Skip to content 
Upgrade Your Home with a Premium Barrel Vault Rooflight
Add natural light and a smooth curved feature to your home with a premium barrel vault rooflight installed by Bowalker’s in-house team. Each rooflight combines strong thermal frames with weather-resistant seals for a secure and reliable finish. Qualifying installation and replacement work is covered by our FENSA registration (33081) and a 10-year insurance-backed guarantee.
- Dimensions Max size 2.5M high x 1.5M wide
- Thermally Broken As standard
- Glass Double Glazed, Triple Glazed, Toughened, Laminated
Certifications and Partners
Professional Barrel Vault Rooflight Installation Services
Serving homeowners since 2009, Bowalker provides professional barrel vault rooflight installation and replacement services through a fully in-house team, with zero subcontractors involved. Our stress-free, full-service approach covers barrel vault systems for renovations, extensions, and quality replacements, with each structure carefully selected based on the property’s roof opening, span, height, and lighting or ventilation requirements.
Our in-house barrel vault team installs barrel vault rooflights featuring double or triple glazing, robust aluminium or steel frames, weather-resistant seals, and thermally efficient frame options. Homeowners can select fixed or custom configurations to flood large spaces and long corridors with continuous daylight, combining striking architectural aesthetics with reliable structural performance for suitable flat- and low-pitch roof applications.
Call Bowalker on 01444 810 111 to arrange a free consultation for barrel vault rooflight installation or replacement, covering glazing choices, frame materials, and roof configurations. Our in-house barrel vault installer manages every stage from survey through to completion, with qualifying replacement work covered under our FENSA registration (33081) and every project supported by a 10-year insurance-backed guarantee.
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 Barrel Vault Rooflights We Install and Replace
Aluminium Barrel Vault Rooflights
Aluminium Barrel Vault Rooflights
Slim yet strong aluminium framing allows barrel vault rooflights to span wide and long roof openings while supporting generous curved glazed areas and maintaining a sleek, contemporary appearance. Modern aluminium systems can incorporate thermally broken frames to limit heat transfer and improve energy efficiency. Bowalker installs and replaces aluminium barrel vault rooflights with suitable curved glazing, weather-resistant seals, and strong structural support for extensions, renovations, and qualifying projects.
Learn More →Steel Barrel Vault Rooflights
Steel Barrel Vault Rooflights
The exceptional structural strength and narrow profile lines of steel framing make steel barrel vault rooflights ideal for industrial-heritage conversions, large commercial-style extensions, or traditional properties requiring heavy-duty curved glazing. Frame design, curvature radii, and thermal specifications are carefully engineered for each installation. Our in-house team installs and replaces steel barrel vault rooflights with compatible glazing, seals, and structural framing tailored to the exact roof dimensions.
Learn More →Double Glazed Barrel Vault Rooflights
Double Glazed Barrel Vault Rooflights
Double-glazed barrel vault rooflights use two curved glass panes with an insulating gas-filled cavity between them, providing a reliable balance of thermal insulation and continuous natural daylight across wide residential spaces. The sealed glazing unit helps retain indoor warmth during winter while providing a barrier against outdoor conditions. Bowalker installs and replaces double-glazed barrel vault rooflights with energy-efficient units, secure glazing retention systems, and robust perimeter flashing details.
Learn More →Triple Glazed Barrel Vault Rooflights
Triple Glazed Barrel Vault Rooflights
Three-pane curved glazing combined with warm-edge spacer bars makes triple-glazed barrel vault rooflights suitable for homes requiring higher thermal efficiency, reduced condensation risk, and improved acoustic insulation across large spans. The extra glass pane and multiple insulating cavities provide improved thermal performance. Our in-house team installs and replaces triple-glazed barrel vault systems with high-performance curved units and thermally efficient frames designed to meet modern building standards.
Learn More →Toughened Glass Barrel Vault Rooflights
Toughened Glass Barrel Vault Rooflights
High-impact safety glass subjected to specialised thermal curving and tempering processes gives toughened glass barrel vault rooflights superior resistance to external stresses, falling debris, hail, and severe weather impacts. If subjected to extreme force, the glass fractures safely into small, blunt fragments rather than sharp shards. Bowalker installs and replaces toughened-glass barrel vault rooflights with secure retention systems, weather-resistant frames, and robust structural detailing.
Learn More →Laminated Glass Barrel Vault Rooflights
Laminated Glass Barrel Vault Rooflights
Laminated glass uses an interlayer that securely holds the curved glass together if broken, providing an essential safety feature for elevated rooflight applications. Different laminated glass configurations can also meet acoustic damping, enhanced security, or solar-control requirements. We install and replace barrel vault rooflights with suitable laminated glazing and structural framing, selected specifically to match the property's safety and environmental requirements.
Learn More →Fixed Barrel Vault Rooflights
Fixed Barrel Vault Rooflights
A continuous, non-opening curved glazed structure designed to span large architectural openings, flood long corridors with even daylight, and create a striking structural feature. Fixed barrel vault rooflights offer maximum structural integrity and weather-tightness for wide flat- or low-pitch roof expanses. Bowalker installs and replaces fixed barrel vault rooflights with precise radius engineering, high-grade framing, and weatherproof upstand integrations tailored to your property.
Learn More →Why Homeowners Choose Bowalker for Barrel Vault Rooflight Installation
10-Year Insurance-Backed Guarantee
FENSA Registered for Qualifying Replacement Rooflight Work
Hassle-Free, Full-Service Experience
In-House Installers With No Subcontractors
Fixed Pricing With No Surprises
Barrel Vault Rooflight Project Gallery
What Are the Benefits of Installing Barrel Vault Rooflight?
Barrel vault rooflights combine sweeping architectural curves, continuous multi-skin glazing, and robust structural framing to flood expansive properties with natural daylight while creating a striking visual centrepiece. Performance depends on the selected glazing specification, frame material, span dimensions, and roof configuration.
8 key benefits of installing barrel vault rooflights include:
Brings Continuous Natural Light Into Long and Wide Spaces
The elongated curved design captures daylight from multiple angles throughout the day, deeply illuminating extended hallways, open-plan rooms, and large extensions.
Distributes Daylight More Evenly Across the Room
The curved glass geometry diffuses sunlight more uniformly than flat rooflights, reducing harsh glare spots and creating a balanced, softly lit interior environment.
Spans Large Roof Openings With a Continuous Glazed Structure
Strong aluminium or steel framing allows barrel vaults to cover massive architectural openings seamlessly without requiring disruptive intermediate support beams.
Creates a Distinctive Curved Architectural Feature
The elegant arch profile delivers a sophisticated, modern, or industrial-heritage aesthetic that significantly enhances both interior character and exterior roof appeal.
Offers Better Control Over Glare, Privacy and Solar Gain
Specialised glazing options and integrated solar-control coatings help manage indoor temperatures and sunlight intensity, keeping spaces comfortable year-round.
Supports Natural Ventilation Across Larger Spaces
Systems can be engineered with compatible opening sections or ventilation vents to encourage healthy airflow and clear stagnant air across wide residential areas.
Reduces Reliance on Artificial Lighting During the Day
Maximising daylight penetration cuts down the need for daytime electric lighting, helping lower household energy consumption and utility bills.
Provides Flexible Thermal Performance Through Multi-Skin Glazing
Double- or triple-glazed curved configurations trap insulating air pockets, effectively retaining indoor warmth in winter and meeting modern thermal building standards.
How to Get Started With Barrel Vault Rooflight Installation at Bowalker?
Getting started with barrel vault rooflight installation or replacement at Bowalker begins with a free consultation and property survey. Our experienced in-house team assesses the roof opening, span, dimensions, framing requirements, glazing options, and supporting structure before recommending a suitable barrel vault rooflight specification. We then provide a no-obligation quote and arrange installation with our in-house rooflight installers.
- Book Your Free Consultation
- Receive Your No-obligation Quote
- Proceed To Installation
Get In Touch
Fill out the form and we’ll get back to you shortly.
Areas we Serve
Bowalker delivers professional barrel vault rooflight installation and replacement services throughout Sussex, Surrey, and surrounding regions. Our dedicated in-house team oversees every stage from initial survey and specification to expert fitting and final inspection, providing custom-tailored barrel vault rooflight solutions for homeowners across all our local service areas.
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
Bowalker provides professional barrel vault rooflight installation services across Sussex, Surrey and London, delivering high-quality, premium barrel vault rooflights with precision and care. Our team ensures consistent workmanship, reliable installation and continuous support for homeowners throughout these regions.
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 a Bowalker Barrel Vault Rooflight?
Redefine your home’s aesthetic with a striking glazed barrel vault that maximises natural illumination and elevates your property’s overall character. Bowalker ensures a stress-free, end-to-end installation and replacement experience managed strictly by our trusted in-house experts.
Call 01444 810 111 today to arrange your free consultation and receive a clear, no-obligation quote. From precise measurements to flawless installation, we manage every stage to ensure lasting weather protection and a refined finish.
Add natural light and a striking curved feature to your home with our premium barrel vault rooflights, contact us today.
Frequently Asked Questions
What Is a Barrel Vault Rooflight?
A barrel vault rooflight is an arched, semi-cylindrical glazed structure designed to span large architectural openings and flood interior spaces with continuous natural daylight. It combines curved framing profiles with transparent or translucent glazing panels to deliver a striking visual feature and exceptional structural performance across flat or low-pitch roofs.
How Wide and Long Can a Barrel Vault Rooflight Be?
A barrel vault rooflight can range between 4 feet and 24 feet (1.2 to 7.3 meters) in standard clear span widths. Furthermore, these systems can extend to a virtually unlimited total length by utilising modular sections or continuous structural designs tailored to the building’s footprint.
How Is the Radius of a Barrel Vault Rooflight Determined?
The radius of a barrel vault rooflight is determined by calculating the proportional relationship between the total width of the roof opening and the desired height of the arch (rise). Engineers evaluate structural load requirements, aesthetic preferences, and material flexibility to establish the optimal curvature for each installation.
Are Barrel Vault Rooflights Suitable for Long Corridors and Large Roof Openings?
Yes, barrel vault rooflights are exceptionally suitable for long corridors and large roof openings because their continuous linear design evenly distributes natural daylight across expansive spans. This architectural capability eliminates dark central zones and maximises interior illumination without requiring bulky intermediate support beams.
Can a Barrel Vault Rooflight Be Installed on a Flat or Low-Pitch Roof?
Yes, a barrel vault rooflight can be installed over suitable flat or low-pitch roofs when the supporting structure and upstand are correctly designed. The curved profile helps direct rainwater towards the sides, while the complete installation must provide suitable drainage and weather protection.
Should a Barrel Vault Rooflight Use Glass or Polycarbonate?
A barrel vault rooflight can utilise either option depending on project specifications, though high-grade architectural glass is often preferred for premium residential applications seeking superior optical clarity, scratch resistance, and long-term durability. Alternatively, multi-wall polycarbonate is sometimes selected for lightweight commercial spans requiring high impact resistance and enhanced thermal insulation.
Can Barrel Vault Rooflights Include Opening Sections for Ventilation?
Yes, barrel vault rooflights can include opening sections for ventilation and automated smoke exhaust operations to ensure healthy indoor air quality. These functional vents can be integrated using manual winders or motorised actuators connected to modern climate control systems.
How Does a Barrel Vault Rooflight Drain Rainwater?
A barrel vault rooflight drains rainwater naturally due to its curved, arched geometry, which naturally guides water down the slope of the vault toward the perimeter flashing. From there, water flows smoothly away from the glazing aperture into standard roof drainage gutters and rainwater systems.
Does a Barrel Vault Rooflight Need a Structural Upstand or Supporting Frame?
Yes, a barrel vault rooflight needs a structural upstand (also known as a curb) to elevate the curved glazing above the flat roof surface and provide a solid anchoring base. This upstand ensures proper waterproofing, facilitates correct water drainage, and securely transfers structural loads into the building’s roof deck.
How Do Wind and Snow Loads Affect Barrel Vault Rooflight Design?
Wind and snow loads affect barrel vault rooflight design by creating unique aerodynamic lift and gravitational pressure forces across their curved, arched geometry. Engineers must calculate these external loads carefully to specify the appropriate frame thickness, glazing strength, and anchor fixings required to withstand severe local weather conditions.
Can You Walk on a Barrel Vault Rooflight?
No, you should never walk directly on a barrel vault rooflight as standard curved glazing and frame profiles are not designed to support human body weight. Specialised walk-on rooflight specifications require heavy-duty structural glass and reinforced framing, which must be explicitly requested and engineered for specific access requirements.
Do I Need Planning Permission for a Barrel Vault Rooflight?
Yes, planning permission may be required for a barrel vault rooflight depending on its projection height, the architectural style of the property, and local council guidelines. Homeowners should always consult their local planning authority before starting work, particularly if the roof modification alters the primary roofline significantly.
Do Building Regulations Apply to Barrel Vault Rooflights?
Yes, Building Regulations absolutely apply to barrel vault rooflights because installations must comply with strict legal standards regarding thermal performance (U-values), structural stability, and fire safety. Working with a FENSA-registered professional like Bowalker ensures that all qualifying replacement work meets these mandatory regulatory requirements.
Can a Barrel Vault Rooflight Be Installed on a Listed Building or in a Conservation Area?
Yes, a barrel vault rooflight can sometimes be installed on a listed building or within a conservation area, provided you secure explicit prior consent from local heritage officers. These installations typically require sensitive framing choices, such as traditional steel profiles, to match the historic character of the surrounding architecture.
How Do Span, Radius and Rise Affect a Barrel Vault Rooflight?
The span, radius, and rise affect a barrel vault rooflight by directly defining its structural proportions, height profile, and overall aesthetic impact on the building. Getting these engineering metrics right ensures optimal load distribution, rainwater runoff efficiency, and maximum visual elegance.
Where Are Barrel Vault Rooflights Most Suitable?
Barrel vault rooflights are most suitable for modern home extensions, large open-plan living areas, expansive hallways, and commercial corridors requiring dramatic architectural daylighting. Their elongated profile makes them ideal for spaces where traditional flat rooflights fail to provide sufficient light coverage.
What Should Be Considered Before Installing a Barrel Vault Rooflight?
Before installing a barrel vault rooflight, consider factors such as the structural load-bearing capacity of your roof deck, thermal insulation goals, and internal clearance heights. Additionally, evaluating orientation for solar gain and deciding between fixed or opening ventilation configurations will ensure the final installation meets your lifestyle needs.