New roof installation Windsor: here’s what changes when your property sits in a conservation area or carries listed status. And what the process involves either way. Windsor is one of the few places on our patch where a straightforward decision — repair or replace. Can come with a genuine planning question attached. That’s because a meaningful share of the town sits within the Windsor Town conservation area, and the council has individually listed a number of properties. M.K & Sons Roofing Ltd installs pitched and flat roofs across Windsor (SL4) and the surrounding area, with a free survey that covers both the roofing work and, where it’s relevant, what you’ll need to check with the council before starting. Here’s what that actually involves.
New Roof Installation Windsor: When Repair Isn’t the Answer
The same signs apply in Windsor as anywhere else: tiles or slates failing across large areas rather than in one spot, recurring leaks that move location, sagging roof planes, or a roof that’s simply reached the end of its expected life (40–60 years for concrete or clay tile, well over 100 for well-maintained natural slate, 15–30 years for flat roofing systems). Where it’s one isolated fault, a repair is the right call. Where the covering itself has failed broadly, replacement is the straightforward recommendation. This matters even more on a period property in central Windsor. What you replace it with matters as much as the decision to replace it.
Conservation area and listed building basics
If your property is in the Windsor Town conservation area or is a listed building, replacing the roof isn’t automatically a simple like-for-like job:
- Article 4 Directions can remove permitted development rights that would otherwise let you replace a roof covering without planning permission — meaning even a like-for-like reroof in some conservation area streets may need an application. This varies street by street.
- Listed buildings require Listed Building Consent for most roofing work, even repairs in some cases, regardless of whether the materials are changing. Get this wrong and you’re not just facing a fine. Unauthorised work on a listed building can require you to reverse it.
- Material matching matters more here. Slate profile, tile colour and texture. And even the pattern of lead flashing can be conditions of consent, not just aesthetic preferences.
None of this is a reason to delay a genuine emergency make-safe. We treat active water ingress differently to full replacement work. But for a planned re-roof, the right first step in Windsor is checking with the Royal Borough of Windsor and Maidenhead’s planning department, or asking us to flag it during the survey. Do this before assuming a straightforward like-for-like job. We’re not planning consultants, and we don’t pretend to be. But we’ve done enough roofs in this area to know when a job needs that check before it needs a scaffold.
Materials for Windsor’s roofs
For period properties in the historic core, natural slate and clay tile in matched profiles are usually the right call, both for consent purposes and because they suit the buildings. For the more modern housing in Dedworth, Clewer and the wider outskirts, concrete tile with dry ridge and dry verge systems is a straightforward, durable option. It doesn’t carry the same material-matching constraints. Flat roofing — EPDM, GRP or felt — covers extensions and outbuildings across both.

New Roof Installation Windsor: What the Process Involves
- Free survey, covering the roof itself and, where relevant, a plain-language flag on whether your property’s location or listing means you’ll need to check with the council first.
- Written, itemised quote — materials, labour and access as one figure, with no surprises added once work starts.
- Installation, carried out to match existing materials and detailing where that’s required, not just where it’s easiest.
- Final inspection and clean-up, with the work fully guaranteed.
A residential re-roof typically takes three to seven days. Where listed building consent or conservation area sign-off comes first, the timeline depends on the council’s process, not ours. We’ll be upfront about that during the survey rather than promising a date we can’t control.
Common questions before you commit
How much does a new roof cost in Windsor? It depends on roof size, materials, access and, where relevant, any constraints from a conservation area or listing. We quote after a free survey, not from a generic price list. A like-for-like slate re-roof on a listed cottage and a concrete tile replacement in Dedworth are very different jobs.
How can you tell a dodgy roofer? The same checks apply everywhere. Look for real company registration, proof of public liability insurance, a written quote rather than a verbal figure, and no pressure for a large cash deposit. And evidence of completed local work. In a conservation area, add one more: ask whether they’ve handled Listed Building Consent or Article 4 requirements before. And ask them to show you, not just tell you.
Do I need planning permission to replace my roof in Windsor? Often not, for a straightforward like-for-like replacement outside the conservation area. Inside it, or on a listed building, the answer changes. Check with the Royal Borough of Windsor and Maidenhead’s planning department before assuming either way. And treat anyone who tells you with total confidence that “you’ll be fine” without checking your specific address as a reason for caution, not reassurance.
Working on a property without conservation constraints? See our guide to new roof installation in Croydon for a straightforward comparison.
Get Your New Roof Installation Windsor Survey, Free
Whether your roof is a straightforward like-for-like job or one that needs a planning check first, a survey costs nothing and starts with an honest answer either way. Call 07720 607862 or email info@mkandsonsroofinglimited.co.uk.
