Thame · Oxfordshire
Aluminium Windows in Thame
Planning an extension or renovation in Thame? We can supply and fit aluminium windows made to your sizes, with dual-colour frames and glass chosen room by room.
- OX9
- Guide from £925
Aluminium windows in Thame
Aluminium windows are fabricated to order: profiles are cut, coated, assembled and glazed to the survey sizes. Lead times can be longer than for standard white uPVC, particularly for special colours or steel-look designs, and the expected timescale is confirmed in writing when you accept the quote.
Modern aluminium window frames contain a thermal break: strips of low-conductivity material, usually polyamide, that separate the inner and outer aluminium. Without it, heat passes straight through the metal. Older aluminium windows made without thermal breaks are a common cause of cold frames and streaming condensation.
Upper-floor windows may need to work as escape routes. In England, Approved Document B guidance for an escape window is an unobstructed openable area of at least 0.33 m², at least 450mm high and 450mm wide, and no more than 1100mm from floor to the bottom of the opening.
Security on aluminium windows comes from multi-point locking, internally glazed beads, lockable handles and robust hinges. For easily accessible windows in new homes in England, Approved Document Q expects security to the PAS 24 standard, and specifying the same for ground-floor replacements is a sensible precaution.
What's included
- Removal and disposal of the existing windows
- Sealed double or triple glazed units to specification
- Thermally broken aluminium frames powder coated to order
- Written guarantee terms and advice on building regulations sign-off

Local details for Thame
- Postcodes covered
- OX9 and the surrounding area, including Aylesbury, Oxford and High Wycombe
- Coast
- Thame is well inland, around 98 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Thame the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. Slim aluminium frames let more daylight through the same opening. Large south or west-facing panes can overheat rooms, so solar-control glass may help, while north-facing rooms benefit from high light-transmission low-E glass that keeps heat in during short winter days.
- Access and setting
- Rural homes often mix old stone walls with modern extensions, and aluminium suits both when profiles are chosen carefully. Irregular openings are measured individually, and exposed sites benefit from systems with high weather ratings and well-sealed joints against driving rain.
- Rules in England
- Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Guide prices in Thame
| Typical job | Guide price inc VAT |
|---|---|
| Casement window, 900 × 1050 mm | £925 – £1,195 |
| Casement window, 1200 × 1200 mm | £1,095 – £1,395 |
| Large window, 1800 × 1500 mm | £1,495 – £1,995 |
| Slimline heritage style, 1200 × 1200 mm | £1,295 – £1,695 |
Get a guide price for your size
Listed buildings in England need listed building consent for most changes to historic windows or glass, and conservation areas can restrict changes visible from the street. Speak to the council's conservation officer before ordering.
What you can choose
Flush casement
Sashes sit level with the outer frame for a clean, timber-like look, often chosen for period-style or contemporary homes.
Dual-colour powder coat
A different colour inside and out, such as anthracite grey outside with white inside, from a wide range of RAL colours and textures.
Glass upgrades
Triple glazing, laminated acoustic glass, solar-control coatings or obscure glass, chosen per window to suit the room and elevation.
Aluminium Windows in Thame: questions
Do aluminium windows get condensation on the frames?
Modern thermally broken aluminium windows are far less prone to frame condensation than older aluminium windows made without a thermal break. Condensation can still form on any window if a room is humid and poorly ventilated, so trickle vents, extractor fans and sensible heating still matter. Warm-edge spacer bars also help keep the edges of the glass warmer.
What guarantee do aluminium windows come with?
Manufacturer guarantees apply to the frames, powder coating, hardware and sealed units, and the terms are confirmed in writing. Coating cover often depends on the site environment and on regular cleaning, so read the conditions. Guarantee terms for the installation are set out in writing with your quote, before you agree to go ahead.
Are aluminium windows secure?
Aluminium windows can be very secure, because the metal is strong and the frames carry multi-point locks, internal glazing beads and lockable handles. For easily accessible windows in new homes in England, Approved Document Q expects PAS 24 security. Asking for windows tested to that standard is a good benchmark when replacing ground-floor windows in an existing home.
How do I look after powder-coated aluminium windows?
Clean powder-coated aluminium windows with warm water and a mild, non-abrasive detergent a few times a year, then rinse and dry. Avoid scouring pads, solvents and pressure washers close to the seals. Keep drainage slots clear and put a little light oil on hinges and locking points. Near the coast, more frequent washing removes salt deposits.
Do you cover Thame for aluminium windows?
Yes. We can quote for aluminium windows across Thame and the surrounding Oxfordshire area, including postcode districts OX9, and nearby Aylesbury, Oxford and High Wycombe. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Thame
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.