Windows, Doors, Conservatories and Glass across Berkshire

Fitting across east and south Berkshire since 1972, from Ascot and Sunningdale through Bracknell, Sandhurst and Crowthorne to Wokingham and Reading.

Installed by our own FENSA registered team, not subcontractors. Showroom in Guildford, just over the Surrey border.

Berkshire is really two counties. The east is Thames Valley and M4 corridor: Slough, Reading, Bracknell, Windsor, Maidenhead, high tech employers and a housing stock that runs from Victorian terraces to a 1949 new town. The west is chalk downland, racehorse training and North Wessex Downs, and around three quarters of West Berkshire carries a National Landscape designation.

We work the eastern and southern end of it, the part nearest to us. We will tell you honestly if you are outside that.

Where we work in Berkshire

Berkshire has had no county council since 1998. It is six unitary authorities: Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead, and Wokingham. Which one you are in changes who you deal with for planning, and the housing varies just as much.

Here is the picture, and where we genuinely work.

Part of Berkshire Towns What the housing is typically like, and how far we are
The Ascot belt **Ascot**, North Ascot, South Ascot, Sunninghill, Sunningdale, Cheapside, Winkfield Our closest part of Berkshire and our strongest. Large late Victorian and Edwardian houses in spacious grounds, a postwar town centre, and 1970s and 1980s estates. Around 17 miles from the showroom. **Ascot has its own page**
Bracknell Forest Bracknell, Sandhurst, Crowthorne, Binfield, Warfield, College Town Bracknell was designated a new town in 1949 and built on the neighbourhood principle, with districts of around 10,000 people each: Priestwood, Birch Hill, Great Hollands, Wildridings, Hanworth. A large and homogeneous post 1950s stock, much of it now on its second generation of glazing. Sandhurst and College Town are GU47, the same postcode area as our showroom. Genuinely close
Wokingham borough Wokingham, Woodley, Earley, Winnersh, Twyford, Wargrave, Finchampstead, Shinfield, Sonning The highest home ownership of any Berkshire authority: only around 18 per cent of residents rent. Lower Earley, begun in 1977, was one of the largest private housing schemes in Europe. A settled, improvement minded market, comfortably within reach
Reading and the Thames Valley Reading, Caversham, Tilehurst, Woodley, Theale, Pangbourne, Purley on Thames Reading has Victorian terraced housing from its nineteenth century manufacturing expansion and 853 Grade II listed buildings. It is a longer trip than Bracknell but a real market, and the sash and flush casement work suits what we do
Windsor, Maidenhead, Slough and the far west Windsor, Eton, Maidenhead, Cookham, Datchet, Slough, plus Newbury, Thatcham, Hungerford and Lambourn in West Berkshire The furthest from us. Windsor’s streets are mostly mid to late nineteenth century. Slough has only 96 listed buildings and grew from a rural hamlet after 1920, so it is overwhelmingly twentieth century. West Berkshire is a different market again, largely rural and around three quarters National Landscape. We will be straight with you about lead times here rather than promise a next day survey

Not sure whether we cover you? Check your postcode. It takes ten seconds and it is a better answer than a map.

Do I need permission to replace windows in a Berkshire?

Usually not. Replacing windows in a house is normally permitted development, and that still applies inside a conservation area. It changes if your house is listed, or if your council has made an Article 4 direction covering your street, which withdraws permitted development rights. Flats and maisonettes are treated differently to houses.

Berkshire has no county council, so the authority you deal with is one of six unitaries: Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead, or Wokingham. We establish which applies to your address at the survey.

The North Wessex Downs, and where it actually is

The North Wessex Downs National Landscape, designated in 1972 and covering around 1,730 square kilometres, spans Berkshire, Hampshire, Oxfordshire and Wiltshire. In Berkshire it covers the west of the county: around three quarters of West Berkshire district, taking in the Berkshire Downs and the horse racing village of Lambourn, and reaching as far east as the suburbs of Reading.

It does not cover Slough, Windsor, Maidenhead, Bracknell, Wokingham or Ascot. Anyone telling you Berkshire has a county wide AONB has not checked. The Chilterns, which people often assume covers part of Berkshire, does not extend into the county at all.

Green belt

Green belt coverage varies enormously across Berkshire: around 83 per cent of Windsor and Maidenhead, 35 per cent of Bracknell Forest, and 16 per cent of both Wokingham and Slough on 2014 government figures. That matters far more for conservatories, orangeries and garden rooms than for replacing windows, but it is why a glazed extension needs the planning position established before the design rather than after.

What we fit on period and conservation area property

  • Secondary glazing, which sits behind the original window and changes nothing about how the house looks from the street
  • Timber and timber alternative flush casements, which sit flush in the frame the way pre war windows did
  • Vertical sliding sash windows in timber, timber alternative or uPVC
  • Mock sash, where the look matters more than the mechanism and the budget is tighter
  • Heritage colour ranges and traditional ironmongery
  • sash window

    Recent installations in Berkshire

    Expertise You Can Trust

    Proudly serving Surrey since 1972, we’re a family-run glazing company offering quality windows, doors, conservatories, and bespoke glass solutions. Whether you’re upgrading your home’s look with double glazing, choosing a new front door, or planning a unique orangery, our team is here to bring your vision to life.

    Why Berkshire homeowners choose Sheerwater Glass

    • Fifty four years of it. We started in 1972 and have been fitting across Surrey and the Berkshire border ever since.
    • Our own installers do the work. FENSA registered, City and Guilds and GQA qualified, employed by us. Nobody is subcontracted, so the person who surveys your house works for the same company as the person who fits it.
    • We know the Bracknell stock. A large and homogeneous post 1950s new town housing stock, now on its second generation of glazing, is a very specific job and we have done a lot of it.
    • We will fix what someone else fitted. Misted units, dropped doors, failed hinges and locks. You do not need to have bought from us.
    • The guarantee is insurance backed. 10 years on frames, glass and workmanship, underwritten by QA National Warranty, so your cover survives even if we are not here to honour it.

    How long does an installation in Berkshire take?

    Around 8 to 10 weeks from order to fitting, and 1 to 2 days on site for most jobs. Here is the whole sequence.

    Stage How long
    Enquiry to home visit As little as 2 working days
    Home visit to quotation 2 working days, up to 5 for specialist items
    Order to technical survey Up to 10 working days
    Order to installation Generally 8 to 10 weeks
    Time on site Typically 1 to 2 days for a full house
    Do you need to move out? No. You stay in the house throughout

    You get a fitting date when you order, not a window of weeks. If a delivery slips, we call you before you have to call us.

    Why quotes are valid for 14 days

    Glass manufacturing is heavily energy dependent, so our costs move with energy prices. Rather than pad every quotation against a rise that may not happen, we quote the real number on the day. If it lapses, come back whenever you are ready and we will requote free of charge.

    Fitters Installing Black uPVC Slimline windows

    Hear from our customers

    “Nick from Sheerwater Glass just finished fitting my windows – Great service, quick, efficient and very friendly. Definitely recommend.”

    Deborah Proudfoot
    Sheerwater Glass Customer

    Where is your nearest showroom to Berkshire?

    Unit B5, Moorfield Point, 41 Slyfield Industrial Estate, Guildford, GU1 1RU. Just over the Surrey border, and closer to south Berkshire than you might expect: Sandhurst and College Town share the GU postcode area with us.

    From Ascot it is around 17 miles. From Bracknell and Sandhurst it is a similar trip. From Reading it is further, and from Newbury further still, so if you are at the western end we would rather measure and quote at home than have you make the drive.

    Day Opening hours
    Monday to Thursday 9am to 5pm
    Friday 9am to 4pm
    Saturday 9am to 1pm
    Sunday and bank holidays Closed
    Glass and repairs surgery Tuesday and Thursday 2pm to 5pm, Saturday 9am to 1pm

    Planning your next project? Check if we cover your area.

    Sheerwater Glass proudly provides window and door installations, repairs, and glazing services throughout Surrey and the surrounding areas from our showroom in Guildford.

    To find out whether we cover your area, simply click the button below and check your postcode.

    Check your postcode

    Sheerwater Glass in Berkshire, at a glance

    Detail Answer
    Trading since 1972
    What we fit in Berkshire Windows, doors, conservatories and orangeries, cut glass and glazing, repairs to any make
    Where we work East and south Berkshire primarily: Ascot, Sunninghill, Sunningdale, Bracknell, Sandhurst, Crowthorne, Binfield, Warfield, Wokingham, Woodley, Earley, Winnersh, Finchampstead, Twyford and Reading. Windsor, Maidenhead, Slough and West Berkshire are at the edge of our range
    Postcodes areas SL5 and RG primarily, plus GU47 at Sandhurst and College Town
    Local authorities Six unitaries: Bracknell Forest, Reading, Slough, West Berkshire, Windsor and Maidenhead, and Wokingham. There has been no Berkshire County Council since 1998
    Nearest showroom Unit B5, Moorfield Point, 41 Slyfield Industrial Estate, Guildford, GU1 1RU
    Who does the fitting Our own employed installers. FENSA registered, City and Guilds and GQA qualified. We do not subcontract
    Accreditations FENSA, Which? Trusted Traders, Checkatrade, TrustMark, ISO 9001
    Typical lead time 8 to 10 weeks from order to installation, then 1 to 2 days on site for most jobs
    Guarantee 10 years on frames, glass units and workmanship. 5 years on moving parts and hardware. Insurance backed by QA National Warranty
    Phone 01932 344 415

    Woking: your questions answered

    Do you cover the whole of Berkshire?

    We cover the east and south of it properly: Ascot and Sunningdale, Bracknell, Sandhurst, Crowthorne, Wokingham, Woodley, Earley and Reading. Windsor, Maidenhead and Slough are across the M4 and further out, and West Berkshire, meaning Newbury, Thatcham, Hungerford and Lambourn, is the far end of the county. We will be straight with you rather than promise coverage we cannot deliver well. Check your postcode for a definite answer.

    Which council do I deal with in Berkshire?

    Usually not. Replacing windows in a house is normally permitted development, including inside a conservation area. It changes if your house is listed, or if your unitary authority has made an Article 4 direction covering your street. We check the position on your address at the survey.

    Do I need planning permission to replace my windows in Berkshire?

    It depends on the material, the style and how many windows you are replacing, so any figure quoted before a survey is guesswork. What we can tell you is that the quotation is free, it is written, it is valid for 14 days, and there is no obligation attached to it. Finance is available over terms up to 10 years through Dopple if you would rather spread it.

    Is Berkshire in an AONB?

    Part of it. The North Wessex Downs National Landscape covers the west of the county, around three quarters of West Berkshire district, taking in the Berkshire Downs and Lambourn and reaching as far east as the Reading suburbs. It does not cover Slough, Windsor, Maidenhead, Bracknell, Wokingham or Ascot. The Chilterns does not extend into Berkshire at all, despite bordering it.

    My house is on a Bracknell estate. What do you normally fit?

    Slimline uPVC casements, most of the time, and composite front doors. Bracknell was designated a new town in 1949 and built as districts of around 10,000 people each, so the housing is consistent and the apertures are a reasonable size. A slimline frame gives you noticeably more glass and a better U value in the same opening.

    Where is your nearest showroom?

    Unit B5, Moorfield Point, 41 Slyfield Industrial Estate, Guildford, GU1 1RU, just over the Surrey border. Sandhurst and College Town actually share the GU postcode area with us. From Ascot and Bracknell it is a straightforward trip. From the western end of the county we would rather measure and quote at home.

    Can you repair windows and doors another company fitted?

    Yes. Misted or blown sealed units, dropped or sticking doors, failed hinges, handles and locks, broken glass, VELUX faults and traditional putty glazing. You do not need to have bought the original installation from us.

    Can I buy just one piece of glass?

    Yes. We cut glass to order: replacement sealed units, mirrors, splashbacks, shelves, table tops, shower screens, greenhouse glass and safety glass. Bring your measurements to the glass and repairs surgery in Guildford, or send them through the cut glass quote form.

    Will I get a FENSA certificate?

    Yes, automatically, on every installation that qualifies. You will need it when you sell the house.

    How long have you been working in Berkshire?

    The company has been trading since 1972 and has worked across the Surrey and Berkshire border throughout.

    Ready to get a quote?

    You’ll speak to a real person, not a call centre. We’ll talk you through options, no pressure.