Sealant applicators in Selhurst
Sealant work in Selhurst for main contractors, managing agents and facilities managers: sealant work for offices, shops, hotels and other commercial buildings, with a fixed quote first.
- Layers of sealant, all of them failing
- Gaps behind commercial kitchen worktops and sinks
- Black mould through washroom sealant that won’t clean off
Commercial sealant contractors for businesses in Selhurst
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Commercial sealant contractors in Selhurst, done properly
How long a joint lasts is decided before any sealant leaves the gun. Old silicone gives new sealant nothing to grip, so every trace of it is removed. Primer is used wherever the manufacturer calls for it on that surface, and a backing rod limits the depth to give the sealant room to work. If you’re dealing with smeared sealant across finishes from a rushed job and sanitary sealant that has gone black and patchy, we can put it right, on washrooms and tea points, external facade joints and kitchen worktops and splashbacks alike. A specialist sealant contractor works differently from a general builder: in Selhurst, that means joint design, primers and backing rod as standard.
In an occupied building in Selhurst, the job is planned so areas stay in use: washrooms in turn, floors in sections and entrances kept open.
London’s commercial stock mixes period buildings turned into offices with modern glass and steel, so one job can involve stone, brick, powder-coated frames and laminate in a single visit. Each surface gets its own preparation and, where it’s seen, a sealant colour that sits with it.
Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- Selhurst (SE25, SE20, CR0)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Leave it or put it right?
On many buildings the mastic was done by whichever trade was on site. A specialist applicator takes care of product choice, joint depth and preparation, and they’re where most failures begin. It shows over the following seasons rather than at handover. Failed sealant in a building in Selhurst can quickly affect neighbours, tenants or the floor below. Putting it right early is less disruptive than dealing with the consequences.
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Why choose Mastic Doctor in Selhurst
- CSCS-carded applicators
- Colours chosen to suit frames, cladding or finishes where possible
- A fixed quote before work starts
- Over 20 years of commercial sealing
See how commercial sealant jobs are priced and our accreditations and insurance.
Do you need commercial sealant contractors in Selhurst?
Every sealant joint is a maintenance item. How long one lasts depends on the movement it takes, its exposure to sun and weather, the cleaning regime, the traffic and the product itself. On a busy commercial site several of those pile up at once.
Things that normally lead to an enquiry:
- Messy, uneven beads from earlier work that let the building down
- Damp patches where an external joint has failed
- Frame mastic that has hardened and come away from the wall
- Wall and floor joints that have lost their seal
In hotels such as The Crystal Lodge Hotel, 1.2 miles to the west of Selhurst, refurbishments typically mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.
Comparing quotes
- What the guarantee covers, and for how long
- Which product they’ll use, and why it suits the joint
- Will RAMS and insurance details be available?
- How the existing material will be dealt with
What sets the cost
Sealant work doesn’t have a standard rate, since sites vary so much. What we take into account:
- Whether old sealant has to be cut out first
- Whether the work must be split into stages
- The site’s rules and procedures
- Joint width, depth and condition
Every site prices differently: 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
However big the job, the same details help:
- Asbestos survey details if the building is older
- Any dates the work must fit around
- The site address and postcode
- Anything awkward about access or site hours
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or send photos by email.
How the job changes by surface
Fire-rated seals where specified
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the product’s tested detail. The design and sign-off of fire stopping belong to the designer and building control, and we install to the specification.
Facade and cladding joints
On a facade, a failed joint is often only visible close up. Close-up photos or a site visit tell us what’s needed, and we will confirm the colours available for the specified product.
From enquiry to sign-off
On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before anything is cut or cleaned, and the work typically takes a few hours for one area, or a planned series of visits across a bigger building. For a job in Selhurst, access comes first. Send the building rules and access times with your enquiry.
- Site photographs, drawings or a visit tell us what’s there and how it has failed.
- A fixed quote follows, with removal and preparation included.
- Sequence, access and working times are settled before the first joint is touched.
- Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
- Backing goes in, the new sealant is laid and tooled, and the area is left neat.
- We hand back each area with its cure time and our 12-month guarantee.
Getting the site ready
- Send your site hours and access windows
- Send asbestos survey details if the building is pre-2000
- Tell us which areas need to stay in use
Request a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Advice
Commercial premises in Selhurst
At least three named trading, business or retail sites lie within about 3 miles of Selhurst. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal, often in a colour the occupier specifies. Five care or nursing homes sit less than 2 miles from Selhurst. In care settings, a neat joint at a kitchen worktop or a lounge window is part of keeping the place easy to clean.
Occupiers with premises at both Chaffinch Business Park and Franklin Industrial Estate could have the sealant at each handled under one quote. On a business park such as Chaffinch Business Park, 1.1 miles east of Selhurst, sealant work tends to follow fit-outs: receptions, tea points, washrooms and frame perimeters.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. We cover commercial sites throughout Selhurst, whether it’s a single job or part of a planned programme. Across Greater London, 764 places are covered, including Selhurst. London is covered too, some 7 miles away.
Postcode districts covered here: SE25, SE20 and CR0 for sealant joints. Streets here include Park Road, Court Road and Dixon Road, and sites on any of them can send details for a fixed quote. Main routes into Selhurst include the A213. Sites close to Selhurst are covered too, including South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south). Nearby towns on our patch include London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
Around Selhurst
In Selhurst, that means premises near Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub. Selhurst has its own railway station: Norwood Junction station. Well-known places in the area include Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). The countryside around Selhurst includes Duppas Hill and Dulwich Upper Wood.
Keeping the joints sound
Problems stay small when the joints are checked regularly. Specifically:
- Keep barriers up until the new sealant has cured
- Keep a record of which joints were resealed and when
- Report cracked or peeling sealant early
- Check joints after other trades have worked nearby
Put sealant on the planned maintenance checklist. A periodic look catches splits and lifting edges early, with external elevations and wet areas first in line. If anything looks wrong, ring 01277 525 020 or send details through our quote form with a photo.
An open joint in a food area or toilet collects dirt and moisture that cleaning can’t reach. Environmental health officers look at how cleanable surfaces are.
Questions about Selhurst
Does a hotel in Selhurst need to shut while its sealant is renewed?
In most cases no closure is needed: we work room by room or floor by floor. The plan is built around your bookings.
Can you cope with the access rules in a London building?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. Send the building rules and access times with your enquiry. We allow for the ULEZ, which covers every borough
Are you CHAS accredited?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
Is failed sealant stripped out, or sealed over?
Every scrap of failed sealant is removed before the new bead goes on. Sealing over traps water and lifts once the joint moves, so it isn’t something we do.
Can you handle sealant work across several sites?
Yes, we can. Give us the sites and the scope at each, and we will put together a fixed quote and a sensible order of work.
How long does a typical visit take?
It depends on the scope, though a typical visit normally takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. For bigger or phased jobs, we’ll set out a timescale with the quote.