Transform Your Home with Premium Timber Windows

Transform your home with premium timber window installation and replacement from Bowalker. Our in-house team measures and fits every timber window with precision, ensuring a secure fit, improved thermal efficiency and long-term performance. Backed by FENSA registration (33081) and a 10-year insurance-backed guarantee, every installation is completed to the highest professional standard.

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

Professional Timber Windows Installation And Replacement Services

As a trusted timber window installer founded in 2009, Bowalker provides premium timber window installation and replacement services for homeowners seeking traditional glazing solutions, improving kerb appeal, thermal efficiency and interior comfort. Our in-house window installers measure, supply and fit a wide range of bespoke timber windows across six styles, including Casement, Sash, Bay, Awning, Fixed and Sliding, ensuring each installation complements the property’s architectural style and functional requirements.

Our timber window installation and replacement services cover the full supply and fit process, supporting properties with bespoke timber designs, double-glazed units and heritage-style profiles. We use durable timber materials, energy-efficient glazing and thermal insulation systems to minimise heat loss, with secure multi-point locking systems and weather-resistant finishes fitted as standard to enhance home security and long-term visual appeal.

Call Bowalker on 01444 810 111 to arrange your free consultation for timber window installation and replacement services. From initial survey and supply through to fitting and final inspection, our professional window installers deliver reliable service, backed by FENSA-registered compliance (33081) and a 10-year guarantee.

Materials

Timber
uPVC
Aluminium

Standard Hardware

White
Brushed Chrome
Gold
Chrome

Standard Colours

White woodgrain
Anthracite Grey
Black
Cotswold Green
Biscuit
Silver Oak
Dual Colour
Paint to Order

Glass

Triple Glazed
Astragal Bars
Leaded

Standard Layouts

1 over 2
Single
1 over 1

Our Certifications And Professional Standards

Why Homeowners Choose Bowalker For Timber Windows and Installation Services?

Homeowners choose Bowalker for professional timber window installation and replacement backed by over fifteen years of specialist experience across Sussex, Surrey and London. Every project is handled entirely by our skilled in-house team with no subcontractors involved at any stage, ensuring consistent workmanship and full accountability from consultation through to completion. Our 10-year insurance-backed guarantee, FENSA registration (33081) and fixed-price commitment mean clients receive transparent pricing and dependable results, whether replacing a single window or upgrading an entire property.

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 Timber Windows We Install And Replace

We install and replace Casement Timber Windows, traditionally hinged at the side and opening outward, which are among the most popular and versatile window styles for both period and contemporary properties. Their classic design allows excellent ventilation, easy operation and maximum natural light.

Each installation meets the Part L Building Regulations for thermal performance, combining energy-efficient double glazing, secure multi-point locking systems and weather-resistant timber frames to deliver improved U-values, draught-free comfort and timeless kerb appeal. Our in-house team manages every stage, from initial survey through to final inspection.

At Bowalker, we install and replace Sash Timber Windows, particularly suited to Georgian, Victorian and other period properties where traditional character is a priority. Featuring vertically sliding sashes and precision-crafted timber frames, these windows provide elegant proportions, controlled ventilation and balanced natural light.

Each installation includes energy-efficient double glazing, draught-proof seals, spring-balanced or weighted sliding mechanisms and secure locking systems, improving thermal efficiency and preserving the heritage appearance of your property.

Timber Bay Windows project outward from the main house wall, typically at 30° or 45° angles, creating additional interior space, a deeper window sill and a substantial increase in natural light. We install and replace bespoke Timber Bay Windows to suit a wide range of architectural styles, from Victorian and Edwardian properties to modern homes.

Each installation includes energy-efficient double glazing, weather-resistant timber frames, secure multi-point locking systems and appropriate structural support, providing improved kerb appeal, increased interior volume and durable long-term performance.

Awning Timber Windows feature a top-hinged design that opens outward from the bottom, allowing ventilation even during light rain, making it a practical choice for UK properties. Commonly specified for bathrooms, kitchens and areas where reach is limited, such as above worktops or high on a wall.

Each installation is fitted with trickle vents in compliance with Building Regulations Part F, alongside energy-efficient double glazing, durable timber frames and secure locking systems for improved airflow and long-lasting performance.

Fixed Timber Windows feature non-opening glass panels within precision-crafted timber frames, designed to maximise natural light and provide uninterrupted outdoor views. Well suited to stairwells, above doorways and as feature windows on contemporary or open-plan properties.

Each installation combines energy-efficient double glazing, durable weather-resistant frames and secure sealing systems, ensuring lasting insulation, reduced heat loss and a clean architectural finish for both traditional and modern homes.

At Bowalker, we install and replace Sliding Timber Windows featuring horizontally gliding sashes within precision-crafted timber frames. Ideal for modern and period properties alike, these windows provide wide outdoor views, increased natural light and smooth operation without requiring outward-opening space.

Each installation includes energy-efficient double glazing, durable timber frames and secure locking systems, ensuring effective ventilation, reduced heat loss and dependable long-term performance.

No more windows to show

See Our Work In Action

Doors

Pool House

We helped create a stunning new-build pool house in West Sussex, featuring bespoke cornerless sliding doors and uninterrupted countryside views.

Rooflight

Living Room Extension

Partnership with builder to create a bright, modern living space with aluminium French doors, Bifold doors, matching windows, and a Lantern Rooflight.

Doors

Whole House Renovation

Assisted a developer with a full property renovation with, installing bespoke blue and black aluminium windows and doors.

Windows

Full Window & Door Upgrade

We helped transform an aging building with 56 new white uPVC windows and doors, enhancing thermal efficiency while keeping costs reasonable.

What Are the Benefits of Installing Timber Windows?

Installing timber windows helps improve indoor insulation, reduce outdoor noise, strengthen home security, maintain architectural character and support long-term property performance. Modern timber window systems combine durable wooden frames, advanced double glazing and secure locking mechanisms to maintain comfortable indoor temperatures, lower heat transfer and complement both heritage and contemporary homes.

Six advantages of timber window installation include:

Retains Indoor Heat

Insulated timber frames and energy-efficient glazing help retain internal heat during colder months.

Creates a Quieter Living Space

Timber window construction and modern glazing help limit outside noise from entering the property.

Complements Property Style

Bespoke timber window finishes suit traditional, Victorian, Georgian and modern architectural designs.

Strengthens Window Security

Multi-point locking systems and solid timber frames provide dependable protection for homeowners.

Ensures Reliable Longevity

Weather-protected timber materials support durable performance with reduced maintenance needs.

Enhances Property Value and Salesability

Timber windows improve visual appeal, energy performance and overall market desirability for residential properties.

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

Getting started with timber window installation and replacement at Bowalker begins with arranging your free consultation, receiving a fixed-price, no-obligation quote and scheduling installation with our experienced in-house team. Our timber window installation team assesses your property, recommends a suitable timber window style and ensures every design complements your property’s architectural character, thermal efficiency requirements and long-term performance needs.

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Areas we Serve

Bowalker provides professional timber window installation and replacement services across Sussex, Surrey and London, including Haywards Heath, Crawley, Brighton, Horsham, Guildford, Croydon and the surrounding areas. Our in-house timber window installers ensure reliable installation, consistent service standards and ongoing customer support for homeowners throughout these regions.

What Our Happy Customers Say

EXCELLENT

Based on 36 reviews

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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

Enhance the comfort, style, and energy efficiency of your home with our premium windows and doors, contact us today.

01444 810 111

Meet Our Team

Our team at Bowalker comprises highly skilled timber window installers who deliver premium timber window installations and replacements with precision and attention to detail. All our installers are directly employed, ensuring consistent workmanship, accountability and a smooth experience from consultation through to completion. We are committed to creating comfortable, energy-efficient and visually appealing living spaces, with a focus on customer satisfaction, improved thermal performance, increased natural light and lasting performance.

Timber Windows Project Gallery

Two anthracite sash windows in Hassocks

Ready To Get Started With Bowalker Timber Windows?

Upgrading your home with timber windows can improve thermal comfort, natural light and overall property appearance whilst complementing both traditional and modern architectural styles. Bowalker provides a smooth, fully managed timber window installation service with experienced in-house installers, premium glazing systems and a 10-year insurance-backed guarantee to support lasting quality and dependable performance.

Call 01444 810 111 today to arrange your free timber window consultation and receive a fixed-price, no-obligation quote. Our professional timber window installation and replacement team manages every stage with precision, ensuring accurate fitting, improved energy efficiency and lasting durability for your property.

Enhance the comfort, style, and energy efficiency of your home with our premium windows and doors, contact us today.

01444 810 111

Frequently Asked Questions

What Are Timber Windows?

Timber windows are window frames made from natural hardwood or softwood, valued for their traditional appearance, durable construction, strong insulating performance and long-term structural integrity. Modern timber window systems often use engineered wood to minimise warping and improve dimensional stability, providing a sustainable, energy-efficient and long-lasting alternative to uPVC or aluminium window frames.

How Much Does Timber Windows Installation Cost?

Timber window installation costs range from £700 to £2,000+ per window, depending on the window style, timber material, glazing specification and the complexity of the fitting work. This figure covers the complete supply-and-fit process; if you have already sourced your windows and require installation only, the fitting rate will differ and can be confirmed during your free consultation. Bespoke timber window designs, larger frame sizes, heritage-style profiles and advanced energy-efficient glazing options can all affect the final price.

Every Bowalker installation includes a fixed-price, no-obligation quote before work begins, covering measurement, fitting, glazing installation and final inspection to ensure reliable long-term performance and thermal efficiency, with no hidden costs.

What Types of Timber Glass Are Available?

The most common options include double glazing, triple glazing, toughened glass, laminated glass, frosted glass, acoustic glass and decorative glazing styles. Each option is selected to meet specific requirements, such as heat retention, noise reduction, enhanced security or traditional architectural aesthetics, whilst complementing both modern and period timber window designs.

How Long Does Timber Windows Installation Take?

Timber window installation takes 1 to 3 days, depending on the number of windows, property access and the complexity of the fitting work. Standard timber window replacements are often completed within a single day, whilst bespoke installations or larger properties may require additional time for preparation and finishing.

Our in-house installers also take precise measurements, install glazing, conduct final inspections and confirm compliance with FENSA regulations to ensure accurate fitting, thermal efficiency and reliable long-term performance.

What Guarantee Do You Provide on Timber Windows Installation?

Bowalker Windows Limited provides a 10-year insurance-backed guarantee on every timber window installation and replacement, supporting long-lasting quality and dependable performance. Our timber window installations also comply with FENSA regulations (Reg: 33081), ensuring every installation meets professional standards for safety, glazing efficiency, thermal performance and structural reliability.

Do I Need to Be at Home During the Installation?

You do not need to be present throughout your timber window installation. Provided access arrangements have been agreed and your specifications confirmed in advance, our fully in-house team can complete all fitting work professionally, ensuring careful handling, site security and installation carried out strictly according to your agreed requirements. We will notify you upon completion and walk you through the finished installation at a time that suits you.

How Much Does It Cost to Replace Timber Windows?

The cost to replace timber windows ranges from £700 to £2,000+ per window, depending on the window style, timber type, glazing options, frame size and installation complexity. Bespoke timber window designs, heritage-style replacements and advanced energy-efficient glazing systems can increase the overall replacement cost. Professional timber window replacement includes the removal of existing windows, precise fitting, glazing installation and final inspection to ensure reliable performance and long-term durability.

What Are the Maintenance Tips for Timber Windows?

Maintenance tips for timber windows include regular cleaning with a mild detergent, inspecting painted or stained surfaces for signs of cracking or peeling and lubricating hinges, locks and moving parts every six months to maintain smooth operation and prevent premature wear. Homeowners should also check window seals periodically for moisture ingress and draughts.

Exterior timber frames should be repainted or restained every 3 to 5 years, depending on weather exposure, to protect against rot and long-term deterioration. Applying quality wood preservatives or a specialist timber treatment product before repainting will extend the life of the frames considerably and reduce future maintenance requirements.