uPVC Windows in Hertfordshire
Warm, secure and virtually maintenance-free — our uPVC windows combine A+ rated thermal performance with a finish that keeps its edge for decades. Fabricated in Britain from Deceuninck and Rehau 70mm profiles, available in every standard, heritage and foil-wrapped colour, with a full choice of hardware and glass.
uPVC Windows designed around Edwardian and Victorian bays along the A1(M) corridor — acoustic packages included.
St Albans, Harpenden, Watford, Hemel Hempstead and Berkhamsted — we cover Hertfordshire's full palette of Georgian, Edwardian and modern homes with a senior surveyor on the ground every week.
The A1(M) and A41 corridor means Hertfordshire homeowners consistently benefit from acoustic-rated glazing. We spec triple-glazed and laminated options that transform a home's soundscape.
Energy-efficient upvc windows installed across Hertfordshire achieve whole-window U-values of 0.9–1.4 W/m²K, with the exact frame and glazing specification confirmed after survey.
SpecificationDeceuninck / Rehau six-chamber 70mm uPVC profile · A-rated double or triple glazing · Warm-edge Super Spacer · Stainless steel Yale locking gear · Q-Lon compression seals
What sets our upvc windows apart in Hertfordshire.
0.9–1.4 W/m²K Window U-values
Six-chamber profiles, warm-edge spacer bars and argon-filled units deliver energy-efficient whole-window performance for London and Home Counties properties.
PAS 24 Secured Locking
Yale multi-point espagnolette locking, internal beading, laminated inner panes and shootbolts as standard. Independently tested to PAS 24:2016 and compliant with Approved Document Q.
Acoustic Glass Options
Upgrade to 6.4mm acoustic laminate for up to 37 dB reduction — ideal for arterial roads, flight paths and terraced streets in Zones 1–4.
Colour & Foil Choice
White, Anthracite Grey, Chartwell Green, Painswick, Agate Grey, Cream, oak- and rosewood-effect foils, plus sprayed RAL to order. Dual-colour (different inside/out) across the range.
10-Year Guarantee, 10-Year Colour-Fast Foils
Every installation carries an insurance-backed 10-year guarantee. Our foil finishes carry a 10-year colour-fastness warranty — they will not crack, flake or fade like painted timber.
Clean-Site Installation
CERTASS-registered fitters, dust sheets on every floor, old frames removed and recycled, plaster made good, cills silicone-sealed. Most homes are re-glazed in 1–2 days.
uPVC Windows installed across Hertfordshire.
We regularly install upvc windows across Hertfordshire. Explore your town for local detail on planning, postcodes and recent work.
Common questions from Hertfordshire homeowners.
- How long do uPVC windows last?
- A well-installed uPVC window from our range is engineered for a service life of 25–35 years. All frames carry a 10-year insurance-backed guarantee and 10-year colour warranty on foil finishes.
- Can I match my existing windows?
- Yes. We survey existing frames and match sightlines, colour and glazing bar detail so replacements sit correctly in period and modern properties alike. Astragal, Georgian and lead-effect bars are all available.
- Do you replace one window at a time?
- Absolutely. Whether it's a single unit or a full house, our installers work cleanly and finish to the same showroom standard. Minimum order value applies.
- What affects the specification for uPVC windows?
- Window size, opening configuration, colour, glass and hardware all shape the final specification. We confirm every detail after a measured home survey.
- Are trickle vents required?
- Since June 2022, Approved Document F requires background ventilation on nearly all replacement windows in England. We fit slot-style trickle vents colour-matched to the frame — barely visible from below.
- Do uPVC windows work in a conservation area?
- Sometimes. Officers generally prefer flush casements or timber; standard uPVC casements are usually accepted outside designated conservation zones. We prepare drawings and finish samples for your planning officer at no charge.
- What's the difference between A, A+ and A++ rated?
- The Window Energy Rating (WER) balances heat loss and solar gain. A is the pass mark, A+ is our standard double-glazed spec, A++ is triple-glazed. Upgrading from older C-rated units to A+ glazing can noticeably reduce heat loss.
- What U-value do your uPVC windows achieve?
- Our uPVC windows achieve whole-window U-values of 0.9–1.4 W/m²K. We confirm the exact figure for each measured opening across London, Buckinghamshire, Hertfordshire, Bedfordshire, Northamptonshire and Oxfordshire.
- Can I have a different colour inside and outside?
- Yes — dual-colour foil is available across the range. White inside with Anthracite Grey outside is our most-requested combination.
- What happens to my old windows?
- Frames and glass are separated on site, glass recycled locally and uPVC profiles taken to a licensed recycler — nothing goes to landfill. CERTASS lodges the compliance certificate within 10 working days.
Related windows services in Hertfordshire.
Book your Hertfordshire survey.
Tell us about your Hertfordshire project. A senior surveyor will call within one working day to arrange a free on-site visit and fixed quote for your upvc windows.