Windlesham facade sealing
Facade joint and window perimeter sealing on commercial buildings in Windlesham and across Surrey. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Weathered joints at frame-to-structure perimeters
- Staining on stone next to old sealant
- New sealant peeling off old mastic
Need facade sealing in Windlesham?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our facade sealing in Windlesham
A good facade joint depends on design as much as product. Joint width needs to match how far the joint moves and how far the sealant can stretch, and closed-cell rod sets the depth, keeping the bond to two faces, often at around 2:1 width to depth, as the manufacturer advises. We work on stone and brick facade joints, perimeter joints where frames meet the structure and shopfront frames, and the usual reasons a site gets in touch are draughts around frames and panels and perimeter sealant that has split or peeled away. Facilities teams, main contractors and managing agents in Windlesham tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
For a contractor on a smaller site near Windlesham, one mastic visit at the right stage saves return trips. Let us know the key stages and we’ll time the work so nothing waits on us.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Location
- Windlesham (GU20)
- Region
- Surrey
- Guarantee
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Common problems we fix in Windlesham
Sometimes the substrate is the problem: crumbling render, spalling concrete or flaking paint take the sealant with them. When the joint edges need repair first, we say so.
If one of these sounds familiar, it’s time for a closer look:
- Staining on stone next to old sealant
- Cold air coming in at window perimeters
- Damp patches beside frames after rain
- Cladding panel joints that have opened up
On a healthcare site such as Heatherwood Hospital (3.3 miles north-west of Windlesham), new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
What to look for in a quote
- How the joint faces will be prepared and primed
- How long is the guarantee, and what does it include?
- Whether old or failed sealant will be cut out, not overlaid
- What site paperwork they can supply
Nearby places to Windlesham
More services for Windlesham
Keeping the joints sound
For the best life from the joints:
- Record the product and colour used on each elevation
- Keep pressure washers away from fresh sealant
- Avoid patch repairs on failed facade joints
- Clear debris that holds water against joints
Blocked sills and gutters push water at the joints. Sealant copes better when water runs off the facade as designed rather than sitting against the joints.
Deal with sections that fail early as soon as they show. A few metres resealed promptly can stop water damage spreading inside the building.
What happens if it’s left?
Open facade joints also let air and dirt through: draughts around frames add to heating costs and complaints. A new seal closes the gap for both. For buildings in places like Windlesham, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
What you get with us
- Products installed to the manufacturer’s instructions
- One number for every site we cover
- Failed material removed, not covered up
- Colour agreed before work starts
Read our cost guide or how we’re accredited.
Diagnose, treat, sign off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Work in places the size of Windlesham is planned as a single visit where we can. Clear photographs and measurements help us bring the right products.
- We look at the joints, the drawings and the access before pricing.
- The old bead is cut away completely, not overlaid.
- Both faces are cleaned and, where the product needs it, primed.
- Backing rod, or bond-breaker tape in shallow joints, limits the depth.
- The new sealant goes in and is tooled firmly onto both faces.
- The completed runs are checked with you, then the 12-month guarantee applies.
What we need from you
- Send any specification or drawings in advance
- Tell staff and tenants when we will be in
- Move anything stored against the joints
Quotes
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, speak to us on 01277 525 020 or email us.
Advice
Surface by surface
Render and coated surfaces
Where the joint will be painted over, a paintable hybrid or PU sealant may suit. The choice depends on the specification and finish.
Brick and stone facades
Brick and stone facades have perimeter and movement joints that need a compatible sealant. We avoid acetoxy silicone, which can stain some natural stone, and primers go on where specified.
How the quote is worked out
What shapes the price:
- Removal of failed or old sealant
- Access and working height
- Induction, permit and paperwork requirements
- Travel to remote or island sites
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What we need to price the job
For an accurate fixed quote, we need a clear picture of the site. Useful things to include:
- What the building is and how it’s used
- The postcode of the building
- When you need the work done
- Approximate linear metres or a joint schedule
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Common questions from Windlesham clients
Would you work within a site like Heatherwood Hospital?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Is Ascot Business Park, near Windlesham, within your area?
Yes, sites like Ascot Business Park are within our area, along with the rest of Windlesham. To start, just give us a call on 01277 525 020 or use the quote form with the unit, the joints involved and your access times.
Can you just add new sealant on top?
No. New sealant won’t hold on old sealant, so the old bead is cut away and the faces are cleaned before resealing. That is what makes the new joint last.
Is old mastic on our building likely to contain asbestos?
It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder. If asbestos is suspected, work stops until it is tested.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
How long does a typical visit take?
The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.
Can you find out why a window is leaking?
Yes. Photos are often enough to start, followed by a visit if needed. Many frame leaks are sealant failures, though not all.
Sites and facades in and around Windlesham
Central London is about 26 miles from Windlesham. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme. A 2-mile radius around Windlesham takes in several hotels. When hotels extend or refit, the work is usually squeezed between peak periods, mastic included.
Building work at universities like Imperial College Silwood Park Campus (3.1 miles north of Windlesham) is often timed for the summer, mastic included. When a school such as Windlesham Village Infant School is extended or refurbished, the mastic package is often squeezed into the holidays.
Windlesham is about 4 miles north-east of Camberley, in Surrey. Anywhere in GU20, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our Surrey coverage takes in 379 places, large and small. There’s a separate page for Reading, about 15 miles away.
Anyone looking for facade sealing in GU20 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Church Road, Finney Drive and Cooper Road are within our area. Sites close to Windlesham are covered too, including Brick Hill (1 mile east), Lightwater (1 mile south-west), Bagshot (2 miles west), Donkey Town (2 miles south) and Broomhall (2 miles north-east). A short drive away, we cover Guildford (9 miles south-east), Woking (5 miles south-east), Camberley (4 miles south-west), Farnham (12 miles south-west), Egham (6 miles north-east) and Walton-on-Thames (11 miles east).
Local landmarks in Windlesham
Recent enquiries here include premises near The Sun pub, Brentmoor Heath and Gordon's School, among other places. Windlesham’s nearest station is Bagshot station, roughly 1.4 miles west of the centre. Well-known places in the area include Chobham Museum (2.6 miles south-east) and Heatherwood Hospital (3.3 miles north-west). The countryside around Windlesham includes Gracious Pond and Virginia Water Lake.