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Transform Your Home with Premium uPVC Windows
Improve your home’s comfort, appearance and energy efficiency with premium uPVC windows from Bowalker. Our in-house installers survey and install every window with precision, delivering a weathertight, draught-resistant finish that improves thermal efficiency and comfort. As a FENSA-registered company (33081), qualifying installations are completed to current requirements and backed by a 10-year insurance-backed guarantee.
- Dimensions Max size 2.5M high x 1.5M wide
- Thermally Broken As standard
- Glass Astragal bars, Satin, Double Glazed
Certifications And Partners
Professional uPVC Windows Installation and Replacement Services
As a trusted uPVC window installer founded in 2009, Bowalker provides premium uPVC window installation and replacement services for homeowners seeking modern glazing solutions that improve kerb appeal, thermal efficiency and everyday comfort. Our in-house window installers survey, install and replace a wide range of uPVC window styles, including casement, tilt and turn, bay, sash, flush and slimline designs, ensuring every window complements the property’s architectural character and performance requirements.
Whether you are replacing draughty, failed or ageing frames or upgrading to energy-efficient double-glazed units for the first time, our uPVC window replacement service is tailored to your property. We use A-rated Window Energy Rating glazing specifications, multi-chambered uPVC frames and warm-edge spacer bars to minimise heat loss and reduce energy bills, alongside secure multipoint locking systems and weather-resistant seals to improve home security and long-term durability.
Call Bowalker on 01444 810 111 to arrange your free consultation for premium uPVC window installation and replacement services. From initial survey through to final inspection, every installation is completed to current Building Regulations standards, with FENSA registration (33081) and a 10-year insurance-backed guarantee provided for qualifying replacement work.
Materials
uPVC
Timber
Standard Hardware
Chrome
Satin
Gold Knob
Antique Black Knob
Standard Colours
Smooth White
Cream
Painswick Grey
Chartwell Green
Anthracite Grey
Irish Oak
Dual Colour
Paint to Order
Glass
Triple Glazed
Satin
Astragal Bars
Standard Layouts
Single
Double
Triple
Types Of Windows We Install
uPVC Sash Windows
uPVC Sash Windows
Vertical sliding operation, authentic sash detailing and modern low-maintenance materials make uPVC sash windows a practical choice for Victorian, Georgian and Edwardian properties where period character must be preserved without the maintenance demands of timber. Modern spiral balance systems replace traditional weight-and-cord mechanisms to provide smoother, quieter operation with reduced maintenance. We install and replace uPVC sash windows with energy-efficient Low-E glazing, secure multipoint locking systems, heritage-style glazing bars, sash horns and accurately proportioned frames, improving insulation and everyday usability whilst maintaining traditional appearance.
Learn More →uPVC Flush Windows
uPVC Flush Windows
Sitting flush with the outer frame rather than projecting forward, uPVC flush windows recreate the flat exterior profile of traditional timber joinery whilst offering the durability and weather resistance of modern materials. Cottages, conservation properties and period homes benefit from this design where authentic appearance and improved performance are priorities. Our in-house installers survey, install and replace these windows with slim flush profiles, Low-E glazing, secure multipoint locking systems and realistic woodgrain foil finishes, creating a traditional appearance whilst improving insulation, security and long-term reliability.
Learn More →Period properties, conservation areas and character homes requiring traditional styling without the upkeep of timber benefit from uPVC heritage windows. Heritage profiles, woodgrain foil finishes, decorative glazing bars and period detailing recreate the appearance of painted timber whilst reducing maintenance requirements. Bowalker Windows installs and replaces these windows with Low-E glazing options, secure multipoint locking systems and accurately surveyed frames, preserving your property's character whilst improving comfort, durability and thermal performance.
Learn More →Projecting outward from the building line, uPVC bay windows increase natural light, add usable interior space and improve kerb appeal whilst combining the classic bay form with the low-maintenance benefits of modern uPVC frames. Victorian homes, contemporary properties and extensions all suit this configuration. We install and replace these windows with multi-chambered profiles, Low-E glazing, warm-edge spacer bars, secure multipoint locking and durable finishes, creating brighter interiors with reliable thermal performance across the full bay structure.
Learn More →A distinctive curved profile and strong architectural presence make uPVC arched windows well suited to period homes, extensions and feature elevations where character and natural light are equally important. Specialist curved profiles maintain accurate proportions and consistent sightlines across the arch. Our experienced in-house installers survey, install and replace uPVC arched windows with precision-formed frames, Low-E glazing, secure hardware and weather-resistant seals, ensuring each installation complements the property's design whilst improving thermal comfort and long-term reliability.
Learn More →Classic rural character and modern low-maintenance performance come together in uPVC cottage windows, making them well suited to cottages, countryside homes and character properties where traditional detailing and improved energy efficiency are both priorities. Heritage-style finishes, Georgian bars and astragal detailing recreate period charm without the upkeep associated with timber. Our installations include secure multipoint locking systems, Low-E glazing, decorative glazing options and accurately fitted profiles, delivering dependable insulation and everyday performance throughout.
Learn More →Maximising natural light and creating unobstructed outdoor views are the primary advantages of uPVC picture windows, where large fixed glazed areas combine with multi-chambered uPVC profiles for reliable thermal performance. Living rooms, extensions and feature elevations benefit most from this configuration. Bowalker Windows installs and replaces these windows with Low-E glazing, argon-filled sealed units, secure frames and clean sightlines, delivering improved insulation, low maintenance and a strong visual connection with the outside without visible hinges or handles interrupting the glazed area.
Learn More →Double Glazed uPVC Windows
Double Glazed uPVC Windows
Two panes of Low-E glass separated by an argon-filled sealed unit and warm-edge spacer bars allow double glazed uPVC windows to reduce heat loss, minimise condensation and improve acoustic comfort without altering the window's external appearance. Most homes benefit from this combination of reliable energy performance, security and low maintenance. Each window is fitted with multi-chambered uPVC profiles and carefully sealed glazing units, helping improve insulation, reduce draughts and maintain comfortable indoor temperatures throughout the year.
Learn More →Exposed properties, busy locations and homes where energy efficiency is a priority benefit most from triple glazed uPVC windows, where three panes of Low-E glass are separated by two insulated cavities to reduce heat loss and outside noise without compromising the low-maintenance benefits of uPVC frames. Our in-house installers survey, install and replace these windows with high-performance glazing, durable multi-chambered profiles and secure hardware, creating warmer and quieter interiors with improved year-round comfort.
Learn More →Bathrooms, entrance halls and ground-floor rooms benefit from obscure glass uPVC windows, where textured privacy glazing limits direct visibility whilst allowing natural daylight to pass freely through the frame. Different privacy levels and patterned finishes allow homeowners to balance light transmission and visibility according to the room's requirements. We install and replace these windows with privacy-rated glazing, secure uPVC frames and reliable seals, creating comfortable private spaces without reducing natural light.
Learn More →A smooth acid-etched frosted surface that diffuses daylight evenly whilst limiting direct visibility makes satin glass uPVC windows well suited to bathrooms, hallways, offices and entrance areas where privacy and a refined appearance are priorities. Unlike textured obscure glass, satin glazing provides a consistent finish across the entire surface. Our team installs and replaces these windows with accurately fitted frames, energy-efficient glazing and secure hardware, delivering an understated finish with dependable thermal performance and long-term reliability.
Learn More →Decorative leaded glazing patterns and durable low-maintenance uPVC frames combine in leaded glass uPVC windows, making them suitable for period properties and character homes where traditional detailing is important. Leaded designs recreate authentic divided-light appearances whilst benefiting from modern sealed glazing technology. By carefully matching lead patterns, specifying secure glazing units and fitting durable profiles, Bowalker installs and replaces these windows whilst preserving traditional appearance and improving energy efficiency, weather resistance and security throughout.
Learn More →Entrance halls, staircases and period homes where architectural detail is important benefit from stained glass uPVC windows, where coloured decorative glazing sits within a modern low-maintenance frame to create a distinctive focal point. Each installation is planned around surrounding finishes to ensure colour, proportion and frame detailing work together. Glazing specification, design requirements and precise fitting are all managed by our team, ensuring each window maintains architectural character whilst improving comfort, security and long-term durability.
Learn More →Adding thermal and acoustic performance without replacing an existing window system, secondary glazing for uPVC windows can provide an additional insulation layer where retaining the existing frames is preferred. A discreet internal glazed panel reduces draughts, heat loss and external noise whilst leaving the original windows untouched. Our in-house installers survey and install secondary glazing with careful alignment, improving insulation and acoustic comfort whilst maintaining the existing appearance of the property.
Learn More →Fixed uPVC Windows
Fixed uPVC Windows
Large non-opening glazed areas that maximise natural light and deliver excellent insulation define fixed uPVC windows, making them well suited to feature elevations, stairwells, extensions and rooms where ventilation is provided by surrounding opening windows. The absence of hinges or handles creates cleaner sightlines and allows a greater glazed area across the frame. We install and replace these windows with multi-chambered profiles, Low-E glazing, secure frames and carefully surveyed openings, creating bright interiors with reliable thermal performance and a clean architectural finish.
Learn More →Casement uPVC Windows
Casement uPVC Windows
Suitable for almost every property type from period homes to contemporary houses, casement uPVC windows provide practical ventilation through side-hung or top-hung opening sashes within a durable, energy-efficient uPVC frame. Their versatility makes them one of the most widely installed residential window styles in the UK. Every casement uPVC window we install and replace is fitted with multi-chambered profiles, Low-E glazing, secure multipoint locking systems and accurately surveyed frames, delivering dependable everyday operation, improved thermal comfort and long-term reliability.
Learn More →Two opening functions within a single slim frame make tilt and turn uPVC windows particularly practical for modern homes, apartments and upper-floor rooms where controlled ventilation and easy internal cleaning are priorities. The sash tilts inward from the top for secure everyday airflow or swings fully open for cleaning, maintenance and increased ventilation. Our in-house installers install and replace these windows with secure multipoint locking hardware, energy-efficient glazing and precision-engineered mechanisms, combining flexible functionality with low-maintenance uPVC performance.
Learn More →Smooth sliding operation and the authentic proportions of traditional sash windows make vertical sliding uPVC windows the natural choice for Victorian, Georgian and Edwardian properties where period styling and modern performance need to work together. Spiral balance systems replace traditional weight-and-cord mechanisms, providing smoother, quieter operation with reduced maintenance. We install and replace these windows with secure multipoint locking systems, energy-efficient glazing, sash horn detailing, heritage-style glazing bars and accurately proportioned frames, preserving period character whilst improving insulation, draught resistance and everyday usability.
Learn More →Multiple folding panels that stack neatly to create wide openings make bifold uPVC windows well suited to extensions, garden rooms and open-plan spaces where natural light, ventilation and a stronger connection with outdoor areas are priorities. Slim uPVC profiles maintain consistent sightlines across the full opening when closed, while modern hardware supports smooth operation and reliable security. Our in-house installers install and replace these windows with precision-engineered tracking systems, secure locking hardware, durable frames and carefully aligned panels, creating practical, light-filled spaces with long-term reliability.
Learn More →Window Brands We Install
Our team at Bowalker is made up of highly skilled, certified window installers and specialists who deliver premium, luxury installations with precision and care. Every window installers work fully in-house, ensuring consistent quality, accountability, and a seamless experience from consultation to completion. We are committed to making your home warm, safe, and stylish, focusing on customer satisfaction and long-lasting performance.
Not sure which brand is right for your home? Talk to our team →
Why Homeowners Choose Bowalker For uPVC Windows and Installation Services
Homeowners choose Bowalker for uPVC window installation and replacement services because every stage, from the initial survey through to final inspection, is managed by our own in-house team, with no subcontractors involved. Founded in 2009, we have built a trusted reputation across Sussex, Surrey and London, supported by FENSA registration (33081) and a 10-year insurance-backed guarantee. We provide fixed-price, no-obligation quotes with transparent pricing so there are no unexpected costs at any point during your installation.
10-year Insurance-backed Guarantee
FENSA Registered And Fully Compliant
Hassle-free, Full-service Experience
In-house Installers (No Subcontractors)
Fixed Pricing Guarantee, No Surprises
uPVC Windows Project Gallery
What Are the Benefits of Installing uPVC Windows?
Installing uPVC windows provides improved thermal insulation, reduced outside noise, enhanced property appearance, reliable security, low-maintenance durability and increased property value. Modern uPVC windows use durable multi-chambered frames, energy-efficient glazing and secure locking systems to improve indoor comfort, minimise heat loss and complement both traditional and contemporary property styles.
Six key benefits of installing uPVC windows include:
Improves Thermal Efficiency
Multi-chambered uPVC frames and A-rated double or triple glazing reduce heat loss through windows by up to 70%, improve thermal efficiency and help maintain comfortable room temperatures throughout the year.
Reduces External Noise
Well-sealed uPVC frames combined with suitable acoustic glazing options can reduce external noise by 35-40 decibels, improving comfort in homes near roads, railways or busy areas.
Enhances Property Appearance
Modern uPVC windows are available in a wide range of colours, woodgrain foils and architectural profiles, from slim-sightline contemporary frames to heritage sash designs, allowing the replacement to complement a Victorian terrace, a 1930s semi or a modern new build.
Supports Better Home Security
Bowalker installs uPVC windows fitted with multi-point locking systems, internally beaded glazing and PAS 24-compliant hardware, which is available on suitable specifications where required.
Provides Low-Maintenance Durability
Unlike timber frames, which require regular sanding, repainting and resealing, uPVC frames resist rot, warping and corrosion. Quality uPVC profiles can provide 20 to 35 years of reliable performance when correctly installed and maintained.
Increases Property Value
Energy-efficient windows can improve an EPC rating and increase a property's market appeal, with double glazing widely cited by estate agents as one of the most cost-effective improvements a homeowner can make before sale.
How to Get Started With uPVC Windows Installation and Replacement at Bowalker
Getting started with uPVC window installation and replacement at Bowalker begins with arranging your free consultation and receiving a fixed-price, no-obligation quote from our experienced installation team. Our uPVC window installers assess your property and recommend suitable window styles, including sliding windows, casement windows, tilt and turn windows, bay windows and sash windows. Each uPVC window installation and replacement is tailored to complement your property while improving thermal efficiency, natural light, security and long-term durability.
- Book Your Free Consultation
- Receive Your No-obligation Quote
- Proceed To Installation
Get In Touch
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Areas we Serve
Bowalker provides professional uPVC window installation and replacement services across Sussex, Surrey and London, delivering high-quality uPVC windows with precision and care. Our skilled uPVC window installers deliver reliable workmanship, precise fitting and ongoing support for homeowners seeking durable, energy-efficient, low-maintenance uPVC window solutions throughout these regions.
What Our Happy Customers Say
We have had a front door and side panel installed,Team Tim did a great job and were very professional and knowledgeable. Wouldn’t hesitate to recommend the company and this team to any one !
Simon and Brandon fitted our three windows in our garage > studio conversion and were great through the day. Arrived when they said they would, were very polite, respectful and pleasant people. Found answers to questions we didn’t realise about the installation and though we haven’t yet finished the project the windows are a very exciting and big step forward for us. Would recommend this company and this team without hesitation. Thank you!
Had a problem with our door which was installed 3 years ago - Bowalker - Dean - came to site within 24 hours and helped resolved- thank you ! Very pleased with professional and prompt service
Excellent service from a local independent company. Highly recommend.
I had replacement windows installed. Design and advice was good and cost was competitive. Installation was started in a good time to a good standard.
Bowalker have been incredibly helpful and provided me with extremely useful information about the windows and doors at a property I moved into, previously supplied by them. Great customer service, really recommend
Bowalker replaced all of our windows and patio doors in November. They are very efficient and got the job done in the pouring rain but did it quick and professionally. We had a couple of teething issues with the doors after completion and they did not hesitate to come out and rectify the issue. Excellent customer service and a friendly team. Would highly recommend
We had a total of 6 windows fitted at end of June 2025 (2 bathroom(frosted), 1 hallway,1 dining room and two big bay windows complete with 2 window boards). Took 5 days in total as bay windows were load bearing ,the window boards were not in warehouse so took extra time to arrive and fit , the silicone/mastic finish wasn’t great and they cut one end of a window board wrong , but after a telephone call a new team of fitters came out and rectified the mistakes of original fitters that we had noticed , a window pane had got scratched in delivery so they replaced that as well. This was a big job that entailed some mistakes but over time was rectified by bowalker windows by sending out another team of fitters to fix some minor mistakes of original fitters . We went on a recommendation from a work colleague who had used Bowalker windows in the past as were very good. Maybe just improve your fitters mastic silicone skills a bit more but is is an old house of 110 years and nothing is level in this house
As a property developer operating across Brighton and Hove, I rely on trusted trades who consistently deliver — and Bowalker Windows Ltd, led by Zack Newman, is one of those partners. We specify their windows across all our developments because their products meet the high standards our clients expect, installations are completed on schedule, and site coordination with our contractors is seamless. Zack is responsive, pragmatic, and straightforward about lead times and costs, which makes planning and handovers far easier. Their workmanship is excellent, energy-performance claims are reliable, and they stand behind their warranty. Competitive pricing, professional teams, and reliable aftercare mean we’ll continue to use Bowalker Windows on future projects. Highly recommended for any developer or home owners in the Brighton & Hove area.
Meet Our Team
Our team at Bowalker comprises highly skilled uPVC window installers with hands-on experience across a wide range of property types, frame materials and glazing specifications. Every installer works fully in-house, ensuring consistent workmanship, clear accountability and a smooth experience from initial survey and consultation through to final inspection and completion.
Zack Newman
Director
Anthony Bowyer
Senior Surveyor
Dean Lloyd
Operations Manager
Angela Georgant
Financial Controller
Jack Harsford
Installer
Leon Prichard
Installer
Tim Cooper
Installer
Lloyd Walker
Installer
Tim Fraser
Installer
Brandon Bowyer
Installer
Zack Newman
Director
Anthony Bowyer
Senior Surveyor
Dean Lloyd
Operations Manager
Angela Georgant
Financial Controller
Jack Harsford
Installer
Leon Prichard
Installer
Tim Cooper
Installer
Lloyd Walker
Installer
Tim Fraser
Installer
Brandon Bowyer
Installer
See Our Work In Action
- Doors
- Rooflight
- Doors
- Windows
Ready To Get Started With Bowalker uPVC Windows?
Installing uPVC windows can improve your home’s thermal efficiency, exterior appearance and overall comfort while providing better insulation and low-maintenance durability. Bowalker provides a full-service uPVC window installation and replacement experience with a fully in-house team of uPVC window installers, premium glazing systems and a 10-year insurance-backed guarantee to ensure reliable quality and dependable performance.
Call 01444 810 111 today to arrange your free uPVC window consultation and receive a no-obligation quote. Our experienced uPVC window installation and replacement team manages every stage with precision, ensuring your uPVC windows are professionally fitted to improve energy efficiency, reduce outside noise and complement your property’s architectural style.
Enhance the comfort, style, and energy efficiency of your home with Bowalker uPVC windows
Frequently Asked Questions
What are uPVC Windows?
uPVC windows are window systems made from unplasticised polyvinyl chloride, a durable material known for weather resistance, low maintenance and strong thermal performance. They are widely used as an alternative to timber and aluminium windows because uPVC frames resist rotting, warping and corrosion whilst supporting energy-efficient glazing and secure locking systems.
How Long Does uPVC Windows Installation Take?
Individual uPVC windows take between 30 minutes and two hours to install, depending on the size, access and replacement requirements. A typical three-bedroom home can often be completed within 1 to 2 days. Our in-house installers complete every installation with careful preparation, accurate fitting and final checks to ensure reliable performance.
How Do You Clean uPVC Windows?
Clean uPVC windows using warm water, a small amount of mild washing-up liquid and a soft microfibre cloth, working across the frame, sills and rubber seals to remove dirt and grime. Use a non-abrasive glass cleaner or diluted white vinegar solution for the glazing and avoid bleach, white spirit or solvent-based products that can discolour or degrade the uPVC surface finish. Clearing drainage slots with a soft brush and wiping seals regularly helps maintain smooth operation, weatherproofing and long-term performance.
How Do You Choose the Right uPVC Windows for Your Home?
To choose the right uPVC windows, start by matching the window style to your property’s architecture, as casement windows suit most homes, sash designs complement period properties and flush or heritage profiles work well where traditional character is important. Energy-efficiency requirements, ventilation needs and preferred finish should then guide the glazing and hardware specification. During your consultation, we assess your property and recommend uPVC windows that balance appearance, performance and long-term maintenance requirements.
What uPVC Window Design Ideas Should You Consider for Your Home?
Period-style sash designs, flat flush frames, projecting bay windows, arched feature elevations and cottage profiles with decorative glazing bars each create a distinct character and represent the most popular uPVC window design directions for UK homes. Woodgrain foils, coloured frames and different opening configurations allow homeowners to achieve either a traditional or contemporary appearance. Matching these choices with doors and existing architectural features helps create a consistent exterior design throughout.
What Guarantee Do You Provide on uPVC Windows Installation?
Bowalker provides a 10-year insurance-backed guarantee on qualifying uPVC window installation and replacement work. Our FENSA registration (Reg. 33081) confirms that applicable replacement installations meet current Building Regulations for thermal performance, ventilation and safety. We provide the relevant certification after completion, giving homeowners confidence in the quality of the installation.