Flush frame profile
The sash sits level with the outer frame face, replicating traditional timber casement proportions accurately enough for most conservation area approvals.
Windows
Flush Sash Windows
UPVC flush sash windows supplied and fitted in Romford and Essex where a flatter timber-look frame suits the house.
- Romford and Essex supply and fit
- 70mm multi-chamber frame
- Up to A+14 rated
- U-value 1.3 W/m²K (double) or 0.9 W/m²K (triple)
- Sash flush with outer frame face
10YEARGUARANTEE
Assure certifiedSurveyed properlyFinance availablePersonalise Your Window
Colours & Finishes
Frame colour: Smooth White
Standard colours
Extended lead time colours
Dual colour may be available, with different interior and exterior frame finishes depending on the range.
Flush sash hardware finish: White
Flush sash windows are often chosen for period character, so the handle finish, optional monkey-tail style, dummy stays, and locking detail need to match the property.
Made to measure. We confirm the colour, glazing, handle finish, and opening layout during your survey.
Flush sash hardware finish: White
Flush sash windows are often chosen for period character, so the handle finish, optional monkey-tail style, dummy stays, and locking detail need to match the property.
Made to measure. We confirm the colour, glazing, handle finish, and opening layout during your survey.
Product fit
A timber-look casement route for visible Romford elevations
Flush sash windows are specified when the outside frame line matters but the house does not need a true vertical slider. The sash sits level with the outer frame, so the window reads closer to traditional timber than a standard casement. That makes them useful on Romford and Essex cottages, conservation-influenced streets, bay-fronted houses, and homes where standard UPVC would look too bulky from the road.
Best fit for
- Front elevations where the window must look more timber-like
- Homes considering Chartwell Green, cream, Irish Oak, or heritage-style foils
- Projects where monkey-tail handles, dummy stays, or astragal bars are part of the brief
Consider another option when
- The property suits a standard casement and the budget needs to stay tighter
- A true vertical sliding sash is the more authentic period match
- The priority is a slim contemporary frame rather than a timber-style line
What we check on survey
- We check existing brick reveals because flush lines are more sensitive to poor set-back.
- We discuss bar layouts before quoting so the elevation stays balanced.
- We confirm trickle vents, handle style, dummy stays, and planning or conservation uncertainty before the order is placed.
Useful comparisons
Casement windowsCompare the practical default for most full-house UPVC replacements.Sliding sash windowsCompare the vertical sash route for Victorian, Edwardian, and bay-fronted homes.Sash horn windowsCompare traditional horn detailing without always choosing a true sliding sash.Tilt and turn windowsCompare inward-opening windows for cleaning access and secure ventilation.Aluminium casementsCompare the slimmer aluminium frame route for modern elevations and larger openings.Aluminium tilt and turnCompare aluminium sightlines with inward cleaning and secure tilt ventilation.
Optional Upgrade
A cleaner privacy option for selected flush sash rooms
Flush sash windows are usually chosen for their timber-look exterior line, so integral blinds need to be used selectively. They can work well on modernised interiors, bedrooms, bathrooms, and overlooked rooms where a neat reveal matters.
Subtle room-by-room option
Best considered on selected openings where privacy matters more than traditional window dressing.
Useful on flush sash when
- The room needs privacy but the frame line should stay uncluttered
- A modern interior sits behind a traditional-looking exterior
- Curtains would hide the flush frame detail you are paying for
Blind types we can discuss
Magnetic integral blinds
A slim magnetic slider raises, lowers, and tilts the blind inside the sealed glass unit.
Electric integral blinds
Remote operation suits larger panes, harder-to-reach glass, and cleaner contemporary rooms.
What we check
- Glass unit size and cavity depth
- Handle position, reveal depth, and room layout
- Whether magnetic or electric operation is worth pricing
We compare the look against standard curtains, shutters, and exposed blinds so the period-style elevation still feels right.
Ask about flush sash blind upgradesFree Survey
Ready to shortlist this product properly?
If this looks like the right fit, we can survey the opening, confirm the specification, and price it properly for your home with no obligation.
Free surveyFixed quoteDirect Cii installation team
Flush sash windows have the opening sash sitting level with the outer face of the frame, so the finished window looks flatter and more timber-like than a standard UPVC casement. Cii Double Glazing supplies and fits UPVC flush sash windows across Romford and Essex for front elevations, cottages, bay-fronted homes, and properties where a bulky modern frame would look wrong. During survey we check reveal depth, bar layout, colour, hardware, trickle vents, and planning or conservation uncertainty before the order is placed.
Key Specifications
10-year profile guarantee. No warping, splitting, or discolouration
SAC locking with £7,500 break-in guarantee
10-year mechanical guarantee on locking hardware
Single rebated, flush construction for timber-accurate appearance
Traditional monkey-tail handles and dummy stays available
100% lead-free, recyclable uPVC, the look of timber without the upkeep
Conservation Detail
What makes our flush sash windows different
Yale lock security
SAC locking backed by a £7,500 break-in guarantee, with traditional monkey-tail handles available to maintain period-appropriate aesthetics.
Cruciform key locking
The cruciform locking system provides multi-point security engagement concealed behind period-style hardware for a clean, authentic appearance.
Frame profile engineering
70mm single-rebated construction designed specifically for flush alignment, with welded corners and multi-chambered thermal performance.
How It Works
From Survey to Sign-off
Step 1
Survey
We visit, measure, and advise on the right configuration for your property.
Step 2
Install
Our Cii team installs with clean, tidy workmanship.
Step 3
Sign-off
Final checks, handover, and Assure certification where required.
Next Step
Want a fixed quote from a real survey?
We will measure up, talk through finishes and installation details, and give you a clear quote based on the actual opening rather than a generic estimate.
Free surveyFixed quoteDirect Cii installation team
Checkatrade
“Job carried out on time and very professionally.”
Trustpilot
“Second time using CII for different properties. Easy process, good pricing, and the work was completed exactly as promised.”
Questions Answered
