SashWindowsinPoole&Bournemouth
A genuine vertical-sliding box sash from RoseView, not a fixed pane with a bar stuck on. Three tiers, so there's a real one for your house.
- 5.0★from 25 Google reviews
- CertifiedAssure Insurance-backed
- 10+ YearsExperience
- GuaranteedFor 10 Years
Ultimate, Heritage and Charisma Rose: three tiers, not one product
No competitor locally even names a manufacturer, let alone three tiers. These are RoseView's own photographs of the range we fit.

Ultimate Rose
The flagship, conservation-grade tier — true mechanical joints and the slimmest sightlines in the range.
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Heritage Rose
The mid-range option — a genuine box sash with a strong finish range and the conservation-grade look.
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Charisma Rose
The most cost-effective tier — the authentic sash look at the most accessible price.
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How it works, start to finish
No salesman. Just a straight answer.
The survey
Josh comes out himself, measures up and brings the RoseView swatches for each tier so you can see them properly.
The quote
A written quote naming the tier, the finish and what's included. No pressure to decide on the spot.
The fit
Once you've gone ahead, we'll agree a date and fit the windows properly, tier and all.
Ten finishes, and which tiers they're on
See them properly before you choose. We bring the same swatches to survey.

White

Crystal White

Cream

Quartz Grey

Pebble Grey

Agate Grey

Anthracite Grey

Shadow Black

Chalk White
Ultimate Rose exclusive (PKI-roseview-12)

Chartwell Green
Charisma Rose (PKI-roseview-13)
Not every finish is available on every tier, and we'll confirm what's right for your window at survey. A custom RAL spray finish is also available at extra cost.
The choices that finish the job
The hardware and horn style are what make it read as a genuine sash, not just look like one.
Sash horns, matched to your house's age

No Horn

Dolphin

Emperor

Seahorse
Cills

Standard Flush
All models

Deep Cill
Ultimate Rose

Projecting
Ultimate & Heritage Rose

Charisma Cill
Charisma Rose
Hardware

Globe Lock
Ultimate Rose

Acorn Lock
Heritage & Charisma Rose
RoseView's own published cill depths don't agree with each other, so we won't quote a figure here. We'll confirm the right cill for your opening at survey.
What actually separates the three tiers
Same product family. Three genuinely different builds.
| Ultimate Rose | Heritage Rose | Charisma Rose | |
|---|---|---|---|
| Corner joint | True mechanical joint, end-sealed | Welded joint | Welded joint |
| Horn style | Dolphin, Emperor, Seahorse or no horn | Flat run-through, clip-on or no horn | Flat run-through, clip-on or no horn |
| Midrail width | 35mm, the slimmest in the range | 44mm | 60mm |
| Hardware | Globe furniture, exclusive to this tier | Acorn furniture | Acorn furniture |
| Thermal performance | 1.5 W/m²K standard, down to 1.2 with ThermoVFlex | 1.5 W/m²K standard, down to 1.2 with ThermoVFlex | 1.5 W/m²K standard, down to 1.4 with a glass upgrade |
| Where it sits in the range | The flagship | The mid-range option | The most cost-effective tier |
Swipe to see every column
What you're actually buying
The specification behind the look, by tier where it matters.
Thermal performance
1.5 W/m²K standard on every tier, improving to 1.4 with a glass upgrade, and to 1.2 with ThermoVFlex on Ultimate and Heritage Rose. Not available on Charisma Rose.
Acoustic performance
32dB standard on Ultimate and Heritage Rose, 33dB on Charisma Rose, upgradeable to 37 to 38dB with acoustic glazing.
Security
Part Q, PAS24 and Secured by Design hardware are available as an optional upgrade on every tier. None of it is standard.
The single-piece arch
RoseView says it's the only manufacturer offering true arches bent from one piece of profile, with no joints or welds.
Corner joint and construction
Ultimate Rose uses a true mechanical corner joint, end-sealed. Heritage and Charisma Rose use a welded joint.
Made to order
Every Rose Collection window is made to order for the opening it's going into, machine cut and hand finished. Maximum sizes differ by tier.
Why people pick us for sash windows
Josh surveys and manages every job himself. Sash windows are a genuine specialism here, not a line we've added to the list. Every installation is backed by our own 10-year Assure insurance-backed workmanship guarantee, kept separate from RoseView's own guarantee, which runs to us as the trade customer, not to you directly.
- One point of contact, start to finish
- Sash windows as a genuine specialism, not an afterthought
- Assure insurance-backed workmanship guarantee

What's actually wrong with the sash windows you've got
No scare stories. Just what usually goes wrong, and why.
Draughts
Old single glazing and worn weatherstripping letting cold air straight through.
Rattling or sticking
Paint-bound sashes, or timber that's moved and won't sit properly in the frame.
Cords and pulleys failing
The weight-and-cord mechanism wearing out, a problem a hinged window never has.
Which of these describes your current window?
This is usually what decides repair or replace.

An original timber sash that's draughty, rattling or won't stay open
Prone toPerished cords, paint-bound timber and pulleys that have worn out over the years.
How we treat itIf the frame's still sound, this is often a repair rather than a full replacement.

An older aluminium or basic uPVC "sash-style" window that's had its day
Prone toCondensation between the panes, a stiff or seized mechanism, and a look that doesn't match the house.
How we treat itA genuine RoseView box sash, in whichever tier suits the property's age.

A previous replacement that doesn't really read as a sash
Prone toA flat, single-plane slider, or a fixed pane with a bar glued on rather than a real box sash.
How we treat itThe tiered range above shows what a genuine mechanical box sash actually looks like.
Not sure which is yours? Send us a photo, or book a survey and we'll take a proper look.
The bits people worry about
Will it actually look like a real sash, not a slab of plastic with a bar stuck on?
The joints, horns and midrail width genuinely differ by tier, not just the colour.
I've heard uPVC sash windows rattle or let noise in. Will these?
Standard acoustic rating is 32 to 33dB depending on tier, with an upgrade available if you need more.
What if I pick the wrong tier for my house?
That's what the survey is for. We'll talk you through which tier actually suits your property.
What customers say
See our full review history on Google.
5.0
Natasha Evans
Josh and his team worked incredibly hard replacing all of the windows and doors in our house, including fitting a beautiful bifold door in place of our old French doors. We could not be happier with the results. The quality of the workmanship was excellent, and Josh was fantastic with communication throughout the whole process. He was reliable, professional, and kept us updated every step of the way. We would highly recommend him to anyone looking for high-quality work and great service.
Andy
Josh installed our new windows, triple track doors, roof lights and front door at our house in Bournemouth. A very professional, tidy and efficient service from beginning to end. Would highly recommend Wilshaw Glazing.
Limor Feingold
A small job well done. I used Wilshaw Glazing to install a new double glazed window in my kitchen - a relatively small job. They were highly efficient - providing a quote in advance and making sure I was happy with the proposed window confirmation. The window took 3 weeks to manufacture, and was installed as soon as it was ready. They installation was done on a Saturday morning - it only took 2 hours and the team took care while they were on site. Overall very satisfied and would be happy to recommend
How much do sash windows cost?
We don't publish a price list, because Ultimate, Heritage and Charisma Rose sit at genuinely different price points and every window is made to order for the opening it's going into. Ultimate Rose is the flagship, Heritage Rose the mid-range option and Charisma Rose the most cost-effective. The fastest way to get a real number is a free survey.
Can my sash window be repaired instead of fully replaced?
Often, yes. If the frame's still sound and the problem is the cords, pulleys or a stuck sash, a repair is usually the sensible route rather than a full replacement. Have a look at our repairs page, or send us a photo and we'll give you an honest answer.
Do I need planning permission to fit these in a conservation area?
Not always. A genuine like-for-like replacement, matching the appearance and proportions of the original, is often allowed under permitted development. Where an Article 4 direction applies, or the property's listed, you'll need permission, and it's always worth confirming with your council.
What happens next if I want a quote?
Josh comes out to survey the job himself, measures up and brings the finish swatches so you can see them properly. You'll get a written quote naming the tier, with no pressure to decide there and then.
What's the difference between a sash and a casement window?
A casement hinges open at the side. A sash slides vertically in a fixed frame, and both the top and bottom can open independently. It's a different mechanism, not just a different look.
How do I know which horn style is right for my house?
It generally comes down to the age of the property. Pre-1840s houses suit a plain or joint-free horn, and Victorian or Edwardian houses suit a proper horned sash. We'll confirm what's right for yours at survey.
Where we fit sash windows
Covering Poole, Bournemouth and the surrounding Dorset areas.
Other window options, and repairs

uPVC Windows
Our uPVC casement range, for value and breadth of choice.
Learn more
Aluminium Windows
Slim aluminium sightlines for a more contemporary look.
Learn more
Timberlook Windows
The flush-fitting hinged alternative, styled for period properties.
Learn more
Triple Glazed Windows
The upgrade option for our other ranges, with an honest answer on when it's worth it.
Learn more
Tilt & Turn Windows
Two opening positions from one handle, a practical option elsewhere in the house.
Learn more
Misted Double Glazing
A clouded sash pane is usually a failed sealed unit, not a reason to replace the window.
Learn more
Ready to talk about your sash windows?
Book a free survey and we'll talk you through which tier suits your house.
Sash windows, explained properly
A box sash window, sometimes just called a sash window, is the traditional vertical-sliding window found on Georgian, Victorian and Edwardian houses. Instead of hinging outward like a casement, each sash slides up and down inside a boxed frame. In an original timber window, a cord runs from each side of the sash over a pulley to a hidden weight, and that counterbalance is what lets the sash hold at any height without a stay or a catch. It's a genuinely different mechanism, not just a different look, which is why it's considered the historically correct window for a period property of that age.
A casement window hinges open, usually at the side, and swings in or out. A sash window doesn't hinge at all. Both the top and bottom sash can open independently, so you can drop the top and lift the bottom at the same time and draw air through at high and low level together. Cracking the top sash while the bottom stays locked is a long-standing secure-ventilation trick specific to a sash window, and a casement can't do it. It's a small thing, but it's part of why a genuine sash behaves differently day to day, not just looks different from the front.
Are they worth it?
Most of the sash windows we're asked to look at haven't failed because the frame's rotten. They've failed because the mechanism has. Cords fray and eventually snap, pulleys wear, and the timber itself can swell, shrink or get painted shut over years of redecorating. That's why a sash that rattles, won't stay up or feels stiff to open isn't automatically a full replacement job. If the frame's still sound, it's often worth having it looked at as a repair first, and we'll say so honestly at survey rather than push a replacement you don't need.
A genuine solid-timber sash window is a beautiful thing, and there are specialists locally who do it well. The trade-off is maintenance: timber needs regular repainting and sanding to stop it rotting, an ongoing cost most people don't factor in until a few years in. A RoseView uPVC sash is built to the same proportions, and Ultimate Rose uses a genuine mechanical joint and horns with no visible join, rather than a stuck-on strip. It needs an occasional clean rather than a repaint-and-sand cycle. It isn't the same material as real timber, and we wouldn't pretend otherwise, but for most homeowners weighing the look against the upkeep, it's a trade worth understanding before you decide.
Conservation areas & listed buildings
Will the council let you fit these?
Here's the consent regime, plainly. If your current sash windows are genuinely timber and you're replacing them like-for-like, planning rules judge the material AND the appearance together, not the appearance alone. In most conservation areas, a well-specified uPVC sash can be accepted under permitted development, provided it matches the proportions, glazing pattern and profile of the original, not just the colour. Where a property carries an Article 4 direction removing that right, or is listed, permission is needed even for an exact match, and that's always the council's decision to make, not ours. RoseView markets Ultimate Rose and Heritage Rose as conservation-grade, and says its sash windows have previously been approved for use in hundreds of conservation areas around the UK, with Ultimate Rose its recommended option for conservation projects. That's a reasonable starting point, but every planning authority makes its own call, so we'd always tell you to confirm with them before committing to anything. The horn style matters here too: a pre-1840s Georgian property is more historically accurate with a plain or joint-free horn, while a Victorian or Edwardian one suits a proper horned sash.
- Planners judge appearance, not material, for a genuine like-for-like replacement
- Article 4 directions and listed buildings need permission even for an exact match
- RoseView's own conservation-area track record, with the honest caveat: always confirm with your council

Get a free quote
Tell us what you need and we'll come back with a price. No pressure, no hard sell.
Prefer to talk, or email? Call Wilshaw Glazing on 01202 156 611 or email Josh.Critchley@wilshawgroup.com

