Run-through sash horns
Fully integrated horns that are a continuous part of the sash frame, not a decorative add-on. The most period-accurate sash replacement available.
Windows
Sash Horn Windows
Sash horn windows supplied and fitted in Romford and Essex for period-style fronts, bays, and upper floors.
- 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)
- Run-through integrated sash horns
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.
Period hardware finish: White
Sash horn windows suit more traditional details: sash lifts, cam locks, restrictors, and handles that work with the horn profile and any bar layout.
Made to measure. We confirm the colour, glazing, handle finish, and opening layout during your survey.
Period hardware finish: White
Sash horn windows suit more traditional details: sash lifts, cam locks, restrictors, and handles that work with the horn profile and any bar layout.
Made to measure. We confirm the colour, glazing, handle finish, and opening layout during your survey.
Product fit
Period detail without always choosing a vertical slider
Sash horn windows suit Romford and Essex homes that need traditional detailing but do not always need a true sliding sash mechanism. The horn detail, glazing bars, handle choice, trickle vents, reveal position, and frame colour all affect whether the finished elevation looks considered or simply decorative.
Best fit for
- Victorian and Edwardian-style front elevations
- Homes where standard casements look too plain from the road
- Projects that need period cues with simpler casement operation
Consider another option when
- The house really needs true vertical sliding sash proportions
- The elevation is modern and would look cleaner with simpler casements
- The horn detail would only be decorative on a hidden or low-priority opening
What we check on survey
- We check whether the house needs sash horn casements, true sliding sash, flush sash, or simpler casements.
- We review glazing bar layout, horn detail, and trickle vents against the rest of the front elevation.
- We confirm colour, hardware, reveal position, and access together so the window does not look mismatched.
Useful comparisons
Casement windowsCompare the practical default for most full-house UPVC replacements.Flush sash windowsCompare a flatter timber-look casement for visible elevations.Sliding sash windowsCompare the vertical sash route for Victorian, Edwardian, and bay-fronted homes.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
Selective privacy for sash horn window rooms
Sash horn windows are usually chosen for traditional detailing, so integral blinds should be used with care. They can still be useful on overlooked bedrooms, upper floors, and less formal rear elevations where privacy matters more than a classic curtain or shutter look.
Traditional detail, modern control
Best used selectively where the room needs privacy without losing the sash-style frame detail.
Useful on sash horn windows when
- The room is overlooked but the sash horn detail should stay visible
- The opening is on a rear or side elevation with a more modern interior
- Surface-mounted blinds would make the frame look busier than intended
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 integral blinds with curtains, shutters, obscure glass, and standard clear glass so the period-style look stays balanced.
Ask about sash horn 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
Sash horn windows are a useful route when a Romford or Essex home needs period detail on the front elevation but does not necessarily need a true vertical sliding sash. The horn detail, bar layout, frame colour, handle style, trickle vents, and reveal position all affect whether the finished window looks deliberate from the road. We compare sash horn casements against sliding sash, flush sash, and standard casement options during survey so Victorian, Edwardian, bay-fronted, and older-looking homes get the right level of traditional detail before manufacture.
Key Specifications
10-year profile guarantee. No warping, splitting, or discolouration
10-year mechanical guarantee on Shootbolt locking
Fully integrated run-through sash horns
Continuous rebate gasket seal for weather-tightness
Double rebated, welded joints, hand-finished
100% lead-free, recyclable uPVC. BSI Kitemark certified
Period Detail
What makes our sash horn windows different
Astragal bar detailing
Traditional astragal bars replicate individual pane detailing found on original Victorian and Edwardian sash windows, matching the character of existing streetscapes.
Horn profile detail
The curved horn at the base of the upper sash faithfully replicates original timber joinery, giving period properties the most sympathetic replacement.
Period-accurate exterior
From the street, sash horn windows are virtually indistinguishable from original timber box sashes. Profiles, proportions, and detailing are all designed for authenticity.
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
