Clewer facade sealing
Commercial sealant work in Clewer for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.
- Previous reseals run over old sealant
- Weathered facade joints that have lost their grip
- Failed sealant on precast panel joints
Facade sealing near Clewer
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 Clewer
Facade sealants sit in the sun, rain and frost every day, so they don’t last indefinitely. Life depends on movement, weathering, product choice and the quality of the original work. When the time comes, we cut the old sealant out completely and start again. If you are dealing with staining on stone next to old sealant and old perimeter mastic that has dried out, we can help. Searching for sealant specialists in Clewer? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.
Building work in places the size of Clewer is usually small-scale: a handful of new houses, barn conversions, a school or hall extension. Even a small site needs its perimeter and facade joints sized, backed and sealed properly.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Place
- Clewer (SL4)
- Wider area
- Windsor and Maidenhead
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Different surfaces, different methods
Brick and stone facades
On masonry, the sealant has to suit a porous, textured surface. We avoid acetoxy silicone, which can stain some natural stone, and primers go on where specified.
Render and coated surfaces
Paintable sealants exist for joints that will be coated. We confirm the product with you before starting.
FAQs: Clewer
Is Clewer too far out for you?
Not at all. Clewer is within our area. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Is a hospital such as King Edward VII Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Do your applicators hold CSCS cards?
Yes. We use CSCS-carded applicators.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.
Can you work while the building is occupied?
In the majority of cases, yes. Phased work can be planned so areas stay in use, with each area protected and signed.
Building owners, agents and FMs in Clewer
If you look after buildings for someone else, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in Clewer can sit alongside others in a wider programme across Windsor and Maidenhead.
Quoting for work in Clewer
Before we quote, we look at:
- How accessible the joints are
- Location, for remote and island sites
- Whether the work must be split into stages
- Site requirements such as inductions and permits
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
What to include in your enquiry
There’s no need for a formal survey. These details are enough to start:
- Drawings or a marked-up plan, if available
- When you need the work done
- Asbestos survey details if the building is older
- Access details, including height
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Our process
Tell us your site hours and access windows and we’ll plan around them. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. If neighbouring businesses or buildings around Clewer need work too, visits can be combined. Mention the building’s opening times and we will work within them.
- First we review photos, drawings or what we saw on a visit, and agree how each joint will be reached.
- The old bead is cut away completely, not overlaid.
- Both faces are cleaned and, where the product needs it, primed.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- The new sealant goes in and is tooled firmly onto both faces.
- We walk the finished joints with you before handing over.
Before we start on site
- Let us know about inductions and permits
- Tell us your opening times and when work is allowed
- Warn occupants and staff about the work
Ask for a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
Read more
Keeping the joints sound
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Confirm the survey covers external sealants in older buildings
- Report water ingress at frames as soon as it shows
- Combine resealing with other works that need access
- Insist on a full cut-out when joints are renewed
Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal without guesswork.
In pre-2000 buildings, check the asbestos register before old sealant is cut out. Some older mastics contain it, and if it’s suspected, we stop until it has been tested.
Sites and facades in and around Clewer
There are a good number of hotels within about 2 miles of Clewer. Hotel extensions and refits typically have to fit around bookings, so mastic dates are tight. Clewer is in the South East, one of the UK’s drier regions. Even so, frost and condensation on steel and glass are common on winter mornings, so we time external mastic for dry faces and agree it with the site team.
New units and refits on sites such as Slough Retail Park, 2 miles to the north of Clewer, need their panel and perimeter joints sealed to the specification. University estates such as Royal Holloway University, 4.9 miles south-east of Clewer, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal. When a college such as Windsor College (0.8 miles south-east of Clewer) builds or refurbishes, the mastic package usually has to fit around students and staff.
Clewer is about 1 mile north of Windsor, in Windsor and Maidenhead. Looking for facade sealing in Clewer? We can help, as we do across Windsor and Maidenhead. 60 places across Windsor and Maidenhead fall within our area, Clewer among them. Our Reading page has more on work in that area.
Anyone looking for facade sealing in SL4 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Among the streets we cover are Oak Lane, Vale Road and Mill Lane. With the A308 and A332 nearby, Clewer is easy to get to with materials and equipment. Nearby places we also cover include Windsor (1 mile south), Eton (1 mile north-east), Eton Wick (1 mile north-west), Boveney (1 mile west) and Dedworth (1 mile south-west). A short drive away, we cover Maidenhead (5 miles north-west), Boyn Hill (5 miles west), Cookham (7 miles north-west), Furze Platt (6 miles north-west), Broomhall (6 miles south) and South Ascot (6 miles south).
Near you in Clewer
Recent enquiries here include premises near The Windsor Boys' School, The Windsor Boys' School and The Vansittart Arms. The nearest railway station is Windsor & Eton Central station, about 0.7 miles east of the centre. Other landmarks nearby include Museum of Antiquities (0.7 miles north-east) and King Edward VII Hospital (1 mile south-east). The countryside around Clewer includes Taplow Lake and Bray Pit.
Other services in Clewer
What happens if it’s left?
A few metres of new sealant compare well with replacing ceilings, linings or damaged stock. Leaks travel along the structure. Small buildings around Clewer suffer from failed joints as much as large ones. Catching it early means a reseal rather than repairs.
A quote for facade joints depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.
Why choose Mastic Doctor in Clewer
- Fully insured
- Matching to RAL references, product permitting
- CHAS accredited contractor
- Clear, fixed quotes
Take a look at our cost guide or our accreditations.