Installation duration depends on window size and quantity. A standard single window takes 2-3 hours from start to finish, including removal of the old frame, preparation of the opening, fitting, sealing, and cleanup. For a typical three-bedroom house with 8-10 windows, expect 1-2 full working days.

Larger bay or bow windows require 4-6 hours each due to their complexity. Patio doors typically need 3-4 hours. Our team works efficiently to minimize disruption - most residential projects are completed within 2 days. We provide a detailed timeline during the initial survey, accounting for any specific challenges like difficult access or structural adjustments needed.

We offer several glazing configurations to match different needs. Standard double glazing features two 4mm panes with a 16mm argon-filled gap, achieving U-values of 1.4 W/m²K. Triple glazing adds a third pane, improving thermal performance to 0.8 W/m²K - recommended for north-facing rooms or properties near busy roads.

Additional options include low-emissivity coatings that reflect heat back into rooms, reducing energy loss by 15-20%. Acoustic laminated glass reduces noise penetration by an extra 5-8 decibels. Toughened or laminated safety glass is available for ground-floor installations. Obscured or patterned glass provides privacy for bathrooms. Self-cleaning glass with photocatalytic coating minimizes maintenance in hard-to-reach locations.

Most window replacements in London fall under permitted development rights and don't require planning permission, provided the new windows are similar in appearance to the originals. However, listed buildings, properties in conservation areas, or buildings with Article 4 directions always require approval from the local council before work begins.

In conservation areas like parts of Westminster, Camden, or Greenwich, you may need to match specific design features such as sash windows or particular glazing patterns. Flats and maisonettes may require permission regardless of location. Building regulations approval is separate from planning permission and is typically needed for all installations - we handle this documentation as part of our service. Contact your local authority or check with us during the survey to confirm requirements for your specific property.

All Pubifa installations include a comprehensive 10-year insurance-backed guarantee covering materials and workmanship. This protects against manufacturing defects, seal failures, hardware malfunctions, and installation issues. The warranty remains valid even if our company ceases trading, as it's underwritten by an independent insurance provider.

PVC profiles carry a manufacturer's guarantee against discoloration, cracking, or warping for 10 years. Double-glazed units are covered for 5 years against seal failure or internal condensation. Hardware components including handles, locks, and hinges have a 2-year warranty. We provide annual maintenance checks during the first two years at no extra cost. All warranty terms are provided in writing at completion, with clear procedures for making claims if needed.

Pricing varies based on size, style, and glazing specification. A standard casement window measuring 1200mm x 1200mm with double glazing typically costs £350-£550 including installation. Larger windows or those with triple glazing range from £600-£900. Bay windows start at £1,800 for a three-panel configuration, while patio doors begin around £1,200 for a standard two-panel sliding design.

Factors affecting cost include frame color (woodgrain finishes add 10-15%), hardware quality (upgraded multi-point locking systems cost an extra £40-£60 per window), and any structural work needed to prepare openings. Replacing all windows in a typical three-bedroom semi-detached house ranges from £4,500 to £7,500. We provide detailed written quotations after a free home survey, with no hidden charges. Payment plans are available for larger projects.

Installation can proceed in most weather conditions, though extreme situations may require postponement. Light rain doesn't prevent work, as we use temporary weather protection to keep openings covered during fitting. However, heavy downpours or storms pose risks to both installers and your property's interior, so we reschedule when forecasts predict severe weather.

Temperature affects sealant curing - silicone and foam need temperatures above 5°C to set properly. Winter installations are feasible but may take slightly longer as we allow extra time for materials to reach working temperature. High winds above 30mph make handling large panels dangerous, particularly for upper-floor installations. We monitor weather forecasts closely and contact you 24-48 hours before scheduled work if conditions look unfavorable, rearranging at your convenience without penalty.

PVC windows need minimal upkeep compared to other materials. Clean frames every 3-4 months using warm water with mild detergent - avoid abrasive cleaners or solvents that can damage the surface. Wipe down with a soft cloth, paying attention to corners where dirt accumulates. Glass can be cleaned with standard window cleaning products.

Check and clean drainage holes at the bottom of frames twice yearly to prevent water buildup. Lubricate hinges and moving parts annually with light machine oil - just a few drops per hinge. Inspect rubber seals for wear and wipe them with silicone spray to maintain flexibility. Adjust handles if they become loose by tightening the screws beneath the cover plate. These simple tasks take 15-20 minutes per window annually and significantly extend the lifespan of your installation.

Modern PVC windows deliver excellent thermal performance when properly specified. The multi-chamber profile design creates insulating air pockets that reduce heat transfer. Standard double-glazed units achieve U-values of 1.4 W/m²K, meeting and exceeding UK Building Regulations requirements of 1.6 W/m²K. Triple glazing can reach 0.8 W/m²K, suitable for passive house standards.

Energy savings are measurable - replacing single-glazed windows with double-glazed PVC can reduce heating costs by £100-£180 annually for an average three-bedroom house in London. The argon gas filling between panes provides 30% better insulation than air-filled units. Low-E coatings reflect heat back into rooms during winter while blocking solar gain in summer. Proper installation is crucial - even small gaps can reduce efficiency by 20-25%, which is why professional fitting matters.

White remains the most popular choice, accounting for about 60% of installations, but numerous alternatives exist. Smooth white, brilliant white, and cream provide classic appearances. Woodgrain foil finishes replicate oak, rosewood, mahogany, or walnut textures - these are applied during manufacturing and won't peel or fade for decades.

Grey tones including anthracite, slate, and light grey have grown in popularity, particularly for contemporary properties. Dual-color options allow different colors inside and outside - common combinations include white interior with grey exterior, or cream inside with rosewood outside. Some profiles accept painted finishes in custom RAL colors, though this increases cost by 20-30%. All colored finishes include UV-resistant treatments to prevent discoloration from sunlight exposure. We bring sample frames to the survey so you can see exactly how colors look in your home's lighting.

Modern PVC windows incorporate multiple security features as standard. Multi-point locking systems engage at 5-7 points around the frame when locked, making forced entry significantly harder than older single-point locks. Internal beading means glazing can only be removed from inside, preventing glass being popped out from outside.

Frames include steel reinforcement within the PVC profile, providing structural strength that resists crowbar attacks. Upgraded options include anti-drill cylinders, sash jammers, and laminated glass that holds together even when shattered. Our installations meet PAS 24 security standards, which insurance companies recognize - some insurers offer premium discounts for homes with certified secure windows. Ground-floor and easily accessible windows should have restrictors that limit opening to 100mm for ventilation while maintaining security. All hardware is tested to withstand 10,000 operation cycles.

We take extensive precautions to minimize disruption. Before starting, installers lay protective sheeting on floors from the entry point to each window location, covering carpets and furniture. Dust sheets are placed beneath each window to catch debris during removal. Most work happens from outside where possible, with old frames passed through openings rather than carried through rooms.

Removing old windows does create some dust and debris, but we contain this with plastic sheeting sealed around openings. Vacuum cleaners are used throughout the process, not just at the end. We remove all old frames, packaging, and waste materials from your property on the same day. After installation, we thoroughly clean window sills, surrounding walls, and floors. Most customers are surprised at how tidy the process is - you can typically use rooms normally within an hour of completion.

We manufacture windows in various styles to suit different architectural periods and preferences. Casement windows are the most common, with side-hung or top-hung opening sashes. Tilt and turn windows open inward for easy cleaning and provide both tilt ventilation and full opening. Sliding sash windows replicate traditional Victorian designs with authentic detailing including Georgian bars and decorative horns.

Bay and bow windows create additional internal space while adding character to facades. Fixed picture windows maximize light in living areas. French casement windows have no central mullion, offering unobstructed views when fully open. Cottage-style windows feature smaller panes divided by glazing bars. Each style is available in the full range of colors and glazing options. During the survey, we discuss which styles best complement your property's architecture while meeting your practical requirements for ventilation, light, and access.

Contact us immediately if damage occurs. For warranty-covered issues like seal failure, hardware malfunction, or manufacturing defects, we arrange a free assessment within 48 hours and complete repairs within 5-7 working days. Replacement parts are ordered directly from manufacturers to ensure compatibility.

Accidental damage like broken glass from impact isn't covered by warranty but we provide repair services at competitive rates. A standard double-glazed unit replacement costs £120-£180 depending on size, completed within 3-5 days of ordering. Emergency boarding is available for severe damage to secure your property immediately. We maintain relationships with glass suppliers across London, enabling faster turnaround than many competitors. For insurance claims, we provide detailed reports and photographs documenting damage. Keep your warranty documentation accessible - it includes our 24-hour contact number for urgent issues.

Several signs indicate replacement is needed. Visible condensation between glass panes means seal failure - this cannot be repaired and requires new glazed units. Draughts around closed windows suggest worn seals or warped frames, increasing heating costs. Difficulty opening, closing, or locking windows indicates hardware wear or frame distortion that compromises security.

Rotting wooden frames, particularly at the bottom where water collects, pose structural risks. Excessive external noise penetration suggests inadequate sound insulation. Rising energy bills may result from heat loss through old single-glazed or poorly sealed windows. Visible damage like cracks, chips, or discoloration affects appearance and performance. If your windows are over 20 years old, replacement likely offers better energy efficiency and security than repairs. We provide free assessments to evaluate condition and recommend whether repair or replacement is more cost-effective for your situation.

Complete disposal of all old materials is included in our installation service at no extra charge. Our team removes old frames, glass, hardware, and packaging from your property on the day of installation. We don't leave any waste for you to handle - everything goes directly into our vehicles.

We're committed to responsible disposal and recycling. PVC frames are taken to specialized recycling facilities where the material is ground down and reprocessed into new products - PVC can be recycled up to 10 times without quality degradation. Glass is separated and sent to recycling plants. Metal components like handles, hinges, and reinforcement are recovered and recycled. Only genuinely non-recyclable materials go to licensed waste facilities. This approach diverts approximately 85% of removed materials from landfill. We hold all necessary waste carrier licenses and provide documentation if required for your records.

We regularly install windows in flats and multi-story buildings across London. For properties above ground floor, we assess access during the initial survey. External scaffolding may be required for buildings above second floor without suitable internal access - we coordinate this with licensed scaffolding contractors if needed, typically adding £400-£800 to project costs depending on height and duration.

Many modern flats allow installation from inside without scaffolding, particularly when replacing existing windows of similar size. For leasehold properties, you'll need written permission from the freeholder or management company before proceeding - we can provide specification documents to support your application. Building regulations still apply to flat installations. We work efficiently to minimize disruption to neighbors and comply with building management rules regarding working hours and access. Parking for our vehicles is arranged in advance to avoid issues on installation day.

The Window Energy Rating (WER) scheme rates windows from A++ (most efficient) to G (least efficient) based on heat retention, solar gain, and air leakage. A-rated windows have U-values of 1.2 W/m²K or better, B-rated range from 1.2-1.4 W/m²K, and C-rated are 1.4-1.6 W/m²K. These ratings consider the entire window unit including frame, glass, and spacer bars.

For a typical London home, upgrading from C-rated to A-rated windows saves approximately £25-£35 annually per window in heating costs. Over a 25-year lifespan, this amounts to £625-£875 per window. A-rated windows cost about 10-15% more than C-rated equivalents initially, but the investment pays back within 8-10 years through energy savings. Building regulations require minimum C-rating for replacement windows, though we recommend A-rated for north-facing rooms and properties in exposed locations. All our quotations clearly state the energy rating of proposed windows.

Lead times depend on several factors including order complexity and current workload. Standard white casement windows in common sizes can often be manufactured within 2-3 weeks of order confirmation. Custom colors, woodgrain finishes, or unusual sizes typically require 3-4 weeks. Complex projects involving bay windows, shaped units, or specialized glazing may take 4-6 weeks from order to delivery.

Once windows arrive at our facility, we schedule installation within 5-7 days at a time convenient for you. During busy periods like spring and early summer, lead times may extend by 1-2 weeks. We provide accurate timescales when you accept the quotation and keep you updated if any delays occur. Rush orders can sometimes be accommodated for an additional fee if you have urgent requirements. After accepting the quote, we request a deposit of 30% to commence manufacture, with the balance due on completion. Contact us at +44 20 8765 4321 to discuss your preferred timescale.