CT17 · Kent

Dover sash windows — Quotes from Independent Kent Fitters

Fill in a single form and up to four independent window firms working in the CT17 area can arrange to measure up and quote for your sash windows.

✓ Free surveys✓ Fully insured✓ Response within 24h
How it works
  1. 1Describe your windows
  2. 2Choose in your own time
  3. 3Compare free quotes

Sash windows in Dover

With coastal damp and sea winds coming off the Channel and the Thames estuary, older windows around the county soon show the strain. Misted sealed units, draughty openers and handles that no longer lock are the usual reasons Dover homeowners start looking at sash windows.

Kent's weather is not the same from one end of the county to the other: a seafront flat in Margate, Deal or Folkestone takes salt spray and driving rain that a sheltered Weald cottage never sees. Someone who fits windows near Dover knows which products stand up to the local conditions.

Common sash windows Problems in Dover

  • Fog or droplets trapped between the two panes
  • A cold draught along the opener when the wind is up
  • Handles that turn without locking or feel loose
  • White uPVC that has yellowed, gone chalky or cracked at the joints
  • Soft or rotten cills and bottom rails on timber windows
  • Rooms that stay chilly near the glass even with the heating up
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Finding a sash windows Specialist in Dover

1

Describe your windows

Fill in one short form with a rough number of windows, the style you have in mind and where in Dover the property is.

2

Choose in your own time

Check what each quote includes and what it leaves out, then pick the installer you prefer. You do not have to accept any of them.

3

Compare free quotes

A few independent installers covering Dover can get in touch to book a survey and send a written quotation for sash windows.

How Much Does sash windows Cost in Dover?

ServiceTypical CostTimeframe
Sash Windows£950–£16,5002–5 days

Frequently Asked Questions

How much does sash windows cost in Dover?

Typical projects in Dover fall within £950–£16,500, with the final figure depending on how many windows are involved, how big they are and which frame and glass you pick. Only a survey by the installer will give you a firm figure.

How long does sash windows take?

Installation on site normally takes 2–5 days. Windows are made to order once they have been measured, so expect a few weeks between the survey and fitting day.

Who certifies replacement windows in Dover?

New windows must meet the Building Regulations and the installation needs to be certified. Most installers belong to FENSA, Certass or a similar competent person scheme and register the work themselves, so you receive a certificate to keep with the house deeds.

Do I need permission to change the windows on my Dover home?

Like-for-like window replacement on most houses falls under permitted development. The main exceptions are listed buildings, flats and maisonettes, and streets where the council has used an Article 4 direction to remove permitted development rights.

Also Serving Kent

Our Kent installers regularly travel to these neighbouring places:

Recent Sash Windows Enquiries in Dover

Real enquiries submitted by homeowners in Dover and surrounding areas. Contact details are not shown.

★★★★★4.7 averagefrom 10 local enquiries
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A***nSP10
★★★★★July 2026

Customer made an online enquiry for new double glazing. Homeowner confirmed interest via Considering a range of options Homeowner lives in Andover area 2+ windows Supply and…

A
A***iWood Park, SP11
★★★★★January 2026

Call anytime. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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D***eDL5
★★★★☆December 2025

GLAZER TO REPLACE TRIANGLE SHAPED GLASS IN A LIGHTHOUSE

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K***aDover House Road, SW15
★★★★★November 2025

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in London area and is considering a range of options for their…

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C***eNew Dover Road, CT18
★★★★☆September 2025

Call any time. Number of windows: 8 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

R
R***oLauncelot close, SP10
★★★★★September 2025

What best describes your living situation? - Homeowner - Joint. How many windows are you considering replacing? - 1. What material do you require, UPVC? - upvc. What colour do you …

C
C***lDover House Road, SW15
★★★★★July 2025

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss …

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M***nTintagel close Tintagel Close, SP10
★★★★☆June 2025

customer requested quotes for upvc door from a door fitter around andover. they are considering a couple of projects at the moment.<br/>call anytime to arrange appointment to…

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M***nTintagel close Tintagel Close, SP10
★★★★★June 2025

customer is looking to get quotes for replacement double glazing. multiple windows supply and install please call to quote. are you the property owner: owner of the property what…

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K***mHigh Street, SA20
★★★★★April 2025

customer made an online enquiry for upvc door and confirmed on email they would like a call with a door fitter to discuss prices.<br/>please call to arrange an appointment to…

Sash Windows in Dover

Vertical sliding sashes are part of the character of many older houses in and around Dover, and many owners now want to restore them or reinstate them where they were lost. The job can be anything from new cords to a complete set of new timber windows.

Describe the sashes and what you would like done and Kent Windows will pass your enquiry to independent specialists covering Dover, Kent. Where installers have capacity, you could hear from up to four of them. It is free to ask and you are under no obligation.

Overhaul, New Sashes or Full Replacement?

Where the timber is mostly sound, an overhaul can give old sashes many more years: re-cording, localised repairs and draught seals make them run smoothly and cut draughts. For listed houses, secondary glazing inside the original sash is another option.

Where only the sashes are beyond repair, new ones can be hung in the existing boxes. Otherwise, the choice is between a complete new timber window and a uPVC vertical slider, with uPVC cheaper but usually heavier in appearance.

Common Sash Problems in Dover

  • A broken cord leaving a sash dropped or propped open
  • Draughts and rattles at the meeting rails and beads
  • Rotten cills and bottom rails, often worst on exposed elevations
  • Sashes painted or swollen shut
  • uPVC sliders whose balances no longer hold the sash up

If your house lost its sashes to casements, reinstating them can transform the frontage, though you should confirm the planning position before ordering.

A sash specialist should test both upper and lower sashes. Cords, weights, pulleys, draught seals and soft timber can then be priced separately from new glazing or a complete replacement.

Sash Windows in Dover | Kent Windows Kent Windows: Free Window Quotes from Kent Installers. Compare free, no-obligation quotes from Kent window installers for double glazing replacement, uPVC casements, bay, cottage style, tilt and turn and sash windows, from Maidstone and the Medway Towns to Canterbury, Thanet, Dover and the Weald. An illustrated guide to comparing Sash Windows in Dover, covering window style, glass and ventilation, and fitting details. KENT WINDOWS Free Window Quotes from Kent Installers A KENT WINDOW GUIDE Sash Windows For homes in Dover Three details to settle before choosing an installer 1 Style & opening Match the window to the building Frame material, colour and sightlines Which panes open, and in which direction? 2 Glass & airflow Ask about the whole-window specification Energy rating and suitable safety glass Ventilation and coastal exposure 3 Survey & fitting Compare what each written quote includes Removal, making good and access Certification and product guarantees One enquiry. Compare up to four quotes. Independent installers covering Kent; responses depend on availability. Free to ask · No obligation Kent Windows introduces homeowners to installers. The chosen firm surveys, quotes and carries out the work.

What to Expect

  1. First visit: every sash, box frame and cill is checked, with a recommendation for each window.
  2. Consents: listed buildings and Article 4 areas may need approval before work begins.
  3. Workshop: new sashes or boxes are made to measure, usually over several weeks.
  4. Overhaul or installation: overhauled sashes go back into their boxes on fresh cords, or new windows are fixed in, weighted and adjusted.
  5. Finishing: beads and linings are refitted, decoration completed if agreed and each sash tested.

Specialists usually work window by window so the house stays secure. Taller townhouses may need scaffolding for upper sashes.

Details to Agree for Your Dover Sashes

Ask for a note on each window explaining what can be repaired and what cannot. Heavier double glazed sashes may need heavier weights or stronger balances, and there has to be room in the box for them to work.

Ask how the new sashes will match the glazing pattern and details of the old ones. Agree the extent of painting, how any original glass or internal shutters will be protected, and ask for each sash to be demonstrated at handover.

Sash Window Prices in Dover

The guide range for sash windows is £950–£16,500. The lower end covers one slider or one overhauled timber sash, while new double glazed timber boxes on every floor of a townhouse sits toward the top. Treat the range as a budget until your windows are surveyed.

Find out whether the quote covers VAT, access towers or scaffold, painting, splicing repairs and any plaster or lining work around the boxes.

Permission to Check First

On a house that is not listed, swapping worn sashes for new sashes of matching design rarely needs planning permission. Changing timber to uPVC, or sashes to casements, may need planning permission in a conservation area with an Article 4 direction, and any change to a listed building's windows usually needs listed building consent. Check with Dover District Council.

A brand-new sash window counts as controlled work, which a scheme-registered installer can certify for you. Re-cording, splicing and draught-proofing existing sashes count as repair, so no certificate is involved. Historic England's traditional windows guidance is useful background for period homes.

Nearby Areas We Cover

Our network includes firms covering: Walmer, Folkestone, Deal, Sandgate, Aylesham, Sandwich. Give your full postcode so firms can check coverage.

Get Free Quotes

List the sashes that stick, rattle or have dropped. Kent Windows introduces enquiries and does not repair or fit windows itself. Firms joining the network are asked for insurance details and references, so ask each one for examples of sash work on houses of a similar age to yours.

Request free sash window quotes.

Use these points when a specialist visits your Dover home.

Your Sash Window Questions Answered

How much do sash windows cost in Dover?

The guide range is £950–£16,500, from one uPVC slider or a single sash overhaul to a whole house of double glazed timber sashes.

Should I overhaul or replace my old sash windows?

If most of the timber is sound, an overhaul is usually cheaper and keeps the original character. Replacement makes sense where rot is widespread.

Do I need permission to replace sash windows in Dover?

Not usually on an unlisted house if the new windows look the same. Listed buildings need consent, and Article 4 conservation areas may restrict changes of material or style.

Can I get double glazed timber sash windows?

Yes. New timber sashes can take slim double glazed units, with heavier weights or balances. On listed buildings the council decides whether this is acceptable.