Fenster Glazing
Sliding Sash Windows
Sliding sash windows give period character with modern uPVC performance. We specify Roseview sash windows around proportions, colour, horns, glazing bars, hardware and survey details so the finished window looks authentic and works smoothly.
Key specifications
Sliding Sash Windows
- Energy rating A rated
- Sash models 3 Rose options
- Profile system Roseview
- Guarantee 10 years
Roseview sash systems
Choose the sash window by detail level, not just by name. Choose your Roseview sash.
Closest to timber
Ultimate Rose
Best for conservation-led projects, high-detail period homes and front elevations where authenticity matters most.
- Corner detail
- Mechanical joints
- Profile detail
- Putty line
- Bottom rail
- 81mm standard
- Horn options
- Seamless run-through
- Glass unit
- 28mm IGU
- Best U-value
- 1.2 W/m²K option
- Furniture
- Globe standard
Traditional all-rounder
Heritage Rose
Best for traditional homes, Victorian or Edwardian styling and projects where a convincing timber-style appearance is needed.
- Corner detail
- Welded joints
- Profile detail
- Putty line
- Bottom rail
- 81mm standard
- Horn options
- Run-through, clip-on or none
- Glass unit
- 28mm IGU
- Best U-value
- 1.2 W/m²K option
- Furniture
- Acorn standard
Cost-conscious sash style
Charisma Rose
Best for modern replacements, rental refurbishments and homes where sash operation matters more than maximum timber replication.
- Corner detail
- Welded joints
- Profile detail
- Sculptured ovolo
- Bottom rail
- 68mm standard
- Horn options
- Run-through, clip-on or none
- Glass unit
- 24mm IGU
- Best U-value
- 1.4 W/m²K option
- Furniture
- Acorn standard
Real homes
Roseview sash windows in real homes.
Explore finished Roseview installations across period rooms, bays, full elevations and special window shapes. Swipe through finished Roseview installations. Tap any image for a closer look.
Sash window furniture
Choose the lock style and finish.
Globe and Acorn furniture are supplied as coordinated sets with matching sash lifts, pole eyes and tilt knobs. Compatibility depends on the Roseview model.
Style
Finish
The curved Globe lock is the standard traditional furniture style for Ultimate Rose.
Finish
The Acorn lock is standard on Heritage and Charisma Rose and is also available on suitable Ultimate Rose specifications.
Supplied as a matching set. The number of locks, lifts and pole eyes depends on the finished sash width and is confirmed during survey.
Specification choices
Privacy where the room needs it.
Bathrooms, landings, a side return or anything overlooked. Obscured glass goes into the same sealed unit as clear glass, so the sash slides, seals and performs exactly the same.
What Milton Keynes homeowners say
Real reviews from real installations. Every one is public, so you can go and check them yourself.
Shane and James fitted two sash windows for us at the front of our house and we are so pleased.
Read on Google
Joanna Hayes
3 months ago
Really happy with the service we received from Fensters Windows. Aaron and Shane turned up on time and were both really friendly. They explained any issues as they went along and talked us through the different options, which we really appreciated. They did a great job fitting our new back doors and cleaned up everything afterwards. We also paid exactly what we had originally been quoted, with no unexpected extra costs. Really pleased with our new doors and would definitely recommend Fensters Windows. Thank you Aaron and Shane!
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Bernie Raffe
4 months ago
Great service from Fenster Glazing, very happy with our new bi-fold door, glass door and windows (with built-in blinds) There was an issue with the wrong spec of glass provided to them from their supplier, so they had to temporarily board up a door and a window, but this was put right within a few weeks. Recommended, thanks.
Read on Google Zak Jessup 12 Jun 2025Cannot recommend higher! Nick and Perry were really helpful in getting my windows sorted ASAP.
Read on Google Brigid Jordan 10 May 2025Everything went perfectly with our windows supplied and fitted.
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Stuart Matthew
7 months ago
Fenster have just completed a front door installation on my new property - fantastic job and strongly recommend! The online design tool is great, Perry back at HQ is brilliant as is his communication. Andy, who installed the door, is a top gent and professional. Will definitely be a returning customer.
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Digger
3 months ago
We have used Fensters for years on a variety of glazing work, and 2 door installations. They are competitively priced and responsive. They take great care over measuring and specifying the work, giving you a clear quote so you understand what you are getting (thanks Perry!). The fitters are all extremely competent and personable. We had to replace our front door for accessibility reasons, they gave us confidence that our requirements would be met, reproduced the intricate leaded and stained-glass pattern of our old door, and did a quality fitting job (thanks to Johnnie and Shane!). In summary they are our go-to suppliers for all replacement and repair work.
Read on GoogleFrom our case studies
Real installs, photographed on the day.
Product questions
FAQs about Sliding Sash Windows
Which Roseview sash window should I choose?
Ultimate Rose gives the closest timber replication, Heritage Rose balances traditional detailing and value, and Charisma Rose suits simpler or more contemporary replacements. We confirm the right model after seeing the property and the level of detail required.
Do sash windows need planning permission?
Most like-for-like replacements do not need planning permission, but listed buildings, Article 4 directions and some conservation areas can require consent. Check with the local planning authority before ordering if restrictions may apply.
Are Roseview sash windows suitable for conservation areas?
Ultimate Rose is commonly chosen where timber-like proportions and joint detailing matter most. Acceptance always depends on the property and local planning requirements, so we can help prepare the specification but cannot guarantee planning approval.
How do tilt-in sash windows work?
The sliding sashes can tilt inwards so the outside glass can be cleaned safely from inside. Tilt availability and any weight restrictions are confirmed for the finished window during survey.
What affects the price of sliding sash windows?
Price depends on the Roseview model, size, colour, glazing bars, horn and cill details, glass specification, security upgrades, access and installation conditions. A survey confirms the final specification and price.
What security upgrades are available?
PAS 24, Part Q and Secured by Design options are available on suitable Roseview specifications. The final lock and furniture package is confirmed around the selected model and project requirements.
Start your project
Tell us about your project.
Send the basics and the team can guide you through styles, pricing, survey and installation options.
From the blog
Worth reading before you decide.
Trickle vents explained: why new windows have them
Since 2022, most replacement windows in England need trickle vents. What they do, why the rule exists, whether you can refuse them and how to use them properly.
How window replacement actually works, from survey to fitting
What actually happens when you replace windows: quote, technical survey, manufacture and fitting day, and what each stage decides. No mystery, no hard sell.
Draughty windows: repair or replace? An honest checklist
Not every draughty window needs replacing. A straightforward checklist of what can be fixed, seals, hinges and locks, and the signs the window is done.
Where we fit
Sliding sash windows in Milton Keynes and the towns around it.
Each town has its own page: the homes there, what to check before you order, and who to ask about permission.