Sealed units and hardware · Aylesbury

Misted glass, made clear again.

Keep the frames you have and replace only the sealed glass unit, or fix the handle, hinge or mechanism that has let you down. Priced on screen with fitting and VAT included.

Fitting and VAT included40,000+ units replacedEst. 2003
Clear replacement double glazed units in a white bay window, seen from inside
Replacement bay units · clear again
40,000+sealed units replaced
2003repairing windows since
10year guarantee on sealed units
1hour to fit most units
A white uPVC bay window with gold Georgian bars, seen close up against red brick
Georgian bar units · matched

Glass only · keep your frames

Keep the frames, change the glass.

Condensation between the panes means the seal has failed, not the frame. We measure the pane, make a new sealed unit to size and fit it into the frame you already have.

  • Misted, failed or blown double glazing
  • Cracked or broken glass replaced
  • Leaded and Georgian bar designs to match
  • Upgrade to the latest energy-efficient or obscure glass
  • Most units fitted within an hour of arrival
A Smashing Windows fitter working on a window frame, with the company van behind him
Hinge and handle repairs

Window hardware · fixed prices

Fixed prices for hardware.

Six common window repairs, each at one fixed price including VAT and fitting. Describe the problem and we bring the matching part.

  • Espagnolette and Cockspur handles
  • Friction, Easyclean, fire escape and restrictor hinges
  • Complete mechanisms and sash jammers
  • Adjustments for windows that catch or stick
£25Window adjustments
£25Sash jammers, each
£30Window handles
£60Standard hinges
£70Specialist hinges
£80Mechanisms

All prices include VAT and fitting. Sealed units are priced online by size and glass type.

Repair or replace?

Sound frames? Repair them.

Most misted windows only need new glass. If the frames themselves have had their day, price a whole new window instead.

Consider a whole new window when

  • The frames are over 20 years old
  • There is visible rot or damage to the frame
  • Draughts and poor insulation around the frame
  • You want a new style or size, or to replace single glazing

New windows come with A-rated Liniar frames, CERTASS registered installation and a 10-year insurance-backed guarantee, and your old windows are taken away.

The Smashing Windows van outside a customer's home while a fitter talks to the homeowner at the door
Free survey at the door · Aylesbury

Our guarantees

Guaranteed for ten years.

Every sealed unit is manufactured to measure and fitted by our own team, then covered against seal failure.

  • 10-year guarantee in uPVC and aluminium frames
  • 5-year guarantee in wooden frames
  • CERTASS registered and a Which? Trusted Trader
  • Final price confirmed at your free survey
CERTASS registered installerWhich? Trusted TraderMade in Great Britain

Before you start

Clear answers.

Window repairs across Aylesbury Vale, north and south Bucks and Milton Keynes. Anything else, ask our office.

AylesburyStoke MandevilleWendoverHaddenhamBuckinghamWinslowWaddesdonQuaintonHigh WycombePrinces RisboroughThameCheshamBletchleyWolvertonNewport PagnellWoburn Sands

Related services

How much does it cost to replace a misted sealed unit?

Sealed unit replacement pricing depends on the size of the window and the type of glass required. Use our online quote tool to get an instant price for your specific windows. All prices include a 10-year guarantee for uPVC and aluminium frames, or a 5-year guarantee for wooden frames.

Can you fix misted double glazing without replacing the whole window?

Yes, if your window frames are in good condition, we can replace just the sealed glass unit without changing the frames. This is significantly more cost-effective than full window replacement. The misting occurs when the seal between the glass panes fails, allowing moisture to enter. We manufacture new sealed units to measure and fit them into your existing frames.

How much does window handle replacement cost?

Window handle replacement costs £30 including VAT and fitting. This covers both Espagnolette and Cockspur style handles. If you have multiple handles to replace, contact us for a quote.

What guarantee do you offer on sealed units?

We offer a 10-year guarantee on sealed units fitted to uPVC and aluminium frames, and a 5-year guarantee for wooden frames. All sealed units are manufactured to measure with comprehensive protection against seal failure.

How long does it take to replace a sealed unit?

Most sealed units are replaced within 1 hour of arrival. The units are manufactured to measure beforehand based on our survey, so the on-site work is quick and efficient. This minimises disruption to your day.

My window is sticking or difficult to close. Can you fix this?

Yes, window adjustments to fix catching or sticking windows cost £25 including VAT and fitting. This involves adjusting the window within the frame so it opens and closes smoothly again.

Instant online prices

Know your price today.

Enter a few measurements and see your price on screen, with fitting and VAT included. No sales visit, no obligation, and a free survey before any work begins.

Rather talk it through? 01296 630650

Glass only · keep your frames

Replace the misted glass.

New sealed units made to measure and fitted into the frames you already have.

Misted, cracked or blown. Frames fine.

Price my glass About two minutes

New windows · frames and glass

A whole new window.

A-rated Liniar frames in ten styles, with your choice of openers and glazing.

Draughty, dated or rotten frames.

Price my new windows Ten styles, priced instantly

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