. Using colour-matched repair compounds, we fill damage invisibly. Professional polishing removes surface oxidation restoring original shine.
For extensive damage or colour changes, we offer UPVC spraying services. This transforms tired white frames to contemporary anthracite grey or other colours using specialist paints formulated for UPVC. The process includes thorough preparation, primer application, and multiple topcoats creating a factory-quality finish lasting 10+ years with proper maintenance.
Every UPVC window repair begins with comprehensive diagnostic assessment. Our technicians examine all components systematically: checking lock operation through full handle rotation, testing hinge movement and weight distribution, inspecting seals for hardening or gaps, and evaluating sealed units for moisture ingress. Using specialist tools including thermal cameras to detect heat loss and moisture meters identifying hidden water ingress, we diagnose problems accurately.
This thorough approach, refined over 30 years experience, identifies primary faults and secondary issues that could cause future problems. We document all findings, explaining issues clearly and providing transparent quotations for necessary repairs. Where windows are beyond economic repair, we advise honestly, helping customers make informed decisions about replacement versus repair.
Professional UPVC window repair demands precision techniques and specialist tools. Lock mechanisms require careful disassembly, cleaning, and lubrication with graphite or silicone lubricants that won't attract dust. Worn components are replaced with exact matches or compatible upgrades. Handles must be positioned precisely to ensure smooth operation without straining mechanisms.
Sealed unit replacement involves careful measurement accounting for drainage slots and Georgian bar positions. We use glazing packers ensuring correct weight distribution and toe-and-heel glazing preventing frame distortion. New units are sealed with appropriate compounds: silicone for drainage systems or butyl tape for internally glazed units. Every stage follows manufacturers' specifications ensuring warranty compliance.
Following repairs, comprehensive testing ensures perfect operation. Windows are opened and closed repeatedly checking smooth movement and correct locking engagement. We test weather sealing using smoke pencils detecting air leakage and water testing for critical installations. Thermal imaging confirms sealed unit installation hasn't created cold bridges affecting insulation.
Documentation includes before and after photographs, detailed repair specifications, and warranty certificates. We provide maintenance advice helping customers preserve their repairs: which lubricants to use, cleaning techniques avoiding damage, and signs indicating service requirements. This professional approach ensures our 12-month warranty claims remain below 1% - exceptional in the window repair industry.
Regular maintenance extends UPVC window life significantly. Our preventive maintenance programs include annual inspections identifying developing problems before they become serious. We adjust keeps and hinges compensating for frame settlement, lubricate mechanisms preventing premature wear, and replace seals before they fail completely.
Commercial clients particularly value preventive maintenance, avoiding emergency repairs and maintaining building appearance. Schools, offices, and retail premises schedule maintenance during quiet periods minimising disruption. Detailed maintenance records support warranty claims and demonstrate duty of care for health and safety compliance. With 30 years experience, we've developed maintenance schedules optimised for different window types and usage patterns.
Window lock repairs cost £65-£125 depending on mechanism complexity. Simple espagnolette gearbox replacement takes 30-45 minutes, while complete multi-point lock overhauls require 60-90 minutes. Handle replacements range from £45-£85 including premium brands like Yale and ERA. Inline or cranked handles for specific frame types may cost slightly more due to limited availability.
Hinge replacements typically cost £75-£145 per window. Standard friction stays are readily available, while specialised egress or restricted hinges cost more. Large windows requiring heavy-duty hinges or unusual sizes increase costs. Where multiple hinges need replacement, we offer discounted rates - particularly valuable for property managers maintaining multiple units.
Sealed unit replacement ranges from £195-£395 depending on size and specification. Standard clear float glass costs less than low-E argon-filled units. Decorative glass, acoustic laminated, or toughened safety glass increases prices. Our 12-month warranty covers installation, with manufacturer warranties on glass units extending 5-10 years.
Frame repairs start from £85 for minor scratch repair, rising to £245 for extensive damage restoration. UPVC respray services cost £295-£495 per window depending on size and colour choice. All prices include materials, labour, and our comprehensive warranty.
UPVC window replacement costs £400-£800 per window including installation. Premium brands and large sizes push costs higher. Replacement involves significant disruption: removing existing windows risks damaging decoration, replacement takes 2-4 hours per window, and matching existing windows proves challenging. Our repair services cost 60-70% less while maintaining original aesthetics.
Energy savings from repair justify investment quickly. Replacing failed sealed units with A-rated glass reduces heat loss by 75% compared to failed double glazing. Draft-proofing with new seals cuts heating bills by 10-15%. Properties with 10+ windows save hundreds annually through comprehensive repair programs. With 30 years experience, we calculate payback periods helping customers make informed decisions.
Well-maintained UPVC windows significantly impact property values. Estate agents report buyers immediately notice window condition, with misted units and faulty locks creating negative impressions. Professional repairs costing £500-£1500 for an entire property can add £5000-£10000 to sale prices by presenting homes positively.
Landlords particularly benefit from window repair services. Maintaining windows properly reduces tenant complaints, prevents costly emergency callouts, and supports higher rental yields. Our 12-month warranty provides peace of mind, while detailed repair documentation demonstrates professional property management to letting agents and tenants.
Most UPVC windows under 25 years old can be successfully repaired. With 30 years experience, we've sourced parts for virtually every system including obsolete manufacturers. Modern windows from major companies like Everest, Anglian, and Safestyle use standardised components making repairs straightforward. Older or bespoke systems may require specialist parts, but our extensive supplier network usually sources replacements within days. Only severely damaged frames or windows with multiple component failures might require replacement. We assess honestly, recommending replacement only when repair isn't economical.
Professional UPVC window repairs typically last 10-15 years with proper maintenance. Lock and handle replacements often outlast the windows themselves. New sealed units come with 5-10 year manufacturer warranties, with our 12-month installation warranty providing additional protection. Hinge replacements last indefinitely with annual lubrication. Frame repairs using quality materials remain invisible permanently. The key to longevity is using correct parts and professional installation techniques - shortcuts using incompatible components or poor installation cause premature failure.
Sealed unit failure results from perimeter seal breakdown allowing moisture ingress. Contributing factors include frame flexing stressing seals, incorrect installation causing uneven pressure, chemical attack from cleaning products, and natural UV degradation over 15-20 years. Poor quality units using inferior sealants fail within 5-10 years. Water trapped in frames accelerates failure through freeze-thaw cycles. Our replacement units use advanced sealants and warm-edge technology significantly extending lifespan beyond original specifications.
Yes, windows failing to close properly are our most common repair. Causes include dropped hinges requiring adjustment or replacement, warped frames needing realignment, worn lock mechanisms preventing proper engagement, and debris in frame channels obstructing closure. Our systematic diagnostic approach identifies root causes quickly. Most closure problems resolve within an hour through professional adjustment, cleaning, and lubrication. Where parts need replacement, we carry extensive stocks enabling same-day repairs. Our 12-month warranty covers all adjustments and replacements.
Absolutely. We specialise in commercial UPVC window repair for offices, schools, retail premises, and industrial buildings. Commercial windows often feature heavy-duty mechanisms and specialised hardware requiring specific expertise. With 30 years experience, we understand commercial requirements: minimal disruption, health and safety compliance, and detailed documentation. We offer planned maintenance contracts preventing unexpected failures and emergency callout services for urgent repairs. Many commercial clients value our transparent pricing and reliable service.
Our comprehensive 12-month warranty covers all labour and parts we supply. If repairs fail within 12 months, we return free of charge to rectify issues. The warranty excludes accidental damage, vandalism, or problems caused by building movement. Sealed units carry additional manufacturer warranties typically 5-10 years against moisture ingress. We provide detailed warranty documentation including repair specifications and claim procedures. In 30 years, warranty claims remain below 1% - testament to our repair quality and professional standards.
A primary school contacted us after attempted break-ins exposed window security weaknesses. Their 15-year-old UPVC windows had basic locking unsuitable for ground floor classrooms. We upgraded 47 windows with anti-snap cylinders and additional locking points, meeting insurance requirements. The project, completed during summer holidays, cost £3,800 versus £35,000 for replacement. Our 12-month warranty provides peace of mind, while improved security reduced insurance premiums by £1,200 annually.
A boutique hotel faced numerous guest complaints about misted windows obscuring scenic views. 34 sealed units had failed across the property. We completed phased replacement over two weeks, working around bookings to minimise disruption. Using acoustic laminated glass reduced traffic noise by 5dB while A-rated units improved insulation. Total cost: £8,900 including our warranty. Full window replacement quoted at £27,000 would have required closing rooms for a month.
A commercial property manager engaged us for preventive maintenance across their 12-building portfolio. Initial inspections identified 140 windows requiring attention: adjustments, lubrication, and seal replacements. Our planned maintenance program cost £4,200 annually, preventing emergency repairs previously costing £15,000+ yearly. With 30 years experience, we developed customised maintenance schedules for each building. Detailed documentation supports warranty claims and demonstrates compliance for health and safety audits.
Don't let faulty windows compromise your property's security, comfort, and value. With 30 years experience repairing UPVC windows nationwide, we provide expert solutions for every window problem. From simple lock adjustments to complete sealed unit replacement, our professional service restores perfect function while saving thousands compared to replacement.
Call 0345 017 0787 now for immediate assistance. Our technical team provides free telephone diagnostics, helping identify problems and solutions quickly. Send photos via WhatsApp for accurate quotations. We stock parts for all major manufacturers, enabling same-day repairs for most issues.
Every repair includes our comprehensive 12-month warranty, giving you complete peace of mind. Join thousands of satisfied customers who chose professional repair over expensive replacement. Limited appointment slots available this week - contact us today.
Step 1: Call 0345 017 0787 for free telephone diagnostics
Step 2: Send photos for accurate quotation
Step 3: Book convenient appointment
Step 4: Professional repair with 12-month warranty
Step 5: Enjoy perfectly functioning windows
With 30 years experience and comprehensive 12-month warranty, we're the UK's trusted UPVC window repair specialists. Professional service, transparent pricing, and lasting results guaranteed.
