Double glazing in Essex: compare local installer quotes
Compare free written quotes from local installers who cover your Essex postcode, for replacement windows, glass-only sealed units, repairs and like-for-like timber. Most Essex homes are post-war and already double glazed, so ask for a glass-only price too. Pick your town below or start the form.
46.3% of homes in the Essex County Council area date from 1945 to 1982
- Free and no obligation. Turn down every quote if none suit you
- Local installers who cover your Essex postcode
- Full frames or glass only: ask for both prices
How it works
From one short form to written Essex quotes
Tell us the job
Property type, window count, frame material and timing. Mention a listed home, a flat or misted units on the confirmation call.
We confirm the details
A quick call checks the details, then your enquiry goes to local installers who cover your Essex postcode.
Compare like for like
Each installer surveys and quotes in writing. Check frame or glass-only pricing, consent and Buy With Confidence before you sign.
Window replacement
Window replacement in Essex: what you can get quoted for
Essex quotes cover full-frame window replacement, glass-only sealed units and repairs, because so many homes are already on their second set of double glazing. Ask for the job that fits:
- Full-frame replacement in uPVC, aluminium or timber, casement, tilt and turn or sash
- Glass only: new sealed units for misted panes in sound frames
- Like-for-like timber for listed and conservation-area homes, once consent is in place
- Repairs to hinges, handles, locks and seals
Doors are not every window firm's trade, so ask the installer whether they fit composite, uPVC or patio doors.
Get Essex window quotesFree, no obligation
Areas this page covers
Essex areas this page covers: districts and main towns
This page covers the 12 Essex districts plus the Southend-on-Sea and Thurrock unitary councils, mostly in the CM, CO and SS postcode areas with parts of RM and IG. Romford and Ilford keep Essex postal addresses but sit in London boroughs, so see double glazing quotes in Romford or double glazing quotes in Ilford.
Southend-on-Sea
27.1% of Southend properties were built before 1919, nearly three times the county council area's 9.5% (Valuation Office Agency, March 2026).
Chelmsford
Chelmsford has 26 conservation areas, by the city council's own count, so check your street before you choose a new window style.
| Council | Main towns (postcode districts) |
|---|---|
| Basildon | Basildon (SS14 to SS16), Billericay (CM11, CM12), Wickford (SS11, SS12) |
| Braintree | Braintree (CM7), Witham (CM8), Halstead (CO9) |
| Brentwood | Brentwood and Shenfield (CM13 to CM15), Ingatestone (CM4) |
| Castle Point | Canvey Island (SS8), South Benfleet and Hadleigh (SS7) |
| Chelmsford | Chelmsford (CM1, CM2), South Woodham Ferrers (CM3) |
| Colchester | Colchester (CO1 to CO4), West Mersea (CO5), Wivenhoe (CO7) |
| Epping Forest | Epping (CM16), Loughton (IG10), Waltham Abbey (EN9) |
| Harlow | Harlow (CM17 to CM20) |
| Maldon | Maldon and Heybridge (CM9), Burnham-on-Crouch (CM0) |
| Rochford | Rayleigh (SS6), Hockley (SS5), Rochford (SS4) |
| Tendring | Clacton-on-Sea (CO15), Frinton-on-Sea (CO13), Harwich (CO12) |
| Uttlesford | Saffron Walden (CB10, CB11), Great Dunmow (CM6), Stansted Mountfitchet (CM24) |
| Southend-on-Sea | Southend (SS1, SS2), Westcliff-on-Sea (SS0), Leigh-on-Sea (SS9) |
| Thurrock | Grays (RM17), Tilbury (RM18), Stanford-le-Hope (SS17) |
Local factors
What changes an Essex double glazing quote
Six things change an Essex quote: the age of the frames, listed status, Article 4 directions, Stansted noise, the coast and grants. Tell the installer which apply when you book the survey, and every quote can price the same windows.
| In Essex | What it changes in your quote | Ask or check |
|---|---|---|
| 46.3% of homes built 1945 to 1982Valuation Office Agency | Many are on their second set of double glazing | A sealed-unit price next to a full-frame price |
| 14,000 listed building entriesHistoric England list | Almost any window change needs listed building consent | Who prepares the consent drawings |
| 62 Article 4 areasplanning.data.gov.uk | 9 of them remove or mention window rights | Your address on the district council's conservation map |
| Stansted flight pathsUttlesford District Council | The airport's sound insulation grant may pay towards windows | The noise contour, then each glass option's Rw figure |
| Thames and Blackwater seafrontsBS 6375-1 standard | Exposed frames need hardware rated for salt air | The BS 6375-1 class of each window |
| 12 districts on the Warm Homes: Local Grant listDESNZ, July 2026 | Glazing is an eligible measure | Whether your home qualifies before you sign |
Two different jobs
Which Essex window job are you getting quoted for?
Essex quotes split into two jobs: replacing post-war double glazing on estates, and heritage windows in listed or conservation homes.
Estate and post-war homes
- Only 9.5% of homes in the county council area predate 1919, against 20.6% across England and Wales.
- In Basildon, 43.6% of homes date from 1945 to 1972 and 38.8% from 1973 to 1999. Harlow follows the same new-town pattern.
- Standard casement openings, often on their second set of double glazing.
- Ask for full-frame and sealed-unit (glass only) prices. Misted units in sound frames may not need new frames.
Listed and conservation homes
- 14,000 listed building entries, about 20.5 per 1,000 homes against 14.6 for England.
- Pre-1919 homes cluster in the older districts: Uttlesford 19.5%, Tendring 14.1%, Colchester 13.1%.
- A listed building needs listed building consent for almost any window change. Like-for-like timber is often the only option accepted.
- Ask each installer for listed-building jobs they have done and who prepares the consent drawings.
Get estate or listed home quotesFree, no obligation
Planning
Do you need planning permission for new windows in Essex?
Replacement windows on an Essex house usually need no planning permission when they look similar to the originals. Your district or borough council decides the exceptions, not Essex County Council.
Three things remove the usual right:
- Listed status: listed building consent covers almost any window change.
- Conservation areas: Chelmsford has 26, Braintree 37 and Brentwood 13, by each council's own count.
- Article 4 directions: government planning data holds 62 Article 4 areas in the county, and 9 of them remove the householder alteration rights that cover windows or mention windows directly.
Check your address on your district council's conservation map first, then ask each installer whether they have handled a conservation-area application there and who prepares the drawings.
Get conservation area window quotesFree, no obligation
Noise and weather
Acoustic and coastal glazing quotes in Essex
Homes under the Stansted flight paths can apply to the Stansted Airport Sound Insulation Grant Scheme, run through Uttlesford District Council. Check whether your street falls inside the scheme's noise contour before you pay for windows in full. Outside the contour, ask installers for acoustic glass options (laminated glass, panes of different thicknesses, wider cavities) and the sound reduction (Rw) figure for each.
Essex has open sea and estuary frontage on the Thames and the Blackwater. Ask coastal installers for the window's BS 6375-1 weathertightness class and hardware rated for salt air.
Get acoustic or coastal quotesFree, no obligation
Repair or replace
Repair or replace your Essex windows?
Repair an Essex window when the frame is sound and only the sealed unit, seals or hardware have failed; replace it when the frame is warped, cracked or will not lock. A misted pane is a failed sealed unit, and a new unit fits the existing frame.
46.3% of homes in the county council area date from 1945 to 1982, so many have frames from an earlier round of double glazing. Ask each installer for a sealed-unit price and a full-frame price with the U-value stated, then compare the two.
Listed homes run the other way: repair keeps the original window, while replacement needs listed building consent.
Get repair or glass-only quotesFree, no obligation
Before you sign
How to check a double glazing company in Essex, step by step
Check an Essex double glazing company in six steps before the survey, because we do not vet installers for you and a showroom or a star rating proves nothing on its own.
- Buy With Confidence: ask whether the firm belongs to Essex Trading Standards' approved trader scheme, which businesses join only after Trading Standards checks, then confirm it on the scheme's site. Southend and Thurrock run their own Trading Standards teams.
- FENSA or CERTASS: search the firm by name or postcode on the FENSA or CERTASS register. Both are government-authorised competent person schemes, and a registered installer gives you a Building Regulations compliance certificate.
- Companies House: look up the company name on the quote. Check it is active, how long it has traded and whether it has changed name or been through liquidation.
- Guarantee: ask for the guarantee in writing and whether it is insurance-backed. FENSA does not issue guarantees, and Which? recommends a ten-year insurance-backed guarantee.
- Reviews: read profiles on Google, Checkatrade, TrustATrader and MyBuilder, and favour recent reviews that name the job and an Essex town.
- Three written quotes: price the same windows and glass, using our checklist on how to compare double glazing quotes.
If you sign at home, you usually have at least 14 days to cancel, but made-to-measure windows can be an exception, so check the contract before you sign. The double glazing cooling-off period guide explains why.
Our page on double glazing installers covers the survey and the paperwork, and the best time to buy double glazing helps you plan when to book.
Related guides
FAQ
Double glazing in Essex, answered
Is there a grant for double glazing in Essex?
All 12 Essex districts are on the July 2026 Warm Homes: Local Grant list, and glazing is an eligible measure. Homes inside the Stansted noise contour can also apply to the airport's sound insulation scheme.
Do I need planning permission to replace windows in Essex?
Usually not for a house, when the new windows look similar to the old ones. Listed buildings need listed building consent, and conservation areas or Article 4 directions can remove the right. Your district or borough council decides, not Essex County Council.
How do I check a double glazing company in Essex?
Ask whether the company belongs to Essex Trading Standards' Buy With Confidence scheme, then check FENSA or CERTASS registration yourself. Compare at least three written quotes for the same windows before you sign.
Is it worth replacing 20 year old double glazing?
Replacing 20-year-old double glazing is worth it when the frames are warped, cracked or no longer lock; misted units, worn seals and stiff hardware in sound frames are repairs. Ask each installer to price sealed-unit replacement and full-frame replacement separately.
What are the disadvantages of double glazing?
The main disadvantages of double glazing are the upfront cost, sealed units that mist when their seal fails, and a less original look on period homes. Tighter frames also cut natural draughts, so ask how each window is ventilated, for example with trickle vents. A listed home needs consent for almost any window change, and Essex has about 14,000 listed entries, so repair or secondary glazing can be the simpler route there.
What is the average cost of double glazing windows in the UK?
The average depends on the window count, size and material, and our sister site sets out what double glazing costs in each UK region.
How much should I expect to pay for double glazing?
Expect the price to follow the window count, frame material, glass and any consent work, so compare written quotes for the same specification; the regional link in the answer above gives the figures.
Get Essex quotes that price the same job
Tell us your property, window count and frame material. Local installers who cover your postcode then survey and quote in writing. Near the county border, see double glazing quotes in London or, across the Thames, double glazing quotes in Kent, or compare double glazing quotes anywhere in the UK.
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Sources
- Valuation Office Agency, Council Tax: stock of properties 2026, table CTSOP4.1 (build period), reference date 31 March 2026: gov.uk
- Historic England list, conservation area and Article 4 data via planning.data.gov.uk (dataset flagged incomplete): planning.data.gov.uk
- Council conservation area pages: Chelmsford, Braintree, Brentwood
- Planning Portal, doors and windows: planningportal.co.uk
- Uttlesford District Council, Stansted Airport Sound Insulation Grant Scheme: uttlesford.gov.uk
- Essex County Council, Trading Standards trader approval scheme: essex.gov.uk
- DESNZ, Warm Homes: Local Grant successful local authorities (updated 2 July 2026): gov.uk
- BS 6375-1, the UK standard for window weathertightness (air, water and wind resistance)
- GOV.UK, competent person schemes (FENSA and CERTASS authorised for replacement windows): gov.uk
- FENSA, homeowner advice (certificates, guarantees, installer search): fensa.org.uk; CERTASS, compliance certificates: certass.co.uk
- Companies House, company search: gov.uk
- Which?, your rights when buying double glazing (ten-year insurance-backed guarantee): which.co.uk