Clare Market construction mastic
We carry out mastic packages for new-build and refurbishment projects in Clare Market. Send details for a fixed quote.
- Window and door perimeters that won’t pass inspection
- A mastic package split between trades with no clear owner
- Existing joints on a refurb that need cutting out and resealing
Need construction mastic in Clare Market?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Construction mastic for commercial buildings in Clare Market
A typical mastic package covers more than window perimeters: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place and gives you a consistent finish across the job. If you are dealing with bath and shower joints scraped during the final clean and old sealant on a refurbishment that needs stripping before new work, we can help, on sanitary and kitchen joints, window and door perimeters and cladding and panel joints alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Clare Market is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Construction in a London area such as Clare Market means working on constrained sites: limited storage, booked deliveries and access shared with other trades. Mastic is normally one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.
- Location
- Clare Market (WC2H, W1D, WC2B)
- Region
- Greater London
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
FAQs: Clare Market
Is a hospital such as Royal London Hospital for Integrated Medicine somewhere you can work?
Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.
Can you work around term dates at a campus such as King's College London?
Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we will confirm them alongside the quote.
Does weather affect external mastic work?
External sealing goes ahead only with a dry joint inside the product’s temperature range. Wet or cold joints cause adhesion problems, so we wait rather than redo work.
Do you guarantee new-build sealant work?
It’s backed by our 12-month guarantee, covering how we sealed. Keeping other trades off finished joints prevents most problems.
Will you stick to the specified products?
Specification first, then the maker’s instructions. Preparation, backing and depth follow the product guidance.
Can you clear a mastic snag list before handover?
Yes. We can work through a mastic snag list area by area before handover, cutting out damaged or poor joints and resealing them.
How do you choose the sealant?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Why it’s worth doing now in Clare Market
A quick bead over a damaged joint can get an area past inspection, but it rarely lasts. New sealant laid on old or dirty sealant has nothing to bond to and the defect reappears in the defects period. Damaged joints are removed and resealed from clean faces. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why clients in Clare Market choose us
- A fixed quote before work starts
- One number for every site we cover
- Standard and matched colours in many product ranges
- Failed material removed, not covered up
Diagnose, treat, sign off
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself usually takes a day or two on a small fit-out and several weeks on a large multi-storey package, and we clear our waste as we work. Planning a London job such as one in Clare Market starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- We seal each plot or floor as it’s released to us.
- Every joint is prepared, set to depth and sealed with the specified product.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
What we need from you
- Point out parking and an unloading spot
- Agree which areas must stay open
- Have the specification and drawings to hand
Request a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, ring 01277 525 020 or email drawings and photos.
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Also near Clare Market
Other services in Clare Market
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be one of these:
- Rework caused by others damaging completed areas
- Oversized gaps that need packing or adjustment by others
- Specifying the product where the designer hasn’t
Not sure which it is? You can ring 01277 525 020 or send details through our quote form and we’ll tell you honestly.
Joints and surfaces we work on
- Floor and skirting junctions
- Sanitary and kitchen joints
- Cladding and panel joints
- Window and door perimeters
- Brick and block movement joints
- Internal decorators’ caulk
Contractors’ notes for Clare Market
A good number of hotels sit less than 2 miles from Clare Market. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. The ULEZ covers the whole of Greater London, Clare Market included, so site vehicles need to meet its standards or pay the daily charge. Deliveries are booked and storage is tight, so mastic materials come in as needed.
For contractors on a campus like King's College London, which lies south-east of Clare Market, facade and perimeter sealing has to fit around students and term dates. New units and refits on sites such as Grand Vitesse Industrial Estate (1 mile south-east of Clare Market) need their panel and perimeter joints sealed to the specification.
Clare Market is about 1 mile south of St Pancras, in Greater London. Anywhere in WC2H, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 764 places in Greater London, large and small.
We take on mastic packages across the WC2H, W1D and WC2B postcode area, for business premises of every kind. Streets here include Drury Lane, New Square and Old Square, and sites on any of them can send details for a fixed quote. You’ll find Clare Market on or near the A4 and A301. Just outside Clare Market, we also work in Aldwych (1 mile south), Temple Bar (1 mile east), Covent Garden (1 mile south-west), Temple (1 mile south-east) and Seven Dials (1 mile west). A short drive away, we cover Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).
Local landmarks in Clare Market
Recent enquiries here include premises near Lincoln's Inn Fields, London Nautical School and LSE Shaw Library and the streets around them. Nearby too are Ye Old White Horse pub (less than half a mile north) and Mercers' School (under half a mile north-east). For rail, the closest station is London Charing Cross station, roughly 0.6 miles south-west. A little further out are St Philip's Hospital (less than half a mile north-west) and Montfichet's Tower (0.7 miles east). Open spaces near Clare Market include Ludgate Hill and St. James's Park Lake.
For managing agents and facilities managers
Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so the building keeps working while we do.
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Surface by surface
Window and door perimeters
Inside, a paintable sealant or decorators’ caulk is used where the joint doesn’t move much. The specification decides which, and colour-matched products can be used where the frame is on show.
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line.
Signs you need construction mastic in Clare Market
On construction sites, joints usually fail early because of when they were sealed, not what was used. Sealing before decorators, flooring or other trades have finished leaves joints exposed to damage.
It’s worth sending us details if you spot any of the following:
- Snag items on joints that need redoing before handover
- Frame gaps too wide for sealant alone
- Different trades sealing to different standards
- Sealant knocked or painted over by other trades
New wings at hospitals like Royal London Hospital for Integrated Medicine (to the north of Clare Market) bring long runs of window and panel joints to seal.
Before you book anyone
- Their pre-qualification and accreditations
- What site paperwork they can supply
- How the joint faces will be prepared and primed
- What the guarantee covers, and for how long