
Facade and window perimeter sealing in Temple, City of London
Our CSCS-carded applicators take on facade joint and window perimeter sealing on commercial buildings in Temple and the surrounding area. Send photos or drawings for a fixed quote.
- Air leaks through failed facade joints
- Staining on stone next to old sealant
- Failed sealant on precast panel joints
Facade sealing for businesses in Temple
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Why deal with it now?
Leaving failed perimeter sealant also makes the eventual job bigger: edges get wet, render and timber deteriorate and frames can move. Acting at the first sign of splitting keeps the fix simple. Getting scaffold, permits or access booked in Temple takes effort, so it makes sense to deal with every failing joint while access is in place.
A quote for facade joints depends on how many there are, their condition and the access, plus any specification you are working to. Call for a quote.
Why choose Mastic Doctor in Temple
- Colours chosen to suit frames, cladding or finishes where possible
- Commercial sealant work since 2005
- Joints cleaned back to sound surfaces
- Colour agreed before work starts
Read how commercial sealant jobs are priced and our accreditations and insurance.
Facade sealing for commercial buildings in Temple
Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: old sealant out, faces cleaned, depth set and a new bead tooled in. A 12-month guarantee applies to our workmanship. If you’re dealing with weathered facade joints that have lost their grip and facade joints cracked through the middle, we can help, whatever the surface. Looking for mastic applicators who cover Temple? We’ve been sealing commercial buildings since 2005.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building, so tidy, well-planned work matters.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

- Location
- Temple (SE1, WC2H, WC2B)
- Wider area
- City of London
- Cover
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Site staff or a sealant specialist?
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Places near Temple
What else we do in Temple
Owners, agents and contractors
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, with CSCS-carded applicators on site.
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
FAQs: Temple
Can you take on a job at a hospital such as St Bartholomew's 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.
Could you schedule work at a campus like King's College London for the vacation?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do you run new sealant over the existing bead?
No. Fresh silicone won’t grip cured silicone, so the existing bead is removed entirely and the joint cleaned back to sound material. Nothing else gives a bond that lasts.
Can the building stay open while you work?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
Does the weather affect the work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
What sealant work can’t fix
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Arranging specialist high-level access, which is planned with the client
- Water getting in through cracked render or porous masonry
- Render or concrete edges that have broken away
If in doubt, speak to us on 01277 525 020 or send details through our quote form and we’ll say what we think.
Surfaces we seal
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Shopfront frames
- Window and door perimeters
- Cladding panel joints
What we’re called out for in Temple
When sealant lets go of a frame or panel, the cause is often the preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and the joint opens with the first real movement.
Things that usually lead to an enquiry:
- Water coming in around window frames
- Sealant pulling away from frames or panels
- Weathered joints at frame-to-structure perimeters
- Failed sealant on precast panel joints
Building work at universities like King's College London (to the west of Temple) is often timed for the summer, mastic included.
Before you book anyone
- How long is the guarantee, and what does it include?
- Whether their applicators hold CSCS cards
- How they handle RAMS and site documents
- Whether primer will be used where the manufacturer specifies it
From enquiry to sign-off
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. In Temple, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- Access, site rules and timing are settled with the client up front.
- Weather and temperature are checked against the product’s limits.
- Each joint is cut out and the edges inspected.
- Faces are cleaned, primed where needed and backed.
- Facade-grade sealant goes in and is tooled to a tidy concave profile.
- We hand over with our 12-month workmanship guarantee.
Getting the site ready
- Tell us what induction or permit system the site runs
- Send your site hours and access windows
- Clear stock, furniture or equipment away from the joints
Getting a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.
Related advice
Facade sealing in Temple: the local picture
Site traffic in Temple falls within London’s ULEZ, like everywhere else in Greater London. Delivery slots and scarce storage shape how and when the mastic goes in. There are a good number of hotels within about 2 miles of Temple. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.
On a healthcare site such as St Bartholomew's Hospital, 0.6 miles to the north-east of Temple, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. Recladding or extending a unit at a site like Grand Vitesse Industrial Estate (to the south-east of Temple) brings panel joints and frame perimeters into the programme.
Temple is about 1 mile south of St Pancras, in City of London. Temple sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Temple is one of 7 places we cover in City of London for facade joints.
If you need facade sealing in SE1, WC2H and WC2B, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Shoe Lane, Drury Lane and New Square. Being close to the A4 and A40, Temple is easy to get to with materials and equipment. Close to Temple, our area also takes in Temple Bar (1 mile north), Blackfriars (1 mile east), Aldwych (1 mile west), Clare Market (1 mile north-west) and Covent Garden (1 mile west).
Local landmarks in Temple
Locally, jobs take us to sites close to Mercers' School, The Devereux pub and Garden Bridge and the streets around them. Nearby too are British Library of Political and Economic Science (under half a mile north-west), St Mary-at-Hill (1.2 miles east) and London Nautical School (less than half a mile south). There’s a railway station in Temple itself: London Blackfriars station. A little further out are Montfichet's Tower (under half a mile east) and St Philip's Hospital (under half a mile north-west). For a walk, there’s Barnsbury Wood and Ludgate Hill.