TRP Glazing

Secondary Glazing

Warmth and quiet for period and listed homes — without changing your windows

Chichester is full of beautiful older windows — and cold, noisy rooms behind them. Secondary glazing adds a discreet, independent glazed panel on the room side of your existing window, cutting heat loss and noise dramatically without changing the window itself. That makes it the natural choice for period homes, listed buildings and conservation areas, where replacement windows are often restricted or simply wrong for the building.

The panels are slim aluminium-framed units, colour-matched and sized to sit quietly inside your reveal. Horizontal sliders, hinged and lift-out panels keep every window usable and easy to clean, and because the air gap between old and new glazing is large, secondary glazing is exceptional at soundproofing — often better than replacement double glazing.

Benefits

Why choose Secondary Glazing

  • Keeps original windows — ideal for listed and period homes
  • Dramatic noise reduction on busy roads
  • Cuts draughts and heat loss immediately
  • Reduces condensation on cold single glazing
  • Usually no planning consent needed, even in conservation areas
  • Far less disruption and cost than replacement windows
Features

Engineered for performance

  • Slim aluminium frames, colour-matched to your windows
  • Horizontal sliders, vertical sliders, hinged and lift-out panels
  • Standard, acoustic laminated or low-E glass
  • Discreet fixing within the window reveal
  • Openable and removable for cleaning and ventilation
  • Made to measure for out-of-square period openings
Make it yours

Options

Choose the finishes and options to suit your home.

Styles

Choose your style

  • Horizontal sliding panels
  • Vertical sliding (for sash windows)
  • Side-hinged casement panels
  • Fixed and lift-out panels
  • Shaped and arched panels to order
Glass

Glass options

  • Standard 4mm glass
  • Acoustic laminated glass for maximum noise reduction
  • Low-E glass for maximum thermal gain
  • Toughened safety glass where required
Energy efficiency
Up to 60% less heat loss

Adding a secondary pane with a deep air gap can cut heat loss through a single-glazed window by well over half, and the difference is immediate — warmer rooms, fewer draughts and far less condensation streaming down the glass on cold mornings.

Security

Engineered to protect

An extra glazed barrier on the inside of your window is also an extra layer of security — and panels can be specified with toughened or laminated glass and locking catches for ground-floor rooms.

Customisation

Tailored to you

Panels are made to measure for each opening — including the out-of-square reveals and arched heads that period Chichester properties love to throw at us — with frame colours matched to your joinery and glass chosen for warmth, quiet or both.

Ideal for

Who this suits

Listed buildings and conservation-area homes in Chichester, Arundel, Midhurst and Petworth; sash windows you want to keep; bedrooms facing busy roads; and any single-glazed home that needs to be warmer without losing its character.

Our process

How we do it

We survey each window, manufacture the panels to size, and fit from the inside — clean, quick work with no scaffolding, no plaster damage and no change to the outside of your home.

Common questions

Frequently asked

Is secondary glazing allowed on a listed building? +
In most cases, yes — because it's reversible and doesn't alter the original window, secondary glazing is generally the conservation officer's preferred option. Listed building consent requirements vary, so check with the local conservation team; we're happy to provide specifications to support an application.
Is secondary glazing better than double glazing for noise? +
Usually, yes. The large air gap between your window and the secondary panel is what kills sound, and with acoustic laminated glass the reduction can be dramatic — which is why it's the standard solution for homes on busy roads and under flight paths.
Do you offer a supply-only service? +
Yes. Plenty of our customers are trade fitters, kitchen and bathroom installers, joiners and confident DIYers. We cut and process glass at our Chichester workshop for you to collect — often while you wait for simple cuts — or we can deliver locally. Bring your sizes or a template and we'll do the rest.
Are your quotes really free? +
Completely. Tell us what you need — sizes, photos or just a rough idea — and we'll give you a clear, no-obligation price. No pressure and no hard sell, ever. Call 01243 530 520 or use the contact form.
Who does the fitting? +
Our own team. TRP Glazing is a family-run business with over 40 years of experience — the people who measure and make your glass are the same friendly faces who fit it, so nothing gets lost between survey and installation.
Which areas do you cover? +
We're based at 89 Oving Road in Chichester and work right across the area — Bognor Regis, Selsey, the Witterings, Emsworth, Havant, Portsmouth, Arundel, Littlehampton, Midhurst, Petworth, Worthing and the surrounding towns and villages. For larger projects we regularly travel further across Sussex, Hampshire and Surrey.
Gallery

Secondary Glazing — up close

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Made in Chichester, fitted across West Sussex — get a fast, free, no-obligation quote.

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