Choosing uPVC Windows in Yorkshire: Trusted Advice from Lockwood Windows

1. What are uPVC windows?

uPVC windows - short for unplasticised polyvinyl chloride - are window frames made of rigid synthetic plastic. In the UK market, they've become one of the most popular choices for home improvements. We offer a wide range of premium‑quality uPVC windows, custom‑designed and made to measure for homes across Yorkshire.

2. Why buy uPVC windows?

Cost-effective: uPVC remains the most affordable among window materials.
Low maintenance: Unlike timber, uPVC frames don’t need repainting or treatments and are easy to clean - perfect for busy Yorkshire households.
Durable: Weather-resistant and long‑lasting. We install robust uPVC systems that are engineered to endure the region's varied climate.

3. Quality and security

We use uPVC systems certified to British and EU standards, prioritising quality and safety:

BSI/British Standards: High‑performance systems typically meet BS 7950 or PAS 24 for enhanced security, along with BS 7412/EN 12608 for strength and weather‑tightness.
Multi-point locking: Modern uPVC windows feature multi-point locking mechanisms to help resist forced entry.
FENSA registration: We are registered with FENSA - a government-authorised scheme that self-certifies compliance with building regulations in England and Wales, giving homeowners peace of mind.

4. Energy efficiency and insulation

uPVC windows deliver on thermal performance:

Low U-values: Multi-chamber profile systems and reinforced frames deliver U‑values of around 1.0 W/m²K or lower, often securing an ‘A+’ BFRC energy rating.
Double and triple glazing: These reduce heat loss, lower your energy bills, and help homes stay warmer in winter and cooler in summer.
Noise reduction and comfort: Such glazing also dampens outside noise - especially helpful in busier areas.
Condensation control: High‑performance seals and Low‑E glass help reduce internal condensation and maintain a healthy home environment.

5. What styles of uPVC windows are available from Lockwood Windows?

We provide a wide selection of classic and modern styles to suit various architectural preferences:

Casement windows: A hugely popular choice, casement windows are the perfect replacement option for existing uPVC or old timber windows. Featuring energy efficient glass and secure locking mechanisms, we can fit these into any window aperture with a range of window opening options.

Tilt-and-turn: The versatile dual-purpose window, our tilt and turn windows enable you to open them inwards for easy cleaning, while the easy tilt option allows generous ventilation without compromising on security.

Flush sash windows: Our Kommerling Flush Sash casement windows range gives you all the thermal and security benefits of an ultra modern window frame but with the aesthetics and styling of a more traditional window. Already popular in Scandinavia, uPVC sash windows are low maintenance alternatives, and perfect for heritage homes or period properties.

We can provide tailored solutions with expert guidance to match your home’s style and planning requirements.

6. Are there councils or bodies that a supplier should be affiliated to as a sign of quality?

Yes - looking out for accredited schemes is important: We are members of the following:

FENSA: Ensures installations meet Building Regulations. All work is certified and buyers receive a legal compliance certificate.
TrustMark: A government-endorsed quality mark (though not mandatory, it reflects high industry standards).
BFRC (British Fenestration Rating Council): Provides verified energy‑performance ratings that indicate expected heating cost savings and thermal efficiency.
Build Check: UKAS accredited testing laboratory and certification body, specialising in testing and certification services for the fenestration (window) industry.