Windows, doors and York conservatories
Calder Windows in York
We’re Calder Windows, a family-run door and window specialist serving York and the surrounding area. Based in Normanton, we’ve been fitting windows, doors, conservatories and extensions across North and East Yorkshire for over 30 years, including York’s historic centre, its Victorian suburbs, and the growing modern developments on the outskirts.
York conservatories are a particular specialism — conservation area rules are strict, and our team knows the council-approved styles and finishes for the city's historic streets.
York has some of the most protected housing in the country
The historic centre of York is a UNESCO World Heritage site, and a huge portion of the city sits within conservation areas or close to listed buildings. Replacement windows and doors here need careful specification. It’s one of the more rule-bound places we work, and we take the planning side seriously.
Outside the historic core, York has a strong Victorian and Edwardian suburban stock, a good run of 1930s semis, modern estates, and the new developments around the ring road and out towards Haxby, Dunnington, and Copmanthorpe.
Central York and conservation areas
Most replacements in central York are in sliding sash or flush sash profiles, often with slim-sightline double glazing to meet conservation requirements. We check planning rules for every project in these areas before we quote.
Victorian and Edwardian terraces
Clifton, Heworth, South Bank, Holgate, Leeman Road, Scarcroft, and the streets around the racecourse. Sash and flush sash casement windows dominate the work, often in heritage colours.
1930s semis and suburban York
Acomb, Dringhouses, Fulford, Bishopthorpe, Heworth. Bay windows and casement replacements are the most common requests, with anthracite grey, Irish oak, and white finishes leading the colour choices.
Modern developments around the ring road
New-build estates around Haxby, Wigginton, Huntington, Strensall, Dunnington, and Copmanthorpe. Casement and aluminium windows with bifold doors on rear extensions.
Listed buildings
York has a high concentration of listed buildings, especially in the historic core. Listed building consent is a separate process from normal planning, and in most cases timber is the only permitted material for windows. We’ll flag this upfront and point you in the right direction if your property is listed.
What we fit in York
Windows
Full range, but sliding sash and flush sash casement windows are the most-requested for central and suburban York. We also fit a lot of bay windows on the 1930s semi stock across the city.
Doors
Composite front doors, Rockdoor, uPVC, heritage-style aluminium, and our Premium Collection for higher-value restorations.
Conservatories and orangeries
York has a big stock of tired late-1990s and early-2000s conservatories that need either a roof upgrade or a full replacement. Warm roof conversions are one of our most-requested services in the York area.
House extensions in York
Single-storey rear extensions are a growing part of our York work. Most qualify under permitted development, though any extension in a conservation area or near a listed building needs a full planning application. We handle either route.
Areas of York we cover
Not exhaustive. If you’re in York or the surrounding area, get in touch.
- Central York, inside and just outside the walls
- Clifton, Heworth, South Bank, Holgate, Leeman Road
- Acomb, Dringhouses, Fulford, Bishopthorpe
- Haxby, Wigginton, Huntington, Strensall
- Dunnington, Copmanthorpe, Askham Bryan, Askham Richard
- Stamford Bridge, Elvington, Naburn
- Easingwold, Tadcaster, and the outer villages
Why York homeowners pick Calder
Conservation area experience
Over 30 years of work on period and heritage properties, including in Harrogate, central Leeds, and York’s conservation areas. We know what local planning officers expect and we fit profiles that meet the requirements.
Honest about listed buildings
If your property is listed and needs timber, we’ll tell you straight. We don’t try to sell uPVC where it can’t go.
All the right accreditations
FENSA-registered, Which? Trusted Trader, CERTASS-certified, Secured by Design on qualifying products. Every install signed off to current building regs.
Straight-talking quotes
No long sales pitches, no pressure tactics. Written quote, clear scope, time to think. If we’re not the right fit for your project, we’ll say so.
York location FAQs
Do you work in York conservation areas?
Yes, and we check local planning rules for every specific property. Where uPVC sliding sash is allowed, we fit it. Where timber is required, we’ll tell you straight.
Can you fit uPVC windows in the historic core?
Sometimes, depending on the specific street and property. Listed buildings usually can’t take uPVC. Conservation area properties often can, with the right profile.
How far from Normanton is York?
Around 50 minutes by road. Easily within our service area for surveys and installs.
Do you cover Haxby, Dunnington, and the outer villages?
Yes. All regular service areas for us.
Can I visit your Normanton showroom from York?
Yes. Around 50 minutes by car. Worth it to see the sliding sash and flush sash profiles in daylight before committing.
Do you offer finance on York projects?
Yes. Finance is available on qualifying projects across our full service area.
