Transform Your Home with Premium Leaded Windows

Enhance your home with premium leaded windows. Our in-house surveyors and installers measure and fit every window with precision, ensuring security and a long-lasting result. Our FENSA registration (33081) keeps the work compliant, backed by a 10-year insurance-backed guarantee for lasting reassurance.

Dimensions Max size 2.5M high x 1.5M wide
Thermally Broken As standard
Glass Astragal bars, Satin, Double Glazed

Professional Leaded Windows Installation and Replacement Services

As a leading leaded window installer founded in 2009, Bowalker provides professional leaded window installation and replacement services for homeowners seeking decorative glazing solutions that improve property character, privacy, thermal efficiency and natural light. Our experienced in-house window installers measure, install and replace a wide range of bespoke leaded windows, including Georgian, diamond, square, Queen Anne and stained glass leaded designs, ensuring every installation complements the property’s architectural style and requirements.

Our leaded window installation and replacement services support traditional, period, cottage and modern properties with energy-efficient double glazing, decorative glass options, corrosion-resistant lead cames and secure locking systems designed to reduce heat loss and improve insulation. Each leaded window replacement is completed with weather-resistant materials and precise workmanship for long-term performance and kerb appeal.

Call Bowalker at 01444 810 111 to arrange your free consultation for leaded window installation and replacement services. Our FENSA-registered in-house team delivers reliable installations backed by a 10-year insurance-backed guarantee and transparent fixed-price service.

Materials

Timber
uPVC

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

Our Certifications And Professional Standards

Why Homeowners Choose Bowalker For Leaded Windows Installation Services

Homeowners choose Bowalker for leaded window installation services to receive a 10-year insurance-backed guarantee, a hassle-free full-service experience and skilled in-house installers with no subcontractors. Founded in 2009, we have built our reputation on reliable workmanship, FENSA Reg: 33081 certification and a fully in-house team responsible for every fitting. Our leaded window installation service improves property character, increases natural light and supports thermal efficiency with energy-efficient glazing. We also provide a fixed-price guarantee and transparent pricing, ensuring a smooth process from consultation to completion.

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

Types of Leaded Windows We Install and Replace

Diamond leaded windows feature a distinctive diamond-pattern lead framework set within individual glass panes, creating a decorative finish that complements period, Victorian and modern properties alike. At Bowalker, we install and replace diamond leaded windows with energy-efficient glazing, weather-resistant frames and secure locking systems.

Our in-house installers handle every aspect of the fitting process, ensuring precise installation, improved thermal performance and lasting kerb appeal for your home.

At Bowalker, our square leaded window installations add a timeless and structured appearance to modern, cottage, Tudor and traditional homes. Each window features hand-formed lead cames arranged in a precise square pattern.

They can be fitted on any type of frame, including modern uPVC timber-look frames, aluminium or wooden frames, to create a clean architectural finish with improved natural light and property character. Our experienced window installers replace every window with thermally efficient double glazing, corrosion-resistant lead cames and secure multi-point locking systems for reliable performance, improved insulation and a seamless installation experience.

We install and replace Queen Anne leaded windows featuring elegant circular, fan-shaped and geometric lead patterns that add decorative character to period, heritage and traditionally styled properties. Inspired by late Victorian and Edwardian architecture, these windows are crafted in timber, aluminium or uPVC and paired with modern double glazing for thermal efficiency and security.

The result preserves the ornate, structured aesthetic the style is known for, whilst meeting the performance demands of a contemporary home.

Georgian leaded windows feature a classic symmetrical design inspired by traditional 18th-century architecture, making them suitable for townhouses, period properties and traditionally styled homes. We install these windows to improve natural light whilst adding a refined and timeless appearance to the property.

Our experienced window installation team installs and replaces every window with thermally efficient double glazing, corrosion-resistant lead cames, weather-resistant frames and secure multi-point locking systems for reliable insulation, precise workmanship and lasting kerb appeal.

Our coloured film leaded windows (also known as stained glass) are a cost-effective alternative to traditional stained glass, recreating the decorative appearance of stained glass using high-quality adhesive colour film applied directly to individual glass panes within a lead framework. We install and replace these windows in a wide range of colours and patterns, helping homeowners achieve a vibrant and decorative finish.

To support long-term durability and thermal performance, every installation includes fade-resistant film, corrosion-resistant lead cames and thermally efficient double glazing.

Our bespoke leaded windows are designed and crafted entirely to your specification, allowing homeowners to choose their own lead pattern, glass type, colour and finish to create a truly unique window tailored to their property. Available in timber, aluminium or uPVC with modern double glazing, each window is built to meet current thermal and security standards whilst reflecting the individual character of your home.

Whether traditional, period or contemporary in style, these windows provide a distinctive appearance alongside excellent thermal efficiency, durability and long-term performance.

What Are the Benefits of Installing Leaded Windows?

Installing leaded windows improves kerb appeal with decorative glass, combines classic style with modern double glazing, offers privacy through obscure or decorative glass and adds traditional British character to the property. Modern leaded windows also provide better insulation with energy-efficient glazing whilst requiring minimal cleaning and maintenance for long-term performance and appearance.

Six benefits of installing leaded windows include:

Improves Kerb Appeal with Decorative Glass

Adds visual character and traditional styling, enhancing the property’s exterior appearance.

Combines Classic Style with Modern Double Glazing

Maintains a traditional leaded design whilst supporting thermal efficiency and indoor comfort.

Offers Privacy with Obscure or Decorative Glass

Reduces outside visibility whilst still allowing natural light into the property.

Adds Traditional British Character

Complements period, cottage, Victorian and traditionally styled homes with authentic decorative detailing.

Provides Better Insulation

Energy-efficient glazing helps reduce heat loss and maintain consistent indoor temperatures.

Requires Minimal Cleaning and Maintenance

Modern materials and durable leaded designs support long-term performance with reduced upkeep.

How to Get Started With Leaded Windows Installation and Replacement at Bowalker?

Getting started with leaded window installation and replacement at Bowalker involves booking a free consultation, receiving a no-obligation quote and proceeding with installation by our experienced in-house team. Our team carefully assesses your property, recommends suitable leaded window styles such as Georgian, diamond and Queen Anne designs, and ensures every installation and replacement complements your property’s character whilst meeting energy-efficiency, security and performance requirements.

Get In Touch

Fill out the form and we’ll get back to you shortly.

Areas we Serve

Bowalker provides professional leaded window installation and replacement services across Sussex, Surrey and London, delivering high-quality, premium leaded windows with precision and care. Our leaded window installation team ensures consistent workmanship, reliable installation and continuous support for homeowners throughout these regions.

What Our Happy Customers Say

EXCELLENT

Based on 36 reviews

Google Review

Write a Review

Marchants Estate Agents Hassocks 2 weeks ago

Excellent service from a local independent company. Highly recommend.

Andy Clarke 3 days ago

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.

Abi Hosier a month ago

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

steph park a month ago

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

Nic Downer Edited 3 months ago

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

Mark Fitzpatrick 4 months ago

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.

mark Matthew 4 months ago

5 stars! I recently had all the windows in my home replaced by Bowalker Windows and couldn’t be happier with the result. From my very first contact I worked with Zack Newman — he was professional, knowledgeable, and transparent about pricing and timelines. The installation team arrived on time, worked efficiently, and left the house clean. The new windows look fantastic, operate smoothly, and have already made a noticeable difference in comfort and noise reduction. Excellent customer service from start to finish — I highly recommend Zack and Bowalker Windows to anyone looking for quality work and a hassle-free experience.

Graeme Edited 5 months ago

I am 9 years into our windows installation from Bowalker Windows. I emailed them on Sunday with an issue and by 3pm Monday afternoon they were at my home sorting the issue. This company's attitude to exceeding customer service and going the extra mile is in their DNA. These guys are just amazing from cradle to grave when it comes to windows and doors. I wouldn't go anywhere else. Simply fantastic.

Tatiana Gurova 6 months ago

The installation went quickly and without any problems. I recommended them as excellent specialists.

Joanna Steadman 6 months ago

We have used Bowalker on several occasions for replacement windows and doors and have always been pleased with the work, product price snd communication

Meet Our Team

Our team at Bowalker comprises highly skilled and experienced leaded window installers who deliver precise and reliable installations and replacements with careful attention to detail. Every leaded window installation is completed fully in-house, ensuring consistent workmanship, accountability and a smooth experience from consultation to completion. We focus on improving property character, natural light, thermal efficiency and long-term performance whilst maintaining high standards of customer satisfaction throughout every project.

Leaded Windows Project Gallery

Two anthracite sash windows in Hassocks

Ready to Upgrade Your Home with Bowalker Leaded Windows?

Installing leaded windows can improve your property’s character, privacy and overall appearance whilst allowing natural light to brighten interior spaces. Bowalker provides a full-service installation and replacement experience with an experienced in-house fitting team, premium energy-efficient glazing and a 10-year insurance-backed guarantee for reliable quality and performance.

Call 01444 810 111 today to book your free leaded window consultation and receive a no-obligation quote. Our experienced leaded window installation team manages every stage with precision, ensuring your windows are fitted securely for lasting durability, thermal efficiency and decorative appeal.

Frequently Asked Questions

What Are Leaded Windows?

Leaded windows feature small sections of glass joined together using H-shaped lead strips called lead cames and are also known as leadlights. Commonly designed in diamond or square patterns, these windows are widely used in cottages, period homes and traditional properties to provide a classic decorative appearance, reliable structural support and improved privacy whilst maintaining natural light.

How Much Does Leaded Window Installation Cost?

Leaded window installation (labour only) costs from £100 to £375+ per window, depending on window size, lead pattern design, glazing type, frame material and installation complexity. This covers the fitting of a new or supplied window unit.

How Much Does It Cost to Replace Leaded Windows?

Full leaded window replacement (supply and fit) costs between £500 and £3,000 per window, depending on window size, lead pattern design, glazing type, frame material and replacement complexity. This price includes the window unit, all materials and installation. Custom leaded designs, decorative glass options and full frame replacements can increase the overall cost.

How Long Does Leaded Window Installation Take?

Installing three leaded windows will typically take a team of two experienced installers one day. Standard leaded glass replacements take only a few hours, whilst larger or more decorative installations require additional time depending on the lead pattern complexity, frame replacement requirements, property access and glazing specifications.

What Guarantee Do You Provide on Leaded Window Installation?

Bowalker Windows Limited provides a 10-year insurance-backed guarantee on every leaded window installation, helping homeowners receive long-lasting performance and reliable workmanship. All leaded window installations also comply with FENSA standards (Reg: 33081), ensuring every fitting meets professional requirements for safety, glazing performance, thermal efficiency and structural reliability.

Do I Need to Be at Home During the Installation?

No, you do not need to be at home for the leaded window installation, provided we have access to the property and your installation preferences are confirmed in advance. Our experienced in-house leaded window installation team completes every fitting professionally, ensuring careful handling, property security and installation completed according to your agreed specifications.

Do I Need Planning Permission for Leaded Windows?

In most cases, replacing like-for-like windows does not require planning permission under permitted development rights. However, if your property is a listed building or sits within a conservation area, you may need consent before making changes to your windows. Our team can advise you during your free consultation, and we ensure all installations comply with current building regulations and FENSA requirements.

What Are the Maintenance Tips for Leaded Windows?

The maintenance tips for leaded windows include cleaning the glass with pH-neutral solutions, inspecting the window for structural issues or damaged lead cames and addressing natural oxidation to maintain long-term appearance and durability. Regular checks on glazing seals, frames and locking systems also help support thermal performance, security and reliable operation. Silicone spray should be used on the hinges and in the lock to keep everything working well.